#include <common.h>
#include <asm/io.h>
#include <asm/arch/sdram.h>
+#include <errno.h>
#include "sequencer.h"
-#include "sequencer_auto.h"
-#include "sequencer_auto_ac_init.h"
-#include "sequencer_auto_inst_init.h"
-#include "sequencer_defines.h"
static struct socfpga_sdr_rw_load_manager *sdr_rw_load_mgr_regs =
(struct socfpga_sdr_rw_load_manager *)(SDR_PHYGRP_RWMGRGRP_ADDRESS | 0x800);
static struct socfpga_sdr_ctrl *sdr_ctrl =
(struct socfpga_sdr_ctrl *)SDR_CTRLGRP_ADDRESS;
+const struct socfpga_sdram_rw_mgr_config *rwcfg;
+const struct socfpga_sdram_io_config *iocfg;
+const struct socfpga_sdram_misc_config *misccfg;
+
#define DELTA_D 1
/*
STATIC_SKIP_DELAY_LOOPS)
/* calibration steps requested by the rtl */
-uint16_t dyn_calib_steps;
+u16 dyn_calib_steps;
/*
* To make CALIB_SKIP_DELAY_LOOPS a dynamic conditional option
* zero when skipping
*/
-uint16_t skip_delay_mask; /* mask off bits when skipping/not-skipping */
+u16 skip_delay_mask; /* mask off bits when skipping/not-skipping */
#define SKIP_DELAY_LOOP_VALUE_OR_ZERO(non_skip_value) \
((non_skip_value) & skip_delay_mask)
struct gbl_type *gbl;
struct param_type *param;
-uint32_t curr_shadow_reg;
-
-static uint32_t rw_mgr_mem_calibrate_write_test(uint32_t rank_bgn,
- uint32_t write_group, uint32_t use_dm,
- uint32_t all_correct, uint32_t *bit_chk, uint32_t all_ranks);
-static void set_failing_group_stage(uint32_t group, uint32_t stage,
- uint32_t substage)
+static void set_failing_group_stage(u32 group, u32 stage,
+ u32 substage)
{
/*
* Only set the global stage if there was not been any other
if ((dyn_calib_steps & CALIB_SKIP_ALL) == CALIB_SKIP_ALL)
return;
- ratio = RW_MGR_MEM_DQ_PER_READ_DQS /
- RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS;
+ ratio = rwcfg->mem_dq_per_read_dqs /
+ rwcfg->mem_virtual_groups_per_read_dqs;
param->read_correct_mask_vg = (1 << ratio) - 1;
param->write_correct_mask_vg = (1 << ratio) - 1;
- param->read_correct_mask = (1 << RW_MGR_MEM_DQ_PER_READ_DQS) - 1;
- param->write_correct_mask = (1 << RW_MGR_MEM_DQ_PER_WRITE_DQS) - 1;
- ratio = RW_MGR_MEM_DATA_WIDTH /
- RW_MGR_MEM_DATA_MASK_WIDTH;
- param->dm_correct_mask = (1 << ratio) - 1;
+ param->read_correct_mask = (1 << rwcfg->mem_dq_per_read_dqs) - 1;
+ param->write_correct_mask = (1 << rwcfg->mem_dq_per_write_dqs) - 1;
}
/**
odt_mask_0 = 0x0;
odt_mask_1 = 0x0;
} else { /* RW_MGR_ODT_MODE_READ_WRITE */
- switch (RW_MGR_MEM_NUMBER_OF_RANKS) {
+ switch (rwcfg->mem_number_of_ranks) {
case 1: /* 1 Rank */
/* Read: ODT = 0 ; Write: ODT = 1 */
odt_mask_0 = 0x0;
odt_mask_1 = 0x1;
break;
case 2: /* 2 Ranks */
- if (RW_MGR_MEM_NUMBER_OF_CS_PER_DIMM == 1) {
+ if (rwcfg->mem_number_of_cs_per_dimm == 1) {
/*
* - Dual-Slot , Single-Rank (1 CS per DIMM)
* OR
}
}
-static void scc_mgr_set_dqdqs_output_phase(uint32_t write_group, uint32_t phase)
+static void scc_mgr_set_dqdqs_output_phase(u32 write_group, u32 phase)
{
scc_mgr_set(SCC_MGR_DQDQS_OUT_PHASE_OFFSET, write_group, phase);
}
-static void scc_mgr_set_dqs_bus_in_delay(uint32_t read_group, uint32_t delay)
+static void scc_mgr_set_dqs_bus_in_delay(u32 read_group, u32 delay)
{
scc_mgr_set(SCC_MGR_DQS_IN_DELAY_OFFSET, read_group, delay);
}
-static void scc_mgr_set_dqs_en_phase(uint32_t read_group, uint32_t phase)
+static void scc_mgr_set_dqs_en_phase(u32 read_group, u32 phase)
{
scc_mgr_set(SCC_MGR_DQS_EN_PHASE_OFFSET, read_group, phase);
}
-static void scc_mgr_set_dqs_en_delay(uint32_t read_group, uint32_t delay)
+static void scc_mgr_set_dqs_en_delay(u32 read_group, u32 delay)
{
scc_mgr_set(SCC_MGR_DQS_EN_DELAY_OFFSET, read_group, delay);
}
-static void scc_mgr_set_dqs_io_in_delay(uint32_t delay)
+static void scc_mgr_set_dqs_io_in_delay(u32 delay)
{
- scc_mgr_set(SCC_MGR_IO_IN_DELAY_OFFSET, RW_MGR_MEM_DQ_PER_WRITE_DQS,
+ scc_mgr_set(SCC_MGR_IO_IN_DELAY_OFFSET, rwcfg->mem_dq_per_write_dqs,
delay);
}
-static void scc_mgr_set_dq_in_delay(uint32_t dq_in_group, uint32_t delay)
+static void scc_mgr_set_dq_in_delay(u32 dq_in_group, u32 delay)
{
scc_mgr_set(SCC_MGR_IO_IN_DELAY_OFFSET, dq_in_group, delay);
}
-static void scc_mgr_set_dq_out1_delay(uint32_t dq_in_group, uint32_t delay)
+static void scc_mgr_set_dq_out1_delay(u32 dq_in_group, u32 delay)
{
scc_mgr_set(SCC_MGR_IO_OUT1_DELAY_OFFSET, dq_in_group, delay);
}
-static void scc_mgr_set_dqs_out1_delay(uint32_t delay)
+static void scc_mgr_set_dqs_out1_delay(u32 delay)
{
- scc_mgr_set(SCC_MGR_IO_OUT1_DELAY_OFFSET, RW_MGR_MEM_DQ_PER_WRITE_DQS,
+ scc_mgr_set(SCC_MGR_IO_OUT1_DELAY_OFFSET, rwcfg->mem_dq_per_write_dqs,
delay);
}
-static void scc_mgr_set_dm_out1_delay(uint32_t dm, uint32_t delay)
+static void scc_mgr_set_dm_out1_delay(u32 dm, u32 delay)
{
scc_mgr_set(SCC_MGR_IO_OUT1_DELAY_OFFSET,
- RW_MGR_MEM_DQ_PER_WRITE_DQS + 1 + dm,
+ rwcfg->mem_dq_per_write_dqs + 1 + dm,
delay);
}
/* load up dqs config settings */
-static void scc_mgr_load_dqs(uint32_t dqs)
+static void scc_mgr_load_dqs(u32 dqs)
{
writel(dqs, &sdr_scc_mgr->dqs_ena);
}
}
/* load up dq config settings */
-static void scc_mgr_load_dq(uint32_t dq_in_group)
+static void scc_mgr_load_dq(u32 dq_in_group)
{
writel(dq_in_group, &sdr_scc_mgr->dq_ena);
}
/* load up dm config settings */
-static void scc_mgr_load_dm(uint32_t dm)
+static void scc_mgr_load_dm(u32 dm)
{
writel(dm, &sdr_scc_mgr->dm_ena);
}
{
u32 r;
- for (r = 0; r < RW_MGR_MEM_NUMBER_OF_RANKS;
+ for (r = 0; r < rwcfg->mem_number_of_ranks;
r += NUM_RANKS_PER_SHADOW_REG) {
scc_mgr_set(off, grp, val);
read_group, phase, 0);
}
-static void scc_mgr_set_dqdqs_output_phase_all_ranks(uint32_t write_group,
- uint32_t phase)
+static void scc_mgr_set_dqdqs_output_phase_all_ranks(u32 write_group,
+ u32 phase)
{
/*
* USER although the h/w doesn't support different phases per
write_group, phase, 0);
}
-static void scc_mgr_set_dqs_en_delay_all_ranks(uint32_t read_group,
- uint32_t delay)
+static void scc_mgr_set_dqs_en_delay_all_ranks(u32 read_group,
+ u32 delay)
{
/*
* In shadow register mode, the T11 settings are stored in
*/
static void scc_mgr_set_oct_out1_delay(const u32 write_group, const u32 delay)
{
- const int ratio = RW_MGR_MEM_IF_READ_DQS_WIDTH /
- RW_MGR_MEM_IF_WRITE_DQS_WIDTH;
+ const int ratio = rwcfg->mem_if_read_dqs_width /
+ rwcfg->mem_if_write_dqs_width;
const int base = write_group * ratio;
int i;
/*
* USER Zero all DQS config settings, across all groups and all
* shadow registers
*/
- for (r = 0; r < RW_MGR_MEM_NUMBER_OF_RANKS;
+ for (r = 0; r < rwcfg->mem_number_of_ranks;
r += NUM_RANKS_PER_SHADOW_REG) {
- for (i = 0; i < RW_MGR_MEM_IF_READ_DQS_WIDTH; i++) {
+ for (i = 0; i < rwcfg->mem_if_read_dqs_width; i++) {
/*
* The phases actually don't exist on a per-rank basis,
* but there's no harm updating them several times, so
* let's keep the code simple.
*/
- scc_mgr_set_dqs_bus_in_delay(i, IO_DQS_IN_RESERVE);
+ scc_mgr_set_dqs_bus_in_delay(i, iocfg->dqs_in_reserve);
scc_mgr_set_dqs_en_phase(i, 0);
scc_mgr_set_dqs_en_delay(i, 0);
}
- for (i = 0; i < RW_MGR_MEM_IF_WRITE_DQS_WIDTH; i++) {
+ for (i = 0; i < rwcfg->mem_if_write_dqs_width; i++) {
scc_mgr_set_dqdqs_output_phase(i, 0);
/* Arria V/Cyclone V don't have out2. */
- scc_mgr_set_oct_out1_delay(i, IO_DQS_OUT_RESERVE);
+ scc_mgr_set_oct_out1_delay(i, iocfg->dqs_out_reserve);
}
}
*/
static void scc_mgr_load_dqs_for_write_group(const u32 write_group)
{
- const int ratio = RW_MGR_MEM_IF_READ_DQS_WIDTH /
- RW_MGR_MEM_IF_WRITE_DQS_WIDTH;
+ const int ratio = rwcfg->mem_if_read_dqs_width /
+ rwcfg->mem_if_write_dqs_width;
const int base = write_group * ratio;
int i;
/*
{
int i, r;
- for (r = 0; r < RW_MGR_MEM_NUMBER_OF_RANKS;
+ for (r = 0; r < rwcfg->mem_number_of_ranks;
r += NUM_RANKS_PER_SHADOW_REG) {
/* Zero all DQ config settings. */
- for (i = 0; i < RW_MGR_MEM_DQ_PER_WRITE_DQS; i++) {
+ for (i = 0; i < rwcfg->mem_dq_per_write_dqs; i++) {
scc_mgr_set_dq_out1_delay(i, 0);
if (!out_only)
scc_mgr_set_dq_in_delay(i, 0);
scc_mgr_set_dqs_io_in_delay(0);
/* Arria V/Cyclone V don't have out2. */
- scc_mgr_set_dqs_out1_delay(IO_DQS_OUT_RESERVE);
- scc_mgr_set_oct_out1_delay(write_group, IO_DQS_OUT_RESERVE);
+ scc_mgr_set_dqs_out1_delay(iocfg->dqs_out_reserve);
+ scc_mgr_set_oct_out1_delay(write_group, iocfg->dqs_out_reserve);
scc_mgr_load_dqs_for_write_group(write_group);
/* Multicast to all DQS IO enables (only 1 in total). */
* apply and load a particular input delay for the DQ pins in a group
* group_bgn is the index of the first dq pin (in the write group)
*/
-static void scc_mgr_apply_group_dq_in_delay(uint32_t group_bgn, uint32_t delay)
+static void scc_mgr_apply_group_dq_in_delay(u32 group_bgn, u32 delay)
{
- uint32_t i, p;
+ u32 i, p;
- for (i = 0, p = group_bgn; i < RW_MGR_MEM_DQ_PER_READ_DQS; i++, p++) {
+ for (i = 0, p = group_bgn; i < rwcfg->mem_dq_per_read_dqs; i++, p++) {
scc_mgr_set_dq_in_delay(p, delay);
scc_mgr_load_dq(p);
}
{
int i;
- for (i = 0; i < RW_MGR_MEM_DQ_PER_WRITE_DQS; i++) {
+ for (i = 0; i < rwcfg->mem_dq_per_write_dqs; i++) {
scc_mgr_set_dq_out1_delay(i, delay);
scc_mgr_load_dq(i);
}
}
/* apply and load a particular output delay for the DM pins in a group */
-static void scc_mgr_apply_group_dm_out1_delay(uint32_t delay1)
+static void scc_mgr_apply_group_dm_out1_delay(u32 delay1)
{
- uint32_t i;
+ u32 i;
for (i = 0; i < RW_MGR_NUM_DM_PER_WRITE_GROUP; i++) {
scc_mgr_set_dm_out1_delay(i, delay1);
/* apply and load delay on both DQS and OCT out1 */
-static void scc_mgr_apply_group_dqs_io_and_oct_out1(uint32_t write_group,
- uint32_t delay)
+static void scc_mgr_apply_group_dqs_io_and_oct_out1(u32 write_group,
+ u32 delay)
{
scc_mgr_set_dqs_out1_delay(delay);
scc_mgr_load_dqs_io();
u32 i, new_delay;
/* DQ shift */
- for (i = 0; i < RW_MGR_MEM_DQ_PER_WRITE_DQS; i++)
+ for (i = 0; i < rwcfg->mem_dq_per_write_dqs; i++)
scc_mgr_load_dq(i);
/* DM shift */
/* DQS shift */
new_delay = READ_SCC_DQS_IO_OUT2_DELAY + delay;
- if (new_delay > IO_IO_OUT2_DELAY_MAX) {
+ if (new_delay > iocfg->io_out2_delay_max) {
debug_cond(DLEVEL == 1,
"%s:%d (%u, %u) DQS: %u > %d; adding %u to OUT1\n",
__func__, __LINE__, write_group, delay, new_delay,
- IO_IO_OUT2_DELAY_MAX,
- new_delay - IO_IO_OUT2_DELAY_MAX);
- new_delay -= IO_IO_OUT2_DELAY_MAX;
+ iocfg->io_out2_delay_max,
+ new_delay - iocfg->io_out2_delay_max);
+ new_delay -= iocfg->io_out2_delay_max;
scc_mgr_set_dqs_out1_delay(new_delay);
}
/* OCT shift */
new_delay = READ_SCC_OCT_OUT2_DELAY + delay;
- if (new_delay > IO_IO_OUT2_DELAY_MAX) {
+ if (new_delay > iocfg->io_out2_delay_max) {
debug_cond(DLEVEL == 1,
"%s:%d (%u, %u) DQS: %u > %d; adding %u to OUT1\n",
__func__, __LINE__, write_group, delay,
- new_delay, IO_IO_OUT2_DELAY_MAX,
- new_delay - IO_IO_OUT2_DELAY_MAX);
- new_delay -= IO_IO_OUT2_DELAY_MAX;
+ new_delay, iocfg->io_out2_delay_max,
+ new_delay - iocfg->io_out2_delay_max);
+ new_delay -= iocfg->io_out2_delay_max;
scc_mgr_set_oct_out1_delay(write_group, new_delay);
}
{
int r;
- for (r = 0; r < RW_MGR_MEM_NUMBER_OF_RANKS;
+ for (r = 0; r < rwcfg->mem_number_of_ranks;
r += NUM_RANKS_PER_SHADOW_REG) {
scc_mgr_apply_group_all_out_delay_add(write_group, delay);
writel(0, &sdr_scc_mgr->update);
* we always jump.
*/
writel(0xff, &sdr_rw_load_mgr_regs->load_cntr0);
- writel(RW_MGR_RETURN, &sdr_rw_load_jump_mgr_regs->load_jump_add0);
+ writel(rwcfg->rreturn, &sdr_rw_load_jump_mgr_regs->load_jump_add0);
}
-/*
- * should always use constants as argument to ensure all computations are
- * performed at compile time
+/**
+ * delay_for_n_mem_clocks() - Delay for N memory clocks
+ * @clocks: Length of the delay
+ *
+ * Delay for N memory clocks.
*/
-static void delay_for_n_mem_clocks(const uint32_t clocks)
+static void delay_for_n_mem_clocks(const u32 clocks)
{
- uint32_t afi_clocks;
- uint8_t inner = 0;
- uint8_t outer = 0;
- uint16_t c_loop = 0;
+ u32 afi_clocks;
+ u16 c_loop;
+ u8 inner;
+ u8 outer;
debug("%s:%d: clocks=%u ... start\n", __func__, __LINE__, clocks);
-
- afi_clocks = (clocks + AFI_RATE_RATIO-1) / AFI_RATE_RATIO;
- /* scale (rounding up) to get afi clocks */
+ /* Scale (rounding up) to get afi clocks. */
+ afi_clocks = DIV_ROUND_UP(clocks, misccfg->afi_rate_ratio);
+ if (afi_clocks) /* Temporary underflow protection */
+ afi_clocks--;
/*
- * Note, we don't bother accounting for being off a little bit
- * because of a few extra instructions in outer loops
- * Note, the loops have a test at the end, and do the test before
- * the decrement, and so always perform the loop
+ * Note, we don't bother accounting for being off a little
+ * bit because of a few extra instructions in outer loops.
+ * Note, the loops have a test at the end, and do the test
+ * before the decrement, and so always perform the loop
* 1 time more than the counter value
*/
- if (afi_clocks == 0) {
- ;
- } else if (afi_clocks <= 0x100) {
- inner = afi_clocks-1;
- outer = 0;
- c_loop = 0;
- } else if (afi_clocks <= 0x10000) {
- inner = 0xff;
- outer = (afi_clocks-1) >> 8;
- c_loop = 0;
- } else {
- inner = 0xff;
- outer = 0xff;
- c_loop = (afi_clocks-1) >> 16;
- }
+ c_loop = afi_clocks >> 16;
+ outer = c_loop ? 0xff : (afi_clocks >> 8);
+ inner = outer ? 0xff : afi_clocks;
/*
* rom instructions are structured as follows:
* and sequencer rom and keeps the delays more accurate and reduces
* overhead
*/
- if (afi_clocks <= 0x100) {
+ if (afi_clocks < 0x100) {
writel(SKIP_DELAY_LOOP_VALUE_OR_ZERO(inner),
&sdr_rw_load_mgr_regs->load_cntr1);
- writel(RW_MGR_IDLE_LOOP1,
+ writel(rwcfg->idle_loop1,
&sdr_rw_load_jump_mgr_regs->load_jump_add1);
- writel(RW_MGR_IDLE_LOOP1, SDR_PHYGRP_RWMGRGRP_ADDRESS |
+ writel(rwcfg->idle_loop1, SDR_PHYGRP_RWMGRGRP_ADDRESS |
RW_MGR_RUN_SINGLE_GROUP_OFFSET);
} else {
writel(SKIP_DELAY_LOOP_VALUE_OR_ZERO(inner),
writel(SKIP_DELAY_LOOP_VALUE_OR_ZERO(outer),
&sdr_rw_load_mgr_regs->load_cntr1);
- writel(RW_MGR_IDLE_LOOP2,
+ writel(rwcfg->idle_loop2,
&sdr_rw_load_jump_mgr_regs->load_jump_add0);
- writel(RW_MGR_IDLE_LOOP2,
+ writel(rwcfg->idle_loop2,
&sdr_rw_load_jump_mgr_regs->load_jump_add1);
- /* hack to get around compiler not being smart enough */
- if (afi_clocks <= 0x10000) {
- /* only need to run once */
- writel(RW_MGR_IDLE_LOOP2, SDR_PHYGRP_RWMGRGRP_ADDRESS |
- RW_MGR_RUN_SINGLE_GROUP_OFFSET);
- } else {
- do {
- writel(RW_MGR_IDLE_LOOP2,
- SDR_PHYGRP_RWMGRGRP_ADDRESS |
- RW_MGR_RUN_SINGLE_GROUP_OFFSET);
- } while (c_loop-- != 0);
- }
+ do {
+ writel(rwcfg->idle_loop2,
+ SDR_PHYGRP_RWMGRGRP_ADDRESS |
+ RW_MGR_RUN_SINGLE_GROUP_OFFSET);
+ } while (c_loop-- != 0);
}
debug("%s:%d clocks=%u ... end\n", __func__, __LINE__, clocks);
}
*/
static void rw_mgr_mem_init_load_regs(u32 cntr0, u32 cntr1, u32 cntr2, u32 jump)
{
- uint32_t grpaddr = SDR_PHYGRP_RWMGRGRP_ADDRESS |
+ u32 grpaddr = SDR_PHYGRP_RWMGRGRP_ADDRESS |
RW_MGR_RUN_SINGLE_GROUP_OFFSET;
/* Load counters */
RW_MGR_RUN_SINGLE_GROUP_OFFSET;
u32 r;
- for (r = 0; r < RW_MGR_MEM_NUMBER_OF_RANKS; r++) {
- if (param->skip_ranks[r]) {
- /* request to skip the rank */
- continue;
- }
-
+ for (r = 0; r < rwcfg->mem_number_of_ranks; r++) {
/* set rank */
set_rank_and_odt_mask(r, RW_MGR_ODT_MODE_OFF);
/* precharge all banks ... */
if (precharge)
- writel(RW_MGR_PRECHARGE_ALL, grpaddr);
+ writel(rwcfg->precharge_all, grpaddr);
/*
* USER Use Mirror-ed commands for odd ranks if address
* mirrorring is on
*/
- if ((RW_MGR_MEM_ADDRESS_MIRRORING >> r) & 0x1) {
+ if ((rwcfg->mem_address_mirroring >> r) & 0x1) {
set_jump_as_return();
- writel(RW_MGR_MRS2_MIRR, grpaddr);
+ writel(rwcfg->mrs2_mirr, grpaddr);
delay_for_n_mem_clocks(4);
set_jump_as_return();
- writel(RW_MGR_MRS3_MIRR, grpaddr);
+ writel(rwcfg->mrs3_mirr, grpaddr);
delay_for_n_mem_clocks(4);
set_jump_as_return();
- writel(RW_MGR_MRS1_MIRR, grpaddr);
+ writel(rwcfg->mrs1_mirr, grpaddr);
delay_for_n_mem_clocks(4);
set_jump_as_return();
writel(fin1, grpaddr);
} else {
set_jump_as_return();
- writel(RW_MGR_MRS2, grpaddr);
+ writel(rwcfg->mrs2, grpaddr);
delay_for_n_mem_clocks(4);
set_jump_as_return();
- writel(RW_MGR_MRS3, grpaddr);
+ writel(rwcfg->mrs3, grpaddr);
delay_for_n_mem_clocks(4);
set_jump_as_return();
- writel(RW_MGR_MRS1, grpaddr);
+ writel(rwcfg->mrs1, grpaddr);
set_jump_as_return();
writel(fin2, grpaddr);
}
continue;
set_jump_as_return();
- writel(RW_MGR_ZQCL, grpaddr);
+ writel(rwcfg->zqcl, grpaddr);
/* tZQinit = tDLLK = 512 ck cycles */
delay_for_n_mem_clocks(512);
* One possible solution is n = 0 , a = 256 , b = 106 => a = FF,
* b = 6A
*/
- rw_mgr_mem_init_load_regs(SEQ_TINIT_CNTR0_VAL, SEQ_TINIT_CNTR1_VAL,
- SEQ_TINIT_CNTR2_VAL,
- RW_MGR_INIT_RESET_0_CKE_0);
+ rw_mgr_mem_init_load_regs(misccfg->tinit_cntr0_val, misccfg->tinit_cntr1_val,
+ misccfg->tinit_cntr2_val,
+ rwcfg->init_reset_0_cke_0);
/* Indicate that memory is stable. */
writel(1, &phy_mgr_cfg->reset_mem_stbl);
* One possible solution is n = 2 , a = 131 , b = 256 => a = 83,
* b = FF
*/
- rw_mgr_mem_init_load_regs(SEQ_TRESET_CNTR0_VAL, SEQ_TRESET_CNTR1_VAL,
- SEQ_TRESET_CNTR2_VAL,
- RW_MGR_INIT_RESET_1_CKE_0);
+ rw_mgr_mem_init_load_regs(misccfg->treset_cntr0_val, misccfg->treset_cntr1_val,
+ misccfg->treset_cntr2_val,
+ rwcfg->init_reset_1_cke_0);
/* Bring up clock enable. */
/* tXRP < 250 ck cycles */
delay_for_n_mem_clocks(250);
- rw_mgr_mem_load_user(RW_MGR_MRS0_DLL_RESET_MIRR, RW_MGR_MRS0_DLL_RESET,
+ rw_mgr_mem_load_user(rwcfg->mrs0_dll_reset_mirr, rwcfg->mrs0_dll_reset,
0);
}
-/*
- * At the end of calibration we have to program the user settings in, and
- * USER hand off the memory to the user.
+/**
+ * rw_mgr_mem_handoff() - Hand off the memory to user
+ *
+ * At the end of calibration we have to program the user settings in
+ * and hand off the memory to the user.
*/
static void rw_mgr_mem_handoff(void)
{
- rw_mgr_mem_load_user(RW_MGR_MRS0_USER_MIRR, RW_MGR_MRS0_USER, 1);
+ rw_mgr_mem_load_user(rwcfg->mrs0_user_mirr, rwcfg->mrs0_user, 1);
/*
- * USER need to wait tMOD (12CK or 15ns) time before issuing
- * other commands, but we will have plenty of NIOS cycles before
- * actual handoff so its okay.
+ * Need to wait tMOD (12CK or 15ns) time before issuing other
+ * commands, but we will have plenty of NIOS cycles before actual
+ * handoff so its okay.
*/
}
-/*
- * performs a guaranteed read on the patterns we are going to use during a
- * read test to ensure memory works
+/**
+ * rw_mgr_mem_calibrate_write_test_issue() - Issue write test command
+ * @group: Write Group
+ * @use_dm: Use DM
+ *
+ * Issue write test command. Two variants are provided, one that just tests
+ * a write pattern and another that tests datamask functionality.
*/
-static uint32_t rw_mgr_mem_calibrate_read_test_patterns(uint32_t rank_bgn,
- uint32_t group, uint32_t num_tries, uint32_t *bit_chk,
- uint32_t all_ranks)
+static void rw_mgr_mem_calibrate_write_test_issue(u32 group,
+ u32 test_dm)
{
- uint32_t r, vg;
- uint32_t correct_mask_vg;
- uint32_t tmp_bit_chk;
- uint32_t rank_end = all_ranks ? RW_MGR_MEM_NUMBER_OF_RANKS :
- (rank_bgn + NUM_RANKS_PER_SHADOW_REG);
- uint32_t addr;
- uint32_t base_rw_mgr;
+ const u32 quick_write_mode =
+ (STATIC_CALIB_STEPS & CALIB_SKIP_WRITES) &&
+ misccfg->enable_super_quick_calibration;
+ u32 mcc_instruction;
+ u32 rw_wl_nop_cycles;
- *bit_chk = param->read_correct_mask;
- correct_mask_vg = param->read_correct_mask_vg;
+ /*
+ * Set counter and jump addresses for the right
+ * number of NOP cycles.
+ * The number of supported NOP cycles can range from -1 to infinity
+ * Three different cases are handled:
+ *
+ * 1. For a number of NOP cycles greater than 0, the RW Mgr looping
+ * mechanism will be used to insert the right number of NOPs
+ *
+ * 2. For a number of NOP cycles equals to 0, the micro-instruction
+ * issuing the write command will jump straight to the
+ * micro-instruction that turns on DQS (for DDRx), or outputs write
+ * data (for RLD), skipping
+ * the NOP micro-instruction all together
+ *
+ * 3. A number of NOP cycles equal to -1 indicates that DQS must be
+ * turned on in the same micro-instruction that issues the write
+ * command. Then we need
+ * to directly jump to the micro-instruction that sends out the data
+ *
+ * NOTE: Implementing this mechanism uses 2 RW Mgr jump-counters
+ * (2 and 3). One jump-counter (0) is used to perform multiple
+ * write-read operations.
+ * one counter left to issue this command in "multiple-group" mode
+ */
+
+ rw_wl_nop_cycles = gbl->rw_wl_nop_cycles;
+
+ if (rw_wl_nop_cycles == -1) {
+ /*
+ * CNTR 2 - We want to execute the special write operation that
+ * turns on DQS right away and then skip directly to the
+ * instruction that sends out the data. We set the counter to a
+ * large number so that the jump is always taken.
+ */
+ writel(0xFF, &sdr_rw_load_mgr_regs->load_cntr2);
+
+ /* CNTR 3 - Not used */
+ if (test_dm) {
+ mcc_instruction = rwcfg->lfsr_wr_rd_dm_bank_0_wl_1;
+ writel(rwcfg->lfsr_wr_rd_dm_bank_0_data,
+ &sdr_rw_load_jump_mgr_regs->load_jump_add2);
+ writel(rwcfg->lfsr_wr_rd_dm_bank_0_nop,
+ &sdr_rw_load_jump_mgr_regs->load_jump_add3);
+ } else {
+ mcc_instruction = rwcfg->lfsr_wr_rd_bank_0_wl_1;
+ writel(rwcfg->lfsr_wr_rd_bank_0_data,
+ &sdr_rw_load_jump_mgr_regs->load_jump_add2);
+ writel(rwcfg->lfsr_wr_rd_bank_0_nop,
+ &sdr_rw_load_jump_mgr_regs->load_jump_add3);
+ }
+ } else if (rw_wl_nop_cycles == 0) {
+ /*
+ * CNTR 2 - We want to skip the NOP operation and go straight
+ * to the DQS enable instruction. We set the counter to a large
+ * number so that the jump is always taken.
+ */
+ writel(0xFF, &sdr_rw_load_mgr_regs->load_cntr2);
+
+ /* CNTR 3 - Not used */
+ if (test_dm) {
+ mcc_instruction = rwcfg->lfsr_wr_rd_dm_bank_0;
+ writel(rwcfg->lfsr_wr_rd_dm_bank_0_dqs,
+ &sdr_rw_load_jump_mgr_regs->load_jump_add2);
+ } else {
+ mcc_instruction = rwcfg->lfsr_wr_rd_bank_0;
+ writel(rwcfg->lfsr_wr_rd_bank_0_dqs,
+ &sdr_rw_load_jump_mgr_regs->load_jump_add2);
+ }
+ } else {
+ /*
+ * CNTR 2 - In this case we want to execute the next instruction
+ * and NOT take the jump. So we set the counter to 0. The jump
+ * address doesn't count.
+ */
+ writel(0x0, &sdr_rw_load_mgr_regs->load_cntr2);
+ writel(0x0, &sdr_rw_load_jump_mgr_regs->load_jump_add2);
+
+ /*
+ * CNTR 3 - Set the nop counter to the number of cycles we
+ * need to loop for, minus 1.
+ */
+ writel(rw_wl_nop_cycles - 1, &sdr_rw_load_mgr_regs->load_cntr3);
+ if (test_dm) {
+ mcc_instruction = rwcfg->lfsr_wr_rd_dm_bank_0;
+ writel(rwcfg->lfsr_wr_rd_dm_bank_0_nop,
+ &sdr_rw_load_jump_mgr_regs->load_jump_add3);
+ } else {
+ mcc_instruction = rwcfg->lfsr_wr_rd_bank_0;
+ writel(rwcfg->lfsr_wr_rd_bank_0_nop,
+ &sdr_rw_load_jump_mgr_regs->load_jump_add3);
+ }
+ }
+
+ writel(0, SDR_PHYGRP_RWMGRGRP_ADDRESS |
+ RW_MGR_RESET_READ_DATAPATH_OFFSET);
+
+ if (quick_write_mode)
+ writel(0x08, &sdr_rw_load_mgr_regs->load_cntr0);
+ else
+ writel(0x40, &sdr_rw_load_mgr_regs->load_cntr0);
+
+ writel(mcc_instruction, &sdr_rw_load_jump_mgr_regs->load_jump_add0);
+
+ /*
+ * CNTR 1 - This is used to ensure enough time elapses
+ * for read data to come back.
+ */
+ writel(0x30, &sdr_rw_load_mgr_regs->load_cntr1);
+
+ if (test_dm) {
+ writel(rwcfg->lfsr_wr_rd_dm_bank_0_wait,
+ &sdr_rw_load_jump_mgr_regs->load_jump_add1);
+ } else {
+ writel(rwcfg->lfsr_wr_rd_bank_0_wait,
+ &sdr_rw_load_jump_mgr_regs->load_jump_add1);
+ }
+
+ writel(mcc_instruction, (SDR_PHYGRP_RWMGRGRP_ADDRESS |
+ RW_MGR_RUN_SINGLE_GROUP_OFFSET) +
+ (group << 2));
+}
+
+/**
+ * rw_mgr_mem_calibrate_write_test() - Test writes, check for single/multiple pass
+ * @rank_bgn: Rank number
+ * @write_group: Write Group
+ * @use_dm: Use DM
+ * @all_correct: All bits must be correct in the mask
+ * @bit_chk: Resulting bit mask after the test
+ * @all_ranks: Test all ranks
+ *
+ * Test writes, can check for a single bit pass or multiple bit pass.
+ */
+static int
+rw_mgr_mem_calibrate_write_test(const u32 rank_bgn, const u32 write_group,
+ const u32 use_dm, const u32 all_correct,
+ u32 *bit_chk, const u32 all_ranks)
+{
+ const u32 rank_end = all_ranks ?
+ rwcfg->mem_number_of_ranks :
+ (rank_bgn + NUM_RANKS_PER_SHADOW_REG);
+ const u32 shift_ratio = rwcfg->mem_dq_per_write_dqs /
+ rwcfg->mem_virtual_groups_per_write_dqs;
+ const u32 correct_mask_vg = param->write_correct_mask_vg;
+
+ u32 tmp_bit_chk, base_rw_mgr;
+ int vg, r;
+
+ *bit_chk = param->write_correct_mask;
for (r = rank_bgn; r < rank_end; r++) {
- if (param->skip_ranks[r])
- /* request to skip the rank */
- continue;
+ /* Set rank */
+ set_rank_and_odt_mask(r, RW_MGR_ODT_MODE_READ_WRITE);
- /* set rank */
+ tmp_bit_chk = 0;
+ for (vg = rwcfg->mem_virtual_groups_per_write_dqs - 1;
+ vg >= 0; vg--) {
+ /* Reset the FIFOs to get pointers to known state. */
+ writel(0, &phy_mgr_cmd->fifo_reset);
+
+ rw_mgr_mem_calibrate_write_test_issue(
+ write_group *
+ rwcfg->mem_virtual_groups_per_write_dqs + vg,
+ use_dm);
+
+ base_rw_mgr = readl(SDR_PHYGRP_RWMGRGRP_ADDRESS);
+ tmp_bit_chk <<= shift_ratio;
+ tmp_bit_chk |= (correct_mask_vg & ~(base_rw_mgr));
+ }
+
+ *bit_chk &= tmp_bit_chk;
+ }
+
+ set_rank_and_odt_mask(0, RW_MGR_ODT_MODE_OFF);
+ if (all_correct) {
+ debug_cond(DLEVEL == 2,
+ "write_test(%u,%u,ALL) : %u == %u => %i\n",
+ write_group, use_dm, *bit_chk,
+ param->write_correct_mask,
+ *bit_chk == param->write_correct_mask);
+ return *bit_chk == param->write_correct_mask;
+ } else {
+ set_rank_and_odt_mask(0, RW_MGR_ODT_MODE_OFF);
+ debug_cond(DLEVEL == 2,
+ "write_test(%u,%u,ONE) : %u != %i => %i\n",
+ write_group, use_dm, *bit_chk, 0, *bit_chk != 0);
+ return *bit_chk != 0x00;
+ }
+}
+
+/**
+ * rw_mgr_mem_calibrate_read_test_patterns() - Read back test patterns
+ * @rank_bgn: Rank number
+ * @group: Read/Write Group
+ * @all_ranks: Test all ranks
+ *
+ * Performs a guaranteed read on the patterns we are going to use during a
+ * read test to ensure memory works.
+ */
+static int
+rw_mgr_mem_calibrate_read_test_patterns(const u32 rank_bgn, const u32 group,
+ const u32 all_ranks)
+{
+ const u32 addr = SDR_PHYGRP_RWMGRGRP_ADDRESS |
+ RW_MGR_RUN_SINGLE_GROUP_OFFSET;
+ const u32 addr_offset =
+ (group * rwcfg->mem_virtual_groups_per_read_dqs) << 2;
+ const u32 rank_end = all_ranks ?
+ rwcfg->mem_number_of_ranks :
+ (rank_bgn + NUM_RANKS_PER_SHADOW_REG);
+ const u32 shift_ratio = rwcfg->mem_dq_per_read_dqs /
+ rwcfg->mem_virtual_groups_per_read_dqs;
+ const u32 correct_mask_vg = param->read_correct_mask_vg;
+
+ u32 tmp_bit_chk, base_rw_mgr, bit_chk;
+ int vg, r;
+ int ret = 0;
+
+ bit_chk = param->read_correct_mask;
+
+ for (r = rank_bgn; r < rank_end; r++) {
+ /* Set rank */
set_rank_and_odt_mask(r, RW_MGR_ODT_MODE_READ_WRITE);
/* Load up a constant bursts of read commands */
writel(0x20, &sdr_rw_load_mgr_regs->load_cntr0);
- writel(RW_MGR_GUARANTEED_READ,
+ writel(rwcfg->guaranteed_read,
&sdr_rw_load_jump_mgr_regs->load_jump_add0);
writel(0x20, &sdr_rw_load_mgr_regs->load_cntr1);
- writel(RW_MGR_GUARANTEED_READ_CONT,
+ writel(rwcfg->guaranteed_read_cont,
&sdr_rw_load_jump_mgr_regs->load_jump_add1);
tmp_bit_chk = 0;
- for (vg = RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS-1; ; vg--) {
- /* reset the fifos to get pointers to known state */
-
+ for (vg = rwcfg->mem_virtual_groups_per_read_dqs - 1;
+ vg >= 0; vg--) {
+ /* Reset the FIFOs to get pointers to known state. */
writel(0, &phy_mgr_cmd->fifo_reset);
writel(0, SDR_PHYGRP_RWMGRGRP_ADDRESS |
RW_MGR_RESET_READ_DATAPATH_OFFSET);
-
- tmp_bit_chk = tmp_bit_chk << (RW_MGR_MEM_DQ_PER_READ_DQS
- / RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS);
-
- addr = SDR_PHYGRP_RWMGRGRP_ADDRESS | RW_MGR_RUN_SINGLE_GROUP_OFFSET;
- writel(RW_MGR_GUARANTEED_READ, addr +
- ((group * RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS +
- vg) << 2));
+ writel(rwcfg->guaranteed_read,
+ addr + addr_offset + (vg << 2));
base_rw_mgr = readl(SDR_PHYGRP_RWMGRGRP_ADDRESS);
- tmp_bit_chk = tmp_bit_chk | (correct_mask_vg & (~base_rw_mgr));
-
- if (vg == 0)
- break;
+ tmp_bit_chk <<= shift_ratio;
+ tmp_bit_chk |= correct_mask_vg & ~base_rw_mgr;
}
- *bit_chk &= tmp_bit_chk;
+
+ bit_chk &= tmp_bit_chk;
}
- addr = SDR_PHYGRP_RWMGRGRP_ADDRESS | RW_MGR_RUN_SINGLE_GROUP_OFFSET;
- writel(RW_MGR_CLEAR_DQS_ENABLE, addr + (group << 2));
+ writel(rwcfg->clear_dqs_enable, addr + (group << 2));
set_rank_and_odt_mask(0, RW_MGR_ODT_MODE_OFF);
- debug_cond(DLEVEL == 1, "%s:%d test_load_patterns(%u,ALL) => (%u == %u) =>\
- %lu\n", __func__, __LINE__, group, *bit_chk, param->read_correct_mask,
- (long unsigned int)(*bit_chk == param->read_correct_mask));
- return *bit_chk == param->read_correct_mask;
-}
-static uint32_t rw_mgr_mem_calibrate_read_test_patterns_all_ranks
- (uint32_t group, uint32_t num_tries, uint32_t *bit_chk)
-{
- return rw_mgr_mem_calibrate_read_test_patterns(0, group,
- num_tries, bit_chk, 1);
+ if (bit_chk != param->read_correct_mask)
+ ret = -EIO;
+
+ debug_cond(DLEVEL == 1,
+ "%s:%d test_load_patterns(%u,ALL) => (%u == %u) => %i\n",
+ __func__, __LINE__, group, bit_chk,
+ param->read_correct_mask, ret);
+
+ return ret;
}
-/* load up the patterns we are going to use during a read test */
-static void rw_mgr_mem_calibrate_read_load_patterns(uint32_t rank_bgn,
- uint32_t all_ranks)
+/**
+ * rw_mgr_mem_calibrate_read_load_patterns() - Load up the patterns for read test
+ * @rank_bgn: Rank number
+ * @all_ranks: Test all ranks
+ *
+ * Load up the patterns we are going to use during a read test.
+ */
+static void rw_mgr_mem_calibrate_read_load_patterns(const u32 rank_bgn,
+ const int all_ranks)
{
- uint32_t r;
- uint32_t rank_end = all_ranks ? RW_MGR_MEM_NUMBER_OF_RANKS :
- (rank_bgn + NUM_RANKS_PER_SHADOW_REG);
+ const u32 rank_end = all_ranks ?
+ rwcfg->mem_number_of_ranks :
+ (rank_bgn + NUM_RANKS_PER_SHADOW_REG);
+ u32 r;
debug("%s:%d\n", __func__, __LINE__);
- for (r = rank_bgn; r < rank_end; r++) {
- if (param->skip_ranks[r])
- /* request to skip the rank */
- continue;
+ for (r = rank_bgn; r < rank_end; r++) {
/* set rank */
set_rank_and_odt_mask(r, RW_MGR_ODT_MODE_READ_WRITE);
/* Load up a constant bursts */
writel(0x20, &sdr_rw_load_mgr_regs->load_cntr0);
- writel(RW_MGR_GUARANTEED_WRITE_WAIT0,
+ writel(rwcfg->guaranteed_write_wait0,
&sdr_rw_load_jump_mgr_regs->load_jump_add0);
writel(0x20, &sdr_rw_load_mgr_regs->load_cntr1);
- writel(RW_MGR_GUARANTEED_WRITE_WAIT1,
+ writel(rwcfg->guaranteed_write_wait1,
&sdr_rw_load_jump_mgr_regs->load_jump_add1);
writel(0x04, &sdr_rw_load_mgr_regs->load_cntr2);
- writel(RW_MGR_GUARANTEED_WRITE_WAIT2,
+ writel(rwcfg->guaranteed_write_wait2,
&sdr_rw_load_jump_mgr_regs->load_jump_add2);
writel(0x04, &sdr_rw_load_mgr_regs->load_cntr3);
- writel(RW_MGR_GUARANTEED_WRITE_WAIT3,
+ writel(rwcfg->guaranteed_write_wait3,
&sdr_rw_load_jump_mgr_regs->load_jump_add3);
- writel(RW_MGR_GUARANTEED_WRITE, SDR_PHYGRP_RWMGRGRP_ADDRESS |
+ writel(rwcfg->guaranteed_write, SDR_PHYGRP_RWMGRGRP_ADDRESS |
RW_MGR_RUN_SINGLE_GROUP_OFFSET);
}
set_rank_and_odt_mask(0, RW_MGR_ODT_MODE_OFF);
}
-/*
- * try a read and see if it returns correct data back. has dummy reads
- * inserted into the mix used to align dqs enable. has more thorough checks
- * than the regular read test.
- */
-static uint32_t rw_mgr_mem_calibrate_read_test(uint32_t rank_bgn, uint32_t group,
- uint32_t num_tries, uint32_t all_correct, uint32_t *bit_chk,
- uint32_t all_groups, uint32_t all_ranks)
-{
- uint32_t r, vg;
- uint32_t correct_mask_vg;
- uint32_t tmp_bit_chk;
- uint32_t rank_end = all_ranks ? RW_MGR_MEM_NUMBER_OF_RANKS :
+/**
+ * rw_mgr_mem_calibrate_read_test() - Perform READ test on single rank
+ * @rank_bgn: Rank number
+ * @group: Read/Write group
+ * @num_tries: Number of retries of the test
+ * @all_correct: All bits must be correct in the mask
+ * @bit_chk: Resulting bit mask after the test
+ * @all_groups: Test all R/W groups
+ * @all_ranks: Test all ranks
+ *
+ * Try a read and see if it returns correct data back. Test has dummy reads
+ * inserted into the mix used to align DQS enable. Test has more thorough
+ * checks than the regular read test.
+ */
+static int
+rw_mgr_mem_calibrate_read_test(const u32 rank_bgn, const u32 group,
+ const u32 num_tries, const u32 all_correct,
+ u32 *bit_chk,
+ const u32 all_groups, const u32 all_ranks)
+{
+ const u32 rank_end = all_ranks ? rwcfg->mem_number_of_ranks :
(rank_bgn + NUM_RANKS_PER_SHADOW_REG);
- uint32_t addr;
- uint32_t base_rw_mgr;
+ const u32 quick_read_mode =
+ ((STATIC_CALIB_STEPS & CALIB_SKIP_DELAY_SWEEPS) &&
+ misccfg->enable_super_quick_calibration);
+ u32 correct_mask_vg = param->read_correct_mask_vg;
+ u32 tmp_bit_chk;
+ u32 base_rw_mgr;
+ u32 addr;
- *bit_chk = param->read_correct_mask;
- correct_mask_vg = param->read_correct_mask_vg;
+ int r, vg, ret;
- uint32_t quick_read_mode = (((STATIC_CALIB_STEPS) &
- CALIB_SKIP_DELAY_SWEEPS) && ENABLE_SUPER_QUICK_CALIBRATION);
+ *bit_chk = param->read_correct_mask;
for (r = rank_bgn; r < rank_end; r++) {
- if (param->skip_ranks[r])
- /* request to skip the rank */
- continue;
-
/* set rank */
set_rank_and_odt_mask(r, RW_MGR_ODT_MODE_READ_WRITE);
writel(0x10, &sdr_rw_load_mgr_regs->load_cntr1);
- writel(RW_MGR_READ_B2B_WAIT1,
+ writel(rwcfg->read_b2b_wait1,
&sdr_rw_load_jump_mgr_regs->load_jump_add1);
writel(0x10, &sdr_rw_load_mgr_regs->load_cntr2);
- writel(RW_MGR_READ_B2B_WAIT2,
+ writel(rwcfg->read_b2b_wait2,
&sdr_rw_load_jump_mgr_regs->load_jump_add2);
if (quick_read_mode)
else
writel(0x32, &sdr_rw_load_mgr_regs->load_cntr0);
- writel(RW_MGR_READ_B2B,
+ writel(rwcfg->read_b2b,
&sdr_rw_load_jump_mgr_regs->load_jump_add0);
if (all_groups)
- writel(RW_MGR_MEM_IF_READ_DQS_WIDTH *
- RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS - 1,
+ writel(rwcfg->mem_if_read_dqs_width *
+ rwcfg->mem_virtual_groups_per_read_dqs - 1,
&sdr_rw_load_mgr_regs->load_cntr3);
else
writel(0x0, &sdr_rw_load_mgr_regs->load_cntr3);
- writel(RW_MGR_READ_B2B,
+ writel(rwcfg->read_b2b,
&sdr_rw_load_jump_mgr_regs->load_jump_add3);
tmp_bit_chk = 0;
- for (vg = RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS-1; ; vg--) {
- /* reset the fifos to get pointers to known state */
+ for (vg = rwcfg->mem_virtual_groups_per_read_dqs - 1; vg >= 0;
+ vg--) {
+ /* Reset the FIFOs to get pointers to known state. */
writel(0, &phy_mgr_cmd->fifo_reset);
writel(0, SDR_PHYGRP_RWMGRGRP_ADDRESS |
RW_MGR_RESET_READ_DATAPATH_OFFSET);
- tmp_bit_chk = tmp_bit_chk << (RW_MGR_MEM_DQ_PER_READ_DQS
- / RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS);
-
- if (all_groups)
- addr = SDR_PHYGRP_RWMGRGRP_ADDRESS | RW_MGR_RUN_ALL_GROUPS_OFFSET;
- else
- addr = SDR_PHYGRP_RWMGRGRP_ADDRESS | RW_MGR_RUN_SINGLE_GROUP_OFFSET;
+ if (all_groups) {
+ addr = SDR_PHYGRP_RWMGRGRP_ADDRESS |
+ RW_MGR_RUN_ALL_GROUPS_OFFSET;
+ } else {
+ addr = SDR_PHYGRP_RWMGRGRP_ADDRESS |
+ RW_MGR_RUN_SINGLE_GROUP_OFFSET;
+ }
- writel(RW_MGR_READ_B2B, addr +
- ((group * RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS +
+ writel(rwcfg->read_b2b, addr +
+ ((group * rwcfg->mem_virtual_groups_per_read_dqs +
vg) << 2));
base_rw_mgr = readl(SDR_PHYGRP_RWMGRGRP_ADDRESS);
- tmp_bit_chk = tmp_bit_chk | (correct_mask_vg & ~(base_rw_mgr));
-
- if (vg == 0)
- break;
+ tmp_bit_chk <<= rwcfg->mem_dq_per_read_dqs /
+ rwcfg->mem_virtual_groups_per_read_dqs;
+ tmp_bit_chk |= correct_mask_vg & ~(base_rw_mgr);
}
+
*bit_chk &= tmp_bit_chk;
}
addr = SDR_PHYGRP_RWMGRGRP_ADDRESS | RW_MGR_RUN_SINGLE_GROUP_OFFSET;
- writel(RW_MGR_CLEAR_DQS_ENABLE, addr + (group << 2));
+ writel(rwcfg->clear_dqs_enable, addr + (group << 2));
+
+ set_rank_and_odt_mask(0, RW_MGR_ODT_MODE_OFF);
if (all_correct) {
- set_rank_and_odt_mask(0, RW_MGR_ODT_MODE_OFF);
- debug_cond(DLEVEL == 2, "%s:%d read_test(%u,ALL,%u) =>\
- (%u == %u) => %lu", __func__, __LINE__, group,
- all_groups, *bit_chk, param->read_correct_mask,
- (long unsigned int)(*bit_chk ==
- param->read_correct_mask));
- return *bit_chk == param->read_correct_mask;
+ ret = (*bit_chk == param->read_correct_mask);
+ debug_cond(DLEVEL == 2,
+ "%s:%d read_test(%u,ALL,%u) => (%u == %u) => %i\n",
+ __func__, __LINE__, group, all_groups, *bit_chk,
+ param->read_correct_mask, ret);
} else {
- set_rank_and_odt_mask(0, RW_MGR_ODT_MODE_OFF);
- debug_cond(DLEVEL == 2, "%s:%d read_test(%u,ONE,%u) =>\
- (%u != %lu) => %lu\n", __func__, __LINE__,
- group, all_groups, *bit_chk, (long unsigned int)0,
- (long unsigned int)(*bit_chk != 0x00));
- return *bit_chk != 0x00;
+ ret = (*bit_chk != 0x00);
+ debug_cond(DLEVEL == 2,
+ "%s:%d read_test(%u,ONE,%u) => (%u != %u) => %i\n",
+ __func__, __LINE__, group, all_groups, *bit_chk,
+ 0, ret);
}
+
+ return ret;
}
-static uint32_t rw_mgr_mem_calibrate_read_test_all_ranks(uint32_t group,
- uint32_t num_tries, uint32_t all_correct, uint32_t *bit_chk,
- uint32_t all_groups)
+/**
+ * rw_mgr_mem_calibrate_read_test_all_ranks() - Perform READ test on all ranks
+ * @grp: Read/Write group
+ * @num_tries: Number of retries of the test
+ * @all_correct: All bits must be correct in the mask
+ * @all_groups: Test all R/W groups
+ *
+ * Perform a READ test across all memory ranks.
+ */
+static int
+rw_mgr_mem_calibrate_read_test_all_ranks(const u32 grp, const u32 num_tries,
+ const u32 all_correct,
+ const u32 all_groups)
{
- return rw_mgr_mem_calibrate_read_test(0, group, num_tries, all_correct,
- bit_chk, all_groups, 1);
+ u32 bit_chk;
+ return rw_mgr_mem_calibrate_read_test(0, grp, num_tries, all_correct,
+ &bit_chk, all_groups, 1);
}
-static void rw_mgr_incr_vfifo(uint32_t grp, uint32_t *v)
+/**
+ * rw_mgr_incr_vfifo() - Increase VFIFO value
+ * @grp: Read/Write group
+ *
+ * Increase VFIFO value.
+ */
+static void rw_mgr_incr_vfifo(const u32 grp)
{
writel(grp, &phy_mgr_cmd->inc_vfifo_hard_phy);
- (*v)++;
}
-static void rw_mgr_decr_vfifo(uint32_t grp, uint32_t *v)
+/**
+ * rw_mgr_decr_vfifo() - Decrease VFIFO value
+ * @grp: Read/Write group
+ *
+ * Decrease VFIFO value.
+ */
+static void rw_mgr_decr_vfifo(const u32 grp)
{
- uint32_t i;
+ u32 i;
- for (i = 0; i < VFIFO_SIZE-1; i++)
- rw_mgr_incr_vfifo(grp, v);
+ for (i = 0; i < misccfg->read_valid_fifo_size - 1; i++)
+ rw_mgr_incr_vfifo(grp);
}
-static int find_vfifo_read(uint32_t grp, uint32_t *bit_chk)
+/**
+ * find_vfifo_failing_read() - Push VFIFO to get a failing read
+ * @grp: Read/Write group
+ *
+ * Push VFIFO until a failing read happens.
+ */
+static int find_vfifo_failing_read(const u32 grp)
{
- uint32_t v;
- uint32_t fail_cnt = 0;
- uint32_t test_status;
+ u32 v, ret, fail_cnt = 0;
- for (v = 0; v < VFIFO_SIZE; ) {
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: vfifo %u\n",
+ for (v = 0; v < misccfg->read_valid_fifo_size; v++) {
+ debug_cond(DLEVEL == 2, "%s:%d: vfifo %u\n",
__func__, __LINE__, v);
- test_status = rw_mgr_mem_calibrate_read_test_all_ranks
- (grp, 1, PASS_ONE_BIT, bit_chk, 0);
- if (!test_status) {
+ ret = rw_mgr_mem_calibrate_read_test_all_ranks(grp, 1,
+ PASS_ONE_BIT, 0);
+ if (!ret) {
fail_cnt++;
if (fail_cnt == 2)
- break;
+ return v;
}
- /* fiddle with FIFO */
- rw_mgr_incr_vfifo(grp, &v);
+ /* Fiddle with FIFO. */
+ rw_mgr_incr_vfifo(grp);
}
- if (v >= VFIFO_SIZE) {
- /* no failing read found!! Something must have gone wrong */
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: vfifo failed\n",
- __func__, __LINE__);
- return 0;
- } else {
- return v;
- }
+ /* No failing read found! Something must have gone wrong. */
+ debug_cond(DLEVEL == 2, "%s:%d: vfifo failed\n", __func__, __LINE__);
+ return 0;
}
-static int find_working_phase(uint32_t *grp, uint32_t *bit_chk,
- uint32_t dtaps_per_ptap, uint32_t *work_bgn,
- uint32_t *v, uint32_t *d, uint32_t *p,
- uint32_t *i, uint32_t *max_working_cnt)
+/**
+ * sdr_find_phase_delay() - Find DQS enable phase or delay
+ * @working: If 1, look for working phase/delay, if 0, look for non-working
+ * @delay: If 1, look for delay, if 0, look for phase
+ * @grp: Read/Write group
+ * @work: Working window position
+ * @work_inc: Working window increment
+ * @pd: DQS Phase/Delay Iterator
+ *
+ * Find working or non-working DQS enable phase setting.
+ */
+static int sdr_find_phase_delay(int working, int delay, const u32 grp,
+ u32 *work, const u32 work_inc, u32 *pd)
{
- uint32_t found_begin = 0;
- uint32_t tmp_delay = 0;
- uint32_t test_status;
+ const u32 max = delay ? iocfg->dqs_en_delay_max : iocfg->dqs_en_phase_max;
+ u32 ret;
- for (*d = 0; *d <= dtaps_per_ptap; (*d)++, tmp_delay +=
- IO_DELAY_PER_DQS_EN_DCHAIN_TAP) {
- *work_bgn = tmp_delay;
- scc_mgr_set_dqs_en_delay_all_ranks(*grp, *d);
+ for (; *pd <= max; (*pd)++) {
+ if (delay)
+ scc_mgr_set_dqs_en_delay_all_ranks(grp, *pd);
+ else
+ scc_mgr_set_dqs_en_phase_all_ranks(grp, *pd);
- for (*i = 0; *i < VFIFO_SIZE; (*i)++) {
- for (*p = 0; *p <= IO_DQS_EN_PHASE_MAX; (*p)++, *work_bgn +=
- IO_DELAY_PER_OPA_TAP) {
- scc_mgr_set_dqs_en_phase_all_ranks(*grp, *p);
+ ret = rw_mgr_mem_calibrate_read_test_all_ranks(grp, 1,
+ PASS_ONE_BIT, 0);
+ if (!working)
+ ret = !ret;
- test_status =
- rw_mgr_mem_calibrate_read_test_all_ranks
- (*grp, 1, PASS_ONE_BIT, bit_chk, 0);
+ if (ret)
+ return 0;
- if (test_status) {
- *max_working_cnt = 1;
- found_begin = 1;
- break;
- }
- }
+ if (work)
+ *work += work_inc;
+ }
- if (found_begin)
- break;
+ return -EINVAL;
+}
+/**
+ * sdr_find_phase() - Find DQS enable phase
+ * @working: If 1, look for working phase, if 0, look for non-working phase
+ * @grp: Read/Write group
+ * @work: Working window position
+ * @i: Iterator
+ * @p: DQS Phase Iterator
+ *
+ * Find working or non-working DQS enable phase setting.
+ */
+static int sdr_find_phase(int working, const u32 grp, u32 *work,
+ u32 *i, u32 *p)
+{
+ const u32 end = misccfg->read_valid_fifo_size + (working ? 0 : 1);
+ int ret;
- if (*p > IO_DQS_EN_PHASE_MAX)
- /* fiddle with FIFO */
- rw_mgr_incr_vfifo(*grp, v);
- }
+ for (; *i < end; (*i)++) {
+ if (working)
+ *p = 0;
- if (found_begin)
- break;
- }
+ ret = sdr_find_phase_delay(working, 0, grp, work,
+ iocfg->delay_per_opa_tap, p);
+ if (!ret)
+ return 0;
- if (*i >= VFIFO_SIZE) {
- /* cannot find working solution */
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: no vfifo/\
- ptap/dtap\n", __func__, __LINE__);
- return 0;
- } else {
- return 1;
+ if (*p > iocfg->dqs_en_phase_max) {
+ /* Fiddle with FIFO. */
+ rw_mgr_incr_vfifo(grp);
+ if (!working)
+ *p = 0;
+ }
}
+
+ return -EINVAL;
}
-static void sdr_backup_phase(uint32_t *grp, uint32_t *bit_chk,
- uint32_t *work_bgn, uint32_t *v, uint32_t *d,
- uint32_t *p, uint32_t *max_working_cnt)
+/**
+ * sdr_working_phase() - Find working DQS enable phase
+ * @grp: Read/Write group
+ * @work_bgn: Working window start position
+ * @d: dtaps output value
+ * @p: DQS Phase Iterator
+ * @i: Iterator
+ *
+ * Find working DQS enable phase setting.
+ */
+static int sdr_working_phase(const u32 grp, u32 *work_bgn, u32 *d,
+ u32 *p, u32 *i)
{
- uint32_t found_begin = 0;
- uint32_t tmp_delay;
+ const u32 dtaps_per_ptap = iocfg->delay_per_opa_tap /
+ iocfg->delay_per_dqs_en_dchain_tap;
+ int ret;
- /* Special case code for backing up a phase */
+ *work_bgn = 0;
+
+ for (*d = 0; *d <= dtaps_per_ptap; (*d)++) {
+ *i = 0;
+ scc_mgr_set_dqs_en_delay_all_ranks(grp, *d);
+ ret = sdr_find_phase(1, grp, work_bgn, i, p);
+ if (!ret)
+ return 0;
+ *work_bgn += iocfg->delay_per_dqs_en_dchain_tap;
+ }
+
+ /* Cannot find working solution */
+ debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: no vfifo/ptap/dtap\n",
+ __func__, __LINE__);
+ return -EINVAL;
+}
+
+/**
+ * sdr_backup_phase() - Find DQS enable backup phase
+ * @grp: Read/Write group
+ * @work_bgn: Working window start position
+ * @p: DQS Phase Iterator
+ *
+ * Find DQS enable backup phase setting.
+ */
+static void sdr_backup_phase(const u32 grp, u32 *work_bgn, u32 *p)
+{
+ u32 tmp_delay, d;
+ int ret;
+
+ /* Special case code for backing up a phase */
if (*p == 0) {
- *p = IO_DQS_EN_PHASE_MAX;
- rw_mgr_decr_vfifo(*grp, v);
+ *p = iocfg->dqs_en_phase_max;
+ rw_mgr_decr_vfifo(grp);
} else {
(*p)--;
}
- tmp_delay = *work_bgn - IO_DELAY_PER_OPA_TAP;
- scc_mgr_set_dqs_en_phase_all_ranks(*grp, *p);
+ tmp_delay = *work_bgn - iocfg->delay_per_opa_tap;
+ scc_mgr_set_dqs_en_phase_all_ranks(grp, *p);
- for (*d = 0; *d <= IO_DQS_EN_DELAY_MAX && tmp_delay < *work_bgn;
- (*d)++, tmp_delay += IO_DELAY_PER_DQS_EN_DCHAIN_TAP) {
- scc_mgr_set_dqs_en_delay_all_ranks(*grp, *d);
+ for (d = 0; d <= iocfg->dqs_en_delay_max && tmp_delay < *work_bgn; d++) {
+ scc_mgr_set_dqs_en_delay_all_ranks(grp, d);
- if (rw_mgr_mem_calibrate_read_test_all_ranks(*grp, 1,
- PASS_ONE_BIT,
- bit_chk, 0)) {
- found_begin = 1;
+ ret = rw_mgr_mem_calibrate_read_test_all_ranks(grp, 1,
+ PASS_ONE_BIT, 0);
+ if (ret) {
*work_bgn = tmp_delay;
break;
}
- }
- /* We have found a working dtap before the ptap found above */
- if (found_begin == 1)
- (*max_working_cnt)++;
+ tmp_delay += iocfg->delay_per_dqs_en_dchain_tap;
+ }
- /*
- * Restore VFIFO to old state before we decremented it
- * (if needed).
- */
+ /* Restore VFIFO to old state before we decremented it (if needed). */
(*p)++;
- if (*p > IO_DQS_EN_PHASE_MAX) {
+ if (*p > iocfg->dqs_en_phase_max) {
*p = 0;
- rw_mgr_incr_vfifo(*grp, v);
+ rw_mgr_incr_vfifo(grp);
}
- scc_mgr_set_dqs_en_delay_all_ranks(*grp, 0);
+ scc_mgr_set_dqs_en_delay_all_ranks(grp, 0);
}
-static int sdr_nonworking_phase(uint32_t *grp, uint32_t *bit_chk,
- uint32_t *work_bgn, uint32_t *v, uint32_t *d,
- uint32_t *p, uint32_t *i, uint32_t *max_working_cnt,
- uint32_t *work_end)
+/**
+ * sdr_nonworking_phase() - Find non-working DQS enable phase
+ * @grp: Read/Write group
+ * @work_end: Working window end position
+ * @p: DQS Phase Iterator
+ * @i: Iterator
+ *
+ * Find non-working DQS enable phase setting.
+ */
+static int sdr_nonworking_phase(const u32 grp, u32 *work_end, u32 *p, u32 *i)
{
- uint32_t found_end = 0;
+ int ret;
(*p)++;
- *work_end += IO_DELAY_PER_OPA_TAP;
- if (*p > IO_DQS_EN_PHASE_MAX) {
- /* fiddle with FIFO */
+ *work_end += iocfg->delay_per_opa_tap;
+ if (*p > iocfg->dqs_en_phase_max) {
+ /* Fiddle with FIFO. */
*p = 0;
- rw_mgr_incr_vfifo(*grp, v);
+ rw_mgr_incr_vfifo(grp);
}
- for (; *i < VFIFO_SIZE + 1; (*i)++) {
- for (; *p <= IO_DQS_EN_PHASE_MAX; (*p)++, *work_end
- += IO_DELAY_PER_OPA_TAP) {
- scc_mgr_set_dqs_en_phase_all_ranks(*grp, *p);
-
- if (!rw_mgr_mem_calibrate_read_test_all_ranks
- (*grp, 1, PASS_ONE_BIT, bit_chk, 0)) {
- found_end = 1;
- break;
- } else {
- (*max_working_cnt)++;
- }
- }
-
- if (found_end)
- break;
-
- if (*p > IO_DQS_EN_PHASE_MAX) {
- /* fiddle with FIFO */
- rw_mgr_incr_vfifo(*grp, v);
- *p = 0;
- }
+ ret = sdr_find_phase(0, grp, work_end, i, p);
+ if (ret) {
+ /* Cannot see edge of failing read. */
+ debug_cond(DLEVEL == 2, "%s:%d: end: failed\n",
+ __func__, __LINE__);
}
- if (*i >= VFIFO_SIZE + 1) {
- /* cannot see edge of failing read */
- debug_cond(DLEVEL == 2, "%s:%d sdr_nonworking_phase: end:\
- failed\n", __func__, __LINE__);
- return 0;
- } else {
- return 1;
- }
+ return ret;
}
-static int sdr_find_window_centre(uint32_t *grp, uint32_t *bit_chk,
- uint32_t *work_bgn, uint32_t *v, uint32_t *d,
- uint32_t *p, uint32_t *work_mid,
- uint32_t *work_end)
+/**
+ * sdr_find_window_center() - Find center of the working DQS window.
+ * @grp: Read/Write group
+ * @work_bgn: First working settings
+ * @work_end: Last working settings
+ *
+ * Find center of the working DQS enable window.
+ */
+static int sdr_find_window_center(const u32 grp, const u32 work_bgn,
+ const u32 work_end)
{
- int i;
+ u32 work_mid;
int tmp_delay = 0;
+ int i, p, d;
- *work_mid = (*work_bgn + *work_end) / 2;
+ work_mid = (work_bgn + work_end) / 2;
debug_cond(DLEVEL == 2, "work_bgn=%d work_end=%d work_mid=%d\n",
- *work_bgn, *work_end, *work_mid);
+ work_bgn, work_end, work_mid);
/* Get the middle delay to be less than a VFIFO delay */
- for (*p = 0; *p <= IO_DQS_EN_PHASE_MAX;
- (*p)++, tmp_delay += IO_DELAY_PER_OPA_TAP)
- ;
+ tmp_delay = (iocfg->dqs_en_phase_max + 1) * iocfg->delay_per_opa_tap;
+
debug_cond(DLEVEL == 2, "vfifo ptap delay %d\n", tmp_delay);
- while (*work_mid > tmp_delay)
- *work_mid -= tmp_delay;
- debug_cond(DLEVEL == 2, "new work_mid %d\n", *work_mid);
-
- tmp_delay = 0;
- for (*p = 0; *p <= IO_DQS_EN_PHASE_MAX && tmp_delay < *work_mid;
- (*p)++, tmp_delay += IO_DELAY_PER_OPA_TAP)
- ;
- tmp_delay -= IO_DELAY_PER_OPA_TAP;
- debug_cond(DLEVEL == 2, "new p %d, tmp_delay=%d\n", (*p) - 1, tmp_delay);
- for (*d = 0; *d <= IO_DQS_EN_DELAY_MAX && tmp_delay < *work_mid; (*d)++,
- tmp_delay += IO_DELAY_PER_DQS_EN_DCHAIN_TAP)
- ;
- debug_cond(DLEVEL == 2, "new d %d, tmp_delay=%d\n", *d, tmp_delay);
-
- scc_mgr_set_dqs_en_phase_all_ranks(*grp, (*p) - 1);
- scc_mgr_set_dqs_en_delay_all_ranks(*grp, *d);
+ work_mid %= tmp_delay;
+ debug_cond(DLEVEL == 2, "new work_mid %d\n", work_mid);
+
+ tmp_delay = rounddown(work_mid, iocfg->delay_per_opa_tap);
+ if (tmp_delay > iocfg->dqs_en_phase_max * iocfg->delay_per_opa_tap)
+ tmp_delay = iocfg->dqs_en_phase_max * iocfg->delay_per_opa_tap;
+ p = tmp_delay / iocfg->delay_per_opa_tap;
+
+ debug_cond(DLEVEL == 2, "new p %d, tmp_delay=%d\n", p, tmp_delay);
+
+ d = DIV_ROUND_UP(work_mid - tmp_delay, iocfg->delay_per_dqs_en_dchain_tap);
+ if (d > iocfg->dqs_en_delay_max)
+ d = iocfg->dqs_en_delay_max;
+ tmp_delay += d * iocfg->delay_per_dqs_en_dchain_tap;
+
+ debug_cond(DLEVEL == 2, "new d %d, tmp_delay=%d\n", d, tmp_delay);
+
+ scc_mgr_set_dqs_en_phase_all_ranks(grp, p);
+ scc_mgr_set_dqs_en_delay_all_ranks(grp, d);
/*
* push vfifo until we can successfully calibrate. We can do this
* because the largest possible margin in 1 VFIFO cycle.
*/
- for (i = 0; i < VFIFO_SIZE; i++) {
- debug_cond(DLEVEL == 2, "find_dqs_en_phase: center: vfifo=%u\n",
- *v);
- if (rw_mgr_mem_calibrate_read_test_all_ranks(*grp, 1,
+ for (i = 0; i < misccfg->read_valid_fifo_size; i++) {
+ debug_cond(DLEVEL == 2, "find_dqs_en_phase: center\n");
+ if (rw_mgr_mem_calibrate_read_test_all_ranks(grp, 1,
PASS_ONE_BIT,
- bit_chk, 0)) {
- break;
+ 0)) {
+ debug_cond(DLEVEL == 2,
+ "%s:%d center: found: ptap=%u dtap=%u\n",
+ __func__, __LINE__, p, d);
+ return 0;
}
- /* fiddle with FIFO */
- rw_mgr_incr_vfifo(*grp, v);
+ /* Fiddle with FIFO. */
+ rw_mgr_incr_vfifo(grp);
}
- if (i >= VFIFO_SIZE) {
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: center: \
- failed\n", __func__, __LINE__);
- return 0;
- } else {
- return 1;
- }
+ debug_cond(DLEVEL == 2, "%s:%d center: failed.\n",
+ __func__, __LINE__);
+ return -EINVAL;
}
-/* find a good dqs enable to use */
-static uint32_t rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase(uint32_t grp)
+/**
+ * rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase() - Find a good DQS enable to use
+ * @grp: Read/Write Group
+ *
+ * Find a good DQS enable to use.
+ */
+static int rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase(const u32 grp)
{
- uint32_t v, d, p, i;
- uint32_t max_working_cnt;
- uint32_t bit_chk;
- uint32_t dtaps_per_ptap;
- uint32_t work_bgn, work_mid, work_end;
- uint32_t found_passing_read, found_failing_read, initial_failing_dtap;
+ u32 d, p, i;
+ u32 dtaps_per_ptap;
+ u32 work_bgn, work_end;
+ u32 found_passing_read, found_failing_read, initial_failing_dtap;
+ int ret;
debug("%s:%d %u\n", __func__, __LINE__, grp);
scc_mgr_set_dqs_en_delay_all_ranks(grp, 0);
scc_mgr_set_dqs_en_phase_all_ranks(grp, 0);
- /* ************************************************************** */
- /* * Step 0 : Determine number of delay taps for each phase tap * */
- dtaps_per_ptap = IO_DELAY_PER_OPA_TAP/IO_DELAY_PER_DQS_EN_DCHAIN_TAP;
-
- /* ********************************************************* */
- /* * Step 1 : First push vfifo until we get a failing read * */
- v = find_vfifo_read(grp, &bit_chk);
+ /* Step 0: Determine number of delay taps for each phase tap. */
+ dtaps_per_ptap = iocfg->delay_per_opa_tap / iocfg->delay_per_dqs_en_dchain_tap;
- max_working_cnt = 0;
+ /* Step 1: First push vfifo until we get a failing read. */
+ find_vfifo_failing_read(grp);
- /* ******************************************************** */
- /* * step 2: find first working phase, increment in ptaps * */
+ /* Step 2: Find first working phase, increment in ptaps. */
work_bgn = 0;
- if (find_working_phase(&grp, &bit_chk, dtaps_per_ptap, &work_bgn, &v, &d,
- &p, &i, &max_working_cnt) == 0)
- return 0;
+ ret = sdr_working_phase(grp, &work_bgn, &d, &p, &i);
+ if (ret)
+ return ret;
work_end = work_bgn;
/*
- * If d is 0 then the working window covers a phase tap and
- * we can follow the old procedure otherwise, we've found the beginning,
+ * If d is 0 then the working window covers a phase tap and we can
+ * follow the old procedure. Otherwise, we've found the beginning
* and we need to increment the dtaps until we find the end.
*/
if (d == 0) {
- /* ********************************************************* */
- /* * step 3a: if we have room, back off by one and
- increment in dtaps * */
-
- sdr_backup_phase(&grp, &bit_chk, &work_bgn, &v, &d, &p,
- &max_working_cnt);
-
- /* ********************************************************* */
- /* * step 4a: go forward from working phase to non working
- phase, increment in ptaps * */
- if (sdr_nonworking_phase(&grp, &bit_chk, &work_bgn, &v, &d, &p,
- &i, &max_working_cnt, &work_end) == 0)
- return 0;
+ /*
+ * Step 3a: If we have room, back off by one and
+ * increment in dtaps.
+ */
+ sdr_backup_phase(grp, &work_bgn, &p);
- /* ********************************************************* */
- /* * step 5a: back off one from last, increment in dtaps * */
+ /*
+ * Step 4a: go forward from working phase to non working
+ * phase, increment in ptaps.
+ */
+ ret = sdr_nonworking_phase(grp, &work_end, &p, &i);
+ if (ret)
+ return ret;
+
+ /* Step 5a: Back off one from last, increment in dtaps. */
/* Special case code for backing up a phase */
if (p == 0) {
- p = IO_DQS_EN_PHASE_MAX;
- rw_mgr_decr_vfifo(grp, &v);
+ p = iocfg->dqs_en_phase_max;
+ rw_mgr_decr_vfifo(grp);
} else {
p = p - 1;
}
- work_end -= IO_DELAY_PER_OPA_TAP;
+ work_end -= iocfg->delay_per_opa_tap;
scc_mgr_set_dqs_en_phase_all_ranks(grp, p);
- /* * The actual increment of dtaps is done outside of
- the if/else loop to share code */
d = 0;
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: v/p: \
- vfifo=%u ptap=%u\n", __func__, __LINE__,
- v, p);
- } else {
- /* ******************************************************* */
- /* * step 3-5b: Find the right edge of the window using
- delay taps * */
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase:vfifo=%u \
- ptap=%u dtap=%u bgn=%u\n", __func__, __LINE__,
- v, p, d, work_bgn);
-
- work_end = work_bgn;
-
- /* * The actual increment of dtaps is done outside of the
- if/else loop to share code */
-
- /* Only here to counterbalance a subtract later on which is
- not needed if this branch of the algorithm is taken */
- max_working_cnt++;
+ debug_cond(DLEVEL == 2, "%s:%d p: ptap=%u\n",
+ __func__, __LINE__, p);
}
- /* The dtap increment to find the failing edge is done here */
- for (; d <= IO_DQS_EN_DELAY_MAX; d++, work_end +=
- IO_DELAY_PER_DQS_EN_DCHAIN_TAP) {
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: \
- end-2: dtap=%u\n", __func__, __LINE__, d);
- scc_mgr_set_dqs_en_delay_all_ranks(grp, d);
-
- if (!rw_mgr_mem_calibrate_read_test_all_ranks(grp, 1,
- PASS_ONE_BIT,
- &bit_chk, 0)) {
- break;
- }
- }
+ /* The dtap increment to find the failing edge is done here. */
+ sdr_find_phase_delay(0, 1, grp, &work_end,
+ iocfg->delay_per_dqs_en_dchain_tap, &d);
/* Go back to working dtap */
if (d != 0)
- work_end -= IO_DELAY_PER_DQS_EN_DCHAIN_TAP;
+ work_end -= iocfg->delay_per_dqs_en_dchain_tap;
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: v/p/d: vfifo=%u \
- ptap=%u dtap=%u end=%u\n", __func__, __LINE__,
- v, p, d-1, work_end);
+ debug_cond(DLEVEL == 2,
+ "%s:%d p/d: ptap=%u dtap=%u end=%u\n",
+ __func__, __LINE__, p, d - 1, work_end);
if (work_end < work_bgn) {
/* nil range */
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: end-2: \
- failed\n", __func__, __LINE__);
- return 0;
+ debug_cond(DLEVEL == 2, "%s:%d end-2: failed\n",
+ __func__, __LINE__);
+ return -EINVAL;
}
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: found range [%u,%u]\n",
+ debug_cond(DLEVEL == 2, "%s:%d found range [%u,%u]\n",
__func__, __LINE__, work_bgn, work_end);
- /* *************************************************************** */
/*
- * * We need to calculate the number of dtaps that equal a ptap
- * * To do that we'll back up a ptap and re-find the edge of the
- * * window using dtaps
+ * We need to calculate the number of dtaps that equal a ptap.
+ * To do that we'll back up a ptap and re-find the edge of the
+ * window using dtaps
*/
-
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: calculate dtaps_per_ptap \
- for tracking\n", __func__, __LINE__);
+ debug_cond(DLEVEL == 2, "%s:%d calculate dtaps_per_ptap for tracking\n",
+ __func__, __LINE__);
/* Special case code for backing up a phase */
if (p == 0) {
- p = IO_DQS_EN_PHASE_MAX;
- rw_mgr_decr_vfifo(grp, &v);
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: backedup \
- cycle/phase: v=%u p=%u\n", __func__, __LINE__,
- v, p);
+ p = iocfg->dqs_en_phase_max;
+ rw_mgr_decr_vfifo(grp);
+ debug_cond(DLEVEL == 2, "%s:%d backedup cycle/phase: p=%u\n",
+ __func__, __LINE__, p);
} else {
p = p - 1;
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: backedup \
- phase only: v=%u p=%u", __func__, __LINE__,
- v, p);
+ debug_cond(DLEVEL == 2, "%s:%d backedup phase only: p=%u",
+ __func__, __LINE__, p);
}
scc_mgr_set_dqs_en_phase_all_ranks(grp, p);
/*
* Increase dtap until we first see a passing read (in case the
- * window is smaller than a ptap),
- * and then a failing read to mark the edge of the window again
+ * window is smaller than a ptap), and then a failing read to
+ * mark the edge of the window again.
*/
- /* Find a passing read */
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: find passing read\n",
+ /* Find a passing read. */
+ debug_cond(DLEVEL == 2, "%s:%d find passing read\n",
__func__, __LINE__);
- found_passing_read = 0;
- found_failing_read = 0;
- initial_failing_dtap = d;
- for (; d <= IO_DQS_EN_DELAY_MAX; d++) {
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: testing \
- read d=%u\n", __func__, __LINE__, d);
- scc_mgr_set_dqs_en_delay_all_ranks(grp, d);
- if (rw_mgr_mem_calibrate_read_test_all_ranks(grp, 1,
- PASS_ONE_BIT,
- &bit_chk, 0)) {
- found_passing_read = 1;
- break;
- }
- }
+ initial_failing_dtap = d;
+ found_passing_read = !sdr_find_phase_delay(1, 1, grp, NULL, 0, &d);
if (found_passing_read) {
- /* Find a failing read */
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: find failing \
- read\n", __func__, __LINE__);
- for (d = d + 1; d <= IO_DQS_EN_DELAY_MAX; d++) {
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: \
- testing read d=%u\n", __func__, __LINE__, d);
- scc_mgr_set_dqs_en_delay_all_ranks(grp, d);
-
- if (!rw_mgr_mem_calibrate_read_test_all_ranks
- (grp, 1, PASS_ONE_BIT, &bit_chk, 0)) {
- found_failing_read = 1;
- break;
- }
- }
+ /* Find a failing read. */
+ debug_cond(DLEVEL == 2, "%s:%d find failing read\n",
+ __func__, __LINE__);
+ d++;
+ found_failing_read = !sdr_find_phase_delay(0, 1, grp, NULL, 0,
+ &d);
} else {
- debug_cond(DLEVEL == 1, "%s:%d find_dqs_en_phase: failed to \
- calculate dtaps", __func__, __LINE__);
- debug_cond(DLEVEL == 1, "per ptap. Fall back on static value\n");
+ debug_cond(DLEVEL == 1,
+ "%s:%d failed to calculate dtaps per ptap. Fall back on static value\n",
+ __func__, __LINE__);
}
/*
* The dynamically calculated dtaps_per_ptap is only valid if we
* found a passing/failing read. If we didn't, it means d hit the max
- * (IO_DQS_EN_DELAY_MAX). Otherwise, dtaps_per_ptap retains its
+ * (iocfg->dqs_en_delay_max). Otherwise, dtaps_per_ptap retains its
* statically calculated value.
*/
if (found_passing_read && found_failing_read)
dtaps_per_ptap = d - initial_failing_dtap;
writel(dtaps_per_ptap, &sdr_reg_file->dtaps_per_ptap);
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: dtaps_per_ptap=%u \
- - %u = %u", __func__, __LINE__, d,
- initial_failing_dtap, dtaps_per_ptap);
-
- /* ******************************************** */
- /* * step 6: Find the centre of the window * */
- if (sdr_find_window_centre(&grp, &bit_chk, &work_bgn, &v, &d, &p,
- &work_mid, &work_end) == 0)
- return 0;
-
- debug_cond(DLEVEL == 2, "%s:%d find_dqs_en_phase: center found: \
- vfifo=%u ptap=%u dtap=%u\n", __func__, __LINE__,
- v, p-1, d);
- return 1;
-}
-
-/*
- * Try rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase across different
- * dq_in_delay values
- */
-static uint32_t
-rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase_sweep_dq_in_delay
-(uint32_t write_group, uint32_t read_group, uint32_t test_bgn)
-{
- uint32_t found;
- uint32_t i;
- uint32_t p;
- uint32_t d;
- uint32_t r;
-
- const uint32_t delay_step = IO_IO_IN_DELAY_MAX /
- (RW_MGR_MEM_DQ_PER_READ_DQS-1);
- /* we start at zero, so have one less dq to devide among */
-
- debug("%s:%d (%u,%u,%u)", __func__, __LINE__, write_group, read_group,
- test_bgn);
-
- /* try different dq_in_delays since the dq path is shorter than dqs */
-
- for (r = 0; r < RW_MGR_MEM_NUMBER_OF_RANKS;
- r += NUM_RANKS_PER_SHADOW_REG) {
- for (i = 0, p = test_bgn, d = 0; i < RW_MGR_MEM_DQ_PER_READ_DQS; i++, p++, d += delay_step) {
- debug_cond(DLEVEL == 1, "%s:%d rw_mgr_mem_calibrate_\
- vfifo_find_dqs_", __func__, __LINE__);
- debug_cond(DLEVEL == 1, "en_phase_sweep_dq_in_delay: g=%u/%u ",
- write_group, read_group);
- debug_cond(DLEVEL == 1, "r=%u, i=%u p=%u d=%u\n", r, i , p, d);
- scc_mgr_set_dq_in_delay(p, d);
- scc_mgr_load_dq(p);
- }
- writel(0, &sdr_scc_mgr->update);
- }
-
- found = rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase(read_group);
+ debug_cond(DLEVEL == 2, "%s:%d dtaps_per_ptap=%u - %u = %u",
+ __func__, __LINE__, d, initial_failing_dtap, dtaps_per_ptap);
- debug_cond(DLEVEL == 1, "%s:%d rw_mgr_mem_calibrate_vfifo_find_dqs_\
- en_phase_sweep_dq", __func__, __LINE__);
- debug_cond(DLEVEL == 1, "_in_delay: g=%u/%u found=%u; Reseting delay \
- chain to zero\n", write_group, read_group, found);
-
- for (r = 0; r < RW_MGR_MEM_NUMBER_OF_RANKS;
- r += NUM_RANKS_PER_SHADOW_REG) {
- for (i = 0, p = test_bgn; i < RW_MGR_MEM_DQ_PER_READ_DQS;
- i++, p++) {
- scc_mgr_set_dq_in_delay(p, 0);
- scc_mgr_load_dq(p);
- }
- writel(0, &sdr_scc_mgr->update);
- }
+ /* Step 6: Find the centre of the window. */
+ ret = sdr_find_window_center(grp, work_bgn, work_end);
- return found;
+ return ret;
}
-/* per-bit deskew DQ and center */
-static uint32_t rw_mgr_mem_calibrate_vfifo_center(uint32_t rank_bgn,
- uint32_t write_group, uint32_t read_group, uint32_t test_bgn,
- uint32_t use_read_test, uint32_t update_fom)
-{
- uint32_t i, p, d, min_index;
+/**
+ * search_stop_check() - Check if the detected edge is valid
+ * @write: Perform read (Stage 2) or write (Stage 3) calibration
+ * @d: DQS delay
+ * @rank_bgn: Rank number
+ * @write_group: Write Group
+ * @read_group: Read Group
+ * @bit_chk: Resulting bit mask after the test
+ * @sticky_bit_chk: Resulting sticky bit mask after the test
+ * @use_read_test: Perform read test
+ *
+ * Test if the found edge is valid.
+ */
+static u32 search_stop_check(const int write, const int d, const int rank_bgn,
+ const u32 write_group, const u32 read_group,
+ u32 *bit_chk, u32 *sticky_bit_chk,
+ const u32 use_read_test)
+{
+ const u32 ratio = rwcfg->mem_if_read_dqs_width /
+ rwcfg->mem_if_write_dqs_width;
+ const u32 correct_mask = write ? param->write_correct_mask :
+ param->read_correct_mask;
+ const u32 per_dqs = write ? rwcfg->mem_dq_per_write_dqs :
+ rwcfg->mem_dq_per_read_dqs;
+ u32 ret;
/*
- * Store these as signed since there are comparisons with
- * signed numbers.
+ * Stop searching when the read test doesn't pass AND when
+ * we've seen a passing read on every bit.
*/
- uint32_t bit_chk;
- uint32_t sticky_bit_chk;
- int32_t left_edge[RW_MGR_MEM_DQ_PER_READ_DQS];
- int32_t right_edge[RW_MGR_MEM_DQ_PER_READ_DQS];
- int32_t final_dq[RW_MGR_MEM_DQ_PER_READ_DQS];
- int32_t mid;
- int32_t orig_mid_min, mid_min;
- int32_t new_dqs, start_dqs, start_dqs_en, shift_dq, final_dqs,
- final_dqs_en;
- int32_t dq_margin, dqs_margin;
- uint32_t stop;
- uint32_t temp_dq_in_delay1, temp_dq_in_delay2;
- uint32_t addr;
-
- debug("%s:%d: %u %u", __func__, __LINE__, read_group, test_bgn);
-
- addr = SDR_PHYGRP_SCCGRP_ADDRESS | SCC_MGR_DQS_IN_DELAY_OFFSET;
- start_dqs = readl(addr + (read_group << 2));
- if (IO_SHIFT_DQS_EN_WHEN_SHIFT_DQS)
- start_dqs_en = readl(addr + ((read_group << 2)
- - IO_DQS_EN_DELAY_OFFSET));
-
- /* set the left and right edge of each bit to an illegal value */
- /* use (IO_IO_IN_DELAY_MAX + 1) as an illegal value */
- sticky_bit_chk = 0;
- for (i = 0; i < RW_MGR_MEM_DQ_PER_READ_DQS; i++) {
- left_edge[i] = IO_IO_IN_DELAY_MAX + 1;
- right_edge[i] = IO_IO_IN_DELAY_MAX + 1;
- }
+ if (write) { /* WRITE-ONLY */
+ ret = !rw_mgr_mem_calibrate_write_test(rank_bgn, write_group,
+ 0, PASS_ONE_BIT,
+ bit_chk, 0);
+ } else if (use_read_test) { /* READ-ONLY */
+ ret = !rw_mgr_mem_calibrate_read_test(rank_bgn, read_group,
+ NUM_READ_PB_TESTS,
+ PASS_ONE_BIT, bit_chk,
+ 0, 0);
+ } else { /* READ-ONLY */
+ rw_mgr_mem_calibrate_write_test(rank_bgn, write_group, 0,
+ PASS_ONE_BIT, bit_chk, 0);
+ *bit_chk = *bit_chk >> (per_dqs *
+ (read_group - (write_group * ratio)));
+ ret = (*bit_chk == 0);
+ }
+ *sticky_bit_chk = *sticky_bit_chk | *bit_chk;
+ ret = ret && (*sticky_bit_chk == correct_mask);
+ debug_cond(DLEVEL == 2,
+ "%s:%d center(left): dtap=%u => %u == %u && %u",
+ __func__, __LINE__, d,
+ *sticky_bit_chk, correct_mask, ret);
+ return ret;
+}
- /* Search for the left edge of the window for each bit */
- for (d = 0; d <= IO_IO_IN_DELAY_MAX; d++) {
- scc_mgr_apply_group_dq_in_delay(write_group, test_bgn, d);
+/**
+ * search_left_edge() - Find left edge of DQ/DQS working phase
+ * @write: Perform read (Stage 2) or write (Stage 3) calibration
+ * @rank_bgn: Rank number
+ * @write_group: Write Group
+ * @read_group: Read Group
+ * @test_bgn: Rank number to begin the test
+ * @sticky_bit_chk: Resulting sticky bit mask after the test
+ * @left_edge: Left edge of the DQ/DQS phase
+ * @right_edge: Right edge of the DQ/DQS phase
+ * @use_read_test: Perform read test
+ *
+ * Find left edge of DQ/DQS working phase.
+ */
+static void search_left_edge(const int write, const int rank_bgn,
+ const u32 write_group, const u32 read_group, const u32 test_bgn,
+ u32 *sticky_bit_chk,
+ int *left_edge, int *right_edge, const u32 use_read_test)
+{
+ const u32 delay_max = write ? iocfg->io_out1_delay_max : iocfg->io_in_delay_max;
+ const u32 dqs_max = write ? iocfg->io_out1_delay_max : iocfg->dqs_in_delay_max;
+ const u32 per_dqs = write ? rwcfg->mem_dq_per_write_dqs :
+ rwcfg->mem_dq_per_read_dqs;
+ u32 stop, bit_chk;
+ int i, d;
+
+ for (d = 0; d <= dqs_max; d++) {
+ if (write)
+ scc_mgr_apply_group_dq_out1_delay(d);
+ else
+ scc_mgr_apply_group_dq_in_delay(test_bgn, d);
writel(0, &sdr_scc_mgr->update);
- /*
- * Stop searching when the read test doesn't pass AND when
- * we've seen a passing read on every bit.
- */
- if (use_read_test) {
- stop = !rw_mgr_mem_calibrate_read_test(rank_bgn,
- read_group, NUM_READ_PB_TESTS, PASS_ONE_BIT,
- &bit_chk, 0, 0);
- } else {
- rw_mgr_mem_calibrate_write_test(rank_bgn, write_group,
- 0, PASS_ONE_BIT,
- &bit_chk, 0);
- bit_chk = bit_chk >> (RW_MGR_MEM_DQ_PER_READ_DQS *
- (read_group - (write_group *
- RW_MGR_MEM_IF_READ_DQS_WIDTH /
- RW_MGR_MEM_IF_WRITE_DQS_WIDTH)));
- stop = (bit_chk == 0);
- }
- sticky_bit_chk = sticky_bit_chk | bit_chk;
- stop = stop && (sticky_bit_chk == param->read_correct_mask);
- debug_cond(DLEVEL == 2, "%s:%d vfifo_center(left): dtap=%u => %u == %u \
- && %u", __func__, __LINE__, d,
- sticky_bit_chk,
- param->read_correct_mask, stop);
-
- if (stop == 1) {
+ stop = search_stop_check(write, d, rank_bgn, write_group,
+ read_group, &bit_chk, sticky_bit_chk,
+ use_read_test);
+ if (stop == 1)
break;
- } else {
- for (i = 0; i < RW_MGR_MEM_DQ_PER_READ_DQS; i++) {
- if (bit_chk & 1) {
- /* Remember a passing test as the
- left_edge */
- left_edge[i] = d;
- } else {
- /* If a left edge has not been seen yet,
- then a future passing test will mark
- this edge as the right edge */
- if (left_edge[i] ==
- IO_IO_IN_DELAY_MAX + 1) {
- right_edge[i] = -(d + 1);
- }
- }
- bit_chk = bit_chk >> 1;
+
+ /* stop != 1 */
+ for (i = 0; i < per_dqs; i++) {
+ if (bit_chk & 1) {
+ /*
+ * Remember a passing test as
+ * the left_edge.
+ */
+ left_edge[i] = d;
+ } else {
+ /*
+ * If a left edge has not been seen
+ * yet, then a future passing test
+ * will mark this edge as the right
+ * edge.
+ */
+ if (left_edge[i] == delay_max + 1)
+ right_edge[i] = -(d + 1);
}
+ bit_chk >>= 1;
}
}
/* Reset DQ delay chains to 0 */
- scc_mgr_apply_group_dq_in_delay(test_bgn, 0);
- sticky_bit_chk = 0;
- for (i = RW_MGR_MEM_DQ_PER_READ_DQS - 1;; i--) {
- debug_cond(DLEVEL == 2, "%s:%d vfifo_center: left_edge[%u]: \
- %d right_edge[%u]: %d\n", __func__, __LINE__,
- i, left_edge[i], i, right_edge[i]);
+ if (write)
+ scc_mgr_apply_group_dq_out1_delay(0);
+ else
+ scc_mgr_apply_group_dq_in_delay(test_bgn, 0);
+
+ *sticky_bit_chk = 0;
+ for (i = per_dqs - 1; i >= 0; i--) {
+ debug_cond(DLEVEL == 2,
+ "%s:%d vfifo_center: left_edge[%u]: %d right_edge[%u]: %d\n",
+ __func__, __LINE__, i, left_edge[i],
+ i, right_edge[i]);
/*
* Check for cases where we haven't found the left edge,
* which makes our assignment of the the right edge invalid.
* Reset it to the illegal value.
*/
- if ((left_edge[i] == IO_IO_IN_DELAY_MAX + 1) && (
- right_edge[i] != IO_IO_IN_DELAY_MAX + 1)) {
- right_edge[i] = IO_IO_IN_DELAY_MAX + 1;
- debug_cond(DLEVEL == 2, "%s:%d vfifo_center: reset \
- right_edge[%u]: %d\n", __func__, __LINE__,
- i, right_edge[i]);
+ if ((left_edge[i] == delay_max + 1) &&
+ (right_edge[i] != delay_max + 1)) {
+ right_edge[i] = delay_max + 1;
+ debug_cond(DLEVEL == 2,
+ "%s:%d vfifo_center: reset right_edge[%u]: %d\n",
+ __func__, __LINE__, i, right_edge[i]);
}
/*
- * Reset sticky bit (except for bits where we have seen
- * both the left and right edge).
+ * Reset sticky bit
+ * READ: except for bits where we have seen both
+ * the left and right edge.
+ * WRITE: except for bits where we have seen the
+ * left edge.
*/
- sticky_bit_chk = sticky_bit_chk << 1;
- if ((left_edge[i] != IO_IO_IN_DELAY_MAX + 1) &&
- (right_edge[i] != IO_IO_IN_DELAY_MAX + 1)) {
- sticky_bit_chk = sticky_bit_chk | 1;
+ *sticky_bit_chk <<= 1;
+ if (write) {
+ if (left_edge[i] != delay_max + 1)
+ *sticky_bit_chk |= 1;
+ } else {
+ if ((left_edge[i] != delay_max + 1) &&
+ (right_edge[i] != delay_max + 1))
+ *sticky_bit_chk |= 1;
}
-
- if (i == 0)
- break;
}
- /* Search for the right edge of the window for each bit */
- for (d = 0; d <= IO_DQS_IN_DELAY_MAX - start_dqs; d++) {
- scc_mgr_set_dqs_bus_in_delay(read_group, d + start_dqs);
- if (IO_SHIFT_DQS_EN_WHEN_SHIFT_DQS) {
- uint32_t delay = d + start_dqs_en;
- if (delay > IO_DQS_EN_DELAY_MAX)
- delay = IO_DQS_EN_DELAY_MAX;
- scc_mgr_set_dqs_en_delay(read_group, delay);
- }
- scc_mgr_load_dqs(read_group);
- writel(0, &sdr_scc_mgr->update);
+}
- /*
- * Stop searching when the read test doesn't pass AND when
- * we've seen a passing read on every bit.
- */
- if (use_read_test) {
- stop = !rw_mgr_mem_calibrate_read_test(rank_bgn,
- read_group, NUM_READ_PB_TESTS, PASS_ONE_BIT,
- &bit_chk, 0, 0);
- } else {
- rw_mgr_mem_calibrate_write_test(rank_bgn, write_group,
- 0, PASS_ONE_BIT,
- &bit_chk, 0);
- bit_chk = bit_chk >> (RW_MGR_MEM_DQ_PER_READ_DQS *
- (read_group - (write_group *
- RW_MGR_MEM_IF_READ_DQS_WIDTH /
- RW_MGR_MEM_IF_WRITE_DQS_WIDTH)));
- stop = (bit_chk == 0);
+/**
+ * search_right_edge() - Find right edge of DQ/DQS working phase
+ * @write: Perform read (Stage 2) or write (Stage 3) calibration
+ * @rank_bgn: Rank number
+ * @write_group: Write Group
+ * @read_group: Read Group
+ * @start_dqs: DQS start phase
+ * @start_dqs_en: DQS enable start phase
+ * @sticky_bit_chk: Resulting sticky bit mask after the test
+ * @left_edge: Left edge of the DQ/DQS phase
+ * @right_edge: Right edge of the DQ/DQS phase
+ * @use_read_test: Perform read test
+ *
+ * Find right edge of DQ/DQS working phase.
+ */
+static int search_right_edge(const int write, const int rank_bgn,
+ const u32 write_group, const u32 read_group,
+ const int start_dqs, const int start_dqs_en,
+ u32 *sticky_bit_chk,
+ int *left_edge, int *right_edge, const u32 use_read_test)
+{
+ const u32 delay_max = write ? iocfg->io_out1_delay_max : iocfg->io_in_delay_max;
+ const u32 dqs_max = write ? iocfg->io_out1_delay_max : iocfg->dqs_in_delay_max;
+ const u32 per_dqs = write ? rwcfg->mem_dq_per_write_dqs :
+ rwcfg->mem_dq_per_read_dqs;
+ u32 stop, bit_chk;
+ int i, d;
+
+ for (d = 0; d <= dqs_max - start_dqs; d++) {
+ if (write) { /* WRITE-ONLY */
+ scc_mgr_apply_group_dqs_io_and_oct_out1(write_group,
+ d + start_dqs);
+ } else { /* READ-ONLY */
+ scc_mgr_set_dqs_bus_in_delay(read_group, d + start_dqs);
+ if (iocfg->shift_dqs_en_when_shift_dqs) {
+ u32 delay = d + start_dqs_en;
+ if (delay > iocfg->dqs_en_delay_max)
+ delay = iocfg->dqs_en_delay_max;
+ scc_mgr_set_dqs_en_delay(read_group, delay);
+ }
+ scc_mgr_load_dqs(read_group);
}
- sticky_bit_chk = sticky_bit_chk | bit_chk;
- stop = stop && (sticky_bit_chk == param->read_correct_mask);
- debug_cond(DLEVEL == 2, "%s:%d vfifo_center(right): dtap=%u => %u == \
- %u && %u", __func__, __LINE__, d,
- sticky_bit_chk, param->read_correct_mask, stop);
+ writel(0, &sdr_scc_mgr->update);
+ stop = search_stop_check(write, d, rank_bgn, write_group,
+ read_group, &bit_chk, sticky_bit_chk,
+ use_read_test);
if (stop == 1) {
+ if (write && (d == 0)) { /* WRITE-ONLY */
+ for (i = 0; i < rwcfg->mem_dq_per_write_dqs; i++) {
+ /*
+ * d = 0 failed, but it passed when
+ * testing the left edge, so it must be
+ * marginal, set it to -1
+ */
+ if (right_edge[i] == delay_max + 1 &&
+ left_edge[i] != delay_max + 1)
+ right_edge[i] = -1;
+ }
+ }
break;
- } else {
- for (i = 0; i < RW_MGR_MEM_DQ_PER_READ_DQS; i++) {
- if (bit_chk & 1) {
- /* Remember a passing test as
- the right_edge */
- right_edge[i] = d;
+ }
+
+ /* stop != 1 */
+ for (i = 0; i < per_dqs; i++) {
+ if (bit_chk & 1) {
+ /*
+ * Remember a passing test as
+ * the right_edge.
+ */
+ right_edge[i] = d;
+ } else {
+ if (d != 0) {
+ /*
+ * If a right edge has not
+ * been seen yet, then a future
+ * passing test will mark this
+ * edge as the left edge.
+ */
+ if (right_edge[i] == delay_max + 1)
+ left_edge[i] = -(d + 1);
} else {
- if (d != 0) {
- /* If a right edge has not been
- seen yet, then a future passing
- test will mark this edge as the
- left edge */
- if (right_edge[i] ==
- IO_IO_IN_DELAY_MAX + 1) {
- left_edge[i] = -(d + 1);
- }
- } else {
- /* d = 0 failed, but it passed
- when testing the left edge,
- so it must be marginal,
- set it to -1 */
- if (right_edge[i] ==
- IO_IO_IN_DELAY_MAX + 1 &&
- left_edge[i] !=
- IO_IO_IN_DELAY_MAX
- + 1) {
- right_edge[i] = -1;
- }
- /* If a right edge has not been
- seen yet, then a future passing
- test will mark this edge as the
- left edge */
- else if (right_edge[i] ==
- IO_IO_IN_DELAY_MAX +
- 1) {
- left_edge[i] = -(d + 1);
- }
- }
+ /*
+ * d = 0 failed, but it passed
+ * when testing the left edge,
+ * so it must be marginal, set
+ * it to -1
+ */
+ if (right_edge[i] == delay_max + 1 &&
+ left_edge[i] != delay_max + 1)
+ right_edge[i] = -1;
+ /*
+ * If a right edge has not been
+ * seen yet, then a future
+ * passing test will mark this
+ * edge as the left edge.
+ */
+ else if (right_edge[i] == delay_max + 1)
+ left_edge[i] = -(d + 1);
}
-
- debug_cond(DLEVEL == 2, "%s:%d vfifo_center[r,\
- d=%u]: ", __func__, __LINE__, d);
- debug_cond(DLEVEL == 2, "bit_chk_test=%d left_edge[%u]: %d ",
- (int)(bit_chk & 1), i, left_edge[i]);
- debug_cond(DLEVEL == 2, "right_edge[%u]: %d\n", i,
- right_edge[i]);
- bit_chk = bit_chk >> 1;
}
+
+ debug_cond(DLEVEL == 2, "%s:%d center[r,d=%u]: ",
+ __func__, __LINE__, d);
+ debug_cond(DLEVEL == 2,
+ "bit_chk_test=%i left_edge[%u]: %d ",
+ bit_chk & 1, i, left_edge[i]);
+ debug_cond(DLEVEL == 2, "right_edge[%u]: %d\n", i,
+ right_edge[i]);
+ bit_chk >>= 1;
}
}
/* Check that all bits have a window */
- for (i = 0; i < RW_MGR_MEM_DQ_PER_READ_DQS; i++) {
- debug_cond(DLEVEL == 2, "%s:%d vfifo_center: left_edge[%u]: \
- %d right_edge[%u]: %d", __func__, __LINE__,
- i, left_edge[i], i, right_edge[i]);
- if ((left_edge[i] == IO_IO_IN_DELAY_MAX + 1) || (right_edge[i]
- == IO_IO_IN_DELAY_MAX + 1)) {
- /*
- * Restore delay chain settings before letting the loop
- * in rw_mgr_mem_calibrate_vfifo to retry different
- * dqs/ck relationships.
- */
- scc_mgr_set_dqs_bus_in_delay(read_group, start_dqs);
- if (IO_SHIFT_DQS_EN_WHEN_SHIFT_DQS) {
- scc_mgr_set_dqs_en_delay(read_group,
- start_dqs_en);
- }
- scc_mgr_load_dqs(read_group);
- writel(0, &sdr_scc_mgr->update);
-
- debug_cond(DLEVEL == 1, "%s:%d vfifo_center: failed to \
- find edge [%u]: %d %d", __func__, __LINE__,
- i, left_edge[i], right_edge[i]);
- if (use_read_test) {
- set_failing_group_stage(read_group *
- RW_MGR_MEM_DQ_PER_READ_DQS + i,
- CAL_STAGE_VFIFO,
- CAL_SUBSTAGE_VFIFO_CENTER);
- } else {
- set_failing_group_stage(read_group *
- RW_MGR_MEM_DQ_PER_READ_DQS + i,
- CAL_STAGE_VFIFO_AFTER_WRITES,
- CAL_SUBSTAGE_VFIFO_CENTER);
- }
- return 0;
- }
+ for (i = 0; i < per_dqs; i++) {
+ debug_cond(DLEVEL == 2,
+ "%s:%d write_center: left_edge[%u]: %d right_edge[%u]: %d",
+ __func__, __LINE__, i, left_edge[i],
+ i, right_edge[i]);
+ if ((left_edge[i] == dqs_max + 1) ||
+ (right_edge[i] == dqs_max + 1))
+ return i + 1; /* FIXME: If we fail, retval > 0 */
}
+ return 0;
+}
+
+/**
+ * get_window_mid_index() - Find the best middle setting of DQ/DQS phase
+ * @write: Perform read (Stage 2) or write (Stage 3) calibration
+ * @left_edge: Left edge of the DQ/DQS phase
+ * @right_edge: Right edge of the DQ/DQS phase
+ * @mid_min: Best DQ/DQS phase middle setting
+ *
+ * Find index and value of the middle of the DQ/DQS working phase.
+ */
+static int get_window_mid_index(const int write, int *left_edge,
+ int *right_edge, int *mid_min)
+{
+ const u32 per_dqs = write ? rwcfg->mem_dq_per_write_dqs :
+ rwcfg->mem_dq_per_read_dqs;
+ int i, mid, min_index;
+
/* Find middle of window for each DQ bit */
- mid_min = left_edge[0] - right_edge[0];
+ *mid_min = left_edge[0] - right_edge[0];
min_index = 0;
- for (i = 1; i < RW_MGR_MEM_DQ_PER_READ_DQS; i++) {
+ for (i = 1; i < per_dqs; i++) {
mid = left_edge[i] - right_edge[i];
- if (mid < mid_min) {
- mid_min = mid;
+ if (mid < *mid_min) {
+ *mid_min = mid;
min_index = i;
}
}
/*
* -mid_min/2 represents the amount that we need to move DQS.
- * If mid_min is odd and positive we'll need to add one to
- * make sure the rounding in further calculations is correct
- * (always bias to the right), so just add 1 for all positive values.
+ * If mid_min is odd and positive we'll need to add one to make
+ * sure the rounding in further calculations is correct (always
+ * bias to the right), so just add 1 for all positive values.
*/
- if (mid_min > 0)
- mid_min++;
-
- mid_min = mid_min / 2;
-
- debug_cond(DLEVEL == 1, "%s:%d vfifo_center: mid_min=%d (index=%u)\n",
- __func__, __LINE__, mid_min, min_index);
-
- /* Determine the amount we can change DQS (which is -mid_min) */
- orig_mid_min = mid_min;
- new_dqs = start_dqs - mid_min;
- if (new_dqs > IO_DQS_IN_DELAY_MAX)
- new_dqs = IO_DQS_IN_DELAY_MAX;
- else if (new_dqs < 0)
- new_dqs = 0;
+ if (*mid_min > 0)
+ (*mid_min)++;
+ *mid_min = *mid_min / 2;
- mid_min = start_dqs - new_dqs;
- debug_cond(DLEVEL == 1, "vfifo_center: new mid_min=%d new_dqs=%d\n",
- mid_min, new_dqs);
+ debug_cond(DLEVEL == 1, "%s:%d vfifo_center: *mid_min=%d (index=%u)\n",
+ __func__, __LINE__, *mid_min, min_index);
+ return min_index;
+}
- if (IO_SHIFT_DQS_EN_WHEN_SHIFT_DQS) {
- if (start_dqs_en - mid_min > IO_DQS_EN_DELAY_MAX)
- mid_min += start_dqs_en - mid_min - IO_DQS_EN_DELAY_MAX;
- else if (start_dqs_en - mid_min < 0)
- mid_min += start_dqs_en - mid_min;
- }
- new_dqs = start_dqs - mid_min;
+/**
+ * center_dq_windows() - Center the DQ/DQS windows
+ * @write: Perform read (Stage 2) or write (Stage 3) calibration
+ * @left_edge: Left edge of the DQ/DQS phase
+ * @right_edge: Right edge of the DQ/DQS phase
+ * @mid_min: Adjusted DQ/DQS phase middle setting
+ * @orig_mid_min: Original DQ/DQS phase middle setting
+ * @min_index: DQ/DQS phase middle setting index
+ * @test_bgn: Rank number to begin the test
+ * @dq_margin: Amount of shift for the DQ
+ * @dqs_margin: Amount of shift for the DQS
+ *
+ * Align the DQ/DQS windows in each group.
+ */
+static void center_dq_windows(const int write, int *left_edge, int *right_edge,
+ const int mid_min, const int orig_mid_min,
+ const int min_index, const int test_bgn,
+ int *dq_margin, int *dqs_margin)
+{
+ const u32 delay_max = write ? iocfg->io_out1_delay_max : iocfg->io_in_delay_max;
+ const u32 per_dqs = write ? rwcfg->mem_dq_per_write_dqs :
+ rwcfg->mem_dq_per_read_dqs;
+ const u32 delay_off = write ? SCC_MGR_IO_OUT1_DELAY_OFFSET :
+ SCC_MGR_IO_IN_DELAY_OFFSET;
+ const u32 addr = SDR_PHYGRP_SCCGRP_ADDRESS | delay_off;
- debug_cond(DLEVEL == 1, "vfifo_center: start_dqs=%d start_dqs_en=%d \
- new_dqs=%d mid_min=%d\n", start_dqs,
- IO_SHIFT_DQS_EN_WHEN_SHIFT_DQS ? start_dqs_en : -1,
- new_dqs, mid_min);
+ u32 temp_dq_io_delay1, temp_dq_io_delay2;
+ int shift_dq, i, p;
/* Initialize data for export structures */
- dqs_margin = IO_IO_IN_DELAY_MAX + 1;
- dq_margin = IO_IO_IN_DELAY_MAX + 1;
+ *dqs_margin = delay_max + 1;
+ *dq_margin = delay_max + 1;
/* add delay to bring centre of all DQ windows to the same "level" */
- for (i = 0, p = test_bgn; i < RW_MGR_MEM_DQ_PER_READ_DQS; i++, p++) {
+ for (i = 0, p = test_bgn; i < per_dqs; i++, p++) {
/* Use values before divide by 2 to reduce round off error */
shift_dq = (left_edge[i] - right_edge[i] -
(left_edge[min_index] - right_edge[min_index]))/2 +
(orig_mid_min - mid_min);
- debug_cond(DLEVEL == 2, "vfifo_center: before: \
- shift_dq[%u]=%d\n", i, shift_dq);
+ debug_cond(DLEVEL == 2,
+ "vfifo_center: before: shift_dq[%u]=%d\n",
+ i, shift_dq);
+
+ temp_dq_io_delay1 = readl(addr + (p << 2));
+ temp_dq_io_delay2 = readl(addr + (i << 2));
- addr = SDR_PHYGRP_SCCGRP_ADDRESS | SCC_MGR_IO_IN_DELAY_OFFSET;
- temp_dq_in_delay1 = readl(addr + (p << 2));
- temp_dq_in_delay2 = readl(addr + (i << 2));
+ if (shift_dq + temp_dq_io_delay1 > delay_max)
+ shift_dq = delay_max - temp_dq_io_delay2;
+ else if (shift_dq + temp_dq_io_delay1 < 0)
+ shift_dq = -temp_dq_io_delay1;
+
+ debug_cond(DLEVEL == 2,
+ "vfifo_center: after: shift_dq[%u]=%d\n",
+ i, shift_dq);
+
+ if (write)
+ scc_mgr_set_dq_out1_delay(i, temp_dq_io_delay1 + shift_dq);
+ else
+ scc_mgr_set_dq_in_delay(p, temp_dq_io_delay1 + shift_dq);
- if (shift_dq + (int32_t)temp_dq_in_delay1 >
- (int32_t)IO_IO_IN_DELAY_MAX) {
- shift_dq = (int32_t)IO_IO_IN_DELAY_MAX - temp_dq_in_delay2;
- } else if (shift_dq + (int32_t)temp_dq_in_delay1 < 0) {
- shift_dq = -(int32_t)temp_dq_in_delay1;
- }
- debug_cond(DLEVEL == 2, "vfifo_center: after: \
- shift_dq[%u]=%d\n", i, shift_dq);
- final_dq[i] = temp_dq_in_delay1 + shift_dq;
- scc_mgr_set_dq_in_delay(p, final_dq[i]);
scc_mgr_load_dq(p);
- debug_cond(DLEVEL == 2, "vfifo_center: margin[%u]=[%d,%d]\n", i,
+ debug_cond(DLEVEL == 2,
+ "vfifo_center: margin[%u]=[%d,%d]\n", i,
left_edge[i] - shift_dq + (-mid_min),
right_edge[i] + shift_dq - (-mid_min));
- /* To determine values for export structures */
- if (left_edge[i] - shift_dq + (-mid_min) < dq_margin)
- dq_margin = left_edge[i] - shift_dq + (-mid_min);
-
- if (right_edge[i] + shift_dq - (-mid_min) < dqs_margin)
- dqs_margin = right_edge[i] + shift_dq - (-mid_min);
- }
- final_dqs = new_dqs;
- if (IO_SHIFT_DQS_EN_WHEN_SHIFT_DQS)
- final_dqs_en = start_dqs_en - mid_min;
+ /* To determine values for export structures */
+ if (left_edge[i] - shift_dq + (-mid_min) < *dq_margin)
+ *dq_margin = left_edge[i] - shift_dq + (-mid_min);
- /* Move DQS-en */
- if (IO_SHIFT_DQS_EN_WHEN_SHIFT_DQS) {
- scc_mgr_set_dqs_en_delay(read_group, final_dqs_en);
- scc_mgr_load_dqs(read_group);
+ if (right_edge[i] + shift_dq - (-mid_min) < *dqs_margin)
+ *dqs_margin = right_edge[i] + shift_dq - (-mid_min);
}
- /* Move DQS */
- scc_mgr_set_dqs_bus_in_delay(read_group, final_dqs);
- scc_mgr_load_dqs(read_group);
- debug_cond(DLEVEL == 2, "%s:%d vfifo_center: dq_margin=%d \
- dqs_margin=%d", __func__, __LINE__,
- dq_margin, dqs_margin);
-
- /*
- * Do not remove this line as it makes sure all of our decisions
- * have been applied. Apply the update bit.
- */
- writel(0, &sdr_scc_mgr->update);
-
- return (dq_margin >= 0) && (dqs_margin >= 0);
-}
+}
/**
- * rw_mgr_mem_calibrate_vfifo() - Calibrate the read valid prediction FIFO
+ * rw_mgr_mem_calibrate_vfifo_center() - Per-bit deskew DQ and centering
+ * @rank_bgn: Rank number
* @rw_group: Read/Write Group
* @test_bgn: Rank at which the test begins
+ * @use_read_test: Perform a read test
+ * @update_fom: Update FOM
*
- * Stage 1: Calibrate the read valid prediction FIFO.
- *
- * This function implements UniPHY calibration Stage 1, as explained in
- * detail in Altera EMI_RM 2015.05.04 , "UniPHY Calibration Stages".
- *
- * - read valid prediction will consist of finding:
- * - DQS enable phase and DQS enable delay (DQS Enable Calibration)
- * - DQS input phase and DQS input delay (DQ/DQS Centering)
- * - we also do a per-bit deskew on the DQ lines.
+ * Per-bit deskew DQ and centering.
*/
-static uint32_t rw_mgr_mem_calibrate_vfifo(uint32_t read_group,
- uint32_t test_bgn)
+static int rw_mgr_mem_calibrate_vfifo_center(const u32 rank_bgn,
+ const u32 rw_group, const u32 test_bgn,
+ const int use_read_test, const int update_fom)
{
- uint32_t p, d, rank_bgn, sr;
- uint32_t dtaps_per_ptap;
- uint32_t bit_chk;
- uint32_t grp_calibrated;
- uint32_t write_group, write_test_bgn;
- uint32_t failed_substage;
-
- debug("%s:%d: %u %u\n", __func__, __LINE__, read_group, test_bgn);
+ const u32 addr =
+ SDR_PHYGRP_SCCGRP_ADDRESS + SCC_MGR_DQS_IN_DELAY_OFFSET +
+ (rw_group << 2);
+ /*
+ * Store these as signed since there are comparisons with
+ * signed numbers.
+ */
+ u32 sticky_bit_chk;
+ int32_t left_edge[rwcfg->mem_dq_per_read_dqs];
+ int32_t right_edge[rwcfg->mem_dq_per_read_dqs];
+ int32_t orig_mid_min, mid_min;
+ int32_t new_dqs, start_dqs, start_dqs_en = 0, final_dqs_en;
+ int32_t dq_margin, dqs_margin;
+ int i, min_index;
+ int ret;
- /* update info for sims */
- reg_file_set_stage(CAL_STAGE_VFIFO);
+ debug("%s:%d: %u %u", __func__, __LINE__, rw_group, test_bgn);
- write_group = read_group;
- write_test_bgn = test_bgn;
+ start_dqs = readl(addr);
+ if (iocfg->shift_dqs_en_when_shift_dqs)
+ start_dqs_en = readl(addr - iocfg->dqs_en_delay_offset);
- /* USER Determine number of delay taps for each phase tap */
- dtaps_per_ptap = DIV_ROUND_UP(IO_DELAY_PER_OPA_TAP,
- IO_DELAY_PER_DQS_EN_DCHAIN_TAP) - 1;
+ /* set the left and right edge of each bit to an illegal value */
+ /* use (iocfg->io_in_delay_max + 1) as an illegal value */
+ sticky_bit_chk = 0;
+ for (i = 0; i < rwcfg->mem_dq_per_read_dqs; i++) {
+ left_edge[i] = iocfg->io_in_delay_max + 1;
+ right_edge[i] = iocfg->io_in_delay_max + 1;
+ }
- /* update info for sims */
- reg_file_set_group(read_group);
+ /* Search for the left edge of the window for each bit */
+ search_left_edge(0, rank_bgn, rw_group, rw_group, test_bgn,
+ &sticky_bit_chk,
+ left_edge, right_edge, use_read_test);
- reg_file_set_sub_stage(CAL_SUBSTAGE_GUARANTEED_READ);
- failed_substage = CAL_SUBSTAGE_GUARANTEED_READ;
- for (d = 0; d <= dtaps_per_ptap; d += 2) {
+ /* Search for the right edge of the window for each bit */
+ ret = search_right_edge(0, rank_bgn, rw_group, rw_group,
+ start_dqs, start_dqs_en,
+ &sticky_bit_chk,
+ left_edge, right_edge, use_read_test);
+ if (ret) {
/*
- * In RLDRAMX we may be messing the delay of pins in
- * the same write group but outside of the current read
- * the group, but that's ok because we haven't calibrated
- * output side yet.
+ * Restore delay chain settings before letting the loop
+ * in rw_mgr_mem_calibrate_vfifo to retry different
+ * dqs/ck relationships.
*/
- if (d > 0) {
- scc_mgr_apply_group_all_out_delay_add_all_ranks(
- write_group, d);
- }
+ scc_mgr_set_dqs_bus_in_delay(rw_group, start_dqs);
+ if (iocfg->shift_dqs_en_when_shift_dqs)
+ scc_mgr_set_dqs_en_delay(rw_group, start_dqs_en);
- for (p = 0; p <= IO_DQDQS_OUT_PHASE_MAX; p++) {
- /* set a particular dqdqs phase */
- scc_mgr_set_dqdqs_output_phase_all_ranks(read_group, p);
+ scc_mgr_load_dqs(rw_group);
+ writel(0, &sdr_scc_mgr->update);
- debug_cond(DLEVEL == 1,
- "%s:%d calibrate_vfifo: g=%u p=%u d=%u\n",
- __func__, __LINE__, read_group, p, d);
+ debug_cond(DLEVEL == 1,
+ "%s:%d vfifo_center: failed to find edge [%u]: %d %d",
+ __func__, __LINE__, i, left_edge[i], right_edge[i]);
+ if (use_read_test) {
+ set_failing_group_stage(rw_group *
+ rwcfg->mem_dq_per_read_dqs + i,
+ CAL_STAGE_VFIFO,
+ CAL_SUBSTAGE_VFIFO_CENTER);
+ } else {
+ set_failing_group_stage(rw_group *
+ rwcfg->mem_dq_per_read_dqs + i,
+ CAL_STAGE_VFIFO_AFTER_WRITES,
+ CAL_SUBSTAGE_VFIFO_CENTER);
+ }
+ return -EIO;
+ }
- /*
- * Load up the patterns used by read calibration
- * using current DQDQS phase.
- */
- rw_mgr_mem_calibrate_read_load_patterns(0, 1);
- if (!(gbl->phy_debug_mode_flags & PHY_DEBUG_DISABLE_GUARANTEED_READ)) {
- if (!rw_mgr_mem_calibrate_read_test_patterns_all_ranks
- (read_group, 1, &bit_chk)) {
- debug_cond(DLEVEL == 1,
- "%s:%d Guaranteed read test failed: g=%u p=%u d=%u\n",
- __func__, __LINE__, read_group, p, d);
- break;
- }
- }
+ min_index = get_window_mid_index(0, left_edge, right_edge, &mid_min);
- /* case:56390 */
- if (!rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase_sweep_dq_in_delay
- (write_group, read_group, test_bgn)) {
- failed_substage = CAL_SUBSTAGE_DQS_EN_PHASE;
- continue;
- }
+ /* Determine the amount we can change DQS (which is -mid_min) */
+ orig_mid_min = mid_min;
+ new_dqs = start_dqs - mid_min;
+ if (new_dqs > iocfg->dqs_in_delay_max)
+ new_dqs = iocfg->dqs_in_delay_max;
+ else if (new_dqs < 0)
+ new_dqs = 0;
- /*
- * USER Read per-bit deskew can be done on a
- * per shadow register basis.
- */
- grp_calibrated = 1;
- for (rank_bgn = 0, sr = 0;
- rank_bgn < RW_MGR_MEM_NUMBER_OF_RANKS;
- rank_bgn += NUM_RANKS_PER_SHADOW_REG, sr++) {
- /*
- * Determine if this set of ranks
- * should be skipped entirely.
- */
- if (param->skip_shadow_regs[sr])
- continue;
- /*
- * If doing read after write
- * calibration, do not update
- * FOM, now - do it then.
- */
- if (rw_mgr_mem_calibrate_vfifo_center(rank_bgn,
- write_group, read_group,
- test_bgn, 1, 0))
+ mid_min = start_dqs - new_dqs;
+ debug_cond(DLEVEL == 1, "vfifo_center: new mid_min=%d new_dqs=%d\n",
+ mid_min, new_dqs);
- continue;
+ if (iocfg->shift_dqs_en_when_shift_dqs) {
+ if (start_dqs_en - mid_min > iocfg->dqs_en_delay_max)
+ mid_min += start_dqs_en - mid_min - iocfg->dqs_en_delay_max;
+ else if (start_dqs_en - mid_min < 0)
+ mid_min += start_dqs_en - mid_min;
+ }
+ new_dqs = start_dqs - mid_min;
- grp_calibrated = 0;
- failed_substage = CAL_SUBSTAGE_VFIFO_CENTER;
- }
+ debug_cond(DLEVEL == 1,
+ "vfifo_center: start_dqs=%d start_dqs_en=%d new_dqs=%d mid_min=%d\n",
+ start_dqs,
+ iocfg->shift_dqs_en_when_shift_dqs ? start_dqs_en : -1,
+ new_dqs, mid_min);
- if (grp_calibrated)
- goto cal_done_ok;
- }
+ /* Add delay to bring centre of all DQ windows to the same "level". */
+ center_dq_windows(0, left_edge, right_edge, mid_min, orig_mid_min,
+ min_index, test_bgn, &dq_margin, &dqs_margin);
+
+ /* Move DQS-en */
+ if (iocfg->shift_dqs_en_when_shift_dqs) {
+ final_dqs_en = start_dqs_en - mid_min;
+ scc_mgr_set_dqs_en_delay(rw_group, final_dqs_en);
+ scc_mgr_load_dqs(rw_group);
}
- /* Calibration Stage 1 failed. */
- set_failing_group_stage(write_group, CAL_STAGE_VFIFO, failed_substage);
- return 0;
+ /* Move DQS */
+ scc_mgr_set_dqs_bus_in_delay(rw_group, new_dqs);
+ scc_mgr_load_dqs(rw_group);
+ debug_cond(DLEVEL == 2,
+ "%s:%d vfifo_center: dq_margin=%d dqs_margin=%d",
+ __func__, __LINE__, dq_margin, dqs_margin);
- /* Calibration Stage 1 completed OK. */
-cal_done_ok:
/*
- * Reset the delay chains back to zero if they have moved > 1
- * (check for > 1 because loop will increase d even when pass in
- * first case).
+ * Do not remove this line as it makes sure all of our decisions
+ * have been applied. Apply the update bit.
*/
- if (d > 2)
- scc_mgr_zero_group(write_group, 1);
+ writel(0, &sdr_scc_mgr->update);
- return 1;
+ if ((dq_margin < 0) || (dqs_margin < 0))
+ return -EINVAL;
+
+ return 0;
}
-/* VFIFO Calibration -- Read Deskew Calibration after write deskew */
-static uint32_t rw_mgr_mem_calibrate_vfifo_end(uint32_t read_group,
- uint32_t test_bgn)
+/**
+ * rw_mgr_mem_calibrate_guaranteed_write() - Perform guaranteed write into the device
+ * @rw_group: Read/Write Group
+ * @phase: DQ/DQS phase
+ *
+ * Because initially no communication ca be reliably performed with the memory
+ * device, the sequencer uses a guaranteed write mechanism to write data into
+ * the memory device.
+ */
+static int rw_mgr_mem_calibrate_guaranteed_write(const u32 rw_group,
+ const u32 phase)
{
- uint32_t rank_bgn, sr;
- uint32_t grp_calibrated;
- uint32_t write_group;
-
- debug("%s:%d %u %u", __func__, __LINE__, read_group, test_bgn);
+ int ret;
- /* update info for sims */
+ /* Set a particular DQ/DQS phase. */
+ scc_mgr_set_dqdqs_output_phase_all_ranks(rw_group, phase);
- reg_file_set_stage(CAL_STAGE_VFIFO_AFTER_WRITES);
- reg_file_set_sub_stage(CAL_SUBSTAGE_VFIFO_CENTER);
-
- write_group = read_group;
-
- /* update info for sims */
- reg_file_set_group(read_group);
-
- grp_calibrated = 1;
- /* Read per-bit deskew can be done on a per shadow register basis */
- for (rank_bgn = 0, sr = 0; rank_bgn < RW_MGR_MEM_NUMBER_OF_RANKS;
- rank_bgn += NUM_RANKS_PER_SHADOW_REG, ++sr) {
- /* Determine if this set of ranks should be skipped entirely */
- if (!param->skip_shadow_regs[sr]) {
- /* This is the last calibration round, update FOM here */
- if (!rw_mgr_mem_calibrate_vfifo_center(rank_bgn,
- write_group,
- read_group,
- test_bgn, 0,
- 1)) {
- grp_calibrated = 0;
- }
- }
- }
+ debug_cond(DLEVEL == 1, "%s:%d guaranteed write: g=%u p=%u\n",
+ __func__, __LINE__, rw_group, phase);
+ /*
+ * Altera EMI_RM 2015.05.04 :: Figure 1-25
+ * Load up the patterns used by read calibration using the
+ * current DQDQS phase.
+ */
+ rw_mgr_mem_calibrate_read_load_patterns(0, 1);
- if (grp_calibrated == 0) {
- set_failing_group_stage(write_group,
- CAL_STAGE_VFIFO_AFTER_WRITES,
- CAL_SUBSTAGE_VFIFO_CENTER);
+ if (gbl->phy_debug_mode_flags & PHY_DEBUG_DISABLE_GUARANTEED_READ)
return 0;
- }
- return 1;
+ /*
+ * Altera EMI_RM 2015.05.04 :: Figure 1-26
+ * Back-to-Back reads of the patterns used for calibration.
+ */
+ ret = rw_mgr_mem_calibrate_read_test_patterns(0, rw_group, 1);
+ if (ret)
+ debug_cond(DLEVEL == 1,
+ "%s:%d Guaranteed read test failed: g=%u p=%u\n",
+ __func__, __LINE__, rw_group, phase);
+ return ret;
}
-/* Calibrate LFIFO to find smallest read latency */
-static uint32_t rw_mgr_mem_calibrate_lfifo(void)
+/**
+ * rw_mgr_mem_calibrate_dqs_enable_calibration() - DQS Enable Calibration
+ * @rw_group: Read/Write Group
+ * @test_bgn: Rank at which the test begins
+ *
+ * DQS enable calibration ensures reliable capture of the DQ signal without
+ * glitches on the DQS line.
+ */
+static int rw_mgr_mem_calibrate_dqs_enable_calibration(const u32 rw_group,
+ const u32 test_bgn)
{
- uint32_t found_one;
- uint32_t bit_chk;
-
- debug("%s:%d\n", __func__, __LINE__);
+ /*
+ * Altera EMI_RM 2015.05.04 :: Figure 1-27
+ * DQS and DQS Eanble Signal Relationships.
+ */
- /* update info for sims */
- reg_file_set_stage(CAL_STAGE_LFIFO);
- reg_file_set_sub_stage(CAL_SUBSTAGE_READ_LATENCY);
+ /* We start at zero, so have one less dq to devide among */
+ const u32 delay_step = iocfg->io_in_delay_max /
+ (rwcfg->mem_dq_per_read_dqs - 1);
+ int ret;
+ u32 i, p, d, r;
- /* Load up the patterns used by read calibration for all ranks */
- rw_mgr_mem_calibrate_read_load_patterns(0, 1);
- found_one = 0;
+ debug("%s:%d (%u,%u)\n", __func__, __LINE__, rw_group, test_bgn);
- do {
- writel(gbl->curr_read_lat, &phy_mgr_cfg->phy_rlat);
- debug_cond(DLEVEL == 2, "%s:%d lfifo: read_lat=%u",
- __func__, __LINE__, gbl->curr_read_lat);
+ /* Try different dq_in_delays since the DQ path is shorter than DQS. */
+ for (r = 0; r < rwcfg->mem_number_of_ranks;
+ r += NUM_RANKS_PER_SHADOW_REG) {
+ for (i = 0, p = test_bgn, d = 0;
+ i < rwcfg->mem_dq_per_read_dqs;
+ i++, p++, d += delay_step) {
+ debug_cond(DLEVEL == 1,
+ "%s:%d: g=%u r=%u i=%u p=%u d=%u\n",
+ __func__, __LINE__, rw_group, r, i, p, d);
- if (!rw_mgr_mem_calibrate_read_test_all_ranks(0,
- NUM_READ_TESTS,
- PASS_ALL_BITS,
- &bit_chk, 1)) {
- break;
+ scc_mgr_set_dq_in_delay(p, d);
+ scc_mgr_load_dq(p);
}
- found_one = 1;
- /* reduce read latency and see if things are working */
- /* correctly */
- gbl->curr_read_lat--;
- } while (gbl->curr_read_lat > 0);
-
- /* reset the fifos to get pointers to known state */
+ writel(0, &sdr_scc_mgr->update);
+ }
- writel(0, &phy_mgr_cmd->fifo_reset);
+ /*
+ * Try rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase across different
+ * dq_in_delay values
+ */
+ ret = rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase(rw_group);
- if (found_one) {
- /* add a fudge factor to the read latency that was determined */
- gbl->curr_read_lat += 2;
- writel(gbl->curr_read_lat, &phy_mgr_cfg->phy_rlat);
- debug_cond(DLEVEL == 2, "%s:%d lfifo: success: using \
- read_lat=%u\n", __func__, __LINE__,
- gbl->curr_read_lat);
- return 1;
- } else {
- set_failing_group_stage(0xff, CAL_STAGE_LFIFO,
- CAL_SUBSTAGE_READ_LATENCY);
+ debug_cond(DLEVEL == 1,
+ "%s:%d: g=%u found=%u; Reseting delay chain to zero\n",
+ __func__, __LINE__, rw_group, !ret);
- debug_cond(DLEVEL == 2, "%s:%d lfifo: failed at initial \
- read_lat=%u\n", __func__, __LINE__,
- gbl->curr_read_lat);
- return 0;
+ for (r = 0; r < rwcfg->mem_number_of_ranks;
+ r += NUM_RANKS_PER_SHADOW_REG) {
+ scc_mgr_apply_group_dq_in_delay(test_bgn, 0);
+ writel(0, &sdr_scc_mgr->update);
}
+
+ return ret;
}
-/*
- * issue write test command.
- * two variants are provided. one that just tests a write pattern and
- * another that tests datamask functionality.
+/**
+ * rw_mgr_mem_calibrate_dq_dqs_centering() - Centering DQ/DQS
+ * @rw_group: Read/Write Group
+ * @test_bgn: Rank at which the test begins
+ * @use_read_test: Perform a read test
+ * @update_fom: Update FOM
+ *
+ * The centerin DQ/DQS stage attempts to align DQ and DQS signals on reads
+ * within a group.
*/
-static void rw_mgr_mem_calibrate_write_test_issue(uint32_t group,
- uint32_t test_dm)
+static int
+rw_mgr_mem_calibrate_dq_dqs_centering(const u32 rw_group, const u32 test_bgn,
+ const int use_read_test,
+ const int update_fom)
+
{
- uint32_t mcc_instruction;
- uint32_t quick_write_mode = (((STATIC_CALIB_STEPS) & CALIB_SKIP_WRITES) &&
- ENABLE_SUPER_QUICK_CALIBRATION);
- uint32_t rw_wl_nop_cycles;
- uint32_t addr;
+ int ret, grp_calibrated;
+ u32 rank_bgn, sr;
/*
- * Set counter and jump addresses for the right
- * number of NOP cycles.
- * The number of supported NOP cycles can range from -1 to infinity
- * Three different cases are handled:
- *
- * 1. For a number of NOP cycles greater than 0, the RW Mgr looping
- * mechanism will be used to insert the right number of NOPs
- *
- * 2. For a number of NOP cycles equals to 0, the micro-instruction
- * issuing the write command will jump straight to the
- * micro-instruction that turns on DQS (for DDRx), or outputs write
- * data (for RLD), skipping
- * the NOP micro-instruction all together
- *
- * 3. A number of NOP cycles equal to -1 indicates that DQS must be
- * turned on in the same micro-instruction that issues the write
- * command. Then we need
- * to directly jump to the micro-instruction that sends out the data
- *
- * NOTE: Implementing this mechanism uses 2 RW Mgr jump-counters
- * (2 and 3). One jump-counter (0) is used to perform multiple
- * write-read operations.
- * one counter left to issue this command in "multiple-group" mode
+ * Altera EMI_RM 2015.05.04 :: Figure 1-28
+ * Read per-bit deskew can be done on a per shadow register basis.
*/
+ grp_calibrated = 1;
+ for (rank_bgn = 0, sr = 0;
+ rank_bgn < rwcfg->mem_number_of_ranks;
+ rank_bgn += NUM_RANKS_PER_SHADOW_REG, sr++) {
+ ret = rw_mgr_mem_calibrate_vfifo_center(rank_bgn, rw_group,
+ test_bgn,
+ use_read_test,
+ update_fom);
+ if (!ret)
+ continue;
- rw_wl_nop_cycles = gbl->rw_wl_nop_cycles;
-
- if (rw_wl_nop_cycles == -1) {
- /*
- * CNTR 2 - We want to execute the special write operation that
- * turns on DQS right away and then skip directly to the
- * instruction that sends out the data. We set the counter to a
- * large number so that the jump is always taken.
- */
- writel(0xFF, &sdr_rw_load_mgr_regs->load_cntr2);
-
- /* CNTR 3 - Not used */
- if (test_dm) {
- mcc_instruction = RW_MGR_LFSR_WR_RD_DM_BANK_0_WL_1;
- writel(RW_MGR_LFSR_WR_RD_DM_BANK_0_DATA,
- &sdr_rw_load_jump_mgr_regs->load_jump_add2);
- writel(RW_MGR_LFSR_WR_RD_DM_BANK_0_NOP,
- &sdr_rw_load_jump_mgr_regs->load_jump_add3);
- } else {
- mcc_instruction = RW_MGR_LFSR_WR_RD_BANK_0_WL_1;
- writel(RW_MGR_LFSR_WR_RD_BANK_0_DATA,
- &sdr_rw_load_jump_mgr_regs->load_jump_add2);
- writel(RW_MGR_LFSR_WR_RD_BANK_0_NOP,
- &sdr_rw_load_jump_mgr_regs->load_jump_add3);
- }
- } else if (rw_wl_nop_cycles == 0) {
- /*
- * CNTR 2 - We want to skip the NOP operation and go straight
- * to the DQS enable instruction. We set the counter to a large
- * number so that the jump is always taken.
- */
- writel(0xFF, &sdr_rw_load_mgr_regs->load_cntr2);
-
- /* CNTR 3 - Not used */
- if (test_dm) {
- mcc_instruction = RW_MGR_LFSR_WR_RD_DM_BANK_0;
- writel(RW_MGR_LFSR_WR_RD_DM_BANK_0_DQS,
- &sdr_rw_load_jump_mgr_regs->load_jump_add2);
- } else {
- mcc_instruction = RW_MGR_LFSR_WR_RD_BANK_0;
- writel(RW_MGR_LFSR_WR_RD_BANK_0_DQS,
- &sdr_rw_load_jump_mgr_regs->load_jump_add2);
- }
- } else {
- /*
- * CNTR 2 - In this case we want to execute the next instruction
- * and NOT take the jump. So we set the counter to 0. The jump
- * address doesn't count.
- */
- writel(0x0, &sdr_rw_load_mgr_regs->load_cntr2);
- writel(0x0, &sdr_rw_load_jump_mgr_regs->load_jump_add2);
-
- /*
- * CNTR 3 - Set the nop counter to the number of cycles we
- * need to loop for, minus 1.
- */
- writel(rw_wl_nop_cycles - 1, &sdr_rw_load_mgr_regs->load_cntr3);
- if (test_dm) {
- mcc_instruction = RW_MGR_LFSR_WR_RD_DM_BANK_0;
- writel(RW_MGR_LFSR_WR_RD_DM_BANK_0_NOP,
- &sdr_rw_load_jump_mgr_regs->load_jump_add3);
- } else {
- mcc_instruction = RW_MGR_LFSR_WR_RD_BANK_0;
- writel(RW_MGR_LFSR_WR_RD_BANK_0_NOP,
- &sdr_rw_load_jump_mgr_regs->load_jump_add3);
- }
+ grp_calibrated = 0;
}
- writel(0, SDR_PHYGRP_RWMGRGRP_ADDRESS |
- RW_MGR_RESET_READ_DATAPATH_OFFSET);
+ if (!grp_calibrated)
+ return -EIO;
- if (quick_write_mode)
- writel(0x08, &sdr_rw_load_mgr_regs->load_cntr0);
- else
- writel(0x40, &sdr_rw_load_mgr_regs->load_cntr0);
+ return 0;
+}
- writel(mcc_instruction, &sdr_rw_load_jump_mgr_regs->load_jump_add0);
+/**
+ * rw_mgr_mem_calibrate_vfifo() - Calibrate the read valid prediction FIFO
+ * @rw_group: Read/Write Group
+ * @test_bgn: Rank at which the test begins
+ *
+ * Stage 1: Calibrate the read valid prediction FIFO.
+ *
+ * This function implements UniPHY calibration Stage 1, as explained in
+ * detail in Altera EMI_RM 2015.05.04 , "UniPHY Calibration Stages".
+ *
+ * - read valid prediction will consist of finding:
+ * - DQS enable phase and DQS enable delay (DQS Enable Calibration)
+ * - DQS input phase and DQS input delay (DQ/DQS Centering)
+ * - we also do a per-bit deskew on the DQ lines.
+ */
+static int rw_mgr_mem_calibrate_vfifo(const u32 rw_group, const u32 test_bgn)
+{
+ u32 p, d;
+ u32 dtaps_per_ptap;
+ u32 failed_substage;
- /*
- * CNTR 1 - This is used to ensure enough time elapses
- * for read data to come back.
- */
- writel(0x30, &sdr_rw_load_mgr_regs->load_cntr1);
+ int ret;
- if (test_dm) {
- writel(RW_MGR_LFSR_WR_RD_DM_BANK_0_WAIT,
- &sdr_rw_load_jump_mgr_regs->load_jump_add1);
- } else {
- writel(RW_MGR_LFSR_WR_RD_BANK_0_WAIT,
- &sdr_rw_load_jump_mgr_regs->load_jump_add1);
- }
+ debug("%s:%d: %u %u\n", __func__, __LINE__, rw_group, test_bgn);
- addr = SDR_PHYGRP_RWMGRGRP_ADDRESS | RW_MGR_RUN_SINGLE_GROUP_OFFSET;
- writel(mcc_instruction, addr + (group << 2));
-}
+ /* Update info for sims */
+ reg_file_set_group(rw_group);
+ reg_file_set_stage(CAL_STAGE_VFIFO);
+ reg_file_set_sub_stage(CAL_SUBSTAGE_GUARANTEED_READ);
-/* Test writes, can check for a single bit pass or multiple bit pass */
-static uint32_t rw_mgr_mem_calibrate_write_test(uint32_t rank_bgn,
- uint32_t write_group, uint32_t use_dm, uint32_t all_correct,
- uint32_t *bit_chk, uint32_t all_ranks)
-{
- uint32_t r;
- uint32_t correct_mask_vg;
- uint32_t tmp_bit_chk;
- uint32_t vg;
- uint32_t rank_end = all_ranks ? RW_MGR_MEM_NUMBER_OF_RANKS :
- (rank_bgn + NUM_RANKS_PER_SHADOW_REG);
- uint32_t addr_rw_mgr;
- uint32_t base_rw_mgr;
+ failed_substage = CAL_SUBSTAGE_GUARANTEED_READ;
- *bit_chk = param->write_correct_mask;
- correct_mask_vg = param->write_correct_mask_vg;
+ /* USER Determine number of delay taps for each phase tap. */
+ dtaps_per_ptap = DIV_ROUND_UP(iocfg->delay_per_opa_tap,
+ iocfg->delay_per_dqs_en_dchain_tap) - 1;
- for (r = rank_bgn; r < rank_end; r++) {
- if (param->skip_ranks[r]) {
- /* request to skip the rank */
- continue;
+ for (d = 0; d <= dtaps_per_ptap; d += 2) {
+ /*
+ * In RLDRAMX we may be messing the delay of pins in
+ * the same write rw_group but outside of the current read
+ * the rw_group, but that's ok because we haven't calibrated
+ * output side yet.
+ */
+ if (d > 0) {
+ scc_mgr_apply_group_all_out_delay_add_all_ranks(
+ rw_group, d);
}
- /* set rank */
- set_rank_and_odt_mask(r, RW_MGR_ODT_MODE_READ_WRITE);
+ for (p = 0; p <= iocfg->dqdqs_out_phase_max; p++) {
+ /* 1) Guaranteed Write */
+ ret = rw_mgr_mem_calibrate_guaranteed_write(rw_group, p);
+ if (ret)
+ break;
- tmp_bit_chk = 0;
- addr_rw_mgr = SDR_PHYGRP_RWMGRGRP_ADDRESS;
- for (vg = RW_MGR_MEM_VIRTUAL_GROUPS_PER_WRITE_DQS-1; ; vg--) {
- /* reset the fifos to get pointers to known state */
- writel(0, &phy_mgr_cmd->fifo_reset);
+ /* 2) DQS Enable Calibration */
+ ret = rw_mgr_mem_calibrate_dqs_enable_calibration(rw_group,
+ test_bgn);
+ if (ret) {
+ failed_substage = CAL_SUBSTAGE_DQS_EN_PHASE;
+ continue;
+ }
- tmp_bit_chk = tmp_bit_chk <<
- (RW_MGR_MEM_DQ_PER_WRITE_DQS /
- RW_MGR_MEM_VIRTUAL_GROUPS_PER_WRITE_DQS);
- rw_mgr_mem_calibrate_write_test_issue(write_group *
- RW_MGR_MEM_VIRTUAL_GROUPS_PER_WRITE_DQS+vg,
- use_dm);
+ /* 3) Centering DQ/DQS */
+ /*
+ * If doing read after write calibration, do not update
+ * FOM now. Do it then.
+ */
+ ret = rw_mgr_mem_calibrate_dq_dqs_centering(rw_group,
+ test_bgn, 1, 0);
+ if (ret) {
+ failed_substage = CAL_SUBSTAGE_VFIFO_CENTER;
+ continue;
+ }
- base_rw_mgr = readl(addr_rw_mgr);
- tmp_bit_chk = tmp_bit_chk | (correct_mask_vg & ~(base_rw_mgr));
- if (vg == 0)
- break;
+ /* All done. */
+ goto cal_done_ok;
}
- *bit_chk &= tmp_bit_chk;
}
- if (all_correct) {
- set_rank_and_odt_mask(0, RW_MGR_ODT_MODE_OFF);
- debug_cond(DLEVEL == 2, "write_test(%u,%u,ALL) : %u == \
- %u => %lu", write_group, use_dm,
- *bit_chk, param->write_correct_mask,
- (long unsigned int)(*bit_chk ==
- param->write_correct_mask));
- return *bit_chk == param->write_correct_mask;
- } else {
- set_rank_and_odt_mask(0, RW_MGR_ODT_MODE_OFF);
- debug_cond(DLEVEL == 2, "write_test(%u,%u,ONE) : %u != ",
- write_group, use_dm, *bit_chk);
- debug_cond(DLEVEL == 2, "%lu" " => %lu", (long unsigned int)0,
- (long unsigned int)(*bit_chk != 0));
- return *bit_chk != 0x00;
- }
+ /* Calibration Stage 1 failed. */
+ set_failing_group_stage(rw_group, CAL_STAGE_VFIFO, failed_substage);
+ return 0;
+
+ /* Calibration Stage 1 completed OK. */
+cal_done_ok:
+ /*
+ * Reset the delay chains back to zero if they have moved > 1
+ * (check for > 1 because loop will increase d even when pass in
+ * first case).
+ */
+ if (d > 2)
+ scc_mgr_zero_group(rw_group, 1);
+
+ return 1;
}
-/*
- * center all windows. do per-bit-deskew to possibly increase size of
- * certain windows.
+/**
+ * rw_mgr_mem_calibrate_vfifo_end() - DQ/DQS Centering.
+ * @rw_group: Read/Write Group
+ * @test_bgn: Rank at which the test begins
+ *
+ * Stage 3: DQ/DQS Centering.
+ *
+ * This function implements UniPHY calibration Stage 3, as explained in
+ * detail in Altera EMI_RM 2015.05.04 , "UniPHY Calibration Stages".
*/
-static uint32_t rw_mgr_mem_calibrate_writes_center(uint32_t rank_bgn,
- uint32_t write_group, uint32_t test_bgn)
+static int rw_mgr_mem_calibrate_vfifo_end(const u32 rw_group,
+ const u32 test_bgn)
{
- uint32_t i, p, min_index;
- int32_t d;
- /*
- * Store these as signed since there are comparisons with
- * signed numbers.
- */
- uint32_t bit_chk;
- uint32_t sticky_bit_chk;
- int32_t left_edge[RW_MGR_MEM_DQ_PER_WRITE_DQS];
- int32_t right_edge[RW_MGR_MEM_DQ_PER_WRITE_DQS];
- int32_t mid;
- int32_t mid_min, orig_mid_min;
- int32_t new_dqs, start_dqs, shift_dq;
- int32_t dq_margin, dqs_margin, dm_margin;
- uint32_t stop;
- uint32_t temp_dq_out1_delay;
- uint32_t addr;
+ int ret;
- debug("%s:%d %u %u", __func__, __LINE__, write_group, test_bgn);
+ debug("%s:%d %u %u", __func__, __LINE__, rw_group, test_bgn);
- dm_margin = 0;
+ /* Update info for sims. */
+ reg_file_set_group(rw_group);
+ reg_file_set_stage(CAL_STAGE_VFIFO_AFTER_WRITES);
+ reg_file_set_sub_stage(CAL_SUBSTAGE_VFIFO_CENTER);
- addr = SDR_PHYGRP_SCCGRP_ADDRESS | SCC_MGR_IO_OUT1_DELAY_OFFSET;
- start_dqs = readl(addr +
- (RW_MGR_MEM_DQ_PER_WRITE_DQS << 2));
+ ret = rw_mgr_mem_calibrate_dq_dqs_centering(rw_group, test_bgn, 0, 1);
+ if (ret)
+ set_failing_group_stage(rw_group,
+ CAL_STAGE_VFIFO_AFTER_WRITES,
+ CAL_SUBSTAGE_VFIFO_CENTER);
+ return ret;
+}
- /* per-bit deskew */
+/**
+ * rw_mgr_mem_calibrate_lfifo() - Minimize latency
+ *
+ * Stage 4: Minimize latency.
+ *
+ * This function implements UniPHY calibration Stage 4, as explained in
+ * detail in Altera EMI_RM 2015.05.04 , "UniPHY Calibration Stages".
+ * Calibrate LFIFO to find smallest read latency.
+ */
+static u32 rw_mgr_mem_calibrate_lfifo(void)
+{
+ int found_one = 0;
- /*
- * set the left and right edge of each bit to an illegal value
- * use (IO_IO_OUT1_DELAY_MAX + 1) as an illegal value.
- */
- sticky_bit_chk = 0;
- for (i = 0; i < RW_MGR_MEM_DQ_PER_WRITE_DQS; i++) {
- left_edge[i] = IO_IO_OUT1_DELAY_MAX + 1;
- right_edge[i] = IO_IO_OUT1_DELAY_MAX + 1;
- }
+ debug("%s:%d\n", __func__, __LINE__);
- /* Search for the left edge of the window for each bit */
- for (d = 0; d <= IO_IO_OUT1_DELAY_MAX; d++) {
- scc_mgr_apply_group_dq_out1_delay(write_group, d);
+ /* Update info for sims. */
+ reg_file_set_stage(CAL_STAGE_LFIFO);
+ reg_file_set_sub_stage(CAL_SUBSTAGE_READ_LATENCY);
- writel(0, &sdr_scc_mgr->update);
+ /* Load up the patterns used by read calibration for all ranks */
+ rw_mgr_mem_calibrate_read_load_patterns(0, 1);
- /*
- * Stop searching when the read test doesn't pass AND when
- * we've seen a passing read on every bit.
- */
- stop = !rw_mgr_mem_calibrate_write_test(rank_bgn, write_group,
- 0, PASS_ONE_BIT, &bit_chk, 0);
- sticky_bit_chk = sticky_bit_chk | bit_chk;
- stop = stop && (sticky_bit_chk == param->write_correct_mask);
- debug_cond(DLEVEL == 2, "write_center(left): dtap=%d => %u \
- == %u && %u [bit_chk= %u ]\n",
- d, sticky_bit_chk, param->write_correct_mask,
- stop, bit_chk);
+ do {
+ writel(gbl->curr_read_lat, &phy_mgr_cfg->phy_rlat);
+ debug_cond(DLEVEL == 2, "%s:%d lfifo: read_lat=%u",
+ __func__, __LINE__, gbl->curr_read_lat);
- if (stop == 1) {
+ if (!rw_mgr_mem_calibrate_read_test_all_ranks(0, NUM_READ_TESTS,
+ PASS_ALL_BITS, 1))
break;
- } else {
- for (i = 0; i < RW_MGR_MEM_DQ_PER_WRITE_DQS; i++) {
- if (bit_chk & 1) {
- /*
- * Remember a passing test as the
- * left_edge.
- */
- left_edge[i] = d;
- } else {
- /*
- * If a left edge has not been seen
- * yet, then a future passing test will
- * mark this edge as the right edge.
- */
- if (left_edge[i] ==
- IO_IO_OUT1_DELAY_MAX + 1) {
- right_edge[i] = -(d + 1);
- }
- }
- debug_cond(DLEVEL == 2, "write_center[l,d=%d):", d);
- debug_cond(DLEVEL == 2, "bit_chk_test=%d left_edge[%u]: %d",
- (int)(bit_chk & 1), i, left_edge[i]);
- debug_cond(DLEVEL == 2, "right_edge[%u]: %d\n", i,
- right_edge[i]);
- bit_chk = bit_chk >> 1;
- }
- }
- }
-
- /* Reset DQ delay chains to 0 */
- scc_mgr_apply_group_dq_out1_delay(0);
- sticky_bit_chk = 0;
- for (i = RW_MGR_MEM_DQ_PER_WRITE_DQS - 1;; i--) {
- debug_cond(DLEVEL == 2, "%s:%d write_center: left_edge[%u]: \
- %d right_edge[%u]: %d\n", __func__, __LINE__,
- i, left_edge[i], i, right_edge[i]);
+ found_one = 1;
/*
- * Check for cases where we haven't found the left edge,
- * which makes our assignment of the the right edge invalid.
- * Reset it to the illegal value.
+ * Reduce read latency and see if things are
+ * working correctly.
*/
- if ((left_edge[i] == IO_IO_OUT1_DELAY_MAX + 1) &&
- (right_edge[i] != IO_IO_OUT1_DELAY_MAX + 1)) {
- right_edge[i] = IO_IO_OUT1_DELAY_MAX + 1;
- debug_cond(DLEVEL == 2, "%s:%d write_center: reset \
- right_edge[%u]: %d\n", __func__, __LINE__,
- i, right_edge[i]);
- }
+ gbl->curr_read_lat--;
+ } while (gbl->curr_read_lat > 0);
- /*
- * Reset sticky bit (except for bits where we have
- * seen the left edge).
- */
- sticky_bit_chk = sticky_bit_chk << 1;
- if ((left_edge[i] != IO_IO_OUT1_DELAY_MAX + 1))
- sticky_bit_chk = sticky_bit_chk | 1;
+ /* Reset the fifos to get pointers to known state. */
+ writel(0, &phy_mgr_cmd->fifo_reset);
- if (i == 0)
- break;
+ if (found_one) {
+ /* Add a fudge factor to the read latency that was determined */
+ gbl->curr_read_lat += 2;
+ writel(gbl->curr_read_lat, &phy_mgr_cfg->phy_rlat);
+ debug_cond(DLEVEL == 2,
+ "%s:%d lfifo: success: using read_lat=%u\n",
+ __func__, __LINE__, gbl->curr_read_lat);
+ } else {
+ set_failing_group_stage(0xff, CAL_STAGE_LFIFO,
+ CAL_SUBSTAGE_READ_LATENCY);
+
+ debug_cond(DLEVEL == 2,
+ "%s:%d lfifo: failed at initial read_lat=%u\n",
+ __func__, __LINE__, gbl->curr_read_lat);
}
- /* Search for the right edge of the window for each bit */
- for (d = 0; d <= IO_IO_OUT1_DELAY_MAX - start_dqs; d++) {
- scc_mgr_apply_group_dqs_io_and_oct_out1(write_group,
- d + start_dqs);
+ return found_one;
+}
- writel(0, &sdr_scc_mgr->update);
+/**
+ * search_window() - Search for the/part of the window with DM/DQS shift
+ * @search_dm: If 1, search for the DM shift, if 0, search for DQS shift
+ * @rank_bgn: Rank number
+ * @write_group: Write Group
+ * @bgn_curr: Current window begin
+ * @end_curr: Current window end
+ * @bgn_best: Current best window begin
+ * @end_best: Current best window end
+ * @win_best: Size of the best window
+ * @new_dqs: New DQS value (only applicable if search_dm = 0).
+ *
+ * Search for the/part of the window with DM/DQS shift.
+ */
+static void search_window(const int search_dm,
+ const u32 rank_bgn, const u32 write_group,
+ int *bgn_curr, int *end_curr, int *bgn_best,
+ int *end_best, int *win_best, int new_dqs)
+{
+ u32 bit_chk;
+ const int max = iocfg->io_out1_delay_max - new_dqs;
+ int d, di;
+
+ /* Search for the/part of the window with DM/DQS shift. */
+ for (di = max; di >= 0; di -= DELTA_D) {
+ if (search_dm) {
+ d = di;
+ scc_mgr_apply_group_dm_out1_delay(d);
+ } else {
+ /* For DQS, we go from 0...max */
+ d = max - di;
+ /*
+ * Note: This only shifts DQS, so are we limiting ourselve to
+ * width of DQ unnecessarily.
+ */
+ scc_mgr_apply_group_dqs_io_and_oct_out1(write_group,
+ d + new_dqs);
+ }
- /*
- * Stop searching when the read test doesn't pass AND when
- * we've seen a passing read on every bit.
- */
- stop = !rw_mgr_mem_calibrate_write_test(rank_bgn, write_group,
- 0, PASS_ONE_BIT, &bit_chk, 0);
+ writel(0, &sdr_scc_mgr->update);
- sticky_bit_chk = sticky_bit_chk | bit_chk;
- stop = stop && (sticky_bit_chk == param->write_correct_mask);
+ if (rw_mgr_mem_calibrate_write_test(rank_bgn, write_group, 1,
+ PASS_ALL_BITS, &bit_chk,
+ 0)) {
+ /* Set current end of the window. */
+ *end_curr = search_dm ? -d : d;
- debug_cond(DLEVEL == 2, "write_center (right): dtap=%u => %u == \
- %u && %u\n", d, sticky_bit_chk,
- param->write_correct_mask, stop);
+ /*
+ * If a starting edge of our window has not been seen
+ * this is our current start of the DM window.
+ */
+ if (*bgn_curr == iocfg->io_out1_delay_max + 1)
+ *bgn_curr = search_dm ? -d : d;
- if (stop == 1) {
- if (d == 0) {
- for (i = 0; i < RW_MGR_MEM_DQ_PER_WRITE_DQS;
- i++) {
- /* d = 0 failed, but it passed when
- testing the left edge, so it must be
- marginal, set it to -1 */
- if (right_edge[i] ==
- IO_IO_OUT1_DELAY_MAX + 1 &&
- left_edge[i] !=
- IO_IO_OUT1_DELAY_MAX + 1) {
- right_edge[i] = -1;
- }
- }
+ /*
+ * If current window is bigger than best seen.
+ * Set best seen to be current window.
+ */
+ if ((*end_curr - *bgn_curr + 1) > *win_best) {
+ *win_best = *end_curr - *bgn_curr + 1;
+ *bgn_best = *bgn_curr;
+ *end_best = *end_curr;
}
- break;
} else {
- for (i = 0; i < RW_MGR_MEM_DQ_PER_WRITE_DQS; i++) {
- if (bit_chk & 1) {
- /*
- * Remember a passing test as
- * the right_edge.
- */
- right_edge[i] = d;
- } else {
- if (d != 0) {
- /*
- * If a right edge has not
- * been seen yet, then a future
- * passing test will mark this
- * edge as the left edge.
- */
- if (right_edge[i] ==
- IO_IO_OUT1_DELAY_MAX + 1)
- left_edge[i] = -(d + 1);
- } else {
- /*
- * d = 0 failed, but it passed
- * when testing the left edge,
- * so it must be marginal, set
- * it to -1.
- */
- if (right_edge[i] ==
- IO_IO_OUT1_DELAY_MAX + 1 &&
- left_edge[i] !=
- IO_IO_OUT1_DELAY_MAX + 1)
- right_edge[i] = -1;
- /*
- * If a right edge has not been
- * seen yet, then a future
- * passing test will mark this
- * edge as the left edge.
- */
- else if (right_edge[i] ==
- IO_IO_OUT1_DELAY_MAX +
- 1)
- left_edge[i] = -(d + 1);
- }
- }
- debug_cond(DLEVEL == 2, "write_center[r,d=%d):", d);
- debug_cond(DLEVEL == 2, "bit_chk_test=%d left_edge[%u]: %d",
- (int)(bit_chk & 1), i, left_edge[i]);
- debug_cond(DLEVEL == 2, "right_edge[%u]: %d\n", i,
- right_edge[i]);
- bit_chk = bit_chk >> 1;
- }
- }
- }
+ /* We just saw a failing test. Reset temp edge. */
+ *bgn_curr = iocfg->io_out1_delay_max + 1;
+ *end_curr = iocfg->io_out1_delay_max + 1;
- /* Check that all bits have a window */
- for (i = 0; i < RW_MGR_MEM_DQ_PER_WRITE_DQS; i++) {
- debug_cond(DLEVEL == 2, "%s:%d write_center: left_edge[%u]: \
- %d right_edge[%u]: %d", __func__, __LINE__,
- i, left_edge[i], i, right_edge[i]);
- if ((left_edge[i] == IO_IO_OUT1_DELAY_MAX + 1) ||
- (right_edge[i] == IO_IO_OUT1_DELAY_MAX + 1)) {
- set_failing_group_stage(test_bgn + i,
- CAL_STAGE_WRITES,
- CAL_SUBSTAGE_WRITES_CENTER);
- return 0;
- }
- }
+ /* Early exit is only applicable to DQS. */
+ if (search_dm)
+ continue;
- /* Find middle of window for each DQ bit */
- mid_min = left_edge[0] - right_edge[0];
- min_index = 0;
- for (i = 1; i < RW_MGR_MEM_DQ_PER_WRITE_DQS; i++) {
- mid = left_edge[i] - right_edge[i];
- if (mid < mid_min) {
- mid_min = mid;
- min_index = i;
+ /*
+ * Early exit optimization: if the remaining delay
+ * chain space is less than already seen largest
+ * window we can exit.
+ */
+ if (*win_best - 1 > iocfg->io_out1_delay_max - new_dqs - d)
+ break;
}
}
+}
+
+/*
+ * rw_mgr_mem_calibrate_writes_center() - Center all windows
+ * @rank_bgn: Rank number
+ * @write_group: Write group
+ * @test_bgn: Rank at which the test begins
+ *
+ * Center all windows. Do per-bit-deskew to possibly increase size of
+ * certain windows.
+ */
+static int
+rw_mgr_mem_calibrate_writes_center(const u32 rank_bgn, const u32 write_group,
+ const u32 test_bgn)
+{
+ int i;
+ u32 sticky_bit_chk;
+ u32 min_index;
+ int left_edge[rwcfg->mem_dq_per_write_dqs];
+ int right_edge[rwcfg->mem_dq_per_write_dqs];
+ int mid;
+ int mid_min, orig_mid_min;
+ int new_dqs, start_dqs;
+ int dq_margin, dqs_margin, dm_margin;
+ int bgn_curr = iocfg->io_out1_delay_max + 1;
+ int end_curr = iocfg->io_out1_delay_max + 1;
+ int bgn_best = iocfg->io_out1_delay_max + 1;
+ int end_best = iocfg->io_out1_delay_max + 1;
+ int win_best = 0;
+
+ int ret;
+
+ debug("%s:%d %u %u", __func__, __LINE__, write_group, test_bgn);
+
+ dm_margin = 0;
+
+ start_dqs = readl((SDR_PHYGRP_SCCGRP_ADDRESS |
+ SCC_MGR_IO_OUT1_DELAY_OFFSET) +
+ (rwcfg->mem_dq_per_write_dqs << 2));
+
+ /* Per-bit deskew. */
/*
- * -mid_min/2 represents the amount that we need to move DQS.
- * If mid_min is odd and positive we'll need to add one to
- * make sure the rounding in further calculations is correct
- * (always bias to the right), so just add 1 for all positive values.
+ * Set the left and right edge of each bit to an illegal value.
+ * Use (iocfg->io_out1_delay_max + 1) as an illegal value.
*/
- if (mid_min > 0)
- mid_min++;
- mid_min = mid_min / 2;
- debug_cond(DLEVEL == 1, "%s:%d write_center: mid_min=%d\n", __func__,
- __LINE__, mid_min);
+ sticky_bit_chk = 0;
+ for (i = 0; i < rwcfg->mem_dq_per_write_dqs; i++) {
+ left_edge[i] = iocfg->io_out1_delay_max + 1;
+ right_edge[i] = iocfg->io_out1_delay_max + 1;
+ }
+
+ /* Search for the left edge of the window for each bit. */
+ search_left_edge(1, rank_bgn, write_group, 0, test_bgn,
+ &sticky_bit_chk,
+ left_edge, right_edge, 0);
+
+ /* Search for the right edge of the window for each bit. */
+ ret = search_right_edge(1, rank_bgn, write_group, 0,
+ start_dqs, 0,
+ &sticky_bit_chk,
+ left_edge, right_edge, 0);
+ if (ret) {
+ set_failing_group_stage(test_bgn + ret - 1, CAL_STAGE_WRITES,
+ CAL_SUBSTAGE_WRITES_CENTER);
+ return -EINVAL;
+ }
- /* Determine the amount we can change DQS (which is -mid_min) */
+ min_index = get_window_mid_index(1, left_edge, right_edge, &mid_min);
+
+ /* Determine the amount we can change DQS (which is -mid_min). */
orig_mid_min = mid_min;
new_dqs = start_dqs;
mid_min = 0;
- debug_cond(DLEVEL == 1, "%s:%d write_center: start_dqs=%d new_dqs=%d \
- mid_min=%d\n", __func__, __LINE__, start_dqs, new_dqs, mid_min);
- /* Initialize data for export structures */
- dqs_margin = IO_IO_OUT1_DELAY_MAX + 1;
- dq_margin = IO_IO_OUT1_DELAY_MAX + 1;
-
- /* add delay to bring centre of all DQ windows to the same "level" */
- for (i = 0, p = test_bgn; i < RW_MGR_MEM_DQ_PER_WRITE_DQS; i++, p++) {
- /* Use values before divide by 2 to reduce round off error */
- shift_dq = (left_edge[i] - right_edge[i] -
- (left_edge[min_index] - right_edge[min_index]))/2 +
- (orig_mid_min - mid_min);
-
- debug_cond(DLEVEL == 2, "%s:%d write_center: before: shift_dq \
- [%u]=%d\n", __func__, __LINE__, i, shift_dq);
-
- addr = SDR_PHYGRP_SCCGRP_ADDRESS | SCC_MGR_IO_OUT1_DELAY_OFFSET;
- temp_dq_out1_delay = readl(addr + (i << 2));
- if (shift_dq + (int32_t)temp_dq_out1_delay >
- (int32_t)IO_IO_OUT1_DELAY_MAX) {
- shift_dq = (int32_t)IO_IO_OUT1_DELAY_MAX - temp_dq_out1_delay;
- } else if (shift_dq + (int32_t)temp_dq_out1_delay < 0) {
- shift_dq = -(int32_t)temp_dq_out1_delay;
- }
- debug_cond(DLEVEL == 2, "write_center: after: shift_dq[%u]=%d\n",
- i, shift_dq);
- scc_mgr_set_dq_out1_delay(i, temp_dq_out1_delay + shift_dq);
- scc_mgr_load_dq(i);
-
- debug_cond(DLEVEL == 2, "write_center: margin[%u]=[%d,%d]\n", i,
- left_edge[i] - shift_dq + (-mid_min),
- right_edge[i] + shift_dq - (-mid_min));
- /* To determine values for export structures */
- if (left_edge[i] - shift_dq + (-mid_min) < dq_margin)
- dq_margin = left_edge[i] - shift_dq + (-mid_min);
+ debug_cond(DLEVEL == 1,
+ "%s:%d write_center: start_dqs=%d new_dqs=%d mid_min=%d\n",
+ __func__, __LINE__, start_dqs, new_dqs, mid_min);
- if (right_edge[i] + shift_dq - (-mid_min) < dqs_margin)
- dqs_margin = right_edge[i] + shift_dq - (-mid_min);
- }
+ /* Add delay to bring centre of all DQ windows to the same "level". */
+ center_dq_windows(1, left_edge, right_edge, mid_min, orig_mid_min,
+ min_index, 0, &dq_margin, &dqs_margin);
/* Move DQS */
scc_mgr_apply_group_dqs_io_and_oct_out1(write_group, new_dqs);
debug_cond(DLEVEL == 2, "%s:%d write_center: DM\n", __func__, __LINE__);
/*
- * set the left and right edge of each bit to an illegal value,
- * use (IO_IO_OUT1_DELAY_MAX + 1) as an illegal value,
+ * Set the left and right edge of each bit to an illegal value.
+ * Use (iocfg->io_out1_delay_max + 1) as an illegal value.
*/
- left_edge[0] = IO_IO_OUT1_DELAY_MAX + 1;
- right_edge[0] = IO_IO_OUT1_DELAY_MAX + 1;
- int32_t bgn_curr = IO_IO_OUT1_DELAY_MAX + 1;
- int32_t end_curr = IO_IO_OUT1_DELAY_MAX + 1;
- int32_t bgn_best = IO_IO_OUT1_DELAY_MAX + 1;
- int32_t end_best = IO_IO_OUT1_DELAY_MAX + 1;
- int32_t win_best = 0;
-
- /* Search for the/part of the window with DM shift */
- for (d = IO_IO_OUT1_DELAY_MAX; d >= 0; d -= DELTA_D) {
- scc_mgr_apply_group_dm_out1_delay(d);
- writel(0, &sdr_scc_mgr->update);
-
- if (rw_mgr_mem_calibrate_write_test(rank_bgn, write_group, 1,
- PASS_ALL_BITS, &bit_chk,
- 0)) {
- /* USE Set current end of the window */
- end_curr = -d;
- /*
- * If a starting edge of our window has not been seen
- * this is our current start of the DM window.
- */
- if (bgn_curr == IO_IO_OUT1_DELAY_MAX + 1)
- bgn_curr = -d;
-
- /*
- * If current window is bigger than best seen.
- * Set best seen to be current window.
- */
- if ((end_curr-bgn_curr+1) > win_best) {
- win_best = end_curr-bgn_curr+1;
- bgn_best = bgn_curr;
- end_best = end_curr;
- }
- } else {
- /* We just saw a failing test. Reset temp edge */
- bgn_curr = IO_IO_OUT1_DELAY_MAX + 1;
- end_curr = IO_IO_OUT1_DELAY_MAX + 1;
- }
- }
+ left_edge[0] = iocfg->io_out1_delay_max + 1;
+ right_edge[0] = iocfg->io_out1_delay_max + 1;
+ /* Search for the/part of the window with DM shift. */
+ search_window(1, rank_bgn, write_group, &bgn_curr, &end_curr,
+ &bgn_best, &end_best, &win_best, 0);
- /* Reset DM delay chains to 0 */
+ /* Reset DM delay chains to 0. */
scc_mgr_apply_group_dm_out1_delay(0);
/*
* Check to see if the current window nudges up aganist 0 delay.
* If so we need to continue the search by shifting DQS otherwise DQS
- * search begins as a new search. */
+ * search begins as a new search.
+ */
if (end_curr != 0) {
- bgn_curr = IO_IO_OUT1_DELAY_MAX + 1;
- end_curr = IO_IO_OUT1_DELAY_MAX + 1;
+ bgn_curr = iocfg->io_out1_delay_max + 1;
+ end_curr = iocfg->io_out1_delay_max + 1;
}
- /* Search for the/part of the window with DQS shifts */
- for (d = 0; d <= IO_IO_OUT1_DELAY_MAX - new_dqs; d += DELTA_D) {
- /*
- * Note: This only shifts DQS, so are we limiting ourselve to
- * width of DQ unnecessarily.
- */
- scc_mgr_apply_group_dqs_io_and_oct_out1(write_group,
- d + new_dqs);
-
- writel(0, &sdr_scc_mgr->update);
- if (rw_mgr_mem_calibrate_write_test(rank_bgn, write_group, 1,
- PASS_ALL_BITS, &bit_chk,
- 0)) {
- /* USE Set current end of the window */
- end_curr = d;
- /*
- * If a beginning edge of our window has not been seen
- * this is our current begin of the DM window.
- */
- if (bgn_curr == IO_IO_OUT1_DELAY_MAX + 1)
- bgn_curr = d;
-
- /*
- * If current window is bigger than best seen. Set best
- * seen to be current window.
- */
- if ((end_curr-bgn_curr+1) > win_best) {
- win_best = end_curr-bgn_curr+1;
- bgn_best = bgn_curr;
- end_best = end_curr;
- }
- } else {
- /* We just saw a failing test. Reset temp edge */
- bgn_curr = IO_IO_OUT1_DELAY_MAX + 1;
- end_curr = IO_IO_OUT1_DELAY_MAX + 1;
-
- /* Early exit optimization: if ther remaining delay
- chain space is less than already seen largest window
- we can exit */
- if ((win_best-1) >
- (IO_IO_OUT1_DELAY_MAX - new_dqs - d)) {
- break;
- }
- }
- }
+ /* Search for the/part of the window with DQS shifts. */
+ search_window(0, rank_bgn, write_group, &bgn_curr, &end_curr,
+ &bgn_best, &end_best, &win_best, new_dqs);
- /* assign left and right edge for cal and reporting; */
- left_edge[0] = -1*bgn_best;
+ /* Assign left and right edge for cal and reporting. */
+ left_edge[0] = -1 * bgn_best;
right_edge[0] = end_best;
- debug_cond(DLEVEL == 2, "%s:%d dm_calib: left=%d right=%d\n", __func__,
- __LINE__, left_edge[0], right_edge[0]);
+ debug_cond(DLEVEL == 2, "%s:%d dm_calib: left=%d right=%d\n",
+ __func__, __LINE__, left_edge[0], right_edge[0]);
- /* Move DQS (back to orig) */
+ /* Move DQS (back to orig). */
scc_mgr_apply_group_dqs_io_and_oct_out1(write_group, new_dqs);
/* Move DM */
- /* Find middle of window for the DM bit */
+ /* Find middle of window for the DM bit. */
mid = (left_edge[0] - right_edge[0]) / 2;
- /* only move right, since we are not moving DQS/DQ */
+ /* Only move right, since we are not moving DQS/DQ. */
if (mid < 0)
mid = 0;
- /* dm_marign should fail if we never find a window */
+ /* dm_marign should fail if we never find a window. */
if (win_best == 0)
dm_margin = -1;
else
scc_mgr_apply_group_dm_out1_delay(mid);
writel(0, &sdr_scc_mgr->update);
- debug_cond(DLEVEL == 2, "%s:%d dm_calib: left=%d right=%d mid=%d \
- dm_margin=%d\n", __func__, __LINE__, left_edge[0],
- right_edge[0], mid, dm_margin);
- /* Export values */
+ debug_cond(DLEVEL == 2,
+ "%s:%d dm_calib: left=%d right=%d mid=%d dm_margin=%d\n",
+ __func__, __LINE__, left_edge[0], right_edge[0],
+ mid, dm_margin);
+ /* Export values. */
gbl->fom_out += dq_margin + dqs_margin;
- debug_cond(DLEVEL == 2, "%s:%d write_center: dq_margin=%d \
- dqs_margin=%d dm_margin=%d\n", __func__, __LINE__,
- dq_margin, dqs_margin, dm_margin);
+ debug_cond(DLEVEL == 2,
+ "%s:%d write_center: dq_margin=%d dqs_margin=%d dm_margin=%d\n",
+ __func__, __LINE__, dq_margin, dqs_margin, dm_margin);
/*
* Do not remove this line as it makes sure all of our
* decisions have been applied.
*/
writel(0, &sdr_scc_mgr->update);
- return (dq_margin >= 0) && (dqs_margin >= 0) && (dm_margin >= 0);
+
+ if ((dq_margin < 0) || (dqs_margin < 0) || (dm_margin < 0))
+ return -EINVAL;
+
+ return 0;
}
-/* calibrate the write operations */
-static uint32_t rw_mgr_mem_calibrate_writes(uint32_t rank_bgn, uint32_t g,
- uint32_t test_bgn)
+/**
+ * rw_mgr_mem_calibrate_writes() - Write Calibration Part One
+ * @rank_bgn: Rank number
+ * @group: Read/Write Group
+ * @test_bgn: Rank at which the test begins
+ *
+ * Stage 2: Write Calibration Part One.
+ *
+ * This function implements UniPHY calibration Stage 2, as explained in
+ * detail in Altera EMI_RM 2015.05.04 , "UniPHY Calibration Stages".
+ */
+static int rw_mgr_mem_calibrate_writes(const u32 rank_bgn, const u32 group,
+ const u32 test_bgn)
{
- /* update info for sims */
- debug("%s:%d %u %u\n", __func__, __LINE__, g, test_bgn);
+ int ret;
+ /* Update info for sims */
+ debug("%s:%d %u %u\n", __func__, __LINE__, group, test_bgn);
+
+ reg_file_set_group(group);
reg_file_set_stage(CAL_STAGE_WRITES);
reg_file_set_sub_stage(CAL_SUBSTAGE_WRITES_CENTER);
- reg_file_set_group(g);
-
- if (!rw_mgr_mem_calibrate_writes_center(rank_bgn, g, test_bgn)) {
- set_failing_group_stage(g, CAL_STAGE_WRITES,
+ ret = rw_mgr_mem_calibrate_writes_center(rank_bgn, group, test_bgn);
+ if (ret)
+ set_failing_group_stage(group, CAL_STAGE_WRITES,
CAL_SUBSTAGE_WRITES_CENTER);
- return 0;
- }
- return 1;
+ return ret;
}
/**
{
int r;
- for (r = 0; r < RW_MGR_MEM_NUMBER_OF_RANKS; r++) {
- /* Test if the rank should be skipped. */
- if (param->skip_ranks[r])
- continue;
-
+ for (r = 0; r < rwcfg->mem_number_of_ranks; r++) {
/* Set rank. */
set_rank_and_odt_mask(r, RW_MGR_ODT_MODE_OFF);
/* Precharge all banks. */
- writel(RW_MGR_PRECHARGE_ALL, SDR_PHYGRP_RWMGRGRP_ADDRESS |
+ writel(rwcfg->precharge_all, SDR_PHYGRP_RWMGRGRP_ADDRESS |
RW_MGR_RUN_SINGLE_GROUP_OFFSET);
writel(0x0F, &sdr_rw_load_mgr_regs->load_cntr0);
- writel(RW_MGR_ACTIVATE_0_AND_1_WAIT1,
+ writel(rwcfg->activate_0_and_1_wait1,
&sdr_rw_load_jump_mgr_regs->load_jump_add0);
writel(0x0F, &sdr_rw_load_mgr_regs->load_cntr1);
- writel(RW_MGR_ACTIVATE_0_AND_1_WAIT2,
+ writel(rwcfg->activate_0_and_1_wait2,
&sdr_rw_load_jump_mgr_regs->load_jump_add1);
/* Activate rows. */
- writel(RW_MGR_ACTIVATE_0_AND_1, SDR_PHYGRP_RWMGRGRP_ADDRESS |
+ writel(rwcfg->activate_0_and_1, SDR_PHYGRP_RWMGRGRP_ADDRESS |
RW_MGR_RUN_SINGLE_GROUP_OFFSET);
}
}
* so max latency in AFI clocks, used here, is correspondingly
* smaller.
*/
- const u32 max_latency = (1 << MAX_LATENCY_COUNT_WIDTH) - 1;
+ const u32 max_latency = (1 << misccfg->max_latency_count_width) - 1;
u32 rlat, wlat;
debug("%s:%d\n", __func__, __LINE__);
*/
static void mem_skip_calibrate(void)
{
- uint32_t vfifo_offset;
- uint32_t i, j, r;
+ u32 vfifo_offset;
+ u32 i, j, r;
debug("%s:%d\n", __func__, __LINE__);
/* Need to update every shadow register set used by the interface */
- for (r = 0; r < RW_MGR_MEM_NUMBER_OF_RANKS;
+ for (r = 0; r < rwcfg->mem_number_of_ranks;
r += NUM_RANKS_PER_SHADOW_REG) {
/*
* Set output phase alignment settings appropriate for
* skip calibration.
*/
- for (i = 0; i < RW_MGR_MEM_IF_READ_DQS_WIDTH; i++) {
+ for (i = 0; i < rwcfg->mem_if_read_dqs_width; i++) {
scc_mgr_set_dqs_en_phase(i, 0);
-#if IO_DLL_CHAIN_LENGTH == 6
- scc_mgr_set_dqdqs_output_phase(i, 6);
-#else
- scc_mgr_set_dqdqs_output_phase(i, 7);
-#endif
+ if (iocfg->dll_chain_length == 6)
+ scc_mgr_set_dqdqs_output_phase(i, 6);
+ else
+ scc_mgr_set_dqdqs_output_phase(i, 7);
/*
* Case:33398
*
*
* Hence, to make DQS aligned to CK, we need to delay
* DQS by:
- * (720 - 90 - 180 - 2 * (360 / IO_DLL_CHAIN_LENGTH))
+ * (720 - 90 - 180 - 2 * (360 / iocfg->dll_chain_length))
*
- * Dividing the above by (360 / IO_DLL_CHAIN_LENGTH)
+ * Dividing the above by (360 / iocfg->dll_chain_length)
* gives us the number of ptaps, which simplies to:
*
- * (1.25 * IO_DLL_CHAIN_LENGTH - 2)
+ * (1.25 * iocfg->dll_chain_length - 2)
*/
scc_mgr_set_dqdqs_output_phase(i,
- 1.25 * IO_DLL_CHAIN_LENGTH - 2);
+ 1.25 * iocfg->dll_chain_length - 2);
}
writel(0xff, &sdr_scc_mgr->dqs_ena);
writel(0xff, &sdr_scc_mgr->dqs_io_ena);
- for (i = 0; i < RW_MGR_MEM_IF_WRITE_DQS_WIDTH; i++) {
+ for (i = 0; i < rwcfg->mem_if_write_dqs_width; i++) {
writel(i, SDR_PHYGRP_SCCGRP_ADDRESS |
SCC_MGR_GROUP_COUNTER_OFFSET);
}
}
/* Compensate for simulation model behaviour */
- for (i = 0; i < RW_MGR_MEM_IF_READ_DQS_WIDTH; i++) {
+ for (i = 0; i < rwcfg->mem_if_read_dqs_width; i++) {
scc_mgr_set_dqs_bus_in_delay(i, 10);
scc_mgr_load_dqs(i);
}
* ArriaV has hard FIFOs that can only be initialized by incrementing
* in sequencer.
*/
- vfifo_offset = CALIB_VFIFO_OFFSET;
+ vfifo_offset = misccfg->calib_vfifo_offset;
for (j = 0; j < vfifo_offset; j++)
writel(0xff, &phy_mgr_cmd->inc_vfifo_hard_phy);
writel(0, &phy_mgr_cmd->fifo_reset);
* For Arria V and Cyclone V with hard LFIFO, we get the skip-cal
* setting from generation-time constant.
*/
- gbl->curr_read_lat = CALIB_LFIFO_OFFSET;
+ gbl->curr_read_lat = misccfg->calib_lfifo_offset;
writel(gbl->curr_read_lat, &phy_mgr_cfg->phy_rlat);
}
*
* Perform memory calibration.
*/
-static uint32_t mem_calibrate(void)
+static u32 mem_calibrate(void)
{
- uint32_t i;
- uint32_t rank_bgn, sr;
- uint32_t write_group, write_test_bgn;
- uint32_t read_group, read_test_bgn;
- uint32_t run_groups, current_run;
- uint32_t failing_groups = 0;
- uint32_t group_failed = 0;
+ u32 i;
+ u32 rank_bgn, sr;
+ u32 write_group, write_test_bgn;
+ u32 read_group, read_test_bgn;
+ u32 run_groups, current_run;
+ u32 failing_groups = 0;
+ u32 group_failed = 0;
- const u32 rwdqs_ratio = RW_MGR_MEM_IF_READ_DQS_WIDTH /
- RW_MGR_MEM_IF_WRITE_DQS_WIDTH;
+ const u32 rwdqs_ratio = rwcfg->mem_if_read_dqs_width /
+ rwcfg->mem_if_write_dqs_width;
debug("%s:%d\n", __func__, __LINE__);
/* Initialize bit slips. */
mem_precharge_and_activate();
- for (i = 0; i < RW_MGR_MEM_IF_READ_DQS_WIDTH; i++) {
+ for (i = 0; i < rwcfg->mem_if_read_dqs_width; i++) {
writel(i, SDR_PHYGRP_SCCGRP_ADDRESS |
SCC_MGR_GROUP_COUNTER_OFFSET);
/* Only needed once to set all groups, pins, DQ, DQS, DM. */
*/
scc_mgr_zero_all();
- run_groups = ~param->skip_groups;
+ run_groups = ~0;
for (write_group = 0, write_test_bgn = 0; write_group
- < RW_MGR_MEM_IF_WRITE_DQS_WIDTH; write_group++,
- write_test_bgn += RW_MGR_MEM_DQ_PER_WRITE_DQS) {
+ < rwcfg->mem_if_write_dqs_width; write_group++,
+ write_test_bgn += rwcfg->mem_dq_per_write_dqs) {
/* Initialize the group failure */
group_failed = 0;
read_test_bgn = 0;
read_group < (write_group + 1) * rwdqs_ratio;
read_group++,
- read_test_bgn += RW_MGR_MEM_DQ_PER_READ_DQS) {
+ read_test_bgn += rwcfg->mem_dq_per_read_dqs) {
if (STATIC_CALIB_STEPS & CALIB_SKIP_VFIFO)
continue;
/* Calibrate the output side */
for (rank_bgn = 0, sr = 0;
- rank_bgn < RW_MGR_MEM_NUMBER_OF_RANKS;
+ rank_bgn < rwcfg->mem_number_of_ranks;
rank_bgn += NUM_RANKS_PER_SHADOW_REG, sr++) {
if (STATIC_CALIB_STEPS & CALIB_SKIP_WRITES)
continue;
if (STATIC_CALIB_STEPS & CALIB_SKIP_DELAY_SWEEPS)
continue;
- /*
- * Determine if this set of ranks
- * should be skipped entirely.
- */
- if (param->skip_shadow_regs[sr])
- continue;
-
/* Calibrate WRITEs */
- if (rw_mgr_mem_calibrate_writes(rank_bgn,
+ if (!rw_mgr_mem_calibrate_writes(rank_bgn,
write_group, write_test_bgn))
continue;
read_test_bgn = 0;
read_group < (write_group + 1) * rwdqs_ratio;
read_group++,
- read_test_bgn += RW_MGR_MEM_DQ_PER_READ_DQS) {
+ read_test_bgn += rwcfg->mem_dq_per_read_dqs) {
if (STATIC_CALIB_STEPS & CALIB_SKIP_WRITES)
continue;
- if (rw_mgr_mem_calibrate_vfifo_end(read_group,
+ if (!rw_mgr_mem_calibrate_vfifo_end(read_group,
read_test_bgn))
continue;
if (STATIC_CALIB_STEPS & CALIB_SKIP_LFIFO)
continue;
- /*
- * If we're skipping groups as part of debug,
- * don't calibrate LFIFO.
- */
- if (param->skip_groups != 0)
- continue;
-
/* Calibrate the LFIFO */
if (!rw_mgr_mem_calibrate_lfifo())
return 0;
*/
static void debug_mem_calibrate(int pass)
{
- uint32_t debug_info;
+ u32 debug_info;
if (pass) {
printf("%s: CALIBRATION PASSED\n", __FILE__);
*/
static void hc_initialize_rom_data(void)
{
+ unsigned int nelem = 0;
+ const u32 *rom_init;
u32 i, addr;
+ socfpga_get_seq_inst_init(&rom_init, &nelem);
addr = SDR_PHYGRP_RWMGRGRP_ADDRESS | RW_MGR_INST_ROM_WRITE_OFFSET;
- for (i = 0; i < ARRAY_SIZE(inst_rom_init); i++)
- writel(inst_rom_init[i], addr + (i << 2));
+ for (i = 0; i < nelem; i++)
+ writel(rom_init[i], addr + (i << 2));
+ socfpga_get_seq_ac_init(&rom_init, &nelem);
addr = SDR_PHYGRP_RWMGRGRP_ADDRESS | RW_MGR_AC_ROM_WRITE_OFFSET;
- for (i = 0; i < ARRAY_SIZE(ac_rom_init); i++)
- writel(ac_rom_init[i], addr + (i << 2));
+ for (i = 0; i < nelem; i++)
+ writel(rom_init[i], addr + (i << 2));
}
/**
static void initialize_reg_file(void)
{
/* Initialize the register file with the correct data */
- writel(REG_FILE_INIT_SEQ_SIGNATURE, &sdr_reg_file->signature);
+ writel(misccfg->reg_file_init_seq_signature, &sdr_reg_file->signature);
writel(0, &sdr_reg_file->debug_data_addr);
writel(0, &sdr_reg_file->cur_stage);
writel(0, &sdr_reg_file->fom);
*/
static void initialize_hps_phy(void)
{
- uint32_t reg;
+ u32 reg;
/*
* Tracking also gets configured here because it's in the
* same register.
*/
- uint32_t trk_sample_count = 7500;
- uint32_t trk_long_idle_sample_count = (10 << 16) | 100;
+ u32 trk_sample_count = 7500;
+ u32 trk_long_idle_sample_count = (10 << 16) | 100;
/*
* Format is number of outer loops in the 16 MSB, sample
* count in 16 LSB.
* Compute usable version of value in case we skip full
* computation later.
*/
- writel(DIV_ROUND_UP(IO_DELAY_PER_OPA_TAP, IO_DELAY_PER_DCHAIN_TAP) - 1,
+ writel(DIV_ROUND_UP(iocfg->delay_per_opa_tap, iocfg->delay_per_dchain_tap) - 1,
&sdr_reg_file->dtaps_per_ptap);
/* trk_sample_count */
&sdr_reg_file->delays);
/* mux delay */
- writel((RW_MGR_IDLE << 24) | (RW_MGR_ACTIVATE_1 << 16) |
- (RW_MGR_SGLE_READ << 8) | (RW_MGR_PRECHARGE_ALL << 0),
+ writel((rwcfg->idle << 24) | (rwcfg->activate_1 << 16) |
+ (rwcfg->sgle_read << 8) | (rwcfg->precharge_all << 0),
&sdr_reg_file->trk_rw_mgr_addr);
- writel(RW_MGR_MEM_IF_READ_DQS_WIDTH,
+ writel(rwcfg->mem_if_read_dqs_width,
&sdr_reg_file->trk_read_dqs_width);
/* trefi [7:0] */
- writel((RW_MGR_REFRESH_ALL << 24) | (1000 << 0),
+ writel((rwcfg->refresh_all << 24) | (1000 << 0),
&sdr_reg_file->trk_rfsh);
}
{
struct param_type my_param;
struct gbl_type my_gbl;
- uint32_t pass;
+ u32 pass;
memset(&my_param, 0, sizeof(my_param));
memset(&my_gbl, 0, sizeof(my_gbl));
param = &my_param;
gbl = &my_gbl;
+ rwcfg = socfpga_get_sdram_rwmgr_config();
+ iocfg = socfpga_get_sdram_io_config();
+ misccfg = socfpga_get_sdram_misc_config();
+
/* Set the calibration enabled by default */
gbl->phy_debug_mode_flags |= PHY_DEBUG_ENABLE_CAL_RPT;
/*
debug("%s:%d\n", __func__, __LINE__);
debug_cond(DLEVEL == 1,
"DDR3 FULL_RATE ranks=%u cs/dimm=%u dq/dqs=%u,%u vg/dqs=%u,%u ",
- RW_MGR_MEM_NUMBER_OF_RANKS, RW_MGR_MEM_NUMBER_OF_CS_PER_DIMM,
- RW_MGR_MEM_DQ_PER_READ_DQS, RW_MGR_MEM_DQ_PER_WRITE_DQS,
- RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS,
- RW_MGR_MEM_VIRTUAL_GROUPS_PER_WRITE_DQS);
+ rwcfg->mem_number_of_ranks, rwcfg->mem_number_of_cs_per_dimm,
+ rwcfg->mem_dq_per_read_dqs, rwcfg->mem_dq_per_write_dqs,
+ rwcfg->mem_virtual_groups_per_read_dqs,
+ rwcfg->mem_virtual_groups_per_write_dqs);
debug_cond(DLEVEL == 1,
"dqs=%u,%u dq=%u dm=%u ptap_delay=%u dtap_delay=%u ",
- RW_MGR_MEM_IF_READ_DQS_WIDTH, RW_MGR_MEM_IF_WRITE_DQS_WIDTH,
- RW_MGR_MEM_DATA_WIDTH, RW_MGR_MEM_DATA_MASK_WIDTH,
- IO_DELAY_PER_OPA_TAP, IO_DELAY_PER_DCHAIN_TAP);
+ rwcfg->mem_if_read_dqs_width, rwcfg->mem_if_write_dqs_width,
+ rwcfg->mem_data_width, rwcfg->mem_data_mask_width,
+ iocfg->delay_per_opa_tap, iocfg->delay_per_dchain_tap);
debug_cond(DLEVEL == 1, "dtap_dqsen_delay=%u, dll=%u",
- IO_DELAY_PER_DQS_EN_DCHAIN_TAP, IO_DLL_CHAIN_LENGTH);
+ iocfg->delay_per_dqs_en_dchain_tap, iocfg->dll_chain_length);
debug_cond(DLEVEL == 1, "max values: en_p=%u dqdqs_p=%u en_d=%u dqs_in_d=%u ",
- IO_DQS_EN_PHASE_MAX, IO_DQDQS_OUT_PHASE_MAX,
- IO_DQS_EN_DELAY_MAX, IO_DQS_IN_DELAY_MAX);
+ iocfg->dqs_en_phase_max, iocfg->dqdqs_out_phase_max,
+ iocfg->dqs_en_delay_max, iocfg->dqs_in_delay_max);
debug_cond(DLEVEL == 1, "io_in_d=%u io_out1_d=%u io_out2_d=%u ",
- IO_IO_IN_DELAY_MAX, IO_IO_OUT1_DELAY_MAX,
- IO_IO_OUT2_DELAY_MAX);
+ iocfg->io_in_delay_max, iocfg->io_out1_delay_max,
+ iocfg->io_out2_delay_max);
debug_cond(DLEVEL == 1, "dqs_in_reserve=%u dqs_out_reserve=%u\n",
- IO_DQS_IN_RESERVE, IO_DQS_OUT_RESERVE);
+ iocfg->dqs_in_reserve, iocfg->dqs_out_reserve);
hc_initialize_rom_data();
projects / karo-tx-uboot.git / blobdiff