* Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com
* Robert Snyder, AMCC/IBM, rob.snyder@fr.ibm.com
*
- * (C) Copyright 2007
+ * (C) Copyright 2007-2013
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
/* define DEBUG for debugging output (obviously ;-)) */
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/io.h>
-#include <ppc440.h>
-
-#include "sdram.h"
+#include <asm/cache.h>
+#include <asm/ppc440.h>
+#include <watchdog.h>
/*
* This DDR2 setup code can dynamically setup the TLB entries for the DDR2 memory
* memory.
*
* If at some time this restriction doesn't apply anymore, just define
- * CFG_ENABLE_SDRAM_CACHE in the board config file and this code should setup
+ * CONFIG_4xx_DCACHE in the board config file and this code should setup
* everything correctly.
*/
-#ifdef CFG_ENABLE_SDRAM_CACHE
+#ifdef CONFIG_4xx_DCACHE
#define MY_TLB_WORD2_I_ENABLE 0 /* enable caching on SDRAM */
#else
#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE /* disable caching on SDRAM */
#endif
-void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
-void dcbz_area(u32 start_address, u32 num_bytes);
-void dflush(void);
+/*-----------------------------------------------------------------------------+
+ * Prototypes
+ *-----------------------------------------------------------------------------*/
+extern int denali_wait_for_dlllock(void);
+extern void denali_core_search_data_eye(void);
+extern void dcbz_area(u32 start_address, u32 num_bytes);
-#ifdef CONFIG_ADD_RAM_INFO
static u32 is_ecc_enabled(void)
{
u32 val;
void board_add_ram_info(int use_default)
{
- PPC440_SYS_INFO board_cfg;
+ PPC4xx_SYS_INFO board_cfg;
u32 val;
if (is_ecc_enabled())
puts(" (ECC not");
get_sys_info(&board_cfg);
- printf(" enabled, %d MHz", (board_cfg.freqPLB * 2) / 1000000);
+ printf(" enabled, %ld MHz", (board_cfg.freqPLB * 2) / 1000000);
mfsdram(DDR0_03, val);
val = DDR0_03_CASLAT_DECODE(val);
printf(", CL%d)", val);
}
-#endif
-
-static int wait_for_dlllock(void)
-{
- u32 val;
- int wait = 0;
-
- /*
- * Wait for the DCC master delay line to finish calibration
- */
- mtdcr(ddrcfga, DDR0_17);
- val = DDR0_17_DLLLOCKREG_UNLOCKED;
-
- while (wait != 0xffff) {
- val = mfdcr(ddrcfgd);
- if ((val & DDR0_17_DLLLOCKREG_MASK) == DDR0_17_DLLLOCKREG_LOCKED)
- /* dlllockreg bit on */
- return 0;
- else
- wait++;
- }
- debug("0x%04x: DDR0_17 Value (dlllockreg bit): 0x%08x\n", wait, val);
- debug("Waiting for dlllockreg bit to raise\n");
-
- return -1;
-}
-
-#if defined(CONFIG_DDR_DATA_EYE)
-int wait_for_dram_init_complete(void)
-{
- u32 val;
- int wait = 0;
-
- /*
- * Wait for 'DRAM initialization complete' bit in status register
- */
- mtdcr(ddrcfga, DDR0_00);
-
- while (wait != 0xffff) {
- val = mfdcr(ddrcfgd);
- if ((val & DDR0_00_INT_STATUS_BIT6) == DDR0_00_INT_STATUS_BIT6)
- /* 'DRAM initialization complete' bit */
- return 0;
- else
- wait++;
- }
-
- debug("DRAM initialization complete bit in status register did not rise\n");
-
- return -1;
-}
-
-#define NUM_TRIES 64
-#define NUM_READS 10
-
-void denali_core_search_data_eye(u32 start_addr, u32 memory_size)
-{
- int k, j;
- u32 val;
- u32 wr_dqs_shift, dqs_out_shift, dll_dqs_delay_X;
- u32 max_passing_cases = 0, wr_dqs_shift_with_max_passing_cases = 0;
- u32 passing_cases = 0, dll_dqs_delay_X_sw_val = 0;
- u32 dll_dqs_delay_X_start_window = 0, dll_dqs_delay_X_end_window = 0;
- volatile u32 *ram_pointer;
- u32 test[NUM_TRIES] = {
- 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF,
- 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF,
- 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000,
- 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000,
- 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555,
- 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555,
- 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA,
- 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA,
- 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A,
- 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A,
- 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5,
- 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5,
- 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA,
- 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA,
- 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55,
- 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55 };
-
- ram_pointer = (volatile u32 *)start_addr;
-
- for (wr_dqs_shift = 64; wr_dqs_shift < 96; wr_dqs_shift++) {
- /*for (wr_dqs_shift=1; wr_dqs_shift<96; wr_dqs_shift++) {*/
-
- /*
- * De-assert 'start' parameter.
- */
- mtdcr(ddrcfga, DDR0_02);
- val = (mfdcr(ddrcfgd) & ~DDR0_02_START_MASK) | DDR0_02_START_OFF;
- mtdcr(ddrcfgd, val);
-
- /*
- * Set 'wr_dqs_shift'
- */
- mtdcr(ddrcfga, DDR0_09);
- val = (mfdcr(ddrcfgd) & ~DDR0_09_WR_DQS_SHIFT_MASK)
- | DDR0_09_WR_DQS_SHIFT_ENCODE(wr_dqs_shift);
- mtdcr(ddrcfgd, val);
-
- /*
- * Set 'dqs_out_shift' = wr_dqs_shift + 32
- */
- dqs_out_shift = wr_dqs_shift + 32;
- mtdcr(ddrcfga, DDR0_22);
- val = (mfdcr(ddrcfgd) & ~DDR0_22_DQS_OUT_SHIFT_MASK)
- | DDR0_22_DQS_OUT_SHIFT_ENCODE(dqs_out_shift);
- mtdcr(ddrcfgd, val);
-
- passing_cases = 0;
-
- for (dll_dqs_delay_X = 1; dll_dqs_delay_X < 64; dll_dqs_delay_X++) {
- /*for (dll_dqs_delay_X=1; dll_dqs_delay_X<128; dll_dqs_delay_X++) {*/
- /*
- * Set 'dll_dqs_delay_X'.
- */
- /* dll_dqs_delay_0 */
- mtdcr(ddrcfga, DDR0_17);
- val = (mfdcr(ddrcfgd) & ~DDR0_17_DLL_DQS_DELAY_0_MASK)
- | DDR0_17_DLL_DQS_DELAY_0_ENCODE(dll_dqs_delay_X);
- mtdcr(ddrcfgd, val);
- /* dll_dqs_delay_1 to dll_dqs_delay_4 */
- mtdcr(ddrcfga, DDR0_18);
- val = (mfdcr(ddrcfgd) & ~DDR0_18_DLL_DQS_DELAY_X_MASK)
- | DDR0_18_DLL_DQS_DELAY_4_ENCODE(dll_dqs_delay_X)
- | DDR0_18_DLL_DQS_DELAY_3_ENCODE(dll_dqs_delay_X)
- | DDR0_18_DLL_DQS_DELAY_2_ENCODE(dll_dqs_delay_X)
- | DDR0_18_DLL_DQS_DELAY_1_ENCODE(dll_dqs_delay_X);
- mtdcr(ddrcfgd, val);
- /* dll_dqs_delay_5 to dll_dqs_delay_8 */
- mtdcr(ddrcfga, DDR0_19);
- val = (mfdcr(ddrcfgd) & ~DDR0_19_DLL_DQS_DELAY_X_MASK)
- | DDR0_19_DLL_DQS_DELAY_8_ENCODE(dll_dqs_delay_X)
- | DDR0_19_DLL_DQS_DELAY_7_ENCODE(dll_dqs_delay_X)
- | DDR0_19_DLL_DQS_DELAY_6_ENCODE(dll_dqs_delay_X)
- | DDR0_19_DLL_DQS_DELAY_5_ENCODE(dll_dqs_delay_X);
- mtdcr(ddrcfgd, val);
-
- ppcMsync();
- ppcMbar();
-
- /*
- * Assert 'start' parameter.
- */
- mtdcr(ddrcfga, DDR0_02);
- val = (mfdcr(ddrcfgd) & ~DDR0_02_START_MASK) | DDR0_02_START_ON;
- mtdcr(ddrcfgd, val);
-
- ppcMsync();
- ppcMbar();
-
- /*
- * Wait for the DCC master delay line to finish calibration
- */
- if (wait_for_dlllock() != 0) {
- printf("dlllock did not occur !!!\n");
- printf("denali_core_search_data_eye!!!\n");
- printf("wr_dqs_shift = %d - dll_dqs_delay_X = %d\n",
- wr_dqs_shift, dll_dqs_delay_X);
- hang();
- }
- ppcMsync();
- ppcMbar();
-
- if (wait_for_dram_init_complete() != 0) {
- printf("dram init complete did not occur !!!\n");
- printf("denali_core_search_data_eye!!!\n");
- printf("wr_dqs_shift = %d - dll_dqs_delay_X = %d\n",
- wr_dqs_shift, dll_dqs_delay_X);
- hang();
- }
- udelay(100); /* wait 100us to ensure init is really completed !!! */
-
- /* write values */
- for (j=0; j<NUM_TRIES; j++) {
- ram_pointer[j] = test[j];
-
- /* clear any cache at ram location */
- __asm__("dcbf 0,%0": :"r" (&ram_pointer[j]));
- }
-
- /* read values back */
- for (j=0; j<NUM_TRIES; j++) {
- for (k=0; k<NUM_READS; k++) {
- /* clear any cache at ram location */
- __asm__("dcbf 0,%0": :"r" (&ram_pointer[j]));
-
- if (ram_pointer[j] != test[j])
- break;
- }
-
- /* read error */
- if (k != NUM_READS)
- break;
- }
-
- /* See if the dll_dqs_delay_X value passed.*/
- if (j < NUM_TRIES) {
- /* Failed */
- passing_cases = 0;
- /* break; */
- } else {
- /* Passed */
- if (passing_cases == 0)
- dll_dqs_delay_X_sw_val = dll_dqs_delay_X;
- passing_cases++;
- if (passing_cases >= max_passing_cases) {
- max_passing_cases = passing_cases;
- wr_dqs_shift_with_max_passing_cases = wr_dqs_shift;
- dll_dqs_delay_X_start_window = dll_dqs_delay_X_sw_val;
- dll_dqs_delay_X_end_window = dll_dqs_delay_X;
- }
- }
-
- /*
- * De-assert 'start' parameter.
- */
- mtdcr(ddrcfga, DDR0_02);
- val = (mfdcr(ddrcfgd) & ~DDR0_02_START_MASK) | DDR0_02_START_OFF;
- mtdcr(ddrcfgd, val);
-
- } /* for (dll_dqs_delay_X=0; dll_dqs_delay_X<128; dll_dqs_delay_X++) */
-
- } /* for (wr_dqs_shift=0; wr_dqs_shift<96; wr_dqs_shift++) */
-
- /*
- * Largest passing window is now detected.
- */
-
- /* Compute dll_dqs_delay_X value */
- dll_dqs_delay_X = (dll_dqs_delay_X_end_window + dll_dqs_delay_X_start_window) / 2;
- wr_dqs_shift = wr_dqs_shift_with_max_passing_cases;
-
- debug("DQS calibration - Window detected:\n");
- debug("max_passing_cases = %d\n", max_passing_cases);
- debug("wr_dqs_shift = %d\n", wr_dqs_shift);
- debug("dll_dqs_delay_X = %d\n", dll_dqs_delay_X);
- debug("dll_dqs_delay_X window = %d - %d\n",
- dll_dqs_delay_X_start_window, dll_dqs_delay_X_end_window);
-
- /*
- * De-assert 'start' parameter.
- */
- mtdcr(ddrcfga, DDR0_02);
- val = (mfdcr(ddrcfgd) & ~DDR0_02_START_MASK) | DDR0_02_START_OFF;
- mtdcr(ddrcfgd, val);
-
- /*
- * Set 'wr_dqs_shift'
- */
- mtdcr(ddrcfga, DDR0_09);
- val = (mfdcr(ddrcfgd) & ~DDR0_09_WR_DQS_SHIFT_MASK)
- | DDR0_09_WR_DQS_SHIFT_ENCODE(wr_dqs_shift);
- mtdcr(ddrcfgd, val);
- debug("DDR0_09=0x%08lx\n", val);
-
- /*
- * Set 'dqs_out_shift' = wr_dqs_shift + 32
- */
- dqs_out_shift = wr_dqs_shift + 32;
- mtdcr(ddrcfga, DDR0_22);
- val = (mfdcr(ddrcfgd) & ~DDR0_22_DQS_OUT_SHIFT_MASK)
- | DDR0_22_DQS_OUT_SHIFT_ENCODE(dqs_out_shift);
- mtdcr(ddrcfgd, val);
- debug("DDR0_22=0x%08lx\n", val);
-
- /*
- * Set 'dll_dqs_delay_X'.
- */
- /* dll_dqs_delay_0 */
- mtdcr(ddrcfga, DDR0_17);
- val = (mfdcr(ddrcfgd) & ~DDR0_17_DLL_DQS_DELAY_0_MASK)
- | DDR0_17_DLL_DQS_DELAY_0_ENCODE(dll_dqs_delay_X);
- mtdcr(ddrcfgd, val);
- debug("DDR0_17=0x%08lx\n", val);
-
- /* dll_dqs_delay_1 to dll_dqs_delay_4 */
- mtdcr(ddrcfga, DDR0_18);
- val = (mfdcr(ddrcfgd) & ~DDR0_18_DLL_DQS_DELAY_X_MASK)
- | DDR0_18_DLL_DQS_DELAY_4_ENCODE(dll_dqs_delay_X)
- | DDR0_18_DLL_DQS_DELAY_3_ENCODE(dll_dqs_delay_X)
- | DDR0_18_DLL_DQS_DELAY_2_ENCODE(dll_dqs_delay_X)
- | DDR0_18_DLL_DQS_DELAY_1_ENCODE(dll_dqs_delay_X);
- mtdcr(ddrcfgd, val);
- debug("DDR0_18=0x%08lx\n", val);
-
- /* dll_dqs_delay_5 to dll_dqs_delay_8 */
- mtdcr(ddrcfga, DDR0_19);
- val = (mfdcr(ddrcfgd) & ~DDR0_19_DLL_DQS_DELAY_X_MASK)
- | DDR0_19_DLL_DQS_DELAY_8_ENCODE(dll_dqs_delay_X)
- | DDR0_19_DLL_DQS_DELAY_7_ENCODE(dll_dqs_delay_X)
- | DDR0_19_DLL_DQS_DELAY_6_ENCODE(dll_dqs_delay_X)
- | DDR0_19_DLL_DQS_DELAY_5_ENCODE(dll_dqs_delay_X);
- mtdcr(ddrcfgd, val);
- debug("DDR0_19=0x%08lx\n", val);
-
- /*
- * Assert 'start' parameter.
- */
- mtdcr(ddrcfga, DDR0_02);
- val = (mfdcr(ddrcfgd) & ~DDR0_02_START_MASK) | DDR0_02_START_ON;
- mtdcr(ddrcfgd, val);
-
- ppcMsync();
- ppcMbar();
-
- /*
- * Wait for the DCC master delay line to finish calibration
- */
- if (wait_for_dlllock() != 0) {
- printf("dlllock did not occur !!!\n");
- hang();
- }
- ppcMsync();
- ppcMbar();
-
- if (wait_for_dram_init_complete() != 0) {
- printf("dram init complete did not occur !!!\n");
- hang();
- }
- udelay(100); /* wait 100us to ensure init is really completed !!! */
-}
-#endif /* CONFIG_DDR_DATA_EYE */
#ifdef CONFIG_DDR_ECC
static void wait_ddr_idle(void)
*/
}
-static void blank_string(int size)
-{
- int i;
-
- for (i=0; i<size; i++)
- putc('\b');
- for (i=0; i<size; i++)
- putc(' ');
- for (i=0; i<size; i++)
- putc('\b');
-}
-
static void program_ecc(u32 start_address,
u32 num_bytes,
u32 tlb_word2_i_value)
{
- u32 current_address;
- u32 end_address;
- u32 address_increment;
u32 val;
- char str[] = "ECC generation -";
- char slash[] = "\\|/-\\|/-";
- int loop = 0;
- int loopi = 0;
-
- current_address = start_address;
+ u32 current_addr = start_address;
+ u32 size;
+ int bytes_remaining;
sync();
- eieio();
wait_ddr_idle();
- if (tlb_word2_i_value == TLB_WORD2_I_ENABLE) {
- /* ECC bit set method for non-cached memory */
- address_increment = 4;
- end_address = current_address + num_bytes;
-
- puts(str);
-
- while (current_address < end_address) {
- *((u32 *)current_address) = 0x00000000;
- current_address += address_increment;
-
- if ((loop++ % (2 << 20)) == 0) {
- putc('\b');
- putc(slash[loopi++ % 8]);
- }
- }
-
- blank_string(strlen(str));
- } else {
- /* ECC bit set method for cached memory */
-#if 1 /* test-only: will remove this define later, when ECC problems are solved! */
- /*
- * Some boards (like lwmon5) need to preserve the memory
- * content upon ECC generation (for the log-buffer).
- * Therefore we don't fill the memory with a pattern or
- * just zero it, but write the same values back that are
- * already in the memory cells.
- */
- address_increment = CFG_CACHELINE_SIZE;
- end_address = current_address + num_bytes;
-
- current_address = start_address;
- while (current_address < end_address) {
- ppcDcbi(current_address);
- ppcDcbf(current_address);
- current_address += CFG_CACHELINE_SIZE;
- }
-#else
- dcbz_area(start_address, num_bytes);
- dflush();
-#endif
+ /*
+ * Because of 440EPx errata CHIP 11, we don't touch the last 256
+ * bytes of SDRAM.
+ */
+ bytes_remaining = num_bytes - CONFIG_SYS_MEM_TOP_HIDE;
+
+ /*
+ * We have to write the ECC bytes by zeroing and flushing in smaller
+ * steps, since the whole 256MByte takes too long for the external
+ * watchdog.
+ */
+ while (bytes_remaining > 0) {
+ size = min((64 << 20), bytes_remaining);
+
+ /* Write zero's to SDRAM */
+ dcbz_area(current_addr, size);
+
+ /* Write modified dcache lines back to memory */
+ clean_dcache_range(current_addr, current_addr + size);
+
+ current_addr += 64 << 20;
+ bytes_remaining -= 64 << 20;
+ WATCHDOG_RESET();
}
sync();
- eieio();
wait_ddr_idle();
/* Clear error status */
mtsdram(DDR0_01, ((val &~ DDR0_01_INT_MASK_MASK) | DDR0_01_INT_MASK_ALL_OFF));
sync();
- eieio();
wait_ddr_idle();
}
#endif
-static __inline__ u32 get_mcsr(void)
-{
- u32 val;
-
- asm volatile("mfspr %0, 0x23c" : "=r" (val) :);
- return val;
-}
-
-static __inline__ void set_mcsr(u32 val)
-{
- asm volatile("mtspr 0x23c, %0" : "=r" (val) :);
-}
-
/*************************************************************************
*
* initdram -- 440EPx's DDR controller is a DENALI Core
*
************************************************************************/
-long int initdram (int board_type)
+phys_size_t initdram (int board_type)
{
- u32 val;
-
-#if 0 /* test-only: will remove this define later, when ECC problems are solved! */
- /* CL=3 */
- mtsdram(DDR0_02, 0x00000000);
-
- mtsdram(DDR0_00, 0x0000190A);
- mtsdram(DDR0_01, 0x01000000);
- mtsdram(DDR0_03, 0x02030603); /* A suitable burst length was taken. CAS is right for our board */
-
- mtsdram(DDR0_04, 0x0A030300);
- mtsdram(DDR0_05, 0x02020308);
- mtsdram(DDR0_06, 0x0103C812);
- mtsdram(DDR0_07, 0x00090100);
- mtsdram(DDR0_08, 0x02c80001);
- mtsdram(DDR0_09, 0x00011D5F);
- mtsdram(DDR0_10, 0x00000300);
- mtsdram(DDR0_11, 0x000CC800);
- mtsdram(DDR0_12, 0x00000003);
- mtsdram(DDR0_14, 0x00000000);
- mtsdram(DDR0_17, 0x1e000000);
- mtsdram(DDR0_18, 0x1e1e1e1e);
- mtsdram(DDR0_19, 0x1e1e1e1e);
- mtsdram(DDR0_20, 0x0B0B0B0B);
- mtsdram(DDR0_21, 0x0B0B0B0B);
-#ifdef CONFIG_DDR_ECC
- mtsdram(DDR0_22, 0x00267F0B | DDR0_22_CTRL_RAW_ECC_ENABLE); /* enable ECC */
-#else
- mtsdram(DDR0_22, 0x00267F0B);
-#endif
-
- mtsdram(DDR0_23, 0x01000000);
- mtsdram(DDR0_24, 0x01010001);
-
- mtsdram(DDR0_26, 0x2D93028A);
- mtsdram(DDR0_27, 0x0784682B);
-
- mtsdram(DDR0_28, 0x00000080);
- mtsdram(DDR0_31, 0x00000000);
- mtsdram(DDR0_42, 0x01000006);
-
- mtsdram(DDR0_43, 0x030A0200);
- mtsdram(DDR0_44, 0x00000003);
- mtsdram(DDR0_02, 0x00000001); /* Activate the denali core */
-#else
+#if defined(CONFIG_SPL_BUILD) || !defined(CONFIG_LCD4_LWMON5)
/* CL=4 */
mtsdram(DDR0_02, 0x00000000);
mtsdram(DDR0_07, 0x00090100);
mtsdram(DDR0_08, 0x03c80001);
mtsdram(DDR0_09, 0x00011D5F);
- mtsdram(DDR0_10, 0x00000300);
+ mtsdram(DDR0_10, 0x00000100);
mtsdram(DDR0_11, 0x000CC800);
mtsdram(DDR0_12, 0x00000003);
mtsdram(DDR0_14, 0x00000000);
mtsdram(DDR0_43, 0x050A0200);
mtsdram(DDR0_44, 0x00000005);
mtsdram(DDR0_02, 0x00000001); /* Activate the denali core */
-#endif
- wait_for_dlllock();
+ denali_wait_for_dlllock();
+
+#if defined(CONFIG_DDR_DATA_EYE)
+ /* -----------------------------------------------------------+
+ * Perform data eye search if requested.
+ * ----------------------------------------------------------*/
+ program_tlb(0, CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MBYTES_SDRAM << 20,
+ TLB_WORD2_I_ENABLE);
+ denali_core_search_data_eye();
+ remove_tlb(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MBYTES_SDRAM << 20);
+#endif
/*
* Program tlb entries for this size (dynamic)
*/
- program_tlb(0, 0, CFG_MBYTES_SDRAM << 20, MY_TLB_WORD2_I_ENABLE);
+ program_tlb(0, CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MBYTES_SDRAM << 20,
+ MY_TLB_WORD2_I_ENABLE);
+#if defined(CONFIG_DDR_ECC)
+#if defined(CONFIG_4xx_DCACHE)
+ /*
+ * If ECC is enabled, initialize the parity bits.
+ */
+ program_ecc(0, CONFIG_SYS_MBYTES_SDRAM << 20, 0);
+#else /* CONFIG_4xx_DCACHE */
/*
* Setup 2nd TLB with same physical address but different virtual address
* with cache enabled. This is done for fast ECC generation.
*/
- program_tlb(0, CFG_DDR_CACHED_ADDR, CFG_MBYTES_SDRAM << 20, 0);
+ program_tlb(0, CONFIG_SYS_DDR_CACHED_ADDR, CONFIG_SYS_MBYTES_SDRAM << 20, 0);
-#ifdef CONFIG_DDR_DATA_EYE
/*
- * Perform data eye search if requested.
+ * If ECC is enabled, initialize the parity bits.
*/
- denali_core_search_data_eye(CFG_DDR_CACHED_ADDR, CFG_MBYTES_SDRAM << 20);
+ program_ecc(CONFIG_SYS_DDR_CACHED_ADDR, CONFIG_SYS_MBYTES_SDRAM << 20, 0);
/*
- * Clear possible errors resulting from data-eye-search.
- * If not done, then we could get an interrupt later on when
- * exceptions are enabled.
+ * Now after initialization (auto-calibration and ECC generation)
+ * remove the TLB entries with caches enabled and program again with
+ * desired cache functionality
*/
- val = get_mcsr();
- set_mcsr(val);
-#endif
+ remove_tlb(CONFIG_SYS_DDR_CACHED_ADDR, CONFIG_SYS_MBYTES_SDRAM << 20);
+#endif /* CONFIG_4xx_DCACHE */
+#endif /* CONFIG_DDR_ECC */
-#ifdef CONFIG_DDR_ECC
/*
- * If ECC is enabled, initialize the parity bits.
+ * Clear possible errors resulting from data-eye-search.
+ * If not done, then we could get an interrupt later on when
+ * exceptions are enabled.
*/
- program_ecc(CFG_DDR_CACHED_ADDR, CFG_MBYTES_SDRAM << 20, 0);
-#endif
+ set_mcsr(get_mcsr());
+#endif /* CONFIG_SPL_BUILD */
- return (CFG_MBYTES_SDRAM << 20);
+ return (CONFIG_SYS_MBYTES_SDRAM << 20);
}
projects / karo-tx-uboot.git / blobdiff