struct sdram_conf_s {
unsigned long size;
unsigned long reg;
+#ifdef CONFIG_TQM8548
+ unsigned long refresh;
+#endif /* CONFIG_TQM8548 */
};
typedef struct sdram_conf_s sdram_conf_t;
+#ifdef CONFIG_TQM8548
+sdram_conf_t ddr_cs_conf[] = {
+ {(512 << 20), 0x80044102, 0x0001A000}, /* 512MB, 13x10(4) */
+ {(256 << 20), 0x80040102, 0x00014000}, /* 256MB, 13x10(4) */
+ {(128 << 20), 0x80040101, 0x0000C000}, /* 128MB, 13x9(4) */
+};
+#else /* !CONFIG_TQM8548 */
sdram_conf_t ddr_cs_conf[] = {
{(512 << 20), 0x80000202}, /* 512MB, 14x10(4) */
{(256 << 20), 0x80000102}, /* 256MB, 13x10(4) */
{(128 << 20), 0x80000101}, /* 128MB, 13x9(4) */
{( 64 << 20), 0x80000001}, /* 64MB, 12x9(4) */
};
+#endif /* CONFIG_TQM8548 */
#define N_DDR_CS_CONF (sizeof(ddr_cs_conf) / sizeof(ddr_cs_conf[0]))
long int sdram_setup (int casl)
{
int i;
- volatile ccsr_ddr_t *ddr = (void *)(CFG_MPC85xx_DDR_ADDR);
+ volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR);
+#ifdef CONFIG_TQM8548
+ volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+#else /* !CONFIG_TQM8548 */
unsigned long cfg_ddr_timing1;
unsigned long cfg_ddr_mode;
+#endif /* CONFIG_TQM8548 */
/*
* Disable memory controller.
ddr->cs0_config = 0;
ddr->sdram_cfg = 0;
+#ifdef CONFIG_TQM8548
+ ddr->cs0_bnds = (ddr_cs_conf[0].size - 1) >> 24;
+ ddr->cs0_config = ddr_cs_conf[0].reg;
+ ddr->timing_cfg_3 = 0x00010000;
+
+ /* TIMING CFG 1, 533MHz
+ * PRETOACT: 4 Clocks
+ * ACTTOPRE: 12 Clocks
+ * ACTTORW: 4 Clocks
+ * CASLAT: 4 Clocks
+ * REFREC: 34 Clocks
+ * WRREC: 4 Clocks
+ * ACTTOACT: 3 Clocks
+ * WRTORD: 2 Clocks
+ */
+ ddr->timing_cfg_1 = 0x4C47A432;
+
+ /* TIMING CFG 2, 533MHz
+ * ADD_LAT: 3 Clocks
+ * CPO: READLAT + 1
+ * WR_LAT: 3 Clocks
+ * RD_TO_PRE: 2 Clocks
+ * WR_DATA_DELAY: 1/2 Clock
+ * CKE_PLS: 1 Clock
+ * FOUR_ACT: 13 Clocks
+ */
+ ddr->timing_cfg_2 = 0x3318484D;
+
+ /* DDR SDRAM Mode, 533MHz
+ * MRS: Extended Mode Register
+ * OUT: Outputs enabled
+ * RDQS: no
+ * DQS: enabled
+ * OCD: default state
+ * RTT: 75 Ohms
+ * Posted CAS: 3 Clocks
+ * ODS: reduced strength
+ * DLL: enabled
+ * MR: Mode Register
+ * PD: fast exit
+ * WR: 4 Clocks
+ * DLL: no DLL reset
+ * TM: normal
+ * CAS latency: 4 Clocks
+ * BT: sequential
+ * Burst length: 4
+ */
+ ddr->sdram_mode = 0x439E0642;
+
+ /* DDR SDRAM Interval, 533MHz
+ * REFINT: 1040 Clocks
+ * BSTOPRE: 256
+ */
+ ddr->sdram_interval = (1040 << 16) | 0x100;
+
+ /*
+ * workaround for erratum DD10 of MPC8458 family below rev. 2.0:
+ * DDR IO receiver must be set to an acceptable bias point by modifying
+ * a hidden register.
+ */
+ if (SVR_REV (get_svr ()) < 0x20) {
+ gur->ddrioovcr = 0x90000000; /* enable, VSEL 1.8V */
+ }
+
+ /* DDR SDRAM CFG 2
+ * FRC_SR: normal mode
+ * SR_IE: no self-refresh interrupt
+ * DLL_RST_DIS: don't care, leave at reset value
+ * DQS_CFG: differential DQS signals
+ * ODT_CFG: assert ODT to internal IOs only during reads to DRAM
+ * LVWx_CFG: don't care, leave at reset value
+ * NUM_PR: 1 refresh will be issued at a time
+ * DM_CFG: don't care, leave at reset value
+ * D_INIT: no data initialization
+ */
+ ddr->sdram_cfg_2 = 0x04401000;
+
+ /* DDR SDRAM MODE 2
+ * MRS: Extended Mode Register 2
+ */
+ ddr->sdram_mode_2 = 0x8000C000;
+
+ /* DDR SDRAM CLK CNTL
+ * CLK_ADJUST: 1/2 Clock 0x02000000
+ * CLK_ADJUST: 5/8 Clock 0x02800000
+ */
+ ddr->sdram_clk_cntl = 0x02800000;
+
+ /* wait for clock stabilization */
+ asm ("sync;isync;msync");
+ udelay(1000);
+
+ /* DDR SDRAM CLK CNTL
+ * MEM_EN: enabled
+ * SREN: don't care, leave at reset value
+ * ECC_EN: no error report
+ * RD_EN: no register DIMMs
+ * SDRAM_TYPE: DDR2
+ * DYN_PWR: no power management
+ * 32_BE: don't care, leave at reset value
+ * 8_BE: 4 beat burst
+ * NCAP: don't care, leave at reset value
+ * 2T_EN: 1T Timing
+ * BA_INTLV_CTL: no interleaving
+ * x32_EN: x16 organization
+ * PCHB8: MA[10] for auto-precharge
+ * HSE: half strength for single and 2-layer stacks
+ * (full strength for 3- and 4-layer stacks no yet considered)
+ * MEM_HALT: no halt
+ * BI: automatic initialization
+ */
+ ddr->sdram_cfg = 0x83000008;
+ asm ("sync; isync; msync");
+ udelay(1000);
+
+#else /* !CONFIG_TQM8548 */
switch (casl) {
case 20:
cfg_ddr_timing1 = 0x47405331 | (3 << 16);
ddr->sdram_cfg = 0xc2000000; /* unbuffered,no DYN_PWR */
asm ("sync; isync; msync");
udelay (1000);
+#endif /* CONFIG_TQM8548 */
for (i = 0; i < N_DDR_CS_CONF; i++) {
ddr->cs0_config = ddr_cs_conf[i].reg;
if (get_ram_size (0, ddr_cs_conf[i].size) ==
ddr_cs_conf[i].size) {
/*
- * OK, size detected -> all done
+ * size detected -> set Chip Select Bounds Register
*/
- return ddr_cs_conf[i].size;
+ ddr->cs0_bnds = (ddr_cs_conf[i].size - 1) >> 24;
+
+ break;
}
}
- return 0; /* nothing found ! */
+#ifdef CONFIG_TQM8548
+ if (i < N_DDR_CS_CONF) {
+ /* Adjust refresh rate for DDR2 */
+
+ ddr->timing_cfg_3 = ddr_cs_conf[i].refresh & 0x00070000;
+
+ ddr->timing_cfg_1 = (ddr->timing_cfg_1 & 0xFFFF0FFF) |
+ (ddr_cs_conf[i].refresh & 0x0000F000);
+
+ return ddr_cs_conf[i].size;
+ }
+#endif /* CONFIG_TQM8548 */
+
+ /* return size if detected, else return 0 */
+ return (i < N_DDR_CS_CONF) ? ddr_cs_conf[i].size : 0;
}
void board_add_ram_info (int use_default)
}
}
-long int initdram (int board_type)
+phys_size_t initdram (int board_type)
{
long dram_size = 0;
int casl;
* This DLL-Override only used on TQM8540 and TQM8560
*/
{
- volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
+ volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
int i, x;
x = 10;
return dram_size;
}
-#if defined(CFG_DRAM_TEST)
+#if defined(CONFIG_SYS_DRAM_TEST)
int testdram (void)
{
- uint *pstart = (uint *) CFG_MEMTEST_START;
- uint *pend = (uint *) CFG_MEMTEST_END;
+ uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
+ uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
uint *p;
printf ("SDRAM test phase 1:\n");
projects / karo-tx-uboot.git / blobdiff