/*
- * (C) Copyright 2006 Freescale Semiconductor, Inc.
+ * (C) Copyright 2006-2007 Freescale Semiconductor, Inc.
*
* (C) Copyright 2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#include <asm/mmu.h>
#include <spd_sdram.h>
-#ifdef CONFIG_SPD_EEPROM
-
DECLARE_GLOBAL_DATA_PTR;
+void board_add_ram_info(int use_default)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile ddr83xx_t *ddr = &immap->ddr;
+ char buf[32];
+
+ printf(" (DDR%d", ((ddr->sdram_cfg & SDRAM_CFG_SDRAM_TYPE_MASK)
+ >> SDRAM_CFG_SDRAM_TYPE_SHIFT) - 1);
+
+ if (ddr->sdram_cfg & SDRAM_CFG_32_BE)
+ puts(", 32-bit");
+ else
+ puts(", 64-bit");
+
+ if (ddr->sdram_cfg & SDRAM_CFG_ECC_EN)
+ puts(", ECC on");
+ else
+ puts(", ECC off");
+
+ printf(", %s MHz)", strmhz(buf, gd->mem_clk));
+
+#if defined(CFG_LB_SDRAM) && defined(CFG_LBC_SDRAM_SIZE)
+ puts("\nSDRAM: ");
+ print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, " (local bus)");
+#endif
+}
+
+#ifdef CONFIG_SPD_EEPROM
+
#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC)
extern void dma_init(void);
extern uint dma_check(void);
int
picos_to_clk(int picos)
{
- unsigned int ddr_bus_clk;
+ unsigned int mem_bus_clk;
int clks;
- ddr_bus_clk = gd->ddr_clk >> 1;
- clks = picos / (1000000000 / (ddr_bus_clk / 1000));
- if (picos % (1000000000 / (ddr_bus_clk / 1000)) != 0)
+ mem_bus_clk = gd->mem_clk >> 1;
+ clks = picos / (1000000000 / (mem_bus_clk / 1000));
+ if (picos % (1000000000 / (mem_bus_clk / 1000)) != 0)
clks++;
return clks;
unsigned int n_ranks;
unsigned int odt_rd_cfg, odt_wr_cfg;
unsigned char twr_clk, twtr_clk;
- unsigned char sdram_type;
+ unsigned int sdram_type;
unsigned int memsize;
unsigned int law_size;
unsigned char caslat, caslat_ctrl;
#endif
/* Check the memory type */
if (spd.mem_type != SPD_MEMTYPE_DDR && spd.mem_type != SPD_MEMTYPE_DDR2) {
- printf("DDR: Module mem type is %02X\n", spd.mem_type);
+ debug("DDR: Module mem type is %02X\n", spd.mem_type);
return 0;
}
if(spd.mem_type == SPD_MEMTYPE_DDR2) {
immap->sysconf.ddrcdr = CFG_DDRCDR_VALUE;
}
+ udelay(50000);
#endif
/*
debug("DDR:Module maximum data rate is: %dMhz\n", max_data_rate);
- ddrc_clk = gd->ddr_clk / 1000000;
+ ddrc_clk = gd->mem_clk / 1000000;
effective_data_rate = 0;
if (max_data_rate >= 390 && max_data_rate < 460) { /* it is DDR 400 */
ddr->timing_cfg_1 =
(((picos_to_clk(spd.trp * 250) & 0x07) << 28 ) | /* PRETOACT */
((picos_to_clk(spd.tras * 1000) & 0x0f ) << 24 ) | /* ACTTOPRE */
- (trcd_clk << 20 ) | /* ACTTORW */
+ (trcd_clk << 20 ) | /* ACTTORW */
(caslat_ctrl << 16 ) | /* CASLAT */
(trfc_low << 12 ) | /* REFEC */
((twr_clk & 0x07) << 8) | /* WRRREC */
*/
cpo = 0;
if (spd.mem_type == SPD_MEMTYPE_DDR2) {
- if (effective_data_rate == 266 || effective_data_rate == 333) {
+ if (effective_data_rate == 266) {
+ cpo = 0x4; /* READ_LAT + 1/2 */
+ } else if (effective_data_rate == 333 || effective_data_rate == 400) {
cpo = 0x7; /* READ_LAT + 5/4 */
- } else if (effective_data_rate == 400) {
- cpo = 0x9; /* READ_LAT + 7/4 */
} else {
/* Automatic calibration */
cpo = 0x1f;
debug("DDR:timing_cfg_2=0x%08x\n", ddr->timing_cfg_2);
/* Check DIMM data bus width */
- if (spd.dataw_lsb == 0x20) {
+ if (spd.dataw_lsb < 64) {
if (spd.mem_type == SPD_MEMTYPE_DDR)
burstlen = 0x03; /* 32 bit data bus, burst len is 8 */
else
burstlen = 0x02; /* 32 bit data bus, burst len is 4 */
- printf("\n DDR DIMM: data bus width is 32 bit");
+ debug("\n DDR DIMM: data bus width is 32 bit");
} else {
burstlen = 0x02; /* Others act as 64 bit bus, burst len is 4 */
- printf("\n DDR DIMM: data bus width is 64 bit");
+ debug("\n DDR DIMM: data bus width is 64 bit");
}
/* Is this an ECC DDR chip? */
if (spd.config == 0x02)
- printf(" with ECC\n");
+ debug(" with ECC\n");
else
- printf(" without ECC\n");
+ debug(" without ECC\n");
/* Burst length is always 4 for 64 bit data bus, 8 for 32 bit data bus,
Burst type is sequential
* SDRAM Cfg 2
*/
odt_cfg = 0;
+#ifndef CONFIG_NEVER_ASSERT_ODT_TO_CPU
if (odt_rd_cfg | odt_wr_cfg) {
odt_cfg = 0x2; /* ODT to IOs during reads */
}
+#endif
if (spd.mem_type == SPD_MEMTYPE_DDR2) {
ddr->sdram_cfg2 = (0
| (0 << 26) /* True DQS */
* sdram_cfg[13] = 0 (8_BE =0, 4-beat bursts)
*/
if (spd.mem_type == SPD_MEMTYPE_DDR)
- sdram_type = 2;
+ sdram_type = SDRAM_CFG_SDRAM_TYPE_DDR1;
else
- sdram_type = 3;
+ sdram_type = SDRAM_CFG_SDRAM_TYPE_DDR2;
sdram_cfg = (0
- | (1 << 31) /* DDR enable */
- | (1 << 30) /* Self refresh */
- | (sdram_type << 24) /* SDRAM type */
+ | SDRAM_CFG_MEM_EN /* DDR enable */
+ | SDRAM_CFG_SREN /* Self refresh */
+ | sdram_type /* SDRAM type */
);
/* sdram_cfg[3] = RD_EN - registered DIMM enable */
if (spd.mod_attr & 0x02)
- sdram_cfg |= 0x10000000;
+ sdram_cfg |= SDRAM_CFG_RD_EN;
/* The DIMM is 32bit width */
- if (spd.dataw_lsb == 0x20) {
+ if (spd.dataw_lsb < 64) {
if (spd.mem_type == SPD_MEMTYPE_DDR)
- sdram_cfg |= 0x000C0000;
+ sdram_cfg |= SDRAM_CFG_32_BE | SDRAM_CFG_8_BE;
if (spd.mem_type == SPD_MEMTYPE_DDR2)
- sdram_cfg |= 0x00080000;
+ sdram_cfg |= SDRAM_CFG_32_BE;
}
ddrc_ecc_enable = 0;
debug("DDR:err_disable=0x%08x\n", ddr->err_disable);
debug("DDR:err_sbe=0x%08x\n", ddr->err_sbe);
#endif
- printf(" DDRC ECC mode: %s\n", ddrc_ecc_enable ? "ON":"OFF");
+ debug(" DDRC ECC mode: %s\n", ddrc_ecc_enable ? "ON":"OFF");
#if defined(CONFIG_DDR_2T_TIMING)
/*
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