/*
* cpu/ppc4xx/44x_spd_ddr2.c
* This SPD SDRAM detection code supports AMCC PPC44x cpu's with a
- * DDR2 controller (non Denali Core). Those are 440SP/SPe.
+ * DDR2 controller (non Denali Core). Those currently are:
*
+ * 405: 405EX(r)
+ * 440/460: 440SP/440SPe/460EX/460GT
+ *
+ * Copyright (c) 2008 Nuovation System Designs, LLC
+ * Grant Erickson <gerickson@nuovations.com>
+
* (C) Copyright 2007-2008
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/mmu.h>
+#include <asm/cache.h>
+
+#include "ecc.h"
+
+#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR2)
+
+#define PPC4xx_IBM_DDR2_DUMP_REGISTER(mnemonic) \
+ do { \
+ u32 data; \
+ mfsdram(SDRAM_##mnemonic, data); \
+ printf("%20s[%02x] = 0x%08X\n", \
+ "SDRAM_" #mnemonic, SDRAM_##mnemonic, data); \
+ } while (0)
+
+static inline void ppc4xx_ibm_ddr2_register_dump(void);
-#if defined(CONFIG_SPD_EEPROM) && \
- (defined(CONFIG_440SP) || defined(CONFIG_440SPE))
+#if defined(CONFIG_SPD_EEPROM)
/*-----------------------------------------------------------------------------+
* Defines
#endif
/*
+ * Newer PPC's like 440SPe, 460EX/GT can be equipped with more than 2GB of SDRAM.
+ * To support such configurations, we "only" map the first 2GB via the TLB's. We
+ * need some free virtual address space for the remaining peripherals like, SoC
+ * devices, FLASH etc.
+ *
+ * Note that ECC is currently not supported on configurations with more than 2GB
+ * SDRAM. This is because we only map the first 2GB on such systems, and therefore
+ * the ECC parity byte of the remaining area can't be written.
+ */
+#ifndef CONFIG_MAX_MEM_MAPPED
+#define CONFIG_MAX_MEM_MAPPED ((phys_size_t)2 << 30)
+#endif
+
+/*
* Board-specific Platform code can reimplement spd_ddr_init_hang () if needed
*/
void __spd_ddr_init_hang (void)
/*-----------------------------------------------------------------------------+
* Prototypes
*-----------------------------------------------------------------------------*/
-static unsigned long sdram_memsize(void);
+static phys_size_t sdram_memsize(void);
static void get_spd_info(unsigned long *dimm_populated,
unsigned char *iic0_dimm_addr,
unsigned long num_dimm_banks);
#else
static void DQS_calibration_process(void);
#endif
-static void ppc440sp_sdram_register_dump(void);
int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
void dcbz_area(u32 start_address, u32 num_bytes);
-void dflush(void);
static u32 mfdcr_any(u32 dcr)
{
/*-----------------------------------------------------------------------------+
* sdram_memsize
*-----------------------------------------------------------------------------*/
-static unsigned long sdram_memsize(void)
+static phys_size_t sdram_memsize(void)
{
- unsigned long mem_size;
+ phys_size_t mem_size;
unsigned long mcopt2;
unsigned long mcstat;
unsigned long mb0cf;
mem_size+=4096;
break;
default:
+ printf("WARNING: Unsupported bank size (SDSZ=0x%lx)!\n"
+ , sdsz);
mem_size=0;
break;
}
}
}
- mem_size *= 1024 * 1024;
- return(mem_size);
+ return mem_size << 20;
}
/*-----------------------------------------------------------------------------+
* banks appropriately. If Auto Memory Configuration is
* not used, it is assumed that no DIMM is plugged
*-----------------------------------------------------------------------------*/
-long int initdram(int board_type)
+phys_size_t initdram(int board_type)
{
unsigned char iic0_dimm_addr[] = SPD_EEPROM_ADDRESS;
unsigned char spd0[MAX_SPD_BYTES];
unsigned char spd1[MAX_SPD_BYTES];
unsigned char *dimm_spd[MAXDIMMS];
unsigned long dimm_populated[MAXDIMMS];
- unsigned long num_dimm_banks; /* on board dimm banks */
+ unsigned long num_dimm_banks; /* on board dimm banks */
unsigned long val;
- ddr_cas_id_t selected_cas;
+ ddr_cas_id_t selected_cas = DDR_CAS_5; /* preset to silence compiler */
int write_recovery;
- unsigned long dram_size = 0;
+ phys_size_t dram_size = 0;
num_dimm_banks = sizeof(iic0_dimm_addr);
/* get installed memory size */
dram_size = sdram_memsize();
+ /*
+ * Limit size to 2GB
+ */
+ if (dram_size > CONFIG_MAX_MEM_MAPPED)
+ dram_size = CONFIG_MAX_MEM_MAPPED;
+
/* and program tlb entries for this size (dynamic) */
/*
remove_tlb(0, dram_size);
program_tlb(0, 0, dram_size, MY_TLB_WORD2_I_ENABLE);
- ppc440sp_sdram_register_dump();
+ ppc4xx_ibm_ddr2_register_dump();
+
+ /*
+ * Clear potential errors resulting from auto-calibration.
+ * If not done, then we could get an interrupt later on when
+ * exceptions are enabled.
+ */
+ set_mcsr(get_mcsr());
- return dram_size;
+ return sdram_memsize();
}
static void get_spd_info(unsigned long *dimm_populated,
if (dimm_rank > MAXRANKS) {
- printf("ERROR: DRAM DIMM detected with %d ranks in "
- "slot %d is not supported.\n", dimm_rank, dimm_num);
+ printf("ERROR: DRAM DIMM detected with %lu ranks in "
+ "slot %lu is not supported.\n", dimm_rank, dimm_num);
printf("Only %d ranks are supported for all DIMM.\n", MAXRANKS);
printf("Replace the DIMM module with a supported DIMM.\n\n");
spd_ddr_init_hang ();
dimm_32bit = TRUE;
break;
default:
- printf("WARNING: Detected a DIMM with a data width of %d bits.\n",
+ printf("WARNING: Detected a DIMM with a data width of %lu bits.\n",
data_width);
printf("Only DIMMs with 32 or 64 bit DDR-SDRAM widths are supported.\n");
break;
if (dimm_type == SDRAM_DDR2) {
codt |= SDRAM_CODT_DQS_1_8_V_DDR2;
if ((total_dimm == 1) && (firstSlot == TRUE)) {
- if (total_rank == 1) {
+ if (total_rank == 1) { /* PUUU */
codt |= CALC_ODT_R(0);
modt0 = CALC_ODT_W(0);
modt1 = 0x00000000;
modt2 = 0x00000000;
modt3 = 0x00000000;
}
- if (total_rank == 2) {
+ if (total_rank == 2) { /* PPUU */
codt |= CALC_ODT_R(0) | CALC_ODT_R(1);
- modt0 = CALC_ODT_W(0);
- modt1 = CALC_ODT_W(0);
+ modt0 = CALC_ODT_W(0) | CALC_ODT_W(1);
+ modt1 = 0x00000000;
modt2 = 0x00000000;
modt3 = 0x00000000;
}
} else if ((total_dimm == 1) && (firstSlot != TRUE)) {
- if (total_rank == 1) {
+ if (total_rank == 1) { /* UUPU */
codt |= CALC_ODT_R(2);
modt0 = 0x00000000;
modt1 = 0x00000000;
modt2 = CALC_ODT_W(2);
modt3 = 0x00000000;
}
- if (total_rank == 2) {
+ if (total_rank == 2) { /* UUPP */
codt |= CALC_ODT_R(2) | CALC_ODT_R(3);
modt0 = 0x00000000;
modt1 = 0x00000000;
- modt2 = CALC_ODT_W(2);
- modt3 = CALC_ODT_W(2);
+ modt2 = CALC_ODT_W(2) | CALC_ODT_W(3);
+ modt3 = 0x00000000;
}
}
if (total_dimm == 2) {
- if (total_rank == 2) {
+ if (total_rank == 2) { /* PUPU */
codt |= CALC_ODT_R(0) | CALC_ODT_R(2);
modt0 = CALC_ODT_RW(2);
modt1 = 0x00000000;
modt2 = CALC_ODT_RW(0);
modt3 = 0x00000000;
}
- if (total_rank == 4) {
+ if (total_rank == 4) { /* PPPP */
codt |= CALC_ODT_R(0) | CALC_ODT_R(1) |
CALC_ODT_R(2) | CALC_ODT_R(3);
- modt0 = CALC_ODT_RW(2);
+ modt0 = CALC_ODT_RW(2) | CALC_ODT_RW(3);
modt1 = 0x00000000;
- modt2 = CALC_ODT_RW(0);
+ modt2 = CALC_ODT_RW(0) | CALC_ODT_RW(1);
modt3 = 0x00000000;
}
}
printf("Make sure the PLB speed is within the supported range of the DIMMs.\n");
printf("cas3=%d cas4=%d cas5=%d\n",
cas_3_0_available, cas_4_0_available, cas_5_0_available);
- printf("sdram_freq=%d cycle3=%d cycle4=%d cycle5=%d\n\n",
+ printf("sdram_freq=%lu cycle3=%lu cycle4=%lu cycle5=%lu\n\n",
sdram_freq, cycle_3_0_clk, cycle_4_0_clk, cycle_5_0_clk);
spd_ddr_init_hang ();
}
if (num_banks == 4)
ind = 0;
else
- ind = 5;
+ ind = 5 << 8;
switch (num_col_addr) {
case 0x08:
mode |= (SDRAM_BXCF_M_AM_0 + ind);
unsigned long num_dimm_banks)
{
unsigned long dimm_num;
- unsigned long rank_base_addr;
+ phys_size_t rank_base_addr;
unsigned long rank_reg;
- unsigned long rank_size_bytes;
+ phys_size_t rank_size_bytes;
unsigned long rank_size_id;
unsigned long num_ranks;
unsigned long baseadd_size;
unsigned long i;
unsigned long bank_0_populated = 0;
+ phys_size_t total_size = 0;
/*------------------------------------------------------------------
* Reset the rank_base_address.
* Set the sizes
*-----------------------------------------------------------------*/
baseadd_size = 0;
- rank_size_bytes = 4 * 1024 * 1024 * rank_size_id;
switch (rank_size_id) {
+ case 0x01:
+ baseadd_size |= SDRAM_RXBAS_SDSZ_1024;
+ total_size = 1024;
+ break;
case 0x02:
- baseadd_size |= SDRAM_RXBAS_SDSZ_8;
+ baseadd_size |= SDRAM_RXBAS_SDSZ_2048;
+ total_size = 2048;
break;
case 0x04:
- baseadd_size |= SDRAM_RXBAS_SDSZ_16;
+ baseadd_size |= SDRAM_RXBAS_SDSZ_4096;
+ total_size = 4096;
break;
case 0x08:
baseadd_size |= SDRAM_RXBAS_SDSZ_32;
+ total_size = 32;
break;
case 0x10:
baseadd_size |= SDRAM_RXBAS_SDSZ_64;
+ total_size = 64;
break;
case 0x20:
baseadd_size |= SDRAM_RXBAS_SDSZ_128;
+ total_size = 128;
break;
case 0x40:
baseadd_size |= SDRAM_RXBAS_SDSZ_256;
+ total_size = 256;
break;
case 0x80:
baseadd_size |= SDRAM_RXBAS_SDSZ_512;
+ total_size = 512;
break;
default:
printf("DDR-SDRAM: DIMM %d memory queue configuration.\n",
printf("Replace the DIMM module with a supported DIMM.\n\n");
spd_ddr_init_hang ();
}
+ rank_size_bytes = total_size << 20;
if ((dimm_populated[dimm_num] != SDRAM_NONE) && (dimm_num == 1))
bank_0_populated = 1;
}
}
}
+
+#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
+ /*
+ * Enable high bandwidth access on 460EX/GT.
+ * This should/could probably be done on other
+ * PPC's too, like 440SPe.
+ * This is currently not used, but with this setup
+ * it is possible to use it later on in e.g. the Linux
+ * EMAC driver for performance gain.
+ */
+ mtdcr(SDRAM_PLBADDULL, 0x00000000); /* MQ0_BAUL */
+ mtdcr(SDRAM_PLBADDUHB, 0x00000008); /* MQ0_BAUH */
+#endif
}
/*-----------------------------------------------------------------------------+
if (ecc == 0)
return;
+ if (sdram_memsize() > CONFIG_MAX_MEM_MAPPED) {
+ printf("\nWarning: Can't enable ECC on systems with more than 2GB of SDRAM!\n");
+ return;
+ }
+
mfsdram(SDRAM_MCOPT1, mcopt1);
mfsdram(SDRAM_MCOPT2, mcopt2);
} else {
/* ECC bit set method for cached memory */
dcbz_area(start_address, num_bytes);
- dflush();
+ /* Write modified dcache lines back to memory */
+ clean_dcache_range(start_address, start_address + num_bytes);
}
blank_string(strlen(str));
u32 bxcf;
int i;
int j;
+ phys_size_t base_addr;
u32 test[NUMMEMTESTS][NUMMEMWORDS] = {
{0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF,
0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF},
if ((bxcf & SDRAM_BXCF_M_BE_MASK) == SDRAM_BXCF_M_BE_ENABLE) {
/* Bank is enabled */
+ /*
+ * Only run test on accessable memory (below 2GB)
+ */
+ base_addr = SDRAM_RXBAS_SDBA_DECODE(mfdcr_any(SDRAM_R0BAS+bxcr_num));
+ if (base_addr >= CONFIG_MAX_MEM_MAPPED)
+ continue;
+
/*------------------------------------------------------------------
* Run the short memory test.
*-----------------------------------------------------------------*/
- membase = (u32 *)(SDRAM_RXBAS_SDBA_DECODE(mfdcr_any(SDRAM_R0BAS+bxcr_num)));
+ membase = (u32 *)(u32)base_addr;
for (i = 0; i < NUMMEMTESTS; i++) {
for (j = 0; j < NUMMEMWORDS; j++) {
printf("\nERROR: Cannot determine a common read delay for the "
"DIMM(s) installed.\n");
debug("%s[%d] ERROR : \n", __FUNCTION__,__LINE__);
- ppc440sp_sdram_register_dump();
+ ppc4xx_ibm_ddr2_register_dump();
spd_ddr_init_hang ();
}
}
#endif
-#if defined(DEBUG)
-static void ppc440sp_sdram_register_dump(void)
+#else /* CONFIG_SPD_EEPROM */
+
+/*-----------------------------------------------------------------------------
+ * Function: initdram
+ * Description: Configures the PPC405EX(r) DDR1/DDR2 SDRAM memory
+ * banks. The configuration is performed using static, compile-
+ * time parameters.
+ *---------------------------------------------------------------------------*/
+phys_size_t initdram(int board_type)
{
- unsigned int sdram_reg;
- unsigned int sdram_data;
- unsigned int dcr_data;
-
- printf("\n Register Dump:\n");
- sdram_reg = SDRAM_MCSTAT;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MCSTAT = 0x%08X", sdram_data);
- sdram_reg = SDRAM_MCOPT1;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MCOPT1 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_MCOPT2;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MCOPT2 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_MODT0;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MODT0 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_MODT1;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MODT1 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_MODT2;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MODT2 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_MODT3;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MODT3 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_CODT;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_CODT = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_VVPR;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_VVPR = 0x%08X", sdram_data);
- sdram_reg = SDRAM_OPARS;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_OPARS = 0x%08X\n", sdram_data);
/*
- * OPAR2 is only used as a trigger register.
- * No data is contained in this register, and reading or writing
- * to is can cause bad things to happen (hangs). Just skip it
- * and report NA
- * sdram_reg = SDRAM_OPAR2;
- * mfsdram(sdram_reg, sdram_data);
- * printf(" SDRAM_OPAR2 = 0x%08X\n", sdram_data);
+ * Only run this SDRAM init code once. For NAND booting
+ * targets like Kilauea, we call initdram() early from the
+ * 4k NAND booting image (CONFIG_NAND_SPL) from nand_boot().
+ * Later on the NAND U-Boot image runs (CONFIG_NAND_U_BOOT)
+ * which calls initdram() again. This time the controller
+ * mustn't be reconfigured again since we're already running
+ * from SDRAM.
*/
- printf(" SDRAM_OPART = N/A ");
- sdram_reg = SDRAM_RTR;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_RTR = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_MB0CF;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MB0CF = 0x%08X", sdram_data);
- sdram_reg = SDRAM_MB1CF;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MB1CF = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_MB2CF;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MB2CF = 0x%08X", sdram_data);
- sdram_reg = SDRAM_MB3CF;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MB3CF = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR0;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR0 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR1;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR1 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR2;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR2 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR3;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR3 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR4;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR4 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR5;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR5 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR6;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR6 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR7;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR7 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR8;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR8 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR9;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR9 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR10;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR10 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR11;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR11 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR12;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR12 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR13;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR13 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR14;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR14 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR15;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR15 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_RQDC;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_RQDC = 0x%08X", sdram_data);
- sdram_reg = SDRAM_RFDC;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_RFDC = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_RDCC;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_RDCC = 0x%08X", sdram_data);
- sdram_reg = SDRAM_DLCR;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_DLCR = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_CLKTR;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_CLKTR = 0x%08X", sdram_data);
- sdram_reg = SDRAM_WRDTR;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_WRDTR = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_SDTR1;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_SDTR1 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_SDTR2;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_SDTR2 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_SDTR3;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_SDTR3 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_MMODE;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MMODE = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_MEMODE;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MEMODE = 0x%08X", sdram_data);
- sdram_reg = SDRAM_ECCCR;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_ECCCR = 0x%08X\n\n", sdram_data);
-
- dcr_data = mfdcr(SDRAM_R0BAS);
- printf(" MQ0_B0BAS = 0x%08X", dcr_data);
- dcr_data = mfdcr(SDRAM_R1BAS);
- printf(" MQ1_B0BAS = 0x%08X\n", dcr_data);
- dcr_data = mfdcr(SDRAM_R2BAS);
- printf(" MQ2_B0BAS = 0x%08X", dcr_data);
- dcr_data = mfdcr(SDRAM_R3BAS);
- printf(" MQ3_B0BAS = 0x%08X\n", dcr_data);
+#if !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
+ unsigned long val;
+
+ /* Set Memory Bank Configuration Registers */
+
+ mtsdram(SDRAM_MB0CF, CFG_SDRAM0_MB0CF);
+ mtsdram(SDRAM_MB1CF, CFG_SDRAM0_MB1CF);
+ mtsdram(SDRAM_MB2CF, CFG_SDRAM0_MB2CF);
+ mtsdram(SDRAM_MB3CF, CFG_SDRAM0_MB3CF);
+
+ /* Set Memory Clock Timing Register */
+
+ mtsdram(SDRAM_CLKTR, CFG_SDRAM0_CLKTR);
+
+ /* Set Refresh Time Register */
+
+ mtsdram(SDRAM_RTR, CFG_SDRAM0_RTR);
+
+ /* Set SDRAM Timing Registers */
+
+ mtsdram(SDRAM_SDTR1, CFG_SDRAM0_SDTR1);
+ mtsdram(SDRAM_SDTR2, CFG_SDRAM0_SDTR2);
+ mtsdram(SDRAM_SDTR3, CFG_SDRAM0_SDTR3);
+
+ /* Set Mode and Extended Mode Registers */
+
+ mtsdram(SDRAM_MMODE, CFG_SDRAM0_MMODE);
+ mtsdram(SDRAM_MEMODE, CFG_SDRAM0_MEMODE);
+
+ /* Set Memory Controller Options 1 Register */
+
+ mtsdram(SDRAM_MCOPT1, CFG_SDRAM0_MCOPT1);
+
+ /* Set Manual Initialization Control Registers */
+
+ mtsdram(SDRAM_INITPLR0, CFG_SDRAM0_INITPLR0);
+ mtsdram(SDRAM_INITPLR1, CFG_SDRAM0_INITPLR1);
+ mtsdram(SDRAM_INITPLR2, CFG_SDRAM0_INITPLR2);
+ mtsdram(SDRAM_INITPLR3, CFG_SDRAM0_INITPLR3);
+ mtsdram(SDRAM_INITPLR4, CFG_SDRAM0_INITPLR4);
+ mtsdram(SDRAM_INITPLR5, CFG_SDRAM0_INITPLR5);
+ mtsdram(SDRAM_INITPLR6, CFG_SDRAM0_INITPLR6);
+ mtsdram(SDRAM_INITPLR7, CFG_SDRAM0_INITPLR7);
+ mtsdram(SDRAM_INITPLR8, CFG_SDRAM0_INITPLR8);
+ mtsdram(SDRAM_INITPLR9, CFG_SDRAM0_INITPLR9);
+ mtsdram(SDRAM_INITPLR10, CFG_SDRAM0_INITPLR10);
+ mtsdram(SDRAM_INITPLR11, CFG_SDRAM0_INITPLR11);
+ mtsdram(SDRAM_INITPLR12, CFG_SDRAM0_INITPLR12);
+ mtsdram(SDRAM_INITPLR13, CFG_SDRAM0_INITPLR13);
+ mtsdram(SDRAM_INITPLR14, CFG_SDRAM0_INITPLR14);
+ mtsdram(SDRAM_INITPLR15, CFG_SDRAM0_INITPLR15);
+
+ /* Set On-Die Termination Registers */
+
+ mtsdram(SDRAM_CODT, CFG_SDRAM0_CODT);
+ mtsdram(SDRAM_MODT0, CFG_SDRAM0_MODT0);
+ mtsdram(SDRAM_MODT1, CFG_SDRAM0_MODT1);
+
+ /* Set Write Timing Register */
+
+ mtsdram(SDRAM_WRDTR, CFG_SDRAM0_WRDTR);
+
+ /*
+ * Start Initialization by SDRAM0_MCOPT2[SREN] = 0 and
+ * SDRAM0_MCOPT2[IPTR] = 1
+ */
+
+ mtsdram(SDRAM_MCOPT2, (SDRAM_MCOPT2_SREN_EXIT |
+ SDRAM_MCOPT2_IPTR_EXECUTE));
+
+ /*
+ * Poll SDRAM0_MCSTAT[MIC] for assertion to indicate the
+ * completion of initialization.
+ */
+
+ do {
+ mfsdram(SDRAM_MCSTAT, val);
+ } while ((val & SDRAM_MCSTAT_MIC_MASK) != SDRAM_MCSTAT_MIC_COMP);
+
+ /* Set Delay Control Registers */
+
+ mtsdram(SDRAM_DLCR, CFG_SDRAM0_DLCR);
+ mtsdram(SDRAM_RDCC, CFG_SDRAM0_RDCC);
+ mtsdram(SDRAM_RQDC, CFG_SDRAM0_RQDC);
+ mtsdram(SDRAM_RFDC, CFG_SDRAM0_RFDC);
+
+ /*
+ * Enable Controller by SDRAM0_MCOPT2[DCEN] = 1:
+ */
+
+ mfsdram(SDRAM_MCOPT2, val);
+ mtsdram(SDRAM_MCOPT2, val | SDRAM_MCOPT2_DCEN_ENABLE);
+
+#if defined(CONFIG_DDR_ECC)
+ ecc_init(CFG_SDRAM_BASE, CFG_MBYTES_SDRAM << 20);
+#endif /* defined(CONFIG_DDR_ECC) */
+
+ ppc4xx_ibm_ddr2_register_dump();
+#endif /* !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL) */
+
+ return (CFG_MBYTES_SDRAM << 20);
}
-#else
-static void ppc440sp_sdram_register_dump(void)
+#endif /* CONFIG_SPD_EEPROM */
+
+static inline void ppc4xx_ibm_ddr2_register_dump(void)
{
+#if defined(DEBUG)
+ printf("\nPPC4xx IBM DDR2 Register Dump:\n");
+
+#if (defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
+ defined(CONFIG_460EX) || defined(CONFIG_460GT))
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(R0BAS);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(R1BAS);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(R2BAS);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(R3BAS);
+#endif /* (defined(CONFIG_440SP) || ... */
+#if defined(CONFIG_405EX)
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(BESR);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(BEARL);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(BEARH);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(WMIRQ);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(PLBOPT);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(PUABA);
+#endif /* defined(CONFIG_405EX) */
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(MB0CF);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(MB1CF);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(MB2CF);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(MB3CF);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(MCSTAT);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(MCOPT1);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(MCOPT2);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(MODT0);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(MODT1);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(MODT2);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(MODT3);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(CODT);
+#if (defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
+ defined(CONFIG_460EX) || defined(CONFIG_460GT))
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(VVPR);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(OPARS);
+ /*
+ * OPART is only used as a trigger register.
+ *
+ * No data is contained in this register, and reading or writing
+ * to is can cause bad things to happen (hangs). Just skip it and
+ * report "N/A".
+ */
+ printf("%20s = N/A\n", "SDRAM_OPART");
+#endif /* defined(CONFIG_440SP) || ... */
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(RTR);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR0);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR1);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR2);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR3);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR4);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR5);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR6);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR7);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR8);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR9);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR10);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR11);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR12);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR13);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR14);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(INITPLR15);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(RQDC);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(RFDC);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(RDCC);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(DLCR);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(CLKTR);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(WRDTR);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(SDTR1);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(SDTR2);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(SDTR3);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(MMODE);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(MEMODE);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(ECCCR);
+#if (defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
+ defined(CONFIG_460EX) || defined(CONFIG_460GT))
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(CID);
+#endif /* defined(CONFIG_440SP) || ... */
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(RID);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(FCSR);
+ PPC4xx_IBM_DDR2_DUMP_REGISTER(RTSR);
+#endif /* defined(DEBUG) */
}
-#endif
-#endif /* CONFIG_SPD_EEPROM */
+
+#endif /* CONFIG_SDRAM_PPC4xx_IBM_DDR2 */
projects / platform / kernel / u-boot.git / blobdiff