phys_size_t initdram(int board_type)
{
volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
u32 msize = 0;
if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
return -1;
#if defined(CONFIG_SPD_EEPROM)
msize = spd_sdram();
#else
msize = fixed_sdram();
#endif
#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
/* Initialize DDR ECC byte */
ddr_enable_ecc(msize * 1024 * 1024);
#endif
/* return total bus DDR size(bytes) */
return (msize * 1024 * 1024);
}
phys_size_t initdram(int board_type)
{
immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
u32 msize = 0;
if ((in_be32(&im->sysconf.immrbar) & IMMRBAR_BASE_ADDR) != (u32)im)
return -1;
out_be32(&im->sysconf.ddrlaw[0].bar,
CONFIG_SYS_DDR_BASE & LAWBAR_BAR);
msize = fixed_sdram();
#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
/*
* Initialize DDR ECC byte
*/
ddr_enable_ecc(msize * 1024 * 1024);
#endif
/* return total bus SDRAM size(bytes) -- DDR */
return msize * 1024 * 1024;
}
phys_size_t initdram(int board_type)
{
volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
volatile fsl_lbus_t *lbc= &im->lbus;
u32 msize;
if ((__raw_readl(&im->sysconf.immrbar) & IMMRBAR_BASE_ADDR) != (u32) im)
return -1;
/* DDR SDRAM - Main SODIMM */
__raw_writel(CONFIG_SYS_DDR_BASE & LAWBAR_BAR, &im->sysconf.ddrlaw[0].bar);
msize = fixed_sdram();
/* Local Bus setup lbcr and mrtpr */
__raw_writel(CONFIG_SYS_LBC_LBCR, &lbc->lbcr);
__raw_writel(CONFIG_SYS_LBC_MRTPR, &lbc->mrtpr);
sync();
/* return total bus SDRAM size(bytes) -- DDR */
return (msize * 1024 * 1024);
}
int dram_init(void)
{
immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
u32 msize = 0;
if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
return -ENXIO;
#if defined(CONFIG_SPD_EEPROM)
msize = spd_sdram();
#else
msize = fixed_sdram();
#endif
#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
/* Initialize DDR ECC byte */
ddr_enable_ecc(msize * 1024 * 1024);
#endif
/* return total bus DDR size(bytes) */
gd->ram_size = msize * 1024 * 1024;
return 0;
}
phys_size_t initdram(int board_type)
{
return fixed_sdram(NULL, sdram_init_seq, ARRAY_SIZE(sdram_init_seq));
}
phys_size_t initdram (int board_type)
{
long dram_size = 0;
#if !defined(CONFIG_RAM_AS_FLASH)
volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
sys_info_t sysinfo;
uint temp_lbcdll = 0;
#endif
#if !defined(CONFIG_RAM_AS_FLASH) || defined(CONFIG_DDR_DLL)
volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
#endif
#if defined(CONFIG_DDR_DLL)
uint temp_ddrdll = 0;
/* Work around to stabilize DDR DLL */
temp_ddrdll = gur->ddrdllcr;
gur->ddrdllcr = ((temp_ddrdll & 0xff) << 16) | 0x80000000;
asm("sync;isync;msync");
#endif
#if defined(CONFIG_SPD_EEPROM)
dram_size = fsl_ddr_sdram();
dram_size = setup_ddr_tlbs(dram_size / 0x100000);
dram_size *= 0x100000;
#else
dram_size = fixed_sdram ();
#endif
#if defined(CONFIG_SYS_RAMBOOT)
return dram_size;
#endif
#if !defined(CONFIG_RAM_AS_FLASH) /* LocalBus is not emulating flash */
get_sys_info(&sysinfo);
/* if localbus freq is less than 66MHz,we use bypass mode,otherwise use DLL */
if(sysinfo.freqSystemBus/(CONFIG_SYS_LBC_LCRR & LCRR_CLKDIV) < 66000000) {
lbc->lcrr = (CONFIG_SYS_LBC_LCRR & 0x0fffffff)| 0x80000000;
} else {
lbc->lcrr = CONFIG_SYS_LBC_LCRR & 0x7fffffff;
udelay(200);
temp_lbcdll = gur->lbcdllcr;
gur->lbcdllcr = ((temp_lbcdll & 0xff) << 16 ) | 0x80000000;
asm("sync;isync;msync");
}
lbc->or2 = CONFIG_SYS_OR2_PRELIM; /* 64MB SDRAM */
lbc->br2 = CONFIG_SYS_BR2_PRELIM;
lbc->lbcr = CONFIG_SYS_LBC_LBCR;
lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_1;
asm("sync");
* (ulong *)0 = 0x000000ff;
lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_2;
asm("sync");
* (ulong *)0 = 0x000000ff;
lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_3;
asm("sync");
* (ulong *)0 = 0x000000ff;
lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_4;
asm("sync");
* (ulong *)0 = 0x000000ff;
lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_5;
asm("sync");
lbc->lsrt = CONFIG_SYS_LBC_LSRT;
asm("sync");
lbc->mrtpr = CONFIG_SYS_LBC_MRTPR;
asm("sync");
#endif
#if defined(CONFIG_DDR_ECC)
{
/* Initialize all of memory for ECC, then
* enable errors */
volatile ccsr_ddr_t *ddr= (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR);
dma_meminit(CONFIG_MEM_INIT_VALUE, dram_size);
/* Enable errors for ECC */
ddr->err_disable = 0x00000000;
asm("sync;isync;msync");
}
#endif
return dram_size;
}
long int initdram (int board_type)
{
long dram_size = 0;
#if !defined(CONFIG_RAM_AS_FLASH)
volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
sys_info_t sysinfo;
uint temp_lbcdll = 0;
#endif
#if !defined(CONFIG_RAM_AS_FLASH) || defined(CONFIG_DDR_DLL)
volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
#endif
#if defined(CONFIG_DDR_DLL)
uint temp_ddrdll = 0;
/* Work around to stabilize DDR DLL */
temp_ddrdll = gur->ddrdllcr;
gur->ddrdllcr = ((temp_ddrdll & 0xff) << 16) | 0x80000000;
asm("sync;isync;msync");
#endif
#if defined(CONFIG_SPD_EEPROM)
dram_size = spd_sdram ();
#else
dram_size = fixed_sdram ();
#endif
#if defined(CFG_RAMBOOT)
return dram_size;
#endif
#if !defined(CONFIG_RAM_AS_FLASH) /* LocalBus is not emulating flash */
get_sys_info(&sysinfo);
/* if localbus freq is less than 66Mhz,we use bypass mode,otherwise use DLL */
if(sysinfo.freqSystemBus/(CFG_LBC_LCRR & 0x0f) < 66000000) {
lbc->lcrr = (CFG_LBC_LCRR & 0x0fffffff)| 0x80000000;
} else {
lbc->lcrr = CFG_LBC_LCRR & 0x7fffffff;
udelay(200);
temp_lbcdll = gur->lbcdllcr;
gur->lbcdllcr = ((temp_lbcdll & 0xff) << 16 ) | 0x80000000;
asm("sync;isync;msync");
}
lbc->or2 = CFG_OR2_PRELIM; /* 64MB SDRAM */
lbc->br2 = CFG_BR2_PRELIM;
lbc->lbcr = CFG_LBC_LBCR;
lbc->lsdmr = CFG_LBC_LSDMR_1;
asm("sync");
* (ulong *)0 = 0x000000ff;
lbc->lsdmr = CFG_LBC_LSDMR_2;
asm("sync");
* (ulong *)0 = 0x000000ff;
lbc->lsdmr = CFG_LBC_LSDMR_3;
asm("sync");
* (ulong *)0 = 0x000000ff;
lbc->lsdmr = CFG_LBC_LSDMR_4;
asm("sync");
* (ulong *)0 = 0x000000ff;
lbc->lsdmr = CFG_LBC_LSDMR_5;
asm("sync");
lbc->lsrt = CFG_LBC_LSRT;
asm("sync");
lbc->mrtpr = CFG_LBC_MRTPR;
asm("sync");
#endif
#if defined(CONFIG_DDR_ECC)
{
/* Initialize all of memory for ECC, then
* enable errors */
uint *p = 0;
uint i = 0;
volatile ccsr_ddr_t *ddr= (void *)(CFG_MPC85xx_DDR_ADDR);
dma_init();
for (*p = 0; p < (uint *)(8 * 1024); p++) {
if (((unsigned int)p & 0x1f) == 0) {
dcbz(p);
}
*p = (unsigned int)0xdeadbeef;
if (((unsigned int)p & 0x1c) == 0x1c) {
dcbf(p);
}
}
/* 8K */
dma_xfer((uint *)0x2000,0x2000,(uint *)0);
/* 16K */
dma_xfer((uint *)0x4000,0x4000,(uint *)0);
/* 32K */
dma_xfer((uint *)0x8000,0x8000,(uint *)0);
/* 64K */
dma_xfer((uint *)0x10000,0x10000,(uint *)0);
/* 128k */
dma_xfer((uint *)0x20000,0x20000,(uint *)0);
/* 256k */
dma_xfer((uint *)0x40000,0x40000,(uint *)0);
/* 512k */
dma_xfer((uint *)0x80000,0x80000,(uint *)0);
/* 1M */
dma_xfer((uint *)0x100000,0x100000,(uint *)0);
/* 2M */
dma_xfer((uint *)0x200000,0x200000,(uint *)0);
/* 4M */
dma_xfer((uint *)0x400000,0x400000,(uint *)0);
for (i = 1; i < dram_size / 0x800000; i++) {
dma_xfer((uint *)(0x800000*i),0x800000,(uint *)0);
}
/* Enable errors for ECC */
ddr->err_disable = 0x00000000;
asm("sync;isync;msync");
}
#endif
return dram_size;
}
phys_size_t initdram (int board_type)
{
return fixed_sdram(NULL, NULL, 0);
}
phys_size_t initdram(int board_type)
{
u32 msize = 0;
/*
* Elpida MDDRC and initialization settings are an alternative
* to the Default Micron ones for all but the earliest Rev 4 boards
*/
ddr512x_config_t elpida_mddrc_config = {
.ddr_sys_config = CONFIG_SYS_MDDRC_SYS_CFG_ELPIDA,
.ddr_time_config0 = CONFIG_SYS_MDDRC_TIME_CFG0,
.ddr_time_config1 = CONFIG_SYS_MDDRC_TIME_CFG1_ELPIDA,
.ddr_time_config2 = CONFIG_SYS_MDDRC_TIME_CFG2_ELPIDA,
};
u32 elpida_init_sequence[] = {
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_PCHG_ALL,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_RFSH,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_RFSH,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_EM2,
CONFIG_SYS_DDRCMD_EM3,
CONFIG_SYS_DDRCMD_EN_DLL,
CONFIG_SYS_ELPIDA_RES_DLL,
CONFIG_SYS_DDRCMD_PCHG_ALL,
CONFIG_SYS_DDRCMD_RFSH,
CONFIG_SYS_DDRCMD_RFSH,
CONFIG_SYS_DDRCMD_RFSH,
CONFIG_SYS_ELPIDA_INIT_DEV_OP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_OCD_DEFAULT,
CONFIG_SYS_ELPIDA_OCD_EXIT,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP
};
if (is_micron()) {
msize = fixed_sdram(NULL, NULL, 0);
} else {
msize = fixed_sdram(&elpida_mddrc_config,
elpida_init_sequence,
sizeof(elpida_init_sequence)/sizeof(u32));
}
return msize;
}