void
ddr_enable_ecc(unsigned int dram_size)
{
volatile ccsr_ddr_t *ddr= (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR);
dma_meminit(CONFIG_MEM_INIT_VALUE, dram_size);
/*
* Enable errors for ECC.
*/
debug("DMA DDR: err_disable = 0x%08x\n", ddr->err_disable);
ddr->err_disable = 0x00000000;
asm("sync;isync;msync");
debug("DMA DDR: err_disable = 0x%08x\n", ddr->err_disable);
}
void
ddr_enable_ecc(unsigned int dram_size)
{
struct ccsr_ddr __iomem *ddr =
(struct ccsr_ddr __iomem *)(CONFIG_SYS_FSL_DDR_ADDR);
dma_meminit(CONFIG_MEM_INIT_VALUE, dram_size);
/*
* Enable errors for ECC.
*/
debug("DMA DDR: err_disable = 0x%08x\n", ddr->err_disable);
ddr->err_disable = 0x00000000;
asm("sync;isync;msync");
debug("DMA DDR: err_disable = 0x%08x\n", ddr->err_disable);
}
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;
}
