diff options
Diffstat (limited to 'board/freescale/ls1043ardb/ddr.c')
| -rw-r--r-- | board/freescale/ls1043ardb/ddr.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/board/freescale/ls1043ardb/ddr.c b/board/freescale/ls1043ardb/ddr.c index 354b864..fc0c1f6 100644 --- a/board/freescale/ls1043ardb/ddr.c +++ b/board/freescale/ls1043ardb/ddr.c @@ -169,18 +169,64 @@ int fsl_ddr_get_dimm_params(dimm_params_t *pdimm, return 0; } +#else + +phys_size_t fixed_sdram(void) +{ + int i; + char buf[32]; + fsl_ddr_cfg_regs_t ddr_cfg_regs; + phys_size_t ddr_size; + ulong ddr_freq, ddr_freq_mhz; + + ddr_freq = get_ddr_freq(0); + ddr_freq_mhz = ddr_freq / 1000000; + + printf("Configuring DDR for %s MT/s data rate\n", + strmhz(buf, ddr_freq)); + + for (i = 0; fixed_ddr_parm_0[i].max_freq > 0; i++) { + if ((ddr_freq_mhz > fixed_ddr_parm_0[i].min_freq) && + (ddr_freq_mhz <= fixed_ddr_parm_0[i].max_freq)) { + memcpy(&ddr_cfg_regs, + fixed_ddr_parm_0[i].ddr_settings, + sizeof(ddr_cfg_regs)); + break; + } + } + + if (fixed_ddr_parm_0[i].max_freq == 0) + panic("Unsupported DDR data rate %s MT/s data rate\n", + strmhz(buf, ddr_freq)); + + ddr_size = (phys_size_t)2048 * 1024 * 1024; + fsl_ddr_set_memctl_regs(&ddr_cfg_regs, 0, 0); + + return ddr_size; +} #endif int fsl_initdram(void) { phys_size_t dram_size; +#ifdef CONFIG_SYS_DDR_RAW_TIMING #if defined(CONFIG_SPL_BUILD) || !defined(CONFIG_SPL) puts("Initializing DDR....\n"); dram_size = fsl_ddr_sdram(); #else dram_size = fsl_ddr_sdram_size(); #endif +#else +#if defined(CONFIG_SPL_BUILD) || !defined(CONFIG_SPL) + puts("Initialzing DDR using fixed setting\n"); + dram_size = fixed_sdram(); +#else + gd->ram_size = 0x80000000; + + return 0; +#endif +#endif erratum_a008850_post(); #ifdef CONFIG_FSL_DEEP_SLEEP |