diff options
Diffstat (limited to 'cpu/ppc4xx/sdram.c')
| -rw-r--r-- | cpu/ppc4xx/sdram.c | 60 |
1 files changed, 33 insertions, 27 deletions
diff --git a/cpu/ppc4xx/sdram.c b/cpu/ppc4xx/sdram.c index 7d60ad6..6d5f8d6 100644 --- a/cpu/ppc4xx/sdram.c +++ b/cpu/ppc4xx/sdram.c @@ -37,7 +37,7 @@ #ifndef CONFIG_440 -#ifndef CFG_SDRAM_TABLE +#ifndef CONFIG_SYS_SDRAM_TABLE sdram_conf_t mb0cf[] = { {(128 << 20), 13, 0x000A4001}, /* (0-128MB) Address Mode 3, 13x10(4) */ {(64 << 20), 13, 0x00084001}, /* (0-64MB) Address Mode 3, 13x9(4) */ @@ -46,72 +46,72 @@ sdram_conf_t mb0cf[] = { {(4 << 20), 11, 0x00008001}, /* (0-4MB) Address Mode 5, 11x8(2) */ }; #else -sdram_conf_t mb0cf[] = CFG_SDRAM_TABLE; +sdram_conf_t mb0cf[] = CONFIG_SYS_SDRAM_TABLE; #endif #define N_MB0CF (sizeof(mb0cf) / sizeof(mb0cf[0])) -#ifdef CFG_SDRAM_CASL +#ifdef CONFIG_SYS_SDRAM_CASL static ulong ns2clks(ulong ns) { ulong bus_period_x_10 = ONE_BILLION / (get_bus_freq(0) / 10); return ((ns * 10) + bus_period_x_10) / bus_period_x_10; } -#endif /* CFG_SDRAM_CASL */ +#endif /* CONFIG_SYS_SDRAM_CASL */ static ulong compute_sdtr1(ulong speed) { -#ifdef CFG_SDRAM_CASL +#ifdef CONFIG_SYS_SDRAM_CASL ulong tmp; ulong sdtr1 = 0; /* CASL */ - if (CFG_SDRAM_CASL < 2) + if (CONFIG_SYS_SDRAM_CASL < 2) sdtr1 |= (1 << SDRAM0_TR_CASL); else - if (CFG_SDRAM_CASL > 4) + if (CONFIG_SYS_SDRAM_CASL > 4) sdtr1 |= (3 << SDRAM0_TR_CASL); else - sdtr1 |= ((CFG_SDRAM_CASL-1) << SDRAM0_TR_CASL); + sdtr1 |= ((CONFIG_SYS_SDRAM_CASL-1) << SDRAM0_TR_CASL); /* PTA */ - tmp = ns2clks(CFG_SDRAM_PTA); + tmp = ns2clks(CONFIG_SYS_SDRAM_PTA); if ((tmp >= 2) && (tmp <= 4)) sdtr1 |= ((tmp-1) << SDRAM0_TR_PTA); else sdtr1 |= ((4-1) << SDRAM0_TR_PTA); /* CTP */ - tmp = ns2clks(CFG_SDRAM_CTP); + tmp = ns2clks(CONFIG_SYS_SDRAM_CTP); if ((tmp >= 2) && (tmp <= 4)) sdtr1 |= ((tmp-1) << SDRAM0_TR_CTP); else sdtr1 |= ((4-1) << SDRAM0_TR_CTP); /* LDF */ - tmp = ns2clks(CFG_SDRAM_LDF); + tmp = ns2clks(CONFIG_SYS_SDRAM_LDF); if ((tmp >= 2) && (tmp <= 4)) sdtr1 |= ((tmp-1) << SDRAM0_TR_LDF); else sdtr1 |= ((2-1) << SDRAM0_TR_LDF); /* RFTA */ - tmp = ns2clks(CFG_SDRAM_RFTA); + tmp = ns2clks(CONFIG_SYS_SDRAM_RFTA); if ((tmp >= 4) && (tmp <= 10)) sdtr1 |= ((tmp-4) << SDRAM0_TR_RFTA); else sdtr1 |= ((10-4) << SDRAM0_TR_RFTA); /* RCD */ - tmp = ns2clks(CFG_SDRAM_RCD); + tmp = ns2clks(CONFIG_SYS_SDRAM_RCD); if ((tmp >= 2) && (tmp <= 4)) sdtr1 |= ((tmp-1) << SDRAM0_TR_RCD); else sdtr1 |= ((4-1) << SDRAM0_TR_RCD); return sdtr1; -#else /* CFG_SDRAM_CASL */ +#else /* CONFIG_SYS_SDRAM_CASL */ /* * If no values are configured in the board config file * use the default values, which seem to be ok for most @@ -133,20 +133,20 @@ static ulong compute_sdtr1(ulong speed) */ return 0x0086400d; } -#endif /* CFG_SDRAM_CASL */ +#endif /* CONFIG_SYS_SDRAM_CASL */ } /* refresh is expressed in ms */ static ulong compute_rtr(ulong speed, ulong rows, ulong refresh) { -#ifdef CFG_SDRAM_CASL +#ifdef CONFIG_SYS_SDRAM_CASL ulong tmp; tmp = ((refresh*1000*1000) / (1 << rows)) * (speed / 1000); tmp /= 1000000; return ((tmp & 0x00003FF8) << 16); -#else /* CFG_SDRAM_CASL */ +#else /* CONFIG_SYS_SDRAM_CASL */ if (speed > 100000000) { /* * 133 MHz SDRAM @@ -158,7 +158,7 @@ static ulong compute_rtr(ulong speed, ulong rows, ulong refresh) */ return 0x05f00000; } -#endif /* CFG_SDRAM_CASL */ +#endif /* CONFIG_SYS_SDRAM_CASL */ } /* @@ -209,15 +209,15 @@ phys_size_t initdram(int board_type) udelay(10000); if (get_ram_size(0, mb0cf[i].size) == mb0cf[i].size) { + phys_size_t size = mb0cf[i].size; + /* * OK, size detected. Enable second bank if * defined (assumes same type as bank 0) */ #ifdef CONFIG_SDRAM_BANK1 - u32 b1cr = mb0cf[i].size | mb0cf[i].reg; - mtsdram(mem_mcopt1, 0x00000000); - mtsdram(mem_mb1cf, b1cr); /* SDRAM0_B1CR */ + mtsdram(mem_mb1cf, mb0cf[i].size | mb0cf[i].reg); mtsdram(mem_mcopt1, 0x80800000); udelay(10000); @@ -230,13 +230,19 @@ phys_size_t initdram(int board_type) mb0cf[i].size) { mtsdram(mem_mb1cf, 0); mtsdram(mem_mcopt1, 0); + } else { + /* + * We have two identical banks, so the size + * is twice the bank size + */ + size = 2 * size; } #endif /* * OK, size detected -> all done */ - return mb0cf[i].size; + return size; } } @@ -250,17 +256,17 @@ phys_size_t initdram(int board_type) * board config file. */ -#ifndef CFG_SDRAM_TABLE +#ifndef CONFIG_SYS_SDRAM_TABLE sdram_conf_t mb0cf[] = { {(256 << 20), 13, 0x000C4001}, /* 256MB mode 3, 13x10(4) */ {(64 << 20), 12, 0x00082001} /* 64MB mode 2, 12x9(4) */ }; #else -sdram_conf_t mb0cf[] = CFG_SDRAM_TABLE; +sdram_conf_t mb0cf[] = CONFIG_SYS_SDRAM_TABLE; #endif -#ifndef CFG_SDRAM0_TR0 -#define CFG_SDRAM0_TR0 0x41094012 +#ifndef CONFIG_SYS_SDRAM0_TR0 +#define CONFIG_SYS_SDRAM0_TR0 0x41094012 #endif #define N_MB0CF (sizeof(mb0cf) / sizeof(mb0cf[0])) @@ -379,7 +385,7 @@ phys_size_t initdram(int board_type) * Following for CAS Latency = 2.5 @ 133 MHz PLB */ mtsdram(mem_b0cr, mb0cf[i].reg); - mtsdram(mem_tr0, CFG_SDRAM0_TR0); + mtsdram(mem_tr0, CONFIG_SYS_SDRAM0_TR0); mtsdram(mem_tr1, 0x80800800); /* SS=T2 SL=STAGE 3 CD=1 CT=0x00*/ mtsdram(mem_rtr, 0x04100000); /* Interval 7.8µs @ 133MHz PLB */ mtsdram(mem_cfg1, 0x00000000); /* Self-refresh exit, disable PM*/ |