diff options
author | wdenk <wdenk> | 2004-02-12 00:47:09 +0000 |
---|---|---|
committer | wdenk <wdenk> | 2004-02-12 00:47:09 +0000 |
commit | bf9e3b38f77c2eac620263dd60437c6ec47a27bf (patch) | |
tree | d03891090553d167f3eb08d7f9c3f2532e43fcc2 /board/evb64260/sdram_init.c | |
parent | a2d18bb7d31e7b971386fef505ff0218f3b6e893 (diff) | |
download | u-boot-imx-bf9e3b38f77c2eac620263dd60437c6ec47a27bf.zip u-boot-imx-bf9e3b38f77c2eac620263dd60437c6ec47a27bf.tar.gz u-boot-imx-bf9e3b38f77c2eac620263dd60437c6ec47a27bf.tar.bz2 |
* Some code cleanup
* Patch by Josef Baumgartner, 10 Feb 2004:
Fixes for Coldfire port
* Patch by Brad Kemp, 11 Feb 2004:
Fix CFI flash driver problems
Diffstat (limited to 'board/evb64260/sdram_init.c')
-rw-r--r-- | board/evb64260/sdram_init.c | 420 |
1 files changed, 217 insertions, 203 deletions
diff --git a/board/evb64260/sdram_init.c b/board/evb64260/sdram_init.c index d019d22..d9318d5 100644 --- a/board/evb64260/sdram_init.c +++ b/board/evb64260/sdram_init.c @@ -54,65 +54,64 @@ typedef struct sdram_info { uchar tras_clocks; uchar burst_len; uchar banks, slot; - int size; /* detected size, not from I2C but from dram_size() */ + int size; /* detected size, not from I2C but from dram_size() */ } sdram_info_t; #ifdef DEBUG -void dump_dimm_info(struct sdram_info *d) +void dump_dimm_info (struct sdram_info *d) { - static const char *ecc_legend[]={""," Parity"," ECC"}; - printf("dimm%s %sDRAM: %dMibytes:\n", - ecc_legend[d->ecc], - d->registered?"R":"", - (d->size>>20)); - printf(" drb=%d tpar=%d tras=%d burstlen=%d banks=%d slot=%d\n", - d->drb_size, d->tpar, d->tras_clocks, d->burst_len, - d->banks, d->slot); + static const char *ecc_legend[] = { "", " Parity", " ECC" }; + + printf ("dimm%s %sDRAM: %dMibytes:\n", + ecc_legend[d->ecc], + d->registered ? "R" : "", (d->size >> 20)); + printf (" drb=%d tpar=%d tras=%d burstlen=%d banks=%d slot=%d\n", + d->drb_size, d->tpar, d->tras_clocks, d->burst_len, + d->banks, d->slot); } #endif static int -memory_map_bank(unsigned int bankNo, - unsigned int bankBase, - unsigned int bankLength) +memory_map_bank (unsigned int bankNo, + unsigned int bankBase, unsigned int bankLength) { #ifdef DEBUG if (bankLength > 0) { - printf("mapping bank %d at %08x - %08x\n", - bankNo, bankBase, bankBase + bankLength - 1); + printf ("mapping bank %d at %08x - %08x\n", + bankNo, bankBase, bankBase + bankLength - 1); } else { - printf("unmapping bank %d\n", bankNo); + printf ("unmapping bank %d\n", bankNo); } #endif - memoryMapBank(bankNo, bankBase, bankLength); + memoryMapBank (bankNo, bankBase, bankLength); return 0; } #ifdef MAP_PCI static int -memory_map_bank_pci(unsigned int bankNo, - unsigned int bankBase, - unsigned int bankLength) +memory_map_bank_pci (unsigned int bankNo, + unsigned int bankBase, unsigned int bankLength) { PCI_HOST host; - for (host=PCI_HOST0;host<=PCI_HOST1;host++) { - const int features= + + for (host = PCI_HOST0; host <= PCI_HOST1; host++) { + const int features = PREFETCH_ENABLE | DELAYED_READ_ENABLE | AGGRESSIVE_PREFETCH | READ_LINE_AGGRESSIVE_PREFETCH | READ_MULTI_AGGRESSIVE_PREFETCH | - MAX_BURST_4 | - PCI_NO_SWAP; + MAX_BURST_4 | PCI_NO_SWAP; - pciMapMemoryBank(host, bankNo, bankBase, bankLength); + pciMapMemoryBank (host, bankNo, bankBase, bankLength); - pciSetRegionSnoopMode(host, bankNo, PCI_SNOOP_WB, bankBase, - bankLength); + pciSetRegionSnoopMode (host, bankNo, PCI_SNOOP_WB, bankBase, + bankLength); - pciSetRegionFeatures(host, bankNo, features, bankBase, bankLength); + pciSetRegionFeatures (host, bankNo, features, bankBase, + bankLength); } return 0; } @@ -128,8 +127,7 @@ memory_map_bank_pci(unsigned int bankNo, * translate ns.ns/10 coding of SPD timing values * into 10 ps unit values */ -static inline unsigned short -NS10to10PS(unsigned char spd_byte) +static inline unsigned short NS10to10PS (unsigned char spd_byte) { unsigned short ns, ns10; @@ -138,37 +136,35 @@ NS10to10PS(unsigned char spd_byte) /* isolate lower nibble */ ns10 = (spd_byte & 0x0F); - return(ns*100 + ns10*10); + return (ns * 100 + ns10 * 10); } /* * translate ns coding of SPD timing values * into 10 ps unit values */ -static inline unsigned short -NSto10PS(unsigned char spd_byte) +static inline unsigned short NSto10PS (unsigned char spd_byte) { - return(spd_byte*100); + return (spd_byte * 100); } #ifdef CONFIG_ZUMA_V2 -static int -check_dimm(uchar slot, sdram_info_t *info) +static int check_dimm (uchar slot, sdram_info_t * info) { /* assume 2 dimms, 2 banks each 256M - we dont have an * dimm i2c so rely on the detection routines later */ - memset(info, 0, sizeof(*info)); + memset (info, 0, sizeof (*info)); info->slot = slot; info->banks = 2; /* Detect later */ - info->registered = 0; + info->registered = 0; info->drb_size = 32; /* 16 - 256MBit, 32 - 512MBit but doesn't matter, both do same thing in setup_sdram() */ - info->tpar = 3; - info->tras_clocks = 5; - info->burst_len = 4; + info->tpar = 3; + info->tras_clocks = 5; + info->burst_len = 4; #ifdef CONFIG_ECC info->ecc = 0; /* Detect later */ #endif /* CONFIG_ECC */ @@ -177,10 +173,9 @@ check_dimm(uchar slot, sdram_info_t *info) #elif defined(CONFIG_P3G4) -static int -check_dimm(uchar slot, sdram_info_t *info) +static int check_dimm (uchar slot, sdram_info_t * info) { - memset(info, 0, sizeof(*info)); + memset (info, 0, sizeof (*info)); if (slot) return 0; @@ -198,12 +193,11 @@ check_dimm(uchar slot, sdram_info_t *info) return 0; } -#else /* ! CONFIG_ZUMA_V2 && ! CONFIG_P3G4*/ +#else /* ! CONFIG_ZUMA_V2 && ! CONFIG_P3G4 */ /* This code reads the SPD chip on the sdram and populates * the array which is passed in with the relevant information */ -static int -check_dimm(uchar slot, sdram_info_t *info) +static int check_dimm (uchar slot, sdram_info_t * info) { DECLARE_GLOBAL_DATA_PTR; uchar addr = slot == 0 ? DIMM0_I2C_ADDR : DIMM1_I2C_ADDR; @@ -215,32 +209,32 @@ check_dimm(uchar slot, sdram_info_t *info) get_clocks (); - tmemclk = 1000000000 / (gd->bus_clk / 100); /* in 10 ps units */ + tmemclk = 1000000000 / (gd->bus_clk / 100); /* in 10 ps units */ #ifdef CONFIG_EVB64260_750CX if (0 != slot) { - printf("check_dimm: The EVB-64260-750CX only has 1 DIMM,"); - printf(" called with slot=%d insetad!\n", slot); + printf ("check_dimm: The EVB-64260-750CX only has 1 DIMM,"); + printf (" called with slot=%d insetad!\n", slot); return 0; } #endif - DP(puts("before i2c read\n")); + DP (puts ("before i2c read\n")); - ret = i2c_read(addr, 0, 128, data, 0); + ret = i2c_read (addr, 0, 128, data, 0); - DP(puts("after i2c read\n")); + DP (puts ("after i2c read\n")); /* zero all the values */ - memset(info, 0, sizeof(*info)); + memset (info, 0, sizeof (*info)); if (ret) { - DP(printf("No DIMM in slot %d [err = %x]\n", slot, ret)); + DP (printf ("No DIMM in slot %d [err = %x]\n", slot, ret)); return 0; } /* first, do some sanity checks */ if (data[2] != 0x4) { - printf("Not SDRAM in slot %d\n", slot); + printf ("Not SDRAM in slot %d\n", slot); return 0; } @@ -251,7 +245,8 @@ check_dimm(uchar slot, sdram_info_t *info) sdram_banks = data[17]; width = data[13] & 0x7f; - DP(printf("sdram_banks: %d, banks: %d\n", sdram_banks, info->banks)); + DP (printf + ("sdram_banks: %d, banks: %d\n", sdram_banks, info->banks)); /* check if the memory is registered */ if (data[21] & (BIT1 | BIT4)) @@ -266,31 +261,31 @@ check_dimm(uchar slot, sdram_info_t *info) supp_cal = (data[18] & 0x6) >> 1; /* compute the relevant clock values */ - trp_clocks = (NSto10PS(data[27])+(tmemclk-1)) / tmemclk; - trcd_clocks = (NSto10PS(data[29])+(tmemclk-1)) / tmemclk; - info->tras_clocks = (NSto10PS(data[30])+(tmemclk-1)) / tmemclk; + trp_clocks = (NSto10PS (data[27]) + (tmemclk - 1)) / tmemclk; + trcd_clocks = (NSto10PS (data[29]) + (tmemclk - 1)) / tmemclk; + info->tras_clocks = (NSto10PS (data[30]) + (tmemclk - 1)) / tmemclk; - DP(printf("trp = %d\ntrcd_clocks = %d\ntras_clocks = %d\n", - trp_clocks, trcd_clocks, info->tras_clocks)); + DP (printf ("trp = %d\ntrcd_clocks = %d\ntras_clocks = %d\n", + trp_clocks, trcd_clocks, info->tras_clocks)); /* try a CAS latency of 3 first... */ cal_val = 0; if (supp_cal & 3) { - if (NS10to10PS(data[9]) <= tmemclk) + if (NS10to10PS (data[9]) <= tmemclk) cal_val = 3; } /* then 2... */ if (supp_cal & 2) { - if (NS10to10PS(data[23]) <= tmemclk) + if (NS10to10PS (data[23]) <= tmemclk) cal_val = 2; } - DP(printf("cal_val = %d\n", cal_val)); + DP (printf ("cal_val = %d\n", cal_val)); /* bummer, did't work... */ if (cal_val == 0) { - DP(printf("Couldn't find a good CAS latency\n")); + DP (printf ("Couldn't find a good CAS latency\n")); return 0; } @@ -302,18 +297,19 @@ check_dimm(uchar slot, sdram_info_t *info) if (trcd_clocks > info->tpar) info->tpar = trcd_clocks; - DP(printf("tpar set to: %d\n", info->tpar)); + DP (printf ("tpar set to: %d\n", info->tpar)); #ifdef CFG_BROKEN_CL2 - if (info->tpar == 2){ + if (info->tpar == 2) { info->tpar = 3; - DP(printf("tpar fixed-up to: %d\n", info->tpar)); + DP (printf ("tpar fixed-up to: %d\n", info->tpar)); } #endif /* compute the module DRB size */ - info->drb_size = (((1 << (rows + cols)) * sdram_banks) * width) / _16M; + info->drb_size = + (((1 << (rows + cols)) * sdram_banks) * width) / _16M; - DP(printf("drb_size set to: %d\n", info->drb_size)); + DP (printf ("drb_size set to: %d\n", info->drb_size)); /* find the burst len */ info->burst_len = data[16] & 0xf; @@ -330,40 +326,52 @@ check_dimm(uchar slot, sdram_info_t *info) } #endif /* ! CONFIG_ZUMA_V2 */ -static int -setup_sdram_common(sdram_info_t info[2]) +static int setup_sdram_common (sdram_info_t info[2]) { ulong tmp; - int tpar=2, tras_clocks=5, registered=1, ecc=2; + int tpar = 2, tras_clocks = 5, registered = 1, ecc = 2; + + if (!info[0].banks && !info[1].banks) + return 0; + + if (info[0].banks) { + if (info[0].tpar > tpar) + tpar = info[0].tpar; + if (info[0].tras_clocks > tras_clocks) + tras_clocks = info[0].tras_clocks; + if (!info[0].registered) + registered = 0; + if (info[0].ecc != 2indent: Standard input:491: Warning:old style assignment ambiguity in "=*". Assuming "= *" - if(!info[0].banks && !info[1].banks) return 0; +indent: Standard input:492: Warning:old style assignment ambiguity in "=*". Assuming "= *" - if(info[0].banks) { - if(info[0].tpar>tpar) tpar=info[0].tpar; - if(info[0].tras_clocks>tras_clocks) tras_clocks=info[0].tras_clocks; - if(!info[0].registered) registered=0; - if(info[0].ecc!=2) ecc=0; +) + ecc = 0; } - if(info[1].banks) { - if(info[1].tpar>tpar) tpar=info[1].tpar; - if(info[1].tras_clocks>tras_clocks) tras_clocks=info[1].tras_clocks; - if(!info[1].registered) registered=0; - if(info[1].ecc!=2) ecc=0; + if (info[1].banks) { + if (info[1].tpar > tpar) + tpar = info[1].tpar; + if (info[1].tras_clocks > tras_clocks) + tras_clocks = info[1].tras_clocks; + if (!info[1].registered) + registered = 0; + if (info[1].ecc != 2) + ecc = 0; } /* SDRAM configuration */ - tmp = GTREGREAD(SDRAM_CONFIGURATION); + tmp = GTREGREAD (SDRAM_CONFIGURATION); /* Turn on physical interleave if both DIMMs * have even numbers of banks. */ - if( (info[0].banks == 0 || info[0].banks == 2) && - (info[1].banks == 0 || info[1].banks == 2) ) { - /* physical interleave on */ - tmp &= ~(1 << 15); + if ((info[0].banks == 0 || info[0].banks == 2) && + (info[1].banks == 0 || info[1].banks == 2)) { + /* physical interleave on */ + tmp &= ~(1 << 15); } else { - /* physical interleave off */ - tmp |= (1 << 15); + /* physical interleave off */ + tmp |= (1 << 15); } tmp |= (registered << 17); @@ -372,52 +380,51 @@ setup_sdram_common(sdram_info_t info[2]) * See Res #12 */ tmp |= (1 << 26); - GT_REG_WRITE(SDRAM_CONFIGURATION, tmp); - DP(printf("SDRAM config: %08x\n", - GTREGREAD(SDRAM_CONFIGURATION))); + GT_REG_WRITE (SDRAM_CONFIGURATION, tmp); + DP (printf ("SDRAM config: %08x\n", GTREGREAD (SDRAM_CONFIGURATION))); /* SDRAM timing */ tmp = (((tpar == 3) ? 2 : 1) | (((tpar == 3) ? 2 : 1) << 2) | - (((tpar == 3) ? 2 : 1) << 4) | - (tras_clocks << 8)); + (((tpar == 3) ? 2 : 1) << 4) | (tras_clocks << 8)); #ifdef CONFIG_ECC /* Setup ECC */ - if (ecc == 2) tmp |= 1<<13; + if (ecc == 2) + tmp |= 1 << 13; #endif /* CONFIG_ECC */ - GT_REG_WRITE(SDRAM_TIMING, tmp); - DP(printf("SDRAM timing: %08x (%d,%d,%d,%d)\n", - GTREGREAD(SDRAM_TIMING), tpar,tpar,tpar,tras_clocks)); + GT_REG_WRITE (SDRAM_TIMING, tmp); + DP (printf ("SDRAM timing: %08x (%d,%d,%d,%d)\n", + GTREGREAD (SDRAM_TIMING), tpar, tpar, tpar, tras_clocks)); /* SDRAM address decode register */ /* program this with the default value */ - GT_REG_WRITE(SDRAM_ADDRESS_DECODE, 0x2); - DP(printf("SDRAM decode: %08x\n", - GTREGREAD(SDRAM_ADDRESS_DECODE))); + GT_REG_WRITE (SDRAM_ADDRESS_DECODE, 0x2); + DP (printf ("SDRAM decode: %08x\n", + GTREGREAD (SDRAM_ADDRESS_DECODE))); return 0; } /* sets up the GT properly with information passed in */ -static int -setup_sdram(sdram_info_t *info) +static int setup_sdram (sdram_info_t * info) { ulong tmp, check; ulong *addr = 0; int i; /* sanity checking */ - if (! info->banks) return 0; + if (!info->banks) + return 0; /* ---------------------------- */ /* Program the GT with the discovered data */ /* bank parameters */ - tmp = (0xf<<16); /* leave all virt bank pages open */ + tmp = (0xf << 16); /* leave all virt bank pages open */ - DP(printf("drb_size: %d\n", info->drb_size)); + DP (printf ("drb_size: %d\n", info->drb_size)); switch (info->drb_size) { case 1: tmp |= (1 << 14); @@ -431,41 +438,42 @@ setup_sdram(sdram_info_t *info) tmp |= (3 << 14); break; default: - printf("Error in dram size calculation\n"); + printf ("Error in dram size calculation\n"); return 1; } /* SDRAM bank parameters */ /* the param registers for slot 1 (banks 2+3) are offset by 0x8 */ - GT_REG_WRITE(SDRAM_BANK0PARAMETERS + (info->slot * 0x8), tmp); - GT_REG_WRITE(SDRAM_BANK1PARAMETERS + (info->slot * 0x8), tmp); - DP(printf("SDRAM bankparam slot %d (bank %d+%d): %08lx\n", info->slot, info->slot*2, (info->slot*2)+1, tmp)); + GT_REG_WRITE (SDRAM_BANK0PARAMETERS + (info->slot * 0x8), tmp); + GT_REG_WRITE (SDRAM_BANK1PARAMETERS + (info->slot * 0x8), tmp); + DP (printf + ("SDRAM bankparam slot %d (bank %d+%d): %08lx\n", info->slot, + info->slot * 2, (info->slot * 2) + 1, tmp)); /* set the SDRAM configuration for each bank */ for (i = info->slot * 2; i < ((info->slot * 2) + info->banks); i++) { - DP(printf("*** Running a MRS cycle for bank %d ***\n", i)); + DP (printf ("*** Running a MRS cycle for bank %d ***\n", i)); /* map the bank */ - memory_map_bank(i, 0, GB/4); + memory_map_bank (i, 0, GB / 4); /* set SDRAM mode */ - GT_REG_WRITE(SDRAM_OPERATION_MODE, 0x3); - check = GTREGREAD(SDRAM_OPERATION_MODE); + GT_REG_WRITE (SDRAM_OPERATION_MODE, 0x3); + check = GTREGREAD (SDRAM_OPERATION_MODE); /* dummy write */ *addr = 0; /* wait for the command to complete */ - while ((GTREGREAD(SDRAM_OPERATION_MODE) & (1 << 31)) == 0) - ; + while ((GTREGREAD (SDRAM_OPERATION_MODE) & (1 << 31)) == 0); /* switch back to normal operation mode */ - GT_REG_WRITE(SDRAM_OPERATION_MODE, 0); - check = GTREGREAD(SDRAM_OPERATION_MODE); + GT_REG_WRITE (SDRAM_OPERATION_MODE, 0); + check = GTREGREAD (SDRAM_OPERATION_MODE); /* unmap the bank */ - memory_map_bank(i, 0, 0); - DP(printf("*** MRS cycle for bank %d done ***\n", i)); + memory_map_bank (i, 0, 0); + DP (printf ("*** MRS cycle for bank %d done ***\n", i)); } return 0; @@ -478,50 +486,50 @@ setup_sdram(sdram_info_t *info) * - short between address lines * - short between data lines */ -static long int -dram_size(long int *base, long int maxsize) +static long int dram_size (long int *base, long int maxsize) { - volatile long int *addr, *b=base; - long int cnt, val, save1, save2; + volatile long int *addr, *b = base; + long int cnt, val, save1, save2; #define STARTVAL (1<<20) /* start test at 1M */ - for (cnt = STARTVAL/sizeof(long); cnt < maxsize/sizeof(long); cnt <<= 1) { - addr = base + cnt; /* pointer arith! */ - - save1=*addr; /* save contents of addr */ - save2=*b; /* save contents of base */ - - *addr=cnt; /* write cnt to addr */ - *b=0; /* put null at base */ - - /* check at base address */ - if ((*b) != 0) { - *addr=save1; /* restore *addr */ - *b=save2; /* restore *b */ - return (0); - } - val = *addr; /* read *addr */ - - *addr=save1; - *b=save2; - - if (val != cnt) { - /* fix boundary condition.. STARTVAL means zero */ - if(cnt==STARTVAL/sizeof(long)) cnt=0; - return (cnt * sizeof(long)); - } - } - return maxsize; + for (cnt = STARTVAL / sizeof (long); cnt < maxsize / sizeof (long); + cnt <<= 1) { + addr = base + cnt; /* pointer arith! */ + + save1 = *addr; /* save contents of addr */ + save2 = *b; /* save contents of base */ + + *addr = cnt; /* write cnt to addr */ + *b = 0; /* put null at base */ + + /* check at base address */ + if ((*b) != 0) { + *addr = save1; /* restore *addr */ + *b = save2; /* restore *b */ + return (0); + } + val = *addr; /* read *addr */ + + *addr = save1; + *b = save2; + + if (val != cnt) { + /* fix boundary condition.. STARTVAL means zero */ + if (cnt == STARTVAL / sizeof (long)) + cnt = 0; + return (cnt * sizeof (long)); + } + } + return maxsize; } /* ------------------------------------------------------------------------- */ /* U-Boot interface function to SDRAM init - this is where all the * controlling logic happens */ -long int -initdram(int board_type) +long int initdram (int board_type) { - ulong checkbank[4] = { [0 ... 3] = 0 }; + ulong checkbank[4] = {[0 ... 3] = 0 }; int bank_no; ulong total; int nhr; @@ -531,92 +539,97 @@ initdram(int board_type) /* first, use the SPD to get info about the SDRAM */ /* check the NHR bit and skip mem init if it's already done */ - nhr = get_hid0() & (1 << 16); + nhr = get_hid0 () & (1 << 16); if (nhr) { - printf("Skipping SDRAM setup due to NHR bit being set\n"); + printf ("Skipping SDRAM setup due to NHR bit being set\n"); } else { /* DIMM0 */ - check_dimm(0, &dimm_info[0]); + check_dimm (0, &dimm_info[0]); /* DIMM1 */ -#ifndef CONFIG_EVB64260_750CX /* EVB64260_750CX has only 1 DIMM */ - check_dimm(1, &dimm_info[1]); -#else /* CONFIG_EVB64260_750CX */ - memset(&dimm_info[1], 0, sizeof(sdram_info_t)); +#ifndef CONFIG_EVB64260_750CX /* EVB64260_750CX has only 1 DIMM */ + check_dimm (1, &dimm_info[1]); +#else /* CONFIG_EVB64260_750CX */ + memset (&dimm_info[1], 0, sizeof (sdram_info_t)); #endif /* unmap all banks */ - memory_map_bank(0, 0, 0); - memory_map_bank(1, 0, 0); - memory_map_bank(2, 0, 0); - memory_map_bank(3, 0, 0); + memory_map_bank (0, 0, 0); + memory_map_bank (1, 0, 0); + memory_map_bank (2, 0, 0); + memory_map_bank (3, 0, 0); /* Now, program the GT with the correct values */ - if (setup_sdram_common(dimm_info)) { - printf("Setup common failed.\n"); + if (setup_sdram_common (dimm_info)) { + printf ("Setup common failed.\n"); } - if (setup_sdram(&dimm_info[0])) { - printf("Setup for DIMM1 failed.\n"); + if (setup_sdram (&dimm_info[0])) { + printf ("Setup for DIMM1 failed.\n"); } - if (setup_sdram(&dimm_info[1])) { - printf("Setup for DIMM2 failed.\n"); + if (setup_sdram (&dimm_info[1])) { + printf ("Setup for DIMM2 failed.\n"); } /* set the NHR bit */ - set_hid0(get_hid0() | (1 << 16)); + set_hid0 (get_hid0 () | (1 << 16)); } /* next, size the SDRAM banks */ total = 0; - if (dimm_info[0].banks > 0) checkbank[0] = 1; - if (dimm_info[0].banks > 1) checkbank[1] = 1; + if (dimm_info[0].banks > 0) + checkbank[0] = 1; + if (dimm_info[0].banks > 1) + checkbank[1] = 1; if (dimm_info[0].banks > 2) - printf("Error, SPD claims DIMM1 has >2 banks\n"); + printf ("Error, SPD claims DIMM1 has >2 banks\n"); - if (dimm_info[1].banks > 0) checkbank[2] = 1; - if (dimm_info[1].banks > 1) checkbank[3] = 1; + if (dimm_info[1].banks > 0) + checkbank[2] = 1; + if (dimm_info[1].banks > 1) + checkbank[3] = 1; if (dimm_info[1].banks > 2) - printf("Error, SPD claims DIMM2 has >2 banks\n"); + printf ("Error, SPD claims DIMM2 has >2 banks\n"); /* Generic dram sizer: works even if we don't have i2c DIMMs, * as long as the timing settings are more or less correct */ /* * pass 1: size all the banks, using first bat (0-256M) - * limitation: we only support 256M per bank due to - * us only having 1 BAT for all DRAM + * limitation: we only support 256M per bank due to + * us only having 1 BAT for all DRAM */ for (bank_no = 0; bank_no < CFG_DRAM_BANKS; bank_no++) { /* skip over banks that are not populated */ - if (! checkbank[bank_no]) + if (!checkbank[bank_no]) continue; - DP(printf("checking bank %d\n", bank_no)); + DP (printf ("checking bank %d\n", bank_no)); - memory_map_bank(bank_no, 0, GB/4); - checkbank[bank_no] = dram_size(NULL, GB/4); - memory_map_bank(bank_no, 0, 0); + memory_map_bank (bank_no, 0, GB / 4); + checkbank[bank_no] = dram_size (NULL, GB / 4); + memory_map_bank (bank_no, 0, 0); - DP(printf("bank %d %08lx\n", bank_no, checkbank[bank_no])); + DP (printf ("bank %d %08lx\n", bank_no, checkbank[bank_no])); } /* * pass 2: contiguously map each bank into physical address - * space. + * space. */ - dimm_info[0].banks=dimm_info[1].banks=0; + dimm_info[0].banks = dimm_info[1].banks = 0; for (bank_no = 0; bank_no < CFG_DRAM_BANKS; bank_no++) { - if(!checkbank[bank_no]) continue; + if (!checkbank[bank_no]) + continue; - dimm_info[bank_no/2].banks++; - dimm_info[bank_no/2].size+=checkbank[bank_no]; + dimm_info[bank_no / 2].banks++; + dimm_info[bank_no / 2].size += checkbank[bank_no]; - memory_map_bank(bank_no, total, checkbank[bank_no]); + memory_map_bank (bank_no, total, checkbank[bank_no]); #ifdef MAP_PCI - memory_map_bank_pci(bank_no, total, checkbank[bank_no]); + memory_map_bank_pci (bank_no, total, checkbank[bank_no]); #endif total += checkbank[bank_no]; } @@ -630,21 +643,22 @@ initdram(int board_type) * in that configuration, ECC chips are mounted, even for stacked * chips) */ - if (checkbank[2]==0 && checkbank[3]==0) { - dimm_info[0].ecc=2; - GT_REG_WRITE(SDRAM_TIMING, GTREGREAD(SDRAM_TIMING) | (1 << 13)); + if (checkbank[2] == 0 && checkbank[3] == 0) { + dimm_info[0].ecc = 2; + GT_REG_WRITE (SDRAM_TIMING, + GTREGREAD (SDRAM_TIMING) | (1 << 13)); /* TODO: do we have to run MRS cycles again? */ } #endif /* CONFIG_ZUMA_V2 */ - if (GTREGREAD(SDRAM_TIMING) & (1 << 13)) { - puts("[ECC] "); + if (GTREGREAD (SDRAM_TIMING) & (1 << 13)) { + puts ("[ECC] "); } #endif /* CONFIG_ECC */ #ifdef DEBUG - dump_dimm_info(&dimm_info[0]); - dump_dimm_info(&dimm_info[1]); + dump_dimm_info (&dimm_info[0]); + dump_dimm_info (&dimm_info[1]); #endif /* TODO: return at MOST 256M? */ /* return total > GB/4 ? GB/4 : total; */ |