diff options
Diffstat (limited to 'board/icecube/flash.c')
| -rw-r--r-- | board/icecube/flash.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/board/icecube/flash.c b/board/icecube/flash.c index 9164bd9..07879ff 100644 --- a/board/icecube/flash.c +++ b/board/icecube/flash.c @@ -64,24 +64,20 @@ unsigned long flash_init (void) unsigned long size = 0; int i; extern void flash_preinit(void); + extern void flash_afterinit(ulong); + ulong flashbase = CFG_FLASH_BASE; flash_preinit(); /* Init: no FLASHes known */ for (i=0; i < CFG_MAX_FLASH_BANKS; ++i) { - ulong flashbase = CFG_FLASH_BASE; - memset(&flash_info[i], 0, sizeof(flash_info_t)); flash_info[i].size = flash_get_size((FPW *)flashbase, &flash_info[i]); - if (flash_info[i].flash_id == FLASH_UNKNOWN) { - printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx\n", - i, flash_info[i].size); - } - size += flash_info[i].size; + flashbase += 0x800000; } #if CFG_MONITOR_BASE >= CFG_FLASH_BASE /* monitor protection ON by default */ @@ -100,6 +96,7 @@ unsigned long flash_init (void) #endif + flash_afterinit(size); return size ? size : 1; } @@ -126,7 +123,8 @@ static flash_info_t *flash_get_info(ulong base) for (i = 0; i < CFG_MAX_FLASH_BANKS; i ++) { info = & flash_info[i]; - if (info->start[0] <= base && base <= info->start[0] + info->size - 1) + if (info->size && + info->start[0] <= base && base <= info->start[0] + info->size - 1) break; } @@ -211,6 +209,8 @@ void flash_print_info (flash_info_t *info) ulong flash_get_size (FPWV *addr, flash_info_t *info) { int i; + FPWV* addr2; + /* Write auto select command: read Manufacturer ID */ /* Write auto select command sequence and test FLASH answer */ addr[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* for AMD, Intel ignores this */ @@ -256,6 +256,17 @@ ulong flash_get_size (FPWV *addr, flash_info_t *info) return (0); /* => no or unknown flash */ } + /* test for real flash at bank 1 */ + addr2 = (FPW *)((ulong)addr | 0x800000); + if (addr2 != addr && + ((addr2[0] & 0xff) == (addr[0] & 0xff)) && ((FPW)addr2[1] == (FPW)addr[1])) { + /* Seems 2 banks are the same space (8Mb chip is installed, + * J24 in default position (CS0)). Disable this (first) bank. + */ + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + } /* Put FLASH back in read mode */ flash_reset(info); |