diff options
Diffstat (limited to 'board/tqm8xx/flash.c')
| -rw-r--r-- | board/tqm8xx/flash.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/board/tqm8xx/flash.c b/board/tqm8xx/flash.c index 6b4ea7d..98bea0e 100644 --- a/board/tqm8xx/flash.c +++ b/board/tqm8xx/flash.c @@ -21,6 +21,8 @@ * MA 02111-1307 USA */ +/* #define DEBUG */ + #include <common.h> #include <mpc8xx.h> @@ -53,8 +55,12 @@ unsigned long flash_init (void) /* Static FLASH Bank configuration here - FIXME XXX */ + debug ("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_PRELIM); + size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]); + debug ("## Get flash bank 2 size @ 0x%08x\n",FLASH_BASE1_PRELIM); + if (flash_info[0].flash_id == FLASH_UNKNOWN) { printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", size_b0, size_b0<<20); @@ -62,6 +68,8 @@ unsigned long flash_init (void) size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]); + debug ("## Prelim. Flash bank sizes: %08lx + 0x%08lx\n",size_b0,size_b1); + if (size_b1 > size_b0) { printf ("## ERROR: " "Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n", @@ -77,10 +85,19 @@ unsigned long flash_init (void) return (0); } + debug ("## Before remap: " + "BR0: 0x%08x OR0: 0x%08x " + "BR1: 0x%08x OR1: 0x%08x\n", + memctl->memc_br0, memctl->memc_or0, + memctl->memc_br1, memctl->memc_or1); + /* Remap FLASH according to real size */ memctl->memc_or0 = CFG_OR_TIMING_FLASH | (-size_b0 & OR_AM_MSK); memctl->memc_br0 = (CFG_FLASH_BASE & BR_BA_MSK) | BR_MS_GPCM | BR_V; + debug ("## BR0: 0x%08x OR0: 0x%08x\n", + memctl->memc_br0, memctl->memc_or0); + /* Re-do sizing to get full correct info */ size_b0 = flash_get_size((vu_long *)CFG_FLASH_BASE, &flash_info[0]); @@ -105,6 +122,9 @@ unsigned long flash_init (void) memctl->memc_br1 = ((CFG_FLASH_BASE + size_b0) & BR_BA_MSK) | BR_MS_GPCM | BR_V; + debug ("## BR1: 0x%08x OR1: 0x%08x\n", + memctl->memc_br1, memctl->memc_or1); + /* Re-do sizing to get full correct info */ size_b1 = flash_get_size((vu_long *)(CFG_FLASH_BASE + size_b0), &flash_info[1]); @@ -129,8 +149,14 @@ unsigned long flash_init (void) flash_info[1].flash_id = FLASH_UNKNOWN; flash_info[1].sector_count = -1; + flash_info[1].size = 0; + + debug ("## DISABLE BR1: 0x%08x OR1: 0x%08x\n", + memctl->memc_br1, memctl->memc_or1); } + debug ("## Final Flash bank sizes: %08lx + 0x%08lx\n",size_b0,size_b1); + flash_info[0].size = size_b0; flash_info[1].size = size_b1; @@ -215,6 +241,8 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info) value = addr[0]; + debug ("Manuf. ID @ 0x%08lx: 0x%08lx\n", (ulong)addr, value); + switch (value) { case AMD_MANUFACT: info->flash_id = FLASH_MAN_AMD; @@ -231,6 +259,8 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info) value = addr[1]; /* device ID */ + debug ("Device ID @ 0x%08lx: 0x%08lx\n", (ulong)(&addr[1]), value); + switch (value) { case AMD_ID_LV400T: info->flash_id += FLASH_AM400T; @@ -278,6 +308,12 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info) info->sector_count = 71; info->size = 0x00800000; break; /* => 8 MB */ + case AMD_ID_DL640: +debug ("## oops - same ID used for AM29LV128ML/H mirror bit flash ???\n"); + info->flash_id += FLASH_AMDL640; + info->sector_count = 142; + info->size = 0x00800000; + break; default: info->flash_id = FLASH_UNKNOWN; return (0); /* => no or unknown flash */ @@ -368,6 +404,8 @@ int flash_erase (flash_info_t *info, int s_first, int s_last) int flag, prot, sect, l_sect; ulong start, now, last; + debug ("flash_erase: first: %d last: %d\n", s_first, s_last); + if ((s_first < 0) || (s_first > s_last)) { if (info->flash_id == FLASH_UNKNOWN) { printf ("- missing\n"); |