summaryrefslogtreecommitdiffstats
path: root/board/trab/flash.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/trab/flash.c')
-rw-r--r--board/trab/flash.c32
1 files changed, 17 insertions, 15 deletions
diff --git a/board/trab/flash.c b/board/trab/flash.c
index 8cdd82400b..3e8f105a03 100644
--- a/board/trab/flash.c
+++ b/board/trab/flash.c
@@ -281,10 +281,12 @@ int flash_erase (flash_info_t * info, int s_first, int s_last)
if (chip1 == ERR || chip2 == ERR) {
rc = ERR_PROG_ERROR;
+ printf ("Flash erase error\n");
goto outahere;
}
if (chip1 == TMO) {
rc = ERR_TIMOUT;
+ printf ("Flash erase timeout error\n");
goto outahere;
}
}
@@ -340,7 +342,9 @@ static int write_word (flash_info_t * info, ulong dest, ulong data)
#endif
iflag = disable_interrupts ();
- *addr = CMD_PROGRAM;
+ MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+ MEM_FLASH_ADDR2 = CMD_UNLOCK2;
+ MEM_FLASH_ADDR1 = CMD_PROGRAM;
*addr = data;
/* arm simple, non interrupt dependent timer */
@@ -352,7 +356,7 @@ static int write_word (flash_info_t * info, ulong dest, ulong data)
result = *addr;
/* check timeout */
- if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) {
+ if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) {
chip1 = ERR | TMO;
break;
}
@@ -384,8 +388,13 @@ static int write_word (flash_info_t * info, ulong dest, ulong data)
*addr = CMD_READ_ARRAY;
- if (chip1 == ERR || chip2 == ERR || *addr != data)
+ if (chip1 == ERR || chip2 == ERR || *addr != data) {
rc = ERR_PROG_ERROR;
+ printf ("Flash program error\n");
+ debug ("chip1: %#x, chip2: %#x, addr: %#lx *addr: %#lx, "
+ "data: %#lx\n",
+ chip1, chip2, addr, *addr, data);
+ }
if (iflag)
enable_interrupts ();
@@ -408,10 +417,6 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
int l;
int i, rc;
- MEM_FLASH_ADDR1 = CMD_UNLOCK1;
- MEM_FLASH_ADDR2 = CMD_UNLOCK2;
- MEM_FLASH_ADDR1 = CMD_UNLOCK_BYPASS;
-
wp = (addr & ~3); /* get lower word aligned address */
/*
@@ -479,9 +484,6 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
Done:
- MEM_FLASH_ADDR = CMD_UNLOCK_BYPASS_RES1;
- MEM_FLASH_ADDR = CMD_UNLOCK_BYPASS_RES2;
-
return (rc);
}
@@ -515,7 +517,7 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
- addr[0] = 0x00FF00FF; /* restore read mode */
+ addr[0] = CMD_READ_ARRAY; /* restore read mode */
debug ("## flash_init: unknown manufacturer\n");
return (0); /* no or unknown flash */
}
@@ -530,7 +532,7 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
info->sector_count = 71;
info->size = 0x00800000;
- addr[0] = 0x00FF00FF; /* restore read mode */
+ addr[0] = CMD_READ_ARRAY; /* restore read mode */
break; /* => 8 MB */
case AMD_ID_LV640U:
@@ -538,7 +540,7 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
info->sector_count = 128;
info->size = 0x01000000;
- addr[0] = 0x00F000F0; /* restore read mode */
+ addr[0] = CMD_READ_ARRAY; /* restore read mode */
break; /* => 16 MB */
case MX_ID_LV320B:
@@ -546,13 +548,13 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
info->sector_count = 71;
info->size = 0x00800000;
- addr[0] = 0x00FF00FF; /* restore read mode */
+ addr[0] = CMD_READ_ARRAY; /* restore read mode */
break; /* => 8 MB */
default:
debug ("## flash_init: unknown flash chip\n");
info->flash_id = FLASH_UNKNOWN;
- addr[0] = 0x00FF00FF; /* restore read mode */
+ addr[0] = CMD_READ_ARRAY; /* restore read mode */
return (0); /* => no or unknown flash */
}
OpenPOWER on IntegriCloud