diff options
Diffstat (limited to 'board/tqm8xx/flash.c')
| -rw-r--r-- | board/tqm8xx/flash.c | 75 |
1 files changed, 67 insertions, 8 deletions
diff --git a/board/tqm8xx/flash.c b/board/tqm8xx/flash.c index 98bea0e..c791c30 100644 --- a/board/tqm8xx/flash.c +++ b/board/tqm8xx/flash.c @@ -25,6 +25,7 @@ #include <common.h> #include <mpc8xx.h> +#include <environment.h> #ifndef CFG_ENV_ADDR #define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET) @@ -103,17 +104,41 @@ unsigned long flash_init (void) #if CFG_MONITOR_BASE >= CFG_FLASH_BASE /* monitor protection ON by default */ + debug ("Protect monitor: %08lx ... %08lx\n", + (ulong)CFG_MONITOR_BASE, + (ulong)CFG_MONITOR_BASE + monitor_flash_len - 1); + flash_protect(FLAG_PROTECT_SET, CFG_MONITOR_BASE, - CFG_MONITOR_BASE+monitor_flash_len-1, + CFG_MONITOR_BASE + monitor_flash_len - 1, &flash_info[0]); #endif #ifdef CFG_ENV_IS_IN_FLASH /* ENV protection ON by default */ + debug ("Protect %senvironment: %08lx ... %08lx\n", +# ifdef CFG_ENV_ADDR_REDUND + "primary ", +# else + "", +# endif + (ulong)CFG_ENV_ADDR, + (ulong)CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1); + flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR, - CFG_ENV_ADDR+CFG_ENV_SIZE-1, + CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1, + &flash_info[0]); +#endif + +#ifdef CFG_ENV_ADDR_REDUND + debug ("Protect redundand environment: %08lx ... %08lx\n", + (ulong)CFG_ENV_ADDR_REDUND, + (ulong)CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1); + + flash_protect(FLAG_PROTECT_SET, + CFG_ENV_ADDR_REDUND, + CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1, &flash_info[0]); #endif @@ -181,6 +206,10 @@ void flash_print_info (flash_info_t *info) } switch (info->flash_id & FLASH_TYPEMASK) { +#ifdef CONFIG_TQM8xxM /* mirror bit flash */ + case FLASH_AMLV128U: printf ("AM29LV128ML (128Mbit, uniform sector size)\n"); + break; +# else /* ! TQM8xxM */ case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n"); break; case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n"); @@ -197,6 +226,7 @@ void flash_print_info (flash_info_t *info) break; case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n"); break; +#endif /* TQM8xxM */ default: printf ("Unknown Chip Type\n"); break; } @@ -262,6 +292,25 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info) debug ("Device ID @ 0x%08lx: 0x%08lx\n", (ulong)(&addr[1]), value); switch (value) { +#ifdef CONFIG_TQM8xxM /* mirror bit flash */ + case AMD_ID_MIRROR: + switch(addr[14]) { + case AMD_ID_LV128U_2: + if (addr[15] != AMD_ID_LV128U_3) { + info->flash_id = FLASH_UNKNOWN; + } + else { + info->flash_id += FLASH_AMLV128U; + info->sector_count = 256; + info->size = 0x02000000; + } + break; /* => 32 MB */ + default: + info->flash_id = FLASH_UNKNOWN; + break; + } + break; +# else /* ! TQM8xxM */ case AMD_ID_LV400T: info->flash_id += FLASH_AM400T; info->sector_count = 11; @@ -297,6 +346,7 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info) info->sector_count = 35; info->size = 0x00400000; break; /* => 4 MB */ + case AMD_ID_LV320T: info->flash_id += FLASH_AM320T; info->sector_count = 71; @@ -308,12 +358,7 @@ 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; +#endif /* TQM8xxM */ default: info->flash_id = FLASH_UNKNOWN; return (0); /* => no or unknown flash */ @@ -321,6 +366,19 @@ debug ("## oops - same ID used for AM29LV128ML/H mirror bit flash ???\n"); /* set up sector start address table */ switch (value) { +#ifdef CONFIG_TQM8xxM /* mirror bit flash */ + case AMD_ID_MIRROR: + switch (info->flash_id & FLASH_TYPEMASK) { + /* only known types here - no default */ + case FLASH_AMLV128U: + for (i = 0; i < info->sector_count; i++) { + info->start[i] = base; + base += 0x20000; + } + break; + } + break; +# else /* ! TQM8xxM */ case AMD_ID_LV400B: case AMD_ID_LV800B: case AMD_ID_LV160B: @@ -369,6 +427,7 @@ debug ("## oops - same ID used for AM29LV128ML/H mirror bit flash ???\n"); : 2 * ( 8 << 10); } break; +#endif /* TQM8xxM */ default: return (0); break; |