diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/flash/nor/stellaris.c | 21 | ||||
| -rw-r--r-- | src/flash/nor/stellaris.h | 25 |
2 files changed, 34 insertions, 12 deletions
diff --git a/src/flash/nor/stellaris.c b/src/flash/nor/stellaris.c index 34649fca..4183cba8 100644 --- a/src/flash/nor/stellaris.c +++ b/src/flash/nor/stellaris.c @@ -553,6 +553,11 @@ static int stellaris_read_part_info(struct flash_bank *bank) stellaris_info->pagesize = 1024; stellaris_info->pages_in_lockregion = 2; + /* REVISIT for at least Tempest parts, read NVMSTAT.FWB too. + * That exposes a 32-word Flash Write Buffer ... enabling + * writes of more than one word at a time. + */ + return ERROR_OK; } @@ -640,6 +645,10 @@ static int stellaris_erase(struct flash_bank *bank, int first, int last) target_write_u32(target, FLASH_CIM, 0); target_write_u32(target, FLASH_MISC, PMISC | AMISC); + /* REVISIT this clobbers state set by any halted firmware ... + * it might want to process those IRQs. + */ + for (banknr = first; banknr <= last; banknr++) { /* Address is first word in page */ @@ -726,6 +735,10 @@ static int stellaris_protect(struct flash_bank *bank, int set, int first, int la target_write_u32(target, FLASH_CIM, 0); target_write_u32(target, FLASH_MISC, PMISC | AMISC); + /* REVISIT this clobbers state set by any halted firmware ... + * it might want to process those IRQs. + */ + LOG_DEBUG("fmppe 0x%" PRIx32 "",fmppe); target_write_u32(target, SCB_BASE | FMPPE, fmppe); @@ -921,6 +934,10 @@ static int stellaris_write(struct flash_bank *bank, uint8_t *buffer, uint32_t of target_write_u32(target, FLASH_CIM, 0); target_write_u32(target, FLASH_MISC, PMISC | AMISC); + /* REVISIT this clobbers state set by any halted firmware ... + * it might want to process those IRQs. + */ + /* multiple words to be programmed? */ if (words_remaining > 0) { @@ -1068,6 +1085,10 @@ static int stellaris_mass_erase(struct flash_bank *bank) target_write_u32(target, FLASH_CIM, 0); target_write_u32(target, FLASH_MISC, PMISC | AMISC); + /* REVISIT this clobbers state set by any halted firmware ... + * it might want to process those IRQs. + */ + target_write_u32(target, FLASH_FMA, 0); target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_MERASE); /* Wait until erase complete */ diff --git a/src/flash/nor/stellaris.h b/src/flash/nor/stellaris.h index 4de4f00f..a4693235 100644 --- a/src/flash/nor/stellaris.h +++ b/src/flash/nor/stellaris.h @@ -53,18 +53,19 @@ struct stellaris_flash_bank /* STELLARIS control registers */ #define SCB_BASE 0x400FE000 -#define DID0 0x000 -#define DID1 0x004 -#define DC0 0x008 -#define DC1 0x010 -#define DC2 0x014 -#define DC3 0x018 -#define DC4 0x01C - -#define RIS 0x050 -#define RCC 0x060 -#define PLLCFG 0x064 -#define RCC2 0x070 +#define DID0 0x000 +#define DID1 0x004 +#define DC0 0x008 +#define DC1 0x010 +#define DC2 0x014 +#define DC3 0x018 +#define DC4 0x01C + +#define RIS 0x050 +#define RCC 0x060 +#define PLLCFG 0x064 +#define RCC2 0x070 +#define NVMSTAT 0x1a0 /* "legacy" flash memory protection registers (64KB max) */ #define FMPRE 0x130 |