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- fix issue with luminary flash driver and tail bytes 

git-svn-id: svn://svn.berlios.de/openocd/trunk@1191 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
ntfreak 2008-11-27 17:19:12 +00:00
parent 3a636951eb
commit b992f7ba10
1 changed files with 43 additions and 12 deletions
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55
src/flash/stellaris.c
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@ -815,7 +815,10 @@ int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count
stellaris_flash_bank_t *stellaris_info = bank->driver_priv; stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
target_t *target = bank->target; target_t *target = bank->target;
u32 address = offset; u32 address = offset;
u32 flash_cris,flash_fmc; u32 flash_cris, flash_fmc;
u32 words_remaining = (count / 4);
u32 bytes_remaining = (count & 0x00000003);
u32 bytes_written = 0;
u32 retval; u32 retval;
if (bank->target->state != TARGET_HALTED) if (bank->target->state != TARGET_HALTED)
@ -838,7 +841,7 @@ int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count
return ERROR_FLASH_OPERATION_FAILED; return ERROR_FLASH_OPERATION_FAILED;
} }
if((offset & 3) || (count & 3)) if (offset & 0x3)
{ {
LOG_WARNING("offset size must be word aligned"); LOG_WARNING("offset size must be word aligned");
return ERROR_FLASH_DST_BREAKS_ALIGNMENT; return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
@ -856,10 +859,10 @@ int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count
target_write_u32(target, FLASH_MISC, PMISC|AMISC); target_write_u32(target, FLASH_MISC, PMISC|AMISC);
/* multiple words to be programmed? */ /* multiple words to be programmed? */
if (count > 0) if (words_remaining > 0)
{ {
/* try using a block write */ /* try using a block write */
if ((retval = stellaris_write_block(bank, buffer, offset, count/4)) != ERROR_OK) if ((retval = stellaris_write_block(bank, buffer, offset, words_remaining)) != ERROR_OK)
{ {
if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE) if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
{ {
@ -878,13 +881,13 @@ int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count
} }
else else
{ {
buffer += count * 4; buffer += words_remaining * 4;
address += count * 4; address += words_remaining * 4;
count = 0; words_remaining = 0;
} }
} }
while (count > 0) while (words_remaining > 0)
{ {
if (!(address & 0xff)) if (!(address & 0xff))
LOG_DEBUG("0x%x", address); LOG_DEBUG("0x%x", address);
@ -898,13 +901,41 @@ int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count
do do
{ {
target_read_u32(target, FLASH_FMC, &flash_fmc); target_read_u32(target, FLASH_FMC, &flash_fmc);
} } while (flash_fmc & FMC_WRITE);
while (flash_fmc & FMC_WRITE);
buffer += 4; buffer += 4;
address += 4; address += 4;
count -= 4; words_remaining--;
} }
/* Check acess violations */
if (bytes_remaining)
{
u8 last_word[4] = {0xff, 0xff, 0xff, 0xff};
int i = 0;
while(bytes_remaining > 0)
{
last_word[i++] = *(buffer + bytes_written);
bytes_remaining--;
bytes_written++;
}
if (!(address & 0xff))
LOG_DEBUG("0x%x", address);
/* Program one word */
target_write_u32(target, FLASH_FMA, address);
target_write_buffer(target, FLASH_FMD, 4, last_word);
target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_WRITE);
/* LOG_DEBUG("0x%x 0x%x 0x%x",address,buf_get_u32(buffer, 0, 32),FMC_WRKEY | FMC_WRITE); */
/* Wait until write complete */
do
{
target_read_u32(target, FLASH_FMC, &flash_fmc);
} while (flash_fmc & FMC_WRITE);
}
/* Check access violations */
target_read_u32(target, FLASH_CRIS, &flash_cris); target_read_u32(target, FLASH_CRIS, &flash_cris);
if (flash_cris & (AMASK)) if (flash_cris & (AMASK))
{ {