diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/flash/lpc2000.c | 16 | ||||
| -rw-r--r-- | src/flash/lpc2000.h | 1 |
2 files changed, 13 insertions, 4 deletions
diff --git a/src/flash/lpc2000.c b/src/flash/lpc2000.c index d887c805..1f689cc5 100644 --- a/src/flash/lpc2000.c +++ b/src/flash/lpc2000.c @@ -91,7 +91,10 @@ int lpc2000_register_commands(struct command_context_s *cmd_ctx) int lpc2000_build_sector_list(struct flash_bank_s *bank) { lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv; - + + /* default to a 4096 write buffer */ + lpc2000_info->cmd51_max_buffer = 4096; + if (lpc2000_info->variant == 1) { int i = 0; @@ -156,7 +159,12 @@ int lpc2000_build_sector_list(struct flash_bank_s *bank) /* variant 2 has a uniform layout, only number of sectors differs */ switch (bank->size) { + case 4 * 1024: + lpc2000_info->cmd51_max_buffer = 1024; + num_sectors = 1; + break; case 8 * 1024: + lpc2000_info->cmd51_max_buffer = 1024; num_sectors = 2; break; case 16 * 1024: @@ -484,7 +492,7 @@ int lpc2000_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count) } /* allocate a working area */ - if (target_alloc_working_area(target, 4096, &download_area) != ERROR_OK) + if (target_alloc_working_area(target, lpc2000_info->cmd51_max_buffer, &download_area) != ERROR_OK) { ERROR("no working area specified, can't write LPC2000 internal flash"); return ERROR_FLASH_OPERATION_FAILED; @@ -533,8 +541,8 @@ int lpc2000_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count) while (bytes_remaining > 0) { u32 thisrun_bytes; - if (bytes_remaining >= 4096) - thisrun_bytes = 4096; + if (bytes_remaining >= lpc2000_info->cmd51_max_buffer) + thisrun_bytes = lpc2000_info->cmd51_max_buffer; else if (bytes_remaining >= 1024) thisrun_bytes = 1024; else if ((bytes_remaining >= 512) || (!lpc2000_info->cmd51_can_256b)) diff --git a/src/flash/lpc2000.h b/src/flash/lpc2000.h index bf7358f6..976ac919 100644 --- a/src/flash/lpc2000.h +++ b/src/flash/lpc2000.h @@ -32,6 +32,7 @@ typedef struct lpc2000_flash_bank_s int cmd51_can_256b; int cmd51_can_8192b; int calc_checksum; + int cmd51_max_buffer; } lpc2000_flash_bank_t; enum lpc2000_status_codes |