diff options
| author | Andrej Kazmin <funnyfish@funnyfish.botik.ru> | 2014-08-22 11:35:06 +0400 |
|---|---|---|
| committer | Andreas Fritiofson <andreas.fritiofson@gmail.com> | 2015-02-11 23:22:40 +0000 |
| commit | 7c5925783416fc860f335cf9d403ec9ee0534390 (patch) | |
| tree | 6eb5fb78cce3e7abf7e29dcf4e1cb8460ab64d20 /src/flash/nor | |
| parent | 30f802493d1237eeef21282d4224ed89d8a4d480 (diff) | |
flash/nor/at91samd: add small delay before checking nvm status
OpenOCD's SWD subsystem doesn't currently have a consistent WAIT
handling (i.e. it doesn't ever retry, just returns an error), so right
after a row write a small delay is needed as AHB access is stalled
during the flashing operation.
The issue was exposed with a samd20 using ftdi SWD transport.
Change-Id: I07d99d3a96845cc689c3904a41f4d41344f200aa
Signed-off-by: Andrej Kazmin <funnyfish@funnyfish.botik.ru>
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2268
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Diffstat (limited to 'src/flash/nor')
| -rw-r--r-- | src/flash/nor/at91samd.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/flash/nor/at91samd.c b/src/flash/nor/at91samd.c index ece1fd20..de0f1cc7 100644 --- a/src/flash/nor/at91samd.c +++ b/src/flash/nor/at91samd.c @@ -658,6 +658,9 @@ static int samd_write_row(struct flash_bank *bank, uint32_t address, return res; } + /* Access through AHB is stalled while flash is being programmed */ + usleep(200); + error = samd_check_error(bank->target); if (error) return ERROR_FAIL; |