On 19/03/2020 15.52, Kuldeep Singh wrote:
Hi Vignesh,
I have a board for which doing "sf erase 0x100000 0x80000" consistently causes the external watchdog circuit to reset the board. Make sure to pet the watchdog during slow operations such as erasing or writing large areas of a spi nor flash.
I also stumbled with the same problem of board resetting but it was in order of MBs and not in KBs. Board gets reset while performing burst erase/write(for 48M erase, resets at 16M~) and read operation on 16M+. I provided fix [1] in driver itself(add 1us delay) assuming it to be soc specific which solves problem for me and able to perform complete flash size operations.
Eh, but is it the short delay that fixes the problem you saw, or the implicit WATCHDOG_RESET() done inside the udelay() function?
Rasmus