On Sat, May 24, 2014 at 10:27 PM, Amit Mahadik amitmahadik35@yahoo.com wrote:
Hello All, I am using a custom ARM based development board running u-boot from PNOR memory. However, it does not have support for the Micron SPI flash memory (N25Q064A). I have added support for the micron memory in drivers/mtd/spi/stmicro.c file and included the flag CONFIG_SPI_FLASH_STMICRO in the config file and recompiled the u-boot source source. Then, ran it directly through RAM memory. The new u-boot ran from RAM. Now when I run sf probe 0 command I get the following output Got Idcodes 000000: 00 00 00 00 and the code hangs after this.
Looks like your driver itself is not returning any proper idcode.
What id details you added - I think you're using old u-boot no stmicro.c in current u-boot, please re-base to master and try.
thanks!