Re: [U-Boot] [PATCH] MTD: Add support for S25FL032P spi nor-flash

On Monday 23 August 2010 06:31:26 pm Mike Frysinger wrote:

On Monday, August 23, 2010 09:12:16 David Jander wrote:

...

• {

• .idcode1 = SPSN_ID_S25FL032A,
  

• .idcode2 = SPSN_EXT_ID_S25FL032P,
  

• .idmask2 = 0xff00,
  

what does the idcode2 look like such that you need a mask ? -mike

According to the datasheet the RDID command (0x9f) returns the following bytes:

byte 0: Manufacturer ID = 0x01 byte 1,2: Device ID = 0x02, 0x15 (same as S25FL032A) byte 3: Extended ID = 0x4d byte 4,5,6: Spansion reserved (do not use).

byte 4 is read as 0x00 on my part, but due to the above explaination, I cannot say for sure it is always the same, so I had to implement a mask to check for it.

Best regards,