supported flashes?
Hi to all,
It's the first time I write to this list.
I am involved now in a new design based the MPC8272 processor.
I have choosen U-boot as my booter am by now I am trying to select the flash memory, so I have to determine which are supported.
And this is not very easy, because I couldn't find any doc related to hardware support. I have looked at the code and I found lots of files about flash support. In particular:
drivers/cfi_flash.c
board/mpc8260ads/flash.c
common/flash.c
common/env_flash.c
I have concluded that cfi_flash.c gives support for all those flashes which implements the JEDEC CFI interface with AMD or Intel command sets, and mpc8260ads/flash.c gives support for the flash in the ADS board (which is not CFI at all).
Am I wrong? What about the other files? Is there anywhere a list of supported flashes?
In conclusion, can i suppose that any CFI flash with the appropriate command set will be supported by u-boot.
Thanks to all
Alex Bastos
Quoted 6 lines · In message <51DB8827D393D411BB69003048003F46FDCE51@TVESNTR> you wrote:
And this is not very easy, because I couldn't find any doc related to hardware support. I have looked at the code and I found lots of files about flash support. In particular:
drivers/cfi_flash.c
-> generic flash driver for CFI conformant flash chips
Quoted 1 line
board/mpc8260ads/flash.c
In general: board/<name>/flash.c:
-> board specific (optimized) flash driver suporting only the
possible flash chip configurations on a specific board.
Quoted 1 line
common/flash.c
-> common flash handling routines
Quoted 1 line
common/env_flash.c
-> code to deal with saving environment variables in flash memory
Quoted 2 lines
Am I wrong? What about the other files? Is there anywhere a list of supported flashes?
See include/flash.h for a list ;-)
Quoted 2 lines
In conclusion, can i suppose that any CFI flash with the appropriate command set will be supported by u-boot.
Yes. And a lot more.
Best regards,
Wolfgang Denk
Signature · 4 lines
Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de A direct quote from the Boss: "We passed over a lot of good people to get the ones we hired."