[U-Boot-Users] [PATCH] CFI driver AMD Command Set Top boot geometry reversal, etc.

[Tolunay Orkun <listmember@orkun.us>]

Timur Tabi wrote:
> Tolunay Orkun wrote:
>> This patch:
>>
>>   * Adds support for AMD command set Top Boot flash geometry reversal
>>   * Adds support for displaying command set, manufacturer id and
>>     device ids (flinfo)
>>   * Makes flinfo output to be consistent when CFG_FLASH_EMPTY_INFO 
>> defined
>>   * Removes outdated change history (refer to git log instead)
>
> This patch looks good, but I get this from flinfo:
>
> Bank # 1: CFI conformant FLASH (16 x 16)  Size: 8 MB in 135 Sectors
>   AMD Standard command set, Manufacturer ID: 0xFF, Device ID: 0xFF
>   Erase timeout: 16384 ms, write timeout: 1 ms
>
> Are these the correct values for manufacturer ID and device ID?
>
Thanks for testing the patch. Not correct. It is cosmetic in your case 
since your flash CFI is version 1.1 or later.

It looks like I cannot access JEDEC IDs while still in CFI Query mode in 
AMD style flash (unlike Intel). Bummer :( I have to explicitly send the 
autoselect command to read out and switch back to CFI Query mode again.

I will improve the patch. Also, while browsing Spansion web site, I came 
across with 3 byte Device IDs. So, we have to improve on that as well.

Best regards,
Tolunay