In message 20060103205317.0711.LARK@linux.net.cn you wrote:
In my situation, S29AL016M works in x8 mode, which has different command sequence from in x16 mode.
If you look closer it is not so different at all.
x16 mode sector erase addr[0x555] = 0xAA; addr[0x2AA] = 0x55; addr[0x555] = 0x80; addr[0x555] = 0xAA; addr[0x2AA] = 0x55; addr[0x000] = 0x30;
...
x8 mode sector erase addr[0xAAA] = 0xAA; addr[0x555] = 0x55; addr[0xAAA] = 0x80; addr[0xAAA] = 0xAA; addr[0x555] = 0x55; addr[0x000] = 0x30;
0x555 = 0xAAA >> 1 0x2AA = 0x555 >> 1
I have little knowledge about other flash chips, so it is not easy for me to write clean patch for cfi_flash.c, although I want to.
The code is actually the very same, just taking into account the different addressing mode.
Best regards,
Wolfgang Denk