make sure that PIN WP and HOLD must pull up to vcc
or use other spi flash test your circuit connect ok！！
发自 网易邮箱大师 On 07/27/2016 00:35, Andrius Montvydas wrote:
hello,
I had a bad bios flash, so i wanted to flash original bios using flashrom but it failed.
I was using Raspberry Pi 3, bios chip is winbond W25Q64FW
flashrom v0.9.9-r1954 on Linux 4.4.13-v7+ (armv7l) flashrom is free software, get the source code at https://flashrom.org
Calibrating delay loop... OK. Found Winbond flash chip "W25Q64.W" (8192 kB, SPI) on linux_spi. Reading old flash chip contents... done. Erasing and writing flash chip... FAILED at 0x00000000! Expected=0xff, Found=0x00, failed byte count from 0x00000000-0x00000fff: 0x1000 ERASE FAILED! Reading current flash chip contents... done. Looking for another erase function. FAILED at 0x00000000! Expected=0xff, Found=0x00, failed byte count from 0x00000000-0x00007fff: 0x8000 ERASE FAILED! Reading current flash chip contents... done. Looking for another erase function. FAILED at 0x00000000! Expected=0xff, Found=0x00, failed byte count from 0x00000000-0x0000ffff: 0x10000 ERASE FAILED! Reading current flash chip contents... done. Looking for another erase function. FAILED at 0x00000000! Expected=0xff, Found=0x00, failed byte count from 0x00000000-0x007fffff: 0x800000 ERASE FAILED! Reading current flash chip contents... done. Looking for another erase function. FAILED at 0x00000000! Expected=0xff, Found=0x00, failed byte count from 0x00000000-0x007fffff: 0x800000 ERASE FAILED! Looking for another erase function. No usable erase functions left. FAILED! Uh oh. Erase/write failed. Checking if anything has changed. Reading current flash chip contents... done. Apparently at least some data has changed. Your flash chip is in an unknown state. Please report this on IRC at chat.freenode.net (channel #flashrom) or mail flashrom@flashrom.org, thanks! pi@raspberrypi:~ $
Thank you for any information.
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Andrius M.