Hi again
I have now tryed with frser-duino from "Urja Rannikko". With other chips i have better results (for example with the M25P10, this chips is working now). But the MX25L6445E is still not working.
After a long time flashrom trys other erase options, but all failed. Have a look here (cut from log): ...............-0x0f5fff:E, 0x0f6000-0x0f6fff:E, 0x0f7000-0x0f7fff:E, 0x0f8000-0x0f8fff:E, 0x0f9000-0x0f9fff:E, 0x0fa000-0x0fafff:E, 0x0fb000-0x0fbfff:E, 0x0fc000-0x0fcfff:E, 0x0fd000-0x0fdfff:E, 0x0fe000-0x0fefff:E, 0x0ff000-0x0fffff:E, 0x100000-0x100fff:EFAILED at 0x00100000! Expected=0xff, Found=0xeb, failed byte count from 0x00100000-0x00100fff: 0xfe5 ERASE FAILED! Reading current flash chip contents... done. Looking for another erase function. Trying erase function 1... 0x000000-0x007fff:S, 0x008000-0x00ffff:S, 0x010000-0x017fff:S, 0x018000-0x01ffff:S, 0x020000-0x027fff:S, 0x028000-0x02ffff:S, 0x030000-0x037fff:S, 0x038000-0x03ffff:S, 0x040000-0x047fff:S, 0x048000-0x04ffff:S, 0x050000-0x057fff:S, 0x058000-0x05ffff:S, 0x060000-0x067fff:S, 0x068000-0x06ffff:S, 0x070000-0x077fff:S, 0x078000-0x07ffff:S, 0x080000-0x087fff:S, 0x088000-0x08ffff:S, 0x090000-0x097fff:S, 0x098000-0x09ffff:S, 0x0a0000-0x0a7fff:S, 0x0a8000-0x0affff:S, 0x0b0000-0x0b7fff:S, 0x0b8000-0x0bffff:S, 0x0c0000-0x0c7fff:S, 0x0c8000-0x0cffff:S, 0x0d0000-0x0d7fff:S, 0x0d8000-0x0dffff:S, 0x0e0000-0x0e7fff:S, 0x0e8000-0x0effff:S, 0x0f0000-0x0f7fff:S, 0x0f8000-0x0fffff:S, 0x100000-0x107fff:EFAILED at 0x00100000! Expected=0xff, Found=0xeb, failed byte count from 0x00100000-0x00107fff: 0x7f69 ERASE FAILED! Reading current flash chip contents... done. Looking for another erase function. Trying erase function 2... 0x000000-0x00ffff:S, 0x010000-0x01ffff:S, 0x020000-0x02ffff:S, 0x030000-0x03ffff:S, 0x040000-0x04ffff:S, 0x050000-0x05ffff:S, 0x060000-0x06ffff:S, 0x070000-0x07ffff:S, 0x080000-0x08ffff:S, 0x090000-0x09ffff:S, 0x0a0000-0x0affff:S, 0x0b0000-0x0bffff:S, 0x0c0000-0x0cffff:S, 0x0d0000-0x0dffff:S, 0x0e0000-0x0effff:S, 0x0f0000-0x0fffff:S, 0x100000-0x10ffff:EFAILED at 0x00100000! Expected=0xff, Found=0xeb, failed byte count from 0x00100000-0x0010ffff: 0xfb20 ERASE FAILED! Reading current flash chip contents... done. Looking for another erase function. Trying erase function 3... 0x000000-0x7fffff:EFAILED at 0x00100000! Expected=0xff, Found=0xeb, failed byte count from 0x00000000-0x007fffff: 0x26be30 ERASE FAILED! Reading current flash chip contents... done. Looking for another erase function. Trying erase function 4... 0x000000-0x7fffff:EFAILED at 0x00100000! Expected=0xff, Found=0xeb, failed byte count from 0x00000000-0x007fffff: 0x26be30 ERASE FAILED! Looking for another erase function. No usable erase functions left. FAILED!
As you can see it always fails at the same byte count. I am still not sure if this problem is related to serprog/frser-duino. It looks like the chip is write protected or something like that.