Hi is any of this useful?
using x470 Hero vii Asus motherboard
flashrom -p internal -r BACKUP.ROM
Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns). Found chipset "AMD FP4". Enabling flash write... FCH device found but SMBus revision 0x59 does not match known values. Please report this to flashrom@flashrom.org and include this log and the output of lspci -nnvx, thanks!. Could not determine chipset generation.PROBLEMS, continuing anyway No EEPROM/flash device found. Note: flashrom can never write if the flash chip isn't found automatically.
=========== lspci -nnvx SMBus ===== 00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:790b] (rev 59) Subsystem: ASUSTeK Computer Inc. FCH SMBus Controller [1043:8747] Flags: 66MHz, medium devsel Kernel driver in use: piix4_smbus Kernel modules: i2c_piix4, sp5100_tco 00: 22 10 0b 79 03 04 20 02 59 00 05 0c 00 00 80 00 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 47 87 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00