spinor

SPI NOR Flash commands: detect, erase, read and write.

Usage

xfel spinor

xfel spinor erase <address> <length>

xfel spinor read <address> <length> <file>

xfel spinor write <address> <file>

Argument	Description
`<address>`	Flash start address
`<length>`	Number of bytes to read / erase
`<file>`	File to save read data, or file to write

These commands operate on SPI NOR Flash. Run xfel spinor first to detect the Flash model and capacity before performing any read/write operations.

erase: erases the specified region (sets it to 0xFF);
read: reads Flash data to a local file;
write: writes a local file to Flash (erase and program are handled internally).

note

SPI Flash operations depend on the chip's SPI initialization capability.

Detect SPI NOR Flash:

xfel spinor

Sample output:

Found spi nor flash 'W25Q128' with 16777216 bytes

Erase and write U-Boot:

xfel spinor erase 0x000000 0x80000
xfel spinor write 0x000000 u-boot.bin

Read Flash contents to a file:

xfel spinor read 0x000000 0x100000 flash_dump.bin