I have some troubles loading the flash idcode from an spi-flash in u-boot.
Setup: fpga is on a custom pcb. hw system with microblaze 100MHz, axi qspi module running standard mode, transaction-width 8, ratio 16x1, and with fifo with 16 depth.
When booting (with petalinux-boot --jtag --u-boot) I first get a XILSPI error: XILSPI error: spi_xfer: Xfer timeout when trying to fetch the id-code. This is probably from the following lines in the xilinx_spi.c driver: spi_xfer () function
Later after "Hit any key to stop autoboot", the flash ID is successfully read. Here is the output:
U-Boot 2014.07 (Apr 29 2015 - 08:22:41)
XILSPI error: spi_xfer: Xfer timeout
SF: Failed to get idcodes
*** Warning - spi_flash_probe() failed, using default environment
Warning: Your board does not use generic board. Please read
doc/README.generic-board and take action. Boards not
upgraded by the late 2014 may break or be removed.
U-BOOT for 2petalinuxtest
BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
BOOTP broadcast 4
BOOTP broadcast 5
Retry count exceeded
Hit any key to stop autoboot: 0
SF: Detected MX25L25635F with page size 256 Bytes, erase size 64 KiB, total 32 MiB
SF: 6291456 bytes @ 0x460000 Read: OK
Wrong Image Format for bootm command
ERROR: can't get kernel image!
I had to add #define CONFIG_SPI_FLASH_MACRONIX in /subsystems/linux/configs/u-boot/platform-top.h to support the macronix flash.
Also I have a warning that my board does not use a generic board and refers me to README.generic-board that tells me to
arch/<arch>/config.mk file to include:
__HAVE_ARCH_GENERIC_BOARD := y
and test it with a suitable board, as follows.
Adding Support for your Board
To enable generic board for your board, define CONFIG_SYS_GENERIC_BOARD in
your board config header file.
Where is the board config header located, and is this something that is needed to be changed or a warning due to not getting read from the flash?