u-boot

mirror of https://github.com/AsahiLinux/u-boot synced 2025-02-17 22:49:02 +00:00

History

Josua Mayer e587040706 board: helios-4: add config fragment for spi booting Add a config fragment with required differences for booting from spi flash instead of sd-card (default). Settings for environment location are based on vendor u-boot: https://github.com/kobol-io/u-boot/blob/helios4/include/configs/helios4.h#L59 The fragment can be applied on top of helios4_defconfig by make: make helios4_defconfig spiboot.config Signed-off-by: Josua Mayer <josua@solid-run.com>		2024-03-05 08:27:59 +01:00
..
helios4.c	ddr: marvell: a38x: add support for twin-die combined memory device	2021-02-26 10:22:29 +01:00
Kconfig	arm: mvebu: Load U-Boot proper binary in SPL code based on kwbimage header	2021-07-31 09:59:58 +02:00
MAINTAINERS	arm: mvebu: Add Helios4 Armada 38x initial support	2018-06-12 13:17:19 +02:00
Makefile	arm: mvebu: Add Helios4 Armada 38x initial support	2018-06-12 13:17:19 +02:00
README	Makefile: Rename u-boot-spl.kwb to u-boot-with-spl.kwb	2022-11-07 07:17:55 +01:00
spiboot.config	board: helios-4: add config fragment for spi booting	2024-03-05 08:27:59 +01:00

README

Update from original Marvell U-Boot to mainline U-Boot:
-------------------------------------------------------

Generate the U-Boot image with these commands:

$ make helios4_defconfig
$ make

The resulting image including the SPL binary with the
full DDR setup is "u-boot-with-spl.kwb".

Now all you need to do is copy this image on a SD card.
For example with this command:

$ sudo dd if=u-boot-with-spl.kwb of=/dev/sdX bs=512 seek=1

Please use the correct device node for your setup instead
of "/dev/sdX" here!

Boot selection:
---------------

Before powering up the board, boot selection should be done via the SW1 dip
switch (0: OFF, 1: ON):

 - SPI:     00010
 - SD/eMMC: 00111
 - SATA1:   11100
 - UART:    11110

Boot from UART:
---------------

Connect the on-board micro-USB (CF Pro: CON11, CF Base: CON5)
to your host.

Set the SW1 DIP switches to UART boot (see above).

Run the following command to initiate U-Boot download:

  ./tools/kwboot -p -b u-boot-with-spl.kwb /dev/ttyUSBX

Use the correct UART device node for /dev/ttyUSBX.

When download finishes start your favorite terminal emulator
on /dev/ttyUSBX.