u-boot

Files

Josua Mayer 873f6f9a3f board: kobol: helios4: enable ddr odt0 on write for both chip-select

Enabling ODT is required to suppress reflection of the data signal on
DDR write operation. SolidRun Armada 388 SoM only connects M_ODT[0] even
when both chip-select are used.

Enable ODT[0] for both chip-select during write only.

See also commit d09f199097 ("board: solidrun: clearfog: enable ddr odt0
on write for both chip-select") where this was added to SolidRun
Clearfog board which is using the same System on Module but unlike
Helios-4 without ECC memory.

Signed-off-by: Josua Mayer <josua@solid-run.com>

2025-04-16 08:05:15 +02:00

helios4.c

board: kobol: helios4: enable ddr odt0 on write for both chip-select

2025-04-16 08:05:15 +02:00

Kconfig

arm: mvebu: Load U-Boot proper binary in SPL code based on kwbimage header

2021-07-31 09:59:58 +02:00

MAINTAINERS

…

Makefile

…

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.