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| author | Johannes Zink <j.zink@pengutronix.de> | 2023-03-24 19:29:52 +0100 |
|---|---|---|
| committer | Robert Schwebel <r.schwebel@pengutronix.de> | 2023-03-27 18:07:53 +0200 |
| commit | 90e36b542d553850a51e9b399d18549a3f4751e6 (patch) | |
| tree | 6eeaebcd4bf44d8653bb8a99ec4e3366ccdd14b0 /doc | |
| parent | a194368d1bbc482f9d0a55eecf4bd466f4878b41 (diff) | |
| download | DistroKit-90e36b542d553850a51e9b399d18549a3f4751e6.tar.gz DistroKit-90e36b542d553850a51e9b399d18549a3f4751e6.tar.xz | |
doc: v8a: ROCK 3A: add documentation on writing barebox-only images to SD-Card and NOR Flash
It may be useful to sometimes only write a barebox image to SD-Card,
e.g. for chainloading, TFTP-Boot or if Android Fastboot is used for
flashing the actual full image to a storage medium. Add documentation
on which image to use.
Also add a short section about how to write barebox to the fallback
NOR SPI Flash on the ROCK 3A board.
Signed-off-by: Johannes Zink <j.zink@pengutronix.de>
Link: https://lore.pengutronix.de/20230324182952.501117-1-j.zink@pengutronix.de
Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/hardware_v8a_rock3a.rst | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/doc/hardware_v8a_rock3a.rst b/doc/hardware_v8a_rock3a.rst index 75acd4d..3aa5a62 100644 --- a/doc/hardware_v8a_rock3a.rst +++ b/doc/hardware_v8a_rock3a.rst @@ -5,7 +5,11 @@ Boot Media ---------- Copy the image ``platform-v8a/images/rock3a.img`` onto a microSD card. Put the -microSD card into the Rock 3A and boot it. +microSD card into the Rock 3A and boot it, the system will autoboot to linux. + +If you just want to boot to barebox instead of a full linux image from microSD card +(e.g. for chainloading or tftpboot), +copy the image ``platform-v8a/images/barebox-rock3a.norimg`` onto a microSD card instead. Alternatively, you may put the Rock 3A into MASKROM mode following the `Rock 3 Hardware User Manual <https://wiki.radxa.com/Rock3/hardware/3a>`_ and boot @@ -19,6 +23,10 @@ Once Barebox is booted, copy the image ``platform-v8a/images/rock3a.img`` via tftp or NFS to the eMMC to persist it. Disable MASKROM mode and reboot the board to start from eMMC. +Once booted to linux, you can write ``platform-v8a/images/barebox-rock3a.norimg`` using mtd-utils +to the NOR flash, which can then be used as fallback boot source whenever booting from microSD +card or eMMC fails. + Serial Console -------------- |