The Raspberry Pi 4 board can boot the image from USB memory.
But current meta-raspberrypi supports only SD boot.
This commit allows switching SD boot to other device.
For example, if you want to use USB boot, please define
the following parameters in your conf/local.conf file.
CMDLINE_ROOT_PARTITION = "/dev/sda2"
BOOT_MEDIA = "usb"
v4: Update extra-build-config.md to explain more detail for new variable.
v3: Changed variable name to "BOOT_MEDIA" (was "BOOT_DEVTIPE").
v2: Set existing microSD parameter as default. User can overwrite
some parameters.
Signed-off-by: Harunobu Kurokawa <harunobu.kurokawa.dn@renesas.com>
Modify boot.cmd.in from recipe rpi-u-boot-scr to create uboot.env
in the /boot partition when using U-Boot. This change is required
to successfully run fw_printenv from the user space.
Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
For raspberrypi3-64 we need to use the Image or Image.gz format with u-boot
instead of the legacy uImage format. We also need to issue the 'booti' command
to boot the kernel instead of 'bootm'.
Signed-off-by: Paul Barker <pbarker@toganlabs.com>
