The mmc probing order has become unpredictable
due to recent linux kernel changes, therefore devices
like the raspberry pi that have two mmc interface most
of the time can't boot from the hard-coded root path.
Modify the u-boot script to fetch the PARTUUID of the
second partition of the sd card and use it to put
root=PARTUUID=<xxx> in the command line passed to
the dom0 kernel.
Reviewed-by: Diego Sueiro <diego.sueiro@arm.com>
Reviewed-by: Bertrand Marquis <bertrand.marquis@arm.com>
Reviewed-by: Christopher Clark <christopher.w.clark@gmail.com>
Tested-by: Christopher Clark <christopher.w.clark@gmail.com>
Signed-off-by: Luca Fancellu <luca.fancellu@arm.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Add a new xen-rpi-u-boot-scr recipe to PROVIDE u-boot-default-script
instead of using a bbappend to rpi-u-boot-scr.
This allows the new recipe to be selected by indicating it as
PREFERRED_PROVIDER of u-boot-default-script, and then do that in the
Xen on Raspberry Pi 4 config file, xen-raspberrypi4-64.inc.
Signed-off-by: Christopher Clark <christopher.w.clark@gmail.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Apply update to the device tree to allow Xen 4.14 to boot.
Suggested-by: Bertrand Marquis <bertrand.marquis@arm.com>
Signed-off-by: Christopher Clark <christopher.w.clark@gmail.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
fatload needs to read from mmc 1:1 to find the Xen hypervisor and Linux
kernel binaries with the current Yocto Linux 5.10 kernel.
Add boot messages to to the u-boot script to indicate the size of files
loaded for easier confirmation of load success.
Signed-off-by: Christopher Clark <christopher.w.clark@gmail.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
This string has been preferred since 2014 -- ref: Xen commit a860dfeec
and also current documentation: docs/misc/arm/device-tree/booting.txt
Signed-off-by: Christopher Clark <christopher.w.clark@gmail.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
The GIC that is needed by Xen can be enabled via the rpi-config recipe
variable. Fixes the build after the upstream recipe changed recently.
Signed-off-by: Christopher Clark <christopher.w.clark@gmail.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Replaces the prior use of earlyprintk which is an x86-specific option.
Signed-off-by: Christopher Clark <christopher.w.clark@gmail.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
A Xen-specific u-boot script is needed for launching Xen, and the GIC
(interrupt controller) needs to be enabled.
Since this is both Xen-specific and Raspberry Pi-specific, use a
dynamic layer to conditionally enable the recipes when both
meta-virtualization and meta-raspberrypi are in use together.
Signed-off-by: Christopher Clark <christopher.w.clark@gmail.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
