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# Set the fdt address to what came from the GPU, so we can edit it
fdt addr ${fdt_addr}
# Pull the bootargs that the GPU has edited
fdt get value bootargs /chosen bootargs
# Set module load addresses
setenv xen_loadaddr "0x00200000"
setenv kernel_loadaddr "0x00400000"
# Add some space to the fdt so we can edit it
fdt resize 0x1000
echo Add boot arguments for Xen
fdt set /chosen xen,xen-bootargs "console=dtuart dtuart=/soc/serial@7e215040 dom0_mem='@@RPI_DOM0_MEM@@' @@RPI_DEBUG_XEN_ARGS@@"
echo Add a dom0 node to chosen to put Linux boot information in
fdt mknode /chosen dom0
echo Set this for the Linux boot command
fdt set /chosen/dom0 compatible "multiboot,module"
# Tell Xen where PCI is
fdt set /scb/pcie@7d500000 device_type "pci"
# Workaround to fix:
# "Unable to retrieve address 0 for /scb/pcie@7d500000/pci@1,0/usb@1,0"
fdt rm /scb/pcie@7d500000/pci@1,0/usb@1,0
echo Delay to allow the MMC card to be ready
sleep 1
# Retrieve PARTUUID for the rootfs partition of the sdcard
part uuid mmc 1:2 rootfs_partuuid
echo Add boot arguments for dom0
setenv dom0_bootargs "console=hvc0 earlycon=xenboot debug root=PARTUUID=${rootfs_partuuid} rootwait"
fdt set /chosen xen,dom0-bootargs \"${dom0_bootargs}\"
echo Load Xen into memory
fatload mmc 1:1 ${xen_loadaddr} xen
echo Xen loaded, size: 0x$filesize
echo Load Linux kernel into memory
fatload mmc 1:1 ${kernel_loadaddr} Image
setenv kernel_size 0x$filesize
echo Linux loaded, size: 0x$filesize
echo Set the address and size for the Linux kernel so Xen can pick it up
fdt set /chosen/dom0 reg <${kernel_loadaddr} ${kernel_size}>
# Define the size and address cells
fdt set /chosen '#size-cells' <1>
fdt set /chosen '#address-cells' <1>
# Display the chosen fdt section - can be important for debugging
fdt print /chosen
echo Boot Xen
booti ${xen_loadaddr} - ${fdt_addr}
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