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# This is a boot script for U-Boot with Xen parameters used by yocto machine
# configuration file.
# Generate boot.scr:
# mkimage -c none -A arm -T script -d boot.cmd.xen boot.scr
#
################
xen_name=@@XEN_IMAGE_NAME@@
kernel_name=@@KERNEL_IMAGE@@
rootfs_name=@@RAMDISK_IMAGE@@
@@PRE_BOOTENV@@
for boot_target in ${boot_targets};
do
echo "Trying to load boot images from ${boot_target}"
if test "${boot_target}" = "jtag" ; then
tftpboot @@KERNEL_LOAD_ADDRESS@@ ${kernel_name}
setenv kernel_size 0x$filesize;
tftpboot @@RAMDISK_IMAGE_ADDRESS@@ ${rootfs_name}
setenv ramdisk_size 0x$filesize;
tftpboot @@XEN_LOAD_ADDRESS@@ ${xen_name}
tftpboot @@DEVICETREE_ADDRESS@@ system.dtb
fi
if test "${boot_target}" = "mmc0" || test "${boot_target}" = "mmc1" || test "${boot_target}" = "usb0" || test "${boot_target}" = "usb1"; then
if test "${boot_target}" = "mmc0" || test "${boot_target}" = "mmc1"; then
setenv bootdev mmcblk${devnum}p
fi
if test "${boot_target}" = "usb0" || test "${boot_target}" = "usb1"; then
setenv bootdev sda
fi
echo "Checking for /${xen_name}"
if test -e ${devtype} ${devnum}:${distro_bootpart} /${xen_name}; then
echo "Loading ${xen_name}";
fatload ${devtype} ${devnum}:${distro_bootpart} @@XEN_LOAD_ADDRESS@@ ${xen_name};
fi
echo "Checking for /${kernel_name}"
if test -e ${devtype} ${devnum}:${distro_bootpart} /${kernel_name}; then
echo "Loading ${kernel_name}";
fatload ${devtype} ${devnum}:${distro_bootpart} @@KERNEL_LOAD_ADDRESS@@ ${kernel_name};
setenv kernel_size 0x$filesize;
fi
echo "Checking for /system.dtb"
if test -e ${devtype} ${devnum}:${distro_bootpart} /system.dtb; then
echo "Loading system.dtb";
fatload ${devtype} ${devnum}:${distro_bootpart} @@DEVICETREE_ADDRESS@@ system.dtb;
fi
echo "Checking for /${rootfs_name}"
if test -e ${devtype} ${devnum}:${distro_bootpart} /${rootfs_name} && test "${skip_ramdisk}" != "yes"; then
echo "Loading ${rootfs_name}";
fatload ${devtype} ${devnum}:${distro_bootpart} @@RAMDISK_IMAGE_ADDRESS@@ ${rootfs_name};
setenv ramdisk_size 0x$filesize;
fi
fi
fdt addr @@DEVICETREE_ADDRESS@@
fdt resize 0x1000
fdt get value bootargs /chosen bootargs
fdt set /chosen \#address-cells <0x2>
fdt set /chosen \#size-cells <0x2>
setenv xen_bootargs "console=dtuart dtuart=@@XEN_SERIAL_CONSOLES@@ dom0_mem=@@DOM0_MEM@@ dom0_max_vcpus=@@DOM0_MAX_VCPUS@@ bootscrub=0 vwfi=native @@XEN_CMDLINE_APPEND@@"
fdt set /chosen xen,xen-bootargs \"${xen_bootargs}\"
# Check that env $ramdisk_size is 0 or not.
if test -n ${ramdisk_size}; then
fdt mknod /chosen dom0-ramdisk
fdt set /chosen/dom0-ramdisk compatible "xen,linux-initrd" "xen,multiboot-module" "multiboot,module"
fdt set /chosen/dom0-ramdisk reg <0x0 @@RAMDISK_IMAGE_ADDRESS@@ 0x0 ${ramdisk_size}>
setenv rootfs_param @@KERNEL_ROOT_RAMDISK@@
else
setenv rootfs_param @@KERNEL_ROOT_SD@@
fi
fdt mknod /chosen dom0
fdt set /chosen/dom0 compatible "xen,linux-zimage" "xen,multiboot-module" "multiboot,module"
fdt set /chosen/dom0 reg <0x0 @@KERNEL_LOAD_ADDRESS@@ 0x0 ${kernel_size}>
setenv dom0_bootargs "console=hvc0 earlycon=xen earlyprintk=xen clk_ignore_unused ${rootfs_param}"
fdt set /chosen xen,dom0-bootargs \"${dom0_bootargs}\"
setenv fdt_high 0xffffffffffffffff
@@KERNEL_BOOTCMD@@ @@XEN_LOAD_ADDRESS@@ - @@DEVICETREE_ADDRESS@@
done
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