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# U-boot script for tizen RPI4
setenv legacy_boot_part 0x1
setenv legacy_rootfs_part 0x2
setenv legacy_ramdisk_part 0x7
setenv legacy_ramdisk-recovery_part 0x8
setenv legacy_inform_part 0x9
if test -z "${devtype}"; then
if test "${target}" = "mmc0"; then;
setenv devtype mmc
fi
if test "${target}" = "usb0"; then;
setenv devtype usb
fi
fi
# find 'inform' partition
setenv informpart $legacy_inform_part
part number $devtype $devnum "inform" informpart
if test -z "${informpart}"; then;
echo No \"inform\" partition found.
exit
fi
setenv partition_ab "a"
if test -e $devtype $devnum:$informpart $slotfile; then;
ext4load $devtype $devnum:$informpart $slot_addr $slotfile;
if itest.b *${slot_addr} == 0x62; then;
setenv partition_ab "b"
fi
fi
echo "boot from slot_${partition_ab}"
# find the boot partition
setenv bootpart $legacy_boot_part
part number $devtype $devnum "boot_${partition_ab}" bootpart
if test -z "${bootpart}"; then;
echo No \"boot_${partition_ab}\" partition found.
exit
fi
# check if we need to let distro_boot to switch to boot_b
if test "0x${distro_bootpart}" -ne "${bootpart}"; then
# Load the environmet from partition_b
echo "Loading uboot.env from boot_${partition_ab}"
load $devtype $devnum:$bootpart 0x02400000 uboot.env
env import -b 0x02400000 0x4000
exit
fi
# set sane defaults
setenv partition_name "ramdisk"
if test -z "${bootmode}"; then;
setenv bootmode "normal"
fi
# check rebootparamfile
if test -e $devtype $devnum:$informpart $rebootparamfile; then;
ext4load $devtype $devnum:$informpart $rebootparam_addr $rebootparamfile;
if itest.l *${rebootparam_addr} == ${upgrade_val}; then;
setenv partition_name "ramdisk-recovery"
setenv bootmode "fota"
if test -e $devtype $devnum:$informpart $upgradetypefile; then;
ext4load $devtype $devnum:$informpart $upgradetype_addr $upgradetypefile;
if itest.l *${upgradetype_addr} == ${upgradetype_online_val}; then;
setenv partition_name "ramdisk"
fi
fi
elif itest.l *${rebootparam_addr} == ${recovery_val}; then;
setenv partition_name "ramdisk-recovery"
setenv bootmode "recovery"
elif itest.l *${rebootparam_addr} == ${download_val}; then;
setenv partition_name "ramdisk-recovery"
setenv bootmode "flash"
elif itest.l *${rebootparam_addr} == ${nodef_val}; then;
echo "This reboot parameter is not supported...";
fi
fi
# This is for jumping to flash mode on u-boot.
if test "${bootmode}" = "download"; then;
setenv partition_name "ramdisk-recovery"
setenv bootmode "flash"
fi
if test "${bootmode}" = "flash"; then;
if test -n "${ipaddr}"; then;
ip_opt=\"ip=${ipaddr}::${gateway}:${netmask}\"
fi
fi
# find the selected ramdisk variant partition
if test "${bootmode}" != "rootfs"; then;
setenv tmp_env "setenv ramdiskpart \"\$\{legacy_${partition_name}_part\}\""
run tmp_env
setenv tmp_env
part number $devtype $devnum "${partition_name}_${partition_ab}" ramdiskpart
else
setenv ramdiskpart
fi
# load ramdisk
if test -n "${ramdiskpart}"; then;
# Find the ramdisk offset and block count
part start $devtype $devnum $ramdiskpart ramdisk_start
part size $devtype $devnum $ramdiskpart ramdisk_size
# Load it
$devtype dev $devnum;
$devtype read $ramdisk_addr_r $ramdisk_start $ramdisk_size;
# Set to ramdisk_size with real partition size. (Need to multiply block-size 0x200)
setexpr ramdisk_size $ramdisk_size * 200
fi
# check loaded ramdisk
if test -e $devtype $devnum:$ramdiskpart sbin/init; then;
echo "Using ramdisk from partition ${ramdiskpart}";
# boot from ram0 if there is sbin
setenv rootargs root=/dev/ram0 rw
elif itest.w *$ramdisk_addr_r == 0x8b1f; then; # check for gzip (initramfs) magic
echo "Using initramfs from partition ${ramdiskpart}";
setenv rootargs
else
echo "Booting without initrd/initramfs";
setenv bootmode normal
setenv ramdisk_size 0
# find the rootfs partition
setenv rootfspart $legacy_rootfs_part
part number $devtype $devnum "rootfs_${partition_ab}" rootfspart
if test -z "${rootfspart}"; then;
echo No \"rootfs_${partition_ab}\" partition found.
exit
fi
# simplified hex2dec conversion for 0x1..0x13->1..19 range
if itest $rootfspart > 9; then;
setexpr rootfspart $rootfspart + 6
else
setexpr rootfspart $rootfspart + 0
fi
if test "${devtype}" = "mmc"; then;
setenv rootargs root=/dev/mmcblk${devnum}p${rootfspart} rw rootwait
elif test "${devtype}" = "usb"; then;
setenv rootargs root=/dev/sda${rootfspart} rw rootwait
fi
fi
# setting console device if noting is set
if test -z "${console}"; then;
if test "$board_name" = "5 Model B"; then;
fdt addr $fdt_addr;
fdt get value uart "/axi/pcie@120000/rp1/serial@30000" status;
if test "$uart" = "okay"; then;
setenv console "console=ttyAMA0,115200n8";
else
setenv console "console=ttyAMA10,115200n8 earlycon";
fi
else
setenv console "console=ttyS0,115200n8 earlycon=uart8250,mmio32,0xfe215040";
fi
fi
echo "console: ${console}"
setenv bootargs \"${tizen_bootarg} ${rootargs} bootmode=${bootmode} partition_ab=${partition_ab} ${console} ${opts} ${ip_opt}\"
setenv boot_prefixes \"/\"
setexpr tizen_kernel_addr_r $ramdisk_addr_r + $ramdisk_size
echo "Searching for kernel in"; for prefix in $boot_prefixes; do
echo $prefix$kernel on partition $bootpart;
if load $devtype $devnum:$bootpart $tizen_kernel_addr_r $prefix$kernel; then;
echo ${bootmode} "boot";
# use fdt already preloaded by the firmware available at $fdt_addr
if test "$kernel" = "zImage"; then;
bootz $tizen_kernel_addr_r $ramdisk_addr_r:$ramdisk_size $fdt_addr;
else
booti $tizen_kernel_addr_r $ramdisk_addr_r:$ramdisk_size $fdt_addr;
fi
fi
done
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