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# U-boot script for tizen RPI4
setenv legacy_ramdisk_part 0x7
setenv legacy_recovery_part 0x8
if test "${target}" = "mmc0"; then;
setenv bootdev mmc
fi
if test "${target}" = "usb0"; then;
setenv bootdev usb
setenv opts "${opts} rootdelay=2"
fi
# find 'inform' partition or use ${mmcinformpart} fallback
part number $bootdev $mmcbootdev "inform" res
if test -n "${res}"; then;
setenv mmcinformpart ${res}
fi
# set sane defaults
setenv partition_name "ramdisk"
setenv partition_ab "a"
setenv partition_fallback ${legacy_ramdisk_part}
if test -e $bootdev $mmcbootdev:$mmcinformpart $slotfile; then;
ext4load $bootdev $mmcbootdev:$mmcinformpart $slot_addr $slotfile;
if itest.b *${slot_addr} == 0x62; then;
setenv partition_ab "b"
fi
fi
echo "boot from slot_${partition_ab}"
if test -e $bootdev $mmcbootdev:$mmcinformpart $rebootparamfile; then;
ext4load $bootdev $mmcbootdev:$mmcinformpart $rebootparam_addr $rebootparamfile;
if itest.l *${rebootparam_addr} == ${upgrade_val}; then;
setenv partition_name "ramdisk-recovery"
setenv partition_fallback ${legacy_recovery_part}
setenv bootmode "fota"
elif itest.l *${rebootparam_addr} == ${recovery_val}; then;
setenv partition_name "ramdisk-recovery"
setenv partition_fallback ${legacy_recovery_part}
setenv bootmode "recovery"
elif itest.l *${rebootparam_addr} == ${download_val}; then;
setenv partition_name "ramdisk-recovery"
setenv partition_fallback ${legacy_recovery_part}
setenv bootmode "flash"
elif itest.l *${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 partition_fallback ${legacy_recovery_part}
setenv bootmode "flash"
fi
if test "${bootmode}" = "flash"; then;
if test -n "${ipaddr}"; then;
ip_opt=\"ip=${ipaddr}::${gateway}:${netmask}\"
fi
fi
# find the selected ramdisk variant partition
part number $bootdev $mmcbootdev "${partition_name}_${partition_ab}" res
if test -n "${res}"; then;
setenv ramdiskpart ${res}
else
setenv ramdiskpart ${partition_fallback}
fi
# setting console device if noting is set
if test -z "${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}"
# DT image by model
setenv boot_prefixes \"/\"
# Find the ramdisk offset and block count
part start $bootdev $mmcrootdev $ramdiskpart ramdisk_start
part size $bootdev $mmcrootdev $ramdiskpart ramdisk_size
# Set to ramdisksize with real partition size. (Need to multiply block-size 0x200)
setexpr ramdisksize $ramdisk_size * 200
setexpr tizen_kernel_addr_r $ramdisk_addr_r + $ramdisksize
# boot from ram0 if there is sbin or it is initramfs
if test -e $bootdev $mmcrootdev:$ramdiskpart sbin/init; then;
setenv rootdev ram0
echo "Loading Ramdisk from partition ${ramdiskpart}";
$bootdev read $ramdisk_addr_r $ramdisk_start $ramdisk_size;
else
# Check for gzip (initramfs) magic
$bootdev read $ramdisk_addr_r $ramdisk_start 1;
if itest.w *$ramdisk_addr_r == 0x8b1f; then;
setenv rootdev ram0
echo "Loading initramfs from partition ${ramdiskpart}";
$bootdev read $ramdisk_addr_r $ramdisk_start $ramdisk_size;
else
if test "${bootdev}" = "mmc"; then;
setenv rootdev mmcblk${mmcrootdev}p${mmcrootpart}
fi
if test "${bootdev}" = "usb"; then;
setenv rootdev sda${mmcrootpart}
fi
setenv bootmode normal
fi
fi
# To use cmdline for using serial console. /* Normal mode */
setenv bootargs \"${tizen_bootarg} cgroup_enable=memory root=/dev/${rootdev} rw bootmode=${bootmode} partition_ab=${partition_ab} rootwait ${console} ${opts} ${ip_opt}\"
echo "Searching for kernel in"; for prefix in $boot_prefixes; do
if load $bootdev $mmcbootdev:$mmcbootpart $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 $ramdisk_addr_r:$ramdisksize $fdt_addr;
else
booti $tizen_kernel_addr_r $ramdisk_addr_r:$ramdisksize $fdt_addr;
fi
fi
done
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