--- /dev/null
+# U-boot script for tizen RPI4
+
+if test -e $bootdev $mmcbootdev:$mmcinformpart $rebootparamfile; then;
+ ext4load $bootdev $mmcbootdev:$mmcinformpart $rebootparam_addr $rebootparamfile;
+ if itest.l *${rebootparam_addr} == ${upgrade_val}; then;
+ setenv ramdiskpart 8
+ setenv ramdisksize c00000
+ setenv bootmode fota
+ elif itest.l *${rebootparam_addr} == ${recovery_val}; then;
+ setenv ramdiskpart 8
+ setenv ramdisksize c00000
+ setenv bootmode recovery
+ elif itest.l *${rebootparam_addr} == ${download_val}; then;
+ setenv ramdiskpart 8
+ setenv ramdisksize c00000
+ setenv bootmode flash
+ elif itest.l *${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 ramdiskpart 8
+ setenv ramdisksize c00000
+ setenv bootmode flash
+fi
+
+if test "${bootmode}" = "flash"; then;
+ if test -n "${ipaddr}"; then;
+ ip_opt=\"ip=${ipaddr}::${gateway}:${netmask}\"
+ fi
+fi
+
+# boot from ram0 if there is sbin
+if test -e $bootdev $mmcrootdev:$ramdiskpart sbin/init; then;
+ setenv rootdev ram0
+else
+ setenv rootdev mmcblk${mmcrootdev}p${mmcrootpart}
+ setenv bootmode normal
+fi
+
+# setting console device if noting is set
+if test -z "${console}"; then;
+ setenv console "console=ttyS0,115200n8 earlycon=uart8250,mmio32,0xfe215040"
+fi
+echo "console: ${console}"
+
+# Kernel image
+kernel=Image
+# DT image by model
+setenv fdtfile \"bcm2711-rpi-4-b.dtb\"
+setenv boot_prefixes \"/\"
+
+# To use cmdline for using serial console. /* Normal mode */
+setenv bootargs \"${tizen_bootarg} root=/dev/${rootdev} rw bootmode=${bootmode} rootwait ${console} ${opts} ${ip_opt}\"
+
+# Find the ramdisk offset and block count
+part start $bootdev $mmcrootdev $ramdiskpart ramdisk_start
+part size $bootdev $mmcrootdev $ramdiskpart ramdisk_size
+
+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";
+ load $bootdev $mmcbootdev:$mmcbootpart $fdt_addr_r $fdtfile;
+ if test -e mmc $mmcrootdev:$ramdiskpart sbin/init; then;
+ echo "Loading Ramdisk from partition"${ramdiskpart};
+ mmc read $ramdisk_addr_r $ramdisk_start $ramdisk_size;
+ fi
+ booti $tizen_kernel_addr_r $ramdisk_addr_r:$ramdisksize $fdt_addr_r;
+fi
+done