|
@@ -0,0 +1,92 @@
|
|
|
+# This is an example file to generate boot.scr - a boot script for U-Boot
|
|
|
+# Generate boot.scr:
|
|
|
+# ./tools/mkimage -c none -A arm -T script -d autoboot.cmd boot.scr
|
|
|
+#
|
|
|
+# It requires a list of environment variables to be defined before load:
|
|
|
+# platform dependent: boardname, fdtfile, console
|
|
|
+# system dependent: mmcbootdev, mmcbootpart, mmcrootdev, mmcrootpart, rootfstype
|
|
|
+#
|
|
|
+setenv fdtaddr "40800000"
|
|
|
+setenv initrdname "uInitrd"
|
|
|
+setenv initrdaddr "42000000"
|
|
|
+setenv loaddtb "load mmc ${mmcbootdev}:${mmcbootpart} ${fdtaddr} ${fdtfile}"
|
|
|
+setenv loadinitrd "load mmc ${mmcbootdev}:${mmcbootpart} ${initrdaddr} ${initrdname}"
|
|
|
+setenv loadkernel "load mmc ${mmcbootdev}:${mmcbootpart} '${kerneladdr}' '${kernelname}'"
|
|
|
+setenv kernel_args "setenv bootargs ${console} root=/dev/mmcblk${mmcrootdev}p${mmcrootpart} rootfstype=${rootfstype} rootwait ${opts}"
|
|
|
+
|
|
|
+#### Routine: check_dtb - check that target.dtb exists on boot partition
|
|
|
+setenv check_dtb "
|
|
|
+if test -e mmc '${mmcbootdev}':'${mmcbootpart}' '${fdtfile}'; then
|
|
|
+ run loaddtb;
|
|
|
+ setenv fdt_addr ${fdtaddr};
|
|
|
+else
|
|
|
+ echo Warning! Booting without DTB: '${fdtfile}'!;
|
|
|
+ setenv fdt_addr;
|
|
|
+fi;"
|
|
|
+
|
|
|
+#### Routine: check_ramdisk - check that uInitrd exists on boot partition
|
|
|
+setenv check_ramdisk "
|
|
|
+if test -e mmc '${mmcbootdev}':'${mmcbootpart}' '${initrdname}'; then
|
|
|
+ echo "Found ramdisk image.";
|
|
|
+ run loadinitrd;
|
|
|
+ setenv initrd_addr ${initrdaddr};
|
|
|
+else
|
|
|
+ echo Warning! Booting without RAMDISK: '${initrdname}'!;
|
|
|
+ setenv initrd_addr -;
|
|
|
+fi;"
|
|
|
+
|
|
|
+#### Routine: boot_fit - check that env $boardname is set and boot proper config of ITB image
|
|
|
+setenv setboot_fit "
|
|
|
+if test -e '${boardname}'; then
|
|
|
+ setenv fdt_addr ;
|
|
|
+ setenv initrd_addr ;
|
|
|
+ setenv kerneladdr 0x42000000;
|
|
|
+ setenv kernelname Image.itb;
|
|
|
+ setenv itbcfg \#'${boardname}';
|
|
|
+ setenv imgbootcmd bootm;
|
|
|
+else
|
|
|
+ echo Warning! Variable: \$boardname is undefined!;
|
|
|
+fi"
|
|
|
+
|
|
|
+#### Routine: setboot_uimg - prepare env to boot uImage
|
|
|
+setenv setboot_uimg "
|
|
|
+ setenv kerneladdr 0x40007FC0;
|
|
|
+ setenv kernelname uImage;
|
|
|
+ setenv itbcfg ;
|
|
|
+ setenv imgbootcmd bootm;
|
|
|
+ run check_dtb;
|
|
|
+ run check_ramdisk;"
|
|
|
+
|
|
|
+#### Routine: setboot_zimg - prepare env to boot zImage
|
|
|
+setenv setboot_zimg "
|
|
|
+ setenv kerneladdr 0x40007FC0;
|
|
|
+ setenv kernelname zImage;
|
|
|
+ setenv itbcfg ;
|
|
|
+ setenv imgbootcmd bootz;
|
|
|
+ run check_dtb;
|
|
|
+ run check_ramdisk;"
|
|
|
+
|
|
|
+#### Routine: boot_img - boot the kernel after env setup
|
|
|
+setenv boot_img "
|
|
|
+ run loadkernel;
|
|
|
+ run kernel_args;
|
|
|
+ '${imgbootcmd}' '${kerneladdr}${itbcfg}' '${initrd_addr}' '${fdt_addr}';"
|
|
|
+
|
|
|
+#### Routine: autoboot - choose proper boot path
|
|
|
+setenv autoboot "
|
|
|
+if test -e mmc 0:${mmcbootpart} Image.itb; then
|
|
|
+ echo Found kernel image: Image.itb;
|
|
|
+ run setboot_fit;
|
|
|
+ run boot_img;
|
|
|
+elif test -e mmc 0:${mmcbootpart} zImage; then
|
|
|
+ echo Found kernel image: zImage;
|
|
|
+ run setboot_zimg;
|
|
|
+ run boot_img;
|
|
|
+elif test -e mmc 0:${mmcbootpart} uImage; then
|
|
|
+ echo Found kernel image: uImage;
|
|
|
+ run setboot_uimg;
|
|
|
+ run boot_img;
|
|
|
+fi;"
|
|
|
+
|
|
|
+#### Execute the defined autoboot macro
|
|
|
+run autoboot
|