** Description changed:
+ [ Impact ]
+
+ The current u-boot-rpi package does not include support for FIT images.
+ Enabling this feature has been requested by an internal team.
+
+ [ Test Plan ]
+
+ To test FIT image generation:
+
+ * Flash the Ubuntu Server for Raspberry Pi 24.04.1 image [1] to an SD card
+ * Place the following content in a file named "image.its":
+
+ /dts-v1/;
+ / {
+ description = "FIT payload";
+ #address-cells = <2>;
+ images {
+ kernel {
+ description = "kernel";
+ data = /incbin/("vmlinux.zst");
+ type = "kernel";
+ arch = "arm64";
+ os = "linux";
+ compression = "zstd";
+ load = <0x200000>;
+ entry = <0x200000>;
+ hash {
+ algo = "sha1";
+ };
+ };
+ initrd {
+ description = "initramfs";
+ data = /incbin/("initrd.cpio.zst");
+ type = "ramdisk";
+ arch = "arm64";
+ os = "linux";
+ compression = "none";
+ hash {
+ algo = "sha1";
+ };
+ };
+ };
+ configurations {
+ default = "standard";
+ standard {
+ description = "config";
+ kernel = "kernel";
+ ramdisk = "initrd";
+ hash {
+ algo = "sha1";
+ };
+ };
+ };
+ };
+
+ * Run mkimage -f image.its -T flat_dt
+ * Observe failure with current version
+ * Upgrade u-boot-rpi to version in -proposed
+ * Run mkimage -f image.its -T flat_dt
+ * Observe successful generation of image
+
+ To test no regression in boot operation:
+
+ * Flash the Ubuntu Server for Raspberry Pi 24.04.1 image [1] to an SD card
+ * Modify the boot sequence to include u-boot. In config.txt:
+ - Set kernel=uboot_rpi_4.bin (adjust as appropriate for test board)
+ - Set device_tree_address=0x03000000
+ * sudo reboot
+ * Ensure boot succeeds
+
+ [1]:
+
http://cdimage.ubuntu.com/releases/24.04.1/release/ubuntu-24.04.1-preinstalled-
+ desktop-arm64+raspi.img.xz
+
+ [ Regression Potential ]
+
+ Varied; the u-boot package hasn't been used in the classic images since
+ focal (and jammy upgrades includes a quirk to remove it from the boot
+ chain), so the impact on the server and desktop images should be nil
+ even if it failed entirely. However, the Core images still use u-boot so
+ its operation should be checked on all boards supported by Core 24
+ (specifically the Pi 3, 4, and 5 series) by following the second part of
+ the test plan above.
+
+ [ Original Description ]
+
Support for signed FIT images has been requested; the following config
items should be enabled for the rpi 3 and 4 configurations (in both
armhf and arm64):
CONFIG_FIT=y
CONFIG_FIT_SIGNATURE=y
CONFIG_FIT_VERBOSE=y
CONFIG_FIT_PRINT=y
CONFIG_TOOLS_FIT=y
CONFIG_TOOLS_FIT_SIGNATURE=y
CONFIG_TOOLS_FIT_VERBOSE=y
CONFIG_TOOLS_FIT_PRINT=y
CONFIG_ZSTD=y
Check this doesn't affect core 24 images (there will inevitably be a
size increase as a result of enabling more flags; this is probably a
good time to unseed u-boot on the pi images for oracular).
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https://bugs.launchpad.net/bugs/2054092
Title:
[SRU] Add support for FIT images to rpi config
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