doc: Bring in the FIT examples
Convert these to rST format and add them to the index.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/doc/usage/fit/kernel.rst b/doc/usage/fit/kernel.rst
new file mode 100644
index 0000000..012a81e
--- /dev/null
+++ b/doc/usage/fit/kernel.rst
@@ -0,0 +1,93 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Single kernel
+=============
+
+::
+
+ /dts-v1/;
+
+ / {
+ description = "Simple image with single Linux kernel";
+ #address-cells = <1>;
+
+ images {
+ kernel {
+ description = "Vanilla Linux kernel";
+ data = /incbin/("./vmlinux.bin.gz");
+ type = "kernel";
+ arch = "ppc";
+ os = "linux";
+ compression = "gzip";
+ load = <00000000>;
+ entry = <00000000>;
+ hash-1 {
+ algo = "crc32";
+ };
+ hash-2 {
+ algo = "sha1";
+ };
+ };
+ };
+
+ configurations {
+ default = "config-1";
+ config-1 {
+ description = "Boot Linux kernel";
+ kernel = "kernel";
+ };
+ };
+ };
+
+
+For x86 a setup node is also required: see x86-fit-boot::
+
+ /dts-v1/;
+
+ / {
+ description = "Simple image with single Linux kernel on x86";
+ #address-cells = <1>;
+
+ images {
+ kernel {
+ description = "Vanilla Linux kernel";
+ data = /incbin/("./image.bin.lzo");
+ type = "kernel";
+ arch = "x86";
+ os = "linux";
+ compression = "lzo";
+ load = <0x01000000>;
+ entry = <0x00000000>;
+ hash-2 {
+ algo = "sha1";
+ };
+ };
+
+ setup {
+ description = "Linux setup.bin";
+ data = /incbin/("./setup.bin");
+ type = "x86_setup";
+ arch = "x86";
+ os = "linux";
+ compression = "none";
+ load = <0x00090000>;
+ entry = <0x00090000>;
+ hash-2 {
+ algo = "sha1";
+ };
+ };
+ };
+
+ configurations {
+ default = "config-1";
+ config-1 {
+ description = "Boot Linux kernel";
+ kernel = "kernel";
+ setup = "setup";
+ };
+ };
+ };
+
+Note: the above assumes a 32-bit kernel. To directly boot a 64-bit kernel,
+change both arch values to "x86_64". U-Boot will then change to 64-bit mode
+before booting the kernel (see boot_linux_kernel()).