summaryrefslogtreecommitdiff
path: root/doc/usage/fit/kernel_fdts_compressed.rst
diff options
context:
space:
mode:
Diffstat (limited to 'doc/usage/fit/kernel_fdts_compressed.rst')
-rw-r--r--doc/usage/fit/kernel_fdts_compressed.rst77
1 files changed, 77 insertions, 0 deletions
diff --git a/doc/usage/fit/kernel_fdts_compressed.rst b/doc/usage/fit/kernel_fdts_compressed.rst
new file mode 100644
index 00000000000..0b169c7c27c
--- /dev/null
+++ b/doc/usage/fit/kernel_fdts_compressed.rst
@@ -0,0 +1,77 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Kernel and multiple compressed FDT blobs
+========================================
+
+Since the FDTs are compressed, configurations must provide a compatible
+string to match directly.
+
+::
+
+ /dts-v1/;
+
+ / {
+ description = "Image with single Linux kernel and compressed FDT blobs";
+ #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";
+ };
+ };
+ fdt@1 {
+ description = "Flattened Device Tree blob 1";
+ data = /incbin/("./myboard-var1.dtb");
+ type = "flat_dt";
+ arch = "ppc";
+ compression = "gzip";
+ hash-1 {
+ algo = "crc32";
+ };
+ hash-2 {
+ algo = "sha1";
+ };
+ };
+ fdt@2 {
+ description = "Flattened Device Tree blob 2";
+ data = /incbin/("./myboard-var2.dtb");
+ type = "flat_dt";
+ arch = "ppc";
+ compression = "lzma";
+ hash-1 {
+ algo = "crc32";
+ };
+ hash-2 {
+ algo = "sha1";
+ };
+ };
+ };
+
+ configurations {
+ default = "conf@1";
+ conf@1 {
+ description = "Boot Linux kernel with FDT blob 1";
+ kernel = "kernel";
+ fdt = "fdt@1";
+ compatible = "myvendor,myboard-variant1";
+ };
+ conf@2 {
+ description = "Boot Linux kernel with FDT blob 2";
+ kernel = "kernel";
+ fdt = "fdt@2";
+ compatible = "myvendor,myboard-variant2";
+ };
+ };
+ };