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https://github.com/brain-hackers/u-boot-brain
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18cfa612a9
This patch adds support for an optional optimization to compatible string matching where the compatible string property from the root node of the kernel FDT can be copied into the configuration node of the FIT image. This is most useful when using compressed FDTs or when using FDT overlays, where the traditional extraction of the compatible string from the kernel FDT itself is not easily possible. Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
74 lines
1.4 KiB
Plaintext
74 lines
1.4 KiB
Plaintext
/*
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* U-Boot uImage source file with a kernel and multiple compressed FDT blobs.
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* Since the FDTs are compressed, configurations must provide a compatible
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* string to match directly.
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*/
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/dts-v1/;
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/ {
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description = "Image with single Linux kernel and compressed FDT blobs";
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#address-cells = <1>;
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images {
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kernel {
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description = "Vanilla Linux kernel";
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data = /incbin/("./vmlinux.bin.gz");
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type = "kernel";
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arch = "ppc";
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os = "linux";
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compression = "gzip";
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load = <00000000>;
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entry = <00000000>;
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hash-1 {
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algo = "crc32";
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};
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hash-2 {
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algo = "sha1";
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};
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};
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fdt@1 {
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description = "Flattened Device Tree blob 1";
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data = /incbin/("./myboard-var1.dtb");
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type = "flat_dt";
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arch = "ppc";
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compression = "gzip";
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hash-1 {
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algo = "crc32";
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};
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hash-2 {
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algo = "sha1";
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};
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};
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fdt@2 {
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description = "Flattened Device Tree blob 2";
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data = /incbin/("./myboard-var2.dtb");
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type = "flat_dt";
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arch = "ppc";
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compression = "lzma";
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hash-1 {
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algo = "crc32";
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};
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hash-2 {
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algo = "sha1";
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};
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};
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};
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configurations {
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default = "conf@1";
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conf@1 {
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description = "Boot Linux kernel with FDT blob 1";
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kernel = "kernel";
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fdt = "fdt@1";
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compatible = "myvendor,myboard-variant1";
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};
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conf@2 {
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description = "Boot Linux kernel with FDT blob 2";
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kernel = "kernel";
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fdt = "fdt@2";
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compatible = "myvendor,myboard-variant2";
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};
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};
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};
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