[PATCH 2/5] arm: boot: convert ATAG_REVISION to DT "/revision" entry
From: Pali Rohár <hidden>
Date: 2015-07-06 20:27:56
Also in:
linux-omap, lkml
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
When uncompressing kernel image this patch convert ATAG_REVISION structure into DT "/revision" entry. For legacy bootloaders which do not support DT booting there is no other option how to pass ATAG_REVISION into kernel. Signed-off-by: Pali Roh?r <redacted> --- arch/arm/boot/compressed/atags_to_fdt.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/compressed/atags_to_fdt.c b/arch/arm/boot/compressed/atags_to_fdt.c
index 9448aa0..e7e1cc9 100644
--- a/arch/arm/boot/compressed/atags_to_fdt.c
+++ b/arch/arm/boot/compressed/atags_to_fdt.c@@ -171,6 +171,8 @@ int atags_to_fdt(void *atag_list, void *fdt, int total_space) cpu_to_fdt32(atag->u.mem.size); } + } else if (atag->hdr.tag == ATAG_REVISION) { + setprop_cell(fdt, "/", "revision", atag->u.revision.rev); } else if (atag->hdr.tag == ATAG_INITRD2) { uint32_t initrd_start, initrd_size; initrd_start = atag->u.initrd.start;
--
1.7.9.5