This patch stores existing ATAG structure into DT /atags field
and so previous patch exports it for userspace via /proc/atags.
Signed-off-by: Pali Rohár <pali.rohar@xxxxxxxxx>
---
arch/arm/boot/compressed/atags_to_fdt.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/compressed/atags_to_fdt.c b/arch/arm/boot/compressed/atags_to_fdt.c
index b23748e..4a4a70c 100644
--- a/arch/arm/boot/compressed/atags_to_fdt.c
+++ b/arch/arm/boot/compressed/atags_to_fdt.c
@@ -145,7 +145,7 @@ int atags_to_fdt(void *atag_list, void *fdt, int total_space)
* address and size for each bank */
uint32_t mem_reg_property[2 * 2 * NR_BANKS];
int memcount = 0;
- int ret, memsize;
+ int ret, memsize, atag_size;
/* make sure we've got an aligned pointer */
if ((u32)atag_list & 0x3)
@@ -219,6 +219,10 @@ int atags_to_fdt(void *atag_list, void *fdt, int total_space)
}
}
+ /* include the terminating ATAG_NONE */
+ atag_size = (char *)atag - (char *)atag_list + sizeof(struct tag_header);
+ setprop(fdt, "/", "atags", atag_list, atag_size);
+
if (memcount) {
setprop(fdt, "/memory", "reg", mem_reg_property,
4 * memcount * memsize);
--
1.7.9.5
--
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