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 <[email protected]>
---
 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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to