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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2020-12-04 12:39:10 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2020-12-21 14:19:21 +0300 |
| commit | 551b39efc6ffdc7a881122fbac0caa2a27a464d8 (patch) | |
| tree | bbfd80fbd3775001c60d2a5daee0ef1f739aba24 /arch/arm/boot | |
| parent | 1ecec38547d415054fdb63a231234f44396b6d06 (diff) | |
| download | linux-551b39efc6ffdc7a881122fbac0caa2a27a464d8.tar.xz | |
ARM: 9037/1: uncompress: Add OF_DT_MAGIC macro
The DTB magic marker is stored as a 32-bit big-endian value, and thus
depends on the CPU's endianness. Add a macro to define this value in
native endianness, to reduce #ifdef clutter and (future) duplication.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/boot')
| -rw-r--r-- | arch/arm/boot/compressed/head.S | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index 4fb699769e6a..8d546cb10921 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -11,6 +11,12 @@ #include "efi-header.S" +#ifdef __ARMEB__ +#define OF_DT_MAGIC 0xd00dfeed +#else +#define OF_DT_MAGIC 0xedfe0dd0 +#endif + AR_CLASS( .arch armv7-a ) M_CLASS( .arch armv7-m ) @@ -335,11 +341,7 @@ restart: adr r0, LC1 */ ldr lr, [r6, #0] -#ifndef __ARMEB__ - ldr r1, =0xedfe0dd0 @ sig is 0xd00dfeed big endian -#else - ldr r1, =0xd00dfeed -#endif + ldr r1, =OF_DT_MAGIC cmp lr, r1 bne dtb_check_done @ not found |