From 551b39efc6ffdc7a881122fbac0caa2a27a464d8 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 4 Dec 2020 10:39:10 +0100 Subject: 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 Reviewed-by: Ard Biesheuvel Reviewed-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/boot/compressed/head.S | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'arch') 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 -- cgit v1.2.3