From d3cdd75072bc5df5b18dcafb45cbe9a3a62b840b Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Fri, 18 Nov 2011 00:17:46 +0000
Subject: [PATCH 19/27] MIPS: ath79: Store the SoC revision in a global variable

Knowing the exact revision of the SoC is required to make runtime decisions
in various code paths.  We have determined the SoC revision already, so we
only need to store that in a global variable.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3027/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/ath79/common.c                 |    1 +
 arch/mips/ath79/setup.c                  |    2 ++
 arch/mips/include/asm/mach-ath79/ath79.h |    1 +
 3 files changed, 4 insertions(+), 0 deletions(-)

--- a/arch/mips/ath79/common.c
+++ b/arch/mips/ath79/common.c
@@ -30,6 +30,7 @@ u32 ath79_ddr_freq;
 EXPORT_SYMBOL_GPL(ath79_ddr_freq);
 
 enum ath79_soc_type ath79_soc;
+unsigned int ath79_soc_rev;
 
 void __iomem *ath79_pll_base;
 void __iomem *ath79_reset_base;
--- a/arch/mips/ath79/setup.c
+++ b/arch/mips/ath79/setup.c
@@ -149,6 +149,8 @@ static void __init ath79_detect_sys_type
 		panic("ath79: unknown SoC, id:0x%08x\n", id);
 	}
 
+	ath79_soc_rev = rev;
+
 	sprintf(ath79_sys_type, "Atheros AR%s rev %u", chip, rev);
 	pr_info("SoC: %s\n", ath79_sys_type);
 }
--- a/arch/mips/include/asm/mach-ath79/ath79.h
+++ b/arch/mips/include/asm/mach-ath79/ath79.h
@@ -32,6 +32,7 @@ enum ath79_soc_type {
 };
 
 extern enum ath79_soc_type ath79_soc;
+extern unsigned int ath79_soc_rev;
 
 static inline int soc_is_ar71xx(void)
 {
