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openwrt-xburst/target/linux/ar71xx/patches-3.2/019-MIPS-ath79-Store-the-SoC-revision-in-a-global-variab.patch
juhosg e0b80e41eb ar71xx: add initial support for 3.2
Tested on the following boards:
  ALFA AP96
  TL-MR3220 v1
  TL-WR1043ND v1
  TL-WR2543ND v1
  TL-WR703N v1
  TL-WR741ND v1
  TL-WR741ND v4
  WNDR3700 v1
  WZR-HP-G300NH

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29868 3c298f89-4303-0410-b956-a3cf2f4a3e73
2012-01-22 22:38:19 +00:00

52 lines
1.6 KiB
Diff

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)
{