From: Paul Burton <paul.burton@imgtec.com>
Date: Mon, 24 Mar 2014 10:19:35 +0000 (+0000)
Subject: MIPS: CPC: Use __raw_ memory access functions
X-Git-Tag: firefly_0821_release~176^2~4179^2~1
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9a1724c7506bfa7d3d9dcab13f83e9e6446929f9;p=firefly-linux-kernel-4.4.55.git

MIPS: CPC: Use __raw_ memory access functions

The CPC registers use native endianness, so using plain readl & writel
will produce incorrect results on big endian systems.

Reported-by: Jeffrey Deans <jeffrey.deans@imgtec.com>
Reported-by: Keng Koh <keng.koh@imgtec.com>
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6657/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/include/asm/mips-cpc.h b/arch/mips/include/asm/mips-cpc.h
index fb78935010a3..988507e46d42 100644
--- a/arch/mips/include/asm/mips-cpc.h
+++ b/arch/mips/include/asm/mips-cpc.h
@@ -75,13 +75,13 @@ static inline bool mips_cpc_present(void)
 #define BUILD_CPC_R_(name, off) \
 static inline u32 read_cpc_##name(void)				\
 {								\
-	return readl(mips_cpc_base + (off));			\
+	return __raw_readl(mips_cpc_base + (off));		\
 }
 
 #define BUILD_CPC__W(name, off) \
 static inline void write_cpc_##name(u32 value)			\
 {								\
-	writel(value, mips_cpc_base + (off));			\
+	__raw_writel(value, mips_cpc_base + (off));		\
 }
 
 #define BUILD_CPC_RW(name, off)					\