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arch: hexagon: include: asm: add generic macro 'mmiowb' in "io.h"

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Need dumy mmiowb(), or can not pass compiling, the related error with
allmodconfig:

    CC [M]  drivers/mmc/host/sdhci.o
  drivers/mmc/host/sdhci.c: In function 'sdhci_request':
  drivers/mmc/host/sdhci.c:1409:2: error: implicit declaration of function 'mmiowb' [-Werror=implicit-function-declaration]

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
This commit is contained in:
Chen Gang 2013-11-26 12:07:40 +08:00 committed by Richard Kuo
parent e6d1904217
commit 5e78a264f8
1 changed files with 2 additions and 0 deletions
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2
arch/hexagon/include/asm/io.h
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@ -189,6 +189,8 @@ static inline void writel(u32 data, volatile void __iomem *addr)
#define writew_relaxed __raw_writew
#define writel_relaxed __raw_writel
#define mmiowb()
/*
* Need an mtype somewhere in here, for cache type deals?
* This is probably too long for an inline.