Patchwork [V2,48/69] ST SPEAr: replace readl, writel with __raw_readl, __raw_writel in uncompress.h

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Submitter Viresh KUMAR
Date Oct. 1, 2010, 11:56 a.m.
Message ID <10581ee8e7ad68eabb4421cee448b5f7df983adb.1285933332.git.viresh.kumar@st.com>
Download mbox | patch
Permalink /patch/66387/
State New
Headers show

Comments

Viresh KUMAR - Oct. 1, 2010, 11:56 a.m.
readl also calls outer cache maintainance operations which are not available
during Linux uncompression. This patch replaces readl, writel with __raw_readl
and __raw_writel.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
---
 arch/arm/plat-spear/include/plat/uncompress.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

Patch

diff --git a/arch/arm/plat-spear/include/plat/uncompress.h b/arch/arm/plat-spear/include/plat/uncompress.h
index 99ba678..963aa5b 100644
--- a/arch/arm/plat-spear/include/plat/uncompress.h
+++ b/arch/arm/plat-spear/include/plat/uncompress.h
@@ -24,10 +24,10 @@  static inline void putc(int c)
 {
 	void __iomem *base = (void __iomem *)SPEAR_DBG_UART_BASE;
 
-	while (readl(base + UART01x_FR) & UART01x_FR_TXFF)
+	while (__raw_readl(base + UART01x_FR) & UART01x_FR_TXFF)
 		barrier();
 
-	writel(c, base + UART01x_DR);
+	__raw_writel(c, base + UART01x_DR);
 }
 
 static inline void flush(void)