linux-kernel - [PATCH V2 48/69] ST SPEAr: replace readl, writel with __raw_readl, __raw

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Date:	Fri,  1 Oct 2010 17:26:08 +0530
From:	Viresh KUMAR <viresh.kumar@...com>
To:	linux-arm-kernel@...ts.infradead.org, rtc-linux@...glegroups.com,
	a.zummo@...ertech.it, dbrownell@...rs.sourceforge.net,
	linux-usb@...r.kernel.org, linux-input@...r.kernel.org,
	dmitry.torokhov@...il.com, linux-mtd@...ts.infradead.org,
	dwmw2@...radead.org, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org
Cc:	Viresh Kumar <viresh.kumar@...com>, shiraz.hashim@...com,
	vipin.kumar@...com, deepak.sikri@...com, armando.visconti@...com,
	vipulkumar.samar@...com, rajeev-dlh.kumar@...com,
	pratyush.anand@...com, bhupesh.sharma@...com
Subject: [PATCH V2 48/69] ST SPEAr: replace readl, writel with __raw_readl, __raw_writel in uncompress.h

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@...com>
---
 arch/arm/plat-spear/include/plat/uncompress.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

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)
-- 
1.7.2.2

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