linux-kernel - [PATCH] Staging: Westbridge: added ioremap_nocache instead of phys_to

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Date:	Tue, 01 Feb 2011 22:45:04 -0800
From:	Sutharsan <sutharsan.tech@...il.com>
To:	greg@...ah.com
Cc:	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-usb@...r.kernel.org, david.cross@...ress.com,
	srmt@...ress.com
Subject: [PATCH] Staging: Westbridge: added ioremap_nocache instead of
 phys_to_virt

From: Sutharsan Ramamoorthy <srmt@...ress.com>

This patch removes phys_to_virt() and adds ioremap_nocache() for
memory mapping the GPMC registers.

Signed-off-by: Sutharsan Ramamoorthy <srmt@...ress.com>

---

diff -uprN -X linux-2.6.37_vanilla/Documentation/dontdiff linux-2.6.37_vanilla/drivers/staging/westbridge/astoria/arch/arm/mach-omap2/cyashalomap_kernel.c linux-2.6.37-ptov/drivers/staging/westbridge/astoria/arch/arm/mach-omap2/cyashalomap_kernel.c
--- linux-2.6.37_vanilla/drivers/staging/westbridge/astoria/arch/arm/mach-omap2/cyashalomap_kernel.c	2010-11-29 20:42:04.000000000 -0800
+++ linux-2.6.37-ptov/drivers/staging/westbridge/astoria/arch/arm/mach-omap2/cyashalomap_kernel.c	2011-02-01 16:00:31.214861085 -0800
@@ -347,11 +347,8 @@ static int cy_as_hal_gpmc_init(void)
 	u32 tmp32;
 	int err;
 	struct gpmc_timings	timings;
-	/*
-	 * get GPMC i/o registers base(already been i/o mapped
-	 * in kernel, no need for separate i/o remap)
-	 */
-	gpmc_base = phys_to_virt(OMAP34XX_GPMC_BASE);
+
+	gpmc_base = (u32)ioremap_nocache(OMAP34XX_GPMC_BASE, BLKSZ_4K);
 	DBGPRN(KERN_INFO "kernel has gpmc_base=%x , val@ the base=%x",
 		gpmc_base, __raw_readl(gpmc_base)
 	);

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