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Commit 12a76301 authored by Fabio Estevam's avatar Fabio Estevam Committed by Greg Kroah-Hartman
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ARM: imx35: Retrieve the IIM base address from devicetree 



[ Upstream commit f68ea682d1da77e0133a7726640c22836a900a67 ]

Now that imx35 has been converted to a devicetree-only platform,
retrieve the IIM base address from devicetree.

Signed-off-by: default avatarFabio Estevam <festevam@gmail.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
Stable-dep-of: 87b30c4b0efb ("ARM: imx: add missing of_node_put()")
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 3b76bc15

arch/arm/mach-imx/cpu-imx35.c

+8 −1
Original line number Diff line number Diff line
@@ -5,6 +5,7 @@ 
 * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>

 */

#include <linux/module.h>

#include <linux/of_address.h>

#include <linux/io.h>



#include "hardware.h"
@@ -14,9 +15,15 @@ static int mx35_cpu_rev = -1; 


static int mx35_read_cpu_rev(void)

{

	void __iomem *iim_base;

	struct device_node *np;

	u32 rev;



	rev = imx_readl(MX35_IO_ADDRESS(MX35_IIM_BASE_ADDR + MXC_IIMSREV));

	np = of_find_compatible_node(NULL, NULL, "fsl,imx35-iim");

	iim_base = of_iomap(np, 0);

	BUG_ON(!iim_base);



	rev = imx_readl(iim_base + MXC_IIMSREV);

	switch (rev) {

	case 0x00:

		return IMX_CHIP_REVISION_1_0;