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Commit 8b88f7ef authored by Fabio Estevam's avatar Fabio Estevam Committed by Shawn Guo
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ARM: mx25: Retrieve IIM base from dt 



We should use dt to retrieve the IIM base address.

Signed-off-by: default avatarFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: default avatarShawn Guo <shawn.guo@linaro.org>
parent d8a3beea

arch/arm/mach-imx/cpu-imx25.c

+10 −1
Original line number Diff line number Diff line
@@ -11,6 +11,8 @@ 
 */

#include <linux/module.h>

#include <linux/io.h>

#include <linux/of.h>

#include <linux/of_address.h>



#include "iim.h"

#include "hardware.h"
@@ -20,8 +22,15 @@ static int mx25_cpu_rev = -1; 
static int mx25_read_cpu_rev(void)

{

	u32 rev;

	void __iomem *iim_base;

	struct device_node *np;



	np = of_find_compatible_node(NULL, NULL, "fsl,imx25-iim");

	iim_base = of_iomap(np, 0);

	BUG_ON(!iim_base);

	rev = readl(iim_base + MXC_IIMSREV);

	iounmap(iim_base);



	rev = __raw_readl(MX25_IO_ADDRESS(MX25_IIM_BASE_ADDR + MXC_IIMSREV));

	switch (rev) {

	case 0x00:

		return IMX_CHIP_REVISION_1_0;