ARM: mx25: Retrieve IIM base from dt
We should use dt to retrieve the IIM base address. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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1 changed files with 10 additions and 1 deletions
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@ -11,6 +11,8 @@
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*/
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#include <linux/module.h>
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#include <linux/io.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include "iim.h"
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#include "hardware.h"
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@ -20,8 +22,15 @@ static int mx25_cpu_rev = -1;
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static int mx25_read_cpu_rev(void)
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{
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u32 rev;
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void __iomem *iim_base;
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struct device_node *np;
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np = of_find_compatible_node(NULL, NULL, "fsl,imx25-iim");
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iim_base = of_iomap(np, 0);
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BUG_ON(!iim_base);
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rev = readl(iim_base + MXC_IIMSREV);
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iounmap(iim_base);
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rev = __raw_readl(MX25_IO_ADDRESS(MX25_IIM_BASE_ADDR + MXC_IIMSREV));
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switch (rev) {
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case 0x00:
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return IMX_CHIP_REVISION_1_0;
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