Merge tag 'imx-soc-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc

Merge "ARM: imx: SoC changes for 3.17" from Shawn Guo:

The i.MX SoC changes for 3.17:
 - Add devicetree support for i.MX1 and i.MX21 clock driver
 - Use CLOCKSOURCE_OF_DECLARE() to initialize timer for DT targets
 - Use of_clk_init() to initialize i.MX25 and i.MX27 clock driver in
   device tree boot
 - Remove i.MX1 camera support
 - Remove i.MX27 IP Camera and Lite-Kit board support
 - Add suspend and cpuidle support for i.mx6sx
 - Clean up unused clk_register_clkdev() lookups
 - Update imx-weim bus driver to support populating devices on a simple
   bus
 - Switch i.MX27 and i.MX6QDL clock driver to use macro for clock IDs
 - Make i.MX51 a DT only platform and clean up the non-DT support code
 - Support disabling supervisor protect via DT
 - Random defconfig updates

* tag 'imx-soc-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (69 commits)
  ARM: imx: clk-vf610: fix FlexCAN clock gating
  ARM: i.MX: Use CLOCKSOURCE_OF_DECLARE() for DT targets
  ARM: i.MX53: globally disable supervisor protect
  ARM: i.MX: allow disabling supervisor protect via DT
  ARM: i.MX27 clk: Add 26 MHz oscillator circuit clock gate
  ARM: i.MX27 clk: Remove unused definitions
  ARM: i.MX27 clk: Introduce DT include for clock provider
  ARM: i.MX: Remove Freescale Logic Product Development i.MX27 Lite-Kit board support
  ARM: i.MX: Remove excess symbols ARCH_MX1, ARCH_MX25 and MACH_MX27
  ARM: i.MX: Remove i.MX1 camera support
  ARM: imx: use PTR_ERR_OR_ZERO
  bus: imx-weim: populate devices on a simple bus
  ARM: imx: build cpu_is_imx6sl function conditionally
  ARM: imx: imx6sx uses imx6q cpuidle code
  ARM: imx: drop PL310 errata 588369 and 727915
  ARM: imx_v6_v7_defconfig: add FSL_EDMA and PRINTK_TIME
  ARM: imx: clk-imx6sx: register SSI/SSI_IPG as shared gate clocks
  ARM: imx_v6_v7_defconfig: Enable flexcan driver for can support
  ARM: imx_v6_v7_defconfig: Enable STMPE gpio support
  ARM: imx: mark .dt_compat as const
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 21 insertions, 4 deletions

diff --git a/arch/arm/mach-imx/cpu-imx5.c b/arch/arm/mach-imx/cpu-imx5.c
index c1c99a7..3403bac 100644
--- a/arch/arm/mach-imx/cpu-imx5.c
+++ b/arch/arm/mach-imx/cpu-imx5.c
@@ -16,6 +16,8 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
 
 #include "hardware.h"
 #include "common.h"
@@ -24,10 +26,26 @@ static int mx5_cpu_rev = -1;
 
 #define IIM_SREV 0x24
 
+static u32 imx5_read_srev_reg(const char *compat)
+{
+	void __iomem *iim_base;
+	struct device_node *np;
+	u32 srev;
+
+	np = of_find_compatible_node(NULL, NULL, compat);
+	iim_base = of_iomap(np, 0);
+	WARN_ON(!iim_base);
+
+	srev = readl(iim_base + IIM_SREV) & 0xff;
+
+	iounmap(iim_base);
+
+	return srev;
+}
+
 static int get_mx51_srev(void)
 {
-	void __iomem *iim_base = MX51_IO_ADDRESS(MX51_IIM_BASE_ADDR);
-	u32 rev = readl(iim_base + IIM_SREV) & 0xff;
+	u32 rev = imx5_read_srev_reg("fsl,imx51-iim");
 
 	switch (rev) {
 	case 0x0:
@@ -77,8 +95,7 @@ int __init mx51_neon_fixup(void)
 
 static int get_mx53_srev(void)
 {
-	void __iomem *iim_base = MX51_IO_ADDRESS(MX53_IIM_BASE_ADDR);
-	u32 rev = readl(iim_base + IIM_SREV) & 0xff;
+	u32 rev = imx5_read_srev_reg("fsl,imx53-iim");
 
 	switch (rev) {
 	case 0x0: