From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Thu, 28 Mar 2013 16:35:22 +0000 (+0100)
Subject: ARM i.MX5: Add System Reset Controller (SRC) support for i.MX51 and i.MX53
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=bd3d924d71a45b88941b50ddaa77aadb2ae4ded7;p=linux-beck.git

ARM i.MX5: Add System Reset Controller (SRC) support for i.MX51 and i.MX53

The SRC in i.MX51 and i.MX53 is similar to the one in i.MX6q minus
the IPU2 reset line and multi core CPU reset/enable bits.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---

diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 8b6dfd1a1b2f..8805adb7c7f6 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -520,7 +520,7 @@
 			};
 
 			src: src@020d8000 {
-				compatible = "fsl,imx6q-src";
+				compatible = "fsl,imx6q-src", "fsl,imx51-src";
 				reg = <0x020d8000 0x4000>;
 				interrupts = <0 91 0x04 0 96 0x04>;
 				#reset-cells = <1>;
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 6575e4ebe26e..91571a16f986 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -149,6 +149,7 @@ config SOC_IMX5
 
 config	SOC_IMX51
 	bool
+	select HAVE_IMX_SRC
 	select PINCTRL
 	select PINCTRL_IMX51
 	select SOC_IMX5
@@ -774,6 +775,7 @@ comment "Device tree only"
 config	SOC_IMX53
 	bool "i.MX53 support"
 	select HAVE_CAN_FLEXCAN if CAN
+	select HAVE_IMX_SRC
 	select IMX_HAVE_PLATFORM_IMX2_WDT
 	select PINCTRL
 	select PINCTRL_IMX53
diff --git a/arch/arm/mach-imx/mm-imx5.c b/arch/arm/mach-imx/mm-imx5.c
index cf34994cfe28..b7c4e70e5081 100644
--- a/arch/arm/mach-imx/mm-imx5.c
+++ b/arch/arm/mach-imx/mm-imx5.c
@@ -84,6 +84,7 @@ void __init imx51_init_early(void)
 	mxc_set_cpu_type(MXC_CPU_MX51);
 	mxc_iomux_v3_init(MX51_IO_ADDRESS(MX51_IOMUXC_BASE_ADDR));
 	mxc_arch_reset_init(MX51_IO_ADDRESS(MX51_WDOG1_BASE_ADDR));
+	imx_src_init();
 }
 
 void __init imx53_init_early(void)
@@ -91,6 +92,7 @@ void __init imx53_init_early(void)
 	mxc_set_cpu_type(MXC_CPU_MX53);
 	mxc_iomux_v3_init(MX53_IO_ADDRESS(MX53_IOMUXC_BASE_ADDR));
 	mxc_arch_reset_init(MX53_IO_ADDRESS(MX53_WDOG1_BASE_ADDR));
+	imx_src_init();
 }
 
 void __init mx51_init_irq(void)
diff --git a/arch/arm/mach-imx/src.c b/arch/arm/mach-imx/src.c
index e15f1555c59b..cef5ca7c464d 100644
--- a/arch/arm/mach-imx/src.c
+++ b/arch/arm/mach-imx/src.c
@@ -61,7 +61,9 @@ void __init imx_src_init(void)
 	struct device_node *np;
 	u32 val;
 
-	np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-src");
+	np = of_find_compatible_node(NULL, NULL, "fsl,imx51-src");
+	if (!np)
+		return;
 	src_base = of_iomap(np, 0);
 	WARN_ON(!src_base);