Merge tag 'keystone-soc-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into next/soc2

Merge "Keystone SOC updates part2 for 3.16" from Santosh Shilimkar:

- Removal of now un-necessary reset machine code
- dts updates for keystone reset driver

* tag 'keystone-soc-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
  ARM: configs: keystone: enable reset driver support
  ARM: dts: keystone: update reset node to work with reset driver
  ARM: keystone: remove redundant reset stuff

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

3 files changed, 16 insertions, 35 deletions

diff --git a/arch/arm/boot/dts/keystone.dtsi b/arch/arm/boot/dts/keystone.dtsi
index 90823eb..a8052fd 100644
--- a/arch/arm/boot/dts/keystone.dtsi
+++ b/arch/arm/boot/dts/keystone.dtsi
@@ -67,9 +67,21 @@
 		interrupt-parent = <&gic>;
 		ranges = <0x0 0x0 0x0 0xc0000000>;
 
+		pllctrl: pll-controller@02310000 {
+			compatible = "ti,keystone-pllctrl", "syscon";
+			reg = <0x02310000 0x200>;
+		};
+
+		devctrl: device-state-control@02620000 {
+			compatible = "ti,keystone-devctrl", "syscon";
+			reg = <0x02620000 0x1000>;
+		};
+
 		rstctrl: reset-controller {
 			compatible = "ti,keystone-reset";
-			reg = <0x023100e8 4>;	/* pll reset control reg */
+			ti,syscon-pll = <&pllctrl 0xe4>;
+			ti,syscon-dev = <&devctrl 0x328>;
+			ti,wdt-list = <0>;
 		};
 
 		/include/ "keystone-clocks.dtsi"
diff --git a/arch/arm/configs/keystone_defconfig b/arch/arm/configs/keystone_defconfig
index 07b4327..dc0da3f 100644
--- a/arch/arm/configs/keystone_defconfig
+++ b/arch/arm/configs/keystone_defconfig
@@ -132,6 +132,9 @@ CONFIG_SPI=y
 CONFIG_SPI_DAVINCI=y
 CONFIG_SPI_SPIDEV=y
 # CONFIG_HWMON is not set
+CONFIG_POWER_SUPPLY=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_KEYSTONE=y
 CONFIG_WATCHDOG=y
 CONFIG_WATCHDOG_CORE=y
 CONFIG_DAVINCI_WATCHDOG=y
diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c
index 59b8383..1f9ae89 100644
--- a/arch/arm/mach-keystone/keystone.c
+++ b/arch/arm/mach-keystone/keystone.c
@@ -26,11 +26,6 @@
 
 #include "keystone.h"
 
-#define PLL_RESET_WRITE_KEY_MASK		0xffff0000
-#define PLL_RESET_WRITE_KEY			0x5a69
-#define PLL_RESET				BIT(16)
-
-static void __iomem *keystone_rstctrl;
 static struct notifier_block platform_nb;
 static unsigned long keystone_dma_pfn_offset __read_mostly;
 
@@ -55,16 +50,6 @@ static int keystone_platform_notifier(struct notifier_block *nb,
 
 static void __init keystone_init(void)
 {
-	struct device_node *node;
-
-	node = of_find_compatible_node(NULL, NULL, "ti,keystone-reset");
-	if (WARN_ON(!node))
-		pr_warn("ti,keystone-reset node undefined\n");
-
-	keystone_rstctrl = of_iomap(node, 0);
-	if (WARN_ON(!keystone_rstctrl))
-		pr_warn("ti,keystone-reset iomap error\n");
-
 	keystone_pm_runtime_init();
 	if (platform_nb.notifier_call)
 		bus_register_notifier(&platform_bus_type, &platform_nb);
@@ -123,24 +108,6 @@ static const char *keystone_match[] __initconst = {
 	NULL,
 };
 
-void keystone_restart(enum reboot_mode mode, const char *cmd)
-{
-	u32 val;
-
-	BUG_ON(!keystone_rstctrl);
-
-	/* Enable write access to RSTCTRL */
-	val = readl(keystone_rstctrl);
-	val &= PLL_RESET_WRITE_KEY_MASK;
-	val |= PLL_RESET_WRITE_KEY;
-	writel(val, keystone_rstctrl);
-
-	/* Reset the SOC */
-	val = readl(keystone_rstctrl);
-	val &= ~PLL_RESET;
-	writel(val, keystone_rstctrl);
-}
-
 DT_MACHINE_START(KEYSTONE, "Keystone")
 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
 	.dma_zone_size	= SZ_2G,
@@ -148,6 +115,5 @@ DT_MACHINE_START(KEYSTONE, "Keystone")
 	.smp		= smp_ops(keystone_smp_ops),
 	.init_machine	= keystone_init,
 	.dt_compat	= keystone_match,
-	.restart	= keystone_restart,
 	.init_meminfo   = keystone_init_meminfo,
 MACHINE_END