diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index bb698e1..1d91d1b 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -637,4 +637,14 @@ config INPUT_XEN_KBDDEV_FRONTEND
 	  To compile this driver as a module, choose M here: the
 	  module will be called xen-kbdfront.
 
+config INPUT_SIRFSOC_ONKEY
+	bool "CSR SiRFSoC power on/off/suspend key support"
+	depends on ARCH_SIRF
+	default y
+	help
+	  Say Y here if you want to support for the SiRFSoC power on/off/suspend key
+	  in Linux, after you press the onkey, system will suspend.
+
+	  If unsure, say N.
+
 endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index d7fc17f..829de43 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -51,6 +51,7 @@ obj-$(CONFIG_INPUT_RB532_BUTTON)	+= rb532_button.o
 obj-$(CONFIG_INPUT_RETU_PWRBUTTON)	+= retu-pwrbutton.o
 obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER)	+= rotary_encoder.o
 obj-$(CONFIG_INPUT_SGI_BTNS)		+= sgi_btns.o
+obj-$(CONFIG_INPUT_SIRFSOC_ONKEY)	+= sirfsoc-onkey.o
 obj-$(CONFIG_INPUT_SPARCSPKR)		+= sparcspkr.o
 obj-$(CONFIG_INPUT_TWL4030_PWRBUTTON)	+= twl4030-pwrbutton.o
 obj-$(CONFIG_INPUT_TWL4030_VIBRA)	+= twl4030-vibra.o
diff --git a/drivers/input/misc/sirfsoc-onkey.c b/drivers/input/misc/sirfsoc-onkey.c
new file mode 100644
index 0000000..a4aee61
--- /dev/null
+++ b/drivers/input/misc/sirfsoc-onkey.c
@@ -0,0 +1,163 @@
+/*
+ * Power key driver for SiRF PrimaII
+ *
+ * Copyright (c) 2013 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/rtc/sirfsoc_rtciobrg.h>
+#include <linux/of.h>
+
+struct sirfsoc_pwrc_drvdata {
+	u32			pwrc_base;
+	struct input_dev	*input;
+};
+
+#define PWRC_ON_KEY_BIT			(1 << 0)
+
+#define PWRC_INT_STATUS			0xc
+#define PWRC_INT_MASK			0x10
+
+static irqreturn_t sirfsoc_pwrc_isr(int irq, void *dev_id)
+{
+	struct sirfsoc_pwrc_drvdata *pwrcdrv =
+			(struct sirfsoc_pwrc_drvdata *)dev_id;
+	u32 int_status;
+	int_status = sirfsoc_rtc_iobrg_readl(
+			pwrcdrv->pwrc_base + PWRC_INT_STATUS);
+	sirfsoc_rtc_iobrg_writel(int_status & (~PWRC_ON_KEY_BIT),
+			pwrcdrv->pwrc_base + PWRC_INT_STATUS);
+
+	/*
+	 * For a typical Linux system, we report KEY_SUSPEND to trigger apm-power.c
+	 * to queue a SUSPEND APM event
+	 */
+	input_event(pwrcdrv->input, EV_PWR, KEY_SUSPEND, 1);
+	input_sync(pwrcdrv->input);
+
+	/*
+	 * Todo: report KEY_POWER event for Android platforms, Android PowerManager
+	 * will handle the suspend and powerdown/hibernation
+	 */
+
+	return IRQ_HANDLED;
+}
+
+static const struct of_device_id sirfsoc_pwrc_of_match[] = {
+	{ .compatible = "sirf,prima2-pwrc" },
+	{},
+}
+MODULE_DEVICE_TABLE(of, sirfsoc_pwrc_of_match);
+
+static int sirfsoc_pwrc_probe(struct platform_device *pdev)
+{
+	int ret, irq;
+	struct sirfsoc_pwrc_drvdata *pwrcdrv = NULL;
+	struct device_node *np = pdev->dev.of_node;
+
+	pwrcdrv = devm_kzalloc(&pdev->dev,
+		sizeof(struct sirfsoc_pwrc_drvdata), GFP_KERNEL);
+	if (!pwrcdrv) {
+		dev_info(&pdev->dev, "kzalloc fail!\n");
+		return -ENOMEM;
+	}
+
+	/*
+	 * we can't use of_iomap because pwrc is not mapped in memory, the so-called base
+	 * address is only offset in rtciobrg
+	 */
+	ret = of_property_read_u32(np, "reg", &pwrcdrv->pwrc_base);
+	if (ret) {
+		dev_err(&pdev->dev, "unable to find base address of pwrc node in dtb\n");
+		return ret;
+	}
+
+	pwrcdrv->input = devm_input_allocate_device(&pdev->dev);
+	if (!pwrcdrv->input)
+		return -ENOMEM;
+
+	pwrcdrv->input->name = "sirfsoc pwrckey";
+	pwrcdrv->input->phys = "pwrc/input0";
+
+	platform_set_drvdata(pdev, pwrcdrv);
+
+	irq = platform_get_irq(pdev, 0);
+	ret = devm_request_irq(&pdev->dev, irq,
+			sirfsoc_pwrc_isr, IRQF_SHARED,
+			"sirfsoc_pwrc_int", pwrcdrv);
+	if (ret) {
+		dev_err(&pdev->dev, "pwrc: Unable to claim irq %d; error %d\n",
+			irq, ret);
+		return ret;
+	}
+
+	sirfsoc_rtc_iobrg_writel(
+		sirfsoc_rtc_iobrg_readl(pwrcdrv->pwrc_base + PWRC_INT_MASK)
+		| PWRC_ON_KEY_BIT, pwrcdrv->pwrc_base + PWRC_INT_MASK);
+
+	pwrcdrv->input->evbit[0] = BIT_MASK(EV_PWR) | BIT_MASK(EV_KEY);
+	set_bit(KEY_POWER, pwrcdrv->input->keybit);
+
+	ret = input_register_device(pwrcdrv->input);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"pwrc: Unable to register input device,error: %d\n",
+			ret);
+		return ret;
+	}
+
+	device_init_wakeup(&pdev->dev, 1);
+
+	return 0;
+}
+
+static int sirfsoc_pwrc_remove(struct platform_device *pdev)
+{
+	device_init_wakeup(&pdev->dev, 0);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int pwrc_resume(struct device *dev)
+{
+	struct sirfsoc_pwrc_drvdata *pwrcdrv = dev_get_drvdata(dev);
+	/*
+	 * Do not mask pwrc interrupt as we want pwrc work as a wakeup source
+	 * if users touch X_ONKEY_B, see arch/arm/mach-prima2/pm.c
+	 */
+	sirfsoc_rtc_iobrg_writel(
+		sirfsoc_rtc_iobrg_readl(
+		pwrcdrv->pwrc_base + PWRC_INT_MASK) | PWRC_ON_KEY_BIT,
+		pwrcdrv->pwrc_base + PWRC_INT_MASK);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(sirfsoc_pwrc_pm_ops, NULL, pwrc_resume);
+
+static struct platform_driver sirfsoc_pwrc_driver = {
+	.probe		= sirfsoc_pwrc_probe,
+	.remove		= sirfsoc_pwrc_remove,
+	.driver		= {
+		.name	= "sirfsoc-pwrc",
+		.owner	= THIS_MODULE,
+		.pm	= &sirfsoc_pwrc_pm_ops,
+		.of_match_table = of_match_ptr(sirfsoc_pwrc_of_match),
+	}
+};
+
+module_platform_driver(sirfsoc_pwrc_driver);
+
+MODULE_LICENSE("GPLv2");
+MODULE_AUTHOR("Binghua Duan <Binghua.Duan@csr.com>, Xianglong Du <Xianglong.Du@csr.com>");
+MODULE_DESCRIPTION("CSR Prima2 PWRC Driver");
+MODULE_ALIAS("platform:sirfsoc-pwrc");
