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| author | Andrew Lunn <andrew@lunn.ch> | 2012-06-10 15:20:06 +0200 |
|---|---|---|
| committer | Andrew Lunn <andrew@lunn.ch> | 2012-07-27 16:48:38 +0200 |
| commit | 1e7bad0f5b91150fef78d732095ca84ca4a16585 (patch) | |
| tree | e207c3b588a060914f75f811aff900d70209bce7 | |
| parent | e91cac0a7746b2ce9d4134098678e3cc8cbf032d (diff) | |
| download | op-kernel-dev-1e7bad0f5b91150fef78d732095ca84ca4a16585.zip op-kernel-dev-1e7bad0f5b91150fef78d732095ca84ca4a16585.tar.gz | |
ARM: Orion: DTify the watchdog timer.
Add device tree support to the Orion watchdog timer, and enable its
use in the kirkwood devices using device tree.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
| -rw-r--r-- | Documentation/devicetree/bindings/watchdog/marvel.txt | 14 | ||||
| -rw-r--r-- | arch/arm/boot/dts/kirkwood.dtsi | 6 | ||||
| -rw-r--r-- | arch/arm/mach-kirkwood/board-dt.c | 2 | ||||
| -rw-r--r-- | drivers/watchdog/orion_wdt.c | 8 |
4 files changed, 29 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/marvel.txt b/Documentation/devicetree/bindings/watchdog/marvel.txt new file mode 100644 index 0000000..0b2503a --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/marvel.txt @@ -0,0 +1,14 @@ +* Marvell Orion Watchdog Time + +Required Properties: + +- Compatibility : "marvell,orion-wdt" +- reg : Address of the timer registers + +Example: + + wdt@20300 { + compatible = "marvell,orion-wdt"; + reg = <0x20300 0x28>; + status = "okay"; + }; diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi index 3df24cd..458d137 100644 --- a/arch/arm/boot/dts/kirkwood.dtsi +++ b/arch/arm/boot/dts/kirkwood.dtsi @@ -70,6 +70,12 @@ status = "disabled"; }; + wdt@20300 { + compatible = "marvell,orion-wdt"; + reg = <0x20300 0x28>; + status = "okay"; + }; + nand@3000000 { #address-cells = <1>; #size-cells = <1>; diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c index 24c8fdd..aa229fc 100644 --- a/arch/arm/mach-kirkwood/board-dt.c +++ b/arch/arm/mach-kirkwood/board-dt.c @@ -30,6 +30,7 @@ struct of_dev_auxdata kirkwood_auxdata_lookup[] __initdata = { OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL), OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0", NULL), + OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL), {}, }; @@ -55,7 +56,6 @@ static void __init kirkwood_dt_init(void) kirkwood_clk_init(); /* internal devices that every board has */ - kirkwood_wdt_init(); kirkwood_xor0_init(); kirkwood_xor1_init(); kirkwood_crypto_init(); diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c index 0f57369..1531e02 100644 --- a/drivers/watchdog/orion_wdt.c +++ b/drivers/watchdog/orion_wdt.c @@ -25,6 +25,7 @@ #include <linux/io.h> #include <linux/spinlock.h> #include <linux/clk.h> +#include <linux/of.h> #include <mach/bridge-regs.h> /* @@ -295,6 +296,12 @@ static void orion_wdt_shutdown(struct platform_device *pdev) orion_wdt_disable(); } +static const struct of_device_id orion_wdt_of_match_table[] __devinitdata = { + { .compatible = "marvell,orion-wdt", }, + {}, +}; +MODULE_DEVICE_TABLE(of, orion_wdt_of_match_table); + static struct platform_driver orion_wdt_driver = { .probe = orion_wdt_probe, .remove = __devexit_p(orion_wdt_remove), @@ -302,6 +309,7 @@ static struct platform_driver orion_wdt_driver = { .driver = { .owner = THIS_MODULE, .name = "orion_wdt", + .of_match_table = of_match_ptr(orion_wdt_of_match_table), }, }; |
