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authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-01 13:49:56 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-01 13:49:56 -0700
commit0c8cfbade0e9bef5637907ed00c7b81bc86ad359 (patch)
tree4688d56fde76a0007dcb52c0a5495de3cb7346ed /Documentation
parentc12ac9f98ec08d6eb69f84e3f72241d56a8b0822 (diff)
parent6d956e422bf1848e430e0ec3610096215217cb02 (diff)
downloadlinux-0c8cfbade0e9bef5637907ed00c7b81bc86ad359.tar.bz2
Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck: "This patchset contains: - Various small clean-ups and fixes - boot logic hanegs for mpc8xxx_wdt - it87_wdt: Work around non-working CIR interrupts - iTCO_wdt: Fix the parent device - Kconfig dependencies - simplification of code with devm_ioremap_resource() or platform_driver_probe() - conversion of xilinx watchdog driver to Generic watchdog Framework - addition of extra functionality and devices for the xilinx watchdog driver - Addition of Tegra watchdog" * git://www.linux-watchdog.org/linux-watchdog: (38 commits) watchdog: Fix Elan SC520 dependencies watchdog: ib700wdt: Use platform_driver_probe watchdog: geodewdt: Use platform_driver_probe watchdog: advantechwdt: Use platform_driver_probe watchdog: acquirewdt: Use platform_driver_probe watchdog: iTCO_wdt: Fix the parent device watchdog: it87_wdt: Work around non-working CIR interrupts watchdog: bcm281xx: Fix Kconfig dependency watchdog: s3c2410_wdt: Check return value of clk_prepare_enable watchdog: s3c2410_wdt: Remove unneeded initialization watchdog: sunxi: Change compatibles watchdog: orion: prepare new Dove DT Kconfig variable watchdog: fix checkpatch warnings and error watchdog: Add tegra watchdog watchdog: xilinx: Remove no_timeout variable watchdog: xilinx: Enable this driver for Zynq watchdog: xilinx: Add missing binding watchdog: xilinx: Use correct comment indentation watchdog: xilinx: Use of_property_read_u32 watchdog: xilinx: Fix all printk messages ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt23
-rw-r--r--Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt6
-rw-r--r--Documentation/watchdog/watchdog-parameters.txt7
3 files changed, 33 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt b/Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt
new file mode 100644
index 000000000000..6d63782a7378
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/of-xilinx-wdt.txt
@@ -0,0 +1,23 @@
+Xilinx AXI/PLB soft-core watchdog Device Tree Bindings
+---------------------------------------------------------
+
+Required properties:
+- compatible : Should be "xlnx,xps-timebase-wdt-1.00.a" or
+ "xlnx,xps-timebase-wdt-1.01.a".
+- reg : Physical base address and size
+
+Optional properties:
+- clock-frequency : Frequency of clock in Hz
+- xlnx,wdt-enable-once : 0 - Watchdog can be restarted
+ 1 - Watchdog can be enabled just once
+- xlnx,wdt-interval : Watchdog timeout interval in 2^<val> clock cycles,
+ <val> is integer from 8 to 31.
+
+Example:
+axi-timebase-wdt@40100000 {
+ clock-frequency = <50000000>;
+ compatible = "xlnx,xps-timebase-wdt-1.00.a";
+ reg = <0x40100000 0x10000>;
+ xlnx,wdt-enable-once = <0x0>;
+ xlnx,wdt-interval = <0x1b>;
+} ;
diff --git a/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt b/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt
index e39cb266c8f4..b8f75c51453a 100644
--- a/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt
@@ -2,13 +2,13 @@ Allwinner SoCs Watchdog timer
Required properties:
-- compatible : should be "allwinner,<soc-family>-wdt", the currently supported
- SoC families being sun4i and sun6i
+- compatible : should be either "allwinner,sun4i-a10-wdt" or
+ "allwinner,sun6i-a31-wdt"
- reg : Specifies base physical address and size of the registers.
Example:
wdt: watchdog@01c20c90 {
- compatible = "allwinner,sun4i-wdt";
+ compatible = "allwinner,sun4i-a10-wdt";
reg = <0x01c20c90 0x10>;
};
diff --git a/Documentation/watchdog/watchdog-parameters.txt b/Documentation/watchdog/watchdog-parameters.txt
index f9492fed4104..692791cc674c 100644
--- a/Documentation/watchdog/watchdog-parameters.txt
+++ b/Documentation/watchdog/watchdog-parameters.txt
@@ -150,6 +150,8 @@ nowayout: Disable watchdog shutdown on close
-------------------------------------------------
it87_wdt:
nogameport: Forbid the activation of game port, default=0
+nocir: Forbid the use of CIR (workaround for some buggy setups); set to 1 if
+system resets despite watchdog daemon running, default=0
exclusive: Watchdog exclusive device open, default=1
timeout: Watchdog timeout in seconds, default=60
testmode: Watchdog test mode (1 = no reboot), default=0
@@ -325,6 +327,11 @@ soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
stmp3xxx_wdt:
heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
-------------------------------------------------
+tegra_wdt:
+heartbeat: Watchdog heartbeats in seconds. (default = 120)
+nowayout: Watchdog cannot be stopped once started
+ (default=kernel config parameter)
+-------------------------------------------------
ts72xx_wdt:
timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
nowayout: Disable watchdog shutdown on close