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[WATCHDOG] Enable watchdog timer on GE Fanuc's SBC610

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Support for the FPGA based watchdog timer on GE Fanuc's SBC610.

This patch enables one of the watchdog timers found on the SBC610. There are
two identical watchdog timers at different offsets in the above mentioned
boards, however the current driver is only capable of supporting one of them.

The watchdog timers are also capable of generating interrupts at a
user-configurable threshold, though support for this operation is currently
not supported by the driver.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Martyn Welch 2008-11-10 12:31:33 +00:00 committed by Wim Van Sebroeck
parent 3268b5618f
commit 6ec9eae67a
2 changed files with 16 additions and 0 deletions
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15
arch/powerpc/boot/dts/gef_sbc610.dts
View File

@ -88,6 +88,21 @@
compatible = "gef,fpga-regs";
reg = <0x4 0x0 0x40>;
};
wdt@4,2000 {
compatible = "gef,fpga-wdt";
reg = <0x4 0x2000 0x8>;
interrupts = <0x1a 0x4>;
interrupt-parent = <&gef_pic>;
};
/* Second watchdog available, driver currently supports one.
wdt@4,2010 {
compatible = "gef,fpga-wdt";
reg = <0x4 0x2010 0x8>;
interrupts = <0x1b 0x4>;
interrupt-parent = <&gef_pic>;
};
*/
gef_pic: pic@4,4000 {
#interrupt-cells = <1>;
interrupt-controller;

1
arch/powerpc/configs/86xx/gef_sbc610_defconfig
View File

@ -1164,6 +1164,7 @@ CONFIG_WATCHDOG=y
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_ALIM7101_WDT is not set
# CONFIG_8xxx_WDT is not set
CONFIG_GEF_WDT=y
#
# PCI-based Watchdog Cards