From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/roms/u-boot/board/w7o/watchdog.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 qemu/roms/u-boot/board/w7o/watchdog.c (limited to 'qemu/roms/u-boot/board/w7o/watchdog.c') diff --git a/qemu/roms/u-boot/board/w7o/watchdog.c b/qemu/roms/u-boot/board/w7o/watchdog.c new file mode 100644 index 000000000..ff1b21209 --- /dev/null +++ b/qemu/roms/u-boot/board/w7o/watchdog.c @@ -0,0 +1,31 @@ +/* + * (C) Copyright 2001 + * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * W7O board level hardware watchdog. + */ +#include +#include + +#ifdef CONFIG_HW_WATCHDOG +#include + +void hw_watchdog_reset(void) +{ + volatile ushort *hwd = (ushort *)(CONFIG_SYS_W7O_EBC_PB7CR & 0xfff00000); + + /* + * Read the LMG's hwd register and toggle the + * watchdog bit to reset it. On the LMC, just + * reading it is enough, but toggling the bit + * doen't hurt either. + */ + *hwd = *hwd ^ 0x8000; + +} /* hw_watchdog_reset() */ + +#endif /* CONFIG_HW_WATCHDOG */ -- cgit 1.2.3-korg