diff options
author | Martin Roth <martinroth@google.com> | 2015-10-11 10:37:02 +0200 |
---|---|---|
committer | Ronald G. Minnich <rminnich@gmail.com> | 2015-10-22 21:51:01 +0200 |
commit | bf6b83abe06ff53033e7cd74134972de6791cf26 (patch) | |
tree | 39d542ba472cd4398a030989e824e661a8751d49 /src/southbridge/intel/fsp_bd82x6x/watchdog.c | |
parent | a4ffe8aa4981130b240eee5ed22c5bbfa1c7598b (diff) |
Revert "Remove sandybridge and ivybridge FSP code path"
Please don't remove chipsets and mainboards without discussion and input
from the owners. Someone was asking about cougar canyon 2 just a couple
of weeks ago - there's obviously still interest.
This reverts commit fb50124d22014742b6990a95df87a7a828e891b6.
Change-Id: Icd7dcea21fa4a7808b25bb8727020701aeebffc9
Signed-off-by: Martin Roth <martinroth@google.com>
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/12128
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/southbridge/intel/fsp_bd82x6x/watchdog.c')
-rw-r--r-- | src/southbridge/intel/fsp_bd82x6x/watchdog.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/southbridge/intel/fsp_bd82x6x/watchdog.c b/src/southbridge/intel/fsp_bd82x6x/watchdog.c new file mode 100644 index 0000000000..91bc615003 --- /dev/null +++ b/src/southbridge/intel/fsp_bd82x6x/watchdog.c @@ -0,0 +1,59 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008-2009 coresystems GmbH + * Copyright (C) 2011 Google Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; version 2 of + * the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc. + */ + +#include <console/console.h> +#include <arch/io.h> +#include <device/device.h> +#include <device/pci.h> +#include <watchdog.h> + + // + // Disable PCH Watchdog timer at SB_RCBA+0x3410 + // + // Mmio32((MmPci32(0, 0, 0x1F, 0, 0xF0) & ~BIT0), 0x3410) |= 0x20; + // +void watchdog_off(void) +{ + device_t dev; + unsigned long value, base; + + /* Turn off the ICH7 watchdog. */ + dev = dev_find_slot(0, PCI_DEVFN(0x1f, 0)); + + /* Enable I/O space. */ + value = pci_read_config16(dev, 0x04); + value |= (1 << 10); + pci_write_config16(dev, 0x04, value); + + /* Get TCO base. */ + base = (pci_read_config32(dev, 0x40) & 0x0fffe) + 0x60; + + /* Disable the watchdog timer. */ + value = inw(base + 0x08); + value |= 1 << 11; + outw(value, base + 0x08); + + /* Clear TCO timeout status. */ + outw(0x0008, base + 0x04); + outw(0x0002, base + 0x06); + + printk(BIOS_DEBUG, "PCH watchdog disabled\n"); +} |