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authorRonald G. Minnich <rminnich@gmail.com>2005-10-19 17:02:34 +0000
committerRonald G. Minnich <rminnich@gmail.com>2005-10-19 17:02:34 +0000
commit20d943d9f982f777ac7d97bce56367fc4a2e6a95 (patch)
treeb97b7ea3e1baf105fbf84879a5216e0e16f734f3 /src/mainboard/dell/s1850/reset.c
parent3182cad1a3835f411bd73cce06d2b3ebc4be4aa4 (diff)
downloadcoreboot-20d943d9f982f777ac7d97bce56367fc4a2e6a95.tar.xz
adding support for dell 1850
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2054 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/mainboard/dell/s1850/reset.c')
-rw-r--r--src/mainboard/dell/s1850/reset.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/src/mainboard/dell/s1850/reset.c b/src/mainboard/dell/s1850/reset.c
new file mode 100644
index 0000000000..874bfc4848
--- /dev/null
+++ b/src/mainboard/dell/s1850/reset.c
@@ -0,0 +1,40 @@
+#include <arch/io.h>
+#include <device/pci_def.h>
+#include <device/pci_ids.h>
+#ifndef __ROMCC__
+#include <device/device.h>
+#define PCI_ID(VENDOR_ID, DEVICE_ID) \
+ ((((DEVICE_ID) & 0xFFFF) << 16) | ((VENDOR_ID) & 0xFFFF))
+#define PCI_DEV_INVALID 0
+
+static inline device_t pci_locate_device(unsigned pci_id, device_t from)
+{
+ return dev_find_device(pci_id >> 16, pci_id & 0xffff, from);
+}
+#endif
+
+void soft_reset(void)
+{
+ outb(0x04, 0xcf9);
+}
+void hard_reset(void)
+{
+ outb(0x02, 0xcf9);
+ outb(0x06, 0xcf9);
+}
+void full_reset(void)
+{
+ device_t dev;
+ /* Enable power on after power fail... */
+ dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801ER_ISA), 0);
+ if (dev != PCI_DEV_INVALID) {
+ unsigned byte;
+ byte = pci_read_config8(dev, 0xa4);
+ byte &= 0xfe;
+ pci_write_config8(dev, 0xa4, byte);
+
+ }
+ outb(0x0e, 0xcf9);
+}
+
+