diff options
Diffstat (limited to 'src/mainboard/dell/s1850/watchdog.c')
| -rw-r--r-- | src/mainboard/dell/s1850/watchdog.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/mainboard/dell/s1850/watchdog.c b/src/mainboard/dell/s1850/watchdog.c new file mode 100644 index 0000000000..e22ffeef80 --- /dev/null +++ b/src/mainboard/dell/s1850/watchdog.c @@ -0,0 +1,57 @@ +#include <device/pnp_def.h> + +#define NSC_WD_DEV PNP_DEV(0x2e, 0xa) +#define NSC_WDBASE 0x600 +#define ICH5_WDBASE 0x400 +#define ICH5_GPIOBASE 0x500 + +static void disable_sio_watchdog(device_t dev) +{ +#if 0 + /* FIXME move me somewhere more appropriate */ + pnp_set_logical_device(dev); + pnp_set_enable(dev, 1); + pnp_set_iobase(dev, PNP_IDX_IO0, NSC_WDBASE); + /* disable the sio watchdog */ + outb(0, NSC_WDBASE + 0); + pnp_set_enable(dev, 0); +#endif +} + +static void disable_ich5_watchdog(void) +{ + /* FIXME move me somewhere more appropriate */ + device_t dev; + unsigned long value, base; + dev = pci_locate_device(PCI_ID(0x8086, 0x24d0), 0); + if (dev == PCI_DEV_INVALID) { + die("Missing ich5?"); + } + /* Enable I/O space */ + value = pci_read_config16(dev, 0x04); + value |= (1 << 10); + pci_write_config16(dev, 0x04, value); + + /* Set and enable acpibase */ + pci_write_config32(dev, 0x40, ICH5_WDBASE | 1); + pci_write_config8(dev, 0x44, 0x10); + base = ICH5_WDBASE + 0x60; + + /* Set bit 11 in TCO1_CNT */ + value = inw(base + 0x08); + value |= 1 << 11; + outw(value, base + 0x08); + + /* Clear TCO timeout status */ + outw(0x0008, base + 0x04); + outw(0x0002, base + 0x06); +} + + +static void disable_watchdogs(void) +{ +// disable_sio_watchdog(NSC_WD_DEV); + disable_ich5_watchdog(); + print_debug("Watchdogs disabled\r\n"); +} + |