diff options
Diffstat (limited to 'src/southbridge/intel/i82801dx/cmos_failover.c')
-rw-r--r-- | src/southbridge/intel/i82801dx/cmos_failover.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801dx/cmos_failover.c b/src/southbridge/intel/i82801dx/cmos_failover.c new file mode 100644 index 0000000..4821fad --- /dev/null +++ b/src/southbridge/intel/i82801dx/cmos_failover.c @@ -0,0 +1,16 @@ +//kind of cmos_err for ich5 +#define RTC_FAILED (1 <<2) +#define GEN_PMCON_3 0xa4 +static void check_cmos_failed(void) +{ + + uint8_t byte; + byte = pci_read_config8(PCI_DEV(0,0x1f,0),GEN_PMCON_3); + if( byte & RTC_FAILED){ +//clear bit 1 and bit 2 + byte = cmos_read(RTC_BOOT_BYTE); + byte &= 0x0c; + byte |= CONFIG_MAX_REBOOT_CNT << 4; + cmos_write(byte, RTC_BOOT_BYTE); + } +} |