src/southbridge/intel/i82801er/cmos_failover.c

   1 //kind of cmos_err for ich5
   2 #define RTC_FAILED    (1 <<2)
   3 #define GEN_PMCON_3     0xa4
   4 static void check_cmos_failed(void)
   5 {
   6
   7                 uint8_t byte;
   8                 byte = pci_read_config8(PCI_DEV(0,0x1f,0),GEN_PMCON_3);
   9                 if( byte & RTC_FAILED){
  10 //clear bit 1 and bit 2
  11                         byte = cmos_read(RTC_BOOT_BYTE);
  12                         byte &= 0x0c;
  13                         byte |= MAX_REBOOT_CNT << 4;
  14                         cmos_write(byte, RTC_BOOT_BYTE);
  15                 }
  16 }