-#ifdef SK_PCI_RESET
-
-/******************************************************************************
- *
- * SkGePciReset() - Reset PCI interface
- *
- * Description:
- * o Read PCI configuration.
- * o Change power state to 3.
- * o Change power state to 0.
- * o Restore PCI configuration.
- *
- * Returns:
- * 0: Success.
- * 1: Power state could not be changed to 3.
- */
-static int SkGePciReset(
-SK_AC *pAC, /* adapter context */
-SK_IOC IoC) /* IO context */
-{
- int i;
- SK_U16 PmCtlSts;
- SK_U32 Bp1;
- SK_U32 Bp2;
- SK_U16 PciCmd;
- SK_U8 Cls;
- SK_U8 Lat;
- SK_U8 ConfigSpace[PCI_CFG_SIZE];
-
- /*
- * Note: Switching to D3 state is like a software reset.
- * Switching from D3 to D0 is a hardware reset.
- * We have to save and restore the configuration space.
- */
- for (i = 0; i < PCI_CFG_SIZE; i++) {
- SkPciReadCfgDWord(pAC, i*4, &ConfigSpace[i]);
- }
-
- /* We know the RAM Interface Arbiter is enabled. */
- SkPciWriteCfgWord(pAC, PCI_PM_CTL_STS, PCI_PM_STATE_D3);
- SkPciReadCfgWord(pAC, PCI_PM_CTL_STS, &PmCtlSts);
-
- if ((PmCtlSts & PCI_PM_STATE_MSK) != PCI_PM_STATE_D3) {
- return(1);
- }
-
- /* Return to D0 state. */
- SkPciWriteCfgWord(pAC, PCI_PM_CTL_STS, PCI_PM_STATE_D0);
-
- /* Check for D0 state. */
- SkPciReadCfgWord(pAC, PCI_PM_CTL_STS, &PmCtlSts);
-
- if ((PmCtlSts & PCI_PM_STATE_MSK) != PCI_PM_STATE_D0) {
- return(1);
- }
-
- /* Check PCI Config Registers. */
- SkPciReadCfgWord(pAC, PCI_COMMAND, &PciCmd);
- SkPciReadCfgByte(pAC, PCI_CACHE_LSZ, &Cls);
- SkPciReadCfgDWord(pAC, PCI_BASE_1ST, &Bp1);
- SkPciReadCfgDWord(pAC, PCI_BASE_2ND, &Bp2);
- SkPciReadCfgByte(pAC, PCI_LAT_TIM, &Lat);
-
- if (PciCmd != 0 || Cls != (SK_U8)0 || Lat != (SK_U8)0 ||
- (Bp1 & 0xfffffff0L) != 0 || Bp2 != 1) {
- return(1);
- }
-
- /* Restore PCI Config Space. */
- for (i = 0; i < PCI_CFG_SIZE; i++) {
- SkPciWriteCfgDWord(pAC, i*4, ConfigSpace[i]);
- }
-
- return(0);
-} /* SkGePciReset */
-
-#endif /* SK_PCI_RESET */