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#ifndef __I386_SGI_PIIX_H
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#define __I386_SGI_PIIX_H
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/*
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 * PIIX4 as used on SGI Visual Workstations
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 */
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#define PIIX_PM_START           0x0F80
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#define SIO_GPIO_START          0x0FC0
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#define SIO_PM_START            0x0FC8
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#define PMBASE                  PIIX_PM_START
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#define GPIREG0                 (PMBASE+0x30)
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#define GPIREG(x)               (GPIREG0+((x)/8))
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#define GPIBIT(x)               (1 << ((x)%8))
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#define PIIX_GPI_BD_ID1         18
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#define PIIX_GPI_BD_ID2         19
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#define PIIX_GPI_BD_ID3         20
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#define PIIX_GPI_BD_ID4         21
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#define PIIX_GPI_BD_REG         GPIREG(PIIX_GPI_BD_ID1)
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#define PIIX_GPI_BD_MASK        (GPIBIT(PIIX_GPI_BD_ID1) | \
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                                GPIBIT(PIIX_GPI_BD_ID2) | \
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                                GPIBIT(PIIX_GPI_BD_ID3) | \
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                                GPIBIT(PIIX_GPI_BD_ID4) )
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#define PIIX_GPI_BD_SHIFT       (PIIX_GPI_BD_ID1 % 8)
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#define SIO_INDEX               0x2e
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#define SIO_DATA                0x2f
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#define SIO_DEV_SEL             0x7
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#define SIO_DEV_ENB             0x30
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#define SIO_DEV_MSB             0x60
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#define SIO_DEV_LSB             0x61
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#define SIO_GP_DEV              0x7
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#define SIO_GP_BASE             SIO_GPIO_START
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#define SIO_GP_MSB              (SIO_GP_BASE>>8)
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#define SIO_GP_LSB              (SIO_GP_BASE&0xff)
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#define SIO_GP_DATA1            (SIO_GP_BASE+0)
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#define SIO_PM_DEV              0x8
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#define SIO_PM_BASE             SIO_PM_START
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#define SIO_PM_MSB              (SIO_PM_BASE>>8)
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#define SIO_PM_LSB              (SIO_PM_BASE&0xff)
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#define SIO_PM_INDEX            (SIO_PM_BASE+0)
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#define SIO_PM_DATA             (SIO_PM_BASE+1)
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#define SIO_PM_FER2             0x1
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#define SIO_PM_GP_EN            0x80
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/*
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 * This is the dev/reg where generating a config cycle will
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 * result in a PCI special cycle.
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 */
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#define SPECIAL_DEV             0xff
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#define SPECIAL_REG             0x00
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/*
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 * PIIX4 needs to see a special cycle with the following data
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 * to be convinced the processor has gone into the stop grant
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 * state.  PIIX4 insists on seeing this before it will power
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 * down a system.
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 */
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#define PIIX_SPECIAL_STOP               0x00120002
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#define PIIX4_RESET_PORT        0xcf9
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#define PIIX4_RESET_VAL         0x6
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#define PMSTS_PORT              0xf80   // 2 bytes      PM Status
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#define PMEN_PORT               0xf82   // 2 bytes      PM Enable
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#define PMCNTRL_PORT            0xf84   // 2 bytes      PM Control
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#define PM_SUSPEND_ENABLE       0x2000  // start sequence to suspend state
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/*
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 * PMSTS and PMEN I/O bit definitions.
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 * (Bits are the same in both registers)
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 */
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#define PM_STS_RSM              (1<<15) // Resume Status
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#define PM_STS_PWRBTNOR         (1<<11) // Power Button Override
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#define PM_STS_RTC              (1<<10) // RTC status
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#define PM_STS_PWRBTN           (1<<8)  // Power Button Pressed?
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#define PM_STS_GBL              (1<<5)  // Global Status
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#define PM_STS_BM               (1<<4)  // Bus Master Status
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#define PM_STS_TMROF            (1<<0)  // Timer Overflow Status.
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/*
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 * Stop clock GPI register
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 */
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#define PIIX_GPIREG0                    (0xf80 + 0x30)
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/*
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 * Stop clock GPI bit in GPIREG0
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 */
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#define PIIX_GPI_STPCLK         0x4     // STPCLK signal routed back in
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#endif