63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
/*
|
|
* heathrow.h: definitions for using the "Heathrow" I/O controller chip.
|
|
*
|
|
* Grabbed from Open Firmware definitions on a PowerBook G3 Series
|
|
*
|
|
* Copyright (C) 1997 Paul Mackerras.
|
|
*/
|
|
|
|
/* Front light color on Yikes/B&W G3. 32 bits */
|
|
#define HEATHROW_FRONT_LIGHT 0x32 /* (set to 0 or 0xffffffff) */
|
|
|
|
/* Brightness/contrast (gossamer iMac ?). 8 bits */
|
|
#define HEATHROW_BRIGHTNESS_CNTL 0x32
|
|
#define HEATHROW_CONTRAST_CNTL 0x33
|
|
|
|
/* offset from ohare base for feature control register */
|
|
#define HEATHROW_MBCR 0x34 /* Media bay control */
|
|
#define HEATHROW_FCR 0x38 /* Feature control */
|
|
#define HEATHROW_AUX_CNTL_REG 0x3c /* Aux control */
|
|
|
|
/*
|
|
* Bits in feature control register.
|
|
* Bits postfixed with a _N are in inverse logic
|
|
*/
|
|
#define HRW_SCC_TRANS_EN_N 0x00000001 /* Also controls modem power */
|
|
#define HRW_BAY_POWER_N 0x00000002
|
|
#define HRW_BAY_PCI_ENABLE 0x00000004
|
|
#define HRW_BAY_IDE_ENABLE 0x00000008
|
|
#define HRW_BAY_FLOPPY_ENABLE 0x00000010
|
|
#define HRW_IDE0_ENABLE 0x00000020
|
|
#define HRW_IDE0_RESET_N 0x00000040
|
|
#define HRW_BAY_DEV_MASK 0x0000001c
|
|
#define HRW_BAY_RESET_N 0x00000080
|
|
#define HRW_IOBUS_ENABLE 0x00000100 /* Internal IDE ? */
|
|
#define HRW_SCC_ENABLE 0x00000200
|
|
#define HRW_MESH_ENABLE 0x00000400
|
|
#define HRW_SWIM_ENABLE 0x00000800
|
|
#define HRW_SOUND_POWER_N 0x00001000
|
|
#define HRW_SOUND_CLK_ENABLE 0x00002000
|
|
#define HRW_SCCA_IO 0x00004000
|
|
#define HRW_SCCB_IO 0x00008000
|
|
#define HRW_PORT_OR_DESK_VIA_N 0x00010000 /* This one is 0 on PowerBook */
|
|
#define HRW_PWM_MON_ID_N 0x00020000 /* ??? (0) */
|
|
#define HRW_HOOK_MB_CNT_N 0x00040000 /* ??? (0) */
|
|
#define HRW_SWIM_CLONE_FLOPPY 0x00080000 /* ??? (0) */
|
|
#define HRW_AUD_RUN22 0x00100000 /* ??? (1) */
|
|
#define HRW_SCSI_LINK_MODE 0x00200000 /* Read ??? (1) */
|
|
#define HRW_ARB_BYPASS 0x00400000 /* Disable internal PCI arbitrer */
|
|
#define HRW_IDE1_RESET_N 0x00800000 /* Media bay */
|
|
#define HRW_SLOW_SCC_PCLK 0x01000000 /* ??? (0) */
|
|
#define HRW_RESET_SCC 0x02000000
|
|
#define HRW_MFDC_CELL_ENABLE 0x04000000 /* ??? (0) */
|
|
#define HRW_USE_MFDC 0x08000000 /* ??? (0) */
|
|
#define HRW_BMAC_IO_ENABLE 0x60000000 /* two bits, not documented in OF */
|
|
#define HRW_BMAC_RESET 0x80000000 /* not documented in OF */
|
|
|
|
/* We OR those features at boot on desktop G3s */
|
|
#define HRW_DEFAULTS (HRW_SCCA_IO | HRW_SCCB_IO | HRW_SCC_ENABLE)
|
|
|
|
/* Looks like Heathrow has some sort of GPIOs as well... */
|
|
#define HRW_GPIO_MODEM_RESET 0x6d
|
|
|