diff options
Diffstat (limited to 'include/asm-mips/sgi')
| -rw-r--r-- | include/asm-mips/sgi/gio.h | 86 | ||||
| -rw-r--r-- | include/asm-mips/sgi/hpc3.h | 317 | ||||
| -rw-r--r-- | include/asm-mips/sgi/ioc.h | 200 | ||||
| -rw-r--r-- | include/asm-mips/sgi/ip22.h | 77 | ||||
| -rw-r--r-- | include/asm-mips/sgi/mc.h | 231 | ||||
| -rw-r--r-- | include/asm-mips/sgi/pi1.h | 71 | ||||
| -rw-r--r-- | include/asm-mips/sgi/sgi.h | 47 |
7 files changed, 1029 insertions, 0 deletions
diff --git a/include/asm-mips/sgi/gio.h b/include/asm-mips/sgi/gio.h new file mode 100644 index 00000000000..a38d66f9987 --- /dev/null +++ b/include/asm-mips/sgi/gio.h @@ -0,0 +1,86 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * gio.h: Definitions for SGI GIO bus + * + * Copyright (C) 2002 Ladislav Michl + */ + +#ifndef _SGI_GIO_H +#define _SGI_GIO_H + +/* + * GIO bus addresses + * + * The Indigo and Indy have two GIO bus connectors. Indigo2 (all models) have + * three physical connectors, but only two slots, GFX and EXP0. + * + * There is 10MB of GIO address space for GIO64 slot devices + * slot# slot type address range size + * ----- --------- ----------------------- ----- + * 0 GFX 0x1f000000 - 0x1f3fffff 4MB + * 1 EXP0 0x1f400000 - 0x1f5fffff 2MB + * 2 EXP1 0x1f600000 - 0x1f9fffff 4MB + * + * There are un-slotted devices, HPC, I/O and misc devices, which are grouped + * into the HPC address space. + * - MISC 0x1fb00000 - 0x1fbfffff 1MB + * + * Following space is reserved and unused + * - RESERVED 0x18000000 - 0x1effffff 112MB + * + * GIO bus IDs + * + * Each GIO bus device identifies itself to the system by answering a + * read with an "ID" value. IDs are either 8 or 32 bits long. IDs less + * than 128 are 8 bits long, with the most significant 24 bits read from + * the slot undefined. + * + * 32-bit IDs are divided into + * bits 0:6 the product ID; ranges from 0x00 to 0x7F. + * bit 7 0=GIO Product ID is 8 bits wide + * 1=GIO Product ID is 32 bits wide. + * bits 8:15 manufacturer version for the product. + * bit 16 0=GIO32 and GIO32-bis, 1=GIO64. + * bit 17 0=no ROM present + * 1=ROM present on this board AND next three words + * space define the ROM. + * bits 18:31 up to manufacturer. + * + * IDs above 0x50/0xd0 are of 3rd party boards. + * + * 8-bit IDs + * 0x01 XPI low cost FDDI + * 0x02 GTR TokenRing + * 0x04 Synchronous ISDN + * 0x05 ATM board [*] + * 0x06 Canon Interface + * 0x07 16 bit SCSI Card [*] + * 0x08 JPEG (Double Wide) + * 0x09 JPEG (Single Wide) + * 0x0a XPI mez. FDDI device 0 + * 0x0b XPI mez. FDDI device 1 + * 0x0c SMPTE 259M Video [*] + * 0x0d Babblefish Compression [*] + * 0x0e E-Plex 8-port Ethernet + * 0x30 Lyon Lamb IVAS + * 0xb8 GIO 100BaseTX Fast Ethernet (gfe) + * + * [*] Device provide 32-bit ID. + * + */ + +#define GIO_ID(x) (x & 0x7f) +#define GIO_32BIT_ID 0x80 +#define GIO_REV(x) ((x >> 8) & 0xff) +#define GIO_64BIT_IFACE 0x10000 +#define GIO_ROM_PRESENT 0x20000 +#define GIO_VENDOR_CODE(x) ((x >> 18) & 0x3fff) + +#define GIO_SLOT_GFX_BASE 0x1f000000 +#define GIO_SLOT_EXP0_BASE 0x1f400000 +#define GIO_SLOT_EXP1_BASE 0x1f600000 + +#endif /* _SGI_GIO_H */ diff --git a/include/asm-mips/sgi/hpc3.h b/include/asm-mips/sgi/hpc3.h new file mode 100644 index 00000000000..a5b988d7327 --- /dev/null +++ b/include/asm-mips/sgi/hpc3.h @@ -0,0 +1,317 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * hpc3.h: Definitions for SGI HPC3 controller + * + * Copyright (C) 1996 David S. Miller + * Copyright (C) 1998 Ralf Baechle + */ + +#ifndef _SGI_HPC3_H +#define _SGI_HPC3_H + +#include <linux/types.h> +#include <asm/page.h> + +/* An HPC DMA descriptor. */ +struct hpc_dma_desc { + u32 pbuf; /* physical address of data buffer */ + u32 cntinfo; /* counter and info bits */ +#define HPCDMA_EOX 0x80000000 /* last desc in chain for tx */ +#define HPCDMA_EOR 0x80000000 /* last desc in chain for rx */ +#define HPCDMA_EOXP 0x40000000 /* end of packet for tx */ +#define HPCDMA_EORP 0x40000000 /* end of packet for rx */ +#define HPCDMA_XIE 0x20000000 /* irq generated when at end of this desc */ +#define HPCDMA_XIU 0x01000000 /* Tx buffer in use by CPU. */ +#define HPCDMA_EIPC 0x00ff0000 /* SEEQ ethernet special xternal bytecount */ +#define HPCDMA_ETXD 0x00008000 /* set to one by HPC when packet tx'd */ +#define HPCDMA_OWN 0x00004000 /* Denotes ring buffer ownership on rx */ +#define HPCDMA_BCNT 0x00003fff /* size in bytes of this dma buffer */ + + u32 pnext; /* paddr of next hpc_dma_desc if any */ +}; + +/* The set of regs for each HPC3 PBUS DMA channel. */ +struct hpc3_pbus_dmacregs { + volatile u32 pbdma_bptr; /* pbus dma channel buffer ptr */ + volatile u32 pbdma_dptr; /* pbus dma channel desc ptr */ + u32 _unused0[0x1000/4 - 2]; /* padding */ + volatile u32 pbdma_ctrl; /* pbus dma channel control register has + * copletely different meaning for read + * compared with write */ + /* read */ +#define HPC3_PDMACTRL_INT 0x00000001 /* interrupt (cleared after read) */ +#define HPC3_PDMACTRL_ISACT 0x00000002 /* channel active */ + /* write */ +#define HPC3_PDMACTRL_SEL 0x00000002 /* little endian transfer */ +#define HPC3_PDMACTRL_RCV 0x00000004 /* direction is receive */ +#define HPC3_PDMACTRL_FLSH 0x00000008 /* enable flush for receive DMA */ +#define HPC3_PDMACTRL_ACT 0x00000010 /* start dma transfer */ +#define HPC3_PDMACTRL_LD 0x00000020 /* load enable for ACT */ +#define HPC3_PDMACTRL_RT 0x00000040 /* Use realtime GIO bus servicing */ +#define HPC3_PDMACTRL_HW 0x0000ff00 /* DMA High-water mark */ +#define HPC3_PDMACTRL_FB 0x003f0000 /* Ptr to beginning of fifo */ +#define HPC3_PDMACTRL_FE 0x3f000000 /* Ptr to end of fifo */ + + u32 _unused1[0x1000/4 - 1]; /* padding */ +}; + +/* The HPC3 SCSI registers, this does not include external ones. */ +struct hpc3_scsiregs { + volatile u32 cbptr; /* current dma buffer ptr, diagnostic use only */ + volatile u32 ndptr; /* next dma descriptor ptr */ + u32 _unused0[0x1000/4 - 2]; /* padding */ + volatile u32 bcd; /* byte count info */ +#define HPC3_SBCD_BCNTMSK 0x00003fff /* bytes to transfer from/to memory */ +#define HPC3_SBCD_XIE 0x00004000 /* Send IRQ when done with cur buf */ +#define HPC3_SBCD_EOX 0x00008000 /* Indicates this is last buf in chain */ + + volatile u32 ctrl; /* control register */ +#define HPC3_SCTRL_IRQ 0x01 /* IRQ asserted, either dma done or parity */ +#define HPC3_SCTRL_ENDIAN 0x02 /* DMA endian mode, 0=big 1=little */ +#define HPC3_SCTRL_DIR 0x04 /* DMA direction, 1=dev2mem 0=mem2dev */ +#define HPC3_SCTRL_FLUSH 0x08 /* Tells HPC3 to flush scsi fifos */ +#define HPC3_SCTRL_ACTIVE 0x10 /* SCSI DMA channel is active */ +#define HPC3_SCTRL_AMASK 0x20 /* DMA active inhibits PIO */ +#define HPC3_SCTRL_CRESET 0x40 /* Resets dma channel and external controller */ +#define HPC3_SCTRL_PERR 0x80 /* Bad parity on HPC3 iface to scsi controller */ + + volatile u32 gfptr; /* current GIO fifo ptr */ + volatile u32 dfptr; /* current device fifo ptr */ + volatile u32 dconfig; /* DMA configuration register */ +#define HPC3_SDCFG_HCLK 0x00001 /* Enable DMA half clock mode */ +#define HPC3_SDCFG_D1 0x00006 /* Cycles to spend in D1 state */ +#define HPC3_SDCFG_D2 0x00038 /* Cycles to spend in D2 state */ +#define HPC3_SDCFG_D3 0x001c0 /* Cycles to spend in D3 state */ +#define HPC3_SDCFG_HWAT 0x00e00 /* DMA high water mark */ +#define HPC3_SDCFG_HW 0x01000 /* Enable 16-bit halfword DMA accesses to scsi */ +#define HPC3_SDCFG_SWAP 0x02000 /* Byte swap all DMA accesses */ +#define HPC3_SDCFG_EPAR 0x04000 /* Enable parity checking for DMA */ +#define HPC3_SDCFG_POLL 0x08000 /* hd_dreq polarity control */ +#define HPC3_SDCFG_ERLY 0x30000 /* hd_dreq behavior control bits */ + + volatile u32 pconfig; /* PIO configuration register */ +#define HPC3_SPCFG_P3 0x0003 /* Cycles to spend in P3 state */ +#define HPC3_SPCFG_P2W 0x001c /* Cycles to spend in P2 state for writes */ +#define HPC3_SPCFG_P2R 0x01e0 /* Cycles to spend in P2 state for reads */ +#define HPC3_SPCFG_P1 0x0e00 /* Cycles to spend in P1 state */ +#define HPC3_SPCFG_HW 0x1000 /* Enable 16-bit halfword PIO accesses to scsi */ +#define HPC3_SPCFG_SWAP 0x2000 /* Byte swap all PIO accesses */ +#define HPC3_SPCFG_EPAR 0x4000 /* Enable parity checking for PIO */ +#define HPC3_SPCFG_FUJI 0x8000 /* Fujitsu scsi controller mode for faster dma/pio */ + + u32 _unused1[0x1000/4 - 6]; /* padding */ +}; + +/* SEEQ ethernet HPC3 registers, only one seeq per HPC3. */ +struct hpc3_ethregs { + /* Receiver registers. */ + volatile u32 rx_cbptr; /* current dma buffer ptr, diagnostic use only */ + volatile u32 rx_ndptr; /* next dma descriptor ptr */ + u32 _unused0[0x1000/4 - 2]; /* padding */ + volatile u32 rx_bcd; /* byte count info */ +#define HPC3_ERXBCD_BCNTMSK 0x00003fff /* bytes to be sent to memory */ +#define HPC3_ERXBCD_XIE 0x20000000 /* HPC3 interrupts cpu at end of this buf */ +#define HPC3_ERXBCD_EOX 0x80000000 /* flags this as end of descriptor chain */ + + volatile u32 rx_ctrl; /* control register */ +#define HPC3_ERXCTRL_STAT50 0x0000003f /* Receive status reg bits of Seeq8003 */ +#define HPC3_ERXCTRL_STAT6 0x00000040 /* Rdonly irq status */ +#define HPC3_ERXCTRL_STAT7 0x00000080 /* Rdonlt old/new status bit from Seeq */ +#define HPC3_ERXCTRL_ENDIAN 0x00000100 /* Endian for dma channel, little=1 big=0 */ +#define HPC3_ERXCTRL_ACTIVE 0x00000200 /* Tells if DMA transfer is in progress */ +#define HPC3_ERXCTRL_AMASK 0x00000400 /* Tells if ACTIVE inhibits PIO's to hpc3 */ +#define HPC3_ERXCTRL_RBO 0x00000800 /* Receive buffer overflow if set to 1 */ + + volatile u32 rx_gfptr; /* current GIO fifo ptr */ + volatile u32 rx_dfptr; /* current device fifo ptr */ + u32 _unused1; /* padding */ + volatile u32 rx_reset; /* reset register */ +#define HPC3_ERXRST_CRESET 0x1 /* Reset dma channel and external controller */ +#define HPC3_ERXRST_CLRIRQ 0x2 /* Clear channel interrupt */ +#define HPC3_ERXRST_LBACK 0x4 /* Enable diagnostic loopback mode of Seeq8003 */ + + volatile u32 rx_dconfig; /* DMA configuration register */ +#define HPC3_ERXDCFG_D1 0x0000f /* Cycles to spend in D1 state for PIO */ +#define HPC3_ERXDCFG_D2 0x000f0 /* Cycles to spend in D2 state for PIO */ +#define HPC3_ERXDCFG_D3 0x00f00 /* Cycles to spend in D3 state for PIO */ +#define HPC3_ERXDCFG_WCTRL 0x01000 /* Enable writes of desc into ex ctrl port */ +#define HPC3_ERXDCFG_FRXDC 0x02000 /* Clear eop stat bits upon rxdc, hw seeq fix */ +#define HPC3_ERXDCFG_FEOP 0x04000 /* Bad packet marker timeout enable */ +#define HPC3_ERXDCFG_FIRQ 0x08000 /* Another bad packet timeout enable */ +#define HPC3_ERXDCFG_PTO 0x30000 /* Programmed timeout value for above two */ + + volatile u32 rx_pconfig; /* PIO configuration register */ +#define HPC3_ERXPCFG_P1 0x000f /* Cycles to spend in P1 state for PIO */ +#define HPC3_ERXPCFG_P2 0x00f0 /* Cycles to spend in P2 state for PIO */ +#define HPC3_ERXPCFG_P3 0x0f00 /* Cycles to spend in P3 state for PIO */ +#define HPC3_ERXPCFG_TST 0x1000 /* Diagnistic ram test feature bit */ + + u32 _unused2[0x1000/4 - 8]; /* padding */ + + /* Transmitter registers. */ + volatile u32 tx_cbptr; /* current dma buffer ptr, diagnostic use only */ + volatile u32 tx_ndptr; /* next dma descriptor ptr */ + u32 _unused3[0x1000/4 - 2]; /* padding */ + volatile u32 tx_bcd; /* byte count info */ +#define HPC3_ETXBCD_BCNTMSK 0x00003fff /* bytes to be read from memory */ +#define HPC3_ETXBCD_ESAMP 0x10000000 /* if set, too late to add descriptor */ +#define HPC3_ETXBCD_XIE 0x20000000 /* Interrupt cpu at end of cur desc */ +#define HPC3_ETXBCD_EOP 0x40000000 /* Last byte of cur buf is end of packet */ +#define HPC3_ETXBCD_EOX 0x80000000 /* This buf is the end of desc chain */ + + volatile u32 tx_ctrl; /* control register */ +#define HPC3_ETXCTRL_STAT30 0x0000000f /* Rdonly copy of seeq tx stat reg */ +#define HPC3_ETXCTRL_STAT4 0x00000010 /* Indicate late collision occurred */ +#define HPC3_ETXCTRL_STAT75 0x000000e0 /* Rdonly irq status from seeq */ +#define HPC3_ETXCTRL_ENDIAN 0x00000100 /* DMA channel endian mode, 1=little 0=big */ +#define HPC3_ETXCTRL_ACTIVE 0x00000200 /* DMA tx channel is active */ +#define HPC3_ETXCTRL_AMASK 0x00000400 /* Indicates ACTIVE inhibits PIO's */ + + volatile u32 tx_gfptr; /* current GIO fifo ptr */ + volatile u32 tx_dfptr; /* current device fifo ptr */ + u32 _unused4[0x1000/4 - 4]; /* padding */ +}; + +struct hpc3_regs { + /* First regs for the PBUS 8 dma channels. */ + struct hpc3_pbus_dmacregs pbdma[8]; + + /* Now the HPC scsi registers, we get two scsi reg sets. */ + struct hpc3_scsiregs scsi_chan0, scsi_chan1; + + /* The SEEQ hpc3 ethernet dma/control registers. */ + struct hpc3_ethregs ethregs; + + /* Here are where the hpc3 fifo's can be directly accessed + * via PIO accesses. Under normal operation we never stick + * our grubby paws in here so it's just padding. */ + u32 _unused0[0x18000/4]; + + /* HPC3 irq status regs. Due to a peculiar bug you need to + * look at two different register addresses to get at all of + * the status bits. The first reg can only reliably report + * bits 4:0 of the status, and the second reg can only + * reliably report bits 9:5 of the hpc3 irq status. I told + * you it was a peculiar bug. ;-) + */ + volatile u32 istat0; /* Irq status, only bits <4:0> reliable. */ +#define HPC3_ISTAT_PBIMASK 0x0ff /* irq bits for pbus devs 0 --> 7 */ +#define HPC3_ISTAT_SC0MASK 0x100 /* irq bit for scsi channel 0 */ +#define HPC3_ISTAT_SC1MASK 0x200 /* irq bit for scsi channel 1 */ + + volatile u32 gio_misc; /* GIO misc control bits. */ +#define HPC3_GIOMISC_ERTIME 0x1 /* Enable external timer real time. */ +#define HPC3_GIOMISC_DENDIAN 0x2 /* dma descriptor endian, 1=lit 0=big */ + + volatile u32 eeprom; /* EEPROM data reg. */ +#define HPC3_EEPROM_EPROT 0x01 /* Protect register enable */ +#define HPC3_EEPROM_CSEL 0x02 /* Chip select */ +#define HPC3_EEPROM_ECLK 0x04 /* EEPROM clock */ +#define HPC3_EEPROM_DATO 0x08 /* Data out */ +#define HPC3_EEPROM_DATI 0x10 /* Data in */ + + volatile u32 istat1; /* Irq status, only bits <9:5> reliable. */ + volatile u32 bestat; /* Bus error interrupt status reg. */ +#define HPC3_BESTAT_BLMASK 0x000ff /* Bus lane where bad parity occurred */ +#define HPC3_BESTAT_CTYPE 0x00100 /* Bus cycle type, 0=PIO 1=DMA */ +#define HPC3_BESTAT_PIDSHIFT 9 +#define HPC3_BESTAT_PIDMASK 0x3f700 /* DMA channel parity identifier */ + + u32 _unused1[0x14000/4 - 5]; /* padding */ + + /* Now direct PIO per-HPC3 peripheral access to external regs. */ + volatile u32 scsi0_ext[256]; /* SCSI channel 0 external regs */ + u32 _unused2[0x7c00/4]; + volatile u32 scsi1_ext[256]; /* SCSI channel 1 external regs */ + u32 _unused3[0x7c00/4]; + volatile u32 eth_ext[320]; /* Ethernet external registers */ + u32 _unused4[0x3b00/4]; + + /* Per-peripheral device external registers and DMA/PIO control. */ + volatile u32 pbus_extregs[16][256]; + volatile u32 pbus_dmacfg[8][128]; + /* Cycles to spend in D3 for reads */ +#define HPC3_DMACFG_D3R_MASK 0x00000001 +#define HPC3_DMACFG_D3R_SHIFT 0 + /* Cycles to spend in D4 for reads */ +#define HPC3_DMACFG_D4R_MASK 0x0000001e +#define HPC3_DMACFG_D4R_SHIFT 1 + /* Cycles to spend in D5 for reads */ +#define HPC3_DMACFG_D5R_MASK 0x000001e0 +#define HPC3_DMACFG_D5R_SHIFT 5 + /* Cycles to spend in D3 for writes */ +#define HPC3_DMACFG_D3W_MASK 0x00000200 +#define HPC3_DMACFG_D3W_SHIFT 9 + /* Cycles to spend in D4 for writes */ +#define HPC3_DMACFG_D4W_MASK 0x00003c00 +#define HPC3_DMACFG_D4W_SHIFT 10 + /* Cycles to spend in D5 for writes */ +#define HPC3_DMACFG_D5W_MASK 0x0003c000 +#define HPC3_DMACFG_D5W_SHIFT 14 + /* Enable 16-bit DMA access mode */ +#define HPC3_DMACFG_DS16 0x00040000 + /* Places halfwords on high 16 bits of bus */ +#define HPC3_DMACFG_EVENHI 0x00080000 + /* Make this device real time */ +#define HPC3_DMACFG_RTIME 0x00200000 + /* 5 bit burst count for DMA device */ +#define HPC3_DMACFG_BURST_MASK 0x07c00000 +#define HPC3_DMACFG_BURST_SHIFT 22 + /* Use live pbus_dreq unsynchronized signal */ +#define HPC3_DMACFG_DRQLIVE 0x08000000 + volatile u32 pbus_piocfg[16][64]; + /* Cycles to spend in P2 state for reads */ +#define HPC3_PIOCFG_P2R_MASK 0x00001 +#define HPC3_PIOCFG_P2R_SHIFT 0 + /* Cycles to spend in P3 state for reads */ +#define HPC3_PIOCFG_P3R_MASK 0x0001e +#define HPC3_PIOCFG_P3R_SHIFT 1 + /* Cycles to spend in P4 state for reads */ +#define HPC3_PIOCFG_P4R_MASK 0x001e0 +#define HPC3_PIOCFG_P4R_SHIFT 5 + /* Cycles to spend in P2 state for writes */ +#define HPC3_PIOCFG_P2W_MASK 0x00200 +#define HPC3_PIOCFG_P2W_SHIFT 9 + /* Cycles to spend in P3 state for writes */ +#define HPC3_PIOCFG_P3W_MASK 0x03c00 +#define HPC3_PIOCFG_P3W_SHIFT 10 + /* Cycles to spend in P4 state for writes */ +#define HPC3_PIOCFG_P4W_MASK 0x3c000 +#define HPC3_PIOCFG_P4W_SHIFT 14 + /* Enable 16-bit PIO accesses */ +#define HPC3_PIOCFG_DS16 0x40000 + /* Place even address bits in bits <15:8> */ +#define HPC3_PIOCFG_EVENHI 0x80000 + + /* PBUS PROM control regs. */ + volatile u32 pbus_promwe; /* PROM write enable register */ +#define HPC3_PROM_WENAB 0x1 /* Enable writes to the PROM */ + + u32 _unused5[0x0800/4 - 1]; + volatile u32 pbus_promswap; /* Chip select swap reg */ +#define HPC3_PROM_SWAP 0x1 /* invert GIO addr bit to select prom0 or prom1 */ + + u32 _unused6[0x0800/4 - 1]; + volatile u32 pbus_gout; /* PROM general purpose output reg */ +#define HPC3_PROM_STAT 0x1 /* General purpose status bit in gout */ + + u32 _unused7[0x1000/4 - 1]; + volatile u32 rtcregs[14]; /* Dallas clock registers */ + u32 _unused8[50]; + volatile u32 bbram[8192-50-14]; /* Battery backed ram */ +}; + +/* + * It is possible to have two HPC3's within the address space on + * one machine, though only having one is more likely on an Indy. + */ +extern struct hpc3_regs *hpc3c0, *hpc3c1; +#define HPC3_CHIP0_BASE 0x1fb80000 /* physical */ +#define HPC3_CHIP1_BASE 0x1fb00000 /* physical */ + +extern void sgihpc_init(void); + +#endif /* _SGI_HPC3_H */ diff --git a/include/asm-mips/sgi/ioc.h b/include/asm-mips/sgi/ioc.h new file mode 100644 index 00000000000..169187f53fb --- /dev/null +++ b/include/asm-mips/sgi/ioc.h @@ -0,0 +1,200 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * ioc.h: Definitions for SGI I/O Controller + * + * Copyright (C) 1996 David S. Miller + * Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle + * Copyright (C) 2001, 2003 Ladislav Michl + */ + +#ifndef _SGI_IOC_H +#define _SGI_IOC_H + +#include <linux/types.h> +#include <asm/sgi/pi1.h> + +/* + * All registers are 8-bit wide alligned on 32-bit boundary. Bad things + * happen if you try word access them. You have been warned. + */ + +struct sgioc_uart_regs { + u8 _ctrl1[3]; + volatile u8 ctrl1; + u8 _data1[3]; + volatile u8 data1; + u8 _ctrl2[3]; + volatile u8 ctrl2; + u8 _data2[3]; + volatile u8 data2; +}; + +struct sgioc_keyb_regs { + u8 _data[3]; + volatile u8 data; + u8 _command[3]; + volatile u8 command; +}; + +struct sgint_regs { + u8 _istat0[3]; + volatile u8 istat0; /* Interrupt status zero */ +#define SGINT_ISTAT0_FFULL 0x01 +#define SGINT_ISTAT0_SCSI0 0x02 +#define SGINT_ISTAT0_SCSI1 0x04 +#define SGINT_ISTAT0_ENET 0x08 +#define SGINT_ISTAT0_GFXDMA 0x10 +#define SGINT_ISTAT0_PPORT 0x20 +#define SGINT_ISTAT0_HPC2 0x40 +#define SGINT_ISTAT0_LIO2 0x80 + u8 _imask0[3]; + volatile u8 imask0; /* Interrupt mask zero */ + u8 _istat1[3]; + volatile u8 istat1; /* Interrupt status one */ +#define SGINT_ISTAT1_ISDNI 0x01 +#define SGINT_ISTAT1_PWR 0x02 +#define SGINT_ISTAT1_ISDNH 0x04 +#define SGINT_ISTAT1_LIO3 0x08 +#define SGINT_ISTAT1_HPC3 0x10 +#define SGINT_ISTAT1_AFAIL 0x20 +#define SGINT_ISTAT1_VIDEO 0x40 +#define SGINT_ISTAT1_GIO2 0x80 + u8 _imask1[3]; + volatile u8 imask1; /* Interrupt mask one */ + u8 _vmeistat[3]; + volatile u8 vmeistat; /* VME interrupt status */ + u8 _cmeimask0[3]; + volatile u8 cmeimask0; /* VME interrupt mask zero */ + u8 _cmeimask1[3]; + volatile u8 cmeimask1; /* VME interrupt mask one */ + u8 _cmepol[3]; + volatile u8 cmepol; /* VME polarity */ + u8 _tclear[3]; + volatile u8 tclear; + u8 _errstat[3]; + volatile u8 errstat; /* Error status reg, reserved on INT2 */ + u32 _unused0[2]; + u8 _tcnt0[3]; + volatile u8 tcnt0; /* counter 0 */ + u8 _tcnt1[3]; + volatile u8 tcnt1; /* counter 1 */ + u8 _tcnt2[3]; + volatile u8 tcnt2; /* counter 2 */ + u8 _tcword[3]; + volatile u8 tcword; /* control word */ +#define SGINT_TCWORD_BCD 0x01 /* Use BCD mode for counters */ +#define SGINT_TCWORD_MMASK 0x0e /* Mode bitmask. */ +#define SGINT_TCWORD_MITC 0x00 /* IRQ on terminal count (doesn't work) */ +#define SGINT_TCWORD_MOS 0x02 /* One-shot IRQ mode. */ +#define SGINT_TCWORD_MRGEN 0x04 /* Normal rate generation */ +#define SGINT_TCWORD_MSWGEN 0x06 /* Square wave generator mode */ +#define SGINT_TCWORD_MSWST 0x08 /* Software strobe */ +#define SGINT_TCWORD_MHWST 0x0a /* Hardware strobe */ +#define SGINT_TCWORD_CMASK 0x30 /* Command mask */ +#define SGINT_TCWORD_CLAT 0x00 /* Latch command */ +#define SGINT_TCWORD_CLSB 0x10 /* LSB read/write */ +#define SGINT_TCWORD_CMSB 0x20 /* MSB read/write */ +#define SGINT_TCWORD_CALL 0x30 /* Full counter read/write */ +#define SGINT_TCWORD_CNT0 0x00 /* Select counter zero */ +#define SGINT_TCWORD_CNT1 0x40 /* Select counter one */ +#define SGINT_TCWORD_CNT2 0x80 /* Select counter two */ +#define SGINT_TCWORD_CRBCK 0xc0 /* Readback command */ +}; + +/* + * The timer is the good old 8254. Unlike in PCs it's clocked at exactly 1MHz + */ +#define SGINT_TIMER_CLOCK 1000000 + +/* + * This is the constant we're using for calibrating the counter. + */ +#define SGINT_TCSAMP_COUNTER ((SGINT_TIMER_CLOCK / HZ) + 255) + +/* We need software copies of these because they are write only. */ +extern u8 sgi_ioc_reset, sgi_ioc_write; + +struct sgioc_regs { + struct pi1_regs pport; + u32 _unused0[2]; + struct sgioc_uart_regs uart; + struct sgioc_keyb_regs kbdmouse; + u8 _gcsel[3]; + volatile u8 gcsel; + u8 _genctrl[3]; + volatile u8 genctrl; + u8 _panel[3]; + volatile u8 panel; +#define SGIOC_PANEL_POWERON 0x01 +#define SGIOC_PANEL_POWERINTR 0x02 +#define SGIOC_PANEL_VOLDNINTR 0x10 +#define SGIOC_PANEL_VOLDNHOLD 0x20 +#define SGIOC_PANEL_VOLUPINTR 0x40 +#define SGIOC_PANEL_VOLUPHOLD 0x80 + u32 _unused1; + u8 _sysid[3]; + volatile u8 sysid; +#define SGIOC_SYSID_FULLHOUSE 0x01 +#define SGIOC_SYSID_BOARDREV(x) ((x & 0xe0) > 5) +#define SGIOC_SYSID_CHIPREV(x) ((x & 0x1e) > 1) + u32 _unused2; + u8 _read[3]; + volatile u8 read; + u32 _unused3; + u8 _dmasel[3]; + volatile u8 dmasel; +#define SGIOC_DMASEL_SCLK10MHZ 0x00 /* use 10MHZ serial clock */ +#define SGIOC_DMASEL_ISDNB 0x01 /* enable isdn B */ +#define SGIOC_DMASEL_ISDNA 0x02 /* enable isdn A */ +#define SGIOC_DMASEL_PPORT 0x04 /* use parallel DMA */ +#define SGIOC_DMASEL_SCLK667MHZ 0x10 /* use 6.67MHZ serial clock */ +#define SGIOC_DMASEL_SCLKEXT 0x20 /* use external serial clock */ + u32 _unused4; + u8 _reset[3]; + volatile u8 reset; +#define SGIOC_RESET_PPORT 0x01 /* 0=parport reset, 1=nornal */ +#define SGIOC_RESET_KBDMOUSE 0x02 /* 0=kbdmouse reset, 1=normal */ +#define SGIOC_RESET_EISA 0x04 /* 0=eisa reset, 1=normal */ +#define SGIOC_RESET_ISDN 0x08 /* 0=isdn reset, 1=normal */ +#define SGIOC_RESET_LC0OFF 0x10 /* guiness: turn led off (red, else green) */ +#define SGIOC_RESET_LC1OFF 0x20 /* guiness: turn led off (green, else amber) */ + u32 _unused5; + u8 _write[3]; + volatile u8 write; +#define SGIOC_WRITE_NTHRESH 0x01 /* use 4.5db threshhold */ +#define SGIOC_WRITE_TPSPEED 0x02 /* use 100ohm TP speed */ +#define SGIOC_WRITE_EPSEL 0x04 /* force cable mode: 1=AUI 0=TP */ +#define SGIOC_WRITE_EASEL 0x08 /* 1=autoselect 0=manual cable selection */ +#define SGIOC_WRITE_U1AMODE 0x10 /* 1=PC 0=MAC UART mode */ +#define SGIOC_WRITE_U0AMODE 0x20 /* 1=PC 0=MAC UART mode */ +#define SGIOC_WRITE_MLO 0x40 /* 1=4.75V 0=+5V */ +#define SGIOC_WRITE_MHI 0x80 /* 1=5.25V 0=+5V */ + u32 _unused6; + struct sgint_regs int3; + u32 _unused7[16]; + volatile u32 extio; /* FullHouse only */ +#define EXTIO_S0_IRQ_3 0x8000 /* S0: vid.vsync */ +#define EXTIO_S0_IRQ_2 0x4000 /* S0: gfx.fifofull */ +#define EXTIO_S0_IRQ_1 0x2000 /* S0: gfx.int */ +#define EXTIO_S0_RETRACE 0x1000 +#define EXTIO_SG_IRQ_3 0x0800 /* SG: vid.vsync */ +#define EXTIO_SG_IRQ_2 0x0400 /* SG: gfx.fifofull */ +#define EXTIO_SG_IRQ_1 0x0200 /* SG: gfx.int */ +#define EXTIO_SG_RETRACE 0x0100 +#define EXTIO_GIO_33MHZ 0x0080 +#define EXTIO_EISA_BUSERR 0x0040 +#define EXTIO_MC_BUSERR 0x0020 +#define EXTIO_HPC3_BUSERR 0x0010 +#define EXTIO_S0_STAT_1 0x0008 +#define EXTIO_S0_STAT_0 0x0004 +#define EXTIO_SG_STAT_1 0x0002 +#define EXTIO_SG_STAT_0 0x0001 +}; + +extern struct sgioc_regs *sgioc; +extern struct sgint_regs *sgint; + +#endif diff --git a/include/asm-mips/sgi/ip22.h b/include/asm-mips/sgi/ip22.h new file mode 100644 index 00000000000..97d73adb4e4 --- /dev/null +++ b/include/asm-mips/sgi/ip22.h @@ -0,0 +1,77 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * ip22.h: Definitions for SGI IP22 machines + * + * Copyright (C) 1996 David S. Miller + * Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle + */ + +#ifndef _SGI_IP22_H +#define _SGI_IP22_H + +/* + * These are the virtual IRQ numbers, we divide all IRQ's into + * 'spaces', the 'space' determines where and how to enable/disable + * that particular IRQ on an SGI machine. HPC DMA and MC DMA interrups + * are not supported this way. Driver is supposed to allocate HPC/MC + * interrupt as shareable and then look to proper status bit (see + * HAL2 driver). This will prevent many complications, trust me ;-) + */ + +#include <asm/sgi/ioc.h> + +#define SGINT_EISA 0 /* 16 EISA irq levels (Indigo2) */ +#define SGINT_CPU 16 /* MIPS CPU define 8 interrupt sources */ +#define SGINT_LOCAL0 24 /* 8 local0 irq levels */ +#define SGINT_LOCAL1 32 /* 8 local1 irq levels */ +#define SGINT_LOCAL2 40 /* 8 local2 vectored irq levels */ +#define SGINT_LOCAL3 48 /* 8 local3 vectored irq levels */ +#define SGINT_END 56 /* End of 'spaces' */ + +/* + * Individual interrupt definitions for the Indy and Indigo2 + */ + +#define SGI_SOFT_0_IRQ SGINT_CPU + 0 +#define SGI_SOFT_1_IRQ SGINT_CPU + 1 +#define SGI_LOCAL_0_IRQ SGINT_CPU + 2 +#define SGI_LOCAL_1_IRQ SGINT_CPU + 3 +#define SGI_8254_0_IRQ SGINT_CPU + 4 +#define SGI_8254_1_IRQ SGINT_CPU + 5 +#define SGI_BUSERR_IRQ SGINT_CPU + 6 +#define SGI_TIMER_IRQ SGINT_CPU + 7 + +#define SGI_FIFO_IRQ SGINT_LOCAL0 + 0 /* FIFO full */ +#define SGI_GIO_0_IRQ SGI_FIFO_IRQ /* GIO-0 */ +#define SGI_WD93_0_IRQ SGINT_LOCAL0 + 1 /* 1st onboard WD93 */ +#define SGI_WD93_1_IRQ SGINT_LOCAL0 + 2 /* 2nd onboard WD93 */ +#define SGI_ENET_IRQ SGINT_LOCAL0 + 3 /* onboard ethernet */ +#define SGI_MCDMA_IRQ SGINT_LOCAL0 + 4 /* MC DMA done */ +#define SGI_PARPORT_IRQ SGINT_LOCAL0 + 5 /* Parallel port */ +#define SGI_GIO_1_IRQ SGINT_LOCAL0 + 6 /* GE / GIO-1 / 2nd-HPC */ +#define SGI_MAP_0_IRQ SGINT_LOCAL0 + 7 /* Mappable interrupt 0 */ + +#define SGI_GPL0_IRQ SGINT_LOCAL1 + 0 /* General Purpose LOCAL1_N<0> */ +#define SGI_PANEL_IRQ SGINT_LOCAL1 + 1 /* front panel */ +#define SGI_GPL2_IRQ SGINT_LOCAL1 + 2 /* General Purpose LOCAL1_N<2> */ +#define SGI_MAP_1_IRQ SGINT_LOCAL1 + 3 /* Mappable interrupt 1 */ +#define SGI_HPCDMA_IRQ SGINT_LOCAL1 + 4 /* HPC DMA done */ +#define SGI_ACFAIL_IRQ SGINT_LOCAL1 + 5 /* AC fail */ +#define SGI_VINO_IRQ SGINT_LOCAL1 + 6 /* Indy VINO */ +#define SGI_GIO_2_IRQ SGINT_LOCAL1 + 7 /* Vert retrace / GIO-2 */ + +/* Mapped interrupts. These interrupts may be mapped to either 0, or 1 */ +#define SGI_VERT_IRQ SGINT_LOCAL2 + 0 /* INT3: newport vertical status */ +#define SGI_EISA_IRQ SGINT_LOCAL2 + 3 /* EISA interrupts */ +#define SGI_KEYBD_IRQ SGINT_LOCAL2 + 4 /* keyboard */ +#define SGI_SERIAL_IRQ SGINT_LOCAL2 + 5 /* onboard serial */ + +#define ip22_is_fullhouse() (sgioc->sysid & SGIOC_SYSID_FULLHOUSE) + +extern unsigned short ip22_eeprom_read(volatile unsigned int *ctrl, int reg); +extern unsigned short ip22_nvram_read(int reg); + +#endif diff --git a/include/asm-mips/sgi/mc.h b/include/asm-mips/sgi/mc.h new file mode 100644 index 00000000000..fd98f930607 --- /dev/null +++ b/include/asm-mips/sgi/mc.h @@ -0,0 +1,231 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * mc.h: Definitions for SGI Memory Controller + * + * Copyright (C) 1996 David S. Miller + * Copyright (C) 1999 Ralf Baechle + * Copyright (C) 1999 Silicon Graphics, Inc. + */ + +#ifndef _SGI_MC_H +#define _SGI_MC_H + +struct sgimc_regs { + u32 _unused0; + volatile u32 cpuctrl0; /* CPU control register 0, readwrite */ +#define SGIMC_CCTRL0_REFS 0x0000000f /* REFS mask */ +#define SGIMC_CCTRL0_EREFRESH 0x00000010 /* Memory refresh enable */ +#define SGIMC_CCTRL0_EPERRGIO 0x00000020 /* GIO parity error enable */ +#define SGIMC_CCTRL0_EPERRMEM 0x00000040 /* Main mem parity error enable */ +#define SGIMC_CCTRL0_EPERRCPU 0x00000080 /* CPU bus parity error enable */ +#define SGIMC_CCTRL0_WDOG 0x00000100 /* Watchdog timer enable */ +#define SGIMC_CCTRL0_SYSINIT 0x00000200 /* System init bit */ +#define SGIMC_CCTRL0_GFXRESET 0x00000400 /* Graphics interface reset */ +#define SGIMC_CCTRL0_EISALOCK 0x00000800 /* Lock CPU from memory for EISA */ +#define SGIMC_CCTRL0_EPERRSCMD 0x00001000 /* SysCMD bus parity error enable */ +#define SGIMC_CCTRL0_IENAB 0x00002000 /* Allow interrupts from MC */ +#define SGIMC_CCTRL0_ESNOOP 0x00004000 /* Snooping I/O enable */ +#define SGIMC_CCTRL0_EPROMWR 0x00008000 /* Prom writes from cpu enable */ +#define SGIMC_CCTRL0_WRESETPMEM 0x00010000 /* Perform warm reset, preserves mem */ +#define SGIMC_CCTRL0_LENDIAN 0x00020000 /* Put MC in little-endian mode */ +#define SGIMC_CCTRL0_WRESETDMEM 0x00040000 /* Warm reset, destroys mem contents */ +#define SGIMC_CCTRL0_CMEMBADPAR 0x02000000 /* Generate bad perr from cpu to mem */ +#define SGIMC_CCTRL0_R4KNOCHKPARR 0x04000000 /* Don't chk parity on mem data reads */ +#define SGIMC_CCTRL0_GIOBTOB 0x08000000 /* Allow GIO back to back writes */ + u32 _unused1; + volatile u32 cpuctrl1; /* CPU control register 1, readwrite */ +#define SGIMC_CCTRL1_EGIOTIMEO 0x00000010 /* GIO bus timeout enable */ +#define SGIMC_CCTRL1_FIXEDEHPC 0x00001000 /* Fixed HPC endianness */ +#define SGIMC_CCTRL1_LITTLEHPC 0x00002000 /* Little endian HPC */ +#define SGIMC_CCTRL1_FIXEDEEXP0 0x00004000 /* Fixed EXP0 endianness */ +#define SGIMC_CCTRL1_LITTLEEXP0 0x00008000 /* Little endian EXP0 */ +#define SGIMC_CCTRL1_FIXEDEEXP1 0x00010000 /* Fixed EXP1 endianness */ +#define SGIMC_CCTRL1_LITTLEEXP1 0x00020000 /* Little endian EXP1 */ + + u32 _unused2; + volatile u32 watchdogt; /* Watchdog reg rdonly, write clears */ + + u32 _unused3; + volatile u32 systemid; /* MC system ID register, readonly */ +#define SGIMC_SYSID_MASKREV 0x0000000f /* Revision of MC controller */ +#define SGIMC_SYSID_EPRESENT 0x00000010 /* Indicates presence of EISA bus */ + + u32 _unused4[3]; + volatile u32 divider; /* Divider reg for RPSS */ + + u32 _unused5; + volatile u32 eeprom; /* EEPROM byte reg for r4k */ +#define SGIMC_EEPROM_PRE 0x00000001 /* eeprom chip PRE pin assertion */ +#define SGIMC_EEPROM_CSEL 0x00000002 /* Active high, eeprom chip select */ +#define SGIMC_EEPROM_SECLOCK 0x00000004 /* EEPROM serial clock */ +#define SGIMC_EEPROM_SDATAO 0x00000008 /* Serial EEPROM data-out */ +#define SGIMC_EEPROM_SDATAI 0x00000010 /* Serial EEPROM data-in */ + + u32 _unused6[3]; + volatile u32 rcntpre; /* Preload refresh counter */ + + u32 _unused7; + volatile u32 rcounter; /* Readonly refresh counter */ + + u32 _unused8[13]; + volatile u32 giopar; /* Parameter word for GIO64 */ +#define SGIMC_GIOPAR_HPC64 0x00000001 /* HPC talks to GIO using 64-bits */ +#define SGIMC_GIOPAR_GFX64 0x00000002 /* GFX talks to GIO using 64-bits */ +#define SGIMC_GIOPAR_EXP064 0x00000004 /* EXP(slot0) talks using 64-bits */ +#define SGIMC_GIOPAR_EXP164 0x00000008 /* EXP(slot1) talks using 64-bits */ +#define SGIMC_GIOPAR_EISA64 0x00000010 /* EISA bus talks 64-bits to GIO */ +#define SGIMC_GIOPAR_HPC264 0x00000020 /* 2nd HPX talks 64-bits to GIO */ +#define SGIMC_GIOPAR_RTIMEGFX 0x00000040 /* GFX device has realtime attr */ +#define SGIMC_GIOPAR_RTIMEEXP0 0x00000080 /* EXP(slot0) has realtime attr */ +#define SGIMC_GIOPAR_RTIMEEXP1 0x00000100 /* EXP(slot1) has realtime attr */ +#define SGIMC_GIOPAR_MASTEREISA 0x00000200 /* EISA bus can act as bus master */ +#define SGIMC_GIOPAR_ONEBUS 0x00000400 /* Exists one GIO64 pipelined bus */ +#define SGIMC_GIOPAR_MASTERGFX 0x00000800 /* GFX can act as a bus master */ +#define SGIMC_GIOPAR_MASTEREXP0 0x00001000 /* EXP(slot0) can bus master */ +#define SGIMC_GIOPAR_MASTEREXP1 0x00002000 /* EXP(slot1) can bus master */ +#define SGIMC_GIOPAR_PLINEEXP0 0x00004000 /* EXP(slot0) has pipeline attr */ +#define SGIMC_GIOPAR_PLINEEXP1 0x00008000 /* EXP(slot1) has pipeline attr */ + + u32 _unused9; + volatile u32 cputp; /* CPU bus arb time period */ + + u32 _unused10[3]; + volatile u32 lbursttp; /* Time period for long bursts */ + + /* MC chip can drive up to 4 bank 4 SIMMs each. All SIMMs in bank must + * be the same size. The size encoding for supported SIMMs is bellow */ + u32 _unused11[9]; + volatile u32 mconfig0; /* Memory config register zero */ + u32 _unused12; + volatile u32 mconfig1; /* Memory config register one */ +#define SGIMC_MCONFIG_BASEADDR 0x000000ff /* Base address of bank*/ +#define SGIMC_MCONFIG_RMASK 0x00001f00 /* Ram config bitmask */ +#define SGIMC_MCONFIG_BVALID 0x00002000 /* Bank is valid */ +#define SGIMC_MCONFIG_SBANKS 0x00004000 /* Number of subbanks */ + + u32 _unused13; + volatile u32 cmacc; /* Mem access config for CPU */ + u32 _unused14; + volatile u32 gmacc; /* Mem access config for GIO */ + + /* This define applies to both cmacc and gmacc registers above. */ +#define SGIMC_MACC_ALIASBIG 0x20000000 /* 512MB home for alias */ + + /* Error address/status regs from GIO and CPU perspectives. */ + u32 _unused15; + volatile u32 cerr; /* Error address reg for CPU */ + u32 _unused16; + volatile u32 cstat; /* Status reg for CPU */ +#define SGIMC_CSTAT_RD 0x00000100 /* read parity error */ +#define SGIMC_CSTAT_PAR 0x00000200 /* CPU parity error */ +#define SGIMC_CSTAT_ADDR 0x00000400 /* memory bus error bad addr */ +#define SGIMC_CSTAT_SYSAD_PAR 0x00000800 /* sysad parity error */ +#define SGIMC_CSTAT_SYSCMD_PAR 0x00001000 /* syscmd parity error */ +#define SGIMC_CSTAT_BAD_DATA 0x00002000 /* bad data identifier */ +#define SGIMC_CSTAT_PAR_MASK 0x00001f00 /* parity error mask */ +#define SGIMC_CSTAT_RD_PAR (SGIMC_CSTAT_RD | SGIMC_CSTAT_PAR) + + u32 _unused17; + volatile u32 gerr; /* Error address reg for GIO */ + u32 _unused18; + volatile u32 gstat; /* Status reg for GIO */ +#define SGIMC_GSTAT_RD 0x00000100 /* read parity error */ +#define SGIMC_GSTAT_WR 0x00000200 /* write parity error */ +#define SGIMC_GSTAT_TIME 0x00000400 /* GIO bus timed out */ +#define SGIMC_GSTAT_PROM 0x00000800 /* write to PROM when PROM_EN not set */ +#define SGIMC_GSTAT_ADDR 0x00001000 /* parity error on addr cycle */ +#define SGIMC_GSTAT_BC 0x00002000 /* parity error on byte count cycle */ +#define SGIMC_GSTAT_PIO_RD 0x00004000 /* read data parity on pio */ +#define SGIMC_GSTAT_PIO_WR 0x00008000 /* write data parity on pio */ + + /* Special hard bus locking registers. */ + u32 _unused19; + volatile u32 syssembit; /* Uni-bit system semaphore */ + u32 _unused20; + volatile u32 mlock; /* Global GIO memory access lock */ + u32 _unused21; + volatile u32 elock; /* Locks EISA from GIO accesses */ + + /* GIO dma control registers. */ + u32 _unused22[15]; + volatile u32 gio_dma_trans; /* DMA mask to translation GIO addrs */ + u32 _unused23; + volatile u32 gio_dma_sbits; /* DMA GIO addr substitution bits */ + u32 _unused24; + volatile u32 dma_intr_cause; /* DMA IRQ cause indicator bits */ + u32 _unused25; + volatile u32 dma_ctrl; /* Main DMA control reg */ + + /* DMA TLB entry 0 */ + u32 _unused26[5]; + volatile u32 dtlb_hi0; + u32 _unused27; + volatile u32 dtlb_lo0; + + /* DMA TLB entry 1 */ + u32 _unused28; + volatile u32 dtlb_hi1; + u32 _unused29; + volatile u32 dtlb_lo1; + + /* DMA TLB entry 2 */ + u32 _unused30; + volatile u32 dtlb_hi2; + u32 _unused31; + volatile u32 dtlb_lo2; + + /* DMA TLB entry 3 */ + u32 _unused32; + volatile u32 dtlb_hi3; + u32 _unused33; + volatile u32 dtlb_lo3; + + u32 _unused34[0x0392]; + + u32 _unused35; + volatile u32 rpsscounter; /* Chirps at 100ns */ + + u32 _unused36[0x1000/4-2*4]; + + u32 _unused37; + volatile u32 maddronly; /* Address DMA goes at */ + u32 _unused38; + volatile u32 maddrpdeflts; /* Same as above, plus set defaults */ + u32 _unused39; + volatile u32 dmasz; /* DMA count */ + u32 _unused40; + volatile u32 ssize; /* DMA stride size */ + u32 _unused41; + volatile u32 gmaddronly; /* Set GIO DMA but don't start trans */ + u32 _unused42; + volatile u32 dmaddnpgo; /* Set GIO DMA addr + start transfer */ + u32 _unused43; + volatile u32 dmamode; /* DMA mode config bit settings */ + u32 _unused44; + volatile u32 dmaccount; /* Zoom and byte count for DMA */ + u32 _unused45; + volatile u32 dmastart; /* Pedal to the metal. */ + u32 _unused46; + volatile u32 dmarunning; /* DMA op is in progress */ + u32 _unused47; + volatile u32 maddrdefstart; /* Set dma addr, defaults, and kick it */ +}; + +extern struct sgimc_regs *sgimc; +#define SGIMC_BASE 0x1fa00000 /* physical */ + +/* Base location of the two ram banks found in IP2[0268] machines. */ +#define SGIMC_SEG0_BADDR 0x08000000 +#define SGIMC_SEG1_BADDR 0x20000000 + +/* Maximum size of the above banks are per machine. */ +#define SGIMC_SEG0_SIZE_ALL 0x10000000 /* 256MB */ +#define SGIMC_SEG1_SIZE_IP20_IP22 0x08000000 /* 128MB */ +#define SGIMC_SEG1_SIZE_IP26_IP28 0x20000000 /* 512MB */ + +extern void sgimc_init(void); + +#endif /* _SGI_MC_H */ diff --git a/include/asm-mips/sgi/pi1.h b/include/asm-mips/sgi/pi1.h new file mode 100644 index 00000000000..c9506915dc5 --- /dev/null +++ b/include/asm-mips/sgi/pi1.h @@ -0,0 +1,71 @@ +/* + * pi1.h: Definitions for SGI PI1 parallel port + */ + +#ifndef _SGI_PI1_H +#define _SGI_PI1_H + +struct pi1_regs { + u8 _data[3]; + volatile u8 data; + u8 _ctrl[3]; + volatile u8 ctrl; +#define PI1_CTRL_STROBE_N 0x01 +#define PI1_CTRL_AFD_N 0x02 +#define PI1_CTRL_INIT_N 0x04 +#define PI1_CTRL_SLIN_N 0x08 +#define PI1_CTRL_IRQ_ENA 0x10 +#define PI1_CTRL_DIR 0x20 +#define PI1_CTRL_SEL 0x40 + u8 _status[3]; + volatile u8 status; +#define PI1_STAT_DEVID 0x03 /* bits 0-1 */ +#define PI1_STAT_NOINK 0x04 /* SGI MODE only */ +#define PI1_STAT_ERROR 0x08 +#define PI1_STAT_ONLINE 0x10 +#define PI1_STAT_PE 0x20 +#define PI1_STAT_ACK 0x40 +#define PI1_STAT_BUSY 0x80 + u8 _dmactrl[3]; + volatile u8 dmactrl; +#define PI1_DMACTRL_FIFO_EMPTY 0x01 /* fifo empty R/O */ +#define PI1_DMACTRL_ABORT 0x02 /* reset DMA and internal fifo W/O */ +#define PI1_DMACTRL_STDMODE 0x00 /* bits 2-3 */ +#define PI1_DMACTRL_SGIMODE 0x04 /* bits 2-3 */ +#define PI1_DMACTRL_RICOHMODE 0x08 /* bits 2-3 */ +#define PI1_DMACTRL_HPMODE 0x0c /* bits 2-3 */ +#define PI1_DMACTRL_BLKMODE 0x10 /* block mode */ +#define PI1_DMACTRL_FIFO_CLEAR 0x20 /* clear fifo W/O */ +#define PI1_DMACTRL_READ 0x40 /* read */ +#define PI1_DMACTRL_RUN 0x80 /* pedal to the metal */ + u8 _intstat[3]; + volatile u8 intstat; +#define PI1_INTSTAT_ACK 0x04 +#define PI1_INTSTAT_FEMPTY 0x08 +#define PI1_INTSTAT_NOINK 0x10 +#define PI1_INTSTAT_ONLINE 0x20 +#define PI1_INTSTAT_ERR 0x40 +#define PI1_INTSTAT_PE 0x80 + u8 _intmask[3]; + volatile u8 intmask; /* enabled low, reset high*/ +#define PI1_INTMASK_ACK 0x04 +#define PI1_INTMASK_FIFO_EMPTY 0x08 +#define PI1_INTMASK_NOINK 0x10 +#define PI1_INTMASK_ONLINE 0x20 +#define PI1_INTMASK_ERR 0x40 +#define PI1_INTMASK_PE 0x80 + u8 _timer1[3]; + volatile u8 timer1; +#define PI1_TIME1 0x27 + u8 _timer2[3]; + volatile u8 timer2; +#define PI1_TIME2 0x13 + u8 _timer3[3]; + volatile u8 timer3; +#define PI1_TIME3 0x10 + u8 _timer4[3]; + volatile u8 timer4; +#define PI1_TIME4 0x00 +}; + +#endif diff --git a/include/asm-mips/sgi/sgi.h b/include/asm-mips/sgi/sgi.h new file mode 100644 index 00000000000..645cea7c0f8 --- /dev/null +++ b/include/asm-mips/sgi/sgi.h @@ -0,0 +1,47 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * sgi.h: Definitions specific to SGI machines. + * + * Copyright (C) 1996 David S. Miller (dm@sgi.com) + */ +#ifndef _ASM_SGI_SGI_H +#define _ASM_SGI_SGI_H + +/* UP=UniProcessor MP=MultiProcessor(capable) */ +enum sgi_mach { + ip4, /* R2k UP */ + ip5, /* R2k MP */ + ip6, /* R3k UP */ + ip7, /* R3k MP */ + ip9, /* R3k UP */ + ip12, /* R3kA UP, Indigo */ + ip15, /* R3kA MP */ + ip17, /* R4K UP */ + ip19, /* R4K MP */ + ip20, /* R4K UP, Indigo */ + ip21, /* TFP MP */ + ip22, /* R4x00 UP, Indigo2 */ + ip25, /* R10k MP */ + ip26, /* TFP UP, Indigo2 */ + ip27, /* R10k MP, R12k MP, Origin */ + ip28, /* R10k UP, Indigo2 */ + ip30, /* Octane */ + ip32, /* O2 */ +}; + +extern enum sgi_mach sgimach; +extern void sgi_sysinit(void); + +/* Many I/O space registers are byte sized and are contained within + * one byte per word, specifically the MSB, this macro helps out. + */ +#ifdef __MIPSEL__ +#define SGI_MSB(regaddr) (regaddr) +#else +#define SGI_MSB(regaddr) ((regaddr) | 0x3) +#endif + +#endif /* _ASM_SGI_SGI_H */ |