/* * Hardware info about DEC Personal DECStation systems (otherwise known * as maxine or pmax (internal DEC codenames). * * 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. * * Copyright (C) 1995 by Paul M. Antoine, some code and definitions are * by curteousy of Chris Fraser. * * This file is under construction - you were warned! */ #ifndef __ASM_MIPS_PMAX_H #define __ASM_MIPS_PMAX_H /* * The addresses below are virtual address. The mappings are * created on startup via wired entries in the tlb. */ #define PMAX_LOCAL_IO_SPACE 0xe0000000 /* * Motherboard regs (kseg1 addresses) */ #define PMAX_SSR_ADDR 0xbc040100 /* system support reg */ /* * SSR defines */ #define PMAX_SSR_LEDMASK 0x00000001 /* power LED */ /* * REX functions -- these are for the new TURBOchannel style ROMs */ #define REX_PROM_MAGIC 0x30464354 /* passed in a2 */ #define REX_GETBITMAP 0x84 /* get mem bitmap */ #define REX_GETCHAR 0x24 /* getch() */ #define REX_PUTCHAR 0x13 /* putch() */ #define REX_HALT 0x9c /* halt the system */ #define REX_PRINTF 0x30 /* printf() */ #define REX_PUTS 0x2c /* puts() */ #define REX_SLOTADDR 0x6c /* slotaddr */ #ifndef __LANGUAGE_ASSEMBLY__ extern __inline__ void pmax_set_led(unsigned int bits) { volatile unsigned int *led_register = (unsigned int *) PMAX_SSR_ADDR; *led_register = bits & PMAX_SSR_LEDMASK; } /* * Glue code to call the PMAX boot proms. */ extern asmlinkage void pmax_printf(const char *); #endif /* * These are just hacked out of the JAZZ ones, no ideas really. */ #define PMAX_KEYBOARD_ADDRESS 0xe0005000 #define PMAX_KEYBOARD_DATA 0xe0005000 #define PMAX_KEYBOARD_COMMAND 0xe0005001 #ifndef __LANGUAGE_ASSEMBLY__ typedef struct { unsigned char data; unsigned char command; } pmax_keyboard_hardware; typedef struct { unsigned char pad0[3]; unsigned char data; unsigned char pad1[3]; unsigned char command; } mips_keyboard_hardware; /* * For now. */ #define keyboard_hardware pmax_keyboard_hardware #endif /* * Serial ports on DEC - maybe! */ #define PMAX_SERIAL1_BASE (unsigned int)0xe0006000 #define PMAX_SERIAL2_BASE (unsigned int)0xe0007000 /* * Dummy Device Address. Used in pmaxdma.c */ #define PMAX_DUMMY_DEVICE 0xe000d000 /* * PMAX timer registers and interrupt no. * Note that the hardware timer interrupt is actually on * cpu level 6, but to keep compatibility with PC stuff * it is remapped to vector 0. See arch/mips/kernel/entry.S. */ #define PMAX_TIMER_INTERVAL 0xe0000228 #define PMAX_TIMER_REGISTER 0xe0000230 /* * DRAM configuration register */ #ifndef __LANGUAGE_ASSEMBLY__ #ifdef __MIPSEL__ typedef struct { unsigned int bank2 : 3; unsigned int bank1 : 3; unsigned int mem_bus_width : 1; unsigned int reserved2 : 1; unsigned int page_mode : 1; unsigned int reserved1 : 23; } dram_configuration; #else /* defined (__MIPSEB__) */ typedef struct { unsigned int reserved1 : 23; unsigned int page_mode : 1; unsigned int reserved2 : 1; unsigned int mem_bus_width : 1; unsigned int bank1 : 3; unsigned int bank2 : 3; } dram_configuration; #endif #endif /* __LANGUAGE_ASSEMBLY__ */ #define PMAX_DRAM_CONFIG 0xe00fffe0 /* * PMAX interrupt control registers */ #define PMAX_IO_IRQ_SOURCE 0xe0100000 #define PMAX_IO_IRQ_ENABLE 0xe0100002 /* * PMAX interrupt enable bits */ #define PMAX_IE_PARALLEL (1 << 0) #define PMAX_IE_FLOPPY (1 << 1) #define PMAX_IE_SOUND (1 << 2) #define PMAX_IE_VIDEO (1 << 3) #define PMAX_IE_ETHERNET (1 << 4) #define PMAX_IE_SCSI (1 << 5) #define PMAX_IE_KEYBOARD (1 << 6) #define PMAX_IE_MOUSE (1 << 7) #define PMAX_IE_SERIAL1 (1 << 8) #define PMAX_IE_SERIAL2 (1 << 9) /* * PMAX Interrupt Level definitions */ #define PMAX_TIMER_IRQ 0 #define PMAX_KEYBOARD_IRQ 1 #define PMAX_ETHERNET_IRQ 2 /* 15 */ #define PMAX_SERIAL1_IRQ 3 #define PMAX_SERIAL2_IRQ 4 #define PMAX_PARALLEL_IRQ 5 #define PMAX_FLOPPY_IRQ 6 /* needs to be consistent with floppy driver! */ /* * PMAX DMA Channels * Note: Channels 4...7 are not used with respect to the Acer PICA-61 * chipset which does not provide these DMA channels. */ #define PMAX_SCSI_DMA 0 /* SCSI */ #define PMAX_FLOPPY_DMA 1 /* FLOPPY */ #define PMAX_AUDIOL_DMA 2 /* AUDIO L */ #define PMAX_AUDIOR_DMA 3 /* AUDIO R */ /* * PMAX R4030 MCT_ADR chip (DMA controller) * Note: Virtual Addresses ! */ #define PMAX_R4030_CONFIG 0xE0000000 /* R4030 config register */ #define PMAX_R4030_REVISION 0xE0000008 /* same as PICA_ASIC_REVISION */ #define PMAX_R4030_INV_ADDR 0xE0000010 /* Invalid Address register */ #define PMAX_R4030_TRSTBL_BASE 0xE0000018 /* Translation Table Base */ #define PMAX_R4030_TRSTBL_LIM 0xE0000020 /* Translation Table Limit */ #define PMAX_R4030_TRSTBL_INV 0xE0000028 /* Translation Table Invalidate */ #define PMAX_R4030_CACHE_MTNC 0xE0000030 /* Cache Maintenance */ #define PMAX_R4030_R_FAIL_ADDR 0xE0000038 /* Remote Failed Address */ #define PMAX_R4030_M_FAIL_ADDR 0xE0000040 /* Memory Failed Adresss */ #define PMAX_R4030_CACHE_PTAG 0xE0000048 /* I/O Cache Physical Tag */ #define PMAX_R4030_CACHE_LTAG 0xE0000050 /* I/O Cache Logical Tag */ #define PMAX_R4030_CACHE_BMASK 0xE0000058 /* I/O Cache Byte Mask */ #define PMAX_R4030_CACHE_BWIN 0xE0000060 /* I/O Cache Buffer Window */ /* * Remote Speed Registers. * * 0: free, 1: Ethernet, 2: SCSI, 3: Floppy, * 4: RTC, 5: Kb./Mouse 6: serial 1, 7: serial 2, * 8: parallel, 9: NVRAM, 10: CPU, 11: PROM, * 12: reserved, 13: free, 14: 7seg LED, 15: ??? */ #define PMAX_R4030_REM_SPEED 0xE0000070 /* 16 Remote Speed Registers */ /* 0xE0000070,78,80... 0xE00000E8 */ #define PMAX_R4030_IRQ_ENABLE 0xE00000E8 /* Internal Interrupt Enable */ #define PMAX_R4030_IRQ_SOURCE 0xE0000200 /* Interrupt Source Reg */ #define PMAX_R4030_I386_ERROR 0xE0000208 /* i386/EISA Bus Error */ /* * Access the R4030 DMA and I/O Controller */ #ifndef __LANGUAGE_ASSEMBLY__ extern inline unsigned short r4030_read_reg16(unsigned addr) { unsigned short ret = *((volatile unsigned short *)addr); __asm__ __volatile__("nop; nop; nop; nop;"); return ret; } extern inline unsigned int r4030_read_reg32(unsigned addr) { unsigned int ret = *((volatile unsigned int *)addr); __asm__ __volatile__("nop; nop; nop; nop;"); return ret; } extern inline void r4030_write_reg16(unsigned addr, unsigned val) { *((volatile unsigned short *)addr) = val; __asm__ __volatile__("nop; nop; nop; nop;"); } extern inline unsigned int r4030_write_reg32(unsigned addr, unsigned val) { *((volatile unsigned int *)addr) = val; __asm__ __volatile__("nop; nop; nop; nop;"); } #endif /* !LANGUAGE_ASSEMBLY__ */ #endif /* __ASM_MIPS_PMAX_H */