1/* 2 * eisa_eeprom.h - provide support for EISA adapters in PA-RISC machines 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License 6 * as published by the Free Software Foundation; either version 7 * 2 of the License, or (at your option) any later version. 8 * 9 * Copyright (c) 2001, 2002 Daniel Engstrom <5116@telia.com> 10 * 11 */ 12 13#ifndef ASM_EISA_EEPROM_H 14#define ASM_EISA_EEPROM_H 15 16extern void __iomem *eisa_eeprom_addr; 17 18#define HPEE_MAX_LENGTH 0x2000 /* maximum eeprom length */ 19 20#define HPEE_SLOT_INFO(slot) (20+(48*slot)) 21 22struct eeprom_header 23{ 24 25 u_int32_t num_writes; /* number of writes */ 26 u_int8_t flags; /* flags, usage? */ 27 u_int8_t ver_maj; 28 u_int8_t ver_min; 29 u_int8_t num_slots; /* number of EISA slots in system */ 30 u_int16_t csum; /* checksum, I don't know how to calulate this */ 31 u_int8_t pad[10]; 32} __attribute__ ((packed)); 33 34 35struct eeprom_eisa_slot_info 36{ 37 u_int32_t eisa_slot_id; 38 u_int32_t config_data_offset; 39 u_int32_t num_writes; 40 u_int16_t csum; 41 u_int16_t num_functions; 42 u_int16_t config_data_length; 43 44 /* bits 0..3 are the duplicate slot id */ 45#define HPEE_SLOT_INFO_EMBEDDED 0x10 46#define HPEE_SLOT_INFO_VIRTUAL 0x20 47#define HPEE_SLOT_INFO_NO_READID 0x40 48#define HPEE_SLOT_INFO_DUPLICATE 0x80 49 u_int8_t slot_info; 50 51#define HPEE_SLOT_FEATURES_ENABLE 0x01 52#define HPEE_SLOT_FEATURES_IOCHK 0x02 53#define HPEE_SLOT_FEATURES_CFG_INCOMPLETE 0x80 54 u_int8_t slot_features; 55 56 u_int8_t ver_min; 57 u_int8_t ver_maj; 58 59#define HPEE_FUNCTION_INFO_HAVE_TYPE 0x01 60#define HPEE_FUNCTION_INFO_HAVE_MEMORY 0x02 61#define HPEE_FUNCTION_INFO_HAVE_IRQ 0x04 62#define HPEE_FUNCTION_INFO_HAVE_DMA 0x08 63#define HPEE_FUNCTION_INFO_HAVE_PORT 0x10 64#define HPEE_FUNCTION_INFO_HAVE_PORT_INIT 0x20 65/* I think there are two slighty different 66 * versions of the function_info field 67 * one int the fixed header and one optional 68 * in the parsed slot data area */ 69#define HPEE_FUNCTION_INFO_HAVE_FUNCTION 0x01 70#define HPEE_FUNCTION_INFO_F_DISABLED 0x80 71#define HPEE_FUNCTION_INFO_CFG_FREE_FORM 0x40 72 u_int8_t function_info; 73 74#define HPEE_FLAG_BOARD_IS_ISA 0x01 /* flag and minor version for isa board */ 75 u_int8_t flags; 76 u_int8_t pad[24]; 77} __attribute__ ((packed)); 78 79 80#define HPEE_MEMORY_MAX_ENT 9 81/* memory descriptor: byte 0 */ 82#define HPEE_MEMORY_WRITABLE 0x01 83#define HPEE_MEMORY_CACHABLE 0x02 84#define HPEE_MEMORY_TYPE_MASK 0x18 85#define HPEE_MEMORY_TYPE_SYS 0x00 86#define HPEE_MEMORY_TYPE_EXP 0x08 87#define HPEE_MEMORY_TYPE_VIR 0x10 88#define HPEE_MEMORY_TYPE_OTH 0x18 89#define HPEE_MEMORY_SHARED 0x20 90#define HPEE_MEMORY_MORE 0x80 91 92/* memory descriptor: byte 1 */ 93#define HPEE_MEMORY_WIDTH_MASK 0x03 94#define HPEE_MEMORY_WIDTH_BYTE 0x00 95#define HPEE_MEMORY_WIDTH_WORD 0x01 96#define HPEE_MEMORY_WIDTH_DWORD 0x02 97#define HPEE_MEMORY_DECODE_MASK 0x0c 98#define HPEE_MEMORY_DECODE_20BITS 0x00 99#define HPEE_MEMORY_DECODE_24BITS 0x04 100#define HPEE_MEMORY_DECODE_32BITS 0x08 101/* byte 2 and 3 are a 16bit LE value 102 * containging the memory size in kilobytes */ 103/* byte 4,5,6 are a 24bit LE value 104 * containing the memory base address */ 105 106 107#define HPEE_IRQ_MAX_ENT 7 108/* Interrupt entry: byte 0 */ 109#define HPEE_IRQ_CHANNEL_MASK 0xf 110#define HPEE_IRQ_TRIG_LEVEL 0x20 111#define HPEE_IRQ_MORE 0x80 112/* byte 1 seems to be unused */ 113 114#define HPEE_DMA_MAX_ENT 4 115 116/* dma entry: byte 0 */ 117#define HPEE_DMA_CHANNEL_MASK 7 118#define HPEE_DMA_SIZE_MASK 0xc 119#define HPEE_DMA_SIZE_BYTE 0x0 120#define HPEE_DMA_SIZE_WORD 0x4 121#define HPEE_DMA_SIZE_DWORD 0x8 122#define HPEE_DMA_SHARED 0x40 123#define HPEE_DMA_MORE 0x80 124 125/* dma entry: byte 1 */ 126#define HPEE_DMA_TIMING_MASK 0x30 127#define HPEE_DMA_TIMING_ISA 0x0 128#define HPEE_DMA_TIMING_TYPEA 0x10 129#define HPEE_DMA_TIMING_TYPEB 0x20 130#define HPEE_DMA_TIMING_TYPEC 0x30 131 132#define HPEE_PORT_MAX_ENT 20 133/* port entry byte 0 */ 134#define HPEE_PORT_SIZE_MASK 0x1f 135#define HPEE_PORT_SHARED 0x40 136#define HPEE_PORT_MORE 0x80 137/* byte 1 and 2 is a 16bit LE value 138 * conating the start port number */ 139 140#define HPEE_PORT_INIT_MAX_LEN 60 /* in bytes here */ 141/* port init entry byte 0 */ 142#define HPEE_PORT_INIT_WIDTH_MASK 0x3 143#define HPEE_PORT_INIT_WIDTH_BYTE 0x0 144#define HPEE_PORT_INIT_WIDTH_WORD 0x1 145#define HPEE_PORT_INIT_WIDTH_DWORD 0x2 146#define HPEE_PORT_INIT_MASK 0x4 147#define HPEE_PORT_INIT_MORE 0x80 148 149#define HPEE_SELECTION_MAX_ENT 26 150 151#define HPEE_TYPE_MAX_LEN 80 152 153#endif 154