1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * eisa_eeprom.h - provide support for EISA adapters in PA-RISC machines 4 * 5 * Copyright (c) 2001, 2002 Daniel Engstrom <5116@telia.com> 6 */ 7 8 #ifndef ASM_EISA_EEPROM_H 9 #define ASM_EISA_EEPROM_H 10 11 extern void __iomem *eisa_eeprom_addr; 12 13 #define HPEE_MAX_LENGTH 0x2000 /* maximum eeprom length */ 14 15 #define HPEE_SLOT_INFO(slot) (20+(48*slot)) 16 17 struct eeprom_header 18 { 19 20 u_int32_t num_writes; /* number of writes */ 21 u_int8_t flags; /* flags, usage? */ 22 u_int8_t ver_maj; 23 u_int8_t ver_min; 24 u_int8_t num_slots; /* number of EISA slots in system */ 25 u_int16_t csum; /* checksum, I don't know how to calculate this */ 26 u_int8_t pad[10]; 27 } __attribute__ ((packed)); 28 29 30 struct eeprom_eisa_slot_info 31 { 32 u_int32_t eisa_slot_id; 33 u_int32_t config_data_offset; 34 u_int32_t num_writes; 35 u_int16_t csum; 36 u_int16_t num_functions; 37 u_int16_t config_data_length; 38 39 /* bits 0..3 are the duplicate slot id */ 40 #define HPEE_SLOT_INFO_EMBEDDED 0x10 41 #define HPEE_SLOT_INFO_VIRTUAL 0x20 42 #define HPEE_SLOT_INFO_NO_READID 0x40 43 #define HPEE_SLOT_INFO_DUPLICATE 0x80 44 u_int8_t slot_info; 45 46 #define HPEE_SLOT_FEATURES_ENABLE 0x01 47 #define HPEE_SLOT_FEATURES_IOCHK 0x02 48 #define HPEE_SLOT_FEATURES_CFG_INCOMPLETE 0x80 49 u_int8_t slot_features; 50 51 u_int8_t ver_min; 52 u_int8_t ver_maj; 53 54 #define HPEE_FUNCTION_INFO_HAVE_TYPE 0x01 55 #define HPEE_FUNCTION_INFO_HAVE_MEMORY 0x02 56 #define HPEE_FUNCTION_INFO_HAVE_IRQ 0x04 57 #define HPEE_FUNCTION_INFO_HAVE_DMA 0x08 58 #define HPEE_FUNCTION_INFO_HAVE_PORT 0x10 59 #define HPEE_FUNCTION_INFO_HAVE_PORT_INIT 0x20 60 /* I think there are two slighty different 61 * versions of the function_info field 62 * one int the fixed header and one optional 63 * in the parsed slot data area */ 64 #define HPEE_FUNCTION_INFO_HAVE_FUNCTION 0x01 65 #define HPEE_FUNCTION_INFO_F_DISABLED 0x80 66 #define HPEE_FUNCTION_INFO_CFG_FREE_FORM 0x40 67 u_int8_t function_info; 68 69 #define HPEE_FLAG_BOARD_IS_ISA 0x01 /* flag and minor version for isa board */ 70 u_int8_t flags; 71 u_int8_t pad[24]; 72 } __attribute__ ((packed)); 73 74 75 #define HPEE_MEMORY_MAX_ENT 9 76 /* memory descriptor: byte 0 */ 77 #define HPEE_MEMORY_WRITABLE 0x01 78 #define HPEE_MEMORY_CACHABLE 0x02 79 #define HPEE_MEMORY_TYPE_MASK 0x18 80 #define HPEE_MEMORY_TYPE_SYS 0x00 81 #define HPEE_MEMORY_TYPE_EXP 0x08 82 #define HPEE_MEMORY_TYPE_VIR 0x10 83 #define HPEE_MEMORY_TYPE_OTH 0x18 84 #define HPEE_MEMORY_SHARED 0x20 85 #define HPEE_MEMORY_MORE 0x80 86 87 /* memory descriptor: byte 1 */ 88 #define HPEE_MEMORY_WIDTH_MASK 0x03 89 #define HPEE_MEMORY_WIDTH_BYTE 0x00 90 #define HPEE_MEMORY_WIDTH_WORD 0x01 91 #define HPEE_MEMORY_WIDTH_DWORD 0x02 92 #define HPEE_MEMORY_DECODE_MASK 0x0c 93 #define HPEE_MEMORY_DECODE_20BITS 0x00 94 #define HPEE_MEMORY_DECODE_24BITS 0x04 95 #define HPEE_MEMORY_DECODE_32BITS 0x08 96 /* byte 2 and 3 are a 16bit LE value 97 * containing the memory size in kilobytes */ 98 /* byte 4,5,6 are a 24bit LE value 99 * containing the memory base address */ 100 101 102 #define HPEE_IRQ_MAX_ENT 7 103 /* Interrupt entry: byte 0 */ 104 #define HPEE_IRQ_CHANNEL_MASK 0xf 105 #define HPEE_IRQ_TRIG_LEVEL 0x20 106 #define HPEE_IRQ_MORE 0x80 107 /* byte 1 seems to be unused */ 108 109 #define HPEE_DMA_MAX_ENT 4 110 111 /* dma entry: byte 0 */ 112 #define HPEE_DMA_CHANNEL_MASK 7 113 #define HPEE_DMA_SIZE_MASK 0xc 114 #define HPEE_DMA_SIZE_BYTE 0x0 115 #define HPEE_DMA_SIZE_WORD 0x4 116 #define HPEE_DMA_SIZE_DWORD 0x8 117 #define HPEE_DMA_SHARED 0x40 118 #define HPEE_DMA_MORE 0x80 119 120 /* dma entry: byte 1 */ 121 #define HPEE_DMA_TIMING_MASK 0x30 122 #define HPEE_DMA_TIMING_ISA 0x0 123 #define HPEE_DMA_TIMING_TYPEA 0x10 124 #define HPEE_DMA_TIMING_TYPEB 0x20 125 #define HPEE_DMA_TIMING_TYPEC 0x30 126 127 #define HPEE_PORT_MAX_ENT 20 128 /* port entry byte 0 */ 129 #define HPEE_PORT_SIZE_MASK 0x1f 130 #define HPEE_PORT_SHARED 0x40 131 #define HPEE_PORT_MORE 0x80 132 /* byte 1 and 2 is a 16bit LE value 133 * containing the start port number */ 134 135 #define HPEE_PORT_INIT_MAX_LEN 60 /* in bytes here */ 136 /* port init entry byte 0 */ 137 #define HPEE_PORT_INIT_WIDTH_MASK 0x3 138 #define HPEE_PORT_INIT_WIDTH_BYTE 0x0 139 #define HPEE_PORT_INIT_WIDTH_WORD 0x1 140 #define HPEE_PORT_INIT_WIDTH_DWORD 0x2 141 #define HPEE_PORT_INIT_MASK 0x4 142 #define HPEE_PORT_INIT_MORE 0x80 143 144 #define HPEE_SELECTION_MAX_ENT 26 145 146 #define HPEE_TYPE_MAX_LEN 80 147 148 #endif 149