| Simon Glass | 4187740 | 2013-03-19 04:58:56 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2011 The Chromium OS Authors. |
| 3 | * |
| Wolfgang Denk | d79de1d | 2013-07-08 09:37:19 +0200 | [diff] [blame^] | 4 | * SPDX-License-Identifier: GPL-2.0+ |
| Simon Glass | 4187740 | 2013-03-19 04:58:56 +0000 | [diff] [blame] | 5 | * |
| 6 | * This file is derived from the flashrom project. |
| 7 | */ |
| 8 | |
| 9 | struct ich7_spi_regs { |
| 10 | uint16_t spis; |
| 11 | uint16_t spic; |
| 12 | uint32_t spia; |
| 13 | uint64_t spid[8]; |
| 14 | uint64_t _pad; |
| 15 | uint32_t bbar; |
| 16 | uint16_t preop; |
| 17 | uint16_t optype; |
| 18 | uint8_t opmenu[8]; |
| 19 | } __packed; |
| 20 | |
| 21 | struct ich9_spi_regs { |
| 22 | uint32_t bfpr; /* 0x00 */ |
| 23 | uint16_t hsfs; |
| 24 | uint16_t hsfc; |
| 25 | uint32_t faddr; |
| 26 | uint32_t _reserved0; |
| 27 | uint32_t fdata[16]; /* 0x10 */ |
| 28 | uint32_t frap; /* 0x50 */ |
| 29 | uint32_t freg[5]; |
| 30 | uint32_t _reserved1[3]; |
| 31 | uint32_t pr[5]; /* 0x74 */ |
| 32 | uint32_t _reserved2[2]; |
| 33 | uint8_t ssfs; /* 0x90 */ |
| 34 | uint8_t ssfc[3]; |
| 35 | uint16_t preop; /* 0x94 */ |
| 36 | uint16_t optype; |
| 37 | uint8_t opmenu[8]; /* 0x98 */ |
| 38 | uint32_t bbar; |
| 39 | uint8_t _reserved3[12]; |
| 40 | uint32_t fdoc; |
| 41 | uint32_t fdod; |
| 42 | uint8_t _reserved4[8]; |
| 43 | uint32_t afc; |
| 44 | uint32_t lvscc; |
| 45 | uint32_t uvscc; |
| 46 | uint8_t _reserved5[4]; |
| 47 | uint32_t fpb; |
| 48 | uint8_t _reserved6[28]; |
| 49 | uint32_t srdl; |
| 50 | uint32_t srdc; |
| 51 | uint32_t srd; |
| 52 | } __packed; |
| 53 | |
| 54 | enum { |
| 55 | SPIS_SCIP = 0x0001, |
| 56 | SPIS_GRANT = 0x0002, |
| 57 | SPIS_CDS = 0x0004, |
| 58 | SPIS_FCERR = 0x0008, |
| 59 | SSFS_AEL = 0x0010, |
| 60 | SPIS_LOCK = 0x8000, |
| 61 | SPIS_RESERVED_MASK = 0x7ff0, |
| 62 | SSFS_RESERVED_MASK = 0x7fe2 |
| 63 | }; |
| 64 | |
| 65 | enum { |
| 66 | SPIC_SCGO = 0x000002, |
| 67 | SPIC_ACS = 0x000004, |
| 68 | SPIC_SPOP = 0x000008, |
| 69 | SPIC_DBC = 0x003f00, |
| 70 | SPIC_DS = 0x004000, |
| 71 | SPIC_SME = 0x008000, |
| 72 | SSFC_SCF_MASK = 0x070000, |
| 73 | SSFC_RESERVED = 0xf80000, |
| 74 | |
| 75 | /* Mask for speed byte, biuts 23:16 of SSFC */ |
| 76 | SSFC_SCF_33MHZ = 0x01, |
| 77 | }; |
| 78 | |
| 79 | enum { |
| 80 | HSFS_FDONE = 0x0001, |
| 81 | HSFS_FCERR = 0x0002, |
| 82 | HSFS_AEL = 0x0004, |
| 83 | HSFS_BERASE_MASK = 0x0018, |
| 84 | HSFS_BERASE_SHIFT = 3, |
| 85 | HSFS_SCIP = 0x0020, |
| 86 | HSFS_FDOPSS = 0x2000, |
| 87 | HSFS_FDV = 0x4000, |
| 88 | HSFS_FLOCKDN = 0x8000 |
| 89 | }; |
| 90 | |
| 91 | enum { |
| 92 | HSFC_FGO = 0x0001, |
| 93 | HSFC_FCYCLE_MASK = 0x0006, |
| 94 | HSFC_FCYCLE_SHIFT = 1, |
| 95 | HSFC_FDBC_MASK = 0x3f00, |
| 96 | HSFC_FDBC_SHIFT = 8, |
| 97 | HSFC_FSMIE = 0x8000 |
| 98 | }; |
| 99 | |
| 100 | enum { |
| 101 | SPI_OPCODE_TYPE_READ_NO_ADDRESS = 0, |
| 102 | SPI_OPCODE_TYPE_WRITE_NO_ADDRESS = 1, |
| 103 | SPI_OPCODE_TYPE_READ_WITH_ADDRESS = 2, |
| 104 | SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS = 3 |
| 105 | }; |
| 106 | |
| 107 | enum { |
| 108 | ICH_MAX_CMD_LEN = 5, |
| 109 | }; |
| 110 | |
| 111 | struct spi_trans { |
| 112 | uint8_t cmd[ICH_MAX_CMD_LEN]; |
| 113 | int cmd_len; |
| 114 | const uint8_t *out; |
| 115 | uint32_t bytesout; |
| 116 | uint8_t *in; |
| 117 | uint32_t bytesin; |
| 118 | uint8_t type; |
| 119 | uint8_t opcode; |
| 120 | uint32_t offset; |
| 121 | }; |
| 122 | |
| 123 | struct ich_spi_slave { |
| 124 | struct spi_slave slave; |
| 125 | struct spi_trans trans; /* current transaction in progress */ |
| 126 | int speed; /* SPI speed in Hz */ |
| 127 | }; |