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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 9b4d65f918dd84a479552b86ef2cde389926738f / . / drivers / spi / ich.h
blob: 1419b23e119a8868c9a2fcde7387c8bcc823b708 [file] [log] [blame]
Simon Glass18530302013-03-19 04:58:56 +0000[diff] [blame]1/*
2 * Copyright (c) 2011 The Chromium OS Authors.
3 *
Wolfgang Denk1a459662013-07-08 09:37:19 +0200[diff] [blame]4 * SPDX-License-Identifier: GPL-2.0+
Simon Glass18530302013-03-19 04:58:56 +0000[diff] [blame]5 *
6 * This file is derived from the flashrom project.
7 */
8
9struct 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
21struct 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];
Simon Glass5093bad2015-01-27 22:13:43 -0700[diff] [blame]40 uint32_t fdoc; /* 0xb0 */
Simon Glass18530302013-03-19 04:58:56 +0000[diff] [blame]41 uint32_t fdod;
42 uint8_t _reserved4[8];
Simon Glass5093bad2015-01-27 22:13:43 -0700[diff] [blame]43 uint32_t afc; /* 0xc0 */
Simon Glass18530302013-03-19 04:58:56 +0000[diff] [blame]44 uint32_t lvscc;
45 uint32_t uvscc;
46 uint8_t _reserved5[4];
Simon Glass5093bad2015-01-27 22:13:43 -0700[diff] [blame]47 uint32_t fpb; /* 0xd0 */
Simon Glass18530302013-03-19 04:58:56 +0000[diff] [blame]48 uint8_t _reserved6[28];
Simon Glass5093bad2015-01-27 22:13:43 -0700[diff] [blame]49 uint32_t srdl; /* 0xf0 */
Simon Glass18530302013-03-19 04:58:56 +0000[diff] [blame]50 uint32_t srdc;
Simon Glass5093bad2015-01-27 22:13:43 -0700[diff] [blame]51 uint32_t scs;
52 uint32_t bcr;
Simon Glass18530302013-03-19 04:58:56 +0000[diff] [blame]53} __packed;
54
55enum {
56 SPIS_SCIP = 0x0001,
57 SPIS_GRANT = 0x0002,
58 SPIS_CDS = 0x0004,
59 SPIS_FCERR = 0x0008,
60 SSFS_AEL = 0x0010,
61 SPIS_LOCK = 0x8000,
62 SPIS_RESERVED_MASK = 0x7ff0,
63 SSFS_RESERVED_MASK = 0x7fe2
64};
65
66enum {
67 SPIC_SCGO = 0x000002,
68 SPIC_ACS = 0x000004,
69 SPIC_SPOP = 0x000008,
70 SPIC_DBC = 0x003f00,
71 SPIC_DS = 0x004000,
72 SPIC_SME = 0x008000,
73 SSFC_SCF_MASK = 0x070000,
74 SSFC_RESERVED = 0xf80000,
75
76 /* Mask for speed byte, biuts 23:16 of SSFC */
77 SSFC_SCF_33MHZ = 0x01,
78};
79
80enum {
81 HSFS_FDONE = 0x0001,
82 HSFS_FCERR = 0x0002,
83 HSFS_AEL = 0x0004,
84 HSFS_BERASE_MASK = 0x0018,
85 HSFS_BERASE_SHIFT = 3,
86 HSFS_SCIP = 0x0020,
87 HSFS_FDOPSS = 0x2000,
88 HSFS_FDV = 0x4000,
89 HSFS_FLOCKDN = 0x8000
90};
91
92enum {
93 HSFC_FGO = 0x0001,
94 HSFC_FCYCLE_MASK = 0x0006,
95 HSFC_FCYCLE_SHIFT = 1,
96 HSFC_FDBC_MASK = 0x3f00,
97 HSFC_FDBC_SHIFT = 8,
98 HSFC_FSMIE = 0x8000
99};
100
101enum {
102 SPI_OPCODE_TYPE_READ_NO_ADDRESS = 0,
103 SPI_OPCODE_TYPE_WRITE_NO_ADDRESS = 1,
104 SPI_OPCODE_TYPE_READ_WITH_ADDRESS = 2,
105 SPI_OPCODE_TYPE_WRITE_WITH_ADDRESS = 3
106};
107
108enum {
109 ICH_MAX_CMD_LEN = 5,
110};
111
112struct spi_trans {
113 uint8_t cmd[ICH_MAX_CMD_LEN];
114 int cmd_len;
115 const uint8_t *out;
116 uint32_t bytesout;
117 uint8_t *in;
118 uint32_t bytesin;
119 uint8_t type;
120 uint8_t opcode;
121 uint32_t offset;
122};
123
124struct ich_spi_slave {
125 struct spi_slave slave;
126 struct spi_trans trans; /* current transaction in progress */
127 int speed; /* SPI speed in Hz */
128};