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1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
2 | /* | |
3 | * Copyright (C) 2018 Oleksij Rempel <linux@rempel-privat.de> | |
4 | * | |
5 | * Driver for Alcor Micro AU6601 and AU6621 controllers | |
6 | */ | |
7 | ||
8 | #ifndef __ALCOR_PCI_H | |
9 | #define __ALCOR_PCI_H | |
10 | ||
11 | #define ALCOR_SD_CARD 0 | |
12 | #define ALCOR_MS_CARD 1 | |
13 | ||
14 | #define DRV_NAME_ALCOR_PCI_SDMMC "alcor_sdmmc" | |
15 | #define DRV_NAME_ALCOR_PCI_MS "alcor_ms" | |
16 | ||
17 | #define PCI_ID_ALCOR_MICRO 0x1AEA | |
18 | #define PCI_ID_AU6601 0x6601 | |
19 | #define PCI_ID_AU6621 0x6621 | |
20 | ||
21 | #define MHZ_TO_HZ(freq) ((freq) * 1000 * 1000) | |
22 | ||
23 | #define AU6601_BASE_CLOCK 31000000 | |
24 | #define AU6601_MIN_CLOCK 150000 | |
25 | #define AU6601_MAX_CLOCK 208000000 | |
c671b6de | 26 | #define AU6601_MAX_DMA_SEGMENTS 64 |
4f556bc0 OR |
27 | #define AU6601_MAX_PIO_SEGMENTS 1 |
28 | #define AU6601_MAX_DMA_BLOCK_SIZE 0x1000 | |
29 | #define AU6601_MAX_PIO_BLOCK_SIZE 0x200 | |
30 | #define AU6601_MAX_DMA_BLOCKS 1 | |
31 | #define AU6601_DMA_LOCAL_SEGMENTS 1 | |
32 | ||
33 | /* registers spotter by reverse engineering but still | |
34 | * with unknown functionality: | |
35 | * 0x10 - ADMA phy address. AU6621 only? | |
36 | * 0x51 - LED ctrl? | |
37 | * 0x52 - unknown | |
38 | * 0x61 - LED related? Always toggled BIT0 | |
39 | * 0x63 - Same as 0x61? | |
40 | * 0x77 - unknown | |
41 | */ | |
42 | ||
43 | /* SDMA phy address. Higher then 0x0800.0000? | |
44 | * The au6601 and au6621 have different DMA engines with different issues. One | |
45 | * For example au6621 engine is triggered by addr change. No other interaction | |
46 | * is needed. This means, if we get two buffers with same address, then engine | |
47 | * will stall. | |
48 | */ | |
49 | #define AU6601_REG_SDMA_ADDR 0x00 | |
50 | #define AU6601_SDMA_MASK 0xffffffff | |
51 | ||
52 | #define AU6601_DMA_BOUNDARY 0x05 | |
53 | #define AU6621_DMA_PAGE_CNT 0x05 | |
54 | /* PIO */ | |
55 | #define AU6601_REG_BUFFER 0x08 | |
56 | /* ADMA ctrl? AU6621 only. */ | |
57 | #define AU6621_DMA_CTRL 0x0c | |
58 | #define AU6621_DMA_ENABLE BIT(0) | |
59 | /* CMD index */ | |
60 | #define AU6601_REG_CMD_OPCODE 0x23 | |
61 | /* CMD parametr */ | |
62 | #define AU6601_REG_CMD_ARG 0x24 | |
63 | /* CMD response 4x4 Bytes */ | |
64 | #define AU6601_REG_CMD_RSP0 0x30 | |
65 | #define AU6601_REG_CMD_RSP1 0x34 | |
66 | #define AU6601_REG_CMD_RSP2 0x38 | |
67 | #define AU6601_REG_CMD_RSP3 0x3C | |
68 | /* default timeout set to 125: 125 * 40ms = 5 sec | |
69 | * how exactly it is calculated? | |
70 | */ | |
71 | #define AU6601_TIME_OUT_CTRL 0x69 | |
72 | /* Block size for SDMA or PIO */ | |
73 | #define AU6601_REG_BLOCK_SIZE 0x6c | |
74 | /* Some power related reg, used together with AU6601_OUTPUT_ENABLE */ | |
75 | #define AU6601_POWER_CONTROL 0x70 | |
76 | ||
77 | /* PLL ctrl */ | |
78 | #define AU6601_CLK_SELECT 0x72 | |
79 | #define AU6601_CLK_OVER_CLK 0x80 | |
80 | #define AU6601_CLK_384_MHZ 0x30 | |
81 | #define AU6601_CLK_125_MHZ 0x20 | |
82 | #define AU6601_CLK_48_MHZ 0x10 | |
83 | #define AU6601_CLK_EXT_PLL 0x04 | |
84 | #define AU6601_CLK_X2_MODE 0x02 | |
85 | #define AU6601_CLK_ENABLE 0x01 | |
86 | #define AU6601_CLK_31_25_MHZ 0x00 | |
87 | ||
88 | #define AU6601_CLK_DIVIDER 0x73 | |
89 | ||
90 | #define AU6601_INTERFACE_MODE_CTRL 0x74 | |
91 | #define AU6601_DLINK_MODE 0x80 | |
92 | #define AU6601_INTERRUPT_DELAY_TIME 0x40 | |
93 | #define AU6601_SIGNAL_REQ_CTRL 0x30 | |
94 | #define AU6601_MS_CARD_WP BIT(3) | |
95 | #define AU6601_SD_CARD_WP BIT(0) | |
96 | ||
97 | /* same register values are used for: | |
98 | * - AU6601_OUTPUT_ENABLE | |
99 | * - AU6601_POWER_CONTROL | |
100 | */ | |
101 | #define AU6601_ACTIVE_CTRL 0x75 | |
102 | #define AU6601_XD_CARD BIT(4) | |
103 | /* AU6601_MS_CARD_ACTIVE - will cativate MS card section? */ | |
104 | #define AU6601_MS_CARD BIT(3) | |
105 | #define AU6601_SD_CARD BIT(0) | |
106 | ||
107 | /* card slot state. It should automatically detect type of | |
108 | * the card | |
109 | */ | |
110 | #define AU6601_DETECT_STATUS 0x76 | |
111 | #define AU6601_DETECT_EN BIT(7) | |
112 | #define AU6601_MS_DETECTED BIT(3) | |
113 | #define AU6601_SD_DETECTED BIT(0) | |
114 | #define AU6601_DETECT_STATUS_M 0xf | |
115 | ||
116 | #define AU6601_REG_SW_RESET 0x79 | |
117 | #define AU6601_BUF_CTRL_RESET BIT(7) | |
118 | #define AU6601_RESET_DATA BIT(3) | |
119 | #define AU6601_RESET_CMD BIT(0) | |
120 | ||
121 | #define AU6601_OUTPUT_ENABLE 0x7a | |
122 | ||
123 | #define AU6601_PAD_DRIVE0 0x7b | |
124 | #define AU6601_PAD_DRIVE1 0x7c | |
125 | #define AU6601_PAD_DRIVE2 0x7d | |
126 | /* read EEPROM? */ | |
127 | #define AU6601_FUNCTION 0x7f | |
128 | ||
129 | #define AU6601_CMD_XFER_CTRL 0x81 | |
130 | #define AU6601_CMD_17_BYTE_CRC 0xc0 | |
131 | #define AU6601_CMD_6_BYTE_WO_CRC 0x80 | |
132 | #define AU6601_CMD_6_BYTE_CRC 0x40 | |
133 | #define AU6601_CMD_START_XFER 0x20 | |
134 | #define AU6601_CMD_STOP_WAIT_RDY 0x10 | |
135 | #define AU6601_CMD_NO_RESP 0x00 | |
136 | ||
137 | #define AU6601_REG_BUS_CTRL 0x82 | |
138 | #define AU6601_BUS_WIDTH_4BIT 0x20 | |
139 | #define AU6601_BUS_WIDTH_8BIT 0x10 | |
140 | #define AU6601_BUS_WIDTH_1BIT 0x00 | |
141 | ||
142 | #define AU6601_DATA_XFER_CTRL 0x83 | |
143 | #define AU6601_DATA_WRITE BIT(7) | |
144 | #define AU6601_DATA_DMA_MODE BIT(6) | |
145 | #define AU6601_DATA_START_XFER BIT(0) | |
146 | ||
147 | #define AU6601_DATA_PIN_STATE 0x84 | |
148 | #define AU6601_BUS_STAT_CMD BIT(15) | |
149 | /* BIT(4) - BIT(7) are permanently 1. | |
150 | * May be reserved or not attached DAT4-DAT7 | |
151 | */ | |
152 | #define AU6601_BUS_STAT_DAT3 BIT(3) | |
153 | #define AU6601_BUS_STAT_DAT2 BIT(2) | |
154 | #define AU6601_BUS_STAT_DAT1 BIT(1) | |
155 | #define AU6601_BUS_STAT_DAT0 BIT(0) | |
156 | #define AU6601_BUS_STAT_DAT_MASK 0xf | |
157 | ||
158 | #define AU6601_OPT 0x85 | |
159 | #define AU6601_OPT_CMD_LINE_LEVEL 0x80 | |
160 | #define AU6601_OPT_NCRC_16_CLK BIT(4) | |
161 | #define AU6601_OPT_CMD_NWT BIT(3) | |
162 | #define AU6601_OPT_STOP_CLK BIT(2) | |
163 | #define AU6601_OPT_DDR_MODE BIT(1) | |
164 | #define AU6601_OPT_SD_18V BIT(0) | |
165 | ||
166 | #define AU6601_CLK_DELAY 0x86 | |
167 | #define AU6601_CLK_DATA_POSITIVE_EDGE 0x80 | |
168 | #define AU6601_CLK_CMD_POSITIVE_EDGE 0x40 | |
169 | #define AU6601_CLK_POSITIVE_EDGE_ALL (AU6601_CLK_CMD_POSITIVE_EDGE \ | |
170 | | AU6601_CLK_DATA_POSITIVE_EDGE) | |
171 | ||
172 | ||
173 | #define AU6601_REG_INT_STATUS 0x90 | |
174 | #define AU6601_REG_INT_ENABLE 0x94 | |
175 | #define AU6601_INT_DATA_END_BIT_ERR BIT(22) | |
176 | #define AU6601_INT_DATA_CRC_ERR BIT(21) | |
177 | #define AU6601_INT_DATA_TIMEOUT_ERR BIT(20) | |
178 | #define AU6601_INT_CMD_INDEX_ERR BIT(19) | |
179 | #define AU6601_INT_CMD_END_BIT_ERR BIT(18) | |
180 | #define AU6601_INT_CMD_CRC_ERR BIT(17) | |
181 | #define AU6601_INT_CMD_TIMEOUT_ERR BIT(16) | |
182 | #define AU6601_INT_ERROR BIT(15) | |
183 | #define AU6601_INT_OVER_CURRENT_ERR BIT(8) | |
184 | #define AU6601_INT_CARD_INSERT BIT(7) | |
185 | #define AU6601_INT_CARD_REMOVE BIT(6) | |
186 | #define AU6601_INT_READ_BUF_RDY BIT(5) | |
187 | #define AU6601_INT_WRITE_BUF_RDY BIT(4) | |
188 | #define AU6601_INT_DMA_END BIT(3) | |
189 | #define AU6601_INT_DATA_END BIT(1) | |
190 | #define AU6601_INT_CMD_END BIT(0) | |
191 | ||
192 | #define AU6601_INT_NORMAL_MASK 0x00007FFF | |
193 | #define AU6601_INT_ERROR_MASK 0xFFFF8000 | |
194 | ||
195 | #define AU6601_INT_CMD_MASK (AU6601_INT_CMD_END | \ | |
196 | AU6601_INT_CMD_TIMEOUT_ERR | AU6601_INT_CMD_CRC_ERR | \ | |
197 | AU6601_INT_CMD_END_BIT_ERR | AU6601_INT_CMD_INDEX_ERR) | |
198 | #define AU6601_INT_DATA_MASK (AU6601_INT_DATA_END | AU6601_INT_DMA_END | \ | |
199 | AU6601_INT_READ_BUF_RDY | AU6601_INT_WRITE_BUF_RDY | \ | |
200 | AU6601_INT_DATA_TIMEOUT_ERR | AU6601_INT_DATA_CRC_ERR | \ | |
201 | AU6601_INT_DATA_END_BIT_ERR) | |
202 | #define AU6601_INT_ALL_MASK ((u32)-1) | |
203 | ||
204 | /* MS_CARD mode registers */ | |
205 | ||
206 | #define AU6601_MS_STATUS 0xa0 | |
207 | ||
208 | #define AU6601_MS_BUS_MODE_CTRL 0xa1 | |
209 | #define AU6601_MS_BUS_8BIT_MODE 0x03 | |
210 | #define AU6601_MS_BUS_4BIT_MODE 0x01 | |
211 | #define AU6601_MS_BUS_1BIT_MODE 0x00 | |
212 | ||
213 | #define AU6601_MS_TPC_CMD 0xa2 | |
214 | #define AU6601_MS_TPC_READ_PAGE_DATA 0x02 | |
215 | #define AU6601_MS_TPC_READ_REG 0x04 | |
216 | #define AU6601_MS_TPC_GET_INT 0x07 | |
217 | #define AU6601_MS_TPC_WRITE_PAGE_DATA 0x0D | |
218 | #define AU6601_MS_TPC_WRITE_REG 0x0B | |
219 | #define AU6601_MS_TPC_SET_RW_REG_ADRS 0x08 | |
220 | #define AU6601_MS_TPC_SET_CMD 0x0E | |
221 | #define AU6601_MS_TPC_EX_SET_CMD 0x09 | |
222 | #define AU6601_MS_TPC_READ_SHORT_DATA 0x03 | |
223 | #define AU6601_MS_TPC_WRITE_SHORT_DATA 0x0C | |
224 | ||
225 | #define AU6601_MS_TRANSFER_MODE 0xa3 | |
226 | #define AU6601_MS_XFER_INT_TIMEOUT_CHK BIT(2) | |
227 | #define AU6601_MS_XFER_DMA_ENABLE BIT(1) | |
228 | #define AU6601_MS_XFER_START BIT(0) | |
229 | ||
230 | #define AU6601_MS_DATA_PIN_STATE 0xa4 | |
231 | ||
232 | #define AU6601_MS_INT_STATUS 0xb0 | |
233 | #define AU6601_MS_INT_ENABLE 0xb4 | |
234 | #define AU6601_MS_INT_OVER_CURRENT_ERROR BIT(23) | |
235 | #define AU6601_MS_INT_DATA_CRC_ERROR BIT(21) | |
236 | #define AU6601_MS_INT_INT_TIMEOUT BIT(20) | |
237 | #define AU6601_MS_INT_INT_RESP_ERROR BIT(19) | |
238 | #define AU6601_MS_INT_CED_ERROR BIT(18) | |
239 | #define AU6601_MS_INT_TPC_TIMEOUT BIT(16) | |
240 | #define AU6601_MS_INT_ERROR BIT(15) | |
241 | #define AU6601_MS_INT_CARD_INSERT BIT(7) | |
242 | #define AU6601_MS_INT_CARD_REMOVE BIT(6) | |
243 | #define AU6601_MS_INT_BUF_READ_RDY BIT(5) | |
244 | #define AU6601_MS_INT_BUF_WRITE_RDY BIT(4) | |
245 | #define AU6601_MS_INT_DMA_END BIT(3) | |
246 | #define AU6601_MS_INT_TPC_END BIT(1) | |
247 | ||
248 | #define AU6601_MS_INT_DATA_MASK 0x00000038 | |
249 | #define AU6601_MS_INT_TPC_MASK 0x003d8002 | |
250 | #define AU6601_MS_INT_TPC_ERROR 0x003d0000 | |
251 | ||
252 | #define ALCOR_PCIE_LINK_CTRL_OFFSET 0x10 | |
253 | #define ALCOR_PCIE_LINK_CAP_OFFSET 0x0c | |
254 | #define ALCOR_CAP_START_OFFSET 0x34 | |
255 | ||
256 | struct alcor_dev_cfg { | |
257 | u8 dma; | |
258 | }; | |
259 | ||
260 | struct alcor_pci_priv { | |
261 | struct pci_dev *pdev; | |
262 | struct pci_dev *parent_pdev; | |
263 | struct device *dev; | |
264 | void __iomem *iobase; | |
265 | unsigned int irq; | |
266 | ||
267 | unsigned long id; /* idr id */ | |
268 | ||
269 | struct alcor_dev_cfg *cfg; | |
270 | ||
271 | /* PCI ASPM related vars */ | |
272 | int pdev_cap_off; | |
273 | u8 pdev_aspm_cap; | |
274 | int parent_cap_off; | |
275 | u8 parent_aspm_cap; | |
276 | u8 ext_config_dev_aspm; | |
277 | }; | |
278 | ||
279 | void alcor_write8(struct alcor_pci_priv *priv, u8 val, unsigned int addr); | |
280 | void alcor_write16(struct alcor_pci_priv *priv, u16 val, unsigned int addr); | |
281 | void alcor_write32(struct alcor_pci_priv *priv, u32 val, unsigned int addr); | |
282 | void alcor_write32be(struct alcor_pci_priv *priv, u32 val, unsigned int addr); | |
283 | u8 alcor_read8(struct alcor_pci_priv *priv, unsigned int addr); | |
284 | u32 alcor_read32(struct alcor_pci_priv *priv, unsigned int addr); | |
285 | u32 alcor_read32be(struct alcor_pci_priv *priv, unsigned int addr); | |
286 | #endif |