1 /*
2  * Copyright (c) 2015 Linaro Ltd.
3  * Copyright (c) 2015 Hisilicon Limited.
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  */
11 
12 #include "hisi_sas.h"
13 #define DRV_NAME "hisi_sas_v1_hw"
14 
15 /* global registers need init*/
16 #define DLVRY_QUEUE_ENABLE		0x0
17 #define IOST_BASE_ADDR_LO		0x8
18 #define IOST_BASE_ADDR_HI		0xc
19 #define ITCT_BASE_ADDR_LO		0x10
20 #define ITCT_BASE_ADDR_HI		0x14
21 #define BROKEN_MSG_ADDR_LO		0x18
22 #define BROKEN_MSG_ADDR_HI		0x1c
23 #define PHY_CONTEXT			0x20
24 #define PHY_STATE			0x24
25 #define PHY_PORT_NUM_MA			0x28
26 #define PORT_STATE			0x2c
27 #define PHY_CONN_RATE			0x30
28 #define HGC_TRANS_TASK_CNT_LIMIT	0x38
29 #define AXI_AHB_CLK_CFG			0x3c
30 #define HGC_SAS_TXFAIL_RETRY_CTRL	0x84
31 #define HGC_GET_ITV_TIME		0x90
32 #define DEVICE_MSG_WORK_MODE		0x94
33 #define I_T_NEXUS_LOSS_TIME		0xa0
34 #define BUS_INACTIVE_LIMIT_TIME		0xa8
35 #define REJECT_TO_OPEN_LIMIT_TIME	0xac
36 #define CFG_AGING_TIME			0xbc
37 #define CFG_AGING_TIME_ITCT_REL_OFF	0
38 #define CFG_AGING_TIME_ITCT_REL_MSK	(0x1 << CFG_AGING_TIME_ITCT_REL_OFF)
39 #define HGC_DFX_CFG2			0xc0
40 #define FIS_LIST_BADDR_L		0xc4
41 #define CFG_1US_TIMER_TRSH		0xcc
42 #define CFG_SAS_CONFIG			0xd4
43 #define HGC_IOST_ECC_ADDR		0x140
44 #define HGC_IOST_ECC_ADDR_BAD_OFF	16
45 #define HGC_IOST_ECC_ADDR_BAD_MSK	(0x3ff << HGC_IOST_ECC_ADDR_BAD_OFF)
46 #define HGC_DQ_ECC_ADDR			0x144
47 #define HGC_DQ_ECC_ADDR_BAD_OFF		16
48 #define HGC_DQ_ECC_ADDR_BAD_MSK		(0xfff << HGC_DQ_ECC_ADDR_BAD_OFF)
49 #define HGC_INVLD_DQE_INFO		0x148
50 #define HGC_INVLD_DQE_INFO_DQ_OFF	0
51 #define HGC_INVLD_DQE_INFO_DQ_MSK	(0xffff << HGC_INVLD_DQE_INFO_DQ_OFF)
52 #define HGC_INVLD_DQE_INFO_TYPE_OFF	16
53 #define HGC_INVLD_DQE_INFO_TYPE_MSK	(0x1 << HGC_INVLD_DQE_INFO_TYPE_OFF)
54 #define HGC_INVLD_DQE_INFO_FORCE_OFF	17
55 #define HGC_INVLD_DQE_INFO_FORCE_MSK	(0x1 << HGC_INVLD_DQE_INFO_FORCE_OFF)
56 #define HGC_INVLD_DQE_INFO_PHY_OFF	18
57 #define HGC_INVLD_DQE_INFO_PHY_MSK	(0x1 << HGC_INVLD_DQE_INFO_PHY_OFF)
58 #define HGC_INVLD_DQE_INFO_ABORT_OFF	19
59 #define HGC_INVLD_DQE_INFO_ABORT_MSK	(0x1 << HGC_INVLD_DQE_INFO_ABORT_OFF)
60 #define HGC_INVLD_DQE_INFO_IPTT_OF_OFF	20
61 #define HGC_INVLD_DQE_INFO_IPTT_OF_MSK	(0x1 << HGC_INVLD_DQE_INFO_IPTT_OF_OFF)
62 #define HGC_INVLD_DQE_INFO_SSP_ERR_OFF	21
63 #define HGC_INVLD_DQE_INFO_SSP_ERR_MSK	(0x1 << HGC_INVLD_DQE_INFO_SSP_ERR_OFF)
64 #define HGC_INVLD_DQE_INFO_OFL_OFF	22
65 #define HGC_INVLD_DQE_INFO_OFL_MSK	(0x1 << HGC_INVLD_DQE_INFO_OFL_OFF)
66 #define HGC_ITCT_ECC_ADDR		0x150
67 #define HGC_ITCT_ECC_ADDR_BAD_OFF	16
68 #define HGC_ITCT_ECC_ADDR_BAD_MSK	(0x3ff << HGC_ITCT_ECC_ADDR_BAD_OFF)
69 #define HGC_AXI_FIFO_ERR_INFO		0x154
70 #define INT_COAL_EN			0x1bc
71 #define OQ_INT_COAL_TIME		0x1c0
72 #define OQ_INT_COAL_CNT			0x1c4
73 #define ENT_INT_COAL_TIME		0x1c8
74 #define ENT_INT_COAL_CNT		0x1cc
75 #define OQ_INT_SRC			0x1d0
76 #define OQ_INT_SRC_MSK			0x1d4
77 #define ENT_INT_SRC1			0x1d8
78 #define ENT_INT_SRC2			0x1dc
79 #define ENT_INT_SRC2_DQ_CFG_ERR_OFF	25
80 #define ENT_INT_SRC2_DQ_CFG_ERR_MSK	(0x1 << ENT_INT_SRC2_DQ_CFG_ERR_OFF)
81 #define ENT_INT_SRC2_CQ_CFG_ERR_OFF	27
82 #define ENT_INT_SRC2_CQ_CFG_ERR_MSK	(0x1 << ENT_INT_SRC2_CQ_CFG_ERR_OFF)
83 #define ENT_INT_SRC2_AXI_WRONG_INT_OFF	28
84 #define ENT_INT_SRC2_AXI_WRONG_INT_MSK	(0x1 << ENT_INT_SRC2_AXI_WRONG_INT_OFF)
85 #define ENT_INT_SRC2_AXI_OVERLF_INT_OFF	29
86 #define ENT_INT_SRC2_AXI_OVERLF_INT_MSK	(0x1 << ENT_INT_SRC2_AXI_OVERLF_INT_OFF)
87 #define ENT_INT_SRC_MSK1		0x1e0
88 #define ENT_INT_SRC_MSK2		0x1e4
89 #define SAS_ECC_INTR			0x1e8
90 #define SAS_ECC_INTR_DQ_ECC1B_OFF	0
91 #define SAS_ECC_INTR_DQ_ECC1B_MSK	(0x1 << SAS_ECC_INTR_DQ_ECC1B_OFF)
92 #define SAS_ECC_INTR_DQ_ECCBAD_OFF	1
93 #define SAS_ECC_INTR_DQ_ECCBAD_MSK	(0x1 << SAS_ECC_INTR_DQ_ECCBAD_OFF)
94 #define SAS_ECC_INTR_IOST_ECC1B_OFF	2
95 #define SAS_ECC_INTR_IOST_ECC1B_MSK	(0x1 << SAS_ECC_INTR_IOST_ECC1B_OFF)
96 #define SAS_ECC_INTR_IOST_ECCBAD_OFF	3
97 #define SAS_ECC_INTR_IOST_ECCBAD_MSK	(0x1 << SAS_ECC_INTR_IOST_ECCBAD_OFF)
98 #define SAS_ECC_INTR_ITCT_ECC1B_OFF	4
99 #define SAS_ECC_INTR_ITCT_ECC1B_MSK	(0x1 << SAS_ECC_INTR_ITCT_ECC1B_OFF)
100 #define SAS_ECC_INTR_ITCT_ECCBAD_OFF	5
101 #define SAS_ECC_INTR_ITCT_ECCBAD_MSK	(0x1 << SAS_ECC_INTR_ITCT_ECCBAD_OFF)
102 #define SAS_ECC_INTR_MSK		0x1ec
103 #define HGC_ERR_STAT_EN			0x238
104 #define DLVRY_Q_0_BASE_ADDR_LO		0x260
105 #define DLVRY_Q_0_BASE_ADDR_HI		0x264
106 #define DLVRY_Q_0_DEPTH			0x268
107 #define DLVRY_Q_0_WR_PTR		0x26c
108 #define DLVRY_Q_0_RD_PTR		0x270
109 #define COMPL_Q_0_BASE_ADDR_LO		0x4e0
110 #define COMPL_Q_0_BASE_ADDR_HI		0x4e4
111 #define COMPL_Q_0_DEPTH			0x4e8
112 #define COMPL_Q_0_WR_PTR		0x4ec
113 #define COMPL_Q_0_RD_PTR		0x4f0
114 #define HGC_ECC_ERR			0x7d0
115 
116 /* phy registers need init */
117 #define PORT_BASE			(0x800)
118 
119 #define PHY_CFG				(PORT_BASE + 0x0)
120 #define PHY_CFG_ENA_OFF			0
121 #define PHY_CFG_ENA_MSK			(0x1 << PHY_CFG_ENA_OFF)
122 #define PHY_CFG_DC_OPT_OFF		2
123 #define PHY_CFG_DC_OPT_MSK		(0x1 << PHY_CFG_DC_OPT_OFF)
124 #define PROG_PHY_LINK_RATE		(PORT_BASE + 0xc)
125 #define PROG_PHY_LINK_RATE_MAX_OFF	0
126 #define PROG_PHY_LINK_RATE_MAX_MSK	(0xf << PROG_PHY_LINK_RATE_MAX_OFF)
127 #define PROG_PHY_LINK_RATE_MIN_OFF	4
128 #define PROG_PHY_LINK_RATE_MIN_MSK	(0xf << PROG_PHY_LINK_RATE_MIN_OFF)
129 #define PROG_PHY_LINK_RATE_OOB_OFF	8
130 #define PROG_PHY_LINK_RATE_OOB_MSK	(0xf << PROG_PHY_LINK_RATE_OOB_OFF)
131 #define PHY_CTRL			(PORT_BASE + 0x14)
132 #define PHY_CTRL_RESET_OFF		0
133 #define PHY_CTRL_RESET_MSK		(0x1 << PHY_CTRL_RESET_OFF)
134 #define PHY_RATE_NEGO			(PORT_BASE + 0x30)
135 #define PHY_PCN				(PORT_BASE + 0x44)
136 #define SL_TOUT_CFG			(PORT_BASE + 0x8c)
137 #define SL_CONTROL			(PORT_BASE + 0x94)
138 #define SL_CONTROL_NOTIFY_EN_OFF	0
139 #define SL_CONTROL_NOTIFY_EN_MSK	(0x1 << SL_CONTROL_NOTIFY_EN_OFF)
140 #define TX_ID_DWORD0			(PORT_BASE + 0x9c)
141 #define TX_ID_DWORD1			(PORT_BASE + 0xa0)
142 #define TX_ID_DWORD2			(PORT_BASE + 0xa4)
143 #define TX_ID_DWORD3			(PORT_BASE + 0xa8)
144 #define TX_ID_DWORD4			(PORT_BASE + 0xaC)
145 #define TX_ID_DWORD5			(PORT_BASE + 0xb0)
146 #define TX_ID_DWORD6			(PORT_BASE + 0xb4)
147 #define RX_IDAF_DWORD0			(PORT_BASE + 0xc4)
148 #define RX_IDAF_DWORD1			(PORT_BASE + 0xc8)
149 #define RX_IDAF_DWORD2			(PORT_BASE + 0xcc)
150 #define RX_IDAF_DWORD3			(PORT_BASE + 0xd0)
151 #define RX_IDAF_DWORD4			(PORT_BASE + 0xd4)
152 #define RX_IDAF_DWORD5			(PORT_BASE + 0xd8)
153 #define RX_IDAF_DWORD6			(PORT_BASE + 0xdc)
154 #define RXOP_CHECK_CFG_H		(PORT_BASE + 0xfc)
155 #define DONE_RECEIVED_TIME		(PORT_BASE + 0x12c)
156 #define CON_CFG_DRIVER			(PORT_BASE + 0x130)
157 #define PHY_CONFIG2			(PORT_BASE + 0x1a8)
158 #define PHY_CONFIG2_FORCE_TXDEEMPH_OFF	3
159 #define PHY_CONFIG2_FORCE_TXDEEMPH_MSK	(0x1 << PHY_CONFIG2_FORCE_TXDEEMPH_OFF)
160 #define PHY_CONFIG2_TX_TRAIN_COMP_OFF	24
161 #define PHY_CONFIG2_TX_TRAIN_COMP_MSK	(0x1 << PHY_CONFIG2_TX_TRAIN_COMP_OFF)
162 #define CHL_INT0			(PORT_BASE + 0x1b0)
163 #define CHL_INT0_PHYCTRL_NOTRDY_OFF	0
164 #define CHL_INT0_PHYCTRL_NOTRDY_MSK	(0x1 << CHL_INT0_PHYCTRL_NOTRDY_OFF)
165 #define CHL_INT0_SN_FAIL_NGR_OFF	2
166 #define CHL_INT0_SN_FAIL_NGR_MSK	(0x1 << CHL_INT0_SN_FAIL_NGR_OFF)
167 #define CHL_INT0_DWS_LOST_OFF		4
168 #define CHL_INT0_DWS_LOST_MSK		(0x1 << CHL_INT0_DWS_LOST_OFF)
169 #define CHL_INT0_SL_IDAF_FAIL_OFF	10
170 #define CHL_INT0_SL_IDAF_FAIL_MSK	(0x1 << CHL_INT0_SL_IDAF_FAIL_OFF)
171 #define CHL_INT0_ID_TIMEOUT_OFF		11
172 #define CHL_INT0_ID_TIMEOUT_MSK		(0x1 << CHL_INT0_ID_TIMEOUT_OFF)
173 #define CHL_INT0_SL_OPAF_FAIL_OFF	12
174 #define CHL_INT0_SL_OPAF_FAIL_MSK	(0x1 << CHL_INT0_SL_OPAF_FAIL_OFF)
175 #define CHL_INT0_SL_PS_FAIL_OFF		21
176 #define CHL_INT0_SL_PS_FAIL_MSK		(0x1 << CHL_INT0_SL_PS_FAIL_OFF)
177 #define CHL_INT1			(PORT_BASE + 0x1b4)
178 #define CHL_INT2			(PORT_BASE + 0x1b8)
179 #define CHL_INT2_SL_RX_BC_ACK_OFF	2
180 #define CHL_INT2_SL_RX_BC_ACK_MSK	(0x1 << CHL_INT2_SL_RX_BC_ACK_OFF)
181 #define CHL_INT2_SL_PHY_ENA_OFF		6
182 #define CHL_INT2_SL_PHY_ENA_MSK		(0x1 << CHL_INT2_SL_PHY_ENA_OFF)
183 #define CHL_INT0_MSK			(PORT_BASE + 0x1bc)
184 #define CHL_INT0_MSK_PHYCTRL_NOTRDY_OFF	0
185 #define CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK	(0x1 << CHL_INT0_MSK_PHYCTRL_NOTRDY_OFF)
186 #define CHL_INT1_MSK			(PORT_BASE + 0x1c0)
187 #define CHL_INT2_MSK			(PORT_BASE + 0x1c4)
188 #define CHL_INT_COAL_EN			(PORT_BASE + 0x1d0)
189 #define DMA_TX_STATUS			(PORT_BASE + 0x2d0)
190 #define DMA_TX_STATUS_BUSY_OFF		0
191 #define DMA_TX_STATUS_BUSY_MSK		(0x1 << DMA_TX_STATUS_BUSY_OFF)
192 #define DMA_RX_STATUS			(PORT_BASE + 0x2e8)
193 #define DMA_RX_STATUS_BUSY_OFF		0
194 #define DMA_RX_STATUS_BUSY_MSK		(0x1 << DMA_RX_STATUS_BUSY_OFF)
195 
196 #define AXI_CFG				0x5100
197 #define RESET_VALUE			0x7ffff
198 
199 /* HW dma structures */
200 /* Delivery queue header */
201 /* dw0 */
202 #define CMD_HDR_RESP_REPORT_OFF		5
203 #define CMD_HDR_RESP_REPORT_MSK		0x20
204 #define CMD_HDR_TLR_CTRL_OFF		6
205 #define CMD_HDR_TLR_CTRL_MSK		0xc0
206 #define CMD_HDR_PORT_OFF		17
207 #define CMD_HDR_PORT_MSK		0xe0000
208 #define CMD_HDR_PRIORITY_OFF		27
209 #define CMD_HDR_PRIORITY_MSK		0x8000000
210 #define CMD_HDR_MODE_OFF		28
211 #define CMD_HDR_MODE_MSK		0x10000000
212 #define CMD_HDR_CMD_OFF			29
213 #define CMD_HDR_CMD_MSK			0xe0000000
214 /* dw1 */
215 #define CMD_HDR_VERIFY_DTL_OFF		10
216 #define CMD_HDR_VERIFY_DTL_MSK		0x400
217 #define CMD_HDR_SSP_FRAME_TYPE_OFF	13
218 #define CMD_HDR_SSP_FRAME_TYPE_MSK	0xe000
219 #define CMD_HDR_DEVICE_ID_OFF		16
220 #define CMD_HDR_DEVICE_ID_MSK		0xffff0000
221 /* dw2 */
222 #define CMD_HDR_CFL_OFF			0
223 #define CMD_HDR_CFL_MSK			0x1ff
224 #define CMD_HDR_MRFL_OFF		15
225 #define CMD_HDR_MRFL_MSK		0xff8000
226 #define CMD_HDR_FIRST_BURST_OFF		25
227 #define CMD_HDR_FIRST_BURST_MSK		0x2000000
228 /* dw3 */
229 #define CMD_HDR_IPTT_OFF		0
230 #define CMD_HDR_IPTT_MSK		0xffff
231 /* dw6 */
232 #define CMD_HDR_DATA_SGL_LEN_OFF	16
233 #define CMD_HDR_DATA_SGL_LEN_MSK	0xffff0000
234 
235 /* Completion header */
236 #define CMPLT_HDR_IPTT_OFF		0
237 #define CMPLT_HDR_IPTT_MSK		(0xffff << CMPLT_HDR_IPTT_OFF)
238 #define CMPLT_HDR_CMD_CMPLT_OFF		17
239 #define CMPLT_HDR_CMD_CMPLT_MSK		(0x1 << CMPLT_HDR_CMD_CMPLT_OFF)
240 #define CMPLT_HDR_ERR_RCRD_XFRD_OFF	18
241 #define CMPLT_HDR_ERR_RCRD_XFRD_MSK	(0x1 << CMPLT_HDR_ERR_RCRD_XFRD_OFF)
242 #define CMPLT_HDR_RSPNS_XFRD_OFF	19
243 #define CMPLT_HDR_RSPNS_XFRD_MSK	(0x1 << CMPLT_HDR_RSPNS_XFRD_OFF)
244 #define CMPLT_HDR_IO_CFG_ERR_OFF	27
245 #define CMPLT_HDR_IO_CFG_ERR_MSK	(0x1 << CMPLT_HDR_IO_CFG_ERR_OFF)
246 
247 /* ITCT header */
248 /* qw0 */
249 #define ITCT_HDR_DEV_TYPE_OFF		0
250 #define ITCT_HDR_DEV_TYPE_MSK		(0x3ULL << ITCT_HDR_DEV_TYPE_OFF)
251 #define ITCT_HDR_VALID_OFF		2
252 #define ITCT_HDR_VALID_MSK		(0x1ULL << ITCT_HDR_VALID_OFF)
253 #define ITCT_HDR_AWT_CONTROL_OFF	4
254 #define ITCT_HDR_AWT_CONTROL_MSK	(0x1ULL << ITCT_HDR_AWT_CONTROL_OFF)
255 #define ITCT_HDR_MAX_CONN_RATE_OFF	5
256 #define ITCT_HDR_MAX_CONN_RATE_MSK	(0xfULL << ITCT_HDR_MAX_CONN_RATE_OFF)
257 #define ITCT_HDR_VALID_LINK_NUM_OFF	9
258 #define ITCT_HDR_VALID_LINK_NUM_MSK	(0xfULL << ITCT_HDR_VALID_LINK_NUM_OFF)
259 #define ITCT_HDR_PORT_ID_OFF		13
260 #define ITCT_HDR_PORT_ID_MSK		(0x7ULL << ITCT_HDR_PORT_ID_OFF)
261 #define ITCT_HDR_SMP_TIMEOUT_OFF	16
262 #define ITCT_HDR_SMP_TIMEOUT_MSK	(0xffffULL << ITCT_HDR_SMP_TIMEOUT_OFF)
263 /* qw1 */
264 #define ITCT_HDR_MAX_SAS_ADDR_OFF	0
265 #define ITCT_HDR_MAX_SAS_ADDR_MSK	(0xffffffffffffffff << \
266 					ITCT_HDR_MAX_SAS_ADDR_OFF)
267 /* qw2 */
268 #define ITCT_HDR_IT_NEXUS_LOSS_TL_OFF	0
269 #define ITCT_HDR_IT_NEXUS_LOSS_TL_MSK	(0xffffULL << \
270 					ITCT_HDR_IT_NEXUS_LOSS_TL_OFF)
271 #define ITCT_HDR_BUS_INACTIVE_TL_OFF	16
272 #define ITCT_HDR_BUS_INACTIVE_TL_MSK	(0xffffULL << \
273 					ITCT_HDR_BUS_INACTIVE_TL_OFF)
274 #define ITCT_HDR_MAX_CONN_TL_OFF	32
275 #define ITCT_HDR_MAX_CONN_TL_MSK	(0xffffULL << \
276 					ITCT_HDR_MAX_CONN_TL_OFF)
277 #define ITCT_HDR_REJ_OPEN_TL_OFF	48
278 #define ITCT_HDR_REJ_OPEN_TL_MSK	(0xffffULL << \
279 					ITCT_HDR_REJ_OPEN_TL_OFF)
280 
281 /* Err record header */
282 #define ERR_HDR_DMA_TX_ERR_TYPE_OFF	0
283 #define ERR_HDR_DMA_TX_ERR_TYPE_MSK	(0xffff << ERR_HDR_DMA_TX_ERR_TYPE_OFF)
284 #define ERR_HDR_DMA_RX_ERR_TYPE_OFF	16
285 #define ERR_HDR_DMA_RX_ERR_TYPE_MSK	(0xffff << ERR_HDR_DMA_RX_ERR_TYPE_OFF)
286 
287 struct hisi_sas_complete_v1_hdr {
288 	__le32 data;
289 };
290 
291 struct hisi_sas_err_record_v1 {
292 	/* dw0 */
293 	__le32 dma_err_type;
294 
295 	/* dw1 */
296 	__le32 trans_tx_fail_type;
297 
298 	/* dw2 */
299 	__le32 trans_rx_fail_type;
300 
301 	/* dw3 */
302 	u32 rsvd;
303 };
304 
305 enum {
306 	HISI_SAS_PHY_BCAST_ACK = 0,
307 	HISI_SAS_PHY_SL_PHY_ENABLED,
308 	HISI_SAS_PHY_INT_ABNORMAL,
309 	HISI_SAS_PHY_INT_NR
310 };
311 
312 enum {
313 	DMA_TX_ERR_BASE = 0x0,
314 	DMA_RX_ERR_BASE = 0x100,
315 	TRANS_TX_FAIL_BASE = 0x200,
316 	TRANS_RX_FAIL_BASE = 0x300,
317 
318 	/* dma tx */
319 	DMA_TX_DIF_CRC_ERR = DMA_TX_ERR_BASE, /* 0x0 */
320 	DMA_TX_DIF_APP_ERR, /* 0x1 */
321 	DMA_TX_DIF_RPP_ERR, /* 0x2 */
322 	DMA_TX_AXI_BUS_ERR, /* 0x3 */
323 	DMA_TX_DATA_SGL_OVERFLOW_ERR, /* 0x4 */
324 	DMA_TX_DIF_SGL_OVERFLOW_ERR, /* 0x5 */
325 	DMA_TX_UNEXP_XFER_RDY_ERR, /* 0x6 */
326 	DMA_TX_XFER_RDY_OFFSET_ERR, /* 0x7 */
327 	DMA_TX_DATA_UNDERFLOW_ERR, /* 0x8 */
328 	DMA_TX_XFER_RDY_LENGTH_OVERFLOW_ERR, /* 0x9 */
329 
330 	/* dma rx */
331 	DMA_RX_BUFFER_ECC_ERR = DMA_RX_ERR_BASE, /* 0x100 */
332 	DMA_RX_DIF_CRC_ERR, /* 0x101 */
333 	DMA_RX_DIF_APP_ERR, /* 0x102 */
334 	DMA_RX_DIF_RPP_ERR, /* 0x103 */
335 	DMA_RX_RESP_BUFFER_OVERFLOW_ERR, /* 0x104 */
336 	DMA_RX_AXI_BUS_ERR, /* 0x105 */
337 	DMA_RX_DATA_SGL_OVERFLOW_ERR, /* 0x106 */
338 	DMA_RX_DIF_SGL_OVERFLOW_ERR, /* 0x107 */
339 	DMA_RX_DATA_OFFSET_ERR, /* 0x108 */
340 	DMA_RX_UNEXP_RX_DATA_ERR, /* 0x109 */
341 	DMA_RX_DATA_OVERFLOW_ERR, /* 0x10a */
342 	DMA_RX_DATA_UNDERFLOW_ERR, /* 0x10b */
343 	DMA_RX_UNEXP_RETRANS_RESP_ERR, /* 0x10c */
344 
345 	/* trans tx */
346 	TRANS_TX_RSVD0_ERR = TRANS_TX_FAIL_BASE, /* 0x200 */
347 	TRANS_TX_PHY_NOT_ENABLE_ERR, /* 0x201 */
348 	TRANS_TX_OPEN_REJCT_WRONG_DEST_ERR, /* 0x202 */
349 	TRANS_TX_OPEN_REJCT_ZONE_VIOLATION_ERR, /* 0x203 */
350 	TRANS_TX_OPEN_REJCT_BY_OTHER_ERR, /* 0x204 */
351 	TRANS_TX_RSVD1_ERR, /* 0x205 */
352 	TRANS_TX_OPEN_REJCT_AIP_TIMEOUT_ERR, /* 0x206 */
353 	TRANS_TX_OPEN_REJCT_STP_BUSY_ERR, /* 0x207 */
354 	TRANS_TX_OPEN_REJCT_PROTOCOL_NOT_SUPPORT_ERR, /* 0x208 */
355 	TRANS_TX_OPEN_REJCT_RATE_NOT_SUPPORT_ERR, /* 0x209 */
356 	TRANS_TX_OPEN_REJCT_BAD_DEST_ERR, /* 0x20a */
357 	TRANS_TX_OPEN_BREAK_RECEIVE_ERR, /* 0x20b */
358 	TRANS_TX_LOW_PHY_POWER_ERR, /* 0x20c */
359 	TRANS_TX_OPEN_REJCT_PATHWAY_BLOCKED_ERR, /* 0x20d */
360 	TRANS_TX_OPEN_TIMEOUT_ERR, /* 0x20e */
361 	TRANS_TX_OPEN_REJCT_NO_DEST_ERR, /* 0x20f */
362 	TRANS_TX_OPEN_RETRY_ERR, /* 0x210 */
363 	TRANS_TX_RSVD2_ERR, /* 0x211 */
364 	TRANS_TX_BREAK_TIMEOUT_ERR, /* 0x212 */
365 	TRANS_TX_BREAK_REQUEST_ERR, /* 0x213 */
366 	TRANS_TX_BREAK_RECEIVE_ERR, /* 0x214 */
367 	TRANS_TX_CLOSE_TIMEOUT_ERR, /* 0x215 */
368 	TRANS_TX_CLOSE_NORMAL_ERR, /* 0x216 */
369 	TRANS_TX_CLOSE_PHYRESET_ERR, /* 0x217 */
370 	TRANS_TX_WITH_CLOSE_DWS_TIMEOUT_ERR, /* 0x218 */
371 	TRANS_TX_WITH_CLOSE_COMINIT_ERR, /* 0x219 */
372 	TRANS_TX_NAK_RECEIVE_ERR, /* 0x21a */
373 	TRANS_TX_ACK_NAK_TIMEOUT_ERR, /* 0x21b */
374 	TRANS_TX_CREDIT_TIMEOUT_ERR, /* 0x21c */
375 	TRANS_TX_IPTT_CONFLICT_ERR, /* 0x21d */
376 	TRANS_TX_TXFRM_TYPE_ERR, /* 0x21e */
377 	TRANS_TX_TXSMP_LENGTH_ERR, /* 0x21f */
378 
379 	/* trans rx */
380 	TRANS_RX_FRAME_CRC_ERR = TRANS_RX_FAIL_BASE, /* 0x300 */
381 	TRANS_RX_FRAME_DONE_ERR, /* 0x301 */
382 	TRANS_RX_FRAME_ERRPRM_ERR, /* 0x302 */
383 	TRANS_RX_FRAME_NO_CREDIT_ERR, /* 0x303 */
384 	TRANS_RX_RSVD0_ERR, /* 0x304 */
385 	TRANS_RX_FRAME_OVERRUN_ERR, /* 0x305 */
386 	TRANS_RX_FRAME_NO_EOF_ERR, /* 0x306 */
387 	TRANS_RX_LINK_BUF_OVERRUN_ERR, /* 0x307 */
388 	TRANS_RX_BREAK_TIMEOUT_ERR, /* 0x308 */
389 	TRANS_RX_BREAK_REQUEST_ERR, /* 0x309 */
390 	TRANS_RX_BREAK_RECEIVE_ERR, /* 0x30a */
391 	TRANS_RX_CLOSE_TIMEOUT_ERR, /* 0x30b */
392 	TRANS_RX_CLOSE_NORMAL_ERR, /* 0x30c */
393 	TRANS_RX_CLOSE_PHYRESET_ERR, /* 0x30d */
394 	TRANS_RX_WITH_CLOSE_DWS_TIMEOUT_ERR, /* 0x30e */
395 	TRANS_RX_WITH_CLOSE_COMINIT_ERR, /* 0x30f */
396 	TRANS_RX_DATA_LENGTH0_ERR, /* 0x310 */
397 	TRANS_RX_BAD_HASH_ERR, /* 0x311 */
398 	TRANS_RX_XRDY_ZERO_ERR, /* 0x312 */
399 	TRANS_RX_SSP_FRAME_LEN_ERR, /* 0x313 */
400 	TRANS_RX_TRANS_RX_RSVD1_ERR, /* 0x314 */
401 	TRANS_RX_NO_BALANCE_ERR, /* 0x315 */
402 	TRANS_RX_TRANS_RX_RSVD2_ERR, /* 0x316 */
403 	TRANS_RX_TRANS_RX_RSVD3_ERR, /* 0x317 */
404 	TRANS_RX_BAD_FRAME_TYPE_ERR, /* 0x318 */
405 	TRANS_RX_SMP_FRAME_LEN_ERR, /* 0x319 */
406 	TRANS_RX_SMP_RESP_TIMEOUT_ERR, /* 0x31a */
407 };
408 
409 #define HISI_SAS_COMMAND_ENTRIES_V1_HW 8192
410 
411 #define HISI_SAS_PHY_MAX_INT_NR (HISI_SAS_PHY_INT_NR * HISI_SAS_MAX_PHYS)
412 #define HISI_SAS_CQ_MAX_INT_NR (HISI_SAS_MAX_QUEUES)
413 #define HISI_SAS_FATAL_INT_NR (2)
414 
415 #define HISI_SAS_MAX_INT_NR \
416 	(HISI_SAS_PHY_MAX_INT_NR + HISI_SAS_CQ_MAX_INT_NR +\
417 	HISI_SAS_FATAL_INT_NR)
418 
419 static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off)
420 {
421 	void __iomem *regs = hisi_hba->regs + off;
422 
423 	return readl(regs);
424 }
425 
426 static u32 hisi_sas_read32_relaxed(struct hisi_hba *hisi_hba, u32 off)
427 {
428 	void __iomem *regs = hisi_hba->regs + off;
429 
430 	return readl_relaxed(regs);
431 }
432 
433 static void hisi_sas_write32(struct hisi_hba *hisi_hba,
434 				    u32 off, u32 val)
435 {
436 	void __iomem *regs = hisi_hba->regs + off;
437 
438 	writel(val, regs);
439 }
440 
441 static void hisi_sas_phy_write32(struct hisi_hba *hisi_hba,
442 					int phy_no, u32 off, u32 val)
443 {
444 	void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
445 
446 	writel(val, regs);
447 }
448 
449 static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba,
450 				      int phy_no, u32 off)
451 {
452 	void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
453 
454 	return readl(regs);
455 }
456 
457 static void config_phy_opt_mode_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
458 {
459 	u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
460 
461 	cfg &= ~PHY_CFG_DC_OPT_MSK;
462 	cfg |= 1 << PHY_CFG_DC_OPT_OFF;
463 	hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
464 }
465 
466 static void config_tx_tfe_autoneg_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
467 {
468 	u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CONFIG2);
469 
470 	cfg &= ~PHY_CONFIG2_FORCE_TXDEEMPH_MSK;
471 	hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CONFIG2, cfg);
472 }
473 
474 static void config_id_frame_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
475 {
476 	struct sas_identify_frame identify_frame;
477 	u32 *identify_buffer;
478 
479 	memset(&identify_frame, 0, sizeof(identify_frame));
480 	identify_frame.dev_type = SAS_END_DEVICE;
481 	identify_frame.frame_type = 0;
482 	identify_frame._un1 = 1;
483 	identify_frame.initiator_bits = SAS_PROTOCOL_ALL;
484 	identify_frame.target_bits = SAS_PROTOCOL_NONE;
485 	memcpy(&identify_frame._un4_11[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
486 	memcpy(&identify_frame.sas_addr[0], hisi_hba->sas_addr,	SAS_ADDR_SIZE);
487 	identify_frame.phy_id = phy_no;
488 	identify_buffer = (u32 *)(&identify_frame);
489 
490 	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0,
491 			__swab32(identify_buffer[0]));
492 	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1,
493 			__swab32(identify_buffer[1]));
494 	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2,
495 			__swab32(identify_buffer[2]));
496 	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3,
497 			__swab32(identify_buffer[3]));
498 	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4,
499 			__swab32(identify_buffer[4]));
500 	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5,
501 			__swab32(identify_buffer[5]));
502 }
503 
504 static void setup_itct_v1_hw(struct hisi_hba *hisi_hba,
505 			     struct hisi_sas_device *sas_dev)
506 {
507 	struct domain_device *device = sas_dev->sas_device;
508 	struct device *dev = hisi_hba->dev;
509 	u64 qw0, device_id = sas_dev->device_id;
510 	struct hisi_sas_itct *itct = &hisi_hba->itct[device_id];
511 	struct asd_sas_port *sas_port = device->port;
512 	struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
513 
514 	memset(itct, 0, sizeof(*itct));
515 
516 	/* qw0 */
517 	qw0 = 0;
518 	switch (sas_dev->dev_type) {
519 	case SAS_END_DEVICE:
520 	case SAS_EDGE_EXPANDER_DEVICE:
521 	case SAS_FANOUT_EXPANDER_DEVICE:
522 		qw0 = HISI_SAS_DEV_TYPE_SSP << ITCT_HDR_DEV_TYPE_OFF;
523 		break;
524 	default:
525 		dev_warn(dev, "setup itct: unsupported dev type (%d)\n",
526 			 sas_dev->dev_type);
527 	}
528 
529 	qw0 |= ((1 << ITCT_HDR_VALID_OFF) |
530 		(1 << ITCT_HDR_AWT_CONTROL_OFF) |
531 		(device->max_linkrate << ITCT_HDR_MAX_CONN_RATE_OFF) |
532 		(1 << ITCT_HDR_VALID_LINK_NUM_OFF) |
533 		(port->id << ITCT_HDR_PORT_ID_OFF));
534 	itct->qw0 = cpu_to_le64(qw0);
535 
536 	/* qw1 */
537 	memcpy(&itct->sas_addr, device->sas_addr, SAS_ADDR_SIZE);
538 	itct->sas_addr = __swab64(itct->sas_addr);
539 
540 	/* qw2 */
541 	itct->qw2 = cpu_to_le64((500ULL << ITCT_HDR_IT_NEXUS_LOSS_TL_OFF) |
542 				(0xff00ULL << ITCT_HDR_BUS_INACTIVE_TL_OFF) |
543 				(0xff00ULL << ITCT_HDR_MAX_CONN_TL_OFF) |
544 				(0xff00ULL << ITCT_HDR_REJ_OPEN_TL_OFF));
545 }
546 
547 static void free_device_v1_hw(struct hisi_hba *hisi_hba,
548 			      struct hisi_sas_device *sas_dev)
549 {
550 	u64 dev_id = sas_dev->device_id;
551 	struct hisi_sas_itct *itct = &hisi_hba->itct[dev_id];
552 	u64 qw0;
553 	u32 reg_val = hisi_sas_read32(hisi_hba, CFG_AGING_TIME);
554 
555 	reg_val |= CFG_AGING_TIME_ITCT_REL_MSK;
556 	hisi_sas_write32(hisi_hba, CFG_AGING_TIME, reg_val);
557 
558 	/* free itct */
559 	udelay(1);
560 	reg_val = hisi_sas_read32(hisi_hba, CFG_AGING_TIME);
561 	reg_val &= ~CFG_AGING_TIME_ITCT_REL_MSK;
562 	hisi_sas_write32(hisi_hba, CFG_AGING_TIME, reg_val);
563 
564 	qw0 = cpu_to_le64(itct->qw0);
565 	qw0 &= ~ITCT_HDR_VALID_MSK;
566 	itct->qw0 = cpu_to_le64(qw0);
567 }
568 
569 static int reset_hw_v1_hw(struct hisi_hba *hisi_hba)
570 {
571 	int i;
572 	unsigned long end_time;
573 	u32 val;
574 	struct device *dev = hisi_hba->dev;
575 
576 	for (i = 0; i < hisi_hba->n_phy; i++) {
577 		u32 phy_ctrl = hisi_sas_phy_read32(hisi_hba, i, PHY_CTRL);
578 
579 		phy_ctrl |= PHY_CTRL_RESET_MSK;
580 		hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL, phy_ctrl);
581 	}
582 	msleep(1); /* It is safe to wait for 50us */
583 
584 	/* Ensure DMA tx & rx idle */
585 	for (i = 0; i < hisi_hba->n_phy; i++) {
586 		u32 dma_tx_status, dma_rx_status;
587 
588 		end_time = jiffies + msecs_to_jiffies(1000);
589 
590 		while (1) {
591 			dma_tx_status = hisi_sas_phy_read32(hisi_hba, i,
592 							    DMA_TX_STATUS);
593 			dma_rx_status = hisi_sas_phy_read32(hisi_hba, i,
594 							    DMA_RX_STATUS);
595 
596 			if (!(dma_tx_status & DMA_TX_STATUS_BUSY_MSK) &&
597 				!(dma_rx_status & DMA_RX_STATUS_BUSY_MSK))
598 				break;
599 
600 			msleep(20);
601 			if (time_after(jiffies, end_time))
602 				return -EIO;
603 		}
604 	}
605 
606 	/* Ensure axi bus idle */
607 	end_time = jiffies + msecs_to_jiffies(1000);
608 	while (1) {
609 		u32 axi_status =
610 			hisi_sas_read32(hisi_hba, AXI_CFG);
611 
612 		if (axi_status == 0)
613 			break;
614 
615 		msleep(20);
616 		if (time_after(jiffies, end_time))
617 			return -EIO;
618 	}
619 
620 	if (ACPI_HANDLE(dev)) {
621 		acpi_status s;
622 
623 		s = acpi_evaluate_object(ACPI_HANDLE(dev), "_RST", NULL, NULL);
624 		if (ACPI_FAILURE(s)) {
625 			dev_err(dev, "Reset failed\n");
626 			return -EIO;
627 		}
628 	} else if (hisi_hba->ctrl) {
629 		/* Apply reset and disable clock */
630 		/* clk disable reg is offset by +4 bytes from clk enable reg */
631 		regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg,
632 			     RESET_VALUE);
633 		regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg + 4,
634 			     RESET_VALUE);
635 		msleep(1);
636 		regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg, &val);
637 		if (RESET_VALUE != (val & RESET_VALUE)) {
638 			dev_err(dev, "Reset failed\n");
639 			return -EIO;
640 		}
641 
642 		/* De-reset and enable clock */
643 		/* deassert rst reg is offset by +4 bytes from assert reg */
644 		regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg + 4,
645 			     RESET_VALUE);
646 		regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg,
647 			     RESET_VALUE);
648 		msleep(1);
649 		regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg, &val);
650 		if (val & RESET_VALUE) {
651 			dev_err(dev, "De-reset failed\n");
652 			return -EIO;
653 		}
654 	} else
655 		dev_warn(dev, "no reset method\n");
656 
657 	return 0;
658 }
659 
660 static void init_reg_v1_hw(struct hisi_hba *hisi_hba)
661 {
662 	int i;
663 
664 	/* Global registers init*/
665 	hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE,
666 			 (u32)((1ULL << hisi_hba->queue_count) - 1));
667 	hisi_sas_write32(hisi_hba, HGC_TRANS_TASK_CNT_LIMIT, 0x11);
668 	hisi_sas_write32(hisi_hba, DEVICE_MSG_WORK_MODE, 0x1);
669 	hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x1ff);
670 	hisi_sas_write32(hisi_hba, HGC_ERR_STAT_EN, 0x401);
671 	hisi_sas_write32(hisi_hba, CFG_1US_TIMER_TRSH, 0x64);
672 	hisi_sas_write32(hisi_hba, HGC_GET_ITV_TIME, 0x1);
673 	hisi_sas_write32(hisi_hba, I_T_NEXUS_LOSS_TIME, 0x64);
674 	hisi_sas_write32(hisi_hba, BUS_INACTIVE_LIMIT_TIME, 0x2710);
675 	hisi_sas_write32(hisi_hba, REJECT_TO_OPEN_LIMIT_TIME, 0x1);
676 	hisi_sas_write32(hisi_hba, CFG_AGING_TIME, 0x7a12);
677 	hisi_sas_write32(hisi_hba, HGC_DFX_CFG2, 0x9c40);
678 	hisi_sas_write32(hisi_hba, FIS_LIST_BADDR_L, 0x2);
679 	hisi_sas_write32(hisi_hba, INT_COAL_EN, 0xc);
680 	hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x186a0);
681 	hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 1);
682 	hisi_sas_write32(hisi_hba, ENT_INT_COAL_TIME, 0x1);
683 	hisi_sas_write32(hisi_hba, ENT_INT_COAL_CNT, 0x1);
684 	hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0xffffffff);
685 	hisi_sas_write32(hisi_hba, OQ_INT_SRC_MSK, 0);
686 	hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff);
687 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0);
688 	hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff);
689 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0);
690 	hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0);
691 	hisi_sas_write32(hisi_hba, AXI_AHB_CLK_CFG, 0x2);
692 	hisi_sas_write32(hisi_hba, CFG_SAS_CONFIG, 0x22000000);
693 
694 	for (i = 0; i < hisi_hba->n_phy; i++) {
695 		hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE, 0x88a);
696 		hisi_sas_phy_write32(hisi_hba, i, PHY_CONFIG2, 0x7c080);
697 		hisi_sas_phy_write32(hisi_hba, i, PHY_RATE_NEGO, 0x415ee00);
698 		hisi_sas_phy_write32(hisi_hba, i, PHY_PCN, 0x80a80000);
699 		hisi_sas_phy_write32(hisi_hba, i, SL_TOUT_CFG, 0x7d7d7d7d);
700 		hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0x0);
701 		hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000);
702 		hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0);
703 		hisi_sas_phy_write32(hisi_hba, i, CON_CFG_DRIVER, 0x13f0a);
704 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT_COAL_EN, 3);
705 		hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 8);
706 	}
707 
708 	for (i = 0; i < hisi_hba->queue_count; i++) {
709 		/* Delivery queue */
710 		hisi_sas_write32(hisi_hba,
711 				 DLVRY_Q_0_BASE_ADDR_HI + (i * 0x14),
712 				 upper_32_bits(hisi_hba->cmd_hdr_dma[i]));
713 
714 		hisi_sas_write32(hisi_hba,
715 				 DLVRY_Q_0_BASE_ADDR_LO + (i * 0x14),
716 				 lower_32_bits(hisi_hba->cmd_hdr_dma[i]));
717 
718 		hisi_sas_write32(hisi_hba,
719 				 DLVRY_Q_0_DEPTH + (i * 0x14),
720 				 HISI_SAS_QUEUE_SLOTS);
721 
722 		/* Completion queue */
723 		hisi_sas_write32(hisi_hba,
724 				 COMPL_Q_0_BASE_ADDR_HI + (i * 0x14),
725 				 upper_32_bits(hisi_hba->complete_hdr_dma[i]));
726 
727 		hisi_sas_write32(hisi_hba,
728 				 COMPL_Q_0_BASE_ADDR_LO + (i * 0x14),
729 				 lower_32_bits(hisi_hba->complete_hdr_dma[i]));
730 
731 		hisi_sas_write32(hisi_hba, COMPL_Q_0_DEPTH + (i * 0x14),
732 				 HISI_SAS_QUEUE_SLOTS);
733 	}
734 
735 	/* itct */
736 	hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_LO,
737 			 lower_32_bits(hisi_hba->itct_dma));
738 
739 	hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_HI,
740 			 upper_32_bits(hisi_hba->itct_dma));
741 
742 	/* iost */
743 	hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_LO,
744 			 lower_32_bits(hisi_hba->iost_dma));
745 
746 	hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_HI,
747 			 upper_32_bits(hisi_hba->iost_dma));
748 
749 	/* breakpoint */
750 	hisi_sas_write32(hisi_hba, BROKEN_MSG_ADDR_LO,
751 			 lower_32_bits(hisi_hba->breakpoint_dma));
752 
753 	hisi_sas_write32(hisi_hba, BROKEN_MSG_ADDR_HI,
754 			 upper_32_bits(hisi_hba->breakpoint_dma));
755 }
756 
757 static int hw_init_v1_hw(struct hisi_hba *hisi_hba)
758 {
759 	struct device *dev = hisi_hba->dev;
760 	int rc;
761 
762 	rc = reset_hw_v1_hw(hisi_hba);
763 	if (rc) {
764 		dev_err(dev, "hisi_sas_reset_hw failed, rc=%d", rc);
765 		return rc;
766 	}
767 
768 	msleep(100);
769 	init_reg_v1_hw(hisi_hba);
770 
771 	return 0;
772 }
773 
774 static void enable_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
775 {
776 	u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
777 
778 	cfg |= PHY_CFG_ENA_MSK;
779 	hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
780 }
781 
782 static void disable_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
783 {
784 	u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
785 
786 	cfg &= ~PHY_CFG_ENA_MSK;
787 	hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
788 }
789 
790 static void start_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
791 {
792 	config_id_frame_v1_hw(hisi_hba, phy_no);
793 	config_phy_opt_mode_v1_hw(hisi_hba, phy_no);
794 	config_tx_tfe_autoneg_v1_hw(hisi_hba, phy_no);
795 	enable_phy_v1_hw(hisi_hba, phy_no);
796 }
797 
798 static void stop_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
799 {
800 	disable_phy_v1_hw(hisi_hba, phy_no);
801 }
802 
803 static void phy_hard_reset_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
804 {
805 	stop_phy_v1_hw(hisi_hba, phy_no);
806 	msleep(100);
807 	start_phy_v1_hw(hisi_hba, phy_no);
808 }
809 
810 static void start_phys_v1_hw(struct timer_list *t)
811 {
812 	struct hisi_hba *hisi_hba = from_timer(hisi_hba, t, timer);
813 	int i;
814 
815 	for (i = 0; i < hisi_hba->n_phy; i++) {
816 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x12a);
817 		start_phy_v1_hw(hisi_hba, i);
818 	}
819 }
820 
821 static void phys_init_v1_hw(struct hisi_hba *hisi_hba)
822 {
823 	int i;
824 	struct timer_list *timer = &hisi_hba->timer;
825 
826 	for (i = 0; i < hisi_hba->n_phy; i++) {
827 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x6a);
828 		hisi_sas_phy_read32(hisi_hba, i, CHL_INT2_MSK);
829 	}
830 
831 	timer_setup(timer, start_phys_v1_hw, 0);
832 	mod_timer(timer, jiffies + HZ);
833 }
834 
835 static void sl_notify_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
836 {
837 	u32 sl_control;
838 
839 	sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
840 	sl_control |= SL_CONTROL_NOTIFY_EN_MSK;
841 	hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
842 	msleep(1);
843 	sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
844 	sl_control &= ~SL_CONTROL_NOTIFY_EN_MSK;
845 	hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
846 }
847 
848 static enum sas_linkrate phy_get_max_linkrate_v1_hw(void)
849 {
850 	return SAS_LINK_RATE_6_0_GBPS;
851 }
852 
853 static void phy_set_linkrate_v1_hw(struct hisi_hba *hisi_hba, int phy_no,
854 		struct sas_phy_linkrates *r)
855 {
856 	u32 prog_phy_link_rate =
857 		hisi_sas_phy_read32(hisi_hba, phy_no, PROG_PHY_LINK_RATE);
858 	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
859 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
860 	int i;
861 	enum sas_linkrate min, max;
862 	u32 rate_mask = 0;
863 
864 	if (r->maximum_linkrate == SAS_LINK_RATE_UNKNOWN) {
865 		max = sas_phy->phy->maximum_linkrate;
866 		min = r->minimum_linkrate;
867 	} else if (r->minimum_linkrate == SAS_LINK_RATE_UNKNOWN) {
868 		max = r->maximum_linkrate;
869 		min = sas_phy->phy->minimum_linkrate;
870 	} else
871 		return;
872 
873 	sas_phy->phy->maximum_linkrate = max;
874 	sas_phy->phy->minimum_linkrate = min;
875 
876 	min -= SAS_LINK_RATE_1_5_GBPS;
877 	max -= SAS_LINK_RATE_1_5_GBPS;
878 
879 	for (i = 0; i <= max; i++)
880 		rate_mask |= 1 << (i * 2);
881 
882 	prog_phy_link_rate &= ~0xff;
883 	prog_phy_link_rate |= rate_mask;
884 
885 	hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE,
886 			prog_phy_link_rate);
887 
888 	phy_hard_reset_v1_hw(hisi_hba, phy_no);
889 }
890 
891 static int get_wideport_bitmap_v1_hw(struct hisi_hba *hisi_hba, int port_id)
892 {
893 	int i, bitmap = 0;
894 	u32 phy_port_num_ma = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
895 
896 	for (i = 0; i < hisi_hba->n_phy; i++)
897 		if (((phy_port_num_ma >> (i * 4)) & 0xf) == port_id)
898 			bitmap |= 1 << i;
899 
900 	return bitmap;
901 }
902 
903 /*
904  * The callpath to this function and upto writing the write
905  * queue pointer should be safe from interruption.
906  */
907 static int
908 get_free_slot_v1_hw(struct hisi_hba *hisi_hba, struct hisi_sas_dq *dq)
909 {
910 	struct device *dev = hisi_hba->dev;
911 	int queue = dq->id;
912 	u32 r, w;
913 
914 	w = dq->wr_point;
915 	r = hisi_sas_read32_relaxed(hisi_hba,
916 				DLVRY_Q_0_RD_PTR + (queue * 0x14));
917 	if (r == (w+1) % HISI_SAS_QUEUE_SLOTS) {
918 		dev_warn(dev, "could not find free slot\n");
919 		return -EAGAIN;
920 	}
921 
922 	return 0;
923 }
924 
925 static void start_delivery_v1_hw(struct hisi_sas_dq *dq)
926 {
927 	struct hisi_hba *hisi_hba = dq->hisi_hba;
928 	int dlvry_queue = dq->slot_prep->dlvry_queue;
929 	int dlvry_queue_slot = dq->slot_prep->dlvry_queue_slot;
930 
931 	dq->wr_point = ++dlvry_queue_slot % HISI_SAS_QUEUE_SLOTS;
932 	hisi_sas_write32(hisi_hba, DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14),
933 			 dq->wr_point);
934 }
935 
936 static int prep_prd_sge_v1_hw(struct hisi_hba *hisi_hba,
937 			      struct hisi_sas_slot *slot,
938 			      struct hisi_sas_cmd_hdr *hdr,
939 			      struct scatterlist *scatter,
940 			      int n_elem)
941 {
942 	struct hisi_sas_sge_page *sge_page = hisi_sas_sge_addr_mem(slot);
943 	struct device *dev = hisi_hba->dev;
944 	struct scatterlist *sg;
945 	int i;
946 
947 	if (n_elem > HISI_SAS_SGE_PAGE_CNT) {
948 		dev_err(dev, "prd err: n_elem(%d) > HISI_SAS_SGE_PAGE_CNT",
949 			n_elem);
950 		return -EINVAL;
951 	}
952 
953 	for_each_sg(scatter, sg, n_elem, i) {
954 		struct hisi_sas_sge *entry = &sge_page->sge[i];
955 
956 		entry->addr = cpu_to_le64(sg_dma_address(sg));
957 		entry->page_ctrl_0 = entry->page_ctrl_1 = 0;
958 		entry->data_len = cpu_to_le32(sg_dma_len(sg));
959 		entry->data_off = 0;
960 	}
961 
962 	hdr->prd_table_addr = cpu_to_le64(hisi_sas_sge_addr_dma(slot));
963 
964 	hdr->sg_len = cpu_to_le32(n_elem << CMD_HDR_DATA_SGL_LEN_OFF);
965 
966 	return 0;
967 }
968 
969 static int prep_smp_v1_hw(struct hisi_hba *hisi_hba,
970 			  struct hisi_sas_slot *slot)
971 {
972 	struct sas_task *task = slot->task;
973 	struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
974 	struct domain_device *device = task->dev;
975 	struct device *dev = hisi_hba->dev;
976 	struct hisi_sas_port *port = slot->port;
977 	struct scatterlist *sg_req, *sg_resp;
978 	struct hisi_sas_device *sas_dev = device->lldd_dev;
979 	dma_addr_t req_dma_addr;
980 	unsigned int req_len, resp_len;
981 	int elem, rc;
982 
983 	/*
984 	* DMA-map SMP request, response buffers
985 	*/
986 	/* req */
987 	sg_req = &task->smp_task.smp_req;
988 	elem = dma_map_sg(dev, sg_req, 1, DMA_TO_DEVICE);
989 	if (!elem)
990 		return -ENOMEM;
991 	req_len = sg_dma_len(sg_req);
992 	req_dma_addr = sg_dma_address(sg_req);
993 
994 	/* resp */
995 	sg_resp = &task->smp_task.smp_resp;
996 	elem = dma_map_sg(dev, sg_resp, 1, DMA_FROM_DEVICE);
997 	if (!elem) {
998 		rc = -ENOMEM;
999 		goto err_out_req;
1000 	}
1001 	resp_len = sg_dma_len(sg_resp);
1002 	if ((req_len & 0x3) || (resp_len & 0x3)) {
1003 		rc = -EINVAL;
1004 		goto err_out_resp;
1005 	}
1006 
1007 	/* create header */
1008 	/* dw0 */
1009 	hdr->dw0 = cpu_to_le32((port->id << CMD_HDR_PORT_OFF) |
1010 			       (1 << CMD_HDR_PRIORITY_OFF) | /* high pri */
1011 			       (1 << CMD_HDR_MODE_OFF) | /* ini mode */
1012 			       (2 << CMD_HDR_CMD_OFF)); /* smp */
1013 
1014 	/* map itct entry */
1015 	hdr->dw1 = cpu_to_le32(sas_dev->device_id << CMD_HDR_DEVICE_ID_OFF);
1016 
1017 	/* dw2 */
1018 	hdr->dw2 = cpu_to_le32((((req_len-4)/4) << CMD_HDR_CFL_OFF) |
1019 			       (HISI_SAS_MAX_SMP_RESP_SZ/4 <<
1020 			       CMD_HDR_MRFL_OFF));
1021 
1022 	hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
1023 
1024 	hdr->cmd_table_addr = cpu_to_le64(req_dma_addr);
1025 	hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
1026 
1027 	return 0;
1028 
1029 err_out_resp:
1030 	dma_unmap_sg(dev, &slot->task->smp_task.smp_resp, 1,
1031 		     DMA_FROM_DEVICE);
1032 err_out_req:
1033 	dma_unmap_sg(dev, &slot->task->smp_task.smp_req, 1,
1034 		     DMA_TO_DEVICE);
1035 	return rc;
1036 }
1037 
1038 static int prep_ssp_v1_hw(struct hisi_hba *hisi_hba,
1039 			  struct hisi_sas_slot *slot, int is_tmf,
1040 			  struct hisi_sas_tmf_task *tmf)
1041 {
1042 	struct sas_task *task = slot->task;
1043 	struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
1044 	struct domain_device *device = task->dev;
1045 	struct hisi_sas_device *sas_dev = device->lldd_dev;
1046 	struct hisi_sas_port *port = slot->port;
1047 	struct sas_ssp_task *ssp_task = &task->ssp_task;
1048 	struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
1049 	int has_data = 0, rc, priority = is_tmf;
1050 	u8 *buf_cmd, fburst = 0;
1051 	u32 dw1, dw2;
1052 
1053 	/* create header */
1054 	hdr->dw0 = cpu_to_le32((1 << CMD_HDR_RESP_REPORT_OFF) |
1055 			       (0x2 << CMD_HDR_TLR_CTRL_OFF) |
1056 			       (port->id << CMD_HDR_PORT_OFF) |
1057 			       (priority << CMD_HDR_PRIORITY_OFF) |
1058 			       (1 << CMD_HDR_MODE_OFF) | /* ini mode */
1059 			       (1 << CMD_HDR_CMD_OFF)); /* ssp */
1060 
1061 	dw1 = 1 << CMD_HDR_VERIFY_DTL_OFF;
1062 
1063 	if (is_tmf) {
1064 		dw1 |= 3 << CMD_HDR_SSP_FRAME_TYPE_OFF;
1065 	} else {
1066 		switch (scsi_cmnd->sc_data_direction) {
1067 		case DMA_TO_DEVICE:
1068 			dw1 |= 2 << CMD_HDR_SSP_FRAME_TYPE_OFF;
1069 			has_data = 1;
1070 			break;
1071 		case DMA_FROM_DEVICE:
1072 			dw1 |= 1 << CMD_HDR_SSP_FRAME_TYPE_OFF;
1073 			has_data = 1;
1074 			break;
1075 		default:
1076 			dw1 |= 0 << CMD_HDR_SSP_FRAME_TYPE_OFF;
1077 		}
1078 	}
1079 
1080 	/* map itct entry */
1081 	dw1 |= sas_dev->device_id << CMD_HDR_DEVICE_ID_OFF;
1082 	hdr->dw1 = cpu_to_le32(dw1);
1083 
1084 	if (is_tmf) {
1085 		dw2 = ((sizeof(struct ssp_tmf_iu) +
1086 			sizeof(struct ssp_frame_hdr)+3)/4) <<
1087 			CMD_HDR_CFL_OFF;
1088 	} else {
1089 		dw2 = ((sizeof(struct ssp_command_iu) +
1090 			sizeof(struct ssp_frame_hdr)+3)/4) <<
1091 			CMD_HDR_CFL_OFF;
1092 	}
1093 
1094 	dw2 |= (HISI_SAS_MAX_SSP_RESP_SZ/4) << CMD_HDR_MRFL_OFF;
1095 
1096 	hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
1097 
1098 	if (has_data) {
1099 		rc = prep_prd_sge_v1_hw(hisi_hba, slot, hdr, task->scatter,
1100 					slot->n_elem);
1101 		if (rc)
1102 			return rc;
1103 	}
1104 
1105 	hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len);
1106 	hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot));
1107 	hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
1108 
1109 	buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot) +
1110 		sizeof(struct ssp_frame_hdr);
1111 	if (task->ssp_task.enable_first_burst) {
1112 		fburst = (1 << 7);
1113 		dw2 |= 1 << CMD_HDR_FIRST_BURST_OFF;
1114 	}
1115 	hdr->dw2 = cpu_to_le32(dw2);
1116 
1117 	memcpy(buf_cmd, &task->ssp_task.LUN, 8);
1118 	if (!is_tmf) {
1119 		buf_cmd[9] = fburst | task->ssp_task.task_attr |
1120 				(task->ssp_task.task_prio << 3);
1121 		memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd,
1122 				task->ssp_task.cmd->cmd_len);
1123 	} else {
1124 		buf_cmd[10] = tmf->tmf;
1125 		switch (tmf->tmf) {
1126 		case TMF_ABORT_TASK:
1127 		case TMF_QUERY_TASK:
1128 			buf_cmd[12] =
1129 				(tmf->tag_of_task_to_be_managed >> 8) & 0xff;
1130 			buf_cmd[13] =
1131 				tmf->tag_of_task_to_be_managed & 0xff;
1132 			break;
1133 		default:
1134 			break;
1135 		}
1136 	}
1137 
1138 	return 0;
1139 }
1140 
1141 /* by default, task resp is complete */
1142 static void slot_err_v1_hw(struct hisi_hba *hisi_hba,
1143 			   struct sas_task *task,
1144 			   struct hisi_sas_slot *slot)
1145 {
1146 	struct task_status_struct *ts = &task->task_status;
1147 	struct hisi_sas_err_record_v1 *err_record =
1148 			hisi_sas_status_buf_addr_mem(slot);
1149 	struct device *dev = hisi_hba->dev;
1150 
1151 	switch (task->task_proto) {
1152 	case SAS_PROTOCOL_SSP:
1153 	{
1154 		int error = -1;
1155 		u32 dma_err_type = cpu_to_le32(err_record->dma_err_type);
1156 		u32 dma_tx_err_type = ((dma_err_type &
1157 					ERR_HDR_DMA_TX_ERR_TYPE_MSK)) >>
1158 					ERR_HDR_DMA_TX_ERR_TYPE_OFF;
1159 		u32 dma_rx_err_type = ((dma_err_type &
1160 					ERR_HDR_DMA_RX_ERR_TYPE_MSK)) >>
1161 					ERR_HDR_DMA_RX_ERR_TYPE_OFF;
1162 		u32 trans_tx_fail_type =
1163 				cpu_to_le32(err_record->trans_tx_fail_type);
1164 		u32 trans_rx_fail_type =
1165 				cpu_to_le32(err_record->trans_rx_fail_type);
1166 
1167 		if (dma_tx_err_type) {
1168 			/* dma tx err */
1169 			error = ffs(dma_tx_err_type)
1170 				- 1 + DMA_TX_ERR_BASE;
1171 		} else if (dma_rx_err_type) {
1172 			/* dma rx err */
1173 			error = ffs(dma_rx_err_type)
1174 				- 1 + DMA_RX_ERR_BASE;
1175 		} else if (trans_tx_fail_type) {
1176 			/* trans tx err */
1177 			error = ffs(trans_tx_fail_type)
1178 				- 1 + TRANS_TX_FAIL_BASE;
1179 		} else if (trans_rx_fail_type) {
1180 			/* trans rx err */
1181 			error = ffs(trans_rx_fail_type)
1182 				- 1 + TRANS_RX_FAIL_BASE;
1183 		}
1184 
1185 		switch (error) {
1186 		case DMA_TX_DATA_UNDERFLOW_ERR:
1187 		case DMA_RX_DATA_UNDERFLOW_ERR:
1188 		{
1189 			ts->residual = 0;
1190 			ts->stat = SAS_DATA_UNDERRUN;
1191 			break;
1192 		}
1193 		case DMA_TX_DATA_SGL_OVERFLOW_ERR:
1194 		case DMA_TX_DIF_SGL_OVERFLOW_ERR:
1195 		case DMA_TX_XFER_RDY_LENGTH_OVERFLOW_ERR:
1196 		case DMA_RX_DATA_OVERFLOW_ERR:
1197 		case TRANS_RX_FRAME_OVERRUN_ERR:
1198 		case TRANS_RX_LINK_BUF_OVERRUN_ERR:
1199 		{
1200 			ts->stat = SAS_DATA_OVERRUN;
1201 			ts->residual = 0;
1202 			break;
1203 		}
1204 		case TRANS_TX_PHY_NOT_ENABLE_ERR:
1205 		{
1206 			ts->stat = SAS_PHY_DOWN;
1207 			break;
1208 		}
1209 		case TRANS_TX_OPEN_REJCT_WRONG_DEST_ERR:
1210 		case TRANS_TX_OPEN_REJCT_ZONE_VIOLATION_ERR:
1211 		case TRANS_TX_OPEN_REJCT_BY_OTHER_ERR:
1212 		case TRANS_TX_OPEN_REJCT_AIP_TIMEOUT_ERR:
1213 		case TRANS_TX_OPEN_REJCT_STP_BUSY_ERR:
1214 		case TRANS_TX_OPEN_REJCT_PROTOCOL_NOT_SUPPORT_ERR:
1215 		case TRANS_TX_OPEN_REJCT_RATE_NOT_SUPPORT_ERR:
1216 		case TRANS_TX_OPEN_REJCT_BAD_DEST_ERR:
1217 		case TRANS_TX_OPEN_BREAK_RECEIVE_ERR:
1218 		case TRANS_TX_OPEN_REJCT_PATHWAY_BLOCKED_ERR:
1219 		case TRANS_TX_OPEN_REJCT_NO_DEST_ERR:
1220 		case TRANS_TX_OPEN_RETRY_ERR:
1221 		{
1222 			ts->stat = SAS_OPEN_REJECT;
1223 			ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1224 			break;
1225 		}
1226 		case TRANS_TX_OPEN_TIMEOUT_ERR:
1227 		{
1228 			ts->stat = SAS_OPEN_TO;
1229 			break;
1230 		}
1231 		case TRANS_TX_NAK_RECEIVE_ERR:
1232 		case TRANS_TX_ACK_NAK_TIMEOUT_ERR:
1233 		{
1234 			ts->stat = SAS_NAK_R_ERR;
1235 			break;
1236 		}
1237 		case TRANS_TX_CREDIT_TIMEOUT_ERR:
1238 		case TRANS_TX_CLOSE_NORMAL_ERR:
1239 		{
1240 			/* This will request a retry */
1241 			ts->stat = SAS_QUEUE_FULL;
1242 			slot->abort = 1;
1243 			break;
1244 		}
1245 		default:
1246 		{
1247 			ts->stat = SAM_STAT_CHECK_CONDITION;
1248 			break;
1249 		}
1250 		}
1251 	}
1252 		break;
1253 	case SAS_PROTOCOL_SMP:
1254 		ts->stat = SAM_STAT_CHECK_CONDITION;
1255 		break;
1256 
1257 	case SAS_PROTOCOL_SATA:
1258 	case SAS_PROTOCOL_STP:
1259 	case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
1260 	{
1261 		dev_err(dev, "slot err: SATA/STP not supported");
1262 	}
1263 		break;
1264 	default:
1265 		break;
1266 	}
1267 
1268 }
1269 
1270 static int slot_complete_v1_hw(struct hisi_hba *hisi_hba,
1271 			       struct hisi_sas_slot *slot)
1272 {
1273 	struct sas_task *task = slot->task;
1274 	struct hisi_sas_device *sas_dev;
1275 	struct device *dev = hisi_hba->dev;
1276 	struct task_status_struct *ts;
1277 	struct domain_device *device;
1278 	enum exec_status sts;
1279 	struct hisi_sas_complete_v1_hdr *complete_queue =
1280 			hisi_hba->complete_hdr[slot->cmplt_queue];
1281 	struct hisi_sas_complete_v1_hdr *complete_hdr;
1282 	unsigned long flags;
1283 	u32 cmplt_hdr_data;
1284 
1285 	complete_hdr = &complete_queue[slot->cmplt_queue_slot];
1286 	cmplt_hdr_data = le32_to_cpu(complete_hdr->data);
1287 
1288 	if (unlikely(!task || !task->lldd_task || !task->dev))
1289 		return -EINVAL;
1290 
1291 	ts = &task->task_status;
1292 	device = task->dev;
1293 	sas_dev = device->lldd_dev;
1294 
1295 	spin_lock_irqsave(&task->task_state_lock, flags);
1296 	task->task_state_flags &=
1297 		~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
1298 	task->task_state_flags |= SAS_TASK_STATE_DONE;
1299 	spin_unlock_irqrestore(&task->task_state_lock, flags);
1300 
1301 	memset(ts, 0, sizeof(*ts));
1302 	ts->resp = SAS_TASK_COMPLETE;
1303 
1304 	if (unlikely(!sas_dev)) {
1305 		dev_dbg(dev, "slot complete: port has no device\n");
1306 		ts->stat = SAS_PHY_DOWN;
1307 		goto out;
1308 	}
1309 
1310 	if (cmplt_hdr_data & CMPLT_HDR_IO_CFG_ERR_MSK) {
1311 		u32 info_reg = hisi_sas_read32(hisi_hba, HGC_INVLD_DQE_INFO);
1312 
1313 		if (info_reg & HGC_INVLD_DQE_INFO_DQ_MSK)
1314 			dev_err(dev, "slot complete: [%d:%d] has dq IPTT err",
1315 				slot->cmplt_queue, slot->cmplt_queue_slot);
1316 
1317 		if (info_reg & HGC_INVLD_DQE_INFO_TYPE_MSK)
1318 			dev_err(dev, "slot complete: [%d:%d] has dq type err",
1319 				slot->cmplt_queue, slot->cmplt_queue_slot);
1320 
1321 		if (info_reg & HGC_INVLD_DQE_INFO_FORCE_MSK)
1322 			dev_err(dev, "slot complete: [%d:%d] has dq force phy err",
1323 				slot->cmplt_queue, slot->cmplt_queue_slot);
1324 
1325 		if (info_reg & HGC_INVLD_DQE_INFO_PHY_MSK)
1326 			dev_err(dev, "slot complete: [%d:%d] has dq phy id err",
1327 				slot->cmplt_queue, slot->cmplt_queue_slot);
1328 
1329 		if (info_reg & HGC_INVLD_DQE_INFO_ABORT_MSK)
1330 			dev_err(dev, "slot complete: [%d:%d] has dq abort flag err",
1331 				slot->cmplt_queue, slot->cmplt_queue_slot);
1332 
1333 		if (info_reg & HGC_INVLD_DQE_INFO_IPTT_OF_MSK)
1334 			dev_err(dev, "slot complete: [%d:%d] has dq IPTT or ICT err",
1335 				slot->cmplt_queue, slot->cmplt_queue_slot);
1336 
1337 		if (info_reg & HGC_INVLD_DQE_INFO_SSP_ERR_MSK)
1338 			dev_err(dev, "slot complete: [%d:%d] has dq SSP frame type err",
1339 				slot->cmplt_queue, slot->cmplt_queue_slot);
1340 
1341 		if (info_reg & HGC_INVLD_DQE_INFO_OFL_MSK)
1342 			dev_err(dev, "slot complete: [%d:%d] has dq order frame len err",
1343 				slot->cmplt_queue, slot->cmplt_queue_slot);
1344 
1345 		ts->stat = SAS_OPEN_REJECT;
1346 		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1347 		goto out;
1348 	}
1349 
1350 	if (cmplt_hdr_data & CMPLT_HDR_ERR_RCRD_XFRD_MSK &&
1351 		!(cmplt_hdr_data & CMPLT_HDR_RSPNS_XFRD_MSK)) {
1352 
1353 		slot_err_v1_hw(hisi_hba, task, slot);
1354 		if (unlikely(slot->abort)) {
1355 			queue_work(hisi_hba->wq, &slot->abort_slot);
1356 			/* immediately return and do not complete */
1357 			return ts->stat;
1358 		}
1359 		goto out;
1360 	}
1361 
1362 	switch (task->task_proto) {
1363 	case SAS_PROTOCOL_SSP:
1364 	{
1365 		struct hisi_sas_status_buffer *status_buffer =
1366 				hisi_sas_status_buf_addr_mem(slot);
1367 		struct ssp_response_iu *iu = (struct ssp_response_iu *)
1368 				&status_buffer->iu[0];
1369 
1370 		sas_ssp_task_response(dev, task, iu);
1371 		break;
1372 	}
1373 	case SAS_PROTOCOL_SMP:
1374 	{
1375 		void *to;
1376 		struct scatterlist *sg_resp = &task->smp_task.smp_resp;
1377 
1378 		ts->stat = SAM_STAT_GOOD;
1379 		to = kmap_atomic(sg_page(sg_resp));
1380 
1381 		dma_unmap_sg(dev, &task->smp_task.smp_resp, 1,
1382 			     DMA_FROM_DEVICE);
1383 		dma_unmap_sg(dev, &task->smp_task.smp_req, 1,
1384 			     DMA_TO_DEVICE);
1385 		memcpy(to + sg_resp->offset,
1386 		       hisi_sas_status_buf_addr_mem(slot) +
1387 		       sizeof(struct hisi_sas_err_record),
1388 		       sg_dma_len(sg_resp));
1389 		kunmap_atomic(to);
1390 		break;
1391 	}
1392 	case SAS_PROTOCOL_SATA:
1393 	case SAS_PROTOCOL_STP:
1394 	case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
1395 		dev_err(dev, "slot complete: SATA/STP not supported");
1396 		break;
1397 
1398 	default:
1399 		ts->stat = SAM_STAT_CHECK_CONDITION;
1400 		break;
1401 	}
1402 
1403 	if (!slot->port->port_attached) {
1404 		dev_err(dev, "slot complete: port %d has removed\n",
1405 			slot->port->sas_port.id);
1406 		ts->stat = SAS_PHY_DOWN;
1407 	}
1408 
1409 out:
1410 	if (sas_dev)
1411 		atomic64_dec(&sas_dev->running_req);
1412 
1413 	hisi_sas_slot_task_free(hisi_hba, task, slot);
1414 	sts = ts->stat;
1415 
1416 	if (task->task_done)
1417 		task->task_done(task);
1418 
1419 	return sts;
1420 }
1421 
1422 /* Interrupts */
1423 static irqreturn_t int_phyup_v1_hw(int irq_no, void *p)
1424 {
1425 	struct hisi_sas_phy *phy = p;
1426 	struct hisi_hba *hisi_hba = phy->hisi_hba;
1427 	struct device *dev = hisi_hba->dev;
1428 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
1429 	int i, phy_no = sas_phy->id;
1430 	u32 irq_value, context, port_id, link_rate;
1431 	u32 *frame_rcvd = (u32 *)sas_phy->frame_rcvd;
1432 	struct sas_identify_frame *id = (struct sas_identify_frame *)frame_rcvd;
1433 	irqreturn_t res = IRQ_HANDLED;
1434 
1435 	irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2);
1436 	if (!(irq_value & CHL_INT2_SL_PHY_ENA_MSK)) {
1437 		dev_dbg(dev, "phyup: irq_value = %x not set enable bit\n",
1438 			irq_value);
1439 		res = IRQ_NONE;
1440 		goto end;
1441 	}
1442 
1443 	context = hisi_sas_read32(hisi_hba, PHY_CONTEXT);
1444 	if (context & 1 << phy_no) {
1445 		dev_err(dev, "phyup: phy%d SATA attached equipment\n",
1446 			phy_no);
1447 		goto end;
1448 	}
1449 
1450 	port_id = (hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA) >> (4 * phy_no))
1451 		  & 0xf;
1452 	if (port_id == 0xf) {
1453 		dev_err(dev, "phyup: phy%d invalid portid\n", phy_no);
1454 		res = IRQ_NONE;
1455 		goto end;
1456 	}
1457 
1458 	for (i = 0; i < 6; i++) {
1459 		u32 idaf = hisi_sas_phy_read32(hisi_hba, phy_no,
1460 					RX_IDAF_DWORD0 + (i * 4));
1461 		frame_rcvd[i] = __swab32(idaf);
1462 	}
1463 
1464 	/* Get the linkrate */
1465 	link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
1466 	link_rate = (link_rate >> (phy_no * 4)) & 0xf;
1467 	sas_phy->linkrate = link_rate;
1468 	sas_phy->oob_mode = SAS_OOB_MODE;
1469 	memcpy(sas_phy->attached_sas_addr,
1470 		&id->sas_addr, SAS_ADDR_SIZE);
1471 	dev_info(dev, "phyup: phy%d link_rate=%d\n",
1472 		 phy_no, link_rate);
1473 	phy->port_id = port_id;
1474 	phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
1475 	phy->phy_type |= PORT_TYPE_SAS;
1476 	phy->phy_attached = 1;
1477 	phy->identify.device_type = id->dev_type;
1478 	phy->frame_rcvd_size =	sizeof(struct sas_identify_frame);
1479 	if (phy->identify.device_type == SAS_END_DEVICE)
1480 		phy->identify.target_port_protocols =
1481 			SAS_PROTOCOL_SSP;
1482 	else if (phy->identify.device_type != SAS_PHY_UNUSED)
1483 		phy->identify.target_port_protocols =
1484 			SAS_PROTOCOL_SMP;
1485 	queue_work(hisi_hba->wq, &phy->phyup_ws);
1486 
1487 end:
1488 	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2,
1489 			     CHL_INT2_SL_PHY_ENA_MSK);
1490 
1491 	if (irq_value & CHL_INT2_SL_PHY_ENA_MSK) {
1492 		u32 chl_int0 = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0);
1493 
1494 		chl_int0 &= ~CHL_INT0_PHYCTRL_NOTRDY_MSK;
1495 		hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, chl_int0);
1496 		hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK, 0x3ce3ee);
1497 	}
1498 
1499 	return res;
1500 }
1501 
1502 static irqreturn_t int_bcast_v1_hw(int irq, void *p)
1503 {
1504 	struct hisi_sas_phy *phy = p;
1505 	struct hisi_hba *hisi_hba = phy->hisi_hba;
1506 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
1507 	struct sas_ha_struct *sha = &hisi_hba->sha;
1508 	struct device *dev = hisi_hba->dev;
1509 	int phy_no = sas_phy->id;
1510 	u32 irq_value;
1511 	irqreturn_t res = IRQ_HANDLED;
1512 
1513 	irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2);
1514 
1515 	if (!(irq_value & CHL_INT2_SL_RX_BC_ACK_MSK)) {
1516 		dev_err(dev, "bcast: irq_value = %x not set enable bit",
1517 			irq_value);
1518 		res = IRQ_NONE;
1519 		goto end;
1520 	}
1521 
1522 	sha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
1523 
1524 end:
1525 	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2,
1526 			     CHL_INT2_SL_RX_BC_ACK_MSK);
1527 
1528 	return res;
1529 }
1530 
1531 static irqreturn_t int_abnormal_v1_hw(int irq, void *p)
1532 {
1533 	struct hisi_sas_phy *phy = p;
1534 	struct hisi_hba *hisi_hba = phy->hisi_hba;
1535 	struct device *dev = hisi_hba->dev;
1536 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
1537 	u32 irq_value, irq_mask_old;
1538 	int phy_no = sas_phy->id;
1539 
1540 	/* mask_int0 */
1541 	irq_mask_old = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0_MSK);
1542 	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK, 0x3fffff);
1543 
1544 	/* read int0 */
1545 	irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0);
1546 
1547 	if (irq_value & CHL_INT0_PHYCTRL_NOTRDY_MSK) {
1548 		u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
1549 
1550 		hisi_sas_phy_down(hisi_hba, phy_no,
1551 				  (phy_state & 1 << phy_no) ? 1 : 0);
1552 	}
1553 
1554 	if (irq_value & CHL_INT0_ID_TIMEOUT_MSK)
1555 		dev_dbg(dev, "abnormal: ID_TIMEOUT phy%d identify timeout\n",
1556 			phy_no);
1557 
1558 	if (irq_value & CHL_INT0_DWS_LOST_MSK)
1559 		dev_dbg(dev, "abnormal: DWS_LOST phy%d dws lost\n", phy_no);
1560 
1561 	if (irq_value & CHL_INT0_SN_FAIL_NGR_MSK)
1562 		dev_dbg(dev, "abnormal: SN_FAIL_NGR phy%d sn fail ngr\n",
1563 			phy_no);
1564 
1565 	if (irq_value & CHL_INT0_SL_IDAF_FAIL_MSK ||
1566 		irq_value & CHL_INT0_SL_OPAF_FAIL_MSK)
1567 		dev_dbg(dev, "abnormal: SL_ID/OPAF_FAIL phy%d check adr frm err\n",
1568 			phy_no);
1569 
1570 	if (irq_value & CHL_INT0_SL_PS_FAIL_OFF)
1571 		dev_dbg(dev, "abnormal: SL_PS_FAIL phy%d fail\n", phy_no);
1572 
1573 	/* write to zero */
1574 	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, irq_value);
1575 
1576 	if (irq_value & CHL_INT0_PHYCTRL_NOTRDY_MSK)
1577 		hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK,
1578 				0x3fffff & ~CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK);
1579 	else
1580 		hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK,
1581 				irq_mask_old);
1582 
1583 	return IRQ_HANDLED;
1584 }
1585 
1586 static irqreturn_t cq_interrupt_v1_hw(int irq, void *p)
1587 {
1588 	struct hisi_sas_cq *cq = p;
1589 	struct hisi_hba *hisi_hba = cq->hisi_hba;
1590 	struct hisi_sas_slot *slot;
1591 	int queue = cq->id;
1592 	struct hisi_sas_complete_v1_hdr *complete_queue =
1593 			(struct hisi_sas_complete_v1_hdr *)
1594 			hisi_hba->complete_hdr[queue];
1595 	u32 irq_value, rd_point = cq->rd_point, wr_point;
1596 
1597 	spin_lock(&hisi_hba->lock);
1598 	irq_value = hisi_sas_read32(hisi_hba, OQ_INT_SRC);
1599 
1600 	hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
1601 	wr_point = hisi_sas_read32(hisi_hba,
1602 			COMPL_Q_0_WR_PTR + (0x14 * queue));
1603 
1604 	while (rd_point != wr_point) {
1605 		struct hisi_sas_complete_v1_hdr *complete_hdr;
1606 		int idx;
1607 		u32 cmplt_hdr_data;
1608 
1609 		complete_hdr = &complete_queue[rd_point];
1610 		cmplt_hdr_data = cpu_to_le32(complete_hdr->data);
1611 		idx = (cmplt_hdr_data & CMPLT_HDR_IPTT_MSK) >>
1612 		      CMPLT_HDR_IPTT_OFF;
1613 		slot = &hisi_hba->slot_info[idx];
1614 
1615 		/* The completion queue and queue slot index are not
1616 		 * necessarily the same as the delivery queue and
1617 		 * queue slot index.
1618 		 */
1619 		slot->cmplt_queue_slot = rd_point;
1620 		slot->cmplt_queue = queue;
1621 		slot_complete_v1_hw(hisi_hba, slot);
1622 
1623 		if (++rd_point >= HISI_SAS_QUEUE_SLOTS)
1624 			rd_point = 0;
1625 	}
1626 
1627 	/* update rd_point */
1628 	cq->rd_point = rd_point;
1629 	hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
1630 	spin_unlock(&hisi_hba->lock);
1631 
1632 	return IRQ_HANDLED;
1633 }
1634 
1635 static irqreturn_t fatal_ecc_int_v1_hw(int irq, void *p)
1636 {
1637 	struct hisi_hba *hisi_hba = p;
1638 	struct device *dev = hisi_hba->dev;
1639 	u32 ecc_int = hisi_sas_read32(hisi_hba, SAS_ECC_INTR);
1640 
1641 	if (ecc_int & SAS_ECC_INTR_DQ_ECC1B_MSK) {
1642 		u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR);
1643 
1644 		panic("%s: Fatal DQ 1b ECC interrupt (0x%x)\n",
1645 		      dev_name(dev), ecc_err);
1646 	}
1647 
1648 	if (ecc_int & SAS_ECC_INTR_DQ_ECCBAD_MSK) {
1649 		u32 addr = (hisi_sas_read32(hisi_hba, HGC_DQ_ECC_ADDR) &
1650 				HGC_DQ_ECC_ADDR_BAD_MSK) >>
1651 				HGC_DQ_ECC_ADDR_BAD_OFF;
1652 
1653 		panic("%s: Fatal DQ RAM ECC interrupt @ 0x%08x\n",
1654 		      dev_name(dev), addr);
1655 	}
1656 
1657 	if (ecc_int & SAS_ECC_INTR_IOST_ECC1B_MSK) {
1658 		u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR);
1659 
1660 		panic("%s: Fatal IOST 1b ECC interrupt (0x%x)\n",
1661 		      dev_name(dev), ecc_err);
1662 	}
1663 
1664 	if (ecc_int & SAS_ECC_INTR_IOST_ECCBAD_MSK) {
1665 		u32 addr = (hisi_sas_read32(hisi_hba, HGC_IOST_ECC_ADDR) &
1666 				HGC_IOST_ECC_ADDR_BAD_MSK) >>
1667 				HGC_IOST_ECC_ADDR_BAD_OFF;
1668 
1669 		panic("%s: Fatal IOST RAM ECC interrupt @ 0x%08x\n",
1670 		      dev_name(dev), addr);
1671 	}
1672 
1673 	if (ecc_int & SAS_ECC_INTR_ITCT_ECCBAD_MSK) {
1674 		u32 addr = (hisi_sas_read32(hisi_hba, HGC_ITCT_ECC_ADDR) &
1675 				HGC_ITCT_ECC_ADDR_BAD_MSK) >>
1676 				HGC_ITCT_ECC_ADDR_BAD_OFF;
1677 
1678 		panic("%s: Fatal TCT RAM ECC interrupt @ 0x%08x\n",
1679 		      dev_name(dev), addr);
1680 	}
1681 
1682 	if (ecc_int & SAS_ECC_INTR_ITCT_ECC1B_MSK) {
1683 		u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR);
1684 
1685 		panic("%s: Fatal ITCT 1b ECC interrupt (0x%x)\n",
1686 		      dev_name(dev), ecc_err);
1687 	}
1688 
1689 	hisi_sas_write32(hisi_hba, SAS_ECC_INTR, ecc_int | 0x3f);
1690 
1691 	return IRQ_HANDLED;
1692 }
1693 
1694 static irqreturn_t fatal_axi_int_v1_hw(int irq, void *p)
1695 {
1696 	struct hisi_hba *hisi_hba = p;
1697 	struct device *dev = hisi_hba->dev;
1698 	u32 axi_int = hisi_sas_read32(hisi_hba, ENT_INT_SRC2);
1699 	u32 axi_info = hisi_sas_read32(hisi_hba, HGC_AXI_FIFO_ERR_INFO);
1700 
1701 	if (axi_int & ENT_INT_SRC2_DQ_CFG_ERR_MSK)
1702 		panic("%s: Fatal DQ_CFG_ERR interrupt (0x%x)\n",
1703 		      dev_name(dev), axi_info);
1704 
1705 	if (axi_int & ENT_INT_SRC2_CQ_CFG_ERR_MSK)
1706 		panic("%s: Fatal CQ_CFG_ERR interrupt (0x%x)\n",
1707 		      dev_name(dev), axi_info);
1708 
1709 	if (axi_int & ENT_INT_SRC2_AXI_WRONG_INT_MSK)
1710 		panic("%s: Fatal AXI_WRONG_INT interrupt (0x%x)\n",
1711 		      dev_name(dev), axi_info);
1712 
1713 	if (axi_int & ENT_INT_SRC2_AXI_OVERLF_INT_MSK)
1714 		panic("%s: Fatal AXI_OVERLF_INT incorrect interrupt (0x%x)\n",
1715 		      dev_name(dev), axi_info);
1716 
1717 	hisi_sas_write32(hisi_hba, ENT_INT_SRC2, axi_int | 0x30000000);
1718 
1719 	return IRQ_HANDLED;
1720 }
1721 
1722 static irq_handler_t phy_interrupts[HISI_SAS_PHY_INT_NR] = {
1723 	int_bcast_v1_hw,
1724 	int_phyup_v1_hw,
1725 	int_abnormal_v1_hw
1726 };
1727 
1728 static irq_handler_t fatal_interrupts[HISI_SAS_MAX_QUEUES] = {
1729 	fatal_ecc_int_v1_hw,
1730 	fatal_axi_int_v1_hw
1731 };
1732 
1733 static int interrupt_init_v1_hw(struct hisi_hba *hisi_hba)
1734 {
1735 	struct platform_device *pdev = hisi_hba->platform_dev;
1736 	struct device *dev = &pdev->dev;
1737 	int i, j, irq, rc, idx;
1738 
1739 	for (i = 0; i < hisi_hba->n_phy; i++) {
1740 		struct hisi_sas_phy *phy = &hisi_hba->phy[i];
1741 
1742 		idx = i * HISI_SAS_PHY_INT_NR;
1743 		for (j = 0; j < HISI_SAS_PHY_INT_NR; j++, idx++) {
1744 			irq = platform_get_irq(pdev, idx);
1745 			if (!irq) {
1746 				dev_err(dev,
1747 					"irq init: fail map phy interrupt %d\n",
1748 					idx);
1749 				return -ENOENT;
1750 			}
1751 
1752 			rc = devm_request_irq(dev, irq, phy_interrupts[j], 0,
1753 					      DRV_NAME " phy", phy);
1754 			if (rc) {
1755 				dev_err(dev, "irq init: could not request "
1756 					"phy interrupt %d, rc=%d\n",
1757 					irq, rc);
1758 				return -ENOENT;
1759 			}
1760 		}
1761 	}
1762 
1763 	idx = hisi_hba->n_phy * HISI_SAS_PHY_INT_NR;
1764 	for (i = 0; i < hisi_hba->queue_count; i++, idx++) {
1765 		irq = platform_get_irq(pdev, idx);
1766 		if (!irq) {
1767 			dev_err(dev, "irq init: could not map cq interrupt %d\n",
1768 				idx);
1769 			return -ENOENT;
1770 		}
1771 
1772 		rc = devm_request_irq(dev, irq, cq_interrupt_v1_hw, 0,
1773 				      DRV_NAME " cq", &hisi_hba->cq[i]);
1774 		if (rc) {
1775 			dev_err(dev, "irq init: could not request cq interrupt %d, rc=%d\n",
1776 				irq, rc);
1777 			return -ENOENT;
1778 		}
1779 	}
1780 
1781 	idx = (hisi_hba->n_phy * HISI_SAS_PHY_INT_NR) + hisi_hba->queue_count;
1782 	for (i = 0; i < HISI_SAS_FATAL_INT_NR; i++, idx++) {
1783 		irq = platform_get_irq(pdev, idx);
1784 		if (!irq) {
1785 			dev_err(dev, "irq init: could not map fatal interrupt %d\n",
1786 				idx);
1787 			return -ENOENT;
1788 		}
1789 
1790 		rc = devm_request_irq(dev, irq, fatal_interrupts[i], 0,
1791 				      DRV_NAME " fatal", hisi_hba);
1792 		if (rc) {
1793 			dev_err(dev,
1794 				"irq init: could not request fatal interrupt %d, rc=%d\n",
1795 				irq, rc);
1796 			return -ENOENT;
1797 		}
1798 	}
1799 
1800 	return 0;
1801 }
1802 
1803 static int interrupt_openall_v1_hw(struct hisi_hba *hisi_hba)
1804 {
1805 	int i;
1806 	u32 val;
1807 
1808 	for (i = 0; i < hisi_hba->n_phy; i++) {
1809 		/* Clear interrupt status */
1810 		val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT0);
1811 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, val);
1812 		val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT1);
1813 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, val);
1814 		val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT2);
1815 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, val);
1816 
1817 		/* Unmask interrupt */
1818 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT0_MSK, 0x3ce3ee);
1819 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0x17fff);
1820 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8000012a);
1821 
1822 		/* bypass chip bug mask abnormal intr */
1823 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT0_MSK,
1824 				0x3fffff & ~CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK);
1825 	}
1826 
1827 	return 0;
1828 }
1829 
1830 static int hisi_sas_v1_init(struct hisi_hba *hisi_hba)
1831 {
1832 	int rc;
1833 
1834 	rc = hw_init_v1_hw(hisi_hba);
1835 	if (rc)
1836 		return rc;
1837 
1838 	rc = interrupt_init_v1_hw(hisi_hba);
1839 	if (rc)
1840 		return rc;
1841 
1842 	rc = interrupt_openall_v1_hw(hisi_hba);
1843 	if (rc)
1844 		return rc;
1845 
1846 	return 0;
1847 }
1848 
1849 static const struct hisi_sas_hw hisi_sas_v1_hw = {
1850 	.hw_init = hisi_sas_v1_init,
1851 	.setup_itct = setup_itct_v1_hw,
1852 	.sl_notify = sl_notify_v1_hw,
1853 	.free_device = free_device_v1_hw,
1854 	.prep_smp = prep_smp_v1_hw,
1855 	.prep_ssp = prep_ssp_v1_hw,
1856 	.get_free_slot = get_free_slot_v1_hw,
1857 	.start_delivery = start_delivery_v1_hw,
1858 	.slot_complete = slot_complete_v1_hw,
1859 	.phys_init = phys_init_v1_hw,
1860 	.phy_start = start_phy_v1_hw,
1861 	.phy_disable = disable_phy_v1_hw,
1862 	.phy_hard_reset = phy_hard_reset_v1_hw,
1863 	.phy_set_linkrate = phy_set_linkrate_v1_hw,
1864 	.phy_get_max_linkrate = phy_get_max_linkrate_v1_hw,
1865 	.get_wideport_bitmap = get_wideport_bitmap_v1_hw,
1866 	.max_command_entries = HISI_SAS_COMMAND_ENTRIES_V1_HW,
1867 	.complete_hdr_size = sizeof(struct hisi_sas_complete_v1_hdr),
1868 };
1869 
1870 static int hisi_sas_v1_probe(struct platform_device *pdev)
1871 {
1872 	return hisi_sas_probe(pdev, &hisi_sas_v1_hw);
1873 }
1874 
1875 static int hisi_sas_v1_remove(struct platform_device *pdev)
1876 {
1877 	return hisi_sas_remove(pdev);
1878 }
1879 
1880 static const struct of_device_id sas_v1_of_match[] = {
1881 	{ .compatible = "hisilicon,hip05-sas-v1",},
1882 	{},
1883 };
1884 MODULE_DEVICE_TABLE(of, sas_v1_of_match);
1885 
1886 static const struct acpi_device_id sas_v1_acpi_match[] = {
1887 	{ "HISI0161", 0 },
1888 	{ }
1889 };
1890 
1891 MODULE_DEVICE_TABLE(acpi, sas_v1_acpi_match);
1892 
1893 static struct platform_driver hisi_sas_v1_driver = {
1894 	.probe = hisi_sas_v1_probe,
1895 	.remove = hisi_sas_v1_remove,
1896 	.driver = {
1897 		.name = DRV_NAME,
1898 		.of_match_table = sas_v1_of_match,
1899 		.acpi_match_table = ACPI_PTR(sas_v1_acpi_match),
1900 	},
1901 };
1902 
1903 module_platform_driver(hisi_sas_v1_driver);
1904 
1905 MODULE_LICENSE("GPL");
1906 MODULE_AUTHOR("John Garry <john.garry@huawei.com>");
1907 MODULE_DESCRIPTION("HISILICON SAS controller v1 hw driver");
1908 MODULE_ALIAS("platform:" DRV_NAME);
1909