xref: /openbmc/linux/drivers/scsi/mvsas/mv_94xx.c (revision b9b77222)
1 /*
2  * Marvell 88SE94xx hardware specific
3  *
4  * Copyright 2007 Red Hat, Inc.
5  * Copyright 2008 Marvell. <kewei@marvell.com>
6  * Copyright 2009-2011 Marvell. <yuxiangl@marvell.com>
7  *
8  * This file is licensed under GPLv2.
9  *
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License as
12  * published by the Free Software Foundation; version 2 of the
13  * License.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18  * General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
23  * USA
24 */
25 
26 #include "mv_sas.h"
27 #include "mv_94xx.h"
28 #include "mv_chips.h"
29 
30 static void mvs_94xx_detect_porttype(struct mvs_info *mvi, int i)
31 {
32 	u32 reg;
33 	struct mvs_phy *phy = &mvi->phy[i];
34 	u32 phy_status;
35 
36 	mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE3);
37 	reg = mvs_read_port_vsr_data(mvi, i);
38 	phy_status = ((reg & 0x3f0000) >> 16) & 0xff;
39 	phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
40 	switch (phy_status) {
41 	case 0x10:
42 		phy->phy_type |= PORT_TYPE_SAS;
43 		break;
44 	case 0x1d:
45 	default:
46 		phy->phy_type |= PORT_TYPE_SATA;
47 		break;
48 	}
49 }
50 
51 static void set_phy_tuning(struct mvs_info *mvi, int phy_id,
52 			   struct phy_tuning phy_tuning)
53 {
54 	u32 tmp, setting_0 = 0, setting_1 = 0;
55 	u8 i;
56 
57 	/* Remap information for B0 chip:
58 	*
59 	* R0Ch -> R118h[15:0] (Adapted DFE F3 - F5 coefficient)
60 	* R0Dh -> R118h[31:16] (Generation 1 Setting 0)
61 	* R0Eh -> R11Ch[15:0]  (Generation 1 Setting 1)
62 	* R0Fh -> R11Ch[31:16] (Generation 2 Setting 0)
63 	* R10h -> R120h[15:0]  (Generation 2 Setting 1)
64 	* R11h -> R120h[31:16] (Generation 3 Setting 0)
65 	* R12h -> R124h[15:0]  (Generation 3 Setting 1)
66 	* R13h -> R124h[31:16] (Generation 4 Setting 0 (Reserved))
67 	*/
68 
69 	/* A0 has a different set of registers */
70 	if (mvi->pdev->revision == VANIR_A0_REV)
71 		return;
72 
73 	for (i = 0; i < 3; i++) {
74 		/* loop 3 times, set Gen 1, Gen 2, Gen 3 */
75 		switch (i) {
76 		case 0:
77 			setting_0 = GENERATION_1_SETTING;
78 			setting_1 = GENERATION_1_2_SETTING;
79 			break;
80 		case 1:
81 			setting_0 = GENERATION_1_2_SETTING;
82 			setting_1 = GENERATION_2_3_SETTING;
83 			break;
84 		case 2:
85 			setting_0 = GENERATION_2_3_SETTING;
86 			setting_1 = GENERATION_3_4_SETTING;
87 			break;
88 		}
89 
90 		/* Set:
91 		*
92 		* Transmitter Emphasis Enable
93 		* Transmitter Emphasis Amplitude
94 		* Transmitter Amplitude
95 		*/
96 		mvs_write_port_vsr_addr(mvi, phy_id, setting_0);
97 		tmp = mvs_read_port_vsr_data(mvi, phy_id);
98 		tmp &= ~(0xFBE << 16);
99 		tmp |= (((phy_tuning.trans_emp_en << 11) |
100 			(phy_tuning.trans_emp_amp << 7) |
101 			(phy_tuning.trans_amp << 1)) << 16);
102 		mvs_write_port_vsr_data(mvi, phy_id, tmp);
103 
104 		/* Set Transmitter Amplitude Adjust */
105 		mvs_write_port_vsr_addr(mvi, phy_id, setting_1);
106 		tmp = mvs_read_port_vsr_data(mvi, phy_id);
107 		tmp &= ~(0xC000);
108 		tmp |= (phy_tuning.trans_amp_adj << 14);
109 		mvs_write_port_vsr_data(mvi, phy_id, tmp);
110 	}
111 }
112 
113 static void set_phy_ffe_tuning(struct mvs_info *mvi, int phy_id,
114 			       struct ffe_control ffe)
115 {
116 	u32 tmp;
117 
118 	/* Don't run this if A0/B0 */
119 	if ((mvi->pdev->revision == VANIR_A0_REV)
120 		|| (mvi->pdev->revision == VANIR_B0_REV))
121 		return;
122 
123 	/* FFE Resistor and Capacitor */
124 	/* R10Ch DFE Resolution Control/Squelch and FFE Setting
125 	 *
126 	 * FFE_FORCE            [7]
127 	 * FFE_RES_SEL          [6:4]
128 	 * FFE_CAP_SEL          [3:0]
129 	 */
130 	mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_FFE_CONTROL);
131 	tmp = mvs_read_port_vsr_data(mvi, phy_id);
132 	tmp &= ~0xFF;
133 
134 	/* Read from HBA_Info_Page */
135 	tmp |= ((0x1 << 7) |
136 		(ffe.ffe_rss_sel << 4) |
137 		(ffe.ffe_cap_sel << 0));
138 
139 	mvs_write_port_vsr_data(mvi, phy_id, tmp);
140 
141 	/* R064h PHY Mode Register 1
142 	 *
143 	 * DFE_DIS		18
144 	 */
145 	mvs_write_port_vsr_addr(mvi, phy_id, VSR_REF_CLOCK_CRTL);
146 	tmp = mvs_read_port_vsr_data(mvi, phy_id);
147 	tmp &= ~0x40001;
148 	/* Hard coding */
149 	/* No defines in HBA_Info_Page */
150 	tmp |= (0 << 18);
151 	mvs_write_port_vsr_data(mvi, phy_id, tmp);
152 
153 	/* R110h DFE F0-F1 Coefficient Control/DFE Update Control
154 	 *
155 	 * DFE_UPDATE_EN        [11:6]
156 	 * DFE_FX_FORCE         [5:0]
157 	 */
158 	mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_DFE_UPDATE_CRTL);
159 	tmp = mvs_read_port_vsr_data(mvi, phy_id);
160 	tmp &= ~0xFFF;
161 	/* Hard coding */
162 	/* No defines in HBA_Info_Page */
163 	tmp |= ((0x3F << 6) | (0x0 << 0));
164 	mvs_write_port_vsr_data(mvi, phy_id, tmp);
165 
166 	/* R1A0h Interface and Digital Reference Clock Control/Reserved_50h
167 	 *
168 	 * FFE_TRAIN_EN         3
169 	 */
170 	mvs_write_port_vsr_addr(mvi, phy_id, VSR_REF_CLOCK_CRTL);
171 	tmp = mvs_read_port_vsr_data(mvi, phy_id);
172 	tmp &= ~0x8;
173 	/* Hard coding */
174 	/* No defines in HBA_Info_Page */
175 	tmp |= (0 << 3);
176 	mvs_write_port_vsr_data(mvi, phy_id, tmp);
177 }
178 
179 /*Notice: this function must be called when phy is disabled*/
180 static void set_phy_rate(struct mvs_info *mvi, int phy_id, u8 rate)
181 {
182 	union reg_phy_cfg phy_cfg, phy_cfg_tmp;
183 	mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_MODE2);
184 	phy_cfg_tmp.v = mvs_read_port_vsr_data(mvi, phy_id);
185 	phy_cfg.v = 0;
186 	phy_cfg.u.disable_phy = phy_cfg_tmp.u.disable_phy;
187 	phy_cfg.u.sas_support = 1;
188 	phy_cfg.u.sata_support = 1;
189 	phy_cfg.u.sata_host_mode = 1;
190 
191 	switch (rate) {
192 	case 0x0:
193 		/* support 1.5 Gbps */
194 		phy_cfg.u.speed_support = 1;
195 		phy_cfg.u.snw_3_support = 0;
196 		phy_cfg.u.tx_lnk_parity = 1;
197 		phy_cfg.u.tx_spt_phs_lnk_rate = 0x30;
198 		break;
199 	case 0x1:
200 
201 		/* support 1.5, 3.0 Gbps */
202 		phy_cfg.u.speed_support = 3;
203 		phy_cfg.u.tx_spt_phs_lnk_rate = 0x3c;
204 		phy_cfg.u.tx_lgcl_lnk_rate = 0x08;
205 		break;
206 	case 0x2:
207 	default:
208 		/* support 1.5, 3.0, 6.0 Gbps */
209 		phy_cfg.u.speed_support = 7;
210 		phy_cfg.u.snw_3_support = 1;
211 		phy_cfg.u.tx_lnk_parity = 1;
212 		phy_cfg.u.tx_spt_phs_lnk_rate = 0x3f;
213 		phy_cfg.u.tx_lgcl_lnk_rate = 0x09;
214 		break;
215 	}
216 	mvs_write_port_vsr_data(mvi, phy_id, phy_cfg.v);
217 }
218 
219 static void mvs_94xx_config_reg_from_hba(struct mvs_info *mvi, int phy_id)
220 {
221 	u32 temp;
222 	temp = (u32)(*(u32 *)&mvi->hba_info_param.phy_tuning[phy_id]);
223 	if (temp == 0xFFFFFFFFL) {
224 		mvi->hba_info_param.phy_tuning[phy_id].trans_emp_amp = 0x6;
225 		mvi->hba_info_param.phy_tuning[phy_id].trans_amp = 0x1A;
226 		mvi->hba_info_param.phy_tuning[phy_id].trans_amp_adj = 0x3;
227 	}
228 
229 	temp = (u8)(*(u8 *)&mvi->hba_info_param.ffe_ctl[phy_id]);
230 	if (temp == 0xFFL) {
231 		switch (mvi->pdev->revision) {
232 		case VANIR_A0_REV:
233 		case VANIR_B0_REV:
234 			mvi->hba_info_param.ffe_ctl[phy_id].ffe_rss_sel = 0x7;
235 			mvi->hba_info_param.ffe_ctl[phy_id].ffe_cap_sel = 0x7;
236 			break;
237 		case VANIR_C0_REV:
238 		case VANIR_C1_REV:
239 		case VANIR_C2_REV:
240 		default:
241 			mvi->hba_info_param.ffe_ctl[phy_id].ffe_rss_sel = 0x7;
242 			mvi->hba_info_param.ffe_ctl[phy_id].ffe_cap_sel = 0xC;
243 			break;
244 		}
245 	}
246 
247 	temp = (u8)(*(u8 *)&mvi->hba_info_param.phy_rate[phy_id]);
248 	if (temp == 0xFFL)
249 		/*set default phy_rate = 6Gbps*/
250 		mvi->hba_info_param.phy_rate[phy_id] = 0x2;
251 
252 	set_phy_tuning(mvi, phy_id,
253 		mvi->hba_info_param.phy_tuning[phy_id]);
254 	set_phy_ffe_tuning(mvi, phy_id,
255 		mvi->hba_info_param.ffe_ctl[phy_id]);
256 	set_phy_rate(mvi, phy_id,
257 		mvi->hba_info_param.phy_rate[phy_id]);
258 }
259 
260 static void mvs_94xx_enable_xmt(struct mvs_info *mvi, int phy_id)
261 {
262 	void __iomem *regs = mvi->regs;
263 	u32 tmp;
264 
265 	tmp = mr32(MVS_PCS);
266 	tmp |= 1 << (phy_id + PCS_EN_PORT_XMT_SHIFT2);
267 	mw32(MVS_PCS, tmp);
268 }
269 
270 static void mvs_94xx_phy_reset(struct mvs_info *mvi, u32 phy_id, int hard)
271 {
272 	u32 tmp;
273 	u32 delay = 5000;
274 	if (hard == MVS_PHY_TUNE) {
275 		mvs_write_port_cfg_addr(mvi, phy_id, PHYR_SATA_CTL);
276 		tmp = mvs_read_port_cfg_data(mvi, phy_id);
277 		mvs_write_port_cfg_data(mvi, phy_id, tmp|0x20000000);
278 		mvs_write_port_cfg_data(mvi, phy_id, tmp|0x100000);
279 		return;
280 	}
281 	tmp = mvs_read_port_irq_stat(mvi, phy_id);
282 	tmp &= ~PHYEV_RDY_CH;
283 	mvs_write_port_irq_stat(mvi, phy_id, tmp);
284 	if (hard) {
285 		tmp = mvs_read_phy_ctl(mvi, phy_id);
286 		tmp |= PHY_RST_HARD;
287 		mvs_write_phy_ctl(mvi, phy_id, tmp);
288 		do {
289 			tmp = mvs_read_phy_ctl(mvi, phy_id);
290 			udelay(10);
291 			delay--;
292 		} while ((tmp & PHY_RST_HARD) && delay);
293 		if (!delay)
294 			mv_dprintk("phy hard reset failed.\n");
295 	} else {
296 		tmp = mvs_read_phy_ctl(mvi, phy_id);
297 		tmp |= PHY_RST;
298 		mvs_write_phy_ctl(mvi, phy_id, tmp);
299 	}
300 }
301 
302 static void mvs_94xx_phy_disable(struct mvs_info *mvi, u32 phy_id)
303 {
304 	u32 tmp;
305 	mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_MODE2);
306 	tmp = mvs_read_port_vsr_data(mvi, phy_id);
307 	mvs_write_port_vsr_data(mvi, phy_id, tmp | 0x00800000);
308 }
309 
310 static void mvs_94xx_phy_enable(struct mvs_info *mvi, u32 phy_id)
311 {
312 	u32 tmp;
313 	u8 revision = 0;
314 
315 	revision = mvi->pdev->revision;
316 	if (revision == VANIR_A0_REV) {
317 		mvs_write_port_vsr_addr(mvi, phy_id, CMD_HOST_RD_DATA);
318 		mvs_write_port_vsr_data(mvi, phy_id, 0x8300ffc1);
319 	}
320 	if (revision == VANIR_B0_REV) {
321 		mvs_write_port_vsr_addr(mvi, phy_id, CMD_APP_MEM_CTL);
322 		mvs_write_port_vsr_data(mvi, phy_id, 0x08001006);
323 		mvs_write_port_vsr_addr(mvi, phy_id, CMD_HOST_RD_DATA);
324 		mvs_write_port_vsr_data(mvi, phy_id, 0x0000705f);
325 	}
326 
327 	mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_MODE2);
328 	tmp = mvs_read_port_vsr_data(mvi, phy_id);
329 	tmp |= bit(0);
330 	mvs_write_port_vsr_data(mvi, phy_id, tmp & 0xfd7fffff);
331 }
332 
333 static void mvs_94xx_sgpio_init(struct mvs_info *mvi)
334 {
335 	void __iomem *regs = mvi->regs_ex - 0x10200;
336 	u32 tmp;
337 
338 	tmp = mr32(MVS_HST_CHIP_CONFIG);
339 	tmp |= 0x100;
340 	mw32(MVS_HST_CHIP_CONFIG, tmp);
341 
342 	mw32(MVS_SGPIO_CTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
343 		MVS_SGPIO_CTRL_SDOUT_AUTO << MVS_SGPIO_CTRL_SDOUT_SHIFT);
344 
345 	mw32(MVS_SGPIO_CFG1 + MVS_SGPIO_HOST_OFFSET * mvi->id,
346 		8 << MVS_SGPIO_CFG1_LOWA_SHIFT |
347 		8 << MVS_SGPIO_CFG1_HIA_SHIFT |
348 		4 << MVS_SGPIO_CFG1_LOWB_SHIFT |
349 		4 << MVS_SGPIO_CFG1_HIB_SHIFT |
350 		2 << MVS_SGPIO_CFG1_MAXACTON_SHIFT |
351 		1 << MVS_SGPIO_CFG1_FORCEACTOFF_SHIFT
352 	);
353 
354 	mw32(MVS_SGPIO_CFG2 + MVS_SGPIO_HOST_OFFSET * mvi->id,
355 		(300000 / 100) << MVS_SGPIO_CFG2_CLK_SHIFT | /* 100kHz clock */
356 		66 << MVS_SGPIO_CFG2_BLINK_SHIFT /* (66 * 0,121 Hz?)*/
357 	);
358 
359 	mw32(MVS_SGPIO_CFG0 + MVS_SGPIO_HOST_OFFSET * mvi->id,
360 		MVS_SGPIO_CFG0_ENABLE |
361 		MVS_SGPIO_CFG0_BLINKA |
362 		MVS_SGPIO_CFG0_BLINKB |
363 		/* 3*4 data bits / PDU */
364 		(12 - 1) << MVS_SGPIO_CFG0_AUT_BITLEN_SHIFT
365 	);
366 
367 	mw32(MVS_SGPIO_DCTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
368 		DEFAULT_SGPIO_BITS);
369 
370 	mw32(MVS_SGPIO_DSRC + MVS_SGPIO_HOST_OFFSET * mvi->id,
371 		((mvi->id * 4) + 3) << (8 * 3) |
372 		((mvi->id * 4) + 2) << (8 * 2) |
373 		((mvi->id * 4) + 1) << (8 * 1) |
374 		((mvi->id * 4) + 0) << (8 * 0));
375 
376 }
377 
378 static int mvs_94xx_init(struct mvs_info *mvi)
379 {
380 	void __iomem *regs = mvi->regs;
381 	int i;
382 	u32 tmp, cctl;
383 	u8 revision;
384 
385 	revision = mvi->pdev->revision;
386 	mvs_show_pcie_usage(mvi);
387 	if (mvi->flags & MVF_FLAG_SOC) {
388 		tmp = mr32(MVS_PHY_CTL);
389 		tmp &= ~PCTL_PWR_OFF;
390 		tmp |= PCTL_PHY_DSBL;
391 		mw32(MVS_PHY_CTL, tmp);
392 	}
393 
394 	/* Init Chip */
395 	/* make sure RST is set; HBA_RST /should/ have done that for us */
396 	cctl = mr32(MVS_CTL) & 0xFFFF;
397 	if (cctl & CCTL_RST)
398 		cctl &= ~CCTL_RST;
399 	else
400 		mw32_f(MVS_CTL, cctl | CCTL_RST);
401 
402 	if (mvi->flags & MVF_FLAG_SOC) {
403 		tmp = mr32(MVS_PHY_CTL);
404 		tmp &= ~PCTL_PWR_OFF;
405 		tmp |= PCTL_COM_ON;
406 		tmp &= ~PCTL_PHY_DSBL;
407 		tmp |= PCTL_LINK_RST;
408 		mw32(MVS_PHY_CTL, tmp);
409 		msleep(100);
410 		tmp &= ~PCTL_LINK_RST;
411 		mw32(MVS_PHY_CTL, tmp);
412 		msleep(100);
413 	}
414 
415 	/* disable Multiplexing, enable phy implemented */
416 	mw32(MVS_PORTS_IMP, 0xFF);
417 
418 	if (revision == VANIR_A0_REV) {
419 		mw32(MVS_PA_VSR_ADDR, CMD_CMWK_OOB_DET);
420 		mw32(MVS_PA_VSR_PORT, 0x00018080);
421 	}
422 	mw32(MVS_PA_VSR_ADDR, VSR_PHY_MODE2);
423 	if (revision == VANIR_A0_REV || revision == VANIR_B0_REV)
424 		/* set 6G/3G/1.5G, multiplexing, without SSC */
425 		mw32(MVS_PA_VSR_PORT, 0x0084d4fe);
426 	else
427 		/* set 6G/3G/1.5G, multiplexing, with and without SSC */
428 		mw32(MVS_PA_VSR_PORT, 0x0084fffe);
429 
430 	if (revision == VANIR_B0_REV) {
431 		mw32(MVS_PA_VSR_ADDR, CMD_APP_MEM_CTL);
432 		mw32(MVS_PA_VSR_PORT, 0x08001006);
433 		mw32(MVS_PA_VSR_ADDR, CMD_HOST_RD_DATA);
434 		mw32(MVS_PA_VSR_PORT, 0x0000705f);
435 	}
436 
437 	/* reset control */
438 	mw32(MVS_PCS, 0);		/* MVS_PCS */
439 	mw32(MVS_STP_REG_SET_0, 0);
440 	mw32(MVS_STP_REG_SET_1, 0);
441 
442 	/* init phys */
443 	mvs_phy_hacks(mvi);
444 
445 	/* disable non data frame retry */
446 	tmp = mvs_cr32(mvi, CMD_SAS_CTL1);
447 	if ((revision == VANIR_A0_REV) ||
448 		(revision == VANIR_B0_REV) ||
449 		(revision == VANIR_C0_REV)) {
450 		tmp &= ~0xffff;
451 		tmp |= 0x007f;
452 		mvs_cw32(mvi, CMD_SAS_CTL1, tmp);
453 	}
454 
455 	/* set LED blink when IO*/
456 	mw32(MVS_PA_VSR_ADDR, VSR_PHY_ACT_LED);
457 	tmp = mr32(MVS_PA_VSR_PORT);
458 	tmp &= 0xFFFF00FF;
459 	tmp |= 0x00003300;
460 	mw32(MVS_PA_VSR_PORT, tmp);
461 
462 	mw32(MVS_CMD_LIST_LO, mvi->slot_dma);
463 	mw32(MVS_CMD_LIST_HI, (mvi->slot_dma >> 16) >> 16);
464 
465 	mw32(MVS_RX_FIS_LO, mvi->rx_fis_dma);
466 	mw32(MVS_RX_FIS_HI, (mvi->rx_fis_dma >> 16) >> 16);
467 
468 	mw32(MVS_TX_CFG, MVS_CHIP_SLOT_SZ);
469 	mw32(MVS_TX_LO, mvi->tx_dma);
470 	mw32(MVS_TX_HI, (mvi->tx_dma >> 16) >> 16);
471 
472 	mw32(MVS_RX_CFG, MVS_RX_RING_SZ);
473 	mw32(MVS_RX_LO, mvi->rx_dma);
474 	mw32(MVS_RX_HI, (mvi->rx_dma >> 16) >> 16);
475 
476 	for (i = 0; i < mvi->chip->n_phy; i++) {
477 		mvs_94xx_phy_disable(mvi, i);
478 		/* set phy local SAS address */
479 		mvs_set_sas_addr(mvi, i, CONFIG_ID_FRAME3, CONFIG_ID_FRAME4,
480 						cpu_to_le64(mvi->phy[i].dev_sas_addr));
481 
482 		mvs_94xx_enable_xmt(mvi, i);
483 		mvs_94xx_config_reg_from_hba(mvi, i);
484 		mvs_94xx_phy_enable(mvi, i);
485 
486 		mvs_94xx_phy_reset(mvi, i, PHY_RST_HARD);
487 		msleep(500);
488 		mvs_94xx_detect_porttype(mvi, i);
489 	}
490 
491 	if (mvi->flags & MVF_FLAG_SOC) {
492 		/* set select registers */
493 		writel(0x0E008000, regs + 0x000);
494 		writel(0x59000008, regs + 0x004);
495 		writel(0x20, regs + 0x008);
496 		writel(0x20, regs + 0x00c);
497 		writel(0x20, regs + 0x010);
498 		writel(0x20, regs + 0x014);
499 		writel(0x20, regs + 0x018);
500 		writel(0x20, regs + 0x01c);
501 	}
502 	for (i = 0; i < mvi->chip->n_phy; i++) {
503 		/* clear phy int status */
504 		tmp = mvs_read_port_irq_stat(mvi, i);
505 		tmp &= ~PHYEV_SIG_FIS;
506 		mvs_write_port_irq_stat(mvi, i, tmp);
507 
508 		/* set phy int mask */
509 		tmp = PHYEV_RDY_CH | PHYEV_BROAD_CH |
510 			PHYEV_ID_DONE  | PHYEV_DCDR_ERR | PHYEV_CRC_ERR ;
511 		mvs_write_port_irq_mask(mvi, i, tmp);
512 
513 		msleep(100);
514 		mvs_update_phyinfo(mvi, i, 1);
515 	}
516 
517 	/* little endian for open address and command table, etc. */
518 	cctl = mr32(MVS_CTL);
519 	cctl |= CCTL_ENDIAN_CMD;
520 	cctl &= ~CCTL_ENDIAN_OPEN;
521 	cctl |= CCTL_ENDIAN_RSP;
522 	mw32_f(MVS_CTL, cctl);
523 
524 	/* reset CMD queue */
525 	tmp = mr32(MVS_PCS);
526 	tmp |= PCS_CMD_RST;
527 	tmp &= ~PCS_SELF_CLEAR;
528 	mw32(MVS_PCS, tmp);
529 	/*
530 	 * the max count is 0x1ff, while our max slot is 0x200,
531 	 * it will make count 0.
532 	 */
533 	tmp = 0;
534 	if (MVS_CHIP_SLOT_SZ > 0x1ff)
535 		mw32(MVS_INT_COAL, 0x1ff | COAL_EN);
536 	else
537 		mw32(MVS_INT_COAL, MVS_CHIP_SLOT_SZ | COAL_EN);
538 
539 	/* default interrupt coalescing time is 128us */
540 	tmp = 0x10000 | interrupt_coalescing;
541 	mw32(MVS_INT_COAL_TMOUT, tmp);
542 
543 	/* ladies and gentlemen, start your engines */
544 	mw32(MVS_TX_CFG, 0);
545 	mw32(MVS_TX_CFG, MVS_CHIP_SLOT_SZ | TX_EN);
546 	mw32(MVS_RX_CFG, MVS_RX_RING_SZ | RX_EN);
547 	/* enable CMD/CMPL_Q/RESP mode */
548 	mw32(MVS_PCS, PCS_SATA_RETRY_2 | PCS_FIS_RX_EN |
549 		PCS_CMD_EN | PCS_CMD_STOP_ERR);
550 
551 	/* enable completion queue interrupt */
552 	tmp = (CINT_PORT_MASK | CINT_DONE | CINT_MEM | CINT_SRS | CINT_CI_STOP |
553 		CINT_DMA_PCIE | CINT_NON_SPEC_NCQ_ERROR);
554 	tmp |= CINT_PHY_MASK;
555 	mw32(MVS_INT_MASK, tmp);
556 
557 	tmp = mvs_cr32(mvi, CMD_LINK_TIMER);
558 	tmp |= 0xFFFF0000;
559 	mvs_cw32(mvi, CMD_LINK_TIMER, tmp);
560 
561 	/* tune STP performance */
562 	tmp = 0x003F003F;
563 	mvs_cw32(mvi, CMD_PL_TIMER, tmp);
564 
565 	/* This can improve expander large block size seq write performance */
566 	tmp = mvs_cr32(mvi, CMD_PORT_LAYER_TIMER1);
567 	tmp |= 0xFFFF007F;
568 	mvs_cw32(mvi, CMD_PORT_LAYER_TIMER1, tmp);
569 
570 	/* change the connection open-close behavior (bit 9)
571 	 * set bit8 to 1 for performance tuning */
572 	tmp = mvs_cr32(mvi, CMD_SL_MODE0);
573 	tmp |= 0x00000300;
574 	/* set bit0 to 0 to enable retry for no_dest reject case */
575 	tmp &= 0xFFFFFFFE;
576 	mvs_cw32(mvi, CMD_SL_MODE0, tmp);
577 
578 	/* Enable SRS interrupt */
579 	mw32(MVS_INT_MASK_SRS_0, 0xFFFF);
580 
581 	mvs_94xx_sgpio_init(mvi);
582 
583 	return 0;
584 }
585 
586 static int mvs_94xx_ioremap(struct mvs_info *mvi)
587 {
588 	if (!mvs_ioremap(mvi, 2, -1)) {
589 		mvi->regs_ex = mvi->regs + 0x10200;
590 		mvi->regs += 0x20000;
591 		if (mvi->id == 1)
592 			mvi->regs += 0x4000;
593 		return 0;
594 	}
595 	return -1;
596 }
597 
598 static void mvs_94xx_iounmap(struct mvs_info *mvi)
599 {
600 	if (mvi->regs) {
601 		mvi->regs -= 0x20000;
602 		if (mvi->id == 1)
603 			mvi->regs -= 0x4000;
604 		mvs_iounmap(mvi->regs);
605 	}
606 }
607 
608 static void mvs_94xx_interrupt_enable(struct mvs_info *mvi)
609 {
610 	void __iomem *regs = mvi->regs_ex;
611 	u32 tmp;
612 
613 	tmp = mr32(MVS_GBL_CTL);
614 	tmp |= (MVS_IRQ_SAS_A | MVS_IRQ_SAS_B);
615 	mw32(MVS_GBL_INT_STAT, tmp);
616 	writel(tmp, regs + 0x0C);
617 	writel(tmp, regs + 0x10);
618 	writel(tmp, regs + 0x14);
619 	writel(tmp, regs + 0x18);
620 	mw32(MVS_GBL_CTL, tmp);
621 }
622 
623 static void mvs_94xx_interrupt_disable(struct mvs_info *mvi)
624 {
625 	void __iomem *regs = mvi->regs_ex;
626 	u32 tmp;
627 
628 	tmp = mr32(MVS_GBL_CTL);
629 
630 	tmp &= ~(MVS_IRQ_SAS_A | MVS_IRQ_SAS_B);
631 	mw32(MVS_GBL_INT_STAT, tmp);
632 	writel(tmp, regs + 0x0C);
633 	writel(tmp, regs + 0x10);
634 	writel(tmp, regs + 0x14);
635 	writel(tmp, regs + 0x18);
636 	mw32(MVS_GBL_CTL, tmp);
637 }
638 
639 static u32 mvs_94xx_isr_status(struct mvs_info *mvi, int irq)
640 {
641 	void __iomem *regs = mvi->regs_ex;
642 	u32 stat = 0;
643 	if (!(mvi->flags & MVF_FLAG_SOC)) {
644 		stat = mr32(MVS_GBL_INT_STAT);
645 
646 		if (!(stat & (MVS_IRQ_SAS_A | MVS_IRQ_SAS_B)))
647 			return 0;
648 	}
649 	return stat;
650 }
651 
652 static irqreturn_t mvs_94xx_isr(struct mvs_info *mvi, int irq, u32 stat)
653 {
654 	void __iomem *regs = mvi->regs;
655 
656 	if (((stat & MVS_IRQ_SAS_A) && mvi->id == 0) ||
657 			((stat & MVS_IRQ_SAS_B) && mvi->id == 1)) {
658 		mw32_f(MVS_INT_STAT, CINT_DONE);
659 
660 		spin_lock(&mvi->lock);
661 		mvs_int_full(mvi);
662 		spin_unlock(&mvi->lock);
663 	}
664 	return IRQ_HANDLED;
665 }
666 
667 static void mvs_94xx_command_active(struct mvs_info *mvi, u32 slot_idx)
668 {
669 	u32 tmp;
670 	tmp = mvs_cr32(mvi, MVS_COMMAND_ACTIVE+(slot_idx >> 3));
671 	if (tmp & 1 << (slot_idx % 32)) {
672 		mv_printk("command active %08X,  slot [%x].\n", tmp, slot_idx);
673 		mvs_cw32(mvi, MVS_COMMAND_ACTIVE + (slot_idx >> 3),
674 			1 << (slot_idx % 32));
675 		do {
676 			tmp = mvs_cr32(mvi,
677 				MVS_COMMAND_ACTIVE + (slot_idx >> 3));
678 		} while (tmp & 1 << (slot_idx % 32));
679 	}
680 }
681 
682 static void
683 mvs_94xx_clear_srs_irq(struct mvs_info *mvi, u8 reg_set, u8 clear_all)
684 {
685 	void __iomem *regs = mvi->regs;
686 	u32 tmp;
687 
688 	if (clear_all) {
689 		tmp = mr32(MVS_INT_STAT_SRS_0);
690 		if (tmp) {
691 			mv_dprintk("check SRS 0 %08X.\n", tmp);
692 			mw32(MVS_INT_STAT_SRS_0, tmp);
693 		}
694 		tmp = mr32(MVS_INT_STAT_SRS_1);
695 		if (tmp) {
696 			mv_dprintk("check SRS 1 %08X.\n", tmp);
697 			mw32(MVS_INT_STAT_SRS_1, tmp);
698 		}
699 	} else {
700 		if (reg_set > 31)
701 			tmp = mr32(MVS_INT_STAT_SRS_1);
702 		else
703 			tmp = mr32(MVS_INT_STAT_SRS_0);
704 
705 		if (tmp & (1 << (reg_set % 32))) {
706 			mv_dprintk("register set 0x%x was stopped.\n", reg_set);
707 			if (reg_set > 31)
708 				mw32(MVS_INT_STAT_SRS_1, 1 << (reg_set % 32));
709 			else
710 				mw32(MVS_INT_STAT_SRS_0, 1 << (reg_set % 32));
711 		}
712 	}
713 }
714 
715 static void mvs_94xx_issue_stop(struct mvs_info *mvi, enum mvs_port_type type,
716 				u32 tfs)
717 {
718 	void __iomem *regs = mvi->regs;
719 	u32 tmp;
720 	mvs_94xx_clear_srs_irq(mvi, 0, 1);
721 
722 	tmp = mr32(MVS_INT_STAT);
723 	mw32(MVS_INT_STAT, tmp | CINT_CI_STOP);
724 	tmp = mr32(MVS_PCS) | 0xFF00;
725 	mw32(MVS_PCS, tmp);
726 }
727 
728 static void mvs_94xx_non_spec_ncq_error(struct mvs_info *mvi)
729 {
730 	void __iomem *regs = mvi->regs;
731 	u32 err_0, err_1;
732 	u8 i;
733 	struct mvs_device *device;
734 
735 	err_0 = mr32(MVS_NON_NCQ_ERR_0);
736 	err_1 = mr32(MVS_NON_NCQ_ERR_1);
737 
738 	mv_dprintk("non specific ncq error err_0:%x,err_1:%x.\n",
739 			err_0, err_1);
740 	for (i = 0; i < 32; i++) {
741 		if (err_0 & bit(i)) {
742 			device = mvs_find_dev_by_reg_set(mvi, i);
743 			if (device)
744 				mvs_release_task(mvi, device->sas_device);
745 		}
746 		if (err_1 & bit(i)) {
747 			device = mvs_find_dev_by_reg_set(mvi, i+32);
748 			if (device)
749 				mvs_release_task(mvi, device->sas_device);
750 		}
751 	}
752 
753 	mw32(MVS_NON_NCQ_ERR_0, err_0);
754 	mw32(MVS_NON_NCQ_ERR_1, err_1);
755 }
756 
757 static void mvs_94xx_free_reg_set(struct mvs_info *mvi, u8 *tfs)
758 {
759 	void __iomem *regs = mvi->regs;
760 	u8 reg_set = *tfs;
761 
762 	if (*tfs == MVS_ID_NOT_MAPPED)
763 		return;
764 
765 	mvi->sata_reg_set &= ~bit(reg_set);
766 	if (reg_set < 32)
767 		w_reg_set_enable(reg_set, (u32)mvi->sata_reg_set);
768 	else
769 		w_reg_set_enable(reg_set, (u32)(mvi->sata_reg_set >> 32));
770 
771 	*tfs = MVS_ID_NOT_MAPPED;
772 
773 	return;
774 }
775 
776 static u8 mvs_94xx_assign_reg_set(struct mvs_info *mvi, u8 *tfs)
777 {
778 	int i;
779 	void __iomem *regs = mvi->regs;
780 
781 	if (*tfs != MVS_ID_NOT_MAPPED)
782 		return 0;
783 
784 	i = mv_ffc64(mvi->sata_reg_set);
785 	if (i >= 32) {
786 		mvi->sata_reg_set |= bit(i);
787 		w_reg_set_enable(i, (u32)(mvi->sata_reg_set >> 32));
788 		*tfs = i;
789 		return 0;
790 	} else if (i >= 0) {
791 		mvi->sata_reg_set |= bit(i);
792 		w_reg_set_enable(i, (u32)mvi->sata_reg_set);
793 		*tfs = i;
794 		return 0;
795 	}
796 	return MVS_ID_NOT_MAPPED;
797 }
798 
799 static void mvs_94xx_make_prd(struct scatterlist *scatter, int nr, void *prd)
800 {
801 	int i;
802 	struct scatterlist *sg;
803 	struct mvs_prd *buf_prd = prd;
804 	struct mvs_prd_imt im_len;
805 	*(u32 *)&im_len = 0;
806 	for_each_sg(scatter, sg, nr, i) {
807 		buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
808 		im_len.len = sg_dma_len(sg);
809 		buf_prd->im_len = cpu_to_le32(*(u32 *)&im_len);
810 		buf_prd++;
811 	}
812 }
813 
814 static int mvs_94xx_oob_done(struct mvs_info *mvi, int i)
815 {
816 	u32 phy_st;
817 	phy_st = mvs_read_phy_ctl(mvi, i);
818 	if (phy_st & PHY_READY_MASK)
819 		return 1;
820 	return 0;
821 }
822 
823 static void mvs_94xx_get_dev_identify_frame(struct mvs_info *mvi, int port_id,
824 					struct sas_identify_frame *id)
825 {
826 	int i;
827 	u32 id_frame[7];
828 
829 	for (i = 0; i < 7; i++) {
830 		mvs_write_port_cfg_addr(mvi, port_id,
831 					CONFIG_ID_FRAME0 + i * 4);
832 		id_frame[i] = cpu_to_le32(mvs_read_port_cfg_data(mvi, port_id));
833 	}
834 	memcpy(id, id_frame, 28);
835 }
836 
837 static void mvs_94xx_get_att_identify_frame(struct mvs_info *mvi, int port_id,
838 					struct sas_identify_frame *id)
839 {
840 	int i;
841 	u32 id_frame[7];
842 
843 	for (i = 0; i < 7; i++) {
844 		mvs_write_port_cfg_addr(mvi, port_id,
845 					CONFIG_ATT_ID_FRAME0 + i * 4);
846 		id_frame[i] = cpu_to_le32(mvs_read_port_cfg_data(mvi, port_id));
847 		mv_dprintk("94xx phy %d atta frame %d %x.\n",
848 			port_id + mvi->id * mvi->chip->n_phy, i, id_frame[i]);
849 	}
850 	memcpy(id, id_frame, 28);
851 }
852 
853 static u32 mvs_94xx_make_dev_info(struct sas_identify_frame *id)
854 {
855 	u32 att_dev_info = 0;
856 
857 	att_dev_info |= id->dev_type;
858 	if (id->stp_iport)
859 		att_dev_info |= PORT_DEV_STP_INIT;
860 	if (id->smp_iport)
861 		att_dev_info |= PORT_DEV_SMP_INIT;
862 	if (id->ssp_iport)
863 		att_dev_info |= PORT_DEV_SSP_INIT;
864 	if (id->stp_tport)
865 		att_dev_info |= PORT_DEV_STP_TRGT;
866 	if (id->smp_tport)
867 		att_dev_info |= PORT_DEV_SMP_TRGT;
868 	if (id->ssp_tport)
869 		att_dev_info |= PORT_DEV_SSP_TRGT;
870 
871 	att_dev_info |= (u32)id->phy_id<<24;
872 	return att_dev_info;
873 }
874 
875 static u32 mvs_94xx_make_att_info(struct sas_identify_frame *id)
876 {
877 	return mvs_94xx_make_dev_info(id);
878 }
879 
880 static void mvs_94xx_fix_phy_info(struct mvs_info *mvi, int i,
881 				struct sas_identify_frame *id)
882 {
883 	struct mvs_phy *phy = &mvi->phy[i];
884 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
885 	mv_dprintk("get all reg link rate is 0x%x\n", phy->phy_status);
886 	sas_phy->linkrate =
887 		(phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
888 			PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET;
889 	sas_phy->linkrate += 0x8;
890 	mv_dprintk("get link rate is %d\n", sas_phy->linkrate);
891 	phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS;
892 	phy->maximum_linkrate = SAS_LINK_RATE_6_0_GBPS;
893 	mvs_94xx_get_dev_identify_frame(mvi, i, id);
894 	phy->dev_info = mvs_94xx_make_dev_info(id);
895 
896 	if (phy->phy_type & PORT_TYPE_SAS) {
897 		mvs_94xx_get_att_identify_frame(mvi, i, id);
898 		phy->att_dev_info = mvs_94xx_make_att_info(id);
899 		phy->att_dev_sas_addr = *(u64 *)id->sas_addr;
900 	} else {
901 		phy->att_dev_info = PORT_DEV_STP_TRGT | 1;
902 	}
903 
904 	/* enable spin up bit */
905 	mvs_write_port_cfg_addr(mvi, i, PHYR_PHY_STAT);
906 	mvs_write_port_cfg_data(mvi, i, 0x04);
907 
908 }
909 
910 static void mvs_94xx_phy_set_link_rate(struct mvs_info *mvi, u32 phy_id,
911 				       struct sas_phy_linkrates *rates)
912 {
913 	u32 lrmax = 0;
914 	u32 tmp;
915 
916 	tmp = mvs_read_phy_ctl(mvi, phy_id);
917 	lrmax = (rates->maximum_linkrate - SAS_LINK_RATE_1_5_GBPS) << 12;
918 
919 	if (lrmax) {
920 		tmp &= ~(0x3 << 12);
921 		tmp |= lrmax;
922 	}
923 	mvs_write_phy_ctl(mvi, phy_id, tmp);
924 	mvs_94xx_phy_reset(mvi, phy_id, PHY_RST_HARD);
925 }
926 
927 static void mvs_94xx_clear_active_cmds(struct mvs_info *mvi)
928 {
929 	u32 tmp;
930 	void __iomem *regs = mvi->regs;
931 	tmp = mr32(MVS_STP_REG_SET_0);
932 	mw32(MVS_STP_REG_SET_0, 0);
933 	mw32(MVS_STP_REG_SET_0, tmp);
934 	tmp = mr32(MVS_STP_REG_SET_1);
935 	mw32(MVS_STP_REG_SET_1, 0);
936 	mw32(MVS_STP_REG_SET_1, tmp);
937 }
938 
939 
940 static u32 mvs_94xx_spi_read_data(struct mvs_info *mvi)
941 {
942 	void __iomem *regs = mvi->regs_ex - 0x10200;
943 	return mr32(SPI_RD_DATA_REG_94XX);
944 }
945 
946 static void mvs_94xx_spi_write_data(struct mvs_info *mvi, u32 data)
947 {
948 	void __iomem *regs = mvi->regs_ex - 0x10200;
949 	 mw32(SPI_RD_DATA_REG_94XX, data);
950 }
951 
952 
953 static int mvs_94xx_spi_buildcmd(struct mvs_info *mvi,
954 				 u32      *dwCmd,
955 				 u8       cmd,
956 				 u8       read,
957 				 u8       length,
958 				 u32      addr
959 				)
960 {
961 	void __iomem *regs = mvi->regs_ex - 0x10200;
962 	u32  dwTmp;
963 
964 	dwTmp = ((u32)cmd << 8) | ((u32)length << 4);
965 	if (read)
966 		dwTmp |= SPI_CTRL_READ_94XX;
967 
968 	if (addr != MV_MAX_U32) {
969 		mw32(SPI_ADDR_REG_94XX, (addr & 0x0003FFFFL));
970 		dwTmp |= SPI_ADDR_VLD_94XX;
971 	}
972 
973 	*dwCmd = dwTmp;
974 	return 0;
975 }
976 
977 
978 static int mvs_94xx_spi_issuecmd(struct mvs_info *mvi, u32 cmd)
979 {
980 	void __iomem *regs = mvi->regs_ex - 0x10200;
981 	mw32(SPI_CTRL_REG_94XX, cmd | SPI_CTRL_SpiStart_94XX);
982 
983 	return 0;
984 }
985 
986 static int mvs_94xx_spi_waitdataready(struct mvs_info *mvi, u32 timeout)
987 {
988 	void __iomem *regs = mvi->regs_ex - 0x10200;
989 	u32   i, dwTmp;
990 
991 	for (i = 0; i < timeout; i++) {
992 		dwTmp = mr32(SPI_CTRL_REG_94XX);
993 		if (!(dwTmp & SPI_CTRL_SpiStart_94XX))
994 			return 0;
995 		msleep(10);
996 	}
997 
998 	return -1;
999 }
1000 
1001 static void mvs_94xx_fix_dma(struct mvs_info *mvi, u32 phy_mask,
1002 			     int buf_len, int from, void *prd)
1003 {
1004 	int i;
1005 	struct mvs_prd *buf_prd = prd;
1006 	dma_addr_t buf_dma;
1007 	struct mvs_prd_imt im_len;
1008 
1009 	*(u32 *)&im_len = 0;
1010 	buf_prd += from;
1011 
1012 #define PRD_CHAINED_ENTRY 0x01
1013 	if ((mvi->pdev->revision == VANIR_A0_REV) ||
1014 			(mvi->pdev->revision == VANIR_B0_REV))
1015 		buf_dma = (phy_mask <= 0x08) ?
1016 				mvi->bulk_buffer_dma : mvi->bulk_buffer_dma1;
1017 	else
1018 		return;
1019 
1020 	for (i = from; i < MAX_SG_ENTRY; i++, ++buf_prd) {
1021 		if (i == MAX_SG_ENTRY - 1) {
1022 			buf_prd->addr = cpu_to_le64(virt_to_phys(buf_prd - 1));
1023 			im_len.len = 2;
1024 			im_len.misc_ctl = PRD_CHAINED_ENTRY;
1025 		} else {
1026 			buf_prd->addr = cpu_to_le64(buf_dma);
1027 			im_len.len = buf_len;
1028 		}
1029 		buf_prd->im_len = cpu_to_le32(*(u32 *)&im_len);
1030 	}
1031 }
1032 
1033 static void mvs_94xx_tune_interrupt(struct mvs_info *mvi, u32 time)
1034 {
1035 	void __iomem *regs = mvi->regs;
1036 	u32 tmp = 0;
1037 	/*
1038 	 * the max count is 0x1ff, while our max slot is 0x200,
1039 	 * it will make count 0.
1040 	 */
1041 	if (time == 0) {
1042 		mw32(MVS_INT_COAL, 0);
1043 		mw32(MVS_INT_COAL_TMOUT, 0x10000);
1044 	} else {
1045 		if (MVS_CHIP_SLOT_SZ > 0x1ff)
1046 			mw32(MVS_INT_COAL, 0x1ff|COAL_EN);
1047 		else
1048 			mw32(MVS_INT_COAL, MVS_CHIP_SLOT_SZ|COAL_EN);
1049 
1050 		tmp = 0x10000 | time;
1051 		mw32(MVS_INT_COAL_TMOUT, tmp);
1052 	}
1053 
1054 }
1055 
1056 static int mvs_94xx_gpio_write(struct mvs_prv_info *mvs_prv,
1057 			u8 reg_type, u8 reg_index,
1058 			u8 reg_count, u8 *write_data)
1059 {
1060 	int i;
1061 
1062 	switch (reg_type) {
1063 
1064 	case SAS_GPIO_REG_TX_GP:
1065 		if (reg_index == 0)
1066 			return -EINVAL;
1067 
1068 		if (reg_count > 1)
1069 			return -EINVAL;
1070 
1071 		if (reg_count == 0)
1072 			return 0;
1073 
1074 		/* maximum supported bits = hosts * 4 drives * 3 bits */
1075 		for (i = 0; i < mvs_prv->n_host * 4 * 3; i++) {
1076 
1077 			/* select host */
1078 			struct mvs_info *mvi = mvs_prv->mvi[i/(4*3)];
1079 
1080 			void __iomem *regs = mvi->regs_ex - 0x10200;
1081 
1082 			int drive = (i/3) & (4-1); /* drive number on host */
1083 			int driveshift = drive * 8; /* bit offset of drive */
1084 			u32 block = ioread32be(regs + MVS_SGPIO_DCTRL +
1085 				MVS_SGPIO_HOST_OFFSET * mvi->id);
1086 
1087 			/*
1088 			* if bit is set then create a mask with the first
1089 			* bit of the drive set in the mask ...
1090 			*/
1091 			u32 bit = get_unaligned_be32(write_data) & (1 << i) ?
1092 				1 << driveshift : 0;
1093 
1094 			/*
1095 			* ... and then shift it to the right position based
1096 			* on the led type (activity/id/fail)
1097 			*/
1098 			switch (i%3) {
1099 			case 0: /* activity */
1100 				block &= ~((0x7 << MVS_SGPIO_DCTRL_ACT_SHIFT)
1101 					<< driveshift);
1102 					/* hardwire activity bit to SOF */
1103 				block |= LED_BLINKA_SOF << (
1104 					MVS_SGPIO_DCTRL_ACT_SHIFT +
1105 					driveshift);
1106 				break;
1107 			case 1: /* id */
1108 				block &= ~((0x3 << MVS_SGPIO_DCTRL_LOC_SHIFT)
1109 					<< driveshift);
1110 				block |= bit << MVS_SGPIO_DCTRL_LOC_SHIFT;
1111 				break;
1112 			case 2: /* fail */
1113 				block &= ~((0x7 << MVS_SGPIO_DCTRL_ERR_SHIFT)
1114 					<< driveshift);
1115 				block |= bit << MVS_SGPIO_DCTRL_ERR_SHIFT;
1116 				break;
1117 			}
1118 
1119 			iowrite32be(block,
1120 				regs + MVS_SGPIO_DCTRL +
1121 				MVS_SGPIO_HOST_OFFSET * mvi->id);
1122 
1123 		}
1124 
1125 		return reg_count;
1126 
1127 	case SAS_GPIO_REG_TX:
1128 		if (reg_index + reg_count > mvs_prv->n_host)
1129 			return -EINVAL;
1130 
1131 		for (i = 0; i < reg_count; i++) {
1132 			struct mvs_info *mvi = mvs_prv->mvi[i+reg_index];
1133 			void __iomem *regs = mvi->regs_ex - 0x10200;
1134 
1135 			mw32(MVS_SGPIO_DCTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
1136 				((u32 *) write_data)[i]);
1137 		}
1138 		return reg_count;
1139 	}
1140 	return -ENOSYS;
1141 }
1142 
1143 const struct mvs_dispatch mvs_94xx_dispatch = {
1144 	"mv94xx",
1145 	mvs_94xx_init,
1146 	NULL,
1147 	mvs_94xx_ioremap,
1148 	mvs_94xx_iounmap,
1149 	mvs_94xx_isr,
1150 	mvs_94xx_isr_status,
1151 	mvs_94xx_interrupt_enable,
1152 	mvs_94xx_interrupt_disable,
1153 	mvs_read_phy_ctl,
1154 	mvs_write_phy_ctl,
1155 	mvs_read_port_cfg_data,
1156 	mvs_write_port_cfg_data,
1157 	mvs_write_port_cfg_addr,
1158 	mvs_read_port_vsr_data,
1159 	mvs_write_port_vsr_data,
1160 	mvs_write_port_vsr_addr,
1161 	mvs_read_port_irq_stat,
1162 	mvs_write_port_irq_stat,
1163 	mvs_read_port_irq_mask,
1164 	mvs_write_port_irq_mask,
1165 	mvs_94xx_command_active,
1166 	mvs_94xx_clear_srs_irq,
1167 	mvs_94xx_issue_stop,
1168 	mvs_start_delivery,
1169 	mvs_rx_update,
1170 	mvs_int_full,
1171 	mvs_94xx_assign_reg_set,
1172 	mvs_94xx_free_reg_set,
1173 	mvs_get_prd_size,
1174 	mvs_get_prd_count,
1175 	mvs_94xx_make_prd,
1176 	mvs_94xx_detect_porttype,
1177 	mvs_94xx_oob_done,
1178 	mvs_94xx_fix_phy_info,
1179 	NULL,
1180 	mvs_94xx_phy_set_link_rate,
1181 	mvs_hw_max_link_rate,
1182 	mvs_94xx_phy_disable,
1183 	mvs_94xx_phy_enable,
1184 	mvs_94xx_phy_reset,
1185 	NULL,
1186 	mvs_94xx_clear_active_cmds,
1187 	mvs_94xx_spi_read_data,
1188 	mvs_94xx_spi_write_data,
1189 	mvs_94xx_spi_buildcmd,
1190 	mvs_94xx_spi_issuecmd,
1191 	mvs_94xx_spi_waitdataready,
1192 	mvs_94xx_fix_dma,
1193 	mvs_94xx_tune_interrupt,
1194 	mvs_94xx_non_spec_ncq_error,
1195 	mvs_94xx_gpio_write,
1196 };
1197 
1198