xref: /openbmc/linux/drivers/scsi/mvsas/mv_94xx.c (revision f3539c12)
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 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 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 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 void mvs_94xx_clear_srs_irq(struct mvs_info *mvi, u8 reg_set, u8 clear_all)
683 {
684 	void __iomem *regs = mvi->regs;
685 	u32 tmp;
686 
687 	if (clear_all) {
688 		tmp = mr32(MVS_INT_STAT_SRS_0);
689 		if (tmp) {
690 			mv_dprintk("check SRS 0 %08X.\n", tmp);
691 			mw32(MVS_INT_STAT_SRS_0, tmp);
692 		}
693 		tmp = mr32(MVS_INT_STAT_SRS_1);
694 		if (tmp) {
695 			mv_dprintk("check SRS 1 %08X.\n", tmp);
696 			mw32(MVS_INT_STAT_SRS_1, tmp);
697 		}
698 	} else {
699 		if (reg_set > 31)
700 			tmp = mr32(MVS_INT_STAT_SRS_1);
701 		else
702 			tmp = mr32(MVS_INT_STAT_SRS_0);
703 
704 		if (tmp & (1 << (reg_set % 32))) {
705 			mv_dprintk("register set 0x%x was stopped.\n", reg_set);
706 			if (reg_set > 31)
707 				mw32(MVS_INT_STAT_SRS_1, 1 << (reg_set % 32));
708 			else
709 				mw32(MVS_INT_STAT_SRS_0, 1 << (reg_set % 32));
710 		}
711 	}
712 }
713 
714 static void mvs_94xx_issue_stop(struct mvs_info *mvi, enum mvs_port_type type,
715 				u32 tfs)
716 {
717 	void __iomem *regs = mvi->regs;
718 	u32 tmp;
719 	mvs_94xx_clear_srs_irq(mvi, 0, 1);
720 
721 	tmp = mr32(MVS_INT_STAT);
722 	mw32(MVS_INT_STAT, tmp | CINT_CI_STOP);
723 	tmp = mr32(MVS_PCS) | 0xFF00;
724 	mw32(MVS_PCS, tmp);
725 }
726 
727 static void mvs_94xx_non_spec_ncq_error(struct mvs_info *mvi)
728 {
729 	void __iomem *regs = mvi->regs;
730 	u32 err_0, err_1;
731 	u8 i;
732 	struct mvs_device *device;
733 
734 	err_0 = mr32(MVS_NON_NCQ_ERR_0);
735 	err_1 = mr32(MVS_NON_NCQ_ERR_1);
736 
737 	mv_dprintk("non specific ncq error err_0:%x,err_1:%x.\n",
738 			err_0, err_1);
739 	for (i = 0; i < 32; i++) {
740 		if (err_0 & bit(i)) {
741 			device = mvs_find_dev_by_reg_set(mvi, i);
742 			if (device)
743 				mvs_release_task(mvi, device->sas_device);
744 		}
745 		if (err_1 & bit(i)) {
746 			device = mvs_find_dev_by_reg_set(mvi, i+32);
747 			if (device)
748 				mvs_release_task(mvi, device->sas_device);
749 		}
750 	}
751 
752 	mw32(MVS_NON_NCQ_ERR_0, err_0);
753 	mw32(MVS_NON_NCQ_ERR_1, err_1);
754 }
755 
756 static void mvs_94xx_free_reg_set(struct mvs_info *mvi, u8 *tfs)
757 {
758 	void __iomem *regs = mvi->regs;
759 	u8 reg_set = *tfs;
760 
761 	if (*tfs == MVS_ID_NOT_MAPPED)
762 		return;
763 
764 	mvi->sata_reg_set &= ~bit(reg_set);
765 	if (reg_set < 32)
766 		w_reg_set_enable(reg_set, (u32)mvi->sata_reg_set);
767 	else
768 		w_reg_set_enable(reg_set, (u32)(mvi->sata_reg_set >> 32));
769 
770 	*tfs = MVS_ID_NOT_MAPPED;
771 
772 	return;
773 }
774 
775 static u8 mvs_94xx_assign_reg_set(struct mvs_info *mvi, u8 *tfs)
776 {
777 	int i;
778 	void __iomem *regs = mvi->regs;
779 
780 	if (*tfs != MVS_ID_NOT_MAPPED)
781 		return 0;
782 
783 	i = mv_ffc64(mvi->sata_reg_set);
784 	if (i >= 32) {
785 		mvi->sata_reg_set |= bit(i);
786 		w_reg_set_enable(i, (u32)(mvi->sata_reg_set >> 32));
787 		*tfs = i;
788 		return 0;
789 	} else if (i >= 0) {
790 		mvi->sata_reg_set |= bit(i);
791 		w_reg_set_enable(i, (u32)mvi->sata_reg_set);
792 		*tfs = i;
793 		return 0;
794 	}
795 	return MVS_ID_NOT_MAPPED;
796 }
797 
798 static void mvs_94xx_make_prd(struct scatterlist *scatter, int nr, void *prd)
799 {
800 	int i;
801 	struct scatterlist *sg;
802 	struct mvs_prd *buf_prd = prd;
803 	struct mvs_prd_imt im_len;
804 	*(u32 *)&im_len = 0;
805 	for_each_sg(scatter, sg, nr, i) {
806 		buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
807 		im_len.len = sg_dma_len(sg);
808 		buf_prd->im_len = cpu_to_le32(*(u32 *)&im_len);
809 		buf_prd++;
810 	}
811 }
812 
813 static int mvs_94xx_oob_done(struct mvs_info *mvi, int i)
814 {
815 	u32 phy_st;
816 	phy_st = mvs_read_phy_ctl(mvi, i);
817 	if (phy_st & PHY_READY_MASK)
818 		return 1;
819 	return 0;
820 }
821 
822 static void mvs_94xx_get_dev_identify_frame(struct mvs_info *mvi, int port_id,
823 					struct sas_identify_frame *id)
824 {
825 	int i;
826 	u32 id_frame[7];
827 
828 	for (i = 0; i < 7; i++) {
829 		mvs_write_port_cfg_addr(mvi, port_id,
830 					CONFIG_ID_FRAME0 + i * 4);
831 		id_frame[i] = cpu_to_le32(mvs_read_port_cfg_data(mvi, port_id));
832 	}
833 	memcpy(id, id_frame, 28);
834 }
835 
836 static void mvs_94xx_get_att_identify_frame(struct mvs_info *mvi, int port_id,
837 					struct sas_identify_frame *id)
838 {
839 	int i;
840 	u32 id_frame[7];
841 
842 	for (i = 0; i < 7; i++) {
843 		mvs_write_port_cfg_addr(mvi, port_id,
844 					CONFIG_ATT_ID_FRAME0 + i * 4);
845 		id_frame[i] = cpu_to_le32(mvs_read_port_cfg_data(mvi, port_id));
846 		mv_dprintk("94xx phy %d atta frame %d %x.\n",
847 			port_id + mvi->id * mvi->chip->n_phy, i, id_frame[i]);
848 	}
849 	memcpy(id, id_frame, 28);
850 }
851 
852 static u32 mvs_94xx_make_dev_info(struct sas_identify_frame *id)
853 {
854 	u32 att_dev_info = 0;
855 
856 	att_dev_info |= id->dev_type;
857 	if (id->stp_iport)
858 		att_dev_info |= PORT_DEV_STP_INIT;
859 	if (id->smp_iport)
860 		att_dev_info |= PORT_DEV_SMP_INIT;
861 	if (id->ssp_iport)
862 		att_dev_info |= PORT_DEV_SSP_INIT;
863 	if (id->stp_tport)
864 		att_dev_info |= PORT_DEV_STP_TRGT;
865 	if (id->smp_tport)
866 		att_dev_info |= PORT_DEV_SMP_TRGT;
867 	if (id->ssp_tport)
868 		att_dev_info |= PORT_DEV_SSP_TRGT;
869 
870 	att_dev_info |= (u32)id->phy_id<<24;
871 	return att_dev_info;
872 }
873 
874 static u32 mvs_94xx_make_att_info(struct sas_identify_frame *id)
875 {
876 	return mvs_94xx_make_dev_info(id);
877 }
878 
879 static void mvs_94xx_fix_phy_info(struct mvs_info *mvi, int i,
880 				struct sas_identify_frame *id)
881 {
882 	struct mvs_phy *phy = &mvi->phy[i];
883 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
884 	mv_dprintk("get all reg link rate is 0x%x\n", phy->phy_status);
885 	sas_phy->linkrate =
886 		(phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
887 			PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET;
888 	sas_phy->linkrate += 0x8;
889 	mv_dprintk("get link rate is %d\n", sas_phy->linkrate);
890 	phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS;
891 	phy->maximum_linkrate = SAS_LINK_RATE_6_0_GBPS;
892 	mvs_94xx_get_dev_identify_frame(mvi, i, id);
893 	phy->dev_info = mvs_94xx_make_dev_info(id);
894 
895 	if (phy->phy_type & PORT_TYPE_SAS) {
896 		mvs_94xx_get_att_identify_frame(mvi, i, id);
897 		phy->att_dev_info = mvs_94xx_make_att_info(id);
898 		phy->att_dev_sas_addr = *(u64 *)id->sas_addr;
899 	} else {
900 		phy->att_dev_info = PORT_DEV_STP_TRGT | 1;
901 	}
902 
903 	/* enable spin up bit */
904 	mvs_write_port_cfg_addr(mvi, i, PHYR_PHY_STAT);
905 	mvs_write_port_cfg_data(mvi, i, 0x04);
906 
907 }
908 
909 void mvs_94xx_phy_set_link_rate(struct mvs_info *mvi, u32 phy_id,
910 			struct sas_phy_linkrates *rates)
911 {
912 	u32 lrmax = 0;
913 	u32 tmp;
914 
915 	tmp = mvs_read_phy_ctl(mvi, phy_id);
916 	lrmax = (rates->maximum_linkrate - SAS_LINK_RATE_1_5_GBPS) << 12;
917 
918 	if (lrmax) {
919 		tmp &= ~(0x3 << 12);
920 		tmp |= lrmax;
921 	}
922 	mvs_write_phy_ctl(mvi, phy_id, tmp);
923 	mvs_94xx_phy_reset(mvi, phy_id, PHY_RST_HARD);
924 }
925 
926 static void mvs_94xx_clear_active_cmds(struct mvs_info *mvi)
927 {
928 	u32 tmp;
929 	void __iomem *regs = mvi->regs;
930 	tmp = mr32(MVS_STP_REG_SET_0);
931 	mw32(MVS_STP_REG_SET_0, 0);
932 	mw32(MVS_STP_REG_SET_0, tmp);
933 	tmp = mr32(MVS_STP_REG_SET_1);
934 	mw32(MVS_STP_REG_SET_1, 0);
935 	mw32(MVS_STP_REG_SET_1, tmp);
936 }
937 
938 
939 u32 mvs_94xx_spi_read_data(struct mvs_info *mvi)
940 {
941 	void __iomem *regs = mvi->regs_ex - 0x10200;
942 	return mr32(SPI_RD_DATA_REG_94XX);
943 }
944 
945 void mvs_94xx_spi_write_data(struct mvs_info *mvi, u32 data)
946 {
947 	void __iomem *regs = mvi->regs_ex - 0x10200;
948 	 mw32(SPI_RD_DATA_REG_94XX, data);
949 }
950 
951 
952 int mvs_94xx_spi_buildcmd(struct mvs_info *mvi,
953 				u32      *dwCmd,
954 				u8       cmd,
955 				u8       read,
956 				u8       length,
957 				u32      addr
958 				)
959 {
960 	void __iomem *regs = mvi->regs_ex - 0x10200;
961 	u32  dwTmp;
962 
963 	dwTmp = ((u32)cmd << 8) | ((u32)length << 4);
964 	if (read)
965 		dwTmp |= SPI_CTRL_READ_94XX;
966 
967 	if (addr != MV_MAX_U32) {
968 		mw32(SPI_ADDR_REG_94XX, (addr & 0x0003FFFFL));
969 		dwTmp |= SPI_ADDR_VLD_94XX;
970 	}
971 
972 	*dwCmd = dwTmp;
973 	return 0;
974 }
975 
976 
977 int mvs_94xx_spi_issuecmd(struct mvs_info *mvi, u32 cmd)
978 {
979 	void __iomem *regs = mvi->regs_ex - 0x10200;
980 	mw32(SPI_CTRL_REG_94XX, cmd | SPI_CTRL_SpiStart_94XX);
981 
982 	return 0;
983 }
984 
985 int mvs_94xx_spi_waitdataready(struct mvs_info *mvi, u32 timeout)
986 {
987 	void __iomem *regs = mvi->regs_ex - 0x10200;
988 	u32   i, dwTmp;
989 
990 	for (i = 0; i < timeout; i++) {
991 		dwTmp = mr32(SPI_CTRL_REG_94XX);
992 		if (!(dwTmp & SPI_CTRL_SpiStart_94XX))
993 			return 0;
994 		msleep(10);
995 	}
996 
997 	return -1;
998 }
999 
1000 void mvs_94xx_fix_dma(struct mvs_info *mvi, u32 phy_mask,
1001 				int buf_len, int from, void *prd)
1002 {
1003 	int i;
1004 	struct mvs_prd *buf_prd = prd;
1005 	dma_addr_t buf_dma;
1006 	struct mvs_prd_imt im_len;
1007 
1008 	*(u32 *)&im_len = 0;
1009 	buf_prd += from;
1010 
1011 #define PRD_CHAINED_ENTRY 0x01
1012 	if ((mvi->pdev->revision == VANIR_A0_REV) ||
1013 			(mvi->pdev->revision == VANIR_B0_REV))
1014 		buf_dma = (phy_mask <= 0x08) ?
1015 				mvi->bulk_buffer_dma : mvi->bulk_buffer_dma1;
1016 	else
1017 		return;
1018 
1019 	for (i = from; i < MAX_SG_ENTRY; i++, ++buf_prd) {
1020 		if (i == MAX_SG_ENTRY - 1) {
1021 			buf_prd->addr = cpu_to_le64(virt_to_phys(buf_prd - 1));
1022 			im_len.len = 2;
1023 			im_len.misc_ctl = PRD_CHAINED_ENTRY;
1024 		} else {
1025 			buf_prd->addr = cpu_to_le64(buf_dma);
1026 			im_len.len = buf_len;
1027 		}
1028 		buf_prd->im_len = cpu_to_le32(*(u32 *)&im_len);
1029 	}
1030 }
1031 
1032 static void mvs_94xx_tune_interrupt(struct mvs_info *mvi, u32 time)
1033 {
1034 	void __iomem *regs = mvi->regs;
1035 	u32 tmp = 0;
1036 	/*
1037 	 * the max count is 0x1ff, while our max slot is 0x200,
1038 	 * it will make count 0.
1039 	 */
1040 	if (time == 0) {
1041 		mw32(MVS_INT_COAL, 0);
1042 		mw32(MVS_INT_COAL_TMOUT, 0x10000);
1043 	} else {
1044 		if (MVS_CHIP_SLOT_SZ > 0x1ff)
1045 			mw32(MVS_INT_COAL, 0x1ff|COAL_EN);
1046 		else
1047 			mw32(MVS_INT_COAL, MVS_CHIP_SLOT_SZ|COAL_EN);
1048 
1049 		tmp = 0x10000 | time;
1050 		mw32(MVS_INT_COAL_TMOUT, tmp);
1051 	}
1052 
1053 }
1054 
1055 static int mvs_94xx_gpio_write(struct mvs_prv_info *mvs_prv,
1056 			u8 reg_type, u8 reg_index,
1057 			u8 reg_count, u8 *write_data)
1058 {
1059 	int i;
1060 
1061 	switch (reg_type) {
1062 
1063 	case SAS_GPIO_REG_TX_GP:
1064 		if (reg_index == 0)
1065 			return -EINVAL;
1066 
1067 		if (reg_count > 1)
1068 			return -EINVAL;
1069 
1070 		if (reg_count == 0)
1071 			return 0;
1072 
1073 		/* maximum supported bits = hosts * 4 drives * 3 bits */
1074 		for (i = 0; i < mvs_prv->n_host * 4 * 3; i++) {
1075 
1076 			/* select host */
1077 			struct mvs_info *mvi = mvs_prv->mvi[i/(4*3)];
1078 
1079 			void __iomem *regs = mvi->regs_ex - 0x10200;
1080 
1081 			int drive = (i/3) & (4-1); /* drive number on host */
1082 			u32 block = mr32(MVS_SGPIO_DCTRL +
1083 				MVS_SGPIO_HOST_OFFSET * mvi->id);
1084 
1085 
1086 			/*
1087 			* if bit is set then create a mask with the first
1088 			* bit of the drive set in the mask ...
1089 			*/
1090 			u32 bit = (write_data[i/8] & (1 << (i&(8-1)))) ?
1091 				1<<(24-drive*8) : 0;
1092 
1093 			/*
1094 			* ... and then shift it to the right position based
1095 			* on the led type (activity/id/fail)
1096 			*/
1097 			switch (i%3) {
1098 			case 0: /* activity */
1099 				block &= ~((0x7 << MVS_SGPIO_DCTRL_ACT_SHIFT)
1100 					<< (24-drive*8));
1101 					/* hardwire activity bit to SOF */
1102 				block |= LED_BLINKA_SOF << (
1103 					MVS_SGPIO_DCTRL_ACT_SHIFT +
1104 					(24-drive*8));
1105 				break;
1106 			case 1: /* id */
1107 				block &= ~((0x3 << MVS_SGPIO_DCTRL_LOC_SHIFT)
1108 					<< (24-drive*8));
1109 				block |= bit << MVS_SGPIO_DCTRL_LOC_SHIFT;
1110 				break;
1111 			case 2: /* fail */
1112 				block &= ~((0x7 << MVS_SGPIO_DCTRL_ERR_SHIFT)
1113 					<< (24-drive*8));
1114 				block |= bit << MVS_SGPIO_DCTRL_ERR_SHIFT;
1115 				break;
1116 			}
1117 
1118 			mw32(MVS_SGPIO_DCTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
1119 				block);
1120 
1121 		}
1122 
1123 		return reg_count;
1124 
1125 	case SAS_GPIO_REG_TX:
1126 		if (reg_index + reg_count > mvs_prv->n_host)
1127 			return -EINVAL;
1128 
1129 		for (i = 0; i < reg_count; i++) {
1130 			struct mvs_info *mvi = mvs_prv->mvi[i+reg_index];
1131 			void __iomem *regs = mvi->regs_ex - 0x10200;
1132 
1133 			mw32(MVS_SGPIO_DCTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
1134 				be32_to_cpu(((u32 *) write_data)[i]));
1135 		}
1136 		return reg_count;
1137 	}
1138 	return -ENOSYS;
1139 }
1140 
1141 const struct mvs_dispatch mvs_94xx_dispatch = {
1142 	"mv94xx",
1143 	mvs_94xx_init,
1144 	NULL,
1145 	mvs_94xx_ioremap,
1146 	mvs_94xx_iounmap,
1147 	mvs_94xx_isr,
1148 	mvs_94xx_isr_status,
1149 	mvs_94xx_interrupt_enable,
1150 	mvs_94xx_interrupt_disable,
1151 	mvs_read_phy_ctl,
1152 	mvs_write_phy_ctl,
1153 	mvs_read_port_cfg_data,
1154 	mvs_write_port_cfg_data,
1155 	mvs_write_port_cfg_addr,
1156 	mvs_read_port_vsr_data,
1157 	mvs_write_port_vsr_data,
1158 	mvs_write_port_vsr_addr,
1159 	mvs_read_port_irq_stat,
1160 	mvs_write_port_irq_stat,
1161 	mvs_read_port_irq_mask,
1162 	mvs_write_port_irq_mask,
1163 	mvs_94xx_command_active,
1164 	mvs_94xx_clear_srs_irq,
1165 	mvs_94xx_issue_stop,
1166 	mvs_start_delivery,
1167 	mvs_rx_update,
1168 	mvs_int_full,
1169 	mvs_94xx_assign_reg_set,
1170 	mvs_94xx_free_reg_set,
1171 	mvs_get_prd_size,
1172 	mvs_get_prd_count,
1173 	mvs_94xx_make_prd,
1174 	mvs_94xx_detect_porttype,
1175 	mvs_94xx_oob_done,
1176 	mvs_94xx_fix_phy_info,
1177 	NULL,
1178 	mvs_94xx_phy_set_link_rate,
1179 	mvs_hw_max_link_rate,
1180 	mvs_94xx_phy_disable,
1181 	mvs_94xx_phy_enable,
1182 	mvs_94xx_phy_reset,
1183 	NULL,
1184 	mvs_94xx_clear_active_cmds,
1185 	mvs_94xx_spi_read_data,
1186 	mvs_94xx_spi_write_data,
1187 	mvs_94xx_spi_buildcmd,
1188 	mvs_94xx_spi_issuecmd,
1189 	mvs_94xx_spi_waitdataready,
1190 	mvs_94xx_fix_dma,
1191 	mvs_94xx_tune_interrupt,
1192 	mvs_94xx_non_spec_ncq_error,
1193 	mvs_94xx_gpio_write,
1194 };
1195 
1196