xref: /openbmc/linux/drivers/scsi/mvsas/mv_94xx.h (revision 56a0eccd)
1 /*
2  * Marvell 88SE94xx hardware specific head file
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 #ifndef _MVS94XX_REG_H_
27 #define _MVS94XX_REG_H_
28 
29 #include <linux/types.h>
30 
31 #define MAX_LINK_RATE		SAS_LINK_RATE_6_0_GBPS
32 
33 enum VANIR_REVISION_ID {
34 	VANIR_A0_REV		= 0xA0,
35 	VANIR_B0_REV		= 0x01,
36 	VANIR_C0_REV		= 0x02,
37 	VANIR_C1_REV		= 0x03,
38 	VANIR_C2_REV		= 0xC2,
39 };
40 
41 enum host_registers {
42 	MVS_HST_CHIP_CONFIG	= 0x10104,	/* chip configuration */
43 };
44 
45 enum hw_registers {
46 	MVS_GBL_CTL		= 0x04,  /* global control */
47 	MVS_GBL_INT_STAT	= 0x00,  /* global irq status */
48 	MVS_GBL_PI		= 0x0C,  /* ports implemented bitmask */
49 
50 	MVS_PHY_CTL		= 0x40,  /* SOC PHY Control */
51 	MVS_PORTS_IMP		= 0x9C,  /* SOC Port Implemented */
52 
53 	MVS_GBL_PORT_TYPE	= 0xa0,  /* port type */
54 
55 	MVS_CTL			= 0x100, /* SAS/SATA port configuration */
56 	MVS_PCS			= 0x104, /* SAS/SATA port control/status */
57 	MVS_CMD_LIST_LO		= 0x108, /* cmd list addr */
58 	MVS_CMD_LIST_HI		= 0x10C,
59 	MVS_RX_FIS_LO		= 0x110, /* RX FIS list addr */
60 	MVS_RX_FIS_HI		= 0x114,
61 	MVS_STP_REG_SET_0	= 0x118, /* STP/SATA Register Set Enable */
62 	MVS_STP_REG_SET_1	= 0x11C,
63 	MVS_TX_CFG		= 0x120, /* TX configuration */
64 	MVS_TX_LO		= 0x124, /* TX (delivery) ring addr */
65 	MVS_TX_HI		= 0x128,
66 
67 	MVS_TX_PROD_IDX		= 0x12C, /* TX producer pointer */
68 	MVS_TX_CONS_IDX		= 0x130, /* TX consumer pointer (RO) */
69 	MVS_RX_CFG		= 0x134, /* RX configuration */
70 	MVS_RX_LO		= 0x138, /* RX (completion) ring addr */
71 	MVS_RX_HI		= 0x13C,
72 	MVS_RX_CONS_IDX		= 0x140, /* RX consumer pointer (RO) */
73 
74 	MVS_INT_COAL		= 0x148, /* Int coalescing config */
75 	MVS_INT_COAL_TMOUT	= 0x14C, /* Int coalescing timeout */
76 	MVS_INT_STAT		= 0x150, /* Central int status */
77 	MVS_INT_MASK		= 0x154, /* Central int enable */
78 	MVS_INT_STAT_SRS_0	= 0x158, /* SATA register set status */
79 	MVS_INT_MASK_SRS_0	= 0x15C,
80 	MVS_INT_STAT_SRS_1	= 0x160,
81 	MVS_INT_MASK_SRS_1	= 0x164,
82 	MVS_NON_NCQ_ERR_0	= 0x168, /* SRS Non-specific NCQ Error */
83 	MVS_NON_NCQ_ERR_1	= 0x16C,
84 	MVS_CMD_ADDR		= 0x170, /* Command register port (addr) */
85 	MVS_CMD_DATA		= 0x174, /* Command register port (data) */
86 	MVS_MEM_PARITY_ERR	= 0x178, /* Memory parity error */
87 
88 					 /* ports 1-3 follow after this */
89 	MVS_P0_INT_STAT		= 0x180, /* port0 interrupt status */
90 	MVS_P0_INT_MASK		= 0x184, /* port0 interrupt mask */
91 					 /* ports 5-7 follow after this */
92 	MVS_P4_INT_STAT		= 0x1A0, /* Port4 interrupt status */
93 	MVS_P4_INT_MASK		= 0x1A4, /* Port4 interrupt enable mask */
94 
95 					 /* ports 1-3 follow after this */
96 	MVS_P0_SER_CTLSTAT	= 0x1D0, /* port0 serial control/status */
97 					 /* ports 5-7 follow after this */
98 	MVS_P4_SER_CTLSTAT	= 0x1E0, /* port4 serial control/status */
99 
100 					 /* ports 1-3 follow after this */
101 	MVS_P0_CFG_ADDR		= 0x200, /* port0 phy register address */
102 	MVS_P0_CFG_DATA		= 0x204, /* port0 phy register data */
103 					 /* ports 5-7 follow after this */
104 	MVS_P4_CFG_ADDR		= 0x220, /* Port4 config address */
105 	MVS_P4_CFG_DATA		= 0x224, /* Port4 config data */
106 
107 					 /* phys 1-3 follow after this */
108 	MVS_P0_VSR_ADDR		= 0x250, /* phy0 VSR address */
109 	MVS_P0_VSR_DATA		= 0x254, /* phy0 VSR data */
110 					 /* phys 1-3 follow after this */
111 					 /* multiplexing */
112 	MVS_P4_VSR_ADDR 	= 0x250, /* phy4 VSR address */
113 	MVS_P4_VSR_DATA 	= 0x254, /* phy4 VSR data */
114 	MVS_PA_VSR_ADDR		= 0x290, /* All port VSR addr */
115 	MVS_PA_VSR_PORT		= 0x294, /* All port VSR data */
116 	MVS_COMMAND_ACTIVE	= 0x300,
117 };
118 
119 enum pci_cfg_registers {
120 	PCR_PHY_CTL		= 0x40,
121 	PCR_PHY_CTL2		= 0x90,
122 	PCR_DEV_CTRL		= 0x78,
123 	PCR_LINK_STAT		= 0x82,
124 };
125 
126 /*  SAS/SATA Vendor Specific Port Registers */
127 enum sas_sata_vsp_regs {
128 	VSR_PHY_STAT		= 0x00 * 4, /* Phy Interrupt Status */
129 	VSR_PHY_MODE1		= 0x01 * 4, /* phy Interrupt Enable */
130 	VSR_PHY_MODE2		= 0x02 * 4, /* Phy Configuration */
131 	VSR_PHY_MODE3		= 0x03 * 4, /* Phy Status */
132 	VSR_PHY_MODE4		= 0x04 * 4, /* Phy Counter 0 */
133 	VSR_PHY_MODE5		= 0x05 * 4, /* Phy Counter 1 */
134 	VSR_PHY_MODE6		= 0x06 * 4, /* Event Counter Control */
135 	VSR_PHY_MODE7		= 0x07 * 4, /* Event Counter Select */
136 	VSR_PHY_MODE8		= 0x08 * 4, /* Event Counter 0 */
137 	VSR_PHY_MODE9		= 0x09 * 4, /* Event Counter 1 */
138 	VSR_PHY_MODE10		= 0x0A * 4, /* Event Counter 2 */
139 	VSR_PHY_MODE11		= 0x0B * 4, /* Event Counter 3 */
140 	VSR_PHY_ACT_LED		= 0x0C * 4, /* Activity LED control */
141 
142 	VSR_PHY_FFE_CONTROL	= 0x10C,
143 	VSR_PHY_DFE_UPDATE_CRTL	= 0x110,
144 	VSR_REF_CLOCK_CRTL	= 0x1A0,
145 };
146 
147 enum chip_register_bits {
148 	PHY_MIN_SPP_PHYS_LINK_RATE_MASK = (0x7 << 8),
149 	PHY_MAX_SPP_PHYS_LINK_RATE_MASK = (0x7 << 12),
150 	PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET = (16),
151 	PHY_NEG_SPP_PHYS_LINK_RATE_MASK =
152 			(0x3 << PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET),
153 };
154 
155 enum pci_interrupt_cause {
156 	/*  MAIN_IRQ_CAUSE (R10200) Bits*/
157 	MVS_IRQ_COM_IN_I2O_IOP0        = (1 << 0),
158 	MVS_IRQ_COM_IN_I2O_IOP1        = (1 << 1),
159 	MVS_IRQ_COM_IN_I2O_IOP2        = (1 << 2),
160 	MVS_IRQ_COM_IN_I2O_IOP3        = (1 << 3),
161 	MVS_IRQ_COM_OUT_I2O_HOS0       = (1 << 4),
162 	MVS_IRQ_COM_OUT_I2O_HOS1       = (1 << 5),
163 	MVS_IRQ_COM_OUT_I2O_HOS2       = (1 << 6),
164 	MVS_IRQ_COM_OUT_I2O_HOS3       = (1 << 7),
165 	MVS_IRQ_PCIF_TO_CPU_DRBL0      = (1 << 8),
166 	MVS_IRQ_PCIF_TO_CPU_DRBL1      = (1 << 9),
167 	MVS_IRQ_PCIF_TO_CPU_DRBL2      = (1 << 10),
168 	MVS_IRQ_PCIF_TO_CPU_DRBL3      = (1 << 11),
169 	MVS_IRQ_PCIF_DRBL0             = (1 << 12),
170 	MVS_IRQ_PCIF_DRBL1             = (1 << 13),
171 	MVS_IRQ_PCIF_DRBL2             = (1 << 14),
172 	MVS_IRQ_PCIF_DRBL3             = (1 << 15),
173 	MVS_IRQ_XOR_A                  = (1 << 16),
174 	MVS_IRQ_XOR_B                  = (1 << 17),
175 	MVS_IRQ_SAS_A                  = (1 << 18),
176 	MVS_IRQ_SAS_B                  = (1 << 19),
177 	MVS_IRQ_CPU_CNTRL              = (1 << 20),
178 	MVS_IRQ_GPIO                   = (1 << 21),
179 	MVS_IRQ_UART                   = (1 << 22),
180 	MVS_IRQ_SPI                    = (1 << 23),
181 	MVS_IRQ_I2C                    = (1 << 24),
182 	MVS_IRQ_SGPIO                  = (1 << 25),
183 	MVS_IRQ_COM_ERR                = (1 << 29),
184 	MVS_IRQ_I2O_ERR                = (1 << 30),
185 	MVS_IRQ_PCIE_ERR               = (1 << 31),
186 };
187 
188 union reg_phy_cfg {
189 	u32 v;
190 	struct {
191 		u32 phy_reset:1;
192 		u32 sas_support:1;
193 		u32 sata_support:1;
194 		u32 sata_host_mode:1;
195 		/*
196 		 * bit 2: 6Gbps support
197 		 * bit 1: 3Gbps support
198 		 * bit 0: 1.5Gbps support
199 		 */
200 		u32 speed_support:3;
201 		u32 snw_3_support:1;
202 		u32 tx_lnk_parity:1;
203 		/*
204 		 * bit 5: G1 (1.5Gbps) Without SSC
205 		 * bit 4: G1 (1.5Gbps) with SSC
206 		 * bit 3: G2 (3.0Gbps) Without SSC
207 		 * bit 2: G2 (3.0Gbps) with SSC
208 		 * bit 1: G3 (6.0Gbps) without SSC
209 		 * bit 0: G3 (6.0Gbps) with SSC
210 		 */
211 		u32 tx_spt_phs_lnk_rate:6;
212 		/* 8h: 1.5Gbps 9h: 3Gbps Ah: 6Gbps */
213 		u32 tx_lgcl_lnk_rate:4;
214 		u32 tx_ssc_type:1;
215 		u32 sata_spin_up_spt:1;
216 		u32 sata_spin_up_en:1;
217 		u32 bypass_oob:1;
218 		u32 disable_phy:1;
219 		u32 rsvd:8;
220 	} u;
221 };
222 
223 #define MAX_SG_ENTRY		255
224 
225 struct mvs_prd_imt {
226 #ifndef __BIG_ENDIAN
227 	__le32			len:22;
228 	u8			_r_a:2;
229 	u8			misc_ctl:4;
230 	u8			inter_sel:4;
231 #else
232 	u32			inter_sel:4;
233 	u32			misc_ctl:4;
234 	u32			_r_a:2;
235 	u32			len:22;
236 #endif
237 };
238 
239 struct mvs_prd {
240 	/* 64-bit buffer address */
241 	__le64			addr;
242 	/* 22-bit length */
243 	__le32			im_len;
244 } __attribute__ ((packed));
245 
246 enum sgpio_registers {
247 	MVS_SGPIO_HOST_OFFSET	= 0x100,	/* offset between hosts */
248 
249 	MVS_SGPIO_CFG0	= 0xc200,
250 	MVS_SGPIO_CFG0_ENABLE	= (1 << 0),	/* enable pins */
251 	MVS_SGPIO_CFG0_BLINKB	= (1 << 1),	/* blink generators */
252 	MVS_SGPIO_CFG0_BLINKA	= (1 << 2),
253 	MVS_SGPIO_CFG0_INVSCLK	= (1 << 3),	/* invert signal? */
254 	MVS_SGPIO_CFG0_INVSLOAD	= (1 << 4),
255 	MVS_SGPIO_CFG0_INVSDOUT	= (1 << 5),
256 	MVS_SGPIO_CFG0_SLOAD_FALLEDGE = (1 << 6),	/* rise/fall edge? */
257 	MVS_SGPIO_CFG0_SDOUT_FALLEDGE = (1 << 7),
258 	MVS_SGPIO_CFG0_SDIN_RISEEDGE = (1 << 8),
259 	MVS_SGPIO_CFG0_MAN_BITLEN_SHIFT = 18,	/* bits/frame manual mode */
260 	MVS_SGPIO_CFG0_AUT_BITLEN_SHIFT = 24,	/* bits/frame auto mode */
261 
262 	MVS_SGPIO_CFG1	= 0xc204,	/* blink timing register */
263 	MVS_SGPIO_CFG1_LOWA_SHIFT	= 0,	/* A off time */
264 	MVS_SGPIO_CFG1_HIA_SHIFT	= 4,	/* A on time */
265 	MVS_SGPIO_CFG1_LOWB_SHIFT	= 8,	/* B off time */
266 	MVS_SGPIO_CFG1_HIB_SHIFT	= 12,	/* B on time */
267 	MVS_SGPIO_CFG1_MAXACTON_SHIFT	= 16,	/* max activity on time */
268 
269 		/* force activity off time */
270 	MVS_SGPIO_CFG1_FORCEACTOFF_SHIFT	= 20,
271 		/* stretch activity on time */
272 	MVS_SGPIO_CFG1_STRCHACTON_SHIFT	= 24,
273 		/* stretch activiity off time */
274 	MVS_SGPIO_CFG1_STRCHACTOFF_SHIFT	= 28,
275 
276 
277 	MVS_SGPIO_CFG2	= 0xc208,	/* clock speed register */
278 	MVS_SGPIO_CFG2_CLK_SHIFT	= 0,
279 	MVS_SGPIO_CFG2_BLINK_SHIFT	= 20,
280 
281 	MVS_SGPIO_CTRL	= 0xc20c,	/* SDOUT/SDIN mode control */
282 	MVS_SGPIO_CTRL_SDOUT_AUTO	= 2,
283 	MVS_SGPIO_CTRL_SDOUT_SHIFT	= 2,
284 
285 	MVS_SGPIO_DSRC	= 0xc220,	/* map ODn bits to drives */
286 
287 	MVS_SGPIO_DCTRL	= 0xc238,
288 	MVS_SGPIO_DCTRL_ERR_SHIFT	= 0,
289 	MVS_SGPIO_DCTRL_LOC_SHIFT	= 3,
290 	MVS_SGPIO_DCTRL_ACT_SHIFT	= 5,
291 };
292 
293 enum sgpio_led_status {
294 	LED_OFF	= 0,
295 	LED_ON	= 1,
296 	LED_BLINKA	= 2,
297 	LED_BLINKA_INV	= 3,
298 	LED_BLINKA_SOF	= 4,
299 	LED_BLINKA_EOF	= 5,
300 	LED_BLINKB	= 6,
301 	LED_BLINKB_INV	= 7,
302 };
303 
304 #define DEFAULT_SGPIO_BITS ((LED_BLINKA_SOF << \
305 				MVS_SGPIO_DCTRL_ACT_SHIFT) << (8 * 3) | \
306 			(LED_BLINKA_SOF << \
307 				MVS_SGPIO_DCTRL_ACT_SHIFT) << (8 * 2) | \
308 			(LED_BLINKA_SOF << \
309 				MVS_SGPIO_DCTRL_ACT_SHIFT) << (8 * 1) | \
310 			(LED_BLINKA_SOF << \
311 				MVS_SGPIO_DCTRL_ACT_SHIFT) << (8 * 0))
312 
313 /*
314  * these registers are accessed through port vendor
315  * specific address/data registers
316  */
317 enum sas_sata_phy_regs {
318 	GENERATION_1_SETTING		= 0x118,
319 	GENERATION_1_2_SETTING		= 0x11C,
320 	GENERATION_2_3_SETTING		= 0x120,
321 	GENERATION_3_4_SETTING		= 0x124,
322 };
323 
324 #define SPI_CTRL_REG_94XX           	0xc800
325 #define SPI_ADDR_REG_94XX            	0xc804
326 #define SPI_WR_DATA_REG_94XX         0xc808
327 #define SPI_RD_DATA_REG_94XX         	0xc80c
328 #define SPI_CTRL_READ_94XX         	(1U << 2)
329 #define SPI_ADDR_VLD_94XX         	(1U << 1)
330 #define SPI_CTRL_SpiStart_94XX     	(1U << 0)
331 
332 static inline int
333 mv_ffc64(u64 v)
334 {
335 	u64 x = ~v;
336 	return x ? __ffs64(x) : -1;
337 }
338 
339 #define r_reg_set_enable(i) \
340 	(((i) > 31) ? mr32(MVS_STP_REG_SET_1) : \
341 	mr32(MVS_STP_REG_SET_0))
342 
343 #define w_reg_set_enable(i, tmp) \
344 	(((i) > 31) ? mw32(MVS_STP_REG_SET_1, tmp) : \
345 	mw32(MVS_STP_REG_SET_0, tmp))
346 
347 extern const struct mvs_dispatch mvs_94xx_dispatch;
348 #endif
349 
350