1 /*
2  * include/asm-mips/txx9/tx4927pcic.h
3  * TX4927 PCI controller definitions.
4  *
5  * This file is subject to the terms and conditions of the GNU General Public
6  * License.  See the file "COPYING" in the main directory of this archive
7  * for more details.
8  */
9 #ifndef __ASM_TXX9_TX4927PCIC_H
10 #define __ASM_TXX9_TX4927PCIC_H
11 
12 #include <linux/pci.h>
13 #include <linux/irqreturn.h>
14 
15 struct tx4927_pcic_reg {
16 	u32 pciid;
17 	u32 pcistatus;
18 	u32 pciccrev;
19 	u32 pcicfg1;
20 	u32 p2gm0plbase;		/* +10 */
21 	u32 p2gm0pubase;
22 	u32 p2gm1plbase;
23 	u32 p2gm1pubase;
24 	u32 p2gm2pbase;		/* +20 */
25 	u32 p2giopbase;
26 	u32 unused0;
27 	u32 pcisid;
28 	u32 unused1;		/* +30 */
29 	u32 pcicapptr;
30 	u32 unused2;
31 	u32 pcicfg2;
32 	u32 g2ptocnt;		/* +40 */
33 	u32 unused3[15];
34 	u32 g2pstatus;		/* +80 */
35 	u32 g2pmask;
36 	u32 pcisstatus;
37 	u32 pcimask;
38 	u32 p2gcfg;		/* +90 */
39 	u32 p2gstatus;
40 	u32 p2gmask;
41 	u32 p2gccmd;
42 	u32 unused4[24];		/* +a0 */
43 	u32 pbareqport;		/* +100 */
44 	u32 pbacfg;
45 	u32 pbastatus;
46 	u32 pbamask;
47 	u32 pbabm;		/* +110 */
48 	u32 pbacreq;
49 	u32 pbacgnt;
50 	u32 pbacstate;
51 	u64 g2pmgbase[3];		/* +120 */
52 	u64 g2piogbase;
53 	u32 g2pmmask[3];		/* +140 */
54 	u32 g2piomask;
55 	u64 g2pmpbase[3];		/* +150 */
56 	u64 g2piopbase;
57 	u32 pciccfg;		/* +170 */
58 	u32 pcicstatus;
59 	u32 pcicmask;
60 	u32 unused5;
61 	u64 p2gmgbase[3];		/* +180 */
62 	u64 p2giogbase;
63 	u32 g2pcfgadrs;		/* +1a0 */
64 	u32 g2pcfgdata;
65 	u32 unused6[8];
66 	u32 g2pintack;
67 	u32 g2pspc;
68 	u32 unused7[12];		/* +1d0 */
69 	u64 pdmca;		/* +200 */
70 	u64 pdmga;
71 	u64 pdmpa;
72 	u64 pdmctr;
73 	u64 pdmcfg;		/* +220 */
74 	u64 pdmsts;
75 };
76 
77 /* bits for PCICMD */
78 /* see PCI_COMMAND_XXX in linux/pci_regs.h */
79 
80 /* bits for PCISTAT */
81 /* see PCI_STATUS_XXX in linux/pci_regs.h */
82 
83 /* bits for IOBA/MBA */
84 /* see PCI_BASE_ADDRESS_XXX in linux/pci_regs.h */
85 
86 /* bits for G2PSTATUS/G2PMASK */
87 #define TX4927_PCIC_G2PSTATUS_ALL	0x00000003
88 #define TX4927_PCIC_G2PSTATUS_TTOE	0x00000002
89 #define TX4927_PCIC_G2PSTATUS_RTOE	0x00000001
90 
91 /* bits for PCIMASK (see also PCI_STATUS_XXX in linux/pci_regs.h */
92 #define TX4927_PCIC_PCISTATUS_ALL	0x0000f900
93 
94 /* bits for PBACFG */
95 #define TX4927_PCIC_PBACFG_FIXPA	0x00000008
96 #define TX4927_PCIC_PBACFG_RPBA 0x00000004
97 #define TX4927_PCIC_PBACFG_PBAEN	0x00000002
98 #define TX4927_PCIC_PBACFG_BMCEN	0x00000001
99 
100 /* bits for PBASTATUS/PBAMASK */
101 #define TX4927_PCIC_PBASTATUS_ALL	0x00000001
102 #define TX4927_PCIC_PBASTATUS_BM	0x00000001
103 
104 /* bits for G2PMnGBASE */
105 #define TX4927_PCIC_G2PMnGBASE_BSDIS	0x0000002000000000ULL
106 #define TX4927_PCIC_G2PMnGBASE_ECHG	0x0000001000000000ULL
107 
108 /* bits for G2PIOGBASE */
109 #define TX4927_PCIC_G2PIOGBASE_BSDIS	0x0000002000000000ULL
110 #define TX4927_PCIC_G2PIOGBASE_ECHG	0x0000001000000000ULL
111 
112 /* bits for PCICSTATUS/PCICMASK */
113 #define TX4927_PCIC_PCICSTATUS_ALL	0x000007b8
114 #define TX4927_PCIC_PCICSTATUS_PME	0x00000400
115 #define TX4927_PCIC_PCICSTATUS_TLB	0x00000200
116 #define TX4927_PCIC_PCICSTATUS_NIB	0x00000100
117 #define TX4927_PCIC_PCICSTATUS_ZIB	0x00000080
118 #define TX4927_PCIC_PCICSTATUS_PERR	0x00000020
119 #define TX4927_PCIC_PCICSTATUS_SERR	0x00000010
120 #define TX4927_PCIC_PCICSTATUS_GBE	0x00000008
121 #define TX4927_PCIC_PCICSTATUS_IWB	0x00000002
122 #define TX4927_PCIC_PCICSTATUS_E2PDONE	0x00000001
123 
124 /* bits for PCICCFG */
125 #define TX4927_PCIC_PCICCFG_GBWC_MASK	0x0fff0000
126 #define TX4927_PCIC_PCICCFG_HRST	0x00000800
127 #define TX4927_PCIC_PCICCFG_SRST	0x00000400
128 #define TX4927_PCIC_PCICCFG_IRBER	0x00000200
129 #define TX4927_PCIC_PCICCFG_G2PMEN(ch)	(0x00000100>>(ch))
130 #define TX4927_PCIC_PCICCFG_G2PM0EN	0x00000100
131 #define TX4927_PCIC_PCICCFG_G2PM1EN	0x00000080
132 #define TX4927_PCIC_PCICCFG_G2PM2EN	0x00000040
133 #define TX4927_PCIC_PCICCFG_G2PIOEN	0x00000020
134 #define TX4927_PCIC_PCICCFG_TCAR	0x00000010
135 #define TX4927_PCIC_PCICCFG_ICAEN	0x00000008
136 
137 /* bits for P2GMnGBASE */
138 #define TX4927_PCIC_P2GMnGBASE_TMEMEN	0x0000004000000000ULL
139 #define TX4927_PCIC_P2GMnGBASE_TBSDIS	0x0000002000000000ULL
140 #define TX4927_PCIC_P2GMnGBASE_TECHG	0x0000001000000000ULL
141 
142 /* bits for P2GIOGBASE */
143 #define TX4927_PCIC_P2GIOGBASE_TIOEN	0x0000004000000000ULL
144 #define TX4927_PCIC_P2GIOGBASE_TBSDIS	0x0000002000000000ULL
145 #define TX4927_PCIC_P2GIOGBASE_TECHG	0x0000001000000000ULL
146 
147 #define TX4927_PCIC_IDSEL_AD_TO_SLOT(ad)	((ad) - 11)
148 #define TX4927_PCIC_MAX_DEVNU	TX4927_PCIC_IDSEL_AD_TO_SLOT(32)
149 
150 /* bits for PDMCFG */
151 #define TX4927_PCIC_PDMCFG_RSTFIFO	0x00200000
152 #define TX4927_PCIC_PDMCFG_EXFER	0x00100000
153 #define TX4927_PCIC_PDMCFG_REQDLY_MASK	0x00003800
154 #define TX4927_PCIC_PDMCFG_REQDLY_NONE	(0 << 11)
155 #define TX4927_PCIC_PDMCFG_REQDLY_16	(1 << 11)
156 #define TX4927_PCIC_PDMCFG_REQDLY_32	(2 << 11)
157 #define TX4927_PCIC_PDMCFG_REQDLY_64	(3 << 11)
158 #define TX4927_PCIC_PDMCFG_REQDLY_128	(4 << 11)
159 #define TX4927_PCIC_PDMCFG_REQDLY_256	(5 << 11)
160 #define TX4927_PCIC_PDMCFG_REQDLY_512	(6 << 11)
161 #define TX4927_PCIC_PDMCFG_REQDLY_1024	(7 << 11)
162 #define TX4927_PCIC_PDMCFG_ERRIE	0x00000400
163 #define TX4927_PCIC_PDMCFG_NCCMPIE	0x00000200
164 #define TX4927_PCIC_PDMCFG_NTCMPIE	0x00000100
165 #define TX4927_PCIC_PDMCFG_CHNEN	0x00000080
166 #define TX4927_PCIC_PDMCFG_XFRACT	0x00000040
167 #define TX4927_PCIC_PDMCFG_BSWAP	0x00000020
168 #define TX4927_PCIC_PDMCFG_XFRSIZE_MASK 0x0000000c
169 #define TX4927_PCIC_PDMCFG_XFRSIZE_1DW	0x00000000
170 #define TX4927_PCIC_PDMCFG_XFRSIZE_1QW	0x00000004
171 #define TX4927_PCIC_PDMCFG_XFRSIZE_4QW	0x00000008
172 #define TX4927_PCIC_PDMCFG_XFRDIRC	0x00000002
173 #define TX4927_PCIC_PDMCFG_CHRST	0x00000001
174 
175 /* bits for PDMSTS */
176 #define TX4927_PCIC_PDMSTS_REQCNT_MASK	0x3f000000
177 #define TX4927_PCIC_PDMSTS_FIFOCNT_MASK 0x00f00000
178 #define TX4927_PCIC_PDMSTS_FIFOWP_MASK	0x000c0000
179 #define TX4927_PCIC_PDMSTS_FIFORP_MASK	0x00030000
180 #define TX4927_PCIC_PDMSTS_ERRINT	0x00000800
181 #define TX4927_PCIC_PDMSTS_DONEINT	0x00000400
182 #define TX4927_PCIC_PDMSTS_CHNEN	0x00000200
183 #define TX4927_PCIC_PDMSTS_XFRACT	0x00000100
184 #define TX4927_PCIC_PDMSTS_ACCMP	0x00000080
185 #define TX4927_PCIC_PDMSTS_NCCMP	0x00000040
186 #define TX4927_PCIC_PDMSTS_NTCMP	0x00000020
187 #define TX4927_PCIC_PDMSTS_CFGERR	0x00000008
188 #define TX4927_PCIC_PDMSTS_PCIERR	0x00000004
189 #define TX4927_PCIC_PDMSTS_CHNERR	0x00000002
190 #define TX4927_PCIC_PDMSTS_DATAERR	0x00000001
191 #define TX4927_PCIC_PDMSTS_ALL_CMP	0x000000e0
192 #define TX4927_PCIC_PDMSTS_ALL_ERR	0x0000000f
193 
194 struct tx4927_pcic_reg __iomem *get_tx4927_pcicptr(
195 	struct pci_controller *channel);
196 void tx4927_pcic_setup(struct tx4927_pcic_reg __iomem *pcicptr,
197 		       struct pci_controller *channel, int extarb);
198 void tx4927_report_pcic_status(void);
199 char *tx4927_pcibios_setup(char *str);
200 void tx4927_dump_pcic_settings(void);
201 irqreturn_t tx4927_pcierr_interrupt(int irq, void *dev_id);
202 
203 #endif /* __ASM_TXX9_TX4927PCIC_H */
204