]> nv-tegra.nvidia Code Review - linux-3.10.git/blob - arch/sh/kernel/cpu/sh4a/setup-sh7780.c
Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6
[linux-3.10.git] / arch / sh / kernel / cpu / sh4a / setup-sh7780.c
1 /*
2  * SH7780 Setup
3  *
4  *  Copyright (C) 2006  Paul Mundt
5  *
6  * This file is subject to the terms and conditions of the GNU General Public
7  * License.  See the file "COPYING" in the main directory of this archive
8  * for more details.
9  */
10 #include <linux/platform_device.h>
11 #include <linux/init.h>
12 #include <linux/serial.h>
13 #include <linux/io.h>
14 #include <asm/sci.h>
15
16 static struct resource rtc_resources[] = {
17         [0] = {
18                 .start  = 0xffe80000,
19                 .end    = 0xffe80000 + 0x58 - 1,
20                 .flags  = IORESOURCE_IO,
21         },
22         [1] = {
23                 /* Period IRQ */
24                 .start  = 21,
25                 .flags  = IORESOURCE_IRQ,
26         },
27         [2] = {
28                 /* Carry IRQ */
29                 .start  = 22,
30                 .flags  = IORESOURCE_IRQ,
31         },
32         [3] = {
33                 /* Alarm IRQ */
34                 .start  = 20,
35                 .flags  = IORESOURCE_IRQ,
36         },
37 };
38
39 static struct platform_device rtc_device = {
40         .name           = "sh-rtc",
41         .id             = -1,
42         .num_resources  = ARRAY_SIZE(rtc_resources),
43         .resource       = rtc_resources,
44 };
45
46 static struct plat_sci_port sci_platform_data[] = {
47         {
48                 .mapbase        = 0xffe00000,
49                 .flags          = UPF_BOOT_AUTOCONF,
50                 .type           = PORT_SCIF,
51                 .irqs           = { 40, 41, 43, 42 },
52         }, {
53                 .mapbase        = 0xffe10000,
54                 .flags          = UPF_BOOT_AUTOCONF,
55                 .type           = PORT_SCIF,
56                 .irqs           = { 76, 77, 79, 78 },
57         }, {
58                 .flags = 0,
59         }
60 };
61
62 static struct platform_device sci_device = {
63         .name           = "sh-sci",
64         .id             = -1,
65         .dev            = {
66                 .platform_data  = sci_platform_data,
67         },
68 };
69
70 static struct platform_device *sh7780_devices[] __initdata = {
71         &rtc_device,
72         &sci_device,
73 };
74
75 static int __init sh7780_devices_setup(void)
76 {
77         return platform_add_devices(sh7780_devices,
78                                     ARRAY_SIZE(sh7780_devices));
79 }
80 __initcall(sh7780_devices_setup);
81
82 enum {
83         UNUSED = 0,
84
85         /* interrupt sources */
86
87         IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
88         IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
89         IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
90         IRL_HHLL, IRL_HHLH, IRL_HHHL,
91
92         IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7,
93         RTC_ATI, RTC_PRI, RTC_CUI,
94         WDT,
95         TMU0, TMU1, TMU2, TMU2_TICPI,
96         HUDI,
97         DMAC0_DMINT0, DMAC0_DMINT1, DMAC0_DMINT2, DMAC0_DMINT3, DMAC0_DMAE,
98         SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI,
99         DMAC0_DMINT4, DMAC0_DMINT5, DMAC1_DMINT6, DMAC1_DMINT7,
100         CMT, HAC,
101         PCISERR, PCIINTA, PCIINTB, PCIINTC, PCIINTD,
102         PCIERR, PCIPWD3, PCIPWD2, PCIPWD1, PCIPWD0,
103         SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI,
104         SIOF, HSPI,
105         MMCIF_FSTAT, MMCIF_TRAN, MMCIF_ERR, MMCIF_FRDY,
106         DMAC1_DMINT8, DMAC1_DMINT9, DMAC1_DMINT10, DMAC1_DMINT11,
107         TMU3, TMU4, TMU5,
108         SSI,
109         FLCTL_FLSTE, FLCTL_FLEND, FLCTL_FLTRQ0, FLCTL_FLTRQ1,
110         GPIOI0, GPIOI1, GPIOI2, GPIOI3,
111
112         /* interrupt groups */
113
114         RTC, TMU012, DMAC0, SCIF0, DMAC45, DMAC1,
115         PCIC5, SCIF1, MMCIF, TMU345, FLCTL, GPIO,
116 };
117
118 static struct intc_vect vectors[] __initdata = {
119         INTC_VECT(RTC_ATI, 0x480), INTC_VECT(RTC_PRI, 0x4a0),
120         INTC_VECT(RTC_CUI, 0x4c0),
121         INTC_VECT(WDT, 0x560),
122         INTC_VECT(TMU0, 0x580), INTC_VECT(TMU1, 0x5a0),
123         INTC_VECT(TMU2, 0x5c0), INTC_VECT(TMU2_TICPI, 0x5e0),
124         INTC_VECT(HUDI, 0x600),
125         INTC_VECT(DMAC0_DMINT0, 0x640), INTC_VECT(DMAC0_DMINT1, 0x660),
126         INTC_VECT(DMAC0_DMINT2, 0x680), INTC_VECT(DMAC0_DMINT3, 0x6a0),
127         INTC_VECT(DMAC0_DMAE, 0x6c0),
128         INTC_VECT(SCIF0_ERI, 0x700), INTC_VECT(SCIF0_RXI, 0x720),
129         INTC_VECT(SCIF0_BRI, 0x740), INTC_VECT(SCIF0_TXI, 0x760),
130         INTC_VECT(DMAC0_DMINT4, 0x780), INTC_VECT(DMAC0_DMINT5, 0x7a0),
131         INTC_VECT(DMAC1_DMINT6, 0x7c0), INTC_VECT(DMAC1_DMINT7, 0x7e0),
132         INTC_VECT(CMT, 0x900), INTC_VECT(HAC, 0x980),
133         INTC_VECT(PCISERR, 0xa00), INTC_VECT(PCIINTA, 0xa20),
134         INTC_VECT(PCIINTB, 0xa40), INTC_VECT(PCIINTC, 0xa60),
135         INTC_VECT(PCIINTD, 0xa80), INTC_VECT(PCIERR, 0xaa0),
136         INTC_VECT(PCIPWD3, 0xac0), INTC_VECT(PCIPWD2, 0xae0),
137         INTC_VECT(PCIPWD1, 0xb00), INTC_VECT(PCIPWD0, 0xb20),
138         INTC_VECT(SCIF1_ERI, 0xb80), INTC_VECT(SCIF1_RXI, 0xba0),
139         INTC_VECT(SCIF1_BRI, 0xbc0), INTC_VECT(SCIF1_TXI, 0xbe0),
140         INTC_VECT(SIOF, 0xc00), INTC_VECT(HSPI, 0xc80),
141         INTC_VECT(MMCIF_FSTAT, 0xd00), INTC_VECT(MMCIF_TRAN, 0xd20),
142         INTC_VECT(MMCIF_ERR, 0xd40), INTC_VECT(MMCIF_FRDY, 0xd60),
143         INTC_VECT(DMAC1_DMINT8, 0xd80), INTC_VECT(DMAC1_DMINT9, 0xda0),
144         INTC_VECT(DMAC1_DMINT10, 0xdc0), INTC_VECT(DMAC1_DMINT11, 0xde0),
145         INTC_VECT(TMU3, 0xe00), INTC_VECT(TMU4, 0xe20),
146         INTC_VECT(TMU5, 0xe40),
147         INTC_VECT(SSI, 0xe80),
148         INTC_VECT(FLCTL_FLSTE, 0xf00), INTC_VECT(FLCTL_FLEND, 0xf20),
149         INTC_VECT(FLCTL_FLTRQ0, 0xf40), INTC_VECT(FLCTL_FLTRQ1, 0xf60),
150         INTC_VECT(GPIOI0, 0xf80), INTC_VECT(GPIOI1, 0xfa0),
151         INTC_VECT(GPIOI2, 0xfc0), INTC_VECT(GPIOI3, 0xfe0),
152 };
153
154 static struct intc_group groups[] __initdata = {
155         INTC_GROUP(RTC, RTC_ATI, RTC_PRI, RTC_CUI),
156         INTC_GROUP(TMU012, TMU0, TMU1, TMU2, TMU2_TICPI),
157         INTC_GROUP(DMAC0, DMAC0_DMINT0, DMAC0_DMINT1, DMAC0_DMINT2,
158                    DMAC0_DMINT3, DMAC0_DMINT4, DMAC0_DMINT5, DMAC0_DMAE),
159         INTC_GROUP(SCIF0, SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI),
160         INTC_GROUP(DMAC1, DMAC1_DMINT6, DMAC1_DMINT7, DMAC1_DMINT8,
161                    DMAC1_DMINT9, DMAC1_DMINT10, DMAC1_DMINT11),
162         INTC_GROUP(PCIC5, PCIERR, PCIPWD3, PCIPWD2, PCIPWD1, PCIPWD0),
163         INTC_GROUP(SCIF1, SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI),
164         INTC_GROUP(MMCIF, MMCIF_FSTAT, MMCIF_TRAN, MMCIF_ERR, MMCIF_FRDY),
165         INTC_GROUP(TMU345, TMU3, TMU4, TMU5),
166         INTC_GROUP(FLCTL, FLCTL_FLSTE, FLCTL_FLEND,
167                    FLCTL_FLTRQ0, FLCTL_FLTRQ1),
168         INTC_GROUP(GPIO, GPIOI0, GPIOI1, GPIOI2, GPIOI3),
169 };
170
171 static struct intc_prio priorities[] __initdata = {
172         INTC_PRIO(SCIF0, 3),
173         INTC_PRIO(SCIF1, 3),
174 };
175
176 static struct intc_mask_reg mask_registers[] __initdata = {
177         { 0xffd40038, 0xffd4003c, 32, /* INT2MSKR / INT2MSKCR */
178           { 0, 0, 0, 0, 0, 0, GPIO, FLCTL,
179             SSI, MMCIF, HSPI, SIOF, PCIC5, PCIINTD, PCIINTC, PCIINTB,
180             PCIINTA, PCISERR, HAC, CMT, 0, 0, DMAC1, DMAC0,
181             HUDI, 0, WDT, SCIF1, SCIF0, RTC, TMU345, TMU012 } },
182 };
183
184 static struct intc_prio_reg prio_registers[] __initdata = {
185         { 0xffd40000, 0, 32, 8, /* INT2PRI0 */ { TMU0, TMU1,
186                                                  TMU2, TMU2_TICPI } },
187         { 0xffd40004, 0, 32, 8, /* INT2PRI1 */ { TMU3, TMU4, TMU5, RTC } },
188         { 0xffd40008, 0, 32, 8, /* INT2PRI2 */ { SCIF0, SCIF1, WDT } },
189         { 0xffd4000c, 0, 32, 8, /* INT2PRI3 */ { HUDI, DMAC0, DMAC1 } },
190         { 0xffd40010, 0, 32, 8, /* INT2PRI4 */ { CMT, HAC,
191                                                  PCISERR, PCIINTA, } },
192         { 0xffd40014, 0, 32, 8, /* INT2PRI5 */ { PCIINTB, PCIINTC,
193                                                  PCIINTD, PCIC5 } },
194         { 0xffd40018, 0, 32, 8, /* INT2PRI6 */ { SIOF, HSPI, MMCIF, SSI } },
195         { 0xffd4001c, 0, 32, 8, /* INT2PRI7 */ { FLCTL, GPIO } },
196 };
197
198 static DECLARE_INTC_DESC(intc_desc, "sh7780", vectors, groups, priorities,
199                          mask_registers, prio_registers, NULL);
200
201 /* Support for external interrupt pins in IRQ mode */
202
203 static struct intc_vect irq_vectors[] __initdata = {
204         INTC_VECT(IRQ0, 0x240), INTC_VECT(IRQ1, 0x280),
205         INTC_VECT(IRQ2, 0x2c0), INTC_VECT(IRQ3, 0x300),
206         INTC_VECT(IRQ4, 0x340), INTC_VECT(IRQ5, 0x380),
207         INTC_VECT(IRQ6, 0x3c0), INTC_VECT(IRQ7, 0x200),
208 };
209
210 static struct intc_mask_reg irq_mask_registers[] __initdata = {
211         { 0xffd00044, 0xffd00064, 32, /* INTMSK0 / INTMSKCLR0 */
212           { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
213 };
214
215 static struct intc_prio_reg irq_prio_registers[] __initdata = {
216         { 0xffd00010, 0, 32, 4, /* INTPRI */ { IRQ0, IRQ1, IRQ2, IRQ3,
217                                                IRQ4, IRQ5, IRQ6, IRQ7 } },
218 };
219
220 static struct intc_sense_reg irq_sense_registers[] __initdata = {
221         { 0xffd0001c, 32, 2, /* ICR1 */   { IRQ0, IRQ1, IRQ2, IRQ3,
222                                             IRQ4, IRQ5, IRQ6, IRQ7 } },
223 };
224
225 static DECLARE_INTC_DESC(intc_irq_desc, "sh7780-irq", irq_vectors,
226                          NULL, NULL, irq_mask_registers, irq_prio_registers,
227                          irq_sense_registers);
228
229 /* External interrupt pins in IRL mode */
230
231 static struct intc_vect irl_vectors[] __initdata = {
232         INTC_VECT(IRL_LLLL, 0x200), INTC_VECT(IRL_LLLH, 0x220),
233         INTC_VECT(IRL_LLHL, 0x240), INTC_VECT(IRL_LLHH, 0x260),
234         INTC_VECT(IRL_LHLL, 0x280), INTC_VECT(IRL_LHLH, 0x2a0),
235         INTC_VECT(IRL_LHHL, 0x2c0), INTC_VECT(IRL_LHHH, 0x2e0),
236         INTC_VECT(IRL_HLLL, 0x300), INTC_VECT(IRL_HLLH, 0x320),
237         INTC_VECT(IRL_HLHL, 0x340), INTC_VECT(IRL_HLHH, 0x360),
238         INTC_VECT(IRL_HHLL, 0x380), INTC_VECT(IRL_HHLH, 0x3a0),
239         INTC_VECT(IRL_HHHL, 0x3c0),
240 };
241
242 static struct intc_mask_reg irl3210_mask_registers[] __initdata = {
243         { 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
244           { IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
245             IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
246             IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
247             IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
248 };
249
250 static struct intc_mask_reg irl7654_mask_registers[] __initdata = {
251         { 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
252           { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
253             IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
254             IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
255             IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
256             IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
257 };
258
259 static DECLARE_INTC_DESC(intc_irl7654_desc, "sh7780-irl7654", irl_vectors,
260                          NULL, NULL, irl7654_mask_registers, NULL, NULL);
261
262 static DECLARE_INTC_DESC(intc_irl3210_desc, "sh7780-irl3210", irl_vectors,
263                          NULL, NULL, irl3210_mask_registers, NULL, NULL);
264
265 #define INTC_ICR0       0xffd00000
266 #define INTC_INTMSK0    0xffd00044
267 #define INTC_INTMSK1    0xffd00048
268 #define INTC_INTMSK2    0xffd40080
269 #define INTC_INTMSKCLR1 0xffd00068
270 #define INTC_INTMSKCLR2 0xffd40084
271
272 void __init plat_irq_setup(void)
273 {
274         /* disable IRQ7-0 */
275         ctrl_outl(0xff000000, INTC_INTMSK0);
276
277         /* disable IRL3-0 + IRL7-4 */
278         ctrl_outl(0xc0000000, INTC_INTMSK1);
279         ctrl_outl(0xfffefffe, INTC_INTMSK2);
280
281         /* select IRL mode for IRL3-0 + IRL7-4 */
282         ctrl_outl(ctrl_inl(INTC_ICR0) & ~0x00c00000, INTC_ICR0);
283
284         /* disable holding function, ie enable "SH-4 Mode" */
285         ctrl_outl(ctrl_inl(INTC_ICR0) | 0x00200000, INTC_ICR0);
286
287         register_intc_controller(&intc_desc);
288 }
289
290 void __init plat_irq_setup_pins(int mode)
291 {
292         switch (mode) {
293         case IRQ_MODE_IRQ:
294                 /* select IRQ mode for IRL3-0 + IRL7-4 */
295                 ctrl_outl(ctrl_inl(INTC_ICR0) | 0x00c00000, INTC_ICR0);
296                 register_intc_controller(&intc_irq_desc);
297                 break;
298         case IRQ_MODE_IRL7654:
299                 /* enable IRL7-4 but don't provide any masking */
300                 ctrl_outl(0x40000000, INTC_INTMSKCLR1);
301                 ctrl_outl(0x0000fffe, INTC_INTMSKCLR2);
302                 break;
303         case IRQ_MODE_IRL3210:
304                 /* enable IRL0-3 but don't provide any masking */
305                 ctrl_outl(0x80000000, INTC_INTMSKCLR1);
306                 ctrl_outl(0xfffe0000, INTC_INTMSKCLR2);
307                 break;
308         case IRQ_MODE_IRL7654_MASK:
309                 /* enable IRL7-4 and mask using cpu intc controller */
310                 ctrl_outl(0x40000000, INTC_INTMSKCLR1);
311                 register_intc_controller(&intc_irl7654_desc);
312                 break;
313         case IRQ_MODE_IRL3210_MASK:
314                 /* enable IRL0-3 and mask using cpu intc controller */
315                 ctrl_outl(0x80000000, INTC_INTMSKCLR1);
316                 register_intc_controller(&intc_irl3210_desc);
317                 break;
318         default:
319                 BUG();
320         }
321 }