1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * SH-X3 Prototype Setup
4 *
5 * Copyright (C) 2007 - 2010 Paul Mundt
6 */
7 #include <linux/platform_device.h>
8 #include <linux/init.h>
9 #include <linux/serial.h>
10 #include <linux/serial_sci.h>
11 #include <linux/io.h>
12 #include <linux/gpio.h>
13 #include <linux/sh_timer.h>
14 #include <linux/sh_intc.h>
15 #include <cpu/shx3.h>
16 #include <asm/mmzone.h>
17 #include <asm/platform_early.h>
18
19 /*
20 * This intentionally only registers SCIF ports 0, 1, and 3. SCIF 2
21 * INTEVT values overlap with the FPU EXPEVT ones, requiring special
22 * demuxing in the exception dispatch path.
23 *
24 * As this overlap is something that never should have made it in to
25 * silicon in the first place, we just refuse to deal with the port at
26 * all rather than adding infrastructure to hack around it.
27 */
28 static struct plat_sci_port scif0_platform_data = {
29 .scscr = SCSCR_REIE,
30 .type = PORT_SCIF,
31 };
32
33 static struct resource scif0_resources[] = {
34 DEFINE_RES_MEM(0xffc30000, 0x100),
35 DEFINE_RES_IRQ(evt2irq(0x700)),
36 DEFINE_RES_IRQ(evt2irq(0x720)),
37 DEFINE_RES_IRQ(evt2irq(0x760)),
38 DEFINE_RES_IRQ(evt2irq(0x740)),
39 };
40
41 static struct platform_device scif0_device = {
42 .name = "sh-sci",
43 .id = 0,
44 .resource = scif0_resources,
45 .num_resources = ARRAY_SIZE(scif0_resources),
46 .dev = {
47 .platform_data = &scif0_platform_data,
48 },
49 };
50
51 static struct plat_sci_port scif1_platform_data = {
52 .scscr = SCSCR_REIE,
53 .type = PORT_SCIF,
54 };
55
56 static struct resource scif1_resources[] = {
57 DEFINE_RES_MEM(0xffc40000, 0x100),
58 DEFINE_RES_IRQ(evt2irq(0x780)),
59 DEFINE_RES_IRQ(evt2irq(0x7a0)),
60 DEFINE_RES_IRQ(evt2irq(0x7e0)),
61 DEFINE_RES_IRQ(evt2irq(0x7c0)),
62 };
63
64 static struct platform_device scif1_device = {
65 .name = "sh-sci",
66 .id = 1,
67 .resource = scif1_resources,
68 .num_resources = ARRAY_SIZE(scif1_resources),
69 .dev = {
70 .platform_data = &scif1_platform_data,
71 },
72 };
73
74 static struct plat_sci_port scif2_platform_data = {
75 .scscr = SCSCR_REIE,
76 .type = PORT_SCIF,
77 };
78
79 static struct resource scif2_resources[] = {
80 DEFINE_RES_MEM(0xffc60000, 0x100),
81 DEFINE_RES_IRQ(evt2irq(0x880)),
82 DEFINE_RES_IRQ(evt2irq(0x8a0)),
83 DEFINE_RES_IRQ(evt2irq(0x8e0)),
84 DEFINE_RES_IRQ(evt2irq(0x8c0)),
85 };
86
87 static struct platform_device scif2_device = {
88 .name = "sh-sci",
89 .id = 2,
90 .resource = scif2_resources,
91 .num_resources = ARRAY_SIZE(scif2_resources),
92 .dev = {
93 .platform_data = &scif2_platform_data,
94 },
95 };
96
97 static struct sh_timer_config tmu0_platform_data = {
98 .channels_mask = 7,
99 };
100
101 static struct resource tmu0_resources[] = {
102 DEFINE_RES_MEM(0xffc10000, 0x30),
103 DEFINE_RES_IRQ(evt2irq(0x400)),
104 DEFINE_RES_IRQ(evt2irq(0x420)),
105 DEFINE_RES_IRQ(evt2irq(0x440)),
106 };
107
108 static struct platform_device tmu0_device = {
109 .name = "sh-tmu",
110 .id = 0,
111 .dev = {
112 .platform_data = &tmu0_platform_data,
113 },
114 .resource = tmu0_resources,
115 .num_resources = ARRAY_SIZE(tmu0_resources),
116 };
117
118 static struct sh_timer_config tmu1_platform_data = {
119 .channels_mask = 7,
120 };
121
122 static struct resource tmu1_resources[] = {
123 DEFINE_RES_MEM(0xffc20000, 0x2c),
124 DEFINE_RES_IRQ(evt2irq(0x460)),
125 DEFINE_RES_IRQ(evt2irq(0x480)),
126 DEFINE_RES_IRQ(evt2irq(0x4a0)),
127 };
128
129 static struct platform_device tmu1_device = {
130 .name = "sh-tmu",
131 .id = 1,
132 .dev = {
133 .platform_data = &tmu1_platform_data,
134 },
135 .resource = tmu1_resources,
136 .num_resources = ARRAY_SIZE(tmu1_resources),
137 };
138
139 static struct platform_device *shx3_early_devices[] __initdata = {
140 &scif0_device,
141 &scif1_device,
142 &scif2_device,
143 &tmu0_device,
144 &tmu1_device,
145 };
146
shx3_devices_setup(void)147 static int __init shx3_devices_setup(void)
148 {
149 return platform_add_devices(shx3_early_devices,
150 ARRAY_SIZE(shx3_early_devices));
151 }
152 arch_initcall(shx3_devices_setup);
153
plat_early_device_setup(void)154 void __init plat_early_device_setup(void)
155 {
156 sh_early_platform_add_devices(shx3_early_devices,
157 ARRAY_SIZE(shx3_early_devices));
158 }
159
160 enum {
161 UNUSED = 0,
162
163 /* interrupt sources */
164 IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
165 IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
166 IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
167 IRL_HHLL, IRL_HHLH, IRL_HHHL,
168 IRQ0, IRQ1, IRQ2, IRQ3,
169 HUDII,
170 TMU0, TMU1, TMU2, TMU3, TMU4, TMU5,
171 PCII0, PCII1, PCII2, PCII3, PCII4,
172 PCII5, PCII6, PCII7, PCII8, PCII9,
173 SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI,
174 SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI,
175 SCIF2_ERI, SCIF2_RXI, SCIF2_BRI, SCIF2_TXI,
176 SCIF3_ERI, SCIF3_RXI, SCIF3_BRI, SCIF3_TXI,
177 DMAC0_DMINT0, DMAC0_DMINT1, DMAC0_DMINT2, DMAC0_DMINT3,
178 DMAC0_DMINT4, DMAC0_DMINT5, DMAC0_DMAE,
179 DU,
180 DMAC1_DMINT6, DMAC1_DMINT7, DMAC1_DMINT8, DMAC1_DMINT9,
181 DMAC1_DMINT10, DMAC1_DMINT11, DMAC1_DMAE,
182 IIC, VIN0, VIN1, VCORE0, ATAPI,
183 DTU0, DTU1, DTU2, DTU3,
184 FE0, FE1,
185 GPIO0, GPIO1, GPIO2, GPIO3,
186 PAM, IRM,
187 INTICI0, INTICI1, INTICI2, INTICI3,
188 INTICI4, INTICI5, INTICI6, INTICI7,
189
190 /* interrupt groups */
191 IRL, PCII56789, SCIF0, SCIF1, SCIF2, SCIF3,
192 DMAC0, DMAC1,
193 };
194
195 static struct intc_vect vectors[] __initdata = {
196 INTC_VECT(HUDII, 0x3e0),
197 INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
198 INTC_VECT(TMU2, 0x440), INTC_VECT(TMU3, 0x460),
199 INTC_VECT(TMU4, 0x480), INTC_VECT(TMU5, 0x4a0),
200 INTC_VECT(PCII0, 0x500), INTC_VECT(PCII1, 0x520),
201 INTC_VECT(PCII2, 0x540), INTC_VECT(PCII3, 0x560),
202 INTC_VECT(PCII4, 0x580), INTC_VECT(PCII5, 0x5a0),
203 INTC_VECT(PCII6, 0x5c0), INTC_VECT(PCII7, 0x5e0),
204 INTC_VECT(PCII8, 0x600), INTC_VECT(PCII9, 0x620),
205 INTC_VECT(SCIF0_ERI, 0x700), INTC_VECT(SCIF0_RXI, 0x720),
206 INTC_VECT(SCIF0_BRI, 0x740), INTC_VECT(SCIF0_TXI, 0x760),
207 INTC_VECT(SCIF1_ERI, 0x780), INTC_VECT(SCIF1_RXI, 0x7a0),
208 INTC_VECT(SCIF1_BRI, 0x7c0), INTC_VECT(SCIF1_TXI, 0x7e0),
209 INTC_VECT(SCIF3_ERI, 0x880), INTC_VECT(SCIF3_RXI, 0x8a0),
210 INTC_VECT(SCIF3_BRI, 0x8c0), INTC_VECT(SCIF3_TXI, 0x8e0),
211 INTC_VECT(DMAC0_DMINT0, 0x900), INTC_VECT(DMAC0_DMINT1, 0x920),
212 INTC_VECT(DMAC0_DMINT2, 0x940), INTC_VECT(DMAC0_DMINT3, 0x960),
213 INTC_VECT(DMAC0_DMINT4, 0x980), INTC_VECT(DMAC0_DMINT5, 0x9a0),
214 INTC_VECT(DMAC0_DMAE, 0x9c0),
215 INTC_VECT(DU, 0x9e0),
216 INTC_VECT(DMAC1_DMINT6, 0xa00), INTC_VECT(DMAC1_DMINT7, 0xa20),
217 INTC_VECT(DMAC1_DMINT8, 0xa40), INTC_VECT(DMAC1_DMINT9, 0xa60),
218 INTC_VECT(DMAC1_DMINT10, 0xa80), INTC_VECT(DMAC1_DMINT11, 0xaa0),
219 INTC_VECT(DMAC1_DMAE, 0xac0),
220 INTC_VECT(IIC, 0xae0),
221 INTC_VECT(VIN0, 0xb00), INTC_VECT(VIN1, 0xb20),
222 INTC_VECT(VCORE0, 0xb00), INTC_VECT(ATAPI, 0xb60),
223 INTC_VECT(DTU0, 0xc00), INTC_VECT(DTU0, 0xc20),
224 INTC_VECT(DTU0, 0xc40),
225 INTC_VECT(DTU1, 0xc60), INTC_VECT(DTU1, 0xc80),
226 INTC_VECT(DTU1, 0xca0),
227 INTC_VECT(DTU2, 0xcc0), INTC_VECT(DTU2, 0xce0),
228 INTC_VECT(DTU2, 0xd00),
229 INTC_VECT(DTU3, 0xd20), INTC_VECT(DTU3, 0xd40),
230 INTC_VECT(DTU3, 0xd60),
231 INTC_VECT(FE0, 0xe00), INTC_VECT(FE1, 0xe20),
232 INTC_VECT(GPIO0, 0xe40), INTC_VECT(GPIO1, 0xe60),
233 INTC_VECT(GPIO2, 0xe80), INTC_VECT(GPIO3, 0xea0),
234 INTC_VECT(PAM, 0xec0), INTC_VECT(IRM, 0xee0),
235 INTC_VECT(INTICI0, 0xf00), INTC_VECT(INTICI1, 0xf20),
236 INTC_VECT(INTICI2, 0xf40), INTC_VECT(INTICI3, 0xf60),
237 INTC_VECT(INTICI4, 0xf80), INTC_VECT(INTICI5, 0xfa0),
238 INTC_VECT(INTICI6, 0xfc0), INTC_VECT(INTICI7, 0xfe0),
239 };
240
241 static struct intc_group groups[] __initdata = {
242 INTC_GROUP(IRL, IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
243 IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
244 IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
245 IRL_HHLL, IRL_HHLH, IRL_HHHL),
246 INTC_GROUP(PCII56789, PCII5, PCII6, PCII7, PCII8, PCII9),
247 INTC_GROUP(SCIF0, SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI),
248 INTC_GROUP(SCIF1, SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI),
249 INTC_GROUP(SCIF3, SCIF3_ERI, SCIF3_RXI, SCIF3_BRI, SCIF3_TXI),
250 INTC_GROUP(DMAC0, DMAC0_DMINT0, DMAC0_DMINT1, DMAC0_DMINT2,
251 DMAC0_DMINT3, DMAC0_DMINT4, DMAC0_DMINT5, DMAC0_DMAE),
252 INTC_GROUP(DMAC1, DMAC1_DMINT6, DMAC1_DMINT7, DMAC1_DMINT8,
253 DMAC1_DMINT9, DMAC1_DMINT10, DMAC1_DMINT11),
254 };
255
256 #define INT2DISTCR0 0xfe4108a0
257 #define INT2DISTCR1 0xfe4108a4
258 #define INT2DISTCR2 0xfe4108a8
259
260 static struct intc_mask_reg mask_registers[] __initdata = {
261 { 0xfe410030, 0xfe410050, 32, /* CnINTMSK0 / CnINTMSKCLR0 */
262 { IRQ0, IRQ1, IRQ2, IRQ3 } },
263 { 0xfe410040, 0xfe410060, 32, /* CnINTMSK1 / CnINTMSKCLR1 */
264 { IRL } },
265 { 0xfe410820, 0xfe410850, 32, /* CnINT2MSK0 / CnINT2MSKCLR0 */
266 { FE1, FE0, 0, ATAPI, VCORE0, VIN1, VIN0, IIC,
267 DU, GPIO3, GPIO2, GPIO1, GPIO0, PAM, 0, 0,
268 0, 0, 0, 0, 0, 0, 0, 0, /* HUDI bits ignored */
269 0, TMU5, TMU4, TMU3, TMU2, TMU1, TMU0, 0, },
270 INTC_SMP_BALANCING(INT2DISTCR0) },
271 { 0xfe410830, 0xfe410860, 32, /* CnINT2MSK1 / CnINT2MSKCLR1 */
272 { 0, 0, 0, 0, DTU3, DTU2, DTU1, DTU0, /* IRM bits ignored */
273 PCII9, PCII8, PCII7, PCII6, PCII5, PCII4, PCII3, PCII2,
274 PCII1, PCII0, DMAC1_DMAE, DMAC1_DMINT11,
275 DMAC1_DMINT10, DMAC1_DMINT9, DMAC1_DMINT8, DMAC1_DMINT7,
276 DMAC1_DMINT6, DMAC0_DMAE, DMAC0_DMINT5, DMAC0_DMINT4,
277 DMAC0_DMINT3, DMAC0_DMINT2, DMAC0_DMINT1, DMAC0_DMINT0 },
278 INTC_SMP_BALANCING(INT2DISTCR1) },
279 { 0xfe410840, 0xfe410870, 32, /* CnINT2MSK2 / CnINT2MSKCLR2 */
280 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
281 SCIF3_TXI, SCIF3_BRI, SCIF3_RXI, SCIF3_ERI,
282 SCIF2_TXI, SCIF2_BRI, SCIF2_RXI, SCIF2_ERI,
283 SCIF1_TXI, SCIF1_BRI, SCIF1_RXI, SCIF1_ERI,
284 SCIF0_TXI, SCIF0_BRI, SCIF0_RXI, SCIF0_ERI },
285 INTC_SMP_BALANCING(INT2DISTCR2) },
286 };
287
288 static struct intc_prio_reg prio_registers[] __initdata = {
289 { 0xfe410010, 0, 32, 4, /* INTPRI */ { IRQ0, IRQ1, IRQ2, IRQ3 } },
290
291 { 0xfe410800, 0, 32, 4, /* INT2PRI0 */ { 0, HUDII, TMU5, TMU4,
292 TMU3, TMU2, TMU1, TMU0 } },
293 { 0xfe410804, 0, 32, 4, /* INT2PRI1 */ { DTU3, DTU2, DTU1, DTU0,
294 SCIF3, SCIF2,
295 SCIF1, SCIF0 } },
296 { 0xfe410808, 0, 32, 4, /* INT2PRI2 */ { DMAC1, DMAC0,
297 PCII56789, PCII4,
298 PCII3, PCII2,
299 PCII1, PCII0 } },
300 { 0xfe41080c, 0, 32, 4, /* INT2PRI3 */ { FE1, FE0, ATAPI, VCORE0,
301 VIN1, VIN0, IIC, DU} },
302 { 0xfe410810, 0, 32, 4, /* INT2PRI4 */ { 0, 0, PAM, GPIO3,
303 GPIO2, GPIO1, GPIO0, IRM } },
304 { 0xfe410090, 0xfe4100a0, 32, 4, /* CnICIPRI / CnICIPRICLR */
305 { INTICI7, INTICI6, INTICI5, INTICI4,
306 INTICI3, INTICI2, INTICI1, INTICI0 }, INTC_SMP(4, 4) },
307 };
308
309 static DECLARE_INTC_DESC(intc_desc, "shx3", vectors, groups,
310 mask_registers, prio_registers, NULL);
311
312 /* Support for external interrupt pins in IRQ mode */
313 static struct intc_vect vectors_irq[] __initdata = {
314 INTC_VECT(IRQ0, 0x240), INTC_VECT(IRQ1, 0x280),
315 INTC_VECT(IRQ2, 0x2c0), INTC_VECT(IRQ3, 0x300),
316 };
317
318 static struct intc_sense_reg sense_registers[] __initdata = {
319 { 0xfe41001c, 32, 2, /* ICR1 */ { IRQ0, IRQ1, IRQ2, IRQ3 } },
320 };
321
322 static DECLARE_INTC_DESC(intc_desc_irq, "shx3-irq", vectors_irq, groups,
323 mask_registers, prio_registers, sense_registers);
324
325 /* External interrupt pins in IRL mode */
326 static struct intc_vect vectors_irl[] __initdata = {
327 INTC_VECT(IRL_LLLL, 0x200), INTC_VECT(IRL_LLLH, 0x220),
328 INTC_VECT(IRL_LLHL, 0x240), INTC_VECT(IRL_LLHH, 0x260),
329 INTC_VECT(IRL_LHLL, 0x280), INTC_VECT(IRL_LHLH, 0x2a0),
330 INTC_VECT(IRL_LHHL, 0x2c0), INTC_VECT(IRL_LHHH, 0x2e0),
331 INTC_VECT(IRL_HLLL, 0x300), INTC_VECT(IRL_HLLH, 0x320),
332 INTC_VECT(IRL_HLHL, 0x340), INTC_VECT(IRL_HLHH, 0x360),
333 INTC_VECT(IRL_HHLL, 0x380), INTC_VECT(IRL_HHLH, 0x3a0),
334 INTC_VECT(IRL_HHHL, 0x3c0),
335 };
336
337 static DECLARE_INTC_DESC(intc_desc_irl, "shx3-irl", vectors_irl, groups,
338 mask_registers, prio_registers, NULL);
339
plat_irq_setup_pins(int mode)340 void __init plat_irq_setup_pins(int mode)
341 {
342 int ret = 0;
343
344 switch (mode) {
345 case IRQ_MODE_IRQ:
346 ret |= gpio_request(GPIO_FN_IRQ3, intc_desc_irq.name);
347 ret |= gpio_request(GPIO_FN_IRQ2, intc_desc_irq.name);
348 ret |= gpio_request(GPIO_FN_IRQ1, intc_desc_irq.name);
349 ret |= gpio_request(GPIO_FN_IRQ0, intc_desc_irq.name);
350
351 if (unlikely(ret)) {
352 pr_err("Failed to set IRQ mode\n");
353 return;
354 }
355
356 register_intc_controller(&intc_desc_irq);
357 break;
358 case IRQ_MODE_IRL3210:
359 ret |= gpio_request(GPIO_FN_IRL3, intc_desc_irl.name);
360 ret |= gpio_request(GPIO_FN_IRL2, intc_desc_irl.name);
361 ret |= gpio_request(GPIO_FN_IRL1, intc_desc_irl.name);
362 ret |= gpio_request(GPIO_FN_IRL0, intc_desc_irl.name);
363
364 if (unlikely(ret)) {
365 pr_err("Failed to set IRL mode\n");
366 return;
367 }
368
369 register_intc_controller(&intc_desc_irl);
370 break;
371 default:
372 BUG();
373 }
374 }
375
plat_irq_setup(void)376 void __init plat_irq_setup(void)
377 {
378 register_intc_controller(&intc_desc);
379 }
380
plat_mem_setup(void)381 void __init plat_mem_setup(void)
382 {
383 unsigned int nid = 1;
384
385 /* Register CPU#0 URAM space as Node 1 */
386 setup_bootmem_node(nid++, 0x145f0000, 0x14610000); /* CPU0 */
387
388 #if 0
389 /* XXX: Not yet.. */
390 setup_bootmem_node(nid++, 0x14df0000, 0x14e10000); /* CPU1 */
391 setup_bootmem_node(nid++, 0x155f0000, 0x15610000); /* CPU2 */
392 setup_bootmem_node(nid++, 0x15df0000, 0x15e10000); /* CPU3 */
393 #endif
394
395 setup_bootmem_node(nid++, 0x16000000, 0x16020000); /* CSM */
396 }
397