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  • only in /asuswrt-rt-n18u-9.0.0.4.380.2695/release/src-rt-6.x.4708/linux/linux-2.6.36/arch/sh/kernel/cpu/sh2a/
1/*
2 * SH7206 Setup
3 *
4 *  Copyright (C) 2006  Yoshinori Sato
5 *  Copyright (C) 2009  Paul Mundt
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License.  See the file "COPYING" in the main directory of this archive
9 * for more details.
10 */
11#include <linux/platform_device.h>
12#include <linux/init.h>
13#include <linux/serial.h>
14#include <linux/serial_sci.h>
15#include <linux/sh_timer.h>
16#include <linux/io.h>
17
18enum {
19	UNUSED = 0,
20
21	/* interrupt sources */
22	IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7,
23	PINT0, PINT1, PINT2, PINT3, PINT4, PINT5, PINT6, PINT7,
24	ADC_ADI0, ADC_ADI1,
25
26	DMAC0, DMAC1, DMAC2, DMAC3, DMAC4, DMAC5, DMAC6, DMAC7,
27
28	MTU0_ABCD, MTU0_VEF, MTU1_AB, MTU1_VU, MTU2_AB, MTU2_VU,
29	MTU3_ABCD, MTU4_ABCD, MTU5, POE2_12, MTU3S_ABCD, MTU4S_ABCD, MTU5S,
30	IIC3,
31
32	CMT0, CMT1, BSC, WDT,
33
34	MTU2_TCI3V, MTU2_TCI4V, MTU2S_TCI3V, MTU2S_TCI4V,
35
36	POE2_OEI3,
37
38	SCIF0, SCIF1, SCIF2, SCIF3,
39
40	/* interrupt groups */
41	PINT,
42};
43
44static struct intc_vect vectors[] __initdata = {
45	INTC_IRQ(IRQ0, 64), INTC_IRQ(IRQ1, 65),
46	INTC_IRQ(IRQ2, 66), INTC_IRQ(IRQ3, 67),
47	INTC_IRQ(IRQ4, 68), INTC_IRQ(IRQ5, 69),
48	INTC_IRQ(IRQ6, 70), INTC_IRQ(IRQ7, 71),
49	INTC_IRQ(PINT0, 80), INTC_IRQ(PINT1, 81),
50	INTC_IRQ(PINT2, 82), INTC_IRQ(PINT3, 83),
51	INTC_IRQ(PINT4, 84), INTC_IRQ(PINT5, 85),
52	INTC_IRQ(PINT6, 86), INTC_IRQ(PINT7, 87),
53	INTC_IRQ(ADC_ADI0, 92), INTC_IRQ(ADC_ADI1, 96),
54	INTC_IRQ(DMAC0, 108), INTC_IRQ(DMAC0, 109),
55	INTC_IRQ(DMAC1, 112), INTC_IRQ(DMAC1, 113),
56	INTC_IRQ(DMAC2, 116), INTC_IRQ(DMAC2, 117),
57	INTC_IRQ(DMAC3, 120), INTC_IRQ(DMAC3, 121),
58	INTC_IRQ(DMAC4, 124), INTC_IRQ(DMAC4, 125),
59	INTC_IRQ(DMAC5, 128), INTC_IRQ(DMAC5, 129),
60	INTC_IRQ(DMAC6, 132), INTC_IRQ(DMAC6, 133),
61	INTC_IRQ(DMAC7, 136), INTC_IRQ(DMAC7, 137),
62	INTC_IRQ(CMT0, 140), INTC_IRQ(CMT1, 144),
63	INTC_IRQ(BSC, 148), INTC_IRQ(WDT, 152),
64	INTC_IRQ(MTU0_ABCD, 156), INTC_IRQ(MTU0_ABCD, 157),
65	INTC_IRQ(MTU0_ABCD, 158), INTC_IRQ(MTU0_ABCD, 159),
66	INTC_IRQ(MTU0_VEF, 160), INTC_IRQ(MTU0_VEF, 161),
67	INTC_IRQ(MTU0_VEF, 162),
68	INTC_IRQ(MTU1_AB, 164), INTC_IRQ(MTU1_AB, 165),
69	INTC_IRQ(MTU1_VU, 168), INTC_IRQ(MTU1_VU, 169),
70	INTC_IRQ(MTU2_AB, 172), INTC_IRQ(MTU2_AB, 173),
71	INTC_IRQ(MTU2_VU, 176), INTC_IRQ(MTU2_VU, 177),
72	INTC_IRQ(MTU3_ABCD, 180), INTC_IRQ(MTU3_ABCD, 181),
73	INTC_IRQ(MTU3_ABCD, 182), INTC_IRQ(MTU3_ABCD, 183),
74	INTC_IRQ(MTU2_TCI3V, 184),
75	INTC_IRQ(MTU4_ABCD, 188), INTC_IRQ(MTU4_ABCD, 189),
76	INTC_IRQ(MTU4_ABCD, 190), INTC_IRQ(MTU4_ABCD, 191),
77	INTC_IRQ(MTU2_TCI4V, 192),
78	INTC_IRQ(MTU5, 196), INTC_IRQ(MTU5, 197),
79	INTC_IRQ(MTU5, 198),
80	INTC_IRQ(POE2_12, 200), INTC_IRQ(POE2_12, 201),
81	INTC_IRQ(MTU3S_ABCD, 204), INTC_IRQ(MTU3S_ABCD, 205),
82	INTC_IRQ(MTU3S_ABCD, 206), INTC_IRQ(MTU3S_ABCD, 207),
83	INTC_IRQ(MTU2S_TCI3V, 208),
84	INTC_IRQ(MTU4S_ABCD, 212), INTC_IRQ(MTU4S_ABCD, 213),
85	INTC_IRQ(MTU4S_ABCD, 214), INTC_IRQ(MTU4S_ABCD, 215),
86	INTC_IRQ(MTU2S_TCI4V, 216),
87	INTC_IRQ(MTU5S, 220), INTC_IRQ(MTU5S, 221),
88	INTC_IRQ(MTU5S, 222),
89	INTC_IRQ(POE2_OEI3, 224),
90	INTC_IRQ(IIC3, 228), INTC_IRQ(IIC3, 229),
91	INTC_IRQ(IIC3, 230), INTC_IRQ(IIC3, 231),
92	INTC_IRQ(IIC3, 232),
93	INTC_IRQ(SCIF0, 240), INTC_IRQ(SCIF0, 241),
94	INTC_IRQ(SCIF0, 242), INTC_IRQ(SCIF0, 243),
95	INTC_IRQ(SCIF1, 244), INTC_IRQ(SCIF1, 245),
96	INTC_IRQ(SCIF1, 246), INTC_IRQ(SCIF1, 247),
97	INTC_IRQ(SCIF2, 248), INTC_IRQ(SCIF2, 249),
98	INTC_IRQ(SCIF2, 250), INTC_IRQ(SCIF2, 251),
99	INTC_IRQ(SCIF3, 252), INTC_IRQ(SCIF3, 253),
100	INTC_IRQ(SCIF3, 254), INTC_IRQ(SCIF3, 255),
101};
102
103static struct intc_group groups[] __initdata = {
104	INTC_GROUP(PINT, PINT0, PINT1, PINT2, PINT3,
105		   PINT4, PINT5, PINT6, PINT7),
106};
107
108static struct intc_prio_reg prio_registers[] __initdata = {
109	{ 0xfffe0818, 0, 16, 4, /* IPR01 */ { IRQ0, IRQ1, IRQ2, IRQ3 } },
110	{ 0xfffe081a, 0, 16, 4, /* IPR02 */ { IRQ4, IRQ5, IRQ6, IRQ7 } },
111	{ 0xfffe0820, 0, 16, 4, /* IPR05 */ { PINT, 0, ADC_ADI0, ADC_ADI1 } },
112	{ 0xfffe0c00, 0, 16, 4, /* IPR06 */ { DMAC0, DMAC1, DMAC2, DMAC3 } },
113	{ 0xfffe0c02, 0, 16, 4, /* IPR07 */ { DMAC4, DMAC5, DMAC6, DMAC7 } },
114	{ 0xfffe0c04, 0, 16, 4, /* IPR08 */ { CMT0, CMT1, BSC, WDT } },
115	{ 0xfffe0c06, 0, 16, 4, /* IPR09 */ { MTU0_ABCD, MTU0_VEF,
116					      MTU1_AB, MTU1_VU } },
117	{ 0xfffe0c08, 0, 16, 4, /* IPR10 */ { MTU2_AB, MTU2_VU,
118					      MTU3_ABCD, MTU2_TCI3V } },
119	{ 0xfffe0c0a, 0, 16, 4, /* IPR11 */ { MTU4_ABCD, MTU2_TCI4V,
120					      MTU5, POE2_12 } },
121	{ 0xfffe0c0c, 0, 16, 4, /* IPR12 */ { MTU3S_ABCD, MTU2S_TCI3V,
122					      MTU4S_ABCD, MTU2S_TCI4V } },
123	{ 0xfffe0c0e, 0, 16, 4, /* IPR13 */ { MTU5S, POE2_OEI3, IIC3, 0 } },
124	{ 0xfffe0c10, 0, 16, 4, /* IPR14 */ { SCIF0, SCIF1, SCIF2, SCIF3 } },
125};
126
127static struct intc_mask_reg mask_registers[] __initdata = {
128	{ 0xfffe0808, 0, 16, /* PINTER */
129	  { 0, 0, 0, 0, 0, 0, 0, 0,
130	    PINT7, PINT6, PINT5, PINT4, PINT3, PINT2, PINT1, PINT0 } },
131};
132
133static DECLARE_INTC_DESC(intc_desc, "sh7206", vectors, groups,
134			 mask_registers, prio_registers, NULL);
135
136static struct plat_sci_port scif0_platform_data = {
137	.mapbase	= 0xfffe8000,
138	.flags		= UPF_BOOT_AUTOCONF,
139	.type		= PORT_SCIF,
140	.irqs		= { 240, 240, 240, 240 },
141};
142
143static struct platform_device scif0_device = {
144	.name		= "sh-sci",
145	.id		= 0,
146	.dev		= {
147		.platform_data	= &scif0_platform_data,
148	},
149};
150
151static struct plat_sci_port scif1_platform_data = {
152	.mapbase	= 0xfffe8800,
153	.flags		= UPF_BOOT_AUTOCONF,
154	.type		= PORT_SCIF,
155	.irqs		= { 244, 244, 244, 244 },
156};
157
158static struct platform_device scif1_device = {
159	.name		= "sh-sci",
160	.id		= 1,
161	.dev		= {
162		.platform_data	= &scif1_platform_data,
163	},
164};
165
166static struct plat_sci_port scif2_platform_data = {
167	.mapbase	= 0xfffe9000,
168	.flags		= UPF_BOOT_AUTOCONF,
169	.type		= PORT_SCIF,
170	.irqs		= { 248, 248, 248, 248 },
171};
172
173static struct platform_device scif2_device = {
174	.name		= "sh-sci",
175	.id		= 2,
176	.dev		= {
177		.platform_data	= &scif2_platform_data,
178	},
179};
180
181static struct plat_sci_port scif3_platform_data = {
182	.mapbase	= 0xfffe9800,
183	.flags		= UPF_BOOT_AUTOCONF,
184	.type		= PORT_SCIF,
185	.irqs		= { 252, 252, 252, 252 },
186};
187
188static struct platform_device scif3_device = {
189	.name		= "sh-sci",
190	.id		= 3,
191	.dev		= {
192		.platform_data	= &scif3_platform_data,
193	},
194};
195
196static struct sh_timer_config cmt0_platform_data = {
197	.channel_offset = 0x02,
198	.timer_bit = 0,
199	.clockevent_rating = 125,
200	.clocksource_rating = 0, /* disabled due to code generation issues */
201};
202
203static struct resource cmt0_resources[] = {
204	[0] = {
205		.start	= 0xfffec002,
206		.end	= 0xfffec007,
207		.flags	= IORESOURCE_MEM,
208	},
209	[1] = {
210		.start	= 140,
211		.flags	= IORESOURCE_IRQ,
212	},
213};
214
215static struct platform_device cmt0_device = {
216	.name		= "sh_cmt",
217	.id		= 0,
218	.dev = {
219		.platform_data	= &cmt0_platform_data,
220	},
221	.resource	= cmt0_resources,
222	.num_resources	= ARRAY_SIZE(cmt0_resources),
223};
224
225static struct sh_timer_config cmt1_platform_data = {
226	.channel_offset = 0x08,
227	.timer_bit = 1,
228	.clockevent_rating = 125,
229	.clocksource_rating = 0, /* disabled due to code generation issues */
230};
231
232static struct resource cmt1_resources[] = {
233	[0] = {
234		.start	= 0xfffec008,
235		.end	= 0xfffec00d,
236		.flags	= IORESOURCE_MEM,
237	},
238	[1] = {
239		.start	= 144,
240		.flags	= IORESOURCE_IRQ,
241	},
242};
243
244static struct platform_device cmt1_device = {
245	.name		= "sh_cmt",
246	.id		= 1,
247	.dev = {
248		.platform_data	= &cmt1_platform_data,
249	},
250	.resource	= cmt1_resources,
251	.num_resources	= ARRAY_SIZE(cmt1_resources),
252};
253
254static struct sh_timer_config mtu2_0_platform_data = {
255	.channel_offset = -0x80,
256	.timer_bit = 0,
257	.clockevent_rating = 200,
258};
259
260static struct resource mtu2_0_resources[] = {
261	[0] = {
262		.start	= 0xfffe4300,
263		.end	= 0xfffe4326,
264		.flags	= IORESOURCE_MEM,
265	},
266	[1] = {
267		.start	= 156,
268		.flags	= IORESOURCE_IRQ,
269	},
270};
271
272static struct platform_device mtu2_0_device = {
273	.name		= "sh_mtu2",
274	.id		= 0,
275	.dev = {
276		.platform_data	= &mtu2_0_platform_data,
277	},
278	.resource	= mtu2_0_resources,
279	.num_resources	= ARRAY_SIZE(mtu2_0_resources),
280};
281
282static struct sh_timer_config mtu2_1_platform_data = {
283	.channel_offset = -0x100,
284	.timer_bit = 1,
285	.clockevent_rating = 200,
286};
287
288static struct resource mtu2_1_resources[] = {
289	[0] = {
290		.start	= 0xfffe4380,
291		.end	= 0xfffe4390,
292		.flags	= IORESOURCE_MEM,
293	},
294	[1] = {
295		.start	= 164,
296		.flags	= IORESOURCE_IRQ,
297	},
298};
299
300static struct platform_device mtu2_1_device = {
301	.name		= "sh_mtu2",
302	.id		= 1,
303	.dev = {
304		.platform_data	= &mtu2_1_platform_data,
305	},
306	.resource	= mtu2_1_resources,
307	.num_resources	= ARRAY_SIZE(mtu2_1_resources),
308};
309
310static struct sh_timer_config mtu2_2_platform_data = {
311	.channel_offset = 0x80,
312	.timer_bit = 2,
313	.clockevent_rating = 200,
314};
315
316static struct resource mtu2_2_resources[] = {
317	[0] = {
318		.start	= 0xfffe4000,
319		.end	= 0xfffe400a,
320		.flags	= IORESOURCE_MEM,
321	},
322	[1] = {
323		.start	= 180,
324		.flags	= IORESOURCE_IRQ,
325	},
326};
327
328static struct platform_device mtu2_2_device = {
329	.name		= "sh_mtu2",
330	.id		= 2,
331	.dev = {
332		.platform_data	= &mtu2_2_platform_data,
333	},
334	.resource	= mtu2_2_resources,
335	.num_resources	= ARRAY_SIZE(mtu2_2_resources),
336};
337
338static struct platform_device *sh7206_devices[] __initdata = {
339	&scif0_device,
340	&scif1_device,
341	&scif2_device,
342	&scif3_device,
343	&cmt0_device,
344	&cmt1_device,
345	&mtu2_0_device,
346	&mtu2_1_device,
347	&mtu2_2_device,
348};
349
350static int __init sh7206_devices_setup(void)
351{
352	return platform_add_devices(sh7206_devices,
353				    ARRAY_SIZE(sh7206_devices));
354}
355arch_initcall(sh7206_devices_setup);
356
357void __init plat_irq_setup(void)
358{
359	register_intc_controller(&intc_desc);
360}
361
362static struct platform_device *sh7206_early_devices[] __initdata = {
363	&scif0_device,
364	&scif1_device,
365	&scif2_device,
366	&scif3_device,
367	&cmt0_device,
368	&cmt1_device,
369	&mtu2_0_device,
370	&mtu2_1_device,
371	&mtu2_2_device,
372};
373
374#define STBCR3 0xfffe0408
375#define STBCR4 0xfffe040c
376
377void __init plat_early_device_setup(void)
378{
379	/* enable CMT clock */
380	__raw_writeb(__raw_readb(STBCR4) & ~0x04, STBCR4);
381
382	/* enable MTU2 clock */
383	__raw_writeb(__raw_readb(STBCR3) & ~0x20, STBCR3);
384
385	early_platform_add_devices(sh7206_early_devices,
386				   ARRAY_SIZE(sh7206_early_devices));
387}
388