aboutsummaryrefslogtreecommitdiff
path: root/arch/sh/kernel/cpu/sh4/setup-sh7750.c
blob: ae3603aca615017e2296cf094a0a822ec291006a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
/*
 * SH7750/SH7751 Setup
 *
 *  Copyright (C) 2006  Paul Mundt
 *  Copyright (C) 2006  Jamie Lenehan
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 */
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/serial.h>
#include <linux/io.h>
#include <asm/sci.h>

static struct resource rtc_resources[] = {
	[0] = {
		.start	= 0xffc80000,
		.end	= 0xffc80000 + 0x58 - 1,
		.flags	= IORESOURCE_IO,
	},
	[1] = {
		/* Period IRQ */
		.start	= 21,
		.flags	= IORESOURCE_IRQ,
	},
	[2] = {
		/* Carry IRQ */
		.start	= 22,
		.flags	= IORESOURCE_IRQ,
	},
	[3] = {
		/* Alarm IRQ */
		.start	= 20,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device rtc_device = {
	.name		= "sh-rtc",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(rtc_resources),
	.resource	= rtc_resources,
};

static struct plat_sci_port sci_platform_data[] = {
	{
#ifndef CONFIG_SH_RTS7751R2D
		.mapbase	= 0xffe00000,
		.flags		= UPF_BOOT_AUTOCONF,
		.type		= PORT_SCI,
		.irqs		= { 23, 24, 25, 0 },
	}, {
#endif
		.mapbase	= 0xffe80000,
		.flags		= UPF_BOOT_AUTOCONF,
		.type		= PORT_SCIF,
		.irqs		= { 40, 41, 43, 42 },
	}, {
		.flags = 0,
	}
};

static struct platform_device sci_device = {
	.name		= "sh-sci",
	.id		= -1,
	.dev		= {
		.platform_data	= sci_platform_data,
	},
};

static struct platform_device *sh7750_devices[] __initdata = {
	&rtc_device,
	&sci_device,
};

static int __init sh7750_devices_setup(void)
{
	return platform_add_devices(sh7750_devices,
				    ARRAY_SIZE(sh7750_devices));
}
__initcall(sh7750_devices_setup);

enum {
	UNUSED = 0,

	/* interrupt sources */
	IRL0, IRL1, IRL2, IRL3, /* only IRLM mode supported */
	HUDI, GPIOI,
	DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2, DMAC_DMTE3,
	DMAC_DMTE4, DMAC_DMTE5, DMAC_DMTE6, DMAC_DMTE7,
	DMAC_DMAE,
	PCIC0_PCISERR, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
	PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3,
	TMU3, TMU4, TMU0, TMU1, TMU2_TUNI, TMU2_TICPI,
	RTC_ATI, RTC_PRI, RTC_CUI,
	SCI1_ERI, SCI1_RXI, SCI1_TXI, SCI1_TEI,
	SCIF_ERI, SCIF_RXI, SCIF_BRI, SCIF_TXI,
	WDT,
	REF_RCMI, REF_ROVI,

	/* interrupt groups */
	DMAC, PCIC1, TMU2, RTC, SCI1, SCIF, REF,
};

static struct intc_vect vectors[] __initdata = {
	INTC_VECT(HUDI, 0x600), INTC_VECT(GPIOI, 0x620),
	INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
	INTC_VECT(TMU2_TUNI, 0x440), INTC_VECT(TMU2_TICPI, 0x460),
	INTC_VECT(RTC_ATI, 0x480), INTC_VECT(RTC_PRI, 0x4a0),
	INTC_VECT(RTC_CUI, 0x4c0),
	INTC_VECT(SCI1_ERI, 0x4e0), INTC_VECT(SCI1_RXI, 0x500),
	INTC_VECT(SCI1_TXI, 0x520), INTC_VECT(SCI1_TEI, 0x540),
	INTC_VECT(SCIF_ERI, 0x700), INTC_VECT(SCIF_RXI, 0x720),
	INTC_VECT(SCIF_BRI, 0x740), INTC_VECT(SCIF_TXI, 0x760),
	INTC_VECT(WDT, 0x560),
	INTC_VECT(REF_RCMI, 0x580), INTC_VECT(REF_ROVI, 0x5a0),
};

static struct intc_group groups[] __initdata = {
	INTC_GROUP(TMU2, TMU2_TUNI, TMU2_TICPI),
	INTC_GROUP(RTC, RTC_ATI, RTC_PRI, RTC_CUI),
	INTC_GROUP(SCI1, SCI1_ERI, SCI1_RXI, SCI1_TXI, SCI1_TEI),
	INTC_GROUP(SCIF, SCIF_ERI, SCIF_RXI, SCIF_BRI, SCIF_TXI),
	INTC_GROUP(REF, REF_RCMI, REF_ROVI),
};

static struct intc_prio_reg prio_registers[] __initdata = {
	{ 0xffd00004, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
	{ 0xffd00008, 0, 16, 4, /* IPRB */ { WDT, REF, SCI1, 0 } },
	{ 0xffd0000c, 0, 16, 4, /* IPRC */ { GPIOI, DMAC, SCIF, HUDI } },
	{ 0xffd00010, 0, 16, 4, /* IPRD */ { IRL0, IRL1, IRL2, IRL3 } },
	{ 0xfe080000, 0, 32, 4, /* INTPRI00 */ { 0, 0, 0, 0,
						 TMU4, TMU3,
						 PCIC1, PCIC0_PCISERR } },
};

static DECLARE_INTC_DESC(intc_desc, "sh7750", vectors, groups,
			 NULL, prio_registers, NULL);

/* SH7750, SH7750S, SH7751 and SH7091 all have 4-channel DMA controllers */
#if defined(CONFIG_CPU_SUBTYPE_SH7750) || \
	defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
	defined(CONFIG_CPU_SUBTYPE_SH7751) || \
	defined(CONFIG_CPU_SUBTYPE_SH7091)
static struct intc_vect vectors_dma4[] __initdata = {
	INTC_VECT(DMAC_DMTE0, 0x640), INTC_VECT(DMAC_DMTE1, 0x660),
	INTC_VECT(DMAC_DMTE2, 0x680), INTC_VECT(DMAC_DMTE3, 0x6a0),
	INTC_VECT(DMAC_DMAE, 0x6c0),
};

static struct intc_group groups_dma4[] __initdata = {
	INTC_GROUP(DMAC, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2,
		   DMAC_DMTE3, DMAC_DMAE),
};

static DECLARE_INTC_DESC(intc_desc_dma4, "sh7750_dma4",
			 vectors_dma4, groups_dma4,
			 NULL, prio_registers, NULL);
#endif

/* SH7750R and SH7751R both have 8-channel DMA controllers */
#if defined(CONFIG_CPU_SUBTYPE_SH7750R) || defined(CONFIG_CPU_SUBTYPE_SH7751R)
static struct intc_vect vectors_dma8[] __initdata = {
	INTC_VECT(DMAC_DMTE0, 0x640), INTC_VECT(DMAC_DMTE1, 0x660),
	INTC_VECT(DMAC_DMTE2, 0x680), INTC_VECT(DMAC_DMTE3, 0x6a0),
	INTC_VECT(DMAC_DMTE4, 0x780), INTC_VECT(DMAC_DMTE5, 0x7a0),
	INTC_VECT(DMAC_DMTE6, 0x7c0), INTC_VECT(DMAC_DMTE7, 0x7e0),
	INTC_VECT(DMAC_DMAE, 0x6c0),
};

static struct intc_group groups_dma8[] __initdata = {
	INTC_GROUP(DMAC, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2,
		   DMAC_DMTE3, DMAC_DMTE4, DMAC_DMTE5,
		   DMAC_DMTE6, DMAC_DMTE7, DMAC_DMAE),
};

static DECLARE_INTC_DESC(intc_desc_dma8, "sh7750_dma8",
			 vectors_dma8, groups_dma8,
			 NULL, prio_registers, NULL);
#endif

/* SH7750R, SH7751 and SH7751R all have two extra timer channels */
#if defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
	defined(CONFIG_CPU_SUBTYPE_SH7751) || \
	defined(CONFIG_CPU_SUBTYPE_SH7751R)
static struct intc_vect vectors_tmu34[] __initdata = {
	INTC_VECT(TMU3, 0xb00), INTC_VECT(TMU4, 0xb80),
};

static struct intc_mask_reg mask_registers[] __initdata = {
	{ 0xfe080040, 0xfe080060, 32, /* INTMSK00 / INTMSKCLR00 */
	  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	    0, 0, 0, 0, 0, 0, TMU4, TMU3,
	    PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
	    PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2,
	    PCIC1_PCIDMA3, PCIC0_PCISERR } },
};

static DECLARE_INTC_DESC(intc_desc_tmu34, "sh7750_tmu34",
			 vectors_tmu34, NULL,
			 mask_registers, prio_registers, NULL);
#endif

/* SH7750S, SH7750R, SH7751 and SH7751R all have IRLM priority registers */
static struct intc_vect vectors_irlm[] __initdata = {
	INTC_VECT(IRL0, 0x240), INTC_VECT(IRL1, 0x2a0),
	INTC_VECT(IRL2, 0x300), INTC_VECT(IRL3, 0x360),
};

static DECLARE_INTC_DESC(intc_desc_irlm, "sh7750_irlm", vectors_irlm, NULL,
			 NULL, prio_registers, NULL);

/* SH7751 and SH7751R both have PCI */
#if defined(CONFIG_CPU_SUBTYPE_SH7751) || defined(CONFIG_CPU_SUBTYPE_SH7751R)
static struct intc_vect vectors_pci[] __initdata = {
	INTC_VECT(PCIC0_PCISERR, 0xa00), INTC_VECT(PCIC1_PCIERR, 0xae0),
	INTC_VECT(PCIC1_PCIPWDWN, 0xac0), INTC_VECT(PCIC1_PCIPWON, 0xaa0),
	INTC_VECT(PCIC1_PCIDMA0, 0xa80), INTC_VECT(PCIC1_PCIDMA1, 0xa60),
	INTC_VECT(PCIC1_PCIDMA2, 0xa40), INTC_VECT(PCIC1_PCIDMA3, 0xa20),
};

static struct intc_group groups_pci[] __initdata = {
	INTC_GROUP(PCIC1, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
		   PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3),
};

static DECLARE_INTC_DESC(intc_desc_pci, "sh7750_pci", vectors_pci, groups_pci,
			 mask_registers, prio_registers, NULL);
#endif

#if defined(CONFIG_CPU_SUBTYPE_SH7750) || \
	defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
	defined(CONFIG_CPU_SUBTYPE_SH7091)
void __init plat_irq_setup(void)
{
	/*
	 * same vectors for SH7750, SH7750S and SH7091 except for IRLM,
	 * see below..
	 */
	register_intc_controller(&intc_desc);
	register_intc_controller(&intc_desc_dma4);
}
#endif

#if defined(CONFIG_CPU_SUBTYPE_SH7750R)
void __init plat_irq_setup(void)
{
	register_intc_controller(&intc_desc);
	register_intc_controller(&intc_desc_dma8);
	register_intc_controller(&intc_desc_tmu34);
}
#endif

#if defined(CONFIG_CPU_SUBTYPE_SH7751)
void __init plat_irq_setup(void)
{
	register_intc_controller(&intc_desc);
	register_intc_controller(&intc_desc_dma4);
	register_intc_controller(&intc_desc_tmu34);
	register_intc_controller(&intc_desc_pci);
}
#endif

#if defined(CONFIG_CPU_SUBTYPE_SH7751R)
void __init plat_irq_setup(void)
{
	register_intc_controller(&intc_desc);
	register_intc_controller(&intc_desc_dma8);
	register_intc_controller(&intc_desc_tmu34);
	register_intc_controller(&intc_desc_pci);
}
#endif

#define INTC_ICR	0xffd00000UL
#define INTC_ICR_IRLM   (1<<7)

void __init plat_irq_setup_pins(int mode)
{
#if defined(CONFIG_CPU_SUBTYPE_SH7750) || defined(CONFIG_CPU_SUBTYPE_SH7091)
	BUG(); /* impossible to mask interrupts on SH7750 and SH7091 */
	return;
#endif

	switch (mode) {
	case IRQ_MODE_IRQ: /* individual interrupt mode for IRL3-0 */
		ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR);
		register_intc_controller(&intc_desc_irlm);
		break;
	default:
		BUG();
	}
}