xref: /openbmc/linux/arch/sh/kernel/cpu/sh3/setup-sh7710.c (revision 96de0e252cedffad61b3cb5e05662c591898e69a)
1 /*
2  * SH3 Setup code for SH7710, SH7712
3  *
4  *  Copyright (C) 2006, 2007  Paul Mundt
5  *  Copyright (C) 2007  Nobuhiro Iwamatsu
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/irq.h>
14 #include <linux/serial.h>
15 #include <asm/sci.h>
16 #include <asm/rtc.h>
17 
18 enum {
19 	UNUSED = 0,
20 
21 	/* interrupt sources */
22 	IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5,
23 	DMAC_DEI0, DMAC_DEI1, DMAC_DEI2, DMAC_DEI3,
24 	SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI,
25 	SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI,
26 	DMAC_DEI4, DMAC_DEI5,
27 	IPSEC,
28 	EDMAC0, EDMAC1, EDMAC2,
29 	SIOF0_ERI, SIOF0_TXI, SIOF0_RXI, SIOF0_CCI,
30 	SIOF1_ERI, SIOF1_TXI, SIOF1_RXI, SIOF1_CCI,
31 	TMU0, TMU1, TMU2,
32 	RTC_ATI, RTC_PRI, RTC_CUI,
33 	WDT,
34 	REF,
35 
36 	/* interrupt groups */
37 	RTC, DMAC1, SCIF0, SCIF1, DMAC2, SIOF0, SIOF1,
38 };
39 
40 static struct intc_vect vectors[] __initdata = {
41 	INTC_VECT(IRQ4, 0x680), INTC_VECT(IRQ5, 0x6a0),
42 	INTC_VECT(DMAC_DEI0, 0x800), INTC_VECT(DMAC_DEI1, 0x820),
43 	INTC_VECT(DMAC_DEI2, 0x840), INTC_VECT(DMAC_DEI3, 0x860),
44 	INTC_VECT(SCIF0_ERI, 0x880), INTC_VECT(SCIF0_RXI, 0x8a0),
45 	INTC_VECT(SCIF0_BRI, 0x8c0), INTC_VECT(SCIF0_TXI, 0x8e0),
46 	INTC_VECT(SCIF1_ERI, 0x900), INTC_VECT(SCIF1_RXI, 0x920),
47 	INTC_VECT(SCIF1_BRI, 0x940), INTC_VECT(SCIF1_TXI, 0x960),
48 	INTC_VECT(DMAC_DEI4, 0xb80), INTC_VECT(DMAC_DEI5, 0xba0),
49 #ifdef CONFIG_CPU_SUBTYPE_SH7710
50 	INTC_VECT(IPSEC, 0xbe0),
51 #endif
52 	INTC_VECT(EDMAC0, 0xc00), INTC_VECT(EDMAC1, 0xc20),
53 	INTC_VECT(EDMAC2, 0xc40),
54 	INTC_VECT(SIOF0_ERI, 0xe00), INTC_VECT(SIOF0_TXI, 0xe20),
55 	INTC_VECT(SIOF0_RXI, 0xe40), INTC_VECT(SIOF0_CCI, 0xe60),
56 	INTC_VECT(SIOF1_ERI, 0xe80), INTC_VECT(SIOF1_TXI, 0xea0),
57 	INTC_VECT(SIOF1_RXI, 0xec0), INTC_VECT(SIOF1_CCI, 0xee0),
58 	INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
59 	INTC_VECT(TMU2, 0x440),
60 	INTC_VECT(RTC_ATI, 0x480), INTC_VECT(RTC_PRI, 0x4a0),
61 	INTC_VECT(RTC_CUI, 0x4c0),
62 	INTC_VECT(WDT, 0x560),
63 	INTC_VECT(REF, 0x580),
64 };
65 
66 static struct intc_group groups[] __initdata = {
67 	INTC_GROUP(RTC, RTC_ATI, RTC_PRI, RTC_CUI),
68 	INTC_GROUP(DMAC1, DMAC_DEI0, DMAC_DEI1, DMAC_DEI2, DMAC_DEI3),
69 	INTC_GROUP(SCIF0, SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI),
70 	INTC_GROUP(SCIF1, SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI),
71 	INTC_GROUP(DMAC2, DMAC_DEI4, DMAC_DEI5),
72 	INTC_GROUP(SIOF0, SIOF0_ERI, SIOF0_TXI, SIOF0_RXI, SIOF0_CCI),
73 	INTC_GROUP(SIOF1, SIOF1_ERI, SIOF1_TXI, SIOF1_RXI, SIOF1_CCI),
74 };
75 
76 static struct intc_prio priorities[] __initdata = {
77 	INTC_PRIO(DMAC1, 7),
78 	INTC_PRIO(DMAC2, 7),
79 	INTC_PRIO(SCIF0, 3),
80 	INTC_PRIO(SCIF1, 3),
81 	INTC_PRIO(SIOF0, 3),
82 	INTC_PRIO(SIOF1, 3),
83 	INTC_PRIO(EDMAC0, 5),
84 	INTC_PRIO(EDMAC1, 5),
85 	INTC_PRIO(EDMAC2, 5),
86 };
87 
88 static struct intc_prio_reg prio_registers[] __initdata = {
89 	{ 0xfffffee2, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
90 	{ 0xfffffee4, 0, 16, 4, /* IPRB */ { WDT, REF, 0, 0 } },
91 	{ 0xa4000016, 0, 16, 4, /* IPRC */ { IRQ3, IRQ2, IRQ1, IRQ0 } },
92 	{ 0xa4000018, 0, 16, 4, /* IPRD */ { 0, 0, IRQ5, IRQ4 } },
93 	{ 0xa400001a, 0, 16, 4, /* IPRE */ { DMAC1, SCIF0, SCIF1 } },
94 	{ 0xa4080000, 0, 16, 4, /* IPRF */ { 0, DMAC2 } },
95 #ifdef CONFIG_CPU_SUBTYPE_SH7710
96 	{ 0xa4080000, 0, 16, 4, /* IPRF */ { IPSEC } },
97 #endif
98 	{ 0xa4080002, 0, 16, 4, /* IPRG */ { EDMAC0, EDMAC1, EDMAC2 } },
99 	{ 0xa4080004, 0, 16, 4, /* IPRH */ { 0, 0, 0, SIOF0 } },
100 	{ 0xa4080006, 0, 16, 4, /* IPRI */ { 0, 0, SIOF1 } },
101 };
102 
103 static DECLARE_INTC_DESC(intc_desc, "sh7710", vectors, groups,
104 			 priorities, NULL, prio_registers, NULL);
105 
106 static struct intc_vect vectors_irq[] __initdata = {
107 	INTC_VECT(IRQ0, 0x600), INTC_VECT(IRQ1, 0x620),
108 	INTC_VECT(IRQ2, 0x640), INTC_VECT(IRQ3, 0x660),
109 };
110 
111 static DECLARE_INTC_DESC(intc_desc_irq, "sh7710-irq", vectors_irq, NULL,
112 			 priorities, NULL, prio_registers, NULL);
113 
114 static struct resource rtc_resources[] = {
115 	[0] =	{
116 		.start	= 0xa413fec0,
117 		.end	= 0xa413fec0 + 0x1e,
118 		.flags  = IORESOURCE_IO,
119 	},
120 	[1] =	{
121 		.start  = 20,
122 		.flags	= IORESOURCE_IRQ,
123 	},
124 	[2] =	{
125 		.start	= 21,
126 		.flags	= IORESOURCE_IRQ,
127 	},
128 	[3] =	{
129 		.start	= 22,
130 		.flags  = IORESOURCE_IRQ,
131 	},
132 };
133 
134 static struct sh_rtc_platform_info rtc_info = {
135 	.capabilities	= RTC_CAP_4_DIGIT_YEAR,
136 };
137 
138 static struct platform_device rtc_device = {
139 	.name		= "sh-rtc",
140 	.id		= -1,
141 	.num_resources	= ARRAY_SIZE(rtc_resources),
142 	.resource	= rtc_resources,
143 	.dev		= {
144 		.platform_data = &rtc_info,
145 	},
146 };
147 
148 static struct plat_sci_port sci_platform_data[] = {
149 	{
150 		.mapbase	= 0xa4400000,
151 		.flags		= UPF_BOOT_AUTOCONF,
152 		.type		= PORT_SCIF,
153 		.irqs		= { 52, 53, 55, 54 },
154 	}, {
155 		.mapbase	= 0xa4410000,
156 		.flags		= UPF_BOOT_AUTOCONF,
157 		.type		= PORT_SCIF,
158 		.irqs           = { 56, 57, 59, 58 },
159 	}, {
160 
161 		.flags = 0,
162 	}
163 };
164 
165 static struct platform_device sci_device = {
166 	.name		= "sh-sci",
167 	.id		= -1,
168 	.dev		= {
169 		.platform_data	= sci_platform_data,
170 	},
171 };
172 
173 static struct platform_device *sh7710_devices[] __initdata = {
174 	&sci_device,
175 	&rtc_device,
176 };
177 
178 static int __init sh7710_devices_setup(void)
179 {
180 	return platform_add_devices(sh7710_devices,
181 				    ARRAY_SIZE(sh7710_devices));
182 }
183 __initcall(sh7710_devices_setup);
184 
185 void __init plat_irq_setup_pins(int mode)
186 {
187 	if (mode == IRQ_MODE_IRQ) {
188 		register_intc_controller(&intc_desc_irq);
189 		return;
190 	}
191 	BUG();
192 }
193 
194 void __init plat_irq_setup(void)
195 {
196 	register_intc_controller(&intc_desc);
197 }
198