xref: /openbmc/linux/arch/sh/kernel/cpu/sh2/setup-sh7619.c (revision b6dcefde)
1 /*
2  * SH7619 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 
18 enum {
19 	UNUSED = 0,
20 
21 	/* interrupt sources */
22 	IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7,
23 	WDT, EDMAC, CMT0, CMT1,
24 	SCIF0, SCIF1, SCIF2,
25 	HIF_HIFI, HIF_HIFBI,
26 	DMAC0, DMAC1, DMAC2, DMAC3,
27 	SIOF,
28 };
29 
30 static struct intc_vect vectors[] __initdata = {
31 	INTC_IRQ(IRQ0, 64), INTC_IRQ(IRQ1, 65),
32 	INTC_IRQ(IRQ2, 66), INTC_IRQ(IRQ3, 67),
33 	INTC_IRQ(IRQ4, 80), INTC_IRQ(IRQ5, 81),
34 	INTC_IRQ(IRQ6, 82), INTC_IRQ(IRQ7, 83),
35 	INTC_IRQ(WDT, 84), INTC_IRQ(EDMAC, 85),
36 	INTC_IRQ(CMT0, 86), INTC_IRQ(CMT1, 87),
37 	INTC_IRQ(SCIF0, 88), INTC_IRQ(SCIF0, 89),
38 	INTC_IRQ(SCIF0, 90), INTC_IRQ(SCIF0, 91),
39 	INTC_IRQ(SCIF1, 92), INTC_IRQ(SCIF1, 93),
40 	INTC_IRQ(SCIF1, 94), INTC_IRQ(SCIF1, 95),
41 	INTC_IRQ(SCIF2, 96), INTC_IRQ(SCIF2, 97),
42 	INTC_IRQ(SCIF2, 98), INTC_IRQ(SCIF2, 99),
43 	INTC_IRQ(HIF_HIFI, 100), INTC_IRQ(HIF_HIFBI, 101),
44 	INTC_IRQ(DMAC0, 104), INTC_IRQ(DMAC1, 105),
45 	INTC_IRQ(DMAC2, 106), INTC_IRQ(DMAC3, 107),
46 	INTC_IRQ(SIOF, 108),
47 };
48 
49 static struct intc_prio_reg prio_registers[] __initdata = {
50 	{ 0xf8140006, 0, 16, 4, /* IPRA */ { IRQ0, IRQ1, IRQ2, IRQ3 } },
51 	{ 0xf8140008, 0, 16, 4, /* IPRB */ { IRQ4, IRQ5, IRQ6, IRQ7 } },
52 	{ 0xf8080000, 0, 16, 4, /* IPRC */ { WDT, EDMAC, CMT0, CMT1 } },
53 	{ 0xf8080002, 0, 16, 4, /* IPRD */ { SCIF0, SCIF1, SCIF2 } },
54 	{ 0xf8080004, 0, 16, 4, /* IPRE */ { HIF_HIFI, HIF_HIFBI } },
55 	{ 0xf8080006, 0, 16, 4, /* IPRF */ { DMAC0, DMAC1, DMAC2, DMAC3 } },
56 	{ 0xf8080008, 0, 16, 4, /* IPRG */ { SIOF } },
57 };
58 
59 static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
60 			 NULL, prio_registers, NULL);
61 
62 static struct plat_sci_port scif0_platform_data = {
63 	.mapbase	= 0xf8400000,
64 	.flags		= UPF_BOOT_AUTOCONF,
65 	.type		= PORT_SCIF,
66 	.irqs		= { 88, 88, 88, 88 },
67 };
68 
69 static struct platform_device scif0_device = {
70 	.name		= "sh-sci",
71 	.id		= 0,
72 	.dev		= {
73 		.platform_data	= &scif0_platform_data,
74 	},
75 };
76 
77 static struct plat_sci_port scif1_platform_data = {
78 	.mapbase	= 0xf8410000,
79 	.flags		= UPF_BOOT_AUTOCONF,
80 	.type		= PORT_SCIF,
81 	.irqs		= { 92, 92, 92, 92 },
82 };
83 
84 static struct platform_device scif1_device = {
85 	.name		= "sh-sci",
86 	.id		= 1,
87 	.dev		= {
88 		.platform_data	= &scif1_platform_data,
89 	},
90 };
91 
92 static struct plat_sci_port scif2_platform_data = {
93 	.mapbase	= 0xf8420000,
94 	.flags		= UPF_BOOT_AUTOCONF,
95 	.type		= PORT_SCIF,
96 	.irqs		= { 96, 96, 96, 96 },
97 };
98 
99 static struct platform_device scif2_device = {
100 	.name		= "sh-sci",
101 	.id		= 2,
102 	.dev		= {
103 		.platform_data	= &scif2_platform_data,
104 	},
105 };
106 
107 static struct resource eth_resources[] = {
108 	[0] = {
109 		.start = 0xfb000000,
110 		.end =   0xfb0001c8,
111 		.flags = IORESOURCE_MEM,
112 	},
113 	[1] = {
114 		.start = 85,
115 		.end = 85,
116 		.flags = IORESOURCE_IRQ,
117 	},
118 };
119 
120 static struct platform_device eth_device = {
121 	.name = "sh-eth",
122 	.id	= -1,
123 	.dev = {
124 		.platform_data = (void *)1,
125 	},
126 	.num_resources = ARRAY_SIZE(eth_resources),
127 	.resource = eth_resources,
128 };
129 
130 static struct sh_timer_config cmt0_platform_data = {
131 	.name = "CMT0",
132 	.channel_offset = 0x02,
133 	.timer_bit = 0,
134 	.clk = "peripheral_clk",
135 	.clockevent_rating = 125,
136 	.clocksource_rating = 0, /* disabled due to code generation issues */
137 };
138 
139 static struct resource cmt0_resources[] = {
140 	[0] = {
141 		.name	= "CMT0",
142 		.start	= 0xf84a0072,
143 		.end	= 0xf84a0077,
144 		.flags	= IORESOURCE_MEM,
145 	},
146 	[1] = {
147 		.start	= 86,
148 		.flags	= IORESOURCE_IRQ,
149 	},
150 };
151 
152 static struct platform_device cmt0_device = {
153 	.name		= "sh_cmt",
154 	.id		= 0,
155 	.dev = {
156 		.platform_data	= &cmt0_platform_data,
157 	},
158 	.resource	= cmt0_resources,
159 	.num_resources	= ARRAY_SIZE(cmt0_resources),
160 };
161 
162 static struct sh_timer_config cmt1_platform_data = {
163 	.name = "CMT1",
164 	.channel_offset = 0x08,
165 	.timer_bit = 1,
166 	.clk = "peripheral_clk",
167 	.clockevent_rating = 125,
168 	.clocksource_rating = 0, /* disabled due to code generation issues */
169 };
170 
171 static struct resource cmt1_resources[] = {
172 	[0] = {
173 		.name	= "CMT1",
174 		.start	= 0xf84a0078,
175 		.end	= 0xf84a007d,
176 		.flags	= IORESOURCE_MEM,
177 	},
178 	[1] = {
179 		.start	= 87,
180 		.flags	= IORESOURCE_IRQ,
181 	},
182 };
183 
184 static struct platform_device cmt1_device = {
185 	.name		= "sh_cmt",
186 	.id		= 1,
187 	.dev = {
188 		.platform_data	= &cmt1_platform_data,
189 	},
190 	.resource	= cmt1_resources,
191 	.num_resources	= ARRAY_SIZE(cmt1_resources),
192 };
193 
194 static struct platform_device *sh7619_devices[] __initdata = {
195 	&scif0_device,
196 	&scif1_device,
197 	&scif2_device,
198 	&eth_device,
199 	&cmt0_device,
200 	&cmt1_device,
201 };
202 
203 static int __init sh7619_devices_setup(void)
204 {
205 	return platform_add_devices(sh7619_devices,
206 				    ARRAY_SIZE(sh7619_devices));
207 }
208 arch_initcall(sh7619_devices_setup);
209 
210 void __init plat_irq_setup(void)
211 {
212 	register_intc_controller(&intc_desc);
213 }
214 
215 static struct platform_device *sh7619_early_devices[] __initdata = {
216 	&scif0_device,
217 	&scif1_device,
218 	&scif2_device,
219 	&cmt0_device,
220 	&cmt1_device,
221 };
222 
223 #define STBCR3 0xf80a0000
224 
225 void __init plat_early_device_setup(void)
226 {
227 	/* enable CMT clock */
228 	__raw_writeb(__raw_readb(STBCR3) & ~0x10, STBCR3);
229 
230 	early_platform_add_devices(sh7619_early_devices,
231 				   ARRAY_SIZE(sh7619_early_devices));
232 }
233