xref: /openbmc/linux/arch/sh/kernel/cpu/sh2/setup-sh7619.c (revision 31b90347)
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_eth.h>
16 #include <linux/sh_timer.h>
17 #include <linux/io.h>
18 
19 enum {
20 	UNUSED = 0,
21 
22 	/* interrupt sources */
23 	IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7,
24 	WDT, EDMAC, CMT0, CMT1,
25 	SCIF0, SCIF1, SCIF2,
26 	HIF_HIFI, HIF_HIFBI,
27 	DMAC0, DMAC1, DMAC2, DMAC3,
28 	SIOF,
29 };
30 
31 static struct intc_vect vectors[] __initdata = {
32 	INTC_IRQ(IRQ0, 64), INTC_IRQ(IRQ1, 65),
33 	INTC_IRQ(IRQ2, 66), INTC_IRQ(IRQ3, 67),
34 	INTC_IRQ(IRQ4, 80), INTC_IRQ(IRQ5, 81),
35 	INTC_IRQ(IRQ6, 82), INTC_IRQ(IRQ7, 83),
36 	INTC_IRQ(WDT, 84), INTC_IRQ(EDMAC, 85),
37 	INTC_IRQ(CMT0, 86), INTC_IRQ(CMT1, 87),
38 	INTC_IRQ(SCIF0, 88), INTC_IRQ(SCIF0, 89),
39 	INTC_IRQ(SCIF0, 90), INTC_IRQ(SCIF0, 91),
40 	INTC_IRQ(SCIF1, 92), INTC_IRQ(SCIF1, 93),
41 	INTC_IRQ(SCIF1, 94), INTC_IRQ(SCIF1, 95),
42 	INTC_IRQ(SCIF2, 96), INTC_IRQ(SCIF2, 97),
43 	INTC_IRQ(SCIF2, 98), INTC_IRQ(SCIF2, 99),
44 	INTC_IRQ(HIF_HIFI, 100), INTC_IRQ(HIF_HIFBI, 101),
45 	INTC_IRQ(DMAC0, 104), INTC_IRQ(DMAC1, 105),
46 	INTC_IRQ(DMAC2, 106), INTC_IRQ(DMAC3, 107),
47 	INTC_IRQ(SIOF, 108),
48 };
49 
50 static struct intc_prio_reg prio_registers[] __initdata = {
51 	{ 0xf8140006, 0, 16, 4, /* IPRA */ { IRQ0, IRQ1, IRQ2, IRQ3 } },
52 	{ 0xf8140008, 0, 16, 4, /* IPRB */ { IRQ4, IRQ5, IRQ6, IRQ7 } },
53 	{ 0xf8080000, 0, 16, 4, /* IPRC */ { WDT, EDMAC, CMT0, CMT1 } },
54 	{ 0xf8080002, 0, 16, 4, /* IPRD */ { SCIF0, SCIF1, SCIF2 } },
55 	{ 0xf8080004, 0, 16, 4, /* IPRE */ { HIF_HIFI, HIF_HIFBI } },
56 	{ 0xf8080006, 0, 16, 4, /* IPRF */ { DMAC0, DMAC1, DMAC2, DMAC3 } },
57 	{ 0xf8080008, 0, 16, 4, /* IPRG */ { SIOF } },
58 };
59 
60 static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
61 			 NULL, prio_registers, NULL);
62 
63 static struct plat_sci_port scif0_platform_data = {
64 	.mapbase	= 0xf8400000,
65 	.flags		= UPF_BOOT_AUTOCONF,
66 	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
67 	.scbrr_algo_id	= SCBRR_ALGO_2,
68 	.type		= PORT_SCIF,
69 	.irqs		= SCIx_IRQ_MUXED(88),
70 };
71 
72 static struct platform_device scif0_device = {
73 	.name		= "sh-sci",
74 	.id		= 0,
75 	.dev		= {
76 		.platform_data	= &scif0_platform_data,
77 	},
78 };
79 
80 static struct plat_sci_port scif1_platform_data = {
81 	.mapbase	= 0xf8410000,
82 	.flags		= UPF_BOOT_AUTOCONF,
83 	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
84 	.scbrr_algo_id	= SCBRR_ALGO_2,
85 	.type		= PORT_SCIF,
86 	.irqs		= SCIx_IRQ_MUXED(92),
87 };
88 
89 static struct platform_device scif1_device = {
90 	.name		= "sh-sci",
91 	.id		= 1,
92 	.dev		= {
93 		.platform_data	= &scif1_platform_data,
94 	},
95 };
96 
97 static struct plat_sci_port scif2_platform_data = {
98 	.mapbase	= 0xf8420000,
99 	.flags		= UPF_BOOT_AUTOCONF,
100 	.scscr		= SCSCR_RE | SCSCR_TE | SCSCR_REIE,
101 	.scbrr_algo_id	= SCBRR_ALGO_2,
102 	.type		= PORT_SCIF,
103 	.irqs		= SCIx_IRQ_MUXED(96),
104 };
105 
106 static struct platform_device scif2_device = {
107 	.name		= "sh-sci",
108 	.id		= 2,
109 	.dev		= {
110 		.platform_data	= &scif2_platform_data,
111 	},
112 };
113 
114 static struct sh_eth_plat_data eth_platform_data = {
115 	.phy		= 1,
116 	.edmac_endian	= EDMAC_LITTLE_ENDIAN,
117 	.phy_interface	= PHY_INTERFACE_MODE_MII,
118 };
119 
120 static struct resource eth_resources[] = {
121 	[0] = {
122 		.start = 0xfb000000,
123 		.end = 0xfb0001c7,
124 		.flags = IORESOURCE_MEM,
125 	},
126 	[1] = {
127 		.start = 85,
128 		.end = 85,
129 		.flags = IORESOURCE_IRQ,
130 	},
131 };
132 
133 static struct platform_device eth_device = {
134 	.name = "sh7619-ether",
135 	.id = -1,
136 	.dev = {
137 		.platform_data = &eth_platform_data,
138 	},
139 	.num_resources = ARRAY_SIZE(eth_resources),
140 	.resource = eth_resources,
141 };
142 
143 static struct sh_timer_config cmt0_platform_data = {
144 	.channel_offset = 0x02,
145 	.timer_bit = 0,
146 	.clockevent_rating = 125,
147 	.clocksource_rating = 0, /* disabled due to code generation issues */
148 };
149 
150 static struct resource cmt0_resources[] = {
151 	[0] = {
152 		.start	= 0xf84a0072,
153 		.end	= 0xf84a0077,
154 		.flags	= IORESOURCE_MEM,
155 	},
156 	[1] = {
157 		.start	= 86,
158 		.flags	= IORESOURCE_IRQ,
159 	},
160 };
161 
162 static struct platform_device cmt0_device = {
163 	.name		= "sh_cmt",
164 	.id		= 0,
165 	.dev = {
166 		.platform_data	= &cmt0_platform_data,
167 	},
168 	.resource	= cmt0_resources,
169 	.num_resources	= ARRAY_SIZE(cmt0_resources),
170 };
171 
172 static struct sh_timer_config cmt1_platform_data = {
173 	.channel_offset = 0x08,
174 	.timer_bit = 1,
175 	.clockevent_rating = 125,
176 	.clocksource_rating = 0, /* disabled due to code generation issues */
177 };
178 
179 static struct resource cmt1_resources[] = {
180 	[0] = {
181 		.start	= 0xf84a0078,
182 		.end	= 0xf84a007d,
183 		.flags	= IORESOURCE_MEM,
184 	},
185 	[1] = {
186 		.start	= 87,
187 		.flags	= IORESOURCE_IRQ,
188 	},
189 };
190 
191 static struct platform_device cmt1_device = {
192 	.name		= "sh_cmt",
193 	.id		= 1,
194 	.dev = {
195 		.platform_data	= &cmt1_platform_data,
196 	},
197 	.resource	= cmt1_resources,
198 	.num_resources	= ARRAY_SIZE(cmt1_resources),
199 };
200 
201 static struct platform_device *sh7619_devices[] __initdata = {
202 	&scif0_device,
203 	&scif1_device,
204 	&scif2_device,
205 	&eth_device,
206 	&cmt0_device,
207 	&cmt1_device,
208 };
209 
210 static int __init sh7619_devices_setup(void)
211 {
212 	return platform_add_devices(sh7619_devices,
213 				    ARRAY_SIZE(sh7619_devices));
214 }
215 arch_initcall(sh7619_devices_setup);
216 
217 void __init plat_irq_setup(void)
218 {
219 	register_intc_controller(&intc_desc);
220 }
221 
222 static struct platform_device *sh7619_early_devices[] __initdata = {
223 	&scif0_device,
224 	&scif1_device,
225 	&scif2_device,
226 	&cmt0_device,
227 	&cmt1_device,
228 };
229 
230 #define STBCR3 0xf80a0000
231 
232 void __init plat_early_device_setup(void)
233 {
234 	/* enable CMT clock */
235 	__raw_writeb(__raw_readb(STBCR3) & ~0x10, STBCR3);
236 
237 	early_platform_add_devices(sh7619_early_devices,
238 				   ARRAY_SIZE(sh7619_early_devices));
239 }
240