xref: /openbmc/linux/arch/sh/boards/board-edosk7760.c (revision 9ac8d3fb)
1 /*
2  * Renesas Europe EDOSK7760 Board Support
3  *
4  * Copyright (C) 2008 SPES Societa' Progettazione Elettronica e Software Ltd.
5  * Author: Luca Santini <luca.santini@spesonline.com>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20  */
21 #include <linux/init.h>
22 #include <linux/types.h>
23 #include <linux/platform_device.h>
24 #include <linux/smc91x.h>
25 #include <linux/interrupt.h>
26 #include <linux/i2c.h>
27 #include <linux/mtd/physmap.h>
28 #include <asm/machvec.h>
29 #include <asm/io.h>
30 #include <asm/addrspace.h>
31 #include <asm/delay.h>
32 #include <asm/i2c-sh7760.h>
33 #include <asm/sizes.h>
34 
35 /* Bus state controller registers for CS4 area */
36 #define BSC_CS4BCR	0xA4FD0010
37 #define BSC_CS4WCR	0xA4FD0030
38 
39 #define SMC_IOBASE	0xA2000000
40 #define SMC_IO_OFFSET	0x300
41 #define SMC_IOADDR	(SMC_IOBASE + SMC_IO_OFFSET)
42 
43 #define ETHERNET_IRQ	5
44 
45 /* NOR flash */
46 static struct mtd_partition edosk7760_nor_flash_partitions[] = {
47 	{
48 		.name = "bootloader",
49 		.offset = 0,
50 		.size = SZ_256K,
51 		.mask_flags = MTD_WRITEABLE,	/* Read-only */
52 	}, {
53 		.name = "kernel",
54 		.offset = MTDPART_OFS_APPEND,
55 		.size = SZ_2M,
56 	}, {
57 		.name = "fs",
58 		.offset = MTDPART_OFS_APPEND,
59 		.size = SZ_26M,
60 	}, {
61 		.name = "other",
62 		.offset = MTDPART_OFS_APPEND,
63 		.size = MTDPART_SIZ_FULL,
64 	},
65 };
66 
67 static struct physmap_flash_data edosk7760_nor_flash_data = {
68 	.width		= 4,
69 	.parts		= edosk7760_nor_flash_partitions,
70 	.nr_parts	= ARRAY_SIZE(edosk7760_nor_flash_partitions),
71 };
72 
73 static struct resource edosk7760_nor_flash_resources[] = {
74 	[0] = {
75 		.name	= "NOR Flash",
76 		.start	= 0x00000000,
77 		.end	= 0x00000000 + SZ_32M - 1,
78 		.flags	= IORESOURCE_MEM,
79 	}
80 };
81 
82 static struct platform_device edosk7760_nor_flash_device = {
83 	.name		= "physmap-flash",
84 	.resource	= edosk7760_nor_flash_resources,
85 	.num_resources	= ARRAY_SIZE(edosk7760_nor_flash_resources),
86 	.dev		= {
87 		.platform_data = &edosk7760_nor_flash_data,
88 	},
89 };
90 
91 /* i2c initialization functions */
92 static struct sh7760_i2c_platdata i2c_pd = {
93 	.speed_khz	= 400,
94 };
95 
96 static struct resource sh7760_i2c1_res[] = {
97 	{
98 		.start	= SH7760_I2C1_MMIO,
99 		.end	= SH7760_I2C1_MMIOEND,
100 		.flags	= IORESOURCE_MEM,
101 	},{
102 		.start	= SH7760_I2C1_IRQ,
103 		.end	= SH7760_I2C1_IRQ,
104 		.flags	= IORESOURCE_IRQ,
105 	},
106 };
107 
108 static struct platform_device sh7760_i2c1_dev = {
109 	.dev    = {
110 		.platform_data	= &i2c_pd,
111 	},
112 
113 	.name		= SH7760_I2C_DEVNAME,
114 	.id		= 1,
115 	.resource	= sh7760_i2c1_res,
116 	.num_resources	= ARRAY_SIZE(sh7760_i2c1_res),
117 };
118 
119 static struct resource sh7760_i2c0_res[] = {
120 	{
121 		.start	= SH7760_I2C0_MMIO,
122 		.end	= SH7760_I2C0_MMIOEND,
123 		.flags	= IORESOURCE_MEM,
124 	}, {
125 		.start	= SH7760_I2C0_IRQ,
126 		.end	= SH7760_I2C0_IRQ,
127 		.flags	= IORESOURCE_IRQ,
128 	},
129 };
130 
131 static struct platform_device sh7760_i2c0_dev = {
132 	.dev    = {
133 		.platform_data	= &i2c_pd,
134 	},
135 	.name		= SH7760_I2C_DEVNAME,
136 	.id		= 0,
137 	.resource	= sh7760_i2c0_res,
138 	.num_resources	= ARRAY_SIZE(sh7760_i2c0_res),
139 };
140 
141 /* eth initialization functions */
142 static struct smc91x_platdata smc91x_info = {
143 	.flags = SMC91X_USE_16BIT | SMC91X_IO_SHIFT_1 | IORESOURCE_IRQ_LOWLEVEL,
144 };
145 
146 static struct resource smc91x_res[] = {
147 	[0] = {
148 		.start	= SMC_IOADDR,
149 		.end	= SMC_IOADDR + SZ_32 - 1,
150 		.flags	= IORESOURCE_MEM,
151 	},
152 	[1] = {
153 		.start	= ETHERNET_IRQ,
154 		.end	= ETHERNET_IRQ,
155 		.flags	= IORESOURCE_IRQ ,
156 	}
157 };
158 
159 static struct platform_device smc91x_dev = {
160 	.name		= "smc91x",
161 	.id		= -1,
162 	.num_resources	= ARRAY_SIZE(smc91x_res),
163 	.resource	= smc91x_res,
164 
165 	.dev	= {
166 		.platform_data	= &smc91x_info,
167 	},
168 };
169 
170 /* platform init code */
171 static struct platform_device *edosk7760_devices[] __initdata = {
172 	&smc91x_dev,
173 	&edosk7760_nor_flash_device,
174 	&sh7760_i2c0_dev,
175 	&sh7760_i2c1_dev,
176 };
177 
178 static int __init init_edosk7760_devices(void)
179 {
180 	plat_irq_setup_pins(IRQ_MODE_IRQ);
181 
182 	return platform_add_devices(edosk7760_devices,
183 				    ARRAY_SIZE(edosk7760_devices));
184 }
185 __initcall(init_edosk7760_devices);
186 
187 /*
188  * The Machine Vector
189  */
190 struct sh_machine_vector mv_edosk7760 __initmv = {
191 	.mv_name	= "EDOSK7760",
192 	.mv_nr_irqs	= 128,
193 };
194