1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Renesas Europe EDOSK7760 Board Support
4  *
5  * Copyright (C) 2008 SPES Societa' Progettazione Elettronica e Software Ltd.
6  * Author: Luca Santini <luca.santini@spesonline.com>
7  */
8 #include <linux/init.h>
9 #include <linux/types.h>
10 #include <linux/platform_device.h>
11 #include <linux/smc91x.h>
12 #include <linux/interrupt.h>
13 #include <linux/sh_intc.h>
14 #include <linux/i2c.h>
15 #include <linux/mtd/physmap.h>
16 #include <asm/machvec.h>
17 #include <asm/io.h>
18 #include <asm/addrspace.h>
19 #include <asm/delay.h>
20 #include <asm/i2c-sh7760.h>
21 #include <linux/sizes.h>
22 
23 /* Bus state controller registers for CS4 area */
24 #define BSC_CS4BCR	0xA4FD0010
25 #define BSC_CS4WCR	0xA4FD0030
26 
27 #define SMC_IOBASE	0xA2000000
28 #define SMC_IO_OFFSET	0x300
29 #define SMC_IOADDR	(SMC_IOBASE + SMC_IO_OFFSET)
30 
31 /* NOR flash */
32 static struct mtd_partition edosk7760_nor_flash_partitions[] = {
33 	{
34 		.name = "bootloader",
35 		.offset = 0,
36 		.size = SZ_256K,
37 		.mask_flags = MTD_WRITEABLE,	/* Read-only */
38 	}, {
39 		.name = "kernel",
40 		.offset = MTDPART_OFS_APPEND,
41 		.size = SZ_2M,
42 	}, {
43 		.name = "fs",
44 		.offset = MTDPART_OFS_APPEND,
45 		.size = (26 << 20),
46 	}, {
47 		.name = "other",
48 		.offset = MTDPART_OFS_APPEND,
49 		.size = MTDPART_SIZ_FULL,
50 	},
51 };
52 
53 static struct physmap_flash_data edosk7760_nor_flash_data = {
54 	.width		= 4,
55 	.parts		= edosk7760_nor_flash_partitions,
56 	.nr_parts	= ARRAY_SIZE(edosk7760_nor_flash_partitions),
57 };
58 
59 static struct resource edosk7760_nor_flash_resources[] = {
60 	[0] = {
61 		.name	= "NOR Flash",
62 		.start	= 0x00000000,
63 		.end	= 0x00000000 + SZ_32M - 1,
64 		.flags	= IORESOURCE_MEM,
65 	}
66 };
67 
68 static struct platform_device edosk7760_nor_flash_device = {
69 	.name		= "physmap-flash",
70 	.resource	= edosk7760_nor_flash_resources,
71 	.num_resources	= ARRAY_SIZE(edosk7760_nor_flash_resources),
72 	.dev		= {
73 		.platform_data = &edosk7760_nor_flash_data,
74 	},
75 };
76 
77 /* i2c initialization functions */
78 static struct sh7760_i2c_platdata i2c_pd = {
79 	.speed_khz	= 400,
80 };
81 
82 static struct resource sh7760_i2c1_res[] = {
83 	{
84 		.start	= SH7760_I2C1_MMIO,
85 		.end	= SH7760_I2C1_MMIOEND,
86 		.flags	= IORESOURCE_MEM,
87 	},{
88 		.start	= evt2irq(0x9e0),
89 		.end	= evt2irq(0x9e0),
90 		.flags	= IORESOURCE_IRQ,
91 	},
92 };
93 
94 static struct platform_device sh7760_i2c1_dev = {
95 	.dev    = {
96 		.platform_data	= &i2c_pd,
97 	},
98 
99 	.name		= SH7760_I2C_DEVNAME,
100 	.id		= 1,
101 	.resource	= sh7760_i2c1_res,
102 	.num_resources	= ARRAY_SIZE(sh7760_i2c1_res),
103 };
104 
105 static struct resource sh7760_i2c0_res[] = {
106 	{
107 		.start	= SH7760_I2C0_MMIO,
108 		.end	= SH7760_I2C0_MMIOEND,
109 		.flags	= IORESOURCE_MEM,
110 	}, {
111 		.start	= evt2irq(0x9c0),
112 		.end	= evt2irq(0x9c0),
113 		.flags	= IORESOURCE_IRQ,
114 	},
115 };
116 
117 static struct platform_device sh7760_i2c0_dev = {
118 	.dev    = {
119 		.platform_data	= &i2c_pd,
120 	},
121 	.name		= SH7760_I2C_DEVNAME,
122 	.id		= 0,
123 	.resource	= sh7760_i2c0_res,
124 	.num_resources	= ARRAY_SIZE(sh7760_i2c0_res),
125 };
126 
127 /* eth initialization functions */
128 static struct smc91x_platdata smc91x_info = {
129 	.flags = SMC91X_USE_16BIT | SMC91X_IO_SHIFT_1 | IORESOURCE_IRQ_LOWLEVEL,
130 };
131 
132 static struct resource smc91x_res[] = {
133 	[0] = {
134 		.start	= SMC_IOADDR,
135 		.end	= SMC_IOADDR + SZ_32 - 1,
136 		.flags	= IORESOURCE_MEM,
137 	},
138 	[1] = {
139 		.start	= evt2irq(0x2a0),
140 		.end	= evt2irq(0x2a0),
141 		.flags	= IORESOURCE_IRQ ,
142 	}
143 };
144 
145 static struct platform_device smc91x_dev = {
146 	.name		= "smc91x",
147 	.id		= -1,
148 	.num_resources	= ARRAY_SIZE(smc91x_res),
149 	.resource	= smc91x_res,
150 
151 	.dev	= {
152 		.platform_data	= &smc91x_info,
153 	},
154 };
155 
156 /* platform init code */
157 static struct platform_device *edosk7760_devices[] __initdata = {
158 	&smc91x_dev,
159 	&edosk7760_nor_flash_device,
160 	&sh7760_i2c0_dev,
161 	&sh7760_i2c1_dev,
162 };
163 
init_edosk7760_devices(void)164 static int __init init_edosk7760_devices(void)
165 {
166 	plat_irq_setup_pins(IRQ_MODE_IRQ);
167 
168 	return platform_add_devices(edosk7760_devices,
169 				    ARRAY_SIZE(edosk7760_devices));
170 }
171 device_initcall(init_edosk7760_devices);
172 
173 /*
174  * The Machine Vector
175  */
176 struct sh_machine_vector mv_edosk7760 __initmv = {
177 	.mv_name	= "EDOSK7760",
178 };
179