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1 | /* |
2 | * Copyright (C) 2009 Renesas Solutions Corp. | |
3 | * | |
4 | * Kuninori Morimoto <morimoto.kuninori@renesas.com> | |
5 | * | |
6 | * This file is subject to the terms and conditions of the GNU General Public | |
7 | * License. See the file "COPYING" in the main directory of this archive | |
8 | * for more details. | |
9 | */ | |
10 | ||
11 | #include <linux/init.h> | |
12 | #include <linux/device.h> | |
13 | #include <linux/platform_device.h> | |
14 | #include <linux/mtd/physmap.h> | |
15 | #include <linux/gpio.h> | |
16 | #include <linux/interrupt.h> | |
17 | #include <asm/io.h> | |
18 | #include <asm/heartbeat.h> | |
19 | #include <cpu/sh7724.h> | |
20 | ||
21 | /* | |
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22 | * Address Interface BusWidth |
23 | *----------------------------------------- | |
24 | * 0x0000_0000 uboot 16bit | |
25 | * 0x0004_0000 Linux romImage 16bit | |
26 | * 0x0014_0000 MTD for Linux 16bit | |
27 | * 0x0400_0000 Internal I/O 16/32bit | |
28 | * 0x0800_0000 DRAM 32bit | |
29 | * 0x1800_0000 MFI 16bit | |
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30 | */ |
31 | ||
32 | /* Heartbeat */ | |
33 | static unsigned char led_pos[] = { 0, 1, 2, 3 }; | |
34 | static struct heartbeat_data heartbeat_data = { | |
35 | .regsize = 8, | |
36 | .nr_bits = 4, | |
37 | .bit_pos = led_pos, | |
38 | }; | |
39 | ||
40 | static struct resource heartbeat_resources[] = { | |
41 | [0] = { | |
42 | .start = 0xA405012C, /* PTG */ | |
43 | .end = 0xA405012E - 1, | |
44 | .flags = IORESOURCE_MEM, | |
45 | }, | |
46 | }; | |
47 | ||
48 | static struct platform_device heartbeat_device = { | |
49 | .name = "heartbeat", | |
50 | .id = -1, | |
51 | .dev = { | |
52 | .platform_data = &heartbeat_data, | |
53 | }, | |
54 | .num_resources = ARRAY_SIZE(heartbeat_resources), | |
55 | .resource = heartbeat_resources, | |
56 | }; | |
57 | ||
58 | /* MTD */ | |
59 | static struct mtd_partition nor_flash_partitions[] = { | |
60 | { | |
b7056bc1 | 61 | .name = "boot loader", |
4138b740 | 62 | .offset = 0, |
b7056bc1 | 63 | .size = (5 * 1024 * 1024), |
4138b740 | 64 | .mask_flags = MTD_CAP_ROM, |
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65 | }, { |
66 | .name = "free-area", | |
67 | .offset = MTDPART_OFS_APPEND, | |
68 | .size = MTDPART_SIZ_FULL, | |
69 | }, | |
70 | }; | |
71 | ||
72 | static struct physmap_flash_data nor_flash_data = { | |
73 | .width = 2, | |
74 | .parts = nor_flash_partitions, | |
75 | .nr_parts = ARRAY_SIZE(nor_flash_partitions), | |
76 | }; | |
77 | ||
78 | static struct resource nor_flash_resources[] = { | |
79 | [0] = { | |
80 | .name = "NOR Flash", | |
81 | .start = 0x00000000, | |
82 | .end = 0x03ffffff, | |
83 | .flags = IORESOURCE_MEM, | |
84 | } | |
85 | }; | |
86 | ||
87 | static struct platform_device nor_flash_device = { | |
88 | .name = "physmap-flash", | |
89 | .resource = nor_flash_resources, | |
90 | .num_resources = ARRAY_SIZE(nor_flash_resources), | |
91 | .dev = { | |
92 | .platform_data = &nor_flash_data, | |
93 | }, | |
94 | }; | |
95 | ||
96 | static struct platform_device *ecovec_devices[] __initdata = { | |
97 | &heartbeat_device, | |
98 | &nor_flash_device, | |
99 | }; | |
100 | ||
101 | static int __init devices_setup(void) | |
102 | { | |
103 | /* enable SCIFA0 */ | |
104 | gpio_request(GPIO_FN_SCIF0_TXD, NULL); | |
105 | gpio_request(GPIO_FN_SCIF0_RXD, NULL); | |
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106 | |
107 | /* enable debug LED */ | |
108 | gpio_request(GPIO_PTG0, NULL); | |
109 | gpio_request(GPIO_PTG1, NULL); | |
110 | gpio_request(GPIO_PTG2, NULL); | |
111 | gpio_request(GPIO_PTG3, NULL); | |
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112 | gpio_direction_output(GPIO_PTG0, 0); |
113 | gpio_direction_output(GPIO_PTG1, 0); | |
114 | gpio_direction_output(GPIO_PTG2, 0); | |
115 | gpio_direction_output(GPIO_PTG3, 0); | |
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116 | |
117 | return platform_add_devices(ecovec_devices, | |
118 | ARRAY_SIZE(ecovec_devices)); | |
119 | } | |
120 | device_initcall(devices_setup); | |
121 | ||
122 | static struct sh_machine_vector mv_ecovec __initmv = { | |
123 | .mv_name = "R0P7724 (EcoVec)", | |
124 | }; |