Commit | Line | Data |
---|---|---|
e7736d47 LB |
1 | /* |
2 | * arch/arm/mach-ep93xx/ts72xx.c | |
3 | * Technologic Systems TS72xx SBC support. | |
4 | * | |
5 | * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> | |
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 (at | |
10 | * your option) any later version. | |
11 | */ | |
12 | ||
13 | #include <linux/config.h> | |
14 | #include <linux/kernel.h> | |
15 | #include <linux/init.h> | |
16 | #include <linux/mm.h> | |
17 | #include <linux/sched.h> | |
18 | #include <linux/interrupt.h> | |
0967b5f0 | 19 | #include <linux/ioport.h> |
e7736d47 | 20 | #include <linux/mtd/physmap.h> |
7ba01f97 LB |
21 | #include <linux/platform_device.h> |
22 | #include <linux/m48t86.h> | |
e7736d47 LB |
23 | #include <asm/io.h> |
24 | #include <asm/hardware.h> | |
25 | #include <asm/mach-types.h> | |
26 | #include <asm/mach/arch.h> | |
27 | #include <asm/mach/map.h> | |
28 | ||
29 | static struct map_desc ts72xx_io_desc[] __initdata = { | |
30 | { | |
31 | .virtual = TS72XX_MODEL_VIRT_BASE, | |
32 | .pfn = __phys_to_pfn(TS72XX_MODEL_PHYS_BASE), | |
33 | .length = TS72XX_MODEL_SIZE, | |
34 | .type = MT_DEVICE, | |
35 | }, { | |
36 | .virtual = TS72XX_OPTIONS_VIRT_BASE, | |
37 | .pfn = __phys_to_pfn(TS72XX_OPTIONS_PHYS_BASE), | |
38 | .length = TS72XX_OPTIONS_SIZE, | |
39 | .type = MT_DEVICE, | |
40 | }, { | |
41 | .virtual = TS72XX_OPTIONS2_VIRT_BASE, | |
42 | .pfn = __phys_to_pfn(TS72XX_OPTIONS2_PHYS_BASE), | |
43 | .length = TS72XX_OPTIONS2_SIZE, | |
44 | .type = MT_DEVICE, | |
7ba01f97 LB |
45 | }, { |
46 | .virtual = TS72XX_RTC_INDEX_VIRT_BASE, | |
47 | .pfn = __phys_to_pfn(TS72XX_RTC_INDEX_PHYS_BASE), | |
48 | .length = TS72XX_RTC_INDEX_SIZE, | |
49 | .type = MT_DEVICE, | |
50 | }, { | |
51 | .virtual = TS72XX_RTC_DATA_VIRT_BASE, | |
52 | .pfn = __phys_to_pfn(TS72XX_RTC_DATA_PHYS_BASE), | |
53 | .length = TS72XX_RTC_DATA_SIZE, | |
54 | .type = MT_DEVICE, | |
e7736d47 LB |
55 | } |
56 | }; | |
57 | ||
58 | static struct map_desc ts72xx_nand_io_desc[] __initdata = { | |
59 | { | |
60 | .virtual = TS72XX_NAND_DATA_VIRT_BASE, | |
61 | .pfn = __phys_to_pfn(TS72XX_NAND1_DATA_PHYS_BASE), | |
62 | .length = TS72XX_NAND_DATA_SIZE, | |
63 | .type = MT_DEVICE, | |
64 | }, { | |
65 | .virtual = TS72XX_NAND_CONTROL_VIRT_BASE, | |
66 | .pfn = __phys_to_pfn(TS72XX_NAND1_CONTROL_PHYS_BASE), | |
67 | .length = TS72XX_NAND_CONTROL_SIZE, | |
68 | .type = MT_DEVICE, | |
69 | }, { | |
70 | .virtual = TS72XX_NAND_BUSY_VIRT_BASE, | |
71 | .pfn = __phys_to_pfn(TS72XX_NAND1_BUSY_PHYS_BASE), | |
72 | .length = TS72XX_NAND_BUSY_SIZE, | |
73 | .type = MT_DEVICE, | |
74 | } | |
75 | }; | |
76 | ||
77 | static struct map_desc ts72xx_alternate_nand_io_desc[] __initdata = { | |
78 | { | |
79 | .virtual = TS72XX_NAND_DATA_VIRT_BASE, | |
80 | .pfn = __phys_to_pfn(TS72XX_NAND2_DATA_PHYS_BASE), | |
81 | .length = TS72XX_NAND_DATA_SIZE, | |
82 | .type = MT_DEVICE, | |
83 | }, { | |
84 | .virtual = TS72XX_NAND_CONTROL_VIRT_BASE, | |
85 | .pfn = __phys_to_pfn(TS72XX_NAND2_CONTROL_PHYS_BASE), | |
86 | .length = TS72XX_NAND_CONTROL_SIZE, | |
87 | .type = MT_DEVICE, | |
88 | }, { | |
89 | .virtual = TS72XX_NAND_BUSY_VIRT_BASE, | |
90 | .pfn = __phys_to_pfn(TS72XX_NAND2_BUSY_PHYS_BASE), | |
91 | .length = TS72XX_NAND_BUSY_SIZE, | |
92 | .type = MT_DEVICE, | |
93 | } | |
94 | }; | |
95 | ||
96 | static void __init ts72xx_map_io(void) | |
97 | { | |
98 | ep93xx_map_io(); | |
99 | iotable_init(ts72xx_io_desc, ARRAY_SIZE(ts72xx_io_desc)); | |
100 | ||
101 | /* | |
102 | * The TS-7200 has NOR flash, the other models have NAND flash. | |
103 | */ | |
104 | if (!board_is_ts7200()) { | |
105 | if (is_ts9420_installed()) { | |
106 | iotable_init(ts72xx_alternate_nand_io_desc, | |
107 | ARRAY_SIZE(ts72xx_alternate_nand_io_desc)); | |
108 | } else { | |
109 | iotable_init(ts72xx_nand_io_desc, | |
110 | ARRAY_SIZE(ts72xx_nand_io_desc)); | |
111 | } | |
112 | } | |
113 | } | |
114 | ||
0967b5f0 LB |
115 | static struct physmap_flash_data ts72xx_flash_data = { |
116 | .width = 1, | |
117 | }; | |
118 | ||
119 | static struct resource ts72xx_flash_resource = { | |
120 | .start = TS72XX_NOR_PHYS_BASE, | |
562ca1e3 | 121 | .end = TS72XX_NOR_PHYS_BASE + 0x00ffffff, |
0967b5f0 LB |
122 | .flags = IORESOURCE_MEM, |
123 | }; | |
124 | ||
125 | static struct platform_device ts72xx_flash = { | |
126 | .name = "physmap-flash", | |
127 | .id = 0, | |
128 | .dev = { | |
129 | .platform_data = &ts72xx_flash_data, | |
130 | }, | |
131 | .num_resources = 1, | |
132 | .resource = &ts72xx_flash_resource, | |
133 | }; | |
134 | ||
fd0a0ac1 | 135 | static unsigned char ts72xx_rtc_readbyte(unsigned long addr) |
7ba01f97 LB |
136 | { |
137 | __raw_writeb(addr, TS72XX_RTC_INDEX_VIRT_BASE); | |
138 | return __raw_readb(TS72XX_RTC_DATA_VIRT_BASE); | |
139 | } | |
140 | ||
fd0a0ac1 | 141 | static void ts72xx_rtc_writebyte(unsigned char value, unsigned long addr) |
7ba01f97 LB |
142 | { |
143 | __raw_writeb(addr, TS72XX_RTC_INDEX_VIRT_BASE); | |
144 | __raw_writeb(value, TS72XX_RTC_DATA_VIRT_BASE); | |
145 | } | |
146 | ||
147 | static struct m48t86_ops ts72xx_rtc_ops = { | |
fd0a0ac1 LB |
148 | .readbyte = ts72xx_rtc_readbyte, |
149 | .writebyte = ts72xx_rtc_writebyte, | |
7ba01f97 LB |
150 | }; |
151 | ||
152 | static struct platform_device ts72xx_rtc_device = { | |
153 | .name = "rtc-m48t86", | |
154 | .id = -1, | |
155 | .dev = { | |
156 | .platform_data = &ts72xx_rtc_ops, | |
157 | }, | |
158 | .num_resources = 0, | |
159 | }; | |
160 | ||
e7736d47 LB |
161 | static void __init ts72xx_init_machine(void) |
162 | { | |
163 | ep93xx_init_devices(); | |
164 | if (board_is_ts7200()) | |
0967b5f0 | 165 | platform_device_register(&ts72xx_flash); |
7ba01f97 | 166 | platform_device_register(&ts72xx_rtc_device); |
e7736d47 LB |
167 | } |
168 | ||
169 | MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC") | |
170 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ | |
171 | .phys_io = EP93XX_APB_PHYS_BASE, | |
172 | .io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc, | |
173 | .boot_params = 0x00000100, | |
174 | .map_io = ts72xx_map_io, | |
175 | .init_irq = ep93xx_init_irq, | |
176 | .timer = &ep93xx_timer, | |
177 | .init_machine = ts72xx_init_machine, | |
178 | MACHINE_END |