]>
Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
dbdf9ced | 2 | * linux/arch/arm/mach-omap1/board-voiceblue.c |
1da177e4 LT |
3 | * |
4 | * Modified from board-generic.c | |
5 | * | |
6 | * Copyright (C) 2004 2N Telekomunikace, Ladislav Michl <michl@2n.cz> | |
7 | * | |
8 | * Code for OMAP5910 based VoiceBlue board (VoIP to GSM gateway). | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | ||
15 | #include <linux/delay.h> | |
d052d1be | 16 | #include <linux/platform_device.h> |
1da177e4 | 17 | #include <linux/interrupt.h> |
652bcd8f | 18 | #include <linux/irq.h> |
1da177e4 LT |
19 | #include <linux/init.h> |
20 | #include <linux/kernel.h> | |
21 | #include <linux/notifier.h> | |
22 | #include <linux/reboot.h> | |
23 | #include <linux/serial_8250.h> | |
24 | #include <linux/serial_reg.h> | |
25 | ||
a09e64fb | 26 | #include <mach/hardware.h> |
1da177e4 LT |
27 | #include <asm/mach-types.h> |
28 | #include <asm/mach/arch.h> | |
7c38cf02 | 29 | #include <asm/mach/flash.h> |
1da177e4 LT |
30 | #include <asm/mach/map.h> |
31 | ||
ce491cf8 | 32 | #include <plat/common.h> |
a09e64fb | 33 | #include <mach/gpio.h> |
ce491cf8 TL |
34 | #include <plat/mux.h> |
35 | #include <plat/tc.h> | |
36 | #include <plat/usb.h> | |
1da177e4 | 37 | |
1da177e4 LT |
38 | static struct plat_serial8250_port voiceblue_ports[] = { |
39 | { | |
40 | .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x40000), | |
41 | .irq = OMAP_GPIO_IRQ(12), | |
42 | .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, | |
43 | .iotype = UPIO_MEM, | |
44 | .regshift = 1, | |
45 | .uartclk = 3686400, | |
46 | }, | |
47 | { | |
48 | .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000), | |
49 | .irq = OMAP_GPIO_IRQ(13), | |
50 | .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, | |
51 | .iotype = UPIO_MEM, | |
52 | .regshift = 1, | |
53 | .uartclk = 3686400, | |
54 | }, | |
55 | { | |
56 | .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000), | |
57 | .irq = OMAP_GPIO_IRQ(14), | |
58 | .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, | |
59 | .iotype = UPIO_MEM, | |
60 | .regshift = 1, | |
61 | .uartclk = 3686400, | |
62 | }, | |
63 | { | |
64 | .mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x70000), | |
65 | .irq = OMAP_GPIO_IRQ(15), | |
66 | .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, | |
67 | .iotype = UPIO_MEM, | |
68 | .regshift = 1, | |
69 | .uartclk = 3686400, | |
70 | }, | |
71 | { }, | |
72 | }; | |
73 | ||
74 | static struct platform_device serial_device = { | |
75 | .name = "serial8250", | |
6df29deb | 76 | .id = PLAT8250_DEV_PLATFORM1, |
1da177e4 LT |
77 | .dev = { |
78 | .platform_data = voiceblue_ports, | |
79 | }, | |
80 | }; | |
81 | ||
82 | static int __init ext_uart_init(void) | |
83 | { | |
84 | return platform_device_register(&serial_device); | |
85 | } | |
86 | arch_initcall(ext_uart_init); | |
87 | ||
7c38cf02 TL |
88 | static struct flash_platform_data voiceblue_flash_data = { |
89 | .map_name = "cfi_probe", | |
90 | .width = 2, | |
91 | }; | |
92 | ||
93 | static struct resource voiceblue_flash_resource = { | |
94 | .start = OMAP_CS0_PHYS, | |
95 | .end = OMAP_CS0_PHYS + SZ_32M - 1, | |
96 | .flags = IORESOURCE_MEM, | |
97 | }; | |
98 | ||
99 | static struct platform_device voiceblue_flash_device = { | |
100 | .name = "omapflash", | |
101 | .id = 0, | |
102 | .dev = { | |
103 | .platform_data = &voiceblue_flash_data, | |
104 | }, | |
105 | .num_resources = 1, | |
106 | .resource = &voiceblue_flash_resource, | |
107 | }; | |
108 | ||
1da177e4 LT |
109 | static struct resource voiceblue_smc91x_resources[] = { |
110 | [0] = { | |
111 | .start = OMAP_CS2_PHYS + 0x300, | |
112 | .end = OMAP_CS2_PHYS + 0x300 + 16, | |
113 | .flags = IORESOURCE_MEM, | |
114 | }, | |
115 | [1] = { | |
116 | .start = OMAP_GPIO_IRQ(8), | |
117 | .end = OMAP_GPIO_IRQ(8), | |
e7b3dc7e | 118 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, |
1da177e4 LT |
119 | }, |
120 | }; | |
121 | ||
122 | static struct platform_device voiceblue_smc91x_device = { | |
123 | .name = "smc91x", | |
124 | .id = 0, | |
125 | .num_resources = ARRAY_SIZE(voiceblue_smc91x_resources), | |
126 | .resource = voiceblue_smc91x_resources, | |
127 | }; | |
128 | ||
129 | static struct platform_device *voiceblue_devices[] __initdata = { | |
7c38cf02 | 130 | &voiceblue_flash_device, |
1da177e4 LT |
131 | &voiceblue_smc91x_device, |
132 | }; | |
133 | ||
134 | static struct omap_usb_config voiceblue_usb_config __initdata = { | |
135 | .hmc_mode = 3, | |
136 | .register_host = 1, | |
137 | .register_dev = 1, | |
138 | .pins[0] = 2, | |
139 | .pins[1] = 6, | |
140 | .pins[2] = 6, | |
141 | }; | |
142 | ||
143 | static struct omap_board_config_kernel voiceblue_config[] = { | |
1da177e4 LT |
144 | }; |
145 | ||
146 | static void __init voiceblue_init_irq(void) | |
147 | { | |
87bd63f6 | 148 | omap1_init_common_hw(); |
1da177e4 LT |
149 | omap_init_irq(); |
150 | omap_gpio_init(); | |
151 | } | |
152 | ||
153 | static void __init voiceblue_init(void) | |
154 | { | |
1da177e4 | 155 | /* Watchdog */ |
f2d18fea | 156 | gpio_request(0, "Watchdog"); |
1da177e4 | 157 | /* smc91x reset */ |
f2d18fea | 158 | gpio_request(7, "SMC91x reset"); |
e918edf7 | 159 | gpio_direction_output(7, 1); |
1da177e4 | 160 | udelay(2); /* wait at least 100ns */ |
0b84b5ca | 161 | gpio_set_value(7, 0); |
1da177e4 LT |
162 | mdelay(50); /* 50ms until PHY ready */ |
163 | /* smc91x interrupt pin */ | |
f2d18fea | 164 | gpio_request(8, "SMC91x irq"); |
1da177e4 | 165 | /* 16C554 reset*/ |
f2d18fea | 166 | gpio_request(6, "16C554 reset"); |
e918edf7 | 167 | gpio_direction_output(6, 0); |
1da177e4 | 168 | /* 16C554 interrupt pins */ |
f2d18fea JN |
169 | gpio_request(12, "16C554 irq"); |
170 | gpio_request(13, "16C554 irq"); | |
171 | gpio_request(14, "16C554 irq"); | |
172 | gpio_request(15, "16C554 irq"); | |
15f74b03 DB |
173 | set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING); |
174 | set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING); | |
175 | set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING); | |
176 | set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING); | |
1da177e4 LT |
177 | |
178 | platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices)); | |
179 | omap_board_config = voiceblue_config; | |
180 | omap_board_config_size = ARRAY_SIZE(voiceblue_config); | |
3179a019 | 181 | omap_serial_init(); |
b0b5aa3f | 182 | omap_usb_init(&voiceblue_usb_config); |
1ed16a86 | 183 | omap_register_i2c_bus(1, 100, NULL, 0); |
7c38cf02 TL |
184 | |
185 | /* There is a good chance board is going up, so enable power LED | |
186 | * (it is connected through invertor) */ | |
187 | omap_writeb(0x00, OMAP_LPG1_LCR); | |
188 | omap_writeb(0x00, OMAP_LPG1_PMR); /* Disable clock */ | |
1da177e4 LT |
189 | } |
190 | ||
1da177e4 LT |
191 | static void __init voiceblue_map_io(void) |
192 | { | |
87bd63f6 | 193 | omap1_map_common_io(); |
1da177e4 LT |
194 | } |
195 | ||
196 | #define MACHINE_PANICED 1 | |
197 | #define MACHINE_REBOOTING 2 | |
198 | #define MACHINE_REBOOT 4 | |
199 | static unsigned long machine_state; | |
200 | ||
201 | static int panic_event(struct notifier_block *this, unsigned long event, | |
202 | void *ptr) | |
203 | { | |
204 | if (test_and_set_bit(MACHINE_PANICED, &machine_state)) | |
205 | return NOTIFY_DONE; | |
206 | ||
7c38cf02 | 207 | /* Flash power LED */ |
1da177e4 | 208 | omap_writeb(0x78, OMAP_LPG1_LCR); |
7c38cf02 | 209 | omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */ |
1da177e4 LT |
210 | |
211 | return NOTIFY_DONE; | |
212 | } | |
213 | ||
214 | static struct notifier_block panic_block = { | |
215 | .notifier_call = panic_event, | |
216 | }; | |
217 | ||
7c38cf02 | 218 | static int __init voiceblue_setup(void) |
1da177e4 LT |
219 | { |
220 | /* Setup panic notifier */ | |
a524626b | 221 | atomic_notifier_chain_register(&panic_notifier_list, &panic_block); |
1da177e4 LT |
222 | |
223 | return 0; | |
224 | } | |
7c38cf02 | 225 | postcore_initcall(voiceblue_setup); |
1da177e4 LT |
226 | |
227 | static int wdt_gpio_state; | |
228 | ||
229 | void voiceblue_wdt_enable(void) | |
230 | { | |
e918edf7 | 231 | gpio_direction_output(0, 0); |
0b84b5ca DB |
232 | gpio_set_value(0, 1); |
233 | gpio_set_value(0, 0); | |
1da177e4 LT |
234 | wdt_gpio_state = 0; |
235 | } | |
236 | ||
237 | void voiceblue_wdt_disable(void) | |
238 | { | |
0b84b5ca DB |
239 | gpio_set_value(0, 0); |
240 | gpio_set_value(0, 1); | |
241 | gpio_set_value(0, 0); | |
40e3925b | 242 | gpio_direction_input(0); |
1da177e4 LT |
243 | } |
244 | ||
245 | void voiceblue_wdt_ping(void) | |
246 | { | |
247 | if (test_bit(MACHINE_REBOOT, &machine_state)) | |
248 | return; | |
249 | ||
250 | wdt_gpio_state = !wdt_gpio_state; | |
0b84b5ca | 251 | gpio_set_value(0, wdt_gpio_state); |
1da177e4 LT |
252 | } |
253 | ||
254 | void voiceblue_reset(void) | |
255 | { | |
256 | set_bit(MACHINE_REBOOT, &machine_state); | |
257 | voiceblue_wdt_enable(); | |
258 | while (1) ; | |
259 | } | |
260 | ||
261 | EXPORT_SYMBOL(voiceblue_wdt_enable); | |
262 | EXPORT_SYMBOL(voiceblue_wdt_disable); | |
263 | EXPORT_SYMBOL(voiceblue_wdt_ping); | |
264 | ||
265 | MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910") | |
e9dea0c6 | 266 | /* Maintainer: Ladislav Michl <michl@2n.cz> */ |
e9dea0c6 RK |
267 | .phys_io = 0xfff00000, |
268 | .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc, | |
269 | .boot_params = 0x10000100, | |
270 | .map_io = voiceblue_map_io, | |
271 | .init_irq = voiceblue_init_irq, | |
272 | .init_machine = voiceblue_init, | |
273 | .timer = &omap_timer, | |
1da177e4 | 274 | MACHINE_END |