Merge master.kernel.org:/home/rmk/linux-2.6-arm
[linux-2.6.git] / arch / arm / mach-omap1 / board-voiceblue.c
1 /*
2  * linux/arch/arm/mach-omap1/board-voiceblue.c
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>
16 #include <linux/device.h>
17 #include <linux/interrupt.h>
18 #include <linux/init.h>
19 #include <linux/kernel.h>
20 #include <linux/notifier.h>
21 #include <linux/reboot.h>
22 #include <linux/serial_8250.h>
23 #include <linux/serial_reg.h>
24
25 #include <asm/hardware.h>
26 #include <asm/mach-types.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/flash.h>
29 #include <asm/mach/map.h>
30
31 #include <asm/arch/common.h>
32 #include <asm/arch/gpio.h>
33 #include <asm/arch/mux.h>
34 #include <asm/arch/tc.h>
35 #include <asm/arch/usb.h>
36
37 extern void omap_init_time(void);
38 extern int omap_gpio_init(void);
39
40 static struct plat_serial8250_port voiceblue_ports[] = {
41         {
42                 .mapbase        = (unsigned long)(OMAP_CS1_PHYS + 0x40000),
43                 .irq            = OMAP_GPIO_IRQ(12),
44                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
45                 .iotype         = UPIO_MEM,
46                 .regshift       = 1,
47                 .uartclk        = 3686400,
48         },
49         {
50                 .mapbase        = (unsigned long)(OMAP_CS1_PHYS + 0x50000),
51                 .irq            = OMAP_GPIO_IRQ(13),
52                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
53                 .iotype         = UPIO_MEM,
54                 .regshift       = 1,
55                 .uartclk        = 3686400,
56         },
57         {
58                 .mapbase        = (unsigned long)(OMAP_CS1_PHYS + 0x60000),
59                 .irq            = OMAP_GPIO_IRQ(14),
60                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
61                 .iotype         = UPIO_MEM,
62                 .regshift       = 1,
63                 .uartclk        = 3686400,
64         },
65         {
66                 .mapbase        = (unsigned long)(OMAP_CS1_PHYS + 0x70000),
67                 .irq            = OMAP_GPIO_IRQ(15),
68                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
69                 .iotype         = UPIO_MEM,
70                 .regshift       = 1,
71                 .uartclk        = 3686400,
72         },
73         { },
74 };
75
76 static struct platform_device serial_device = {
77         .name                   = "serial8250",
78         .id                     = 1,
79         .dev                    = {
80                 .platform_data  = voiceblue_ports,
81         },
82 };
83
84 static int __init ext_uart_init(void)
85 {
86         return platform_device_register(&serial_device);
87 }
88 arch_initcall(ext_uart_init);
89
90 static struct flash_platform_data voiceblue_flash_data = {
91         .map_name       = "cfi_probe",
92         .width          = 2,
93 };
94
95 static struct resource voiceblue_flash_resource = {
96         .start  = OMAP_CS0_PHYS,
97         .end    = OMAP_CS0_PHYS + SZ_32M - 1,
98         .flags  = IORESOURCE_MEM,
99 };
100
101 static struct platform_device voiceblue_flash_device = {
102         .name           = "omapflash",
103         .id             = 0,
104         .dev            = {
105                 .platform_data  = &voiceblue_flash_data,
106         },
107         .num_resources  = 1,
108         .resource       = &voiceblue_flash_resource,
109 };
110
111 static struct resource voiceblue_smc91x_resources[] = {
112         [0] = {
113                 .start  = OMAP_CS2_PHYS + 0x300,
114                 .end    = OMAP_CS2_PHYS + 0x300 + 16,
115                 .flags  = IORESOURCE_MEM,
116         },
117         [1] = {
118                 .start  = OMAP_GPIO_IRQ(8),
119                 .end    = OMAP_GPIO_IRQ(8),
120                 .flags  = IORESOURCE_IRQ,
121         },
122 };
123
124 static struct platform_device voiceblue_smc91x_device = {
125         .name           = "smc91x",
126         .id             = 0,
127         .num_resources  = ARRAY_SIZE(voiceblue_smc91x_resources),
128         .resource       = voiceblue_smc91x_resources,
129 };
130
131 static struct platform_device *voiceblue_devices[] __initdata = {
132         &voiceblue_flash_device,
133         &voiceblue_smc91x_device,
134 };
135
136 static struct omap_usb_config voiceblue_usb_config __initdata = {
137         .hmc_mode       = 3,
138         .register_host  = 1,
139         .register_dev   = 1,
140         .pins[0]        = 2,
141         .pins[1]        = 6,
142         .pins[2]        = 6,
143 };
144
145 static struct omap_mmc_config voiceblue_mmc_config __initdata = {
146         .mmc[0] = {
147                 .enabled        = 1,
148                 .power_pin      = 2,
149                 .switch_pin     = -1,
150         },
151 };
152
153 static struct omap_board_config_kernel voiceblue_config[] = {
154         { OMAP_TAG_USB, &voiceblue_usb_config },
155         { OMAP_TAG_MMC, &voiceblue_mmc_config },
156 };
157
158 static void __init voiceblue_init_irq(void)
159 {
160         omap_init_irq();
161         omap_gpio_init();
162 }
163
164 static void __init voiceblue_init(void)
165 {
166         /* Watchdog */
167         omap_request_gpio(0);
168         /* smc91x reset */
169         omap_request_gpio(7);
170         omap_set_gpio_direction(7, 0);
171         omap_set_gpio_dataout(7, 1);
172         udelay(2);      /* wait at least 100ns */
173         omap_set_gpio_dataout(7, 0);
174         mdelay(50);     /* 50ms until PHY ready */
175         /* smc91x interrupt pin */
176         omap_request_gpio(8);
177         /* 16C554 reset*/
178         omap_request_gpio(6);
179         omap_set_gpio_direction(6, 0);
180         omap_set_gpio_dataout(6, 0);
181         /* 16C554 interrupt pins */
182         omap_request_gpio(12);
183         omap_request_gpio(13);
184         omap_request_gpio(14);
185         omap_request_gpio(15);
186         set_irq_type(OMAP_GPIO_IRQ(12), IRQT_RISING);
187         set_irq_type(OMAP_GPIO_IRQ(13), IRQT_RISING);
188         set_irq_type(OMAP_GPIO_IRQ(14), IRQT_RISING);
189         set_irq_type(OMAP_GPIO_IRQ(15), IRQT_RISING);
190
191         platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
192         omap_board_config = voiceblue_config;
193         omap_board_config_size = ARRAY_SIZE(voiceblue_config);
194
195         /* There is a good chance board is going up, so enable power LED
196          * (it is connected through invertor) */
197         omap_writeb(0x00, OMAP_LPG1_LCR);
198         omap_writeb(0x00, OMAP_LPG1_PMR);       /* Disable clock */
199 }
200
201 static int __initdata omap_serial_ports[OMAP_MAX_NR_PORTS] = {1, 1, 1};
202
203 static void __init voiceblue_map_io(void)
204 {
205         omap_map_common_io();
206         omap_serial_init(omap_serial_ports);
207 }
208
209 #define MACHINE_PANICED         1
210 #define MACHINE_REBOOTING       2
211 #define MACHINE_REBOOT          4
212 static unsigned long machine_state;
213
214 static int panic_event(struct notifier_block *this, unsigned long event,
215          void *ptr)
216 {
217         if (test_and_set_bit(MACHINE_PANICED, &machine_state))
218                 return NOTIFY_DONE;
219
220         /* Flash power LED */
221         omap_writeb(0x78, OMAP_LPG1_LCR);
222         omap_writeb(0x01, OMAP_LPG1_PMR);       /* Enable clock */
223
224         return NOTIFY_DONE;
225 }
226
227 static struct notifier_block panic_block = {
228         .notifier_call  = panic_event,
229 };
230
231 static int __init voiceblue_setup(void)
232 {
233         /* Setup panic notifier */
234         notifier_chain_register(&panic_notifier_list, &panic_block);
235
236         return 0;
237 }
238 postcore_initcall(voiceblue_setup);
239
240 static int wdt_gpio_state;
241
242 void voiceblue_wdt_enable(void)
243 {
244         omap_set_gpio_direction(0, 0);
245         omap_set_gpio_dataout(0, 0);
246         omap_set_gpio_dataout(0, 1);
247         omap_set_gpio_dataout(0, 0);
248         wdt_gpio_state = 0;
249 }
250
251 void voiceblue_wdt_disable(void)
252 {
253         omap_set_gpio_dataout(0, 0);
254         omap_set_gpio_dataout(0, 1);
255         omap_set_gpio_dataout(0, 0);
256         omap_set_gpio_direction(0, 1);
257 }
258
259 void voiceblue_wdt_ping(void)
260 {
261         if (test_bit(MACHINE_REBOOT, &machine_state))
262                 return;
263
264         wdt_gpio_state = !wdt_gpio_state;
265         omap_set_gpio_dataout(0, wdt_gpio_state);
266 }
267
268 void voiceblue_reset(void)
269 {
270         set_bit(MACHINE_REBOOT, &machine_state);
271         voiceblue_wdt_enable();
272         while (1) ;
273 }
274
275 EXPORT_SYMBOL(voiceblue_wdt_enable);
276 EXPORT_SYMBOL(voiceblue_wdt_disable);
277 EXPORT_SYMBOL(voiceblue_wdt_ping);
278
279 MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
280         /* Maintainer: Ladislav Michl <michl@2n.cz> */
281         .phys_ram       = 0x10000000,
282         .phys_io        = 0xfff00000,
283         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
284         .boot_params    = 0x10000100,
285         .map_io         = voiceblue_map_io,
286         .init_irq       = voiceblue_init_irq,
287         .init_machine   = voiceblue_init,
288         .timer          = &omap_timer,
289 MACHINE_END