arm: mach-omap1: board-voiceblue: add missing include
[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/platform_device.h>
17 #include <linux/interrupt.h>
18 #include <linux/irq.h>
19 #include <linux/init.h>
20 #include <linux/kernel.h>
21 #include <linux/mtd/physmap.h>
22 #include <linux/notifier.h>
23 #include <linux/reboot.h>
24 #include <linux/serial_8250.h>
25 #include <linux/serial_reg.h>
26 #include <linux/smc91x.h>
27
28 #include <mach/hardware.h>
29 #include <mach/system.h>
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
32 #include <asm/mach/map.h>
33
34 #include <plat/board-voiceblue.h>
35 #include <plat/common.h>
36 #include <mach/gpio.h>
37 #include <plat/flash.h>
38 #include <plat/mux.h>
39 #include <plat/tc.h>
40 #include <plat/usb.h>
41
42 static struct plat_serial8250_port voiceblue_ports[] = {
43         {
44                 .mapbase        = (unsigned long)(OMAP_CS1_PHYS + 0x40000),
45                 .irq            = OMAP_GPIO_IRQ(12),
46                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
47                 .iotype         = UPIO_MEM,
48                 .regshift       = 1,
49                 .uartclk        = 3686400,
50         },
51         {
52                 .mapbase        = (unsigned long)(OMAP_CS1_PHYS + 0x50000),
53                 .irq            = OMAP_GPIO_IRQ(13),
54                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
55                 .iotype         = UPIO_MEM,
56                 .regshift       = 1,
57                 .uartclk        = 3686400,
58         },
59         {
60                 .mapbase        = (unsigned long)(OMAP_CS1_PHYS + 0x60000),
61                 .irq            = OMAP_GPIO_IRQ(14),
62                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
63                 .iotype         = UPIO_MEM,
64                 .regshift       = 1,
65                 .uartclk        = 3686400,
66         },
67         {
68                 .mapbase        = (unsigned long)(OMAP_CS1_PHYS + 0x70000),
69                 .irq            = OMAP_GPIO_IRQ(15),
70                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
71                 .iotype         = UPIO_MEM,
72                 .regshift       = 1,
73                 .uartclk        = 3686400,
74         },
75         { },
76 };
77
78 static struct platform_device serial_device = {
79         .name                   = "serial8250",
80         .id                     = PLAT8250_DEV_PLATFORM1,
81         .dev                    = {
82                 .platform_data  = voiceblue_ports,
83         },
84 };
85
86 static int __init ext_uart_init(void)
87 {
88         if (!machine_is_voiceblue())
89                 return -ENODEV;
90
91         return platform_device_register(&serial_device);
92 }
93 arch_initcall(ext_uart_init);
94
95 static struct physmap_flash_data voiceblue_flash_data = {
96         .width          = 2,
97         .set_vpp        = omap1_set_vpp,
98 };
99
100 static struct resource voiceblue_flash_resource = {
101         .start  = OMAP_CS0_PHYS,
102         .end    = OMAP_CS0_PHYS + SZ_32M - 1,
103         .flags  = IORESOURCE_MEM,
104 };
105
106 static struct platform_device voiceblue_flash_device = {
107         .name           = "physmap-flash",
108         .id             = 0,
109         .dev            = {
110                 .platform_data  = &voiceblue_flash_data,
111         },
112         .num_resources  = 1,
113         .resource       = &voiceblue_flash_resource,
114 };
115
116 static struct smc91x_platdata voiceblue_smc91x_info = {
117         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
118         .leda   = RPC_LED_100_10,
119         .ledb   = RPC_LED_TX_RX,
120 };
121
122 static struct resource voiceblue_smc91x_resources[] = {
123         [0] = {
124                 .start  = OMAP_CS2_PHYS + 0x300,
125                 .end    = OMAP_CS2_PHYS + 0x300 + 16,
126                 .flags  = IORESOURCE_MEM,
127         },
128         [1] = {
129                 .start  = OMAP_GPIO_IRQ(8),
130                 .end    = OMAP_GPIO_IRQ(8),
131                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
132         },
133 };
134
135 static struct platform_device voiceblue_smc91x_device = {
136         .name           = "smc91x",
137         .id             = 0,
138         .dev    = {
139                 .platform_data  = &voiceblue_smc91x_info,
140         },
141         .num_resources  = ARRAY_SIZE(voiceblue_smc91x_resources),
142         .resource       = voiceblue_smc91x_resources,
143 };
144
145 static struct platform_device *voiceblue_devices[] __initdata = {
146         &voiceblue_flash_device,
147         &voiceblue_smc91x_device,
148 };
149
150 static struct omap_usb_config voiceblue_usb_config __initdata = {
151         .hmc_mode       = 3,
152         .register_host  = 1,
153         .register_dev   = 1,
154         .pins[0]        = 2,
155         .pins[1]        = 6,
156         .pins[2]        = 6,
157 };
158
159 static struct omap_board_config_kernel voiceblue_config[] = {
160 };
161
162 static void __init voiceblue_init_irq(void)
163 {
164         omap1_init_common_hw();
165         omap_init_irq();
166 }
167
168 static void __init voiceblue_map_io(void)
169 {
170         omap1_map_common_io();
171 }
172
173 #define MACHINE_PANICED         1
174 #define MACHINE_REBOOTING       2
175 #define MACHINE_REBOOT          4
176 static unsigned long machine_state;
177
178 static int panic_event(struct notifier_block *this, unsigned long event,
179          void *ptr)
180 {
181         if (test_and_set_bit(MACHINE_PANICED, &machine_state))
182                 return NOTIFY_DONE;
183
184         /* Flash power LED */
185         omap_writeb(0x78, OMAP_LPG1_LCR);
186         omap_writeb(0x01, OMAP_LPG1_PMR);       /* Enable clock */
187
188         return NOTIFY_DONE;
189 }
190
191 static struct notifier_block panic_block = {
192         .notifier_call  = panic_event,
193 };
194
195 static int __init voiceblue_setup(void)
196 {
197         if (!machine_is_voiceblue())
198                 return -ENODEV;
199
200         /* Setup panic notifier */
201         atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
202
203         return 0;
204 }
205 postcore_initcall(voiceblue_setup);
206
207 static int wdt_gpio_state;
208
209 void voiceblue_wdt_enable(void)
210 {
211         gpio_direction_output(0, 0);
212         gpio_set_value(0, 1);
213         gpio_set_value(0, 0);
214         wdt_gpio_state = 0;
215 }
216
217 void voiceblue_wdt_disable(void)
218 {
219         gpio_set_value(0, 0);
220         gpio_set_value(0, 1);
221         gpio_set_value(0, 0);
222         gpio_direction_input(0);
223 }
224
225 void voiceblue_wdt_ping(void)
226 {
227         if (test_bit(MACHINE_REBOOT, &machine_state))
228                 return;
229
230         wdt_gpio_state = !wdt_gpio_state;
231         gpio_set_value(0, wdt_gpio_state);
232 }
233
234 static void voiceblue_reset(char mode, const char *cmd)
235 {
236         /*
237          * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
238          * "Global Software Reset Affects Traffic Controller Frequency".
239          */
240         if (cpu_is_omap5912()) {
241                 omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4), DPLL_CTL);
242                 omap_writew(0x8, ARM_RSTCT1);
243         }
244
245         set_bit(MACHINE_REBOOT, &machine_state);
246         voiceblue_wdt_enable();
247         while (1) ;
248 }
249
250 EXPORT_SYMBOL(voiceblue_wdt_enable);
251 EXPORT_SYMBOL(voiceblue_wdt_disable);
252 EXPORT_SYMBOL(voiceblue_wdt_ping);
253
254 static void __init voiceblue_init(void)
255 {
256         /* mux pins for uarts */
257         omap_cfg_reg(UART1_TX);
258         omap_cfg_reg(UART1_RTS);
259         omap_cfg_reg(UART2_TX);
260         omap_cfg_reg(UART2_RTS);
261         omap_cfg_reg(UART3_TX);
262         omap_cfg_reg(UART3_RX);
263
264         /* Watchdog */
265         gpio_request(0, "Watchdog");
266         /* smc91x reset */
267         gpio_request(7, "SMC91x reset");
268         gpio_direction_output(7, 1);
269         udelay(2);      /* wait at least 100ns */
270         gpio_set_value(7, 0);
271         mdelay(50);     /* 50ms until PHY ready */
272         /* smc91x interrupt pin */
273         gpio_request(8, "SMC91x irq");
274         /* 16C554 reset*/
275         gpio_request(6, "16C554 reset");
276         gpio_direction_output(6, 0);
277         /* 16C554 interrupt pins */
278         gpio_request(12, "16C554 irq");
279         gpio_request(13, "16C554 irq");
280         gpio_request(14, "16C554 irq");
281         gpio_request(15, "16C554 irq");
282         set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING);
283         set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
284         set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING);
285         set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING);
286
287         platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
288         omap_board_config = voiceblue_config;
289         omap_board_config_size = ARRAY_SIZE(voiceblue_config);
290         omap_serial_init();
291         omap1_usb_init(&voiceblue_usb_config);
292         omap_register_i2c_bus(1, 100, NULL, 0);
293
294         /* There is a good chance board is going up, so enable power LED
295          * (it is connected through invertor) */
296         omap_writeb(0x00, OMAP_LPG1_LCR);
297         omap_writeb(0x00, OMAP_LPG1_PMR);       /* Disable clock */
298
299         arch_reset = voiceblue_reset;
300 }
301
302 MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
303         /* Maintainer: Ladislav Michl <michl@2n.cz> */
304         .boot_params    = 0x10000100,
305         .map_io         = voiceblue_map_io,
306         .reserve        = omap_reserve,
307         .init_irq       = voiceblue_init_irq,
308         .init_machine   = voiceblue_init,
309         .timer          = &omap_timer,
310 MACHINE_END