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omap1: Add initcall checks for omap1 and booted board
[mv-sheeva.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 <asm/mach-types.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32
33 #include <plat/common.h>
34 #include <mach/gpio.h>
35 #include <plat/flash.h>
36 #include <plat/mux.h>
37 #include <plat/tc.h>
38 #include <plat/usb.h>
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                     = PLAT8250_DEV_PLATFORM1,
79         .dev                    = {
80                 .platform_data  = voiceblue_ports,
81         },
82 };
83
84 static int __init ext_uart_init(void)
85 {
86         if (!machine_is_voiceblue())
87                 return -ENODEV;
88
89         return platform_device_register(&serial_device);
90 }
91 arch_initcall(ext_uart_init);
92
93 static struct physmap_flash_data voiceblue_flash_data = {
94         .width          = 2,
95         .set_vpp        = omap1_set_vpp,
96 };
97
98 static struct resource voiceblue_flash_resource = {
99         .start  = OMAP_CS0_PHYS,
100         .end    = OMAP_CS0_PHYS + SZ_32M - 1,
101         .flags  = IORESOURCE_MEM,
102 };
103
104 static struct platform_device voiceblue_flash_device = {
105         .name           = "physmap-flash",
106         .id             = 0,
107         .dev            = {
108                 .platform_data  = &voiceblue_flash_data,
109         },
110         .num_resources  = 1,
111         .resource       = &voiceblue_flash_resource,
112 };
113
114 static struct smc91x_platdata voiceblue_smc91x_info = {
115         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
116         .leda   = RPC_LED_100_10,
117         .ledb   = RPC_LED_TX_RX,
118 };
119
120 static struct resource voiceblue_smc91x_resources[] = {
121         [0] = {
122                 .start  = OMAP_CS2_PHYS + 0x300,
123                 .end    = OMAP_CS2_PHYS + 0x300 + 16,
124                 .flags  = IORESOURCE_MEM,
125         },
126         [1] = {
127                 .start  = OMAP_GPIO_IRQ(8),
128                 .end    = OMAP_GPIO_IRQ(8),
129                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
130         },
131 };
132
133 static struct platform_device voiceblue_smc91x_device = {
134         .name           = "smc91x",
135         .id             = 0,
136         .dev    = {
137                 .platform_data  = &voiceblue_smc91x_info,
138         },
139         .num_resources  = ARRAY_SIZE(voiceblue_smc91x_resources),
140         .resource       = voiceblue_smc91x_resources,
141 };
142
143 static struct platform_device *voiceblue_devices[] __initdata = {
144         &voiceblue_flash_device,
145         &voiceblue_smc91x_device,
146 };
147
148 static struct omap_usb_config voiceblue_usb_config __initdata = {
149         .hmc_mode       = 3,
150         .register_host  = 1,
151         .register_dev   = 1,
152         .pins[0]        = 2,
153         .pins[1]        = 6,
154         .pins[2]        = 6,
155 };
156
157 static struct omap_board_config_kernel voiceblue_config[] = {
158 };
159
160 static void __init voiceblue_init_irq(void)
161 {
162         omap1_init_common_hw();
163         omap_init_irq();
164         omap_gpio_init();
165 }
166
167 static void __init voiceblue_init(void)
168 {
169         /* mux pins for uarts */
170         omap_cfg_reg(UART1_TX);
171         omap_cfg_reg(UART1_RTS);
172         omap_cfg_reg(UART2_TX);
173         omap_cfg_reg(UART2_RTS);
174         omap_cfg_reg(UART3_TX);
175         omap_cfg_reg(UART3_RX);
176
177         /* Watchdog */
178         gpio_request(0, "Watchdog");
179         /* smc91x reset */
180         gpio_request(7, "SMC91x reset");
181         gpio_direction_output(7, 1);
182         udelay(2);      /* wait at least 100ns */
183         gpio_set_value(7, 0);
184         mdelay(50);     /* 50ms until PHY ready */
185         /* smc91x interrupt pin */
186         gpio_request(8, "SMC91x irq");
187         /* 16C554 reset*/
188         gpio_request(6, "16C554 reset");
189         gpio_direction_output(6, 0);
190         /* 16C554 interrupt pins */
191         gpio_request(12, "16C554 irq");
192         gpio_request(13, "16C554 irq");
193         gpio_request(14, "16C554 irq");
194         gpio_request(15, "16C554 irq");
195         set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING);
196         set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
197         set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING);
198         set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING);
199
200         platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
201         omap_board_config = voiceblue_config;
202         omap_board_config_size = ARRAY_SIZE(voiceblue_config);
203         omap_serial_init();
204         omap1_usb_init(&voiceblue_usb_config);
205         omap_register_i2c_bus(1, 100, NULL, 0);
206
207         /* There is a good chance board is going up, so enable power LED
208          * (it is connected through invertor) */
209         omap_writeb(0x00, OMAP_LPG1_LCR);
210         omap_writeb(0x00, OMAP_LPG1_PMR);       /* Disable clock */
211 }
212
213 static void __init voiceblue_map_io(void)
214 {
215         omap1_map_common_io();
216 }
217
218 #define MACHINE_PANICED         1
219 #define MACHINE_REBOOTING       2
220 #define MACHINE_REBOOT          4
221 static unsigned long machine_state;
222
223 static int panic_event(struct notifier_block *this, unsigned long event,
224          void *ptr)
225 {
226         if (test_and_set_bit(MACHINE_PANICED, &machine_state))
227                 return NOTIFY_DONE;
228
229         /* Flash power LED */
230         omap_writeb(0x78, OMAP_LPG1_LCR);
231         omap_writeb(0x01, OMAP_LPG1_PMR);       /* Enable clock */
232
233         return NOTIFY_DONE;
234 }
235
236 static struct notifier_block panic_block = {
237         .notifier_call  = panic_event,
238 };
239
240 static int __init voiceblue_setup(void)
241 {
242         if (!machine_is_voiceblue())
243                 return -ENODEV;
244
245         /* Setup panic notifier */
246         atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
247
248         return 0;
249 }
250 postcore_initcall(voiceblue_setup);
251
252 static int wdt_gpio_state;
253
254 void voiceblue_wdt_enable(void)
255 {
256         gpio_direction_output(0, 0);
257         gpio_set_value(0, 1);
258         gpio_set_value(0, 0);
259         wdt_gpio_state = 0;
260 }
261
262 void voiceblue_wdt_disable(void)
263 {
264         gpio_set_value(0, 0);
265         gpio_set_value(0, 1);
266         gpio_set_value(0, 0);
267         gpio_direction_input(0);
268 }
269
270 void voiceblue_wdt_ping(void)
271 {
272         if (test_bit(MACHINE_REBOOT, &machine_state))
273                 return;
274
275         wdt_gpio_state = !wdt_gpio_state;
276         gpio_set_value(0, wdt_gpio_state);
277 }
278
279 void voiceblue_reset(void)
280 {
281         set_bit(MACHINE_REBOOT, &machine_state);
282         voiceblue_wdt_enable();
283         while (1) ;
284 }
285
286 EXPORT_SYMBOL(voiceblue_wdt_enable);
287 EXPORT_SYMBOL(voiceblue_wdt_disable);
288 EXPORT_SYMBOL(voiceblue_wdt_ping);
289
290 MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
291         /* Maintainer: Ladislav Michl <michl@2n.cz> */
292         .boot_params    = 0x10000100,
293         .map_io         = voiceblue_map_io,
294         .reserve        = omap_reserve,
295         .init_irq       = voiceblue_init_irq,
296         .init_machine   = voiceblue_init,
297         .timer          = &omap_timer,
298 MACHINE_END