[deliverable/linux.git] / arch / arm / mach-omap / board-voiceblue.c

/*
 * linux/arch/arm/mach-omap/board-voiceblue.c
 *
 * Modified from board-generic.c
 *
 * Copyright (C) 2004 2N Telekomunikace, Ladislav Michl <michl@2n.cz>
 *
 * Code for OMAP5910 based VoiceBlue board (VoIP to GSM gateway).
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/delay.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/notifier.h>
#include <linux/reboot.h>
#include <linux/serial_8250.h>
#include <linux/serial_reg.h>

#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <asm/arch/gpio.h>
#include <asm/arch/tc.h>
#include <asm/arch/mux.h>
#include <asm/arch/usb.h>

#include "common.h"

extern void omap_init_time(void);
extern int omap_gpio_init(void);

static struct plat_serial8250_port voiceblue_ports[] = {
	{
		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x40000),
		.irq		= OMAP_GPIO_IRQ(12),
		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
		.iotype		= UPIO_MEM,
		.regshift	= 1,
		.uartclk	= 3686400,
	},
	{
		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x50000),
		.irq		= OMAP_GPIO_IRQ(13),
		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
		.iotype		= UPIO_MEM,
		.regshift	= 1,
		.uartclk	= 3686400,
	},
	{
		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x60000),
		.irq		= OMAP_GPIO_IRQ(14),
		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
		.iotype		= UPIO_MEM,
		.regshift	= 1,
		.uartclk	= 3686400,
	},
	{
		.mapbase	= (unsigned long)(OMAP_CS1_PHYS + 0x70000),
		.irq		= OMAP_GPIO_IRQ(15),
		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
		.iotype		= UPIO_MEM,
		.regshift	= 1,
		.uartclk	= 3686400,
	},
	{ },
};

static struct platform_device serial_device = {
	.name			= "serial8250",
	.id			= 1,
	.dev			= {
		.platform_data	= voiceblue_ports,
	},
};

static int __init ext_uart_init(void)
{
	return platform_device_register(&serial_device);
}
arch_initcall(ext_uart_init);

static struct resource voiceblue_smc91x_resources[] = {
	[0] = {
		.start	= OMAP_CS2_PHYS + 0x300,
		.end	= OMAP_CS2_PHYS + 0x300 + 16,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= OMAP_GPIO_IRQ(8),
		.end	= OMAP_GPIO_IRQ(8),
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device voiceblue_smc91x_device = {
	.name		= "smc91x",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(voiceblue_smc91x_resources),
	.resource	= voiceblue_smc91x_resources,
};

static struct platform_device *voiceblue_devices[] __initdata = {
	&voiceblue_smc91x_device,
};

static struct omap_usb_config voiceblue_usb_config __initdata = {
	.hmc_mode	= 3,
	.register_host	= 1,
	.register_dev   = 1,
	.pins[0]	= 2,
	.pins[1]	= 6,
	.pins[2]	= 6,
};

static struct omap_board_config_kernel voiceblue_config[] = {
	{ OMAP_TAG_USB, &voiceblue_usb_config },
};

static void __init voiceblue_init_irq(void)
{
	omap_init_irq();
	omap_gpio_init();
}

static void __init voiceblue_init(void)
{
	/* There is a good chance board is going up, so enable Power LED
	 * (it is connected through invertor) */
	omap_writeb(0x00, OMAP_LPG1_LCR);
	/* Watchdog */
	omap_request_gpio(0);
	/* smc91x reset */
	omap_request_gpio(7);
	omap_set_gpio_direction(7, 0);
	omap_set_gpio_dataout(7, 1);
	udelay(2);	/* wait at least 100ns */
	omap_set_gpio_dataout(7, 0);
	mdelay(50);	/* 50ms until PHY ready */
	/* smc91x interrupt pin */
	omap_request_gpio(8);
	omap_set_gpio_edge_ctrl(8, OMAP_GPIO_RISING_EDGE);
	/* 16C554 reset*/
	omap_request_gpio(6);
	omap_set_gpio_direction(6, 0);
	omap_set_gpio_dataout(6, 0);
	/* 16C554 interrupt pins */
	omap_request_gpio(12);
	omap_request_gpio(13);
	omap_request_gpio(14);
	omap_request_gpio(15);
	omap_set_gpio_edge_ctrl(12, OMAP_GPIO_RISING_EDGE);
	omap_set_gpio_edge_ctrl(13, OMAP_GPIO_RISING_EDGE);
	omap_set_gpio_edge_ctrl(14, OMAP_GPIO_RISING_EDGE);
	omap_set_gpio_edge_ctrl(15, OMAP_GPIO_RISING_EDGE);

	platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
	omap_board_config = voiceblue_config;
	omap_board_config_size = ARRAY_SIZE(voiceblue_config);
}

static int __initdata omap_serial_ports[OMAP_MAX_NR_PORTS] = {1, 1, 1};

static void __init voiceblue_map_io(void)
{
	omap_map_io();
	omap_serial_init(omap_serial_ports);
}

#define MACHINE_PANICED		1
#define MACHINE_REBOOTING	2
#define MACHINE_REBOOT		4
static unsigned long machine_state;

static int panic_event(struct notifier_block *this, unsigned long event,
	 void *ptr)
{
	if (test_and_set_bit(MACHINE_PANICED, &machine_state))
		return NOTIFY_DONE;

	/* Flash Power LED
	 * (TODO: Enable clock right way (enabled in bootloader already)) */
	omap_writeb(0x78, OMAP_LPG1_LCR);

	return NOTIFY_DONE;
}

static struct notifier_block panic_block = {
	.notifier_call	= panic_event,
};

static int __init setup_notifier(void)
{
	/* Setup panic notifier */
	notifier_chain_register(&panic_notifier_list, &panic_block);

	return 0;
}

postcore_initcall(setup_notifier);

static int wdt_gpio_state;

void voiceblue_wdt_enable(void)
{
	omap_set_gpio_direction(0, 0);
	omap_set_gpio_dataout(0, 0);
	omap_set_gpio_dataout(0, 1);
	omap_set_gpio_dataout(0, 0);
	wdt_gpio_state = 0;
}

void voiceblue_wdt_disable(void)
{
	omap_set_gpio_dataout(0, 0);
	omap_set_gpio_dataout(0, 1);
	omap_set_gpio_dataout(0, 0);
	omap_set_gpio_direction(0, 1);
}

void voiceblue_wdt_ping(void)
{
	if (test_bit(MACHINE_REBOOT, &machine_state))
		return;

	wdt_gpio_state = !wdt_gpio_state;
	omap_set_gpio_dataout(0, wdt_gpio_state);
}

void voiceblue_reset(void)
{
	set_bit(MACHINE_REBOOT, &machine_state);
	voiceblue_wdt_enable();
	while (1) ;
}

EXPORT_SYMBOL(voiceblue_wdt_enable);
EXPORT_SYMBOL(voiceblue_wdt_disable);
EXPORT_SYMBOL(voiceblue_wdt_ping);

MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
	/* Maintainer: Ladislav Michl <michl@2n.cz> */
	.phys_ram	= 0x10000000,
	.phys_io	= 0xfff00000,
	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
	.boot_params	= 0x10000100,
	.map_io		= voiceblue_map_io,
	.init_irq	= voiceblue_init_irq,
	.init_machine	= voiceblue_init,
	.timer		= &omap_timer,
MACHINE_END
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/arch/arm/mach-omap/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/map.h>
	29
	30	#include <asm/arch/gpio.h>
	31	#include <asm/arch/tc.h>
	32	#include <asm/arch/mux.h>
	33	#include <asm/arch/usb.h>
	34
	35	#include "common.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 resource voiceblue_smc91x_resources[] = {
91	[0] = {
92	.start = OMAP_CS2_PHYS + 0x300,
93	.end = OMAP_CS2_PHYS + 0x300 + 16,
94	.flags = IORESOURCE_MEM,
95	},
96	[1] = {
97	.start = OMAP_GPIO_IRQ(8),
98	.end = OMAP_GPIO_IRQ(8),
99	.flags = IORESOURCE_IRQ,
100	},
101	};
102
103	static struct platform_device voiceblue_smc91x_device = {
104	.name = "smc91x",
105	.id = 0,
106	.num_resources = ARRAY_SIZE(voiceblue_smc91x_resources),
107	.resource = voiceblue_smc91x_resources,
108	};
109
110	static struct platform_device *voiceblue_devices[] __initdata = {
111	&voiceblue_smc91x_device,
112	};
113
114	static struct omap_usb_config voiceblue_usb_config __initdata = {
115	.hmc_mode = 3,
116	.register_host = 1,
117	.register_dev = 1,
118	.pins[0] = 2,
119	.pins[1] = 6,
120	.pins[2] = 6,
121	};
122
123	static struct omap_board_config_kernel voiceblue_config[] = {
124	{ OMAP_TAG_USB, &voiceblue_usb_config },
125	};
126
127	static void __init voiceblue_init_irq(void)
128	{
129	omap_init_irq();
130	omap_gpio_init();
131	}
132
133	static void __init voiceblue_init(void)
134	{
135	/* There is a good chance board is going up, so enable Power LED
136	* (it is connected through invertor) */
137	omap_writeb(0x00, OMAP_LPG1_LCR);
138	/* Watchdog */
139	omap_request_gpio(0);
140	/* smc91x reset */
141	omap_request_gpio(7);
142	omap_set_gpio_direction(7, 0);
143	omap_set_gpio_dataout(7, 1);
144	udelay(2); /* wait at least 100ns */
145	omap_set_gpio_dataout(7, 0);
146	mdelay(50); /* 50ms until PHY ready */
147	/* smc91x interrupt pin */
148	omap_request_gpio(8);
149	omap_set_gpio_edge_ctrl(8, OMAP_GPIO_RISING_EDGE);
150	/* 16C554 reset*/
151	omap_request_gpio(6);
152	omap_set_gpio_direction(6, 0);
153	omap_set_gpio_dataout(6, 0);
154	/* 16C554 interrupt pins */
155	omap_request_gpio(12);
156	omap_request_gpio(13);
157	omap_request_gpio(14);
158	omap_request_gpio(15);
159	omap_set_gpio_edge_ctrl(12, OMAP_GPIO_RISING_EDGE);
160	omap_set_gpio_edge_ctrl(13, OMAP_GPIO_RISING_EDGE);
161	omap_set_gpio_edge_ctrl(14, OMAP_GPIO_RISING_EDGE);
162	omap_set_gpio_edge_ctrl(15, OMAP_GPIO_RISING_EDGE);
163
164	platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
165	omap_board_config = voiceblue_config;
166	omap_board_config_size = ARRAY_SIZE(voiceblue_config);
167	}
168
169	static int __initdata omap_serial_ports[OMAP_MAX_NR_PORTS] = {1, 1, 1};
170
171	static void __init voiceblue_map_io(void)
172	{
173	omap_map_io();
174	omap_serial_init(omap_serial_ports);
175	}
176
177	#define MACHINE_PANICED 1
178	#define MACHINE_REBOOTING 2
179	#define MACHINE_REBOOT 4
180	static unsigned long machine_state;
181
182	static int panic_event(struct notifier_block *this, unsigned long event,
183	void *ptr)
184	{
185	if (test_and_set_bit(MACHINE_PANICED, &machine_state))
186	return NOTIFY_DONE;
187
188	/* Flash Power LED
189	* (TODO: Enable clock right way (enabled in bootloader already)) */
190	omap_writeb(0x78, OMAP_LPG1_LCR);
191
192	return NOTIFY_DONE;
193	}
194
195	static struct notifier_block panic_block = {
196	.notifier_call = panic_event,
197	};
198
199	static int __init setup_notifier(void)
200	{
201	/* Setup panic notifier */
202	notifier_chain_register(&panic_notifier_list, &panic_block);
203
204	return 0;
205	}
206
207	postcore_initcall(setup_notifier);
208
209	static int wdt_gpio_state;
210
211	void voiceblue_wdt_enable(void)
212	{
213	omap_set_gpio_direction(0, 0);
214	omap_set_gpio_dataout(0, 0);
215	omap_set_gpio_dataout(0, 1);
216	omap_set_gpio_dataout(0, 0);
217	wdt_gpio_state = 0;
218	}
219
220	void voiceblue_wdt_disable(void)
221	{
222	omap_set_gpio_dataout(0, 0);
223	omap_set_gpio_dataout(0, 1);
224	omap_set_gpio_dataout(0, 0);
225	omap_set_gpio_direction(0, 1);
226	}
227
228	void voiceblue_wdt_ping(void)
229	{
230	if (test_bit(MACHINE_REBOOT, &machine_state))
231	return;
232
233	wdt_gpio_state = !wdt_gpio_state;
234	omap_set_gpio_dataout(0, wdt_gpio_state);
235	}
236
237	void voiceblue_reset(void)
238	{
239	set_bit(MACHINE_REBOOT, &machine_state);
240	voiceblue_wdt_enable();
241	while (1) ;
242	}
243
244	EXPORT_SYMBOL(voiceblue_wdt_enable);
245	EXPORT_SYMBOL(voiceblue_wdt_disable);
246	EXPORT_SYMBOL(voiceblue_wdt_ping);
247
248	MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
e9dea0c6 RK	249	/* Maintainer: Ladislav Michl <michl@2n.cz> */
	250	.phys_ram = 0x10000000,
	251	.phys_io = 0xfff00000,
	252	.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
	253	.boot_params = 0x10000100,
	254	.map_io = voiceblue_map_io,
	255	.init_irq = voiceblue_init_irq,
	256	.init_machine = voiceblue_init,
	257	.timer = &omap_timer,
1da177e4	258	MACHINE_END