[deliverable/linux.git] / arch / arm / mach-omap1 / board-voiceblue.c

/*
 * linux/arch/arm/mach-omap1/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/gpio.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/mtd/physmap.h>
#include <linux/notifier.h>
#include <linux/reboot.h>
#include <linux/serial_8250.h>
#include <linux/serial_reg.h>
#include <linux/smc91x.h>
#include <linux/export.h>
#include <linux/reboot.h>

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

#include <mach/board-voiceblue.h>
#include <mach/flash.h>
#include <mach/mux.h>
#include <mach/tc.h>

#include <mach/hardware.h>
#include <mach/usb.h>

#include "common.h"

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

static struct platform_device serial_device = {
	.name			= "serial8250",
	.id			= PLAT8250_DEV_PLATFORM1,
};

static int __init ext_uart_init(void)
{
	if (!machine_is_voiceblue())
		return -ENODEV;

	voiceblue_ports[0].irq = gpio_to_irq(12);
	voiceblue_ports[1].irq = gpio_to_irq(13);
	voiceblue_ports[2].irq = gpio_to_irq(14);
	voiceblue_ports[3].irq = gpio_to_irq(15);
	serial_device.dev.platform_data = voiceblue_ports;
	return platform_device_register(&serial_device);
}
arch_initcall(ext_uart_init);

static struct physmap_flash_data voiceblue_flash_data = {
	.width		= 2,
	.set_vpp	= omap1_set_vpp,
};

static struct resource voiceblue_flash_resource = {
	.start	= OMAP_CS0_PHYS,
	.end	= OMAP_CS0_PHYS + SZ_32M - 1,
	.flags	= IORESOURCE_MEM,
};

static struct platform_device voiceblue_flash_device = {
	.name		= "physmap-flash",
	.id		= 0,
	.dev		= {
		.platform_data	= &voiceblue_flash_data,
	},
	.num_resources	= 1,
	.resource	= &voiceblue_flash_resource,
};

static struct smc91x_platdata voiceblue_smc91x_info = {
	.flags	= SMC91X_USE_16BIT | SMC91X_NOWAIT,
	.leda	= RPC_LED_100_10,
	.ledb	= RPC_LED_TX_RX,
};

static struct resource voiceblue_smc91x_resources[] = {
	[0] = {
		.start	= OMAP_CS2_PHYS + 0x300,
		.end	= OMAP_CS2_PHYS + 0x300 + 16,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
	},
};

static struct platform_device voiceblue_smc91x_device = {
	.name		= "smc91x",
	.id		= 0,
	.dev	= {
		.platform_data	= &voiceblue_smc91x_info,
	},
	.num_resources	= ARRAY_SIZE(voiceblue_smc91x_resources),
	.resource	= voiceblue_smc91x_resources,
};

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

#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 */
	omap_writeb(0x78, OMAP_LPG1_LCR);
	omap_writeb(0x01, OMAP_LPG1_PMR);	/* Enable clock */

	return NOTIFY_DONE;
}

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

static int __init voiceblue_setup(void)
{
	if (!machine_is_voiceblue())
		return -ENODEV;

	/* Setup panic notifier */
	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);

	return 0;
}
postcore_initcall(voiceblue_setup);

static int wdt_gpio_state;

void voiceblue_wdt_enable(void)
{
	gpio_direction_output(0, 0);
	gpio_set_value(0, 1);
	gpio_set_value(0, 0);
	wdt_gpio_state = 0;
}

void voiceblue_wdt_disable(void)
{
	gpio_set_value(0, 0);
	gpio_set_value(0, 1);
	gpio_set_value(0, 0);
	gpio_direction_input(0);
}

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

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

static void voiceblue_restart(enum reboot_mode mode, const char *cmd)
{
	/*
	 * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
	 * "Global Software Reset Affects Traffic Controller Frequency".
	 */
	if (cpu_is_omap5912()) {
		omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4), DPLL_CTL);
		omap_writew(0x8, ARM_RSTCT1);
	}

	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);

static void __init voiceblue_init(void)
{
	/* mux pins for uarts */
	omap_cfg_reg(UART1_TX);
	omap_cfg_reg(UART1_RTS);
	omap_cfg_reg(UART2_TX);
	omap_cfg_reg(UART2_RTS);
	omap_cfg_reg(UART3_TX);
	omap_cfg_reg(UART3_RX);

	/* Watchdog */
	gpio_request(0, "Watchdog");
	/* smc91x reset */
	gpio_request(7, "SMC91x reset");
	gpio_direction_output(7, 1);
	udelay(2);	/* wait at least 100ns */
	gpio_set_value(7, 0);
	mdelay(50);	/* 50ms until PHY ready */
	/* smc91x interrupt pin */
	gpio_request(8, "SMC91x irq");
	/* 16C554 reset*/
	gpio_request(6, "16C554 reset");
	gpio_direction_output(6, 0);
	/* 16C554 interrupt pins */
	gpio_request(12, "16C554 irq");
	gpio_request(13, "16C554 irq");
	gpio_request(14, "16C554 irq");
	gpio_request(15, "16C554 irq");
	irq_set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING);
	irq_set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
	irq_set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING);
	irq_set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING);

	voiceblue_smc91x_resources[1].start = gpio_to_irq(8);
	voiceblue_smc91x_resources[1].end = gpio_to_irq(8);
	platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
	omap_serial_init();
	omap1_usb_init(&voiceblue_usb_config);
	omap_register_i2c_bus(1, 100, NULL, 0);

	/* There is a good chance board is going up, so enable power LED
	 * (it is connected through invertor) */
	omap_writeb(0x00, OMAP_LPG1_LCR);
	omap_writeb(0x00, OMAP_LPG1_PMR);	/* Disable clock */
}

MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
	/* Maintainer: Ladislav Michl <michl@2n.cz> */
	.atag_offset	= 0x100,
	.map_io		= omap15xx_map_io,
	.init_early     = omap1_init_early,
	.init_irq	= omap1_init_irq,
	.handle_irq	= omap1_handle_irq,
	.init_machine	= voiceblue_init,
	.init_late	= omap1_init_late,
	.init_time	= omap1_timer_init,
	.restart	= voiceblue_restart,
MACHINE_END
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>
2f8163ba	16	#include <linux/gpio.h>
d052d1be	17	#include <linux/platform_device.h>
1da177e4	18	#include <linux/interrupt.h>
652bcd8f	19	#include <linux/irq.h>
1da177e4 LT	20	#include <linux/init.h>
1da177e4 LT	21	#include <linux/kernel.h>
561b036a	22	#include <linux/mtd/physmap.h>
1da177e4 LT	23	#include <linux/notifier.h>
	24	#include <linux/reboot.h>
	25	#include <linux/serial_8250.h>
	26	#include <linux/serial_reg.h>
3bc48014	27	#include <linux/smc91x.h>
dc28094b	28	#include <linux/export.h>
7b6d864b	29	#include <linux/reboot.h>
1da177e4	30
1da177e4 LT	31	#include <asm/mach-types.h>
	32	#include <asm/mach/arch.h>
	33	#include <asm/mach/map.h>
	34
c510da1c	35	#include <mach/board-voiceblue.h>
578fad4d	36	#include <mach/flash.h>
70c494c3	37	#include <mach/mux.h>
54b693d4	38	#include <mach/tc.h>
1da177e4	39
2e3ee9f4	40	#include <mach/hardware.h>
b924b204	41	#include <mach/usb.h>
2e3ee9f4 TL	42
	43	#include "common.h"
	44
1da177e4 LT	45	static struct plat_serial8250_port voiceblue_ports[] = {
	46	{
	47	.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x40000),
1da177e4 LT	48	.flags = UPF_BOOT_AUTOCONF \| UPF_IOREMAP,
	49	.iotype = UPIO_MEM,
	50	.regshift = 1,
	51	.uartclk = 3686400,
	52	},
	53	{
	54	.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000),
1da177e4 LT	55	.flags = UPF_BOOT_AUTOCONF \| UPF_IOREMAP,
	56	.iotype = UPIO_MEM,
	57	.regshift = 1,
	58	.uartclk = 3686400,
	59	},
	60	{
	61	.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000),
1da177e4 LT	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),
1da177e4 LT	69	.flags = UPF_BOOT_AUTOCONF \| UPF_IOREMAP,
	70	.iotype = UPIO_MEM,
	71	.regshift = 1,
	72	.uartclk = 3686400,
	73	},
	74	{ },
	75	};
	76
	77	static struct platform_device serial_device = {
	78	.name = "serial8250",
6df29deb	79	.id = PLAT8250_DEV_PLATFORM1,
1da177e4 LT	80	};
	81
	82	static int __init ext_uart_init(void)
	83	{
7f9187c2 TL	84	if (!machine_is_voiceblue())
	85	return -ENODEV;
	86
46a0a540 TKD	87	voiceblue_ports[0].irq = gpio_to_irq(12);
	88	voiceblue_ports[1].irq = gpio_to_irq(13);
	89	voiceblue_ports[2].irq = gpio_to_irq(14);
	90	voiceblue_ports[3].irq = gpio_to_irq(15);
	91	serial_device.dev.platform_data = voiceblue_ports;
1da177e4 LT	92	return platform_device_register(&serial_device);
	93	}
	94	arch_initcall(ext_uart_init);
	95
561b036a	96	static struct physmap_flash_data voiceblue_flash_data = {
7c38cf02	97	.width = 2,
561b036a	98	.set_vpp = omap1_set_vpp,
7c38cf02 TL	99	};
	100
	101	static struct resource voiceblue_flash_resource = {
	102	.start = OMAP_CS0_PHYS,
	103	.end = OMAP_CS0_PHYS + SZ_32M - 1,
	104	.flags = IORESOURCE_MEM,
	105	};
	106
	107	static struct platform_device voiceblue_flash_device = {
561b036a	108	.name = "physmap-flash",
7c38cf02 TL	109	.id = 0,
	110	.dev = {
	111	.platform_data = &voiceblue_flash_data,
	112	},
	113	.num_resources = 1,
	114	.resource = &voiceblue_flash_resource,
	115	};
	116
3bc48014 LM	117	static struct smc91x_platdata voiceblue_smc91x_info = {
	118	.flags = SMC91X_USE_16BIT \| SMC91X_NOWAIT,
	119	.leda = RPC_LED_100_10,
	120	.ledb = RPC_LED_TX_RX,
	121	};
	122
1da177e4 LT	123	static struct resource voiceblue_smc91x_resources[] = {
	124	[0] = {
	125	.start = OMAP_CS2_PHYS + 0x300,
	126	.end = OMAP_CS2_PHYS + 0x300 + 16,
	127	.flags = IORESOURCE_MEM,
	128	},
	129	[1] = {
e7b3dc7e	130	.flags = IORESOURCE_IRQ \| IORESOURCE_IRQ_HIGHEDGE,
1da177e4 LT	131	},
	132	};
	133
	134	static struct platform_device voiceblue_smc91x_device = {
	135	.name = "smc91x",
	136	.id = 0,
3bc48014 LM	137	.dev = {
	138	.platform_data = &voiceblue_smc91x_info,
	139	},
1da177e4 LT	140	.num_resources = ARRAY_SIZE(voiceblue_smc91x_resources),
	141	.resource = voiceblue_smc91x_resources,
	142	};
	143
	144	static struct platform_device *voiceblue_devices[] __initdata = {
7c38cf02	145	&voiceblue_flash_device,
1da177e4 LT	146	&voiceblue_smc91x_device,
	147	};
	148
	149	static struct omap_usb_config voiceblue_usb_config __initdata = {
	150	.hmc_mode = 3,
	151	.register_host = 1,
	152	.register_dev = 1,
	153	.pins[0] = 2,
	154	.pins[1] = 6,
	155	.pins[2] = 6,
	156	};
	157
1da177e4 LT	158	#define MACHINE_PANICED 1
	159	#define MACHINE_REBOOTING 2
	160	#define MACHINE_REBOOT 4
	161	static unsigned long machine_state;
	162
	163	static int panic_event(struct notifier_block *this, unsigned long event,
	164	void *ptr)
	165	{
	166	if (test_and_set_bit(MACHINE_PANICED, &machine_state))
	167	return NOTIFY_DONE;
	168
7c38cf02	169	/* Flash power LED */
1da177e4	170	omap_writeb(0x78, OMAP_LPG1_LCR);
7c38cf02	171	omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */
1da177e4 LT	172
	173	return NOTIFY_DONE;
	174	}
	175
	176	static struct notifier_block panic_block = {
	177	.notifier_call = panic_event,
	178	};
	179
7c38cf02	180	static int __init voiceblue_setup(void)
1da177e4	181	{
7f9187c2 TL	182	if (!machine_is_voiceblue())
	183	return -ENODEV;
	184
1da177e4	185	/* Setup panic notifier */
a524626b	186	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
1da177e4 LT	187
	188	return 0;
	189	}
7c38cf02	190	postcore_initcall(voiceblue_setup);
1da177e4 LT	191
	192	static int wdt_gpio_state;
	193
	194	void voiceblue_wdt_enable(void)
	195	{
e918edf7	196	gpio_direction_output(0, 0);
0b84b5ca DB	197	gpio_set_value(0, 1);
0b84b5ca DB	198	gpio_set_value(0, 0);
1da177e4 LT	199	wdt_gpio_state = 0;
	200	}
	201
	202	void voiceblue_wdt_disable(void)
	203	{
0b84b5ca DB	204	gpio_set_value(0, 0);
	205	gpio_set_value(0, 1);
	206	gpio_set_value(0, 0);
40e3925b	207	gpio_direction_input(0);
1da177e4 LT	208	}
	209
	210	void voiceblue_wdt_ping(void)
	211	{
	212	if (test_bit(MACHINE_REBOOT, &machine_state))
	213	return;
	214
	215	wdt_gpio_state = !wdt_gpio_state;
0b84b5ca	216	gpio_set_value(0, wdt_gpio_state);
1da177e4 LT	217	}
1da177e4 LT	218
7b6d864b	219	static void voiceblue_restart(enum reboot_mode mode, const char *cmd)
1da177e4	220	{
ee54dba9 RKAL	221	/*
	222	* Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
	223	* "Global Software Reset Affects Traffic Controller Frequency".
	224	*/
	225	if (cpu_is_omap5912()) {
	226	omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4), DPLL_CTL);
	227	omap_writew(0x8, ARM_RSTCT1);
	228	}
	229
1da177e4 LT	230	set_bit(MACHINE_REBOOT, &machine_state);
	231	voiceblue_wdt_enable();
	232	while (1) ;
	233	}
	234
	235	EXPORT_SYMBOL(voiceblue_wdt_enable);
	236	EXPORT_SYMBOL(voiceblue_wdt_disable);
	237	EXPORT_SYMBOL(voiceblue_wdt_ping);
	238
ee54dba9 RKAL	239	static void __init voiceblue_init(void)
	240	{
	241	/* mux pins for uarts */
	242	omap_cfg_reg(UART1_TX);
	243	omap_cfg_reg(UART1_RTS);
	244	omap_cfg_reg(UART2_TX);
	245	omap_cfg_reg(UART2_RTS);
	246	omap_cfg_reg(UART3_TX);
	247	omap_cfg_reg(UART3_RX);
	248
	249	/* Watchdog */
	250	gpio_request(0, "Watchdog");
	251	/* smc91x reset */
	252	gpio_request(7, "SMC91x reset");
	253	gpio_direction_output(7, 1);
	254	udelay(2); /* wait at least 100ns */
	255	gpio_set_value(7, 0);
	256	mdelay(50); /* 50ms until PHY ready */
	257	/* smc91x interrupt pin */
	258	gpio_request(8, "SMC91x irq");
	259	/* 16C554 reset*/
	260	gpio_request(6, "16C554 reset");
	261	gpio_direction_output(6, 0);
	262	/* 16C554 interrupt pins */
	263	gpio_request(12, "16C554 irq");
	264	gpio_request(13, "16C554 irq");
	265	gpio_request(14, "16C554 irq");
	266	gpio_request(15, "16C554 irq");
6845664a TG	267	irq_set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING);
	268	irq_set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
	269	irq_set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING);
	270	irq_set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING);
ee54dba9	271
46a0a540 TKD	272	voiceblue_smc91x_resources[1].start = gpio_to_irq(8);
46a0a540 TKD	273	voiceblue_smc91x_resources[1].end = gpio_to_irq(8);
ee54dba9	274	platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
ee54dba9 RKAL	275	omap_serial_init();
	276	omap1_usb_init(&voiceblue_usb_config);
	277	omap_register_i2c_bus(1, 100, NULL, 0);
	278
	279	/* There is a good chance board is going up, so enable power LED
	280	* (it is connected through invertor) */
	281	omap_writeb(0x00, OMAP_LPG1_LCR);
	282	omap_writeb(0x00, OMAP_LPG1_PMR); /* Disable clock */
ee54dba9 RKAL	283	}
ee54dba9 RKAL	284
1da177e4	285	MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
e9dea0c6	286	/* Maintainer: Ladislav Michl <michl@2n.cz> */
246e389d	287	.atag_offset = 0x100,
7b88e62f TL	288	.map_io = omap15xx_map_io,
7b88e62f TL	289	.init_early = omap1_init_early,
7b88e62f	290	.init_irq = omap1_init_irq,
b694331c	291	.handle_irq = omap1_handle_irq,
e9dea0c6	292	.init_machine = voiceblue_init,
82c3bd03	293	.init_late = omap1_init_late,
6bb27d73	294	.init_time = omap1_timer_init,
baa95883	295	.restart = voiceblue_restart,
1da177e4	296	MACHINE_END