[linux-2.6-block.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/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 <mach/hardware.h>
#include <mach/system.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <plat/board-voiceblue.h>
#include <plat/common.h>
#include <mach/gpio.h>
#include <plat/flash.h>
#include <plat/mux.h>
#include <plat/tc.h>
#include <plat/usb.h>

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			= PLAT8250_DEV_PLATFORM1,
	.dev			= {
		.platform_data	= voiceblue_ports,
	},
};

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

	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] = {
		.start	= OMAP_GPIO_IRQ(8),
		.end	= OMAP_GPIO_IRQ(8),
		.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,
};

static struct omap_board_config_kernel voiceblue_config[] = {
};

static void __init voiceblue_init_irq(void)
{
	omap1_init_common_hw();
	omap1_init_irq();
}

static void __init voiceblue_map_io(void)
{
	omap1_map_common_io();
}

#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_reset(char 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);

	platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
	omap_board_config = voiceblue_config;
	omap_board_config_size = ARRAY_SIZE(voiceblue_config);
	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 */

	arch_reset = voiceblue_reset;
}

MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
	/* Maintainer: Ladislav Michl <michl@2n.cz> */
	.boot_params	= 0x10000100,
	.map_io		= voiceblue_map_io,
	.reserve	= omap_reserve,
	.init_irq	= voiceblue_init_irq,
	.init_machine	= voiceblue_init,
	.timer		= &omap1_timer,
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>
d052d1be	16	#include <linux/platform_device.h>
1da177e4	17	#include <linux/interrupt.h>
652bcd8f	18	#include <linux/irq.h>
1da177e4 LT	19	#include <linux/init.h>
1da177e4 LT	20	#include <linux/kernel.h>
561b036a	21	#include <linux/mtd/physmap.h>
1da177e4 LT	22	#include <linux/notifier.h>
	23	#include <linux/reboot.h>
	24	#include <linux/serial_8250.h>
	25	#include <linux/serial_reg.h>
3bc48014	26	#include <linux/smc91x.h>
1da177e4	27
a09e64fb	28	#include <mach/hardware.h>
ee54dba9	29	#include <mach/system.h>
1da177e4 LT	30	#include <asm/mach-types.h>
	31	#include <asm/mach/arch.h>
	32	#include <asm/mach/map.h>
	33
232bc651	34	#include <plat/board-voiceblue.h>
ce491cf8	35	#include <plat/common.h>
a09e64fb	36	#include <mach/gpio.h>
561b036a	37	#include <plat/flash.h>
ce491cf8 TL	38	#include <plat/mux.h>
	39	#include <plat/tc.h>
	40	#include <plat/usb.h>
1da177e4	41
1da177e4 LT	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",
6df29deb	80	.id = PLAT8250_DEV_PLATFORM1,
1da177e4 LT	81	.dev = {
	82	.platform_data = voiceblue_ports,
	83	},
	84	};
	85
	86	static int __init ext_uart_init(void)
	87	{
7f9187c2 TL	88	if (!machine_is_voiceblue())
	89	return -ENODEV;
	90
1da177e4 LT	91	return platform_device_register(&serial_device);
	92	}
	93	arch_initcall(ext_uart_init);
	94
561b036a	95	static struct physmap_flash_data voiceblue_flash_data = {
7c38cf02	96	.width = 2,
561b036a	97	.set_vpp = omap1_set_vpp,
7c38cf02 TL	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 = {
561b036a	107	.name = "physmap-flash",
7c38cf02 TL	108	.id = 0,
	109	.dev = {
	110	.platform_data = &voiceblue_flash_data,
	111	},
	112	.num_resources = 1,
	113	.resource = &voiceblue_flash_resource,
	114	};
	115
3bc48014 LM	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
1da177e4 LT	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),
e7b3dc7e	131	.flags = IORESOURCE_IRQ \| IORESOURCE_IRQ_HIGHEDGE,
1da177e4 LT	132	},
	133	};
	134
	135	static struct platform_device voiceblue_smc91x_device = {
	136	.name = "smc91x",
	137	.id = 0,
3bc48014 LM	138	.dev = {
	139	.platform_data = &voiceblue_smc91x_info,
	140	},
1da177e4 LT	141	.num_resources = ARRAY_SIZE(voiceblue_smc91x_resources),
	142	.resource = voiceblue_smc91x_resources,
	143	};
	144
	145	static struct platform_device *voiceblue_devices[] __initdata = {
7c38cf02	146	&voiceblue_flash_device,
1da177e4 LT	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[] = {
1da177e4 LT	160	};
	161
	162	static void __init voiceblue_init_irq(void)
	163	{
87bd63f6	164	omap1_init_common_hw();
741e3a89	165	omap1_init_irq();
1da177e4 LT	166	}
1da177e4 LT	167
1da177e4 LT	168	static void __init voiceblue_map_io(void)
1da177e4 LT	169	{
87bd63f6	170	omap1_map_common_io();
1da177e4 LT	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
7c38cf02	184	/* Flash power LED */
1da177e4	185	omap_writeb(0x78, OMAP_LPG1_LCR);
7c38cf02	186	omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */
1da177e4 LT	187
	188	return NOTIFY_DONE;
	189	}
	190
	191	static struct notifier_block panic_block = {
	192	.notifier_call = panic_event,
	193	};
	194
7c38cf02	195	static int __init voiceblue_setup(void)
1da177e4	196	{
7f9187c2 TL	197	if (!machine_is_voiceblue())
	198	return -ENODEV;
	199
1da177e4	200	/* Setup panic notifier */
a524626b	201	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
1da177e4 LT	202
	203	return 0;
	204	}
7c38cf02	205	postcore_initcall(voiceblue_setup);
1da177e4 LT	206
	207	static int wdt_gpio_state;
	208
	209	void voiceblue_wdt_enable(void)
	210	{
e918edf7	211	gpio_direction_output(0, 0);
0b84b5ca DB	212	gpio_set_value(0, 1);
0b84b5ca DB	213	gpio_set_value(0, 0);
1da177e4 LT	214	wdt_gpio_state = 0;
	215	}
	216
	217	void voiceblue_wdt_disable(void)
	218	{
0b84b5ca DB	219	gpio_set_value(0, 0);
	220	gpio_set_value(0, 1);
	221	gpio_set_value(0, 0);
40e3925b	222	gpio_direction_input(0);
1da177e4 LT	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;
0b84b5ca	231	gpio_set_value(0, wdt_gpio_state);
1da177e4 LT	232	}
1da177e4 LT	233
ee54dba9	234	static void voiceblue_reset(char mode, const char *cmd)
1da177e4	235	{
ee54dba9 RKAL	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
1da177e4 LT	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
ee54dba9 RKAL	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");
6845664a TG	282	irq_set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING);
	283	irq_set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
	284	irq_set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING);
	285	irq_set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING);
ee54dba9 RKAL	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
1da177e4	302	MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
e9dea0c6	303	/* Maintainer: Ladislav Michl <michl@2n.cz> */
e9dea0c6 RK	304	.boot_params = 0x10000100,
e9dea0c6 RK	305	.map_io = voiceblue_map_io,
71ee7dad	306	.reserve = omap_reserve,
e9dea0c6 RK	307	.init_irq = voiceblue_init_irq,
e9dea0c6 RK	308	.init_machine = voiceblue_init,
e74984e4	309	.timer = &omap1_timer,
1da177e4	310	MACHINE_END