[mirror_ubuntu-focal-kernel.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/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 <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>

#include <mach/common.h>
#include <mach/gpio.h>
#include <mach/mux.h>
#include <mach/tc.h>
#include <mach/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)
{
	return platform_device_register(&serial_device);
}
arch_initcall(ext_uart_init);

static struct flash_platform_data voiceblue_flash_data = {
	.map_name	= "cfi_probe",
	.width		= 2,
};

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		= "omapflash",
	.id		= 0,
	.dev		= {
		.platform_data	= &voiceblue_flash_data,
	},
	.num_resources	= 1,
	.resource	= &voiceblue_flash_resource,
};

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,
	.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_mmc_config voiceblue_mmc_config __initdata = {
	.mmc[0] = {
		.enabled	= 1,
		.power_pin	= 2,
		.switch_pin	= -1,
	},
};

static struct omap_uart_config voiceblue_uart_config __initdata = {
	.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
};

static struct omap_board_config_kernel voiceblue_config[] = {
	{ OMAP_TAG_USB,  &voiceblue_usb_config },
	{ OMAP_TAG_MMC,  &voiceblue_mmc_config },
	{ OMAP_TAG_UART, &voiceblue_uart_config },
};

static void __init voiceblue_init_irq(void)
{
	omap1_init_common_hw();
	omap_init_irq();
	omap_gpio_init();
}

static void __init voiceblue_init(void)
{
	/* 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);
	/* 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);
	set_irq_type(OMAP_GPIO_IRQ(12), IRQ_TYPE_EDGE_RISING);
	set_irq_type(OMAP_GPIO_IRQ(13), IRQ_TYPE_EDGE_RISING);
	set_irq_type(OMAP_GPIO_IRQ(14), IRQ_TYPE_EDGE_RISING);
	set_irq_type(OMAP_GPIO_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();
	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 */
}

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)
{
	/* 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)
{
	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_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	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 LT	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
a09e64fb	25	#include <mach/hardware.h>
1da177e4 LT	26	#include <asm/mach-types.h>
1da177e4 LT	27	#include <asm/mach/arch.h>
7c38cf02	28	#include <asm/mach/flash.h>
1da177e4 LT	29	#include <asm/mach/map.h>
1da177e4 LT	30
a09e64fb RK	31	#include <mach/common.h>
	32	#include <mach/gpio.h>
	33	#include <mach/mux.h>
	34	#include <mach/tc.h>
	35	#include <mach/usb.h>
1da177e4	36
1da177e4 LT	37	static struct plat_serial8250_port voiceblue_ports[] = {
	38	{
	39	.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x40000),
	40	.irq = OMAP_GPIO_IRQ(12),
	41	.flags = UPF_BOOT_AUTOCONF \| UPF_IOREMAP,
	42	.iotype = UPIO_MEM,
	43	.regshift = 1,
	44	.uartclk = 3686400,
	45	},
	46	{
	47	.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000),
	48	.irq = OMAP_GPIO_IRQ(13),
	49	.flags = UPF_BOOT_AUTOCONF \| UPF_IOREMAP,
	50	.iotype = UPIO_MEM,
	51	.regshift = 1,
	52	.uartclk = 3686400,
	53	},
	54	{
	55	.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000),
	56	.irq = OMAP_GPIO_IRQ(14),
	57	.flags = UPF_BOOT_AUTOCONF \| UPF_IOREMAP,
	58	.iotype = UPIO_MEM,
	59	.regshift = 1,
	60	.uartclk = 3686400,
	61	},
	62	{
	63	.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x70000),
	64	.irq = OMAP_GPIO_IRQ(15),
	65	.flags = UPF_BOOT_AUTOCONF \| UPF_IOREMAP,
	66	.iotype = UPIO_MEM,
	67	.regshift = 1,
	68	.uartclk = 3686400,
	69	},
	70	{ },
	71	};
	72
	73	static struct platform_device serial_device = {
	74	.name = "serial8250",
6df29deb	75	.id = PLAT8250_DEV_PLATFORM1,
1da177e4 LT	76	.dev = {
	77	.platform_data = voiceblue_ports,
	78	},
	79	};
	80
	81	static int __init ext_uart_init(void)
	82	{
	83	return platform_device_register(&serial_device);
	84	}
	85	arch_initcall(ext_uart_init);
	86
7c38cf02 TL	87	static struct flash_platform_data voiceblue_flash_data = {
	88	.map_name = "cfi_probe",
	89	.width = 2,
	90	};
	91
	92	static struct resource voiceblue_flash_resource = {
	93	.start = OMAP_CS0_PHYS,
	94	.end = OMAP_CS0_PHYS + SZ_32M - 1,
	95	.flags = IORESOURCE_MEM,
	96	};
	97
	98	static struct platform_device voiceblue_flash_device = {
	99	.name = "omapflash",
	100	.id = 0,
	101	.dev = {
	102	.platform_data = &voiceblue_flash_data,
	103	},
	104	.num_resources = 1,
	105	.resource = &voiceblue_flash_resource,
	106	};
	107
1da177e4 LT	108	static struct resource voiceblue_smc91x_resources[] = {
	109	[0] = {
	110	.start = OMAP_CS2_PHYS + 0x300,
	111	.end = OMAP_CS2_PHYS + 0x300 + 16,
	112	.flags = IORESOURCE_MEM,
	113	},
	114	[1] = {
	115	.start = OMAP_GPIO_IRQ(8),
	116	.end = OMAP_GPIO_IRQ(8),
e7b3dc7e	117	.flags = IORESOURCE_IRQ \| IORESOURCE_IRQ_HIGHEDGE,
1da177e4 LT	118	},
	119	};
	120
	121	static struct platform_device voiceblue_smc91x_device = {
	122	.name = "smc91x",
	123	.id = 0,
	124	.num_resources = ARRAY_SIZE(voiceblue_smc91x_resources),
	125	.resource = voiceblue_smc91x_resources,
	126	};
	127
	128	static struct platform_device *voiceblue_devices[] __initdata = {
7c38cf02	129	&voiceblue_flash_device,
1da177e4 LT	130	&voiceblue_smc91x_device,
	131	};
	132
	133	static struct omap_usb_config voiceblue_usb_config __initdata = {
	134	.hmc_mode = 3,
	135	.register_host = 1,
	136	.register_dev = 1,
	137	.pins[0] = 2,
	138	.pins[1] = 6,
	139	.pins[2] = 6,
	140	};
	141
7c38cf02 TL	142	static struct omap_mmc_config voiceblue_mmc_config __initdata = {
	143	.mmc[0] = {
	144	.enabled = 1,
	145	.power_pin = 2,
	146	.switch_pin = -1,
	147	},
	148	};
	149
3179a019 TL	150	static struct omap_uart_config voiceblue_uart_config __initdata = {
	151	.enabled_uarts = ((1 << 0) \| (1 << 1) \| (1 << 2)),
	152	};
	153
1da177e4	154	static struct omap_board_config_kernel voiceblue_config[] = {
9b6553cd TL	155	{ OMAP_TAG_USB, &voiceblue_usb_config },
	156	{ OMAP_TAG_MMC, &voiceblue_mmc_config },
	157	{ OMAP_TAG_UART, &voiceblue_uart_config },
1da177e4 LT	158	};
	159
	160	static void __init voiceblue_init_irq(void)
	161	{
87bd63f6	162	omap1_init_common_hw();
1da177e4 LT	163	omap_init_irq();
	164	omap_gpio_init();
	165	}
	166
	167	static void __init voiceblue_init(void)
	168	{
1da177e4 LT	169	/* Watchdog */
	170	omap_request_gpio(0);
	171	/* smc91x reset */
	172	omap_request_gpio(7);
	173	omap_set_gpio_direction(7, 0);
	174	omap_set_gpio_dataout(7, 1);
	175	udelay(2); /* wait at least 100ns */
	176	omap_set_gpio_dataout(7, 0);
	177	mdelay(50); /* 50ms until PHY ready */
	178	/* smc91x interrupt pin */
	179	omap_request_gpio(8);
1da177e4 LT	180	/* 16C554 reset*/
	181	omap_request_gpio(6);
	182	omap_set_gpio_direction(6, 0);
	183	omap_set_gpio_dataout(6, 0);
	184	/* 16C554 interrupt pins */
	185	omap_request_gpio(12);
	186	omap_request_gpio(13);
	187	omap_request_gpio(14);
	188	omap_request_gpio(15);
6cab4860 DES	189	set_irq_type(OMAP_GPIO_IRQ(12), IRQ_TYPE_EDGE_RISING);
	190	set_irq_type(OMAP_GPIO_IRQ(13), IRQ_TYPE_EDGE_RISING);
	191	set_irq_type(OMAP_GPIO_IRQ(14), IRQ_TYPE_EDGE_RISING);
	192	set_irq_type(OMAP_GPIO_IRQ(15), IRQ_TYPE_EDGE_RISING);
1da177e4 LT	193
	194	platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
	195	omap_board_config = voiceblue_config;
	196	omap_board_config_size = ARRAY_SIZE(voiceblue_config);
3179a019	197	omap_serial_init();
1ed16a86	198	omap_register_i2c_bus(1, 100, NULL, 0);
7c38cf02 TL	199
	200	/* There is a good chance board is going up, so enable power LED
	201	* (it is connected through invertor) */
	202	omap_writeb(0x00, OMAP_LPG1_LCR);
	203	omap_writeb(0x00, OMAP_LPG1_PMR); /* Disable clock */
1da177e4 LT	204	}
1da177e4 LT	205
1da177e4 LT	206	static void __init voiceblue_map_io(void)
1da177e4 LT	207	{
87bd63f6	208	omap1_map_common_io();
1da177e4 LT	209	}
	210
	211	#define MACHINE_PANICED 1
	212	#define MACHINE_REBOOTING 2
	213	#define MACHINE_REBOOT 4
	214	static unsigned long machine_state;
	215
	216	static int panic_event(struct notifier_block *this, unsigned long event,
	217	void *ptr)
	218	{
	219	if (test_and_set_bit(MACHINE_PANICED, &machine_state))
	220	return NOTIFY_DONE;
	221
7c38cf02	222	/* Flash power LED */
1da177e4	223	omap_writeb(0x78, OMAP_LPG1_LCR);
7c38cf02	224	omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */
1da177e4 LT	225
	226	return NOTIFY_DONE;
	227	}
	228
	229	static struct notifier_block panic_block = {
	230	.notifier_call = panic_event,
	231	};
	232
7c38cf02	233	static int __init voiceblue_setup(void)
1da177e4 LT	234	{
1da177e4 LT	235	/* Setup panic notifier */
a524626b	236	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
1da177e4 LT	237
	238	return 0;
	239	}
7c38cf02	240	postcore_initcall(voiceblue_setup);
1da177e4 LT	241
	242	static int wdt_gpio_state;
	243
	244	void voiceblue_wdt_enable(void)
	245	{
	246	omap_set_gpio_direction(0, 0);
	247	omap_set_gpio_dataout(0, 0);
	248	omap_set_gpio_dataout(0, 1);
	249	omap_set_gpio_dataout(0, 0);
	250	wdt_gpio_state = 0;
	251	}
	252
	253	void voiceblue_wdt_disable(void)
	254	{
	255	omap_set_gpio_dataout(0, 0);
	256	omap_set_gpio_dataout(0, 1);
	257	omap_set_gpio_dataout(0, 0);
	258	omap_set_gpio_direction(0, 1);
	259	}
	260
	261	void voiceblue_wdt_ping(void)
	262	{
	263	if (test_bit(MACHINE_REBOOT, &machine_state))
	264	return;
	265
	266	wdt_gpio_state = !wdt_gpio_state;
	267	omap_set_gpio_dataout(0, wdt_gpio_state);
	268	}
	269
	270	void voiceblue_reset(void)
	271	{
	272	set_bit(MACHINE_REBOOT, &machine_state);
	273	voiceblue_wdt_enable();
	274	while (1) ;
	275	}
	276
	277	EXPORT_SYMBOL(voiceblue_wdt_enable);
	278	EXPORT_SYMBOL(voiceblue_wdt_disable);
	279	EXPORT_SYMBOL(voiceblue_wdt_ping);
	280
	281	MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
e9dea0c6	282	/* Maintainer: Ladislav Michl <michl@2n.cz> */
e9dea0c6 RK	283	.phys_io = 0xfff00000,
	284	.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
	285	.boot_params = 0x10000100,
	286	.map_io = voiceblue_map_io,
	287	.init_irq = voiceblue_init_irq,
	288	.init_machine = voiceblue_init,
	289	.timer = &omap_timer,
1da177e4	290	MACHINE_END