[thirdparty/linux.git] / arch / arm / mach-iop32x / n2100.c

/*
 * arch/arm/mach-iop32x/n2100.c
 *
 * Board support code for the Thecus N2100 platform.
 *
 * Author: Rory Bolt <rorybolt@pacbell.net>
 * Copyright (C) 2002 Rory Bolt
 * Copyright 2003 (c) MontaVista, Software, Inc.
 * Copyright (C) 2004 Intel Corp.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 */

#include <linux/mm.h>
#include <linux/init.h>
#include <linux/f75375s.h>
#include <linux/leds-pca9532.h>
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/pm.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/serial_core.h>
#include <linux/serial_8250.h>
#include <linux/mtd/physmap.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/reboot.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/pci.h>
#include <asm/mach/time.h>
#include <asm/mach-types.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <mach/time.h>

/*
 * N2100 timer tick configuration.
 */
static void __init n2100_timer_init(void)
{
	/* 33.000 MHz crystal.  */
	iop_init_time(198000000);
}

static struct sys_timer n2100_timer = {
	.init		= n2100_timer_init,
	.offset		= iop_gettimeoffset,
};


/*
 * N2100 I/O.
 */
static struct map_desc n2100_io_desc[] __initdata = {
	{	/* on-board devices */
		.virtual	= N2100_UART,
		.pfn		= __phys_to_pfn(N2100_UART),
		.length		= 0x00100000,
		.type		= MT_DEVICE
	},
};

void __init n2100_map_io(void)
{
	iop3xx_map_io();
	iotable_init(n2100_io_desc, ARRAY_SIZE(n2100_io_desc));
}


/*
 * N2100 PCI.
 */
static int __init
n2100_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
	int irq;

	if (PCI_SLOT(dev->devfn) == 1) {
		/* RTL8110SB #1 */
		irq = IRQ_IOP32X_XINT0;
	} else if (PCI_SLOT(dev->devfn) == 2) {
		/* RTL8110SB #2 */
		irq = IRQ_IOP32X_XINT3;
	} else if (PCI_SLOT(dev->devfn) == 3) {
		/* Sil3512 */
		irq = IRQ_IOP32X_XINT2;
	} else if (PCI_SLOT(dev->devfn) == 4 && pin == 1) {
		/* VT6212 INTA */
		irq = IRQ_IOP32X_XINT1;
	} else if (PCI_SLOT(dev->devfn) == 4 && pin == 2) {
		/* VT6212 INTB */
		irq = IRQ_IOP32X_XINT0;
	} else if (PCI_SLOT(dev->devfn) == 4 && pin == 3) {
		/* VT6212 INTC */
		irq = IRQ_IOP32X_XINT2;
	} else if (PCI_SLOT(dev->devfn) == 5) {
		/* Mini-PCI slot */
		irq = IRQ_IOP32X_XINT3;
	} else {
		printk(KERN_ERR "n2100_pci_map_irq() called for unknown "
			"device PCI:%d:%d:%d\n", dev->bus->number,
			PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
		irq = -1;
	}

	return irq;
}

static struct hw_pci n2100_pci __initdata = {
	.swizzle	= pci_std_swizzle,
	.nr_controllers = 1,
	.setup		= iop3xx_pci_setup,
	.preinit	= iop3xx_pci_preinit,
	.scan		= iop3xx_pci_scan_bus,
	.map_irq	= n2100_pci_map_irq,
};

/*
 * Both r8169 chips on the n2100 exhibit PCI parity problems.  Set
 * the ->broken_parity_status flag for both ports so that the r8169
 * driver knows it should ignore error interrupts.
 */
static void n2100_fixup_r8169(struct pci_dev *dev)
{
	if (dev->bus->number == 0 &&
	    (dev->devfn == PCI_DEVFN(1, 0) ||
	     dev->devfn == PCI_DEVFN(2, 0)))
		dev->broken_parity_status = 1;
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_REALTEK, PCI_ANY_ID, n2100_fixup_r8169);

static int __init n2100_pci_init(void)
{
	if (machine_is_n2100())
		pci_common_init(&n2100_pci);

	return 0;
}

subsys_initcall(n2100_pci_init);


/*
 * N2100 machine initialisation.
 */
static struct physmap_flash_data n2100_flash_data = {
	.width		= 2,
};

static struct resource n2100_flash_resource = {
	.start		= 0xf0000000,
	.end		= 0xf0ffffff,
	.flags		= IORESOURCE_MEM,
};

static struct platform_device n2100_flash_device = {
	.name		= "physmap-flash",
	.id		= 0,
	.dev		= {
		.platform_data	= &n2100_flash_data,
	},
	.num_resources	= 1,
	.resource	= &n2100_flash_resource,
};


static struct plat_serial8250_port n2100_serial_port[] = {
	{
		.mapbase	= N2100_UART,
		.membase	= (char *)N2100_UART,
		.irq		= 0,
		.flags		= UPF_SKIP_TEST,
		.iotype		= UPIO_MEM,
		.regshift	= 0,
		.uartclk	= 1843200,
	},
	{ },
};

static struct resource n2100_uart_resource = {
	.start		= N2100_UART,
	.end		= N2100_UART + 7,
	.flags		= IORESOURCE_MEM,
};

static struct platform_device n2100_serial_device = {
	.name		= "serial8250",
	.id		= PLAT8250_DEV_PLATFORM,
	.dev		= {
		.platform_data		= n2100_serial_port,
	},
	.num_resources	= 1,
	.resource	= &n2100_uart_resource,
};

static struct f75375s_platform_data n2100_f75375s = {
	.pwm		= { 255, 255 },
	.pwm_enable = { 0, 0 },
};

static struct pca9532_platform_data n2100_leds = {
	.leds = {
	{	.name = "n2100:red:satafail0",
		.state = PCA9532_OFF,
		.type = PCA9532_TYPE_LED,
	},
	{	.name = "n2100:red:satafail1",
		.state = PCA9532_OFF,
		.type = PCA9532_TYPE_LED,
	},
	{	.name = "n2100:blue:usb",
		.state = PCA9532_OFF,
		.type = PCA9532_TYPE_LED,
	},
	{ 	.type = PCA9532_TYPE_NONE },

	{ 	.type = PCA9532_TYPE_NONE },
	{ 	.type = PCA9532_TYPE_NONE },
	{ 	.type = PCA9532_TYPE_NONE },
	{	.name = "n2100:red:usb",
		.state = PCA9532_OFF,
		.type = PCA9532_TYPE_LED,
	},

	{	.type = PCA9532_TYPE_NONE }, /* power OFF gpio */
	{	.type = PCA9532_TYPE_NONE }, /* reset gpio */
	{	.type = PCA9532_TYPE_NONE },
	{	.type = PCA9532_TYPE_NONE },

	{	.type = PCA9532_TYPE_NONE },
	{	.name = "n2100:orange:system",
		.state = PCA9532_OFF,
		.type = PCA9532_TYPE_LED,
	},
	{	.name = "n2100:red:system",
		.state = PCA9532_OFF,
		.type = PCA9532_TYPE_LED,
	},
	{	.name = "N2100 beeper"  ,
		.state =  PCA9532_OFF,
		.type = PCA9532_TYPE_N2100_BEEP,
	},
	},
	.psc = { 0, 0 },
	.pwm = { 0, 0 },
};

static struct i2c_board_info __initdata n2100_i2c_devices[] = {
	{
		I2C_BOARD_INFO("rs5c372b", 0x32),
	},
	{
		I2C_BOARD_INFO("f75375", 0x2e),
		.platform_data = &n2100_f75375s,
	},
	{
		I2C_BOARD_INFO("pca9532", 0x60),
		.platform_data = &n2100_leds,
	},
};

/*
 * Pull PCA9532 GPIO #8 low to power off the machine.
 */
static void n2100_power_off(void)
{
	local_irq_disable();

	/* Start condition, I2C address of PCA9532, write transaction.  */
	*IOP3XX_IDBR0 = 0xc0;
	*IOP3XX_ICR0 = 0xe9;
	mdelay(1);

	/* Write address 0x08.  */
	*IOP3XX_IDBR0 = 0x08;
	*IOP3XX_ICR0 = 0xe8;
	mdelay(1);

	/* Write data 0x01, stop condition.  */
	*IOP3XX_IDBR0 = 0x01;
	*IOP3XX_ICR0 = 0xea;

	while (1)
		;
}


static struct timer_list power_button_poll_timer;

static void power_button_poll(unsigned long dummy)
{
	if (gpio_line_get(N2100_POWER_BUTTON) == 0) {
		ctrl_alt_del();
		return;
	}

	power_button_poll_timer.expires = jiffies + (HZ / 10);
	add_timer(&power_button_poll_timer);
}


static void __init n2100_init_machine(void)
{
	platform_device_register(&iop3xx_i2c0_device);
	platform_device_register(&n2100_flash_device);
	platform_device_register(&n2100_serial_device);
	platform_device_register(&iop3xx_dma_0_channel);
	platform_device_register(&iop3xx_dma_1_channel);

	i2c_register_board_info(0, n2100_i2c_devices,
		ARRAY_SIZE(n2100_i2c_devices));

	pm_power_off = n2100_power_off;

	init_timer(&power_button_poll_timer);
	power_button_poll_timer.function = power_button_poll;
	power_button_poll_timer.expires = jiffies + (HZ / 10);
	add_timer(&power_button_poll_timer);
}

MACHINE_START(N2100, "Thecus N2100")
	/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
	.phys_io	= N2100_UART,
	.io_pg_offst	= ((N2100_UART) >> 18) & 0xfffc,
	.boot_params	= 0xa0000100,
	.map_io		= n2100_map_io,
	.init_irq	= iop32x_init_irq,
	.timer		= &n2100_timer,
	.init_machine	= n2100_init_machine,
MACHINE_END
Commit	Line	Data
e60d07b6 LB	1	/*
	2	* arch/arm/mach-iop32x/n2100.c
	3	*
	4	* Board support code for the Thecus N2100 platform.
	5	*
	6	* Author: Rory Bolt <rorybolt@pacbell.net>
	7	* Copyright (C) 2002 Rory Bolt
	8	* Copyright 2003 (c) MontaVista, Software, Inc.
	9	* Copyright (C) 2004 Intel Corp.
	10	*
	11	* This program is free software; you can redistribute it and/or modify it
	12	* under the terms of the GNU General Public License as published by the
	13	* Free Software Foundation; either version 2 of the License, or (at your
	14	* option) any later version.
	15	*/
	16
	17	#include <linux/mm.h>
	18	#include <linux/init.h>
9aa69338	19	#include <linux/f75375s.h>
30be0486	20	#include <linux/leds-pca9532.h>
e60d07b6 LB	21	#include <linux/delay.h>
	22	#include <linux/kernel.h>
	23	#include <linux/pci.h>
	24	#include <linux/pm.h>
	25	#include <linux/string.h>
	26	#include <linux/slab.h>
	27	#include <linux/serial_core.h>
	28	#include <linux/serial_8250.h>
	29	#include <linux/mtd/physmap.h>
c00593f6	30	#include <linux/i2c.h>
e60d07b6 LB	31	#include <linux/platform_device.h>
e60d07b6 LB	32	#include <linux/reboot.h>
fced80c7	33	#include <linux/io.h>
a09e64fb	34	#include <mach/hardware.h>
e60d07b6 LB	35	#include <asm/irq.h>
	36	#include <asm/mach/arch.h>
	37	#include <asm/mach/map.h>
	38	#include <asm/mach/pci.h>
	39	#include <asm/mach/time.h>
	40	#include <asm/mach-types.h>
	41	#include <asm/page.h>
	42	#include <asm/pgtable.h>
a09e64fb	43	#include <mach/time.h>
e60d07b6 LB	44
	45	/*
	46	* N2100 timer tick configuration.
	47	*/
	48	static void __init n2100_timer_init(void)
	49	{
	50	/* 33.000 MHz crystal. */
3668b45d	51	iop_init_time(198000000);
e60d07b6 LB	52	}
	53
	54	static struct sys_timer n2100_timer = {
	55	.init = n2100_timer_init,
3668b45d	56	.offset = iop_gettimeoffset,
e60d07b6 LB	57	};
	58
	59
	60	/*
	61	* N2100 I/O.
	62	*/
	63	static struct map_desc n2100_io_desc[] __initdata = {
	64	{ /* on-board devices */
	65	.virtual = N2100_UART,
	66	.pfn = __phys_to_pfn(N2100_UART),
	67	.length = 0x00100000,
	68	.type = MT_DEVICE
	69	},
	70	};
	71
	72	void __init n2100_map_io(void)
	73	{
	74	iop3xx_map_io();
	75	iotable_init(n2100_io_desc, ARRAY_SIZE(n2100_io_desc));
	76	}
	77
	78
	79	/*
	80	* N2100 PCI.
	81	*/
d73d8011	82	static int __init
e60d07b6 LB	83	n2100_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
	84	{
	85	int irq;
	86
	87	if (PCI_SLOT(dev->devfn) == 1) {
	88	/* RTL8110SB #1 */
	89	irq = IRQ_IOP32X_XINT0;
	90	} else if (PCI_SLOT(dev->devfn) == 2) {
	91	/* RTL8110SB #2 */
811c9a4b	92	irq = IRQ_IOP32X_XINT3;
e60d07b6 LB	93	} else if (PCI_SLOT(dev->devfn) == 3) {
	94	/* Sil3512 */
	95	irq = IRQ_IOP32X_XINT2;
	96	} else if (PCI_SLOT(dev->devfn) == 4 && pin == 1) {
	97	/* VT6212 INTA */
	98	irq = IRQ_IOP32X_XINT1;
	99	} else if (PCI_SLOT(dev->devfn) == 4 && pin == 2) {
	100	/* VT6212 INTB */
	101	irq = IRQ_IOP32X_XINT0;
	102	} else if (PCI_SLOT(dev->devfn) == 4 && pin == 3) {
	103	/* VT6212 INTC */
	104	irq = IRQ_IOP32X_XINT2;
	105	} else if (PCI_SLOT(dev->devfn) == 5) {
	106	/* Mini-PCI slot */
	107	irq = IRQ_IOP32X_XINT3;
	108	} else {
	109	printk(KERN_ERR "n2100_pci_map_irq() called for unknown "
	110	"device PCI:%d:%d:%d\n", dev->bus->number,
	111	PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
	112	irq = -1;
	113	}
	114
	115	return irq;
	116	}
	117
	118	static struct hw_pci n2100_pci __initdata = {
	119	.swizzle = pci_std_swizzle,
	120	.nr_controllers = 1,
	121	.setup = iop3xx_pci_setup,
	122	.preinit = iop3xx_pci_preinit,
	123	.scan = iop3xx_pci_scan_bus,
	124	.map_irq = n2100_pci_map_irq,
	125	};
	126
66822b2e LB	127	/*
	128	* Both r8169 chips on the n2100 exhibit PCI parity problems. Set
	129	* the ->broken_parity_status flag for both ports so that the r8169
	130	* driver knows it should ignore error interrupts.
	131	*/
	132	static void n2100_fixup_r8169(struct pci_dev *dev)
	133	{
	134	if (dev->bus->number == 0 &&
	135	(dev->devfn == PCI_DEVFN(1, 0) \|\|
	136	dev->devfn == PCI_DEVFN(2, 0)))
	137	dev->broken_parity_status = 1;
	138	}
	139	DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_REALTEK, PCI_ANY_ID, n2100_fixup_r8169);
	140
e60d07b6 LB	141	static int __init n2100_pci_init(void)
	142	{
	143	if (machine_is_n2100())
	144	pci_common_init(&n2100_pci);
	145
	146	return 0;
	147	}
	148
	149	subsys_initcall(n2100_pci_init);
	150
	151
	152	/*
	153	* N2100 machine initialisation.
	154	*/
	155	static struct physmap_flash_data n2100_flash_data = {
	156	.width = 2,
	157	};
	158
	159	static struct resource n2100_flash_resource = {
	160	.start = 0xf0000000,
	161	.end = 0xf0ffffff,
	162	.flags = IORESOURCE_MEM,
	163	};
	164
	165	static struct platform_device n2100_flash_device = {
	166	.name = "physmap-flash",
	167	.id = 0,
	168	.dev = {
	169	.platform_data = &n2100_flash_data,
	170	},
	171	.num_resources = 1,
	172	.resource = &n2100_flash_resource,
	173	};
	174
	175
	176	static struct plat_serial8250_port n2100_serial_port[] = {
	177	{
	178	.mapbase = N2100_UART,
	179	.membase = (char *)N2100_UART,
	180	.irq = 0,
	181	.flags = UPF_SKIP_TEST,
	182	.iotype = UPIO_MEM,
	183	.regshift = 0,
	184	.uartclk = 1843200,
	185	},
	186	{ },
	187	};
	188
	189	static struct resource n2100_uart_resource = {
	190	.start = N2100_UART,
	191	.end = N2100_UART + 7,
	192	.flags = IORESOURCE_MEM,
	193	};
	194
	195	static struct platform_device n2100_serial_device = {
	196	.name = "serial8250",
	197	.id = PLAT8250_DEV_PLATFORM,
	198	.dev = {
	199	.platform_data = n2100_serial_port,
	200	},
	201	.num_resources = 1,
	202	.resource = &n2100_uart_resource,
	203	};
	204
9aa69338 RV	205	static struct f75375s_platform_data n2100_f75375s = {
	206	.pwm = { 255, 255 },
	207	.pwm_enable = { 0, 0 },
	208	};
	209
30be0486 RV	210	static struct pca9532_platform_data n2100_leds = {
	211	.leds = {
	212	{ .name = "n2100:red:satafail0",
	213	.state = PCA9532_OFF,
	214	.type = PCA9532_TYPE_LED,
	215	},
	216	{ .name = "n2100:red:satafail1",
	217	.state = PCA9532_OFF,
	218	.type = PCA9532_TYPE_LED,
	219	},
	220	{ .name = "n2100:blue:usb",
	221	.state = PCA9532_OFF,
	222	.type = PCA9532_TYPE_LED,
	223	},
	224	{ .type = PCA9532_TYPE_NONE },
	225
	226	{ .type = PCA9532_TYPE_NONE },
	227	{ .type = PCA9532_TYPE_NONE },
	228	{ .type = PCA9532_TYPE_NONE },
	229	{ .name = "n2100:red:usb",
	230	.state = PCA9532_OFF,
	231	.type = PCA9532_TYPE_LED,
	232	},
	233
	234	{ .type = PCA9532_TYPE_NONE }, /* power OFF gpio */
	235	{ .type = PCA9532_TYPE_NONE }, /* reset gpio */
	236	{ .type = PCA9532_TYPE_NONE },
	237	{ .type = PCA9532_TYPE_NONE },
	238
	239	{ .type = PCA9532_TYPE_NONE },
	240	{ .name = "n2100:orange:system",
	241	.state = PCA9532_OFF,
	242	.type = PCA9532_TYPE_LED,
	243	},
	244	{ .name = "n2100:red:system",
	245	.state = PCA9532_OFF,
	246	.type = PCA9532_TYPE_LED,
	247	},
	248	{ .name = "N2100 beeper" ,
	249	.state = PCA9532_OFF,
	250	.type = PCA9532_TYPE_N2100_BEEP,
	251	},
	252	},
	253	.psc = { 0, 0 },
	254	.pwm = { 0, 0 },
	255	};
	256
c00593f6 MM	257	static struct i2c_board_info __initdata n2100_i2c_devices[] = {
c00593f6 MM	258	{
3760f736	259	I2C_BOARD_INFO("rs5c372b", 0x32),
c00593f6	260	},
9aa69338 RV	261	{
9aa69338 RV	262	I2C_BOARD_INFO("f75375", 0x2e),
9aa69338 RV	263	.platform_data = &n2100_f75375s,
9aa69338 RV	264	},
30be0486 RV	265	{
	266	I2C_BOARD_INFO("pca9532", 0x60),
	267	.platform_data = &n2100_leds,
	268	},
c00593f6	269	};
e60d07b6 LB	270
	271	/*
	272	* Pull PCA9532 GPIO #8 low to power off the machine.
	273	*/
	274	static void n2100_power_off(void)
	275	{
	276	local_irq_disable();
	277
	278	/* Start condition, I2C address of PCA9532, write transaction. */
	279	*IOP3XX_IDBR0 = 0xc0;
	280	*IOP3XX_ICR0 = 0xe9;
	281	mdelay(1);
	282
	283	/* Write address 0x08. */
	284	*IOP3XX_IDBR0 = 0x08;
	285	*IOP3XX_ICR0 = 0xe8;
	286	mdelay(1);
	287
	288	/* Write data 0x01, stop condition. */
	289	*IOP3XX_IDBR0 = 0x01;
	290	*IOP3XX_ICR0 = 0xea;
	291
	292	while (1)
	293	;
	294	}
	295
	296
	297	static struct timer_list power_button_poll_timer;
	298
	299	static void power_button_poll(unsigned long dummy)
	300	{
	301	if (gpio_line_get(N2100_POWER_BUTTON) == 0) {
	302	ctrl_alt_del();
	303	return;
	304	}
	305
	306	power_button_poll_timer.expires = jiffies + (HZ / 10);
	307	add_timer(&power_button_poll_timer);
	308	}
	309
	310
	311	static void __init n2100_init_machine(void)
	312	{
	313	platform_device_register(&iop3xx_i2c0_device);
	314	platform_device_register(&n2100_flash_device);
	315	platform_device_register(&n2100_serial_device);
2492c845 DW	316	platform_device_register(&iop3xx_dma_0_channel);
2492c845 DW	317	platform_device_register(&iop3xx_dma_1_channel);
e60d07b6	318
c00593f6 MM	319	i2c_register_board_info(0, n2100_i2c_devices,
	320	ARRAY_SIZE(n2100_i2c_devices));
	321
e60d07b6 LB	322	pm_power_off = n2100_power_off;
	323
	324	init_timer(&power_button_poll_timer);
	325	power_button_poll_timer.function = power_button_poll;
	326	power_button_poll_timer.expires = jiffies + (HZ / 10);
	327	add_timer(&power_button_poll_timer);
	328	}
	329
	330	MACHINE_START(N2100, "Thecus N2100")
	331	/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
	332	.phys_io = N2100_UART,
	333	.io_pg_offst = ((N2100_UART) >> 18) & 0xfffc,
	334	.boot_params = 0xa0000100,
	335	.map_io = n2100_map_io,
	336	.init_irq = iop32x_init_irq,
	337	.timer = &n2100_timer,
	338	.init_machine = n2100_init_machine,
	339	MACHINE_END