[thirdparty/linux.git] / arch / arm / mach-ixp4xx / nslu2-setup.c

// SPDX-License-Identifier: GPL-2.0
/*
 * arch/arm/mach-ixp4xx/nslu2-setup.c
 *
 * NSLU2 board-setup
 *
 * Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
 *
 * based on ixdp425-setup.c:
 *      Copyright (C) 2003-2004 MontaVista Software, Inc.
 * based on nslu2-power.c:
 *	Copyright (C) 2005 Tower Technologies
 *
 * Author: Mark Rakes <mrakes at mac.com>
 * Author: Rod Whitby <rod@whitby.id.au>
 * Author: Alessandro Zummo <a.zummo@towertech.it>
 * Maintainers: http://www.nslu2-linux.org/
 *
 */
#include <linux/gpio.h>
#include <linux/if_ether.h>
#include <linux/irq.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <linux/leds.h>
#include <linux/reboot.h>
#include <linux/i2c.h>
#include <linux/gpio/machine.h>
#include <linux/io.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/time.h>

#include "irqs.h"

#define NSLU2_SDA_PIN		7
#define NSLU2_SCL_PIN		6

/* NSLU2 Timer */
#define NSLU2_FREQ 66000000

/* Buttons */
#define NSLU2_PB_GPIO		5	/* power button */
#define NSLU2_PO_GPIO		8	/* power off */
#define NSLU2_RB_GPIO		12	/* reset button */

/* Buzzer */
#define NSLU2_GPIO_BUZZ		4

/* LEDs */
#define NSLU2_LED_RED_GPIO	0
#define NSLU2_LED_GRN_GPIO	1
#define NSLU2_LED_DISK1_GPIO	3
#define NSLU2_LED_DISK2_GPIO	2

static struct flash_platform_data nslu2_flash_data = {
	.map_name		= "cfi_probe",
	.width			= 2,
};

static struct resource nslu2_flash_resource = {
	.flags			= IORESOURCE_MEM,
};

static struct platform_device nslu2_flash = {
	.name			= "IXP4XX-Flash",
	.id			= 0,
	.dev.platform_data	= &nslu2_flash_data,
	.num_resources		= 1,
	.resource		= &nslu2_flash_resource,
};

static struct gpiod_lookup_table nslu2_i2c_gpiod_table = {
	.dev_id		= "i2c-gpio.0",
	.table		= {
		GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", NSLU2_SDA_PIN,
				NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
		GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", NSLU2_SCL_PIN,
				NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
	},
};

static struct i2c_board_info __initdata nslu2_i2c_board_info [] = {
	{
		I2C_BOARD_INFO("x1205", 0x6f),
	},
};

static struct gpio_led nslu2_led_pins[] = {
	{
		.name		= "nslu2:green:ready",
		.gpio		= NSLU2_LED_GRN_GPIO,
	},
	{
		.name		= "nslu2:red:status",
		.gpio		= NSLU2_LED_RED_GPIO,
	},
	{
		.name		= "nslu2:green:disk-1",
		.gpio		= NSLU2_LED_DISK1_GPIO,
		.active_low	= true,
	},
	{
		.name		= "nslu2:green:disk-2",
		.gpio		= NSLU2_LED_DISK2_GPIO,
		.active_low	= true,
	},
};

static struct gpio_led_platform_data nslu2_led_data = {
	.num_leds		= ARRAY_SIZE(nslu2_led_pins),
	.leds			= nslu2_led_pins,
};

static struct platform_device nslu2_leds = {
	.name			= "leds-gpio",
	.id			= -1,
	.dev.platform_data	= &nslu2_led_data,
};

static struct platform_device nslu2_i2c_gpio = {
	.name			= "i2c-gpio",
	.id			= 0,
	.dev	 = {
		.platform_data	= NULL,
	},
};

static struct resource nslu2_beeper_resources[] = {
	{
		.start	= IRQ_IXP4XX_TIMER2,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device nslu2_beeper = {
	.name			= "ixp4xx-beeper",
	.id			= NSLU2_GPIO_BUZZ,
	.resource		= nslu2_beeper_resources,
	.num_resources		= ARRAY_SIZE(nslu2_beeper_resources),
};

static struct resource nslu2_uart_resources[] = {
	{
		.start		= IXP4XX_UART1_BASE_PHYS,
		.end		= IXP4XX_UART1_BASE_PHYS + 0x0fff,
		.flags		= IORESOURCE_MEM,
	},
	{
		.start		= IXP4XX_UART2_BASE_PHYS,
		.end		= IXP4XX_UART2_BASE_PHYS + 0x0fff,
		.flags		= IORESOURCE_MEM,
	}
};

static struct plat_serial8250_port nslu2_uart_data[] = {
	{
		.mapbase	= IXP4XX_UART1_BASE_PHYS,
		.membase	= (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
		.irq		= IRQ_IXP4XX_UART1,
		.flags		= UPF_BOOT_AUTOCONF,
		.iotype		= UPIO_MEM,
		.regshift	= 2,
		.uartclk	= IXP4XX_UART_XTAL,
	},
	{
		.mapbase	= IXP4XX_UART2_BASE_PHYS,
		.membase	= (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
		.irq		= IRQ_IXP4XX_UART2,
		.flags		= UPF_BOOT_AUTOCONF,
		.iotype		= UPIO_MEM,
		.regshift	= 2,
		.uartclk	= IXP4XX_UART_XTAL,
	},
	{ }
};

static struct platform_device nslu2_uart = {
	.name			= "serial8250",
	.id			= PLAT8250_DEV_PLATFORM,
	.dev.platform_data	= nslu2_uart_data,
	.num_resources		= 2,
	.resource		= nslu2_uart_resources,
};

/* Built-in 10/100 Ethernet MAC interfaces */
static struct eth_plat_info nslu2_plat_eth[] = {
	{
		.phy		= 1,
		.rxq		= 3,
		.txreadyq	= 20,
	}
};

static struct platform_device nslu2_eth[] = {
	{
		.name			= "ixp4xx_eth",
		.id			= IXP4XX_ETH_NPEB,
		.dev.platform_data	= nslu2_plat_eth,
	}
};

static struct platform_device *nslu2_devices[] __initdata = {
	&nslu2_i2c_gpio,
	&nslu2_flash,
	&nslu2_beeper,
	&nslu2_leds,
	&nslu2_eth[0],
};

static void nslu2_power_off(void)
{
	/* This causes the box to drop the power and go dead. */

	/* enable the pwr cntl gpio and assert power off */
	gpio_direction_output(NSLU2_PO_GPIO, 1);
}

static irqreturn_t nslu2_power_handler(int irq, void *dev_id)
{
	/* Signal init to do the ctrlaltdel action, this will bypass init if
	 * it hasn't started and do a kernel_restart.
	 */
	ctrl_alt_del();

	return IRQ_HANDLED;
}

static irqreturn_t nslu2_reset_handler(int irq, void *dev_id)
{
	/* This is the paper-clip reset, it shuts the machine down directly.
	 */
	machine_power_off();

	return IRQ_HANDLED;
}

static int __init nslu2_gpio_init(void)
{
	if (!machine_is_nslu2())
		return 0;

	/* Request the power off GPIO */
	return gpio_request(NSLU2_PO_GPIO, "power off");
}
device_initcall(nslu2_gpio_init);

static void __init nslu2_timer_init(void)
{
    /* The xtal on this machine is non-standard. */
    ixp4xx_timer_freq = NSLU2_FREQ;

    /* Call standard timer_init function. */
    ixp4xx_timer_init();
}

static void __init nslu2_init(void)
{
	uint8_t __iomem *f;
	int i;

	ixp4xx_sys_init();

	nslu2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
	nslu2_flash_resource.end =
		IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;

	gpiod_add_lookup_table(&nslu2_i2c_gpiod_table);
	i2c_register_board_info(0, nslu2_i2c_board_info,
				ARRAY_SIZE(nslu2_i2c_board_info));

	/*
	 * This is only useful on a modified machine, but it is valuable
	 * to have it first in order to see debug messages, and so that
	 * it does *not* get removed if platform_add_devices fails!
	 */
	(void)platform_device_register(&nslu2_uart);

	platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));

	pm_power_off = nslu2_power_off;

	if (request_irq(gpio_to_irq(NSLU2_RB_GPIO), &nslu2_reset_handler,
		IRQF_TRIGGER_LOW, "NSLU2 reset button", NULL) < 0) {

		printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
			gpio_to_irq(NSLU2_RB_GPIO));
	}

	if (request_irq(gpio_to_irq(NSLU2_PB_GPIO), &nslu2_power_handler,
		IRQF_TRIGGER_HIGH, "NSLU2 power button", NULL) < 0) {

		printk(KERN_DEBUG "Power Button IRQ %d not available\n",
			gpio_to_irq(NSLU2_PB_GPIO));
	}

	/*
	 * Map in a portion of the flash and read the MAC address.
	 * Since it is stored in BE in the flash itself, we need to
	 * byteswap it if we're in LE mode.
	 */
	f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x40000);
	if (f) {
		for (i = 0; i < 6; i++)
#ifdef __ARMEB__
			nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + i);
#else
			nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + (i^3));
#endif
		iounmap(f);
	}
	printk(KERN_INFO "NSLU2: Using MAC address %pM for port 0\n",
	       nslu2_plat_eth[0].hwaddr);

}

MACHINE_START(NSLU2, "Linksys NSLU2")
	/* Maintainer: www.nslu2-linux.org */
	.atag_offset	= 0x100,
	.map_io		= ixp4xx_map_io,
	.init_early	= ixp4xx_init_early,
	.init_irq	= ixp4xx_init_irq,
	.init_time	= nslu2_timer_init,
	.init_machine	= nslu2_init,
#if defined(CONFIG_PCI)
	.dma_zone_size	= SZ_64M,
#endif
	.restart	= ixp4xx_restart,
MACHINE_END
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
a7918f39 AZ	2	/*
	3	* arch/arm/mach-ixp4xx/nslu2-setup.c
	4	*
	5	* NSLU2 board-setup
	6	*
0929ac3e RW	7	* Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
	8	*
	9	* based on ixdp425-setup.c:
a7918f39	10	* Copyright (C) 2003-2004 MontaVista Software, Inc.
0929ac3e RW	11	* based on nslu2-power.c:
0929ac3e RW	12	* Copyright (C) 2005 Tower Technologies
a7918f39 AZ	13	*
a7918f39 AZ	14	* Author: Mark Rakes <mrakes at mac.com>
e22b04fb	15	* Author: Rod Whitby <rod@whitby.id.au>
0929ac3e	16	* Author: Alessandro Zummo <a.zummo@towertech.it>
a7918f39 AZ	17	* Maintainers: http://www.nslu2-linux.org/
a7918f39 AZ	18	*
a7918f39	19	*/
2f8163ba	20	#include <linux/gpio.h>
b7edc84a	21	#include <linux/if_ether.h>
0929ac3e	22	#include <linux/irq.h>
a7918f39 AZ	23	#include <linux/serial.h>
a7918f39 AZ	24	#include <linux/serial_8250.h>
e22b04fb	25	#include <linux/leds.h>
0929ac3e	26	#include <linux/reboot.h>
e28067d5	27	#include <linux/i2c.h>
b2e63555	28	#include <linux/gpio/machine.h>
fced80c7	29	#include <linux/io.h>
a7918f39 AZ	30	#include <asm/mach-types.h>
	31	#include <asm/mach/arch.h>
	32	#include <asm/mach/flash.h>
435c5da0	33	#include <asm/mach/time.h>
a7918f39	34
dc8ef8cd LW	35	#include "irqs.h"
dc8ef8cd LW	36
c1117c63 KH	37	#define NSLU2_SDA_PIN 7
	38	#define NSLU2_SCL_PIN 6
	39
	40	/* NSLU2 Timer */
	41	#define NSLU2_FREQ 66000000
	42
	43	/* Buttons */
	44	#define NSLU2_PB_GPIO 5 /* power button */
	45	#define NSLU2_PO_GPIO 8 /* power off */
	46	#define NSLU2_RB_GPIO 12 /* reset button */
	47
	48	/* Buzzer */
	49	#define NSLU2_GPIO_BUZZ 4
	50
	51	/* LEDs */
	52	#define NSLU2_LED_RED_GPIO 0
	53	#define NSLU2_LED_GRN_GPIO 1
	54	#define NSLU2_LED_DISK1_GPIO 3
	55	#define NSLU2_LED_DISK2_GPIO 2
	56
a7918f39 AZ	57	static struct flash_platform_data nslu2_flash_data = {
	58	.map_name = "cfi_probe",
	59	.width = 2,
	60	};
	61
	62	static struct resource nslu2_flash_resource = {
a7918f39 AZ	63	.flags = IORESOURCE_MEM,
	64	};
	65
	66	static struct platform_device nslu2_flash = {
	67	.name = "IXP4XX-Flash",
	68	.id = 0,
	69	.dev.platform_data = &nslu2_flash_data,
	70	.num_resources = 1,
	71	.resource = &nslu2_flash_resource,
	72	};
	73
b2e63555	74	static struct gpiod_lookup_table nslu2_i2c_gpiod_table = {
f59c303b	75	.dev_id = "i2c-gpio.0",
b2e63555 LW	76	.table = {
b2e63555 LW	77	GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", NSLU2_SDA_PIN,
4d0ce62c	78	NULL, 0, GPIO_ACTIVE_HIGH \| GPIO_OPEN_DRAIN),
b2e63555	79	GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", NSLU2_SCL_PIN,
4d0ce62c	80	NULL, 1, GPIO_ACTIVE_HIGH \| GPIO_OPEN_DRAIN),
b2e63555	81	},
a7918f39 AZ	82	};
a7918f39 AZ	83
e28067d5 RW	84	static struct i2c_board_info __initdata nslu2_i2c_board_info [] = {
e28067d5 RW	85	{
3760f736	86	I2C_BOARD_INFO("x1205", 0x6f),
e28067d5 RW	87	},
	88	};
	89
1208ebf2	90	static struct gpio_led nslu2_led_pins[] = {
e22b04fb	91	{
6c152bee	92	.name = "nslu2:green:ready",
1208ebf2	93	.gpio = NSLU2_LED_GRN_GPIO,
e22b04fb RW	94	},
e22b04fb RW	95	{
6c152bee	96	.name = "nslu2:red:status",
1208ebf2	97	.gpio = NSLU2_LED_RED_GPIO,
e22b04fb RW	98	},
e22b04fb RW	99	{
6c152bee	100	.name = "nslu2:green:disk-1",
1208ebf2 RW	101	.gpio = NSLU2_LED_DISK1_GPIO,
1208ebf2 RW	102	.active_low = true,
e22b04fb RW	103	},
e22b04fb RW	104	{
6c152bee	105	.name = "nslu2:green:disk-2",
1208ebf2 RW	106	.gpio = NSLU2_LED_DISK2_GPIO,
1208ebf2 RW	107	.active_low = true,
e22b04fb RW	108	},
	109	};
	110
1208ebf2 RW	111	static struct gpio_led_platform_data nslu2_led_data = {
	112	.num_leds = ARRAY_SIZE(nslu2_led_pins),
	113	.leds = nslu2_led_pins,
	114	};
	115
e22b04fb	116	static struct platform_device nslu2_leds = {
1208ebf2	117	.name = "leds-gpio",
e22b04fb	118	.id = -1,
1208ebf2	119	.dev.platform_data = &nslu2_led_data,
e22b04fb	120	};
e22b04fb	121
5a4a2387 MLJ	122	static struct platform_device nslu2_i2c_gpio = {
5a4a2387 MLJ	123	.name = "i2c-gpio",
a7918f39	124	.id = 0,
5a4a2387	125	.dev = {
b2e63555	126	.platform_data = NULL,
5a4a2387	127	},
a7918f39 AZ	128	};
a7918f39 AZ	129
075df31a LW	130	static struct resource nslu2_beeper_resources[] = {
	131	{
	132	.start = IRQ_IXP4XX_TIMER2,
	133	.flags = IORESOURCE_IRQ,
	134	},
	135	};
	136
bc66d449 AZ	137	static struct platform_device nslu2_beeper = {
	138	.name = "ixp4xx-beeper",
	139	.id = NSLU2_GPIO_BUZZ,
075df31a LW	140	.resource = nslu2_beeper_resources,
075df31a LW	141	.num_resources = ARRAY_SIZE(nslu2_beeper_resources),
bc66d449 AZ	142	};
bc66d449 AZ	143
a7918f39 AZ	144	static struct resource nslu2_uart_resources[] = {
	145	{
	146	.start = IXP4XX_UART1_BASE_PHYS,
	147	.end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
	148	.flags = IORESOURCE_MEM,
	149	},
	150	{
	151	.start = IXP4XX_UART2_BASE_PHYS,
	152	.end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
	153	.flags = IORESOURCE_MEM,
	154	}
	155	};
	156
	157	static struct plat_serial8250_port nslu2_uart_data[] = {
	158	{
	159	.mapbase = IXP4XX_UART1_BASE_PHYS,
	160	.membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
	161	.irq = IRQ_IXP4XX_UART1,
	162	.flags = UPF_BOOT_AUTOCONF,
	163	.iotype = UPIO_MEM,
	164	.regshift = 2,
	165	.uartclk = IXP4XX_UART_XTAL,
	166	},
	167	{
	168	.mapbase = IXP4XX_UART2_BASE_PHYS,
	169	.membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
	170	.irq = IRQ_IXP4XX_UART2,
	171	.flags = UPF_BOOT_AUTOCONF,
	172	.iotype = UPIO_MEM,
	173	.regshift = 2,
	174	.uartclk = IXP4XX_UART_XTAL,
	175	},
	176	{ }
	177	};
	178
	179	static struct platform_device nslu2_uart = {
	180	.name = "serial8250",
	181	.id = PLAT8250_DEV_PLATFORM,
	182	.dev.platform_data = nslu2_uart_data,
	183	.num_resources = 2,
	184	.resource = nslu2_uart_resources,
	185	};
	186
b7edc84a RW	187	/* Built-in 10/100 Ethernet MAC interfaces */
	188	static struct eth_plat_info nslu2_plat_eth[] = {
	189	{
	190	.phy = 1,
	191	.rxq = 3,
	192	.txreadyq = 20,
	193	}
	194	};
	195
	196	static struct platform_device nslu2_eth[] = {
	197	{
	198	.name = "ixp4xx_eth",
	199	.id = IXP4XX_ETH_NPEB,
	200	.dev.platform_data = nslu2_plat_eth,
	201	}
	202	};
	203
a7918f39	204	static struct platform_device *nslu2_devices[] __initdata = {
5a4a2387	205	&nslu2_i2c_gpio,
a7918f39	206	&nslu2_flash,
bc66d449	207	&nslu2_beeper,
e22b04fb	208	&nslu2_leds,
b7edc84a	209	&nslu2_eth[0],
a7918f39 AZ	210	};
	211
	212	static void nslu2_power_off(void)
	213	{
	214	/* This causes the box to drop the power and go dead. */
	215
8040dd09 LW	216	/* enable the pwr cntl gpio and assert power off */
8040dd09 LW	217	gpio_direction_output(NSLU2_PO_GPIO, 1);
a7918f39 AZ	218	}
a7918f39 AZ	219
0929ac3e RW	220	static irqreturn_t nslu2_power_handler(int irq, void *dev_id)
	221	{
	222	/* Signal init to do the ctrlaltdel action, this will bypass init if
	223	* it hasn't started and do a kernel_restart.
	224	*/
	225	ctrl_alt_del();
	226
	227	return IRQ_HANDLED;
	228	}
	229
	230	static irqreturn_t nslu2_reset_handler(int irq, void *dev_id)
	231	{
	232	/* This is the paper-clip reset, it shuts the machine down directly.
	233	*/
	234	machine_power_off();
	235
	236	return IRQ_HANDLED;
	237	}
	238
8040dd09 LW	239	static int __init nslu2_gpio_init(void)
	240	{
	241	if (!machine_is_nslu2())
	242	return 0;
	243
	244	/* Request the power off GPIO */
	245	return gpio_request(NSLU2_PO_GPIO, "power off");
	246	}
	247	device_initcall(nslu2_gpio_init);
	248
435c5da0	249	static void __init nslu2_timer_init(void)
a7918f39	250	{
435c5da0 MLJ	251	/* The xtal on this machine is non-standard. */
	252	ixp4xx_timer_freq = NSLU2_FREQ;
	253
	254	/* Call standard timer_init function. */
	255	ixp4xx_timer_init();
	256	}
84904d0e	257
435c5da0 MLJ	258	static void __init nslu2_init(void)
435c5da0 MLJ	259	{
b7edc84a RW	260	uint8_t __iomem *f;
	261	int i;
	262
a7918f39 AZ	263	ixp4xx_sys_init();
a7918f39 AZ	264
3dfaf7a6 MM	265	nslu2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
	266	nslu2_flash_resource.end =
	267	IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
	268
b2e63555	269	gpiod_add_lookup_table(&nslu2_i2c_gpiod_table);
e28067d5 RW	270	i2c_register_board_info(0, nslu2_i2c_board_info,
	271	ARRAY_SIZE(nslu2_i2c_board_info));
	272
cc50a0df MLJ	273	/*
cc50a0df MLJ	274	* This is only useful on a modified machine, but it is valuable
e22b04fb RW	275	* to have it first in order to see debug messages, and so that
	276	* it does not get removed if platform_add_devices fails!
	277	*/
	278	(void)platform_device_register(&nslu2_uart);
	279
a7918f39	280	platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
b7edc84a	281
0929ac3e RW	282	pm_power_off = nslu2_power_off;
	283
	284	if (request_irq(gpio_to_irq(NSLU2_RB_GPIO), &nslu2_reset_handler,
1ee6564d	285	IRQF_TRIGGER_LOW, "NSLU2 reset button", NULL) < 0) {
0929ac3e RW	286
	287	printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
	288	gpio_to_irq(NSLU2_RB_GPIO));
	289	}
	290
	291	if (request_irq(gpio_to_irq(NSLU2_PB_GPIO), &nslu2_power_handler,
1ee6564d	292	IRQF_TRIGGER_HIGH, "NSLU2 power button", NULL) < 0) {
0929ac3e RW	293
	294	printk(KERN_DEBUG "Power Button IRQ %d not available\n",
	295	gpio_to_irq(NSLU2_PB_GPIO));
	296	}
b7edc84a RW	297
	298	/*
	299	* Map in a portion of the flash and read the MAC address.
	300	* Since it is stored in BE in the flash itself, we need to
	301	* byteswap it if we're in LE mode.
	302	*/
	303	f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x40000);
	304	if (f) {
	305	for (i = 0; i < 6; i++)
	306	#ifdef __ARMEB__
	307	nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + i);
	308	#else
	309	nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + (i^3));
	310	#endif
	311	iounmap(f);
	312	}
e174961c JB	313	printk(KERN_INFO "NSLU2: Using MAC address %pM for port 0\n",
e174961c JB	314	nslu2_plat_eth[0].hwaddr);
b7edc84a	315
a7918f39 AZ	316	}
	317
	318	MACHINE_START(NSLU2, "Linksys NSLU2")
	319	/* Maintainer: www.nslu2-linux.org */
e022c729	320	.atag_offset = 0x100,
a7918f39	321	.map_io = ixp4xx_map_io,
f449588c	322	.init_early = ixp4xx_init_early,
a7918f39	323	.init_irq = ixp4xx_init_irq,
6bb27d73	324	.init_time = nslu2_timer_init,
a7918f39	325	.init_machine = nslu2_init,
7553ee77 NP	326	#if defined(CONFIG_PCI)
	327	.dma_zone_size = SZ_64M,
	328	#endif
d1b860fb	329	.restart = ixp4xx_restart,
a7918f39	330	MACHINE_END