arch/arm/mach-omap/board-netstar.c

/*
 * Modified from board-generic.c
 *
 * Copyright (C) 2004 2N Telekomunikace, Ladislav Michl <michl@2n.cz>
 *
 * Code for Netstar OMAP board.
 *
 * 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/device.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/notifier.h>
#include <linux/reboot.h>

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

#include <asm/arch/gpio.h>
#include <asm/arch/mux.h>
#include <asm/arch/usb.h>

#include "common.h"

extern void __init omap_init_time(void);
extern int omap_gpio_init(void);

static struct resource netstar_smc91x_resources[] = {
	[0] = {
		.start	= OMAP_CS1_PHYS + 0x300,
		.end	= OMAP_CS1_PHYS + 0x300 + 16,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= OMAP_GPIO_IRQ(8),
		.end	= OMAP_GPIO_IRQ(8),
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device netstar_smc91x_device = {
	.name		= "smc91x",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(netstar_smc91x_resources),
	.resource	= netstar_smc91x_resources,
};

static struct platform_device *netstar_devices[] __initdata = {
	&netstar_smc91x_device,
};

static void __init netstar_init_irq(void)
{
	omap_init_irq();
	omap_gpio_init();
}

static void __init netstar_init(void)
{
	/* green LED */
	omap_request_gpio(4);
	omap_set_gpio_direction(4, 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);
	omap_set_gpio_edge_ctrl(8, OMAP_GPIO_RISING_EDGE);

	omap_request_gpio(12);
	omap_request_gpio(13);
	omap_request_gpio(14);
	omap_request_gpio(15);
	omap_set_gpio_edge_ctrl(12, OMAP_GPIO_FALLING_EDGE);
	omap_set_gpio_edge_ctrl(13, OMAP_GPIO_FALLING_EDGE);
	omap_set_gpio_edge_ctrl(14, OMAP_GPIO_FALLING_EDGE);
	omap_set_gpio_edge_ctrl(15, OMAP_GPIO_FALLING_EDGE);

	platform_add_devices(netstar_devices, ARRAY_SIZE(netstar_devices));

	/* Switch on green LED */
	omap_set_gpio_dataout(4, 0);
	/* Switch off red LED */
	omap_writeb(0x00, OMAP_LPG1_PMR);	/* Disable clock */
	omap_writeb(0x80, OMAP_LPG1_LCR);
}

static int __initdata omap_serial_ports[OMAP_MAX_NR_PORTS] = {1, 1, 1};

static void __init netstar_map_io(void)
{
	omap_map_io();
	omap_serial_init(omap_serial_ports);
}

#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;

	/* Switch off green LED */
	omap_set_gpio_dataout(4, 1);
	/* Flash red 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 netstar_late_init(void)
{
	/* TODO: Setup front panel switch here */

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

	return 0;
}

postcore_initcall(netstar_late_init);

MACHINE_START(NETSTAR, "NetStar OMAP5910")
	MAINTAINER("Ladislav Michl <michl@2n.cz>")
	BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000)
	BOOT_PARAMS(0x10000100)
	MAPIO(netstar_map_io)
	INITIRQ(netstar_init_irq)
	INIT_MACHINE(netstar_init)
	.timer = &omap_timer,
MACHINE_END