board-innovator.c

h内核

/*
 * linux/arch/arm/mach-omap/board-innovator.c
 *
 * Board specific inits for OMAP-1510 and OMAP-1610 Innovator
 *
 * Copyright (C) 2001 RidgeRun, Inc.
 * Author: Greg Lonnon <[e-mail]>
 *
 * Copyright (C) 2002 MontaVista Software, Inc.
 *
 * Separated FPGA interrupts from innovator1510.c and cleaned up for 2.6
 * Copyright (C) 2004 Nokia Corporation by Tony Lindrgen <[e-mail]>
 *
 * 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/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/delay.h>

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

#include <asm/arch/clocks.h>
#include <asm/arch/gpio.h>
#include <asm/arch/fpga.h>
#include <asm/arch/usb.h>

#include "common.h"

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

#ifdef CONFIG_ARCH_OMAP1510

/* Only FPGA needs to be mapped here. All others are done with ioremap */
static struct map_desc innovator1510_io_desc[] __initdata = {
{ OMAP1510_FPGA_BASE, OMAP1510_FPGA_START, OMAP1510_FPGA_SIZE,
	MT_DEVICE },
};

static struct resource innovator1510_smc91x_resources[] = {
	[0] = {
		.start	= OMAP1510_FPGA_ETHR_START,	/* Physical */
		.end	= OMAP1510_FPGA_ETHR_START + 16,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= OMAP1510_INT_ETHER,
		.end	= OMAP1510_INT_ETHER,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device innovator1510_smc91x_device = {
	.name		= "smc91x",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(innovator1510_smc91x_resources),
	.resource	= innovator1510_smc91x_resources,
};

static struct platform_device *innovator1510_devices[] __initdata = {
	&innovator1510_smc91x_device,
};

#endif /* CONFIG_ARCH_OMAP1510 */

#ifdef CONFIG_ARCH_OMAP16XX

static struct resource innovator1610_smc91x_resources[] = {
	[0] = {
		.start	= INNOVATOR1610_ETHR_START,		/* Physical */
		.end	= INNOVATOR1610_ETHR_START + SZ_4K,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= OMAP_GPIO_IRQ(0),
		.end	= OMAP_GPIO_IRQ(0),
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device innovator1610_smc91x_device = {
	.name		= "smc91x",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(innovator1610_smc91x_resources),
	.resource	= innovator1610_smc91x_resources,
};

static struct platform_device *innovator1610_devices[] __initdata = {
	&innovator1610_smc91x_device,
};

#endif /* CONFIG_ARCH_OMAP16XX */

static void __init innovator_init_smc91x(void)
{
	if (cpu_is_omap1510()) {
		fpga_write(fpga_read(OMAP1510_FPGA_RST) & ~1,
			   OMAP1510_FPGA_RST);
		udelay(750);
	} else {
		if ((omap_request_gpio(0)) < 0) {
			printk("Error requesting gpio 0 for smc91x irq\n");
			return;
		}
		omap_set_gpio_edge_ctrl(0, OMAP_GPIO_RISING_EDGE);
	}
}

void innovator_init_irq(void)
{
	omap_init_irq();
	omap_gpio_init();
#ifdef CONFIG_ARCH_OMAP1510
	if (cpu_is_omap1510()) {
		omap1510_fpga_init_irq();
	}
#endif
	innovator_init_smc91x();
}

#ifdef CONFIG_ARCH_OMAP1510
static struct omap_usb_config innovator1510_usb_config __initdata = {
	/* for bundled non-standard host and peripheral cables */
	.hmc_mode	= 4,

	.register_host	= 1,
	.pins[1]	= 6,
	.pins[2]	= 6,		/* Conflicts with UART2 */

	.register_dev	= 1,
	.pins[0]	= 2,
};
#endif

#ifdef CONFIG_ARCH_OMAP16XX
static struct omap_usb_config h2_usb_config __initdata = {
	/* usb1 has a Mini-AB port and external isp1301 transceiver */
	.otg		= 2,

#ifdef	CONFIG_USB_GADGET_OMAP
	.hmc_mode	= 19,	// 0:host(off) 1:dev|otg 2:disabled
	// .hmc_mode	= 21,	// 0:host(off) 1:dev(loopback) 2:host(loopback)
#elif	defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
	/* NONSTANDARD CABLE NEEDED (B-to-Mini-B) */
	.hmc_mode	= 20,	// 1:dev|otg(off) 1:host 2:disabled
#endif

	.pins[1]	= 3,
};
#endif

static struct omap_board_config_kernel innovator_config[] = {
	{ OMAP_TAG_USB,         NULL },
};

static void __init innovator_init(void)
{
#ifdef CONFIG_ARCH_OMAP1510
	if (cpu_is_omap1510()) {
		platform_add_devices(innovator1510_devices, ARRAY_SIZE(innovator1510_devices));
	}
#endif
#ifdef CONFIG_ARCH_OMAP16XX
	if (!cpu_is_omap1510()) {
		platform_add_devices(innovator1610_devices, ARRAY_SIZE(innovator1610_devices));
	}
#endif

#ifdef CONFIG_ARCH_OMAP1510
	if (cpu_is_omap1510())
		innovator_config[0].data = &innovator1510_usb_config;
#endif
#ifdef CONFIG_ARCH_OMAP16XX
	if (cpu_is_omap1610())
		innovator_config[0].data = &h2_usb_config;
#endif
	omap_board_config = innovator_config;
	omap_board_config_size = ARRAY_SIZE(innovator_config);
}

static void __init innovator_map_io(void)
{
	omap_map_io();

#ifdef CONFIG_ARCH_OMAP1510
	if (cpu_is_omap1510()) {
		iotable_init(innovator1510_io_desc, ARRAY_SIZE(innovator1510_io_desc));
		udelay(10);	/* Delay needed for FPGA */

		/* Dump the Innovator FPGA rev early - useful info for support. */
		printk("Innovator FPGA Rev %d.%d Board Rev %d\n",
		       fpga_read(OMAP1510_FPGA_REV_HIGH),
		       fpga_read(OMAP1510_FPGA_REV_LOW),
		       fpga_read(OMAP1510_FPGA_BOARD_REV));
	}
#endif
	omap_serial_init(innovator_serial_ports);
}

MACHINE_START(OMAP_INNOVATOR, "TI-Innovator")
	MAINTAINER("MontaVista Software, Inc.")
	BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000)
	BOOT_PARAMS(0x10000100)
	MAPIO(innovator_map_io)
	INITIRQ(innovator_init_irq)
	INIT_MACHINE(innovator_init)
	.timer		= &omap_timer,
MACHINE_END