linux-vybrid_public/arch/arm/mach-shmobile/board-kota2.c

/*
 * kota2 board support
 *
 * Copyright (C) 2011  Renesas Solutions Corp.
 * Copyright (C) 2011  Magnus Damm
 * Copyright (C) 2010  Takashi Yoshii <yoshii.takashi.zj@renesas.com>
 * Copyright (C) 2009  Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
 *
 * 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; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/smsc911x.h>
#include <linux/gpio.h>
#include <mach/hardware.h>
#include <mach/sh73a0.h>
#include <mach/common.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <asm/hardware/gic.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/traps.h>

static struct resource smsc9220_resources[] = {
	[0] = {
		.start		= 0x14000000, /* CS5A */
		.end		= 0x140000ff, /* A1->A7 */
		.flags		= IORESOURCE_MEM,
	},
	[1] = {
		.start		= gic_spi(33), /* PINTA2 @ PORT144 */
		.flags		= IORESOURCE_IRQ,
	},
};

static struct smsc911x_platform_config smsc9220_platdata = {
	.flags		= SMSC911X_USE_32BIT, /* 32-bit SW on 16-bit HW bus */
	.phy_interface	= PHY_INTERFACE_MODE_MII,
	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
	.irq_type	= SMSC911X_IRQ_TYPE_PUSH_PULL,
};

static struct platform_device eth_device = {
	.name		= "smsc911x",
	.id		= 0,
	.dev  = {
		.platform_data = &smsc9220_platdata,
	},
	.resource	= smsc9220_resources,
	.num_resources	= ARRAY_SIZE(smsc9220_resources),
};

static struct platform_device *kota2_devices[] __initdata = {
	&eth_device,
};

static struct map_desc kota2_io_desc[] __initdata = {
	/* create a 1:1 entity map for 0xe6xxxxxx
	 * used by CPGA, INTC and PFC.
	 */
	{
		.virtual	= 0xe6000000,
		.pfn		= __phys_to_pfn(0xe6000000),
		.length		= 256 << 20,
		.type		= MT_DEVICE_NONSHARED
	},
};

static void __init kota2_map_io(void)
{
	iotable_init(kota2_io_desc, ARRAY_SIZE(kota2_io_desc));

	/* setup early devices and console here as well */
	sh73a0_add_early_devices();
	shmobile_setup_console();
}

#define PINTER0A	0xe69000a0
#define PINTCR0A	0xe69000b0

void __init kota2_init_irq(void)
{
	sh73a0_init_irq();

	/* setup PINT: enable PINTA2 as active low */
	__raw_writel(1 << 29, PINTER0A);
	__raw_writew(2 << 10, PINTCR0A);
}

static void __init kota2_init(void)
{
	sh73a0_pinmux_init();

	/* SCIFA2 (UART2) */
	gpio_request(GPIO_FN_SCIFA2_TXD1, NULL);
	gpio_request(GPIO_FN_SCIFA2_RXD1, NULL);
	gpio_request(GPIO_FN_SCIFA2_RTS1_, NULL);
	gpio_request(GPIO_FN_SCIFA2_CTS1_, NULL);

	/* SMSC911X */
	gpio_request(GPIO_FN_D0_NAF0, NULL);
	gpio_request(GPIO_FN_D1_NAF1, NULL);
	gpio_request(GPIO_FN_D2_NAF2, NULL);
	gpio_request(GPIO_FN_D3_NAF3, NULL);
	gpio_request(GPIO_FN_D4_NAF4, NULL);
	gpio_request(GPIO_FN_D5_NAF5, NULL);
	gpio_request(GPIO_FN_D6_NAF6, NULL);
	gpio_request(GPIO_FN_D7_NAF7, NULL);
	gpio_request(GPIO_FN_D8_NAF8, NULL);
	gpio_request(GPIO_FN_D9_NAF9, NULL);
	gpio_request(GPIO_FN_D10_NAF10, NULL);
	gpio_request(GPIO_FN_D11_NAF11, NULL);
	gpio_request(GPIO_FN_D12_NAF12, NULL);
	gpio_request(GPIO_FN_D13_NAF13, NULL);
	gpio_request(GPIO_FN_D14_NAF14, NULL);
	gpio_request(GPIO_FN_D15_NAF15, NULL);
	gpio_request(GPIO_FN_CS5A_, NULL);
	gpio_request(GPIO_FN_WE0__FWE, NULL);
	gpio_request(GPIO_PORT144, NULL); /* PINTA2 */
	gpio_direction_input(GPIO_PORT144);
	gpio_request(GPIO_PORT145, NULL); /* RESET */
	gpio_direction_output(GPIO_PORT145, 1);

#ifdef CONFIG_CACHE_L2X0
	/* Early BRESP enable, Shared attribute override enable, 64K*8way */
	l2x0_init(__io(0xf0100000), 0x40460000, 0x82000fff);
#endif
	sh73a0_add_standard_devices();
	platform_add_devices(kota2_devices, ARRAY_SIZE(kota2_devices));
}

static void __init kota2_timer_init(void)
{
	sh73a0_clock_init();
	shmobile_timer.init();
	return;
}

struct sys_timer kota2_timer = {
	.init	= kota2_timer_init,
};

MACHINE_START(KOTA2, "kota2")
	.map_io		= kota2_map_io,
	.init_irq	= kota2_init_irq,
	.handle_irq	= shmobile_handle_irq_gic,
	.init_machine	= kota2_init,
	.timer		= &kota2_timer,
MACHINE_END