linux-vybrid_public/arch/mips/alchemy/devboards/pb1200/platform.c

/*
 * Pb1200/DBAu1200 board platform device registration
 *
 * Copyright (C) 2008 MontaVista Software Inc. <source@mvista.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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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/dma-mapping.h>
#include <linux/init.h>
#include <linux/leds.h>
#include <linux/platform_device.h>
#include <linux/smc91x.h>

#include <asm/mach-au1x00/au1xxx.h>
#include <asm/mach-au1x00/au1100_mmc.h>
#include <asm/mach-au1x00/au1xxx_dbdma.h>
#include <asm/mach-db1x00/bcsr.h>

#include "../platform.h"

static int mmc_activity;

static void pb1200mmc0_set_power(void *mmc_host, int state)
{
	if (state)
		bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD0PWR);
	else
		bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD0PWR, 0);

	msleep(1);
}

static int pb1200mmc0_card_readonly(void *mmc_host)
{
	return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD0WP) ? 1 : 0;
}

static int pb1200mmc0_card_inserted(void *mmc_host)
{
	return (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD0INSERT) ? 1 : 0;
}

static void pb1200_mmcled_set(struct led_classdev *led,
			enum led_brightness brightness)
{
	if (brightness != LED_OFF) {
		if (++mmc_activity == 1)
			bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED0, 0);
	} else {
		if (--mmc_activity == 0)
			bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED0);
	}
}

static struct led_classdev pb1200mmc_led = {
	.brightness_set	= pb1200_mmcled_set,
};

static void pb1200mmc1_set_power(void *mmc_host, int state)
{
	if (state)
		bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD1PWR);
	else
		bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD1PWR, 0);

	msleep(1);
}

static int pb1200mmc1_card_readonly(void *mmc_host)
{
	return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD1WP) ? 1 : 0;
}

static int pb1200mmc1_card_inserted(void *mmc_host)
{
	return (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD1INSERT) ? 1 : 0;
}

const struct au1xmmc_platform_data au1xmmc_platdata[2] = {
	[0] = {
		.set_power	= pb1200mmc0_set_power,
		.card_inserted	= pb1200mmc0_card_inserted,
		.card_readonly	= pb1200mmc0_card_readonly,
		.cd_setup	= NULL,		/* use poll-timer in driver */
		.led		= &pb1200mmc_led,
	},
	[1] = {
		.set_power	= pb1200mmc1_set_power,
		.card_inserted	= pb1200mmc1_card_inserted,
		.card_readonly	= pb1200mmc1_card_readonly,
		.cd_setup	= NULL,		/* use poll-timer in driver */
		.led		= &pb1200mmc_led,
	},
};

static struct resource ide_resources[] = {
	[0] = {
		.start	= IDE_PHYS_ADDR,
		.end 	= IDE_PHYS_ADDR + IDE_PHYS_LEN - 1,
		.flags	= IORESOURCE_MEM
	},
	[1] = {
		.start	= IDE_INT,
		.end	= IDE_INT,
		.flags	= IORESOURCE_IRQ
	},
	[2] = {
		.start	= AU1200_DSCR_CMD0_DMA_REQ1,
		.end	= AU1200_DSCR_CMD0_DMA_REQ1,
		.flags	= IORESOURCE_DMA,
	},
};

static u64 ide_dmamask = DMA_BIT_MASK(32);

static struct platform_device ide_device = {
	.name		= "au1200-ide",
	.id		= 0,
	.dev = {
		.dma_mask 		= &ide_dmamask,
		.coherent_dma_mask	= DMA_BIT_MASK(32),
	},
	.num_resources	= ARRAY_SIZE(ide_resources),
	.resource	= ide_resources
};

static struct smc91x_platdata smc_data = {
	.flags	= SMC91X_NOWAIT | SMC91X_USE_16BIT,
	.leda	= RPC_LED_100_10,
	.ledb	= RPC_LED_TX_RX,
};

static struct resource smc91c111_resources[] = {
	[0] = {
		.name	= "smc91x-regs",
		.start	= SMC91C111_PHYS_ADDR,
		.end	= SMC91C111_PHYS_ADDR + 0xf,
		.flags	= IORESOURCE_MEM
	},
	[1] = {
		.start	= SMC91C111_INT,
		.end	= SMC91C111_INT,
		.flags	= IORESOURCE_IRQ
	},
};

static struct platform_device smc91c111_device = {
	.dev	= {
		.platform_data	= &smc_data,
	},
	.name		= "smc91x",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(smc91c111_resources),
	.resource	= smc91c111_resources
};

static struct platform_device *board_platform_devices[] __initdata = {
	&ide_device,
	&smc91c111_device
};

static int __init board_register_devices(void)
{
	int swapped;

	db1x_register_pcmcia_socket(
		AU1000_PCMCIA_ATTR_PHYS_ADDR,
		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
		AU1000_PCMCIA_MEM_PHYS_ADDR,
		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
		AU1000_PCMCIA_IO_PHYS_ADDR,
		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
		PB1200_PC0_INT, PB1200_PC0_INSERT_INT,
		/*PB1200_PC0_STSCHG_INT*/0, PB1200_PC0_EJECT_INT, 0);

	db1x_register_pcmcia_socket(
		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008000000,
		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008400000 - 1,
		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x008000000,
		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x008400000 - 1,
		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x008000000,
		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x008010000 - 1,
		PB1200_PC1_INT, PB1200_PC1_INSERT_INT,
		/*PB1200_PC1_STSCHG_INT*/0, PB1200_PC1_EJECT_INT, 1);

	swapped = bcsr_read(BCSR_STATUS) &  BCSR_STATUS_DB1200_SWAPBOOT;
	db1x_register_norflash(128 * 1024 * 1024, 2, swapped);

	return platform_add_devices(board_platform_devices,
				    ARRAY_SIZE(board_platform_devices));
}
device_initcall(board_register_devices);