Commit d7919589 authored by Seungwon Jeon's avatar Seungwon Jeon Committed by Kukjin Kim
Browse files

ARM: EXYNOS4: Add platform device for dwmci driver 



This patch adds platform device for Synopsys DesignWare
Multimedia Card Interface driver.

Signed-off-by: default avatarSeungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent 3a1a2b9e

arch/arm/mach-exynos4/Kconfig

+5 −0
Original line number Diff line number Diff line
@@ -36,6 +36,11 @@ config EXYNOS4_DEV_SYSMMU 
	help

	  Common setup code for SYSTEM MMU in EXYNOS4



config EXYNOS4_DEV_DWMCI

	bool

	help

	  Compile in platform device definitions for DWMCI



config EXYNOS4_SETUP_I2C1

	bool

	help

arch/arm/mach-exynos4/Makefile

+1 −0
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@@ -38,6 +38,7 @@ obj-y += dev-audio.o 
obj-$(CONFIG_EXYNOS4_DEV_AHCI)		+= dev-ahci.o

obj-$(CONFIG_EXYNOS4_DEV_PD)		+= dev-pd.o

obj-$(CONFIG_EXYNOS4_DEV_SYSMMU)	+= dev-sysmmu.o

obj-$(CONFIG_EXYNOS4_DEV_DWMCI)	+= dev-dwmci.o



obj-$(CONFIG_EXYNOS4_SETUP_FIMC)	+= setup-fimc.o

obj-$(CONFIG_EXYNOS4_SETUP_I2C1)	+= setup-i2c1.o

arch/arm/mach-exynos4/dev-dwmci.c

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/*

 * linux/arch/arm/mach-exynos4/dev-dwmci.c

 *

 * Copyright (c) 2011 Samsung Electronics Co., Ltd.

 *		http://www.samsung.com

 *

 * Platform device for Synopsys DesignWare Mobile Storage IP

 *

 * 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.

 */



#include <linux/kernel.h>

#include <linux/dma-mapping.h>

#include <linux/platform_device.h>

#include <linux/interrupt.h>

#include <linux/mmc/dw_mmc.h>



#include <plat/devs.h>



#include <mach/map.h>



static int exynos4_dwmci_get_bus_wd(u32 slot_id)

{

	return 4;

}



static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data)

{

	return 0;

}



static struct resource exynos4_dwmci_resource[] = {

	[0] = {

		.start	= EXYNOS4_PA_DWMCI,

		.end	= EXYNOS4_PA_DWMCI + SZ_4K - 1,

		.flags	= IORESOURCE_MEM,

	},

	[1] = {

		.start	= IRQ_DWMCI,

		.end	= IRQ_DWMCI,

		.flags	= IORESOURCE_IRQ,

	}

};



static struct dw_mci_board exynos4_dwci_pdata = {

	.num_slots			= 1,

	.quirks				= DW_MCI_QUIRK_BROKEN_CARD_DETECTION,

	.bus_hz				= 80 * 1000 * 1000,

	.detect_delay_ms	= 200,

	.init				= exynos4_dwmci_init,

	.get_bus_wd			= exynos4_dwmci_get_bus_wd,

};



static u64 exynos4_dwmci_dmamask = DMA_BIT_MASK(32);



struct platform_device exynos4_device_dwmci = {

	.name		= "dw_mmc",

	.id		= -1,

	.num_resources	= ARRAY_SIZE(exynos4_dwmci_resource),

	.resource	= exynos4_dwmci_resource,

	.dev		= {

		.dma_mask		= &exynos4_dwmci_dmamask,

		.coherent_dma_mask	= DMA_BIT_MASK(32),

		.platform_data	= &exynos4_dwci_pdata,

	},

};



void __init exynos4_dwmci_set_platdata(struct dw_mci_board *pd)

{

	struct dw_mci_board *npd;



	npd = s3c_set_platdata(pd, sizeof(struct dw_mci_board),

			&exynos4_device_dwmci);



	if (!npd->init)

		npd->init = exynos4_dwmci_init;

	if (!npd->get_bus_wd)

		npd->get_bus_wd = exynos4_dwmci_get_bus_wd;

}

arch/arm/mach-exynos4/include/mach/dwmci.h

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/* linux/arch/arm/mach-exynos4/include/mach/dwmci.h

 *

 * Copyright (c) 2011 Samsung Electronics Co., Ltd.

 *		http://www.samsung.com/

 *

 * Synopsys DesignWare Mobile Storage for EXYNOS4210

 *

 * 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.

 */



#ifndef __ASM_ARM_ARCH_DWMCI_H

#define __ASM_ARM_ARCH_DWMCI_H __FILE__



#include <linux/mmc/dw_mmc.h>



extern void exynos4_dwmci_set_platdata(struct dw_mci_board *pd);



#endif /* __ASM_ARM_ARCH_DWMCI_H */

arch/arm/mach-exynos4/include/mach/irqs.h

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@@ -78,6 +78,7 @@ 
#define IRQ_HSMMC1		IRQ_SPI(74)

#define IRQ_HSMMC2		IRQ_SPI(75)

#define IRQ_HSMMC3		IRQ_SPI(76)

#define IRQ_DWMCI		IRQ_SPI(77)



#define IRQ_MIPICSI0		IRQ_SPI(78)