/*
* linux/drivers/mmc/host/omap.c
*
* Copyright (C) 2004 Nokia Corporation
* Written by Tuukka Tikkanen and Juha Yrjölä<juha.yrjola@nokia.com>
* Misc hacks here and there by Tony Lindgren <tony@atomide.com>
* Other hacks (DMA, SD, etc) by David Brownell
*
* 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/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
#include <linux/clk.h>
#include <linux/scatterlist.h>
#include <linux/i2c/tps65010.h>
#include <linux/slab.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <plat/board.h>
#include <plat/mmc.h>
#include <asm/gpio.h>
#include <plat/dma.h>
#include <plat/mux.h>
#include <plat/fpga.h>
#define OMAP_MMC_REG_CMD 0x00
#define OMAP_MMC_REG_ARGL 0x01
#define OMAP_MMC_REG_ARGH 0x02
#define OMAP_MMC_REG_CON 0x03
#define OMAP_MMC_REG_STAT 0x04
#define OMAP_MMC_REG_IE 0x05
#define OMAP_MMC_REG_CTO 0x06
#define OMAP_MMC_REG_DTO 0x07
#define OMAP_MMC_REG_DATA 0x08
#define OMAP_MMC_REG_BLEN 0x09
#define OMAP_MMC_REG_NBLK 0x0a
#define OMAP_MMC_REG_BUF 0x0b
#define OMAP_MMC_REG_SDIO 0x0d
#define OMAP_MMC_REG_REV 0x0f
#define OMAP_MMC_REG_RSP0 0x10
#define OMAP_MMC_REG_RSP1 0x11
#define OMAP_MMC_REG_RSP2 0x12
#define OMAP_MMC_REG_RSP3 0x13
#define OMAP_MMC_REG_RSP4 0x14
#define OMAP_MMC_REG_RSP5 0x15
#define OMAP_MMC_REG_RSP6 0x16
#define OMAP_MMC_REG_RSP7 0x17
#define OMAP_MMC_REG_IOSR 0x18
#define OMAP_MMC_REG_SYSC 0x19
#define OMAP_MMC_REG_SYSS 0x1a
#define OMAP_MMC_STAT_CARD_ERR (1 << 14)
#define OMAP_MMC_STAT_CARD_IRQ (1 << 13)
#define OMAP_MMC_STAT_OCR_BUSY (1 << 12)
#define OMAP_MMC_STAT_A_EMPTY (1 << 11)
#define OMAP_MMC_STAT_A_FULL (1 << 10)
#define OMAP_MMC_STAT_CMD_CRC (1 << 8)
#define OMAP_MMC_STAT_CMD_TOUT (1 << 7)
#define OMAP_MMC_STAT_DATA_CRC (1 << 6)
#define OMAP_MMC_STAT_DATA_TOUT (1 << 5)
#define OMAP_MMC_STAT_END_BUSY (1 << 4)
#define OMAP_MMC_STAT_END_OF_DATA (1 << 3)
#define OMAP_MMC_STAT_CARD_BUSY (1 << 2)
#define OMAP_MMC_STAT_END_OF_CMD (1 << 0)
#define OMAP_MMC_REG(host, reg) (OMAP_MMC_REG_##reg << (host)->reg_shift)
#define OMAP_MMC_READ(host, reg) __raw_readw((host)->virt_base + OMAP_MMC_REG(host, reg))
#define OMAP_MMC_WRITE(host, reg, val) __raw_writew((val), (host)->virt_base + OMAP_MMC_REG(host, reg))
/*
* Command types
*/
#define OMAP_MMC_CMDTYPE_BC 0
#define OMAP_MMC_CMDTYPE_BCR 1
#define OMAP_MMC_CMDTYPE_AC 2
#define OMAP_MMC_CMDTYPE_ADTC 3
#define DRIVER_NAME "mmci-omap"
/* Specifies how often in millisecs to poll for card status changes
* when the cover switch is open */
#define OMAP_MMC_COVER_POLL_DELAY 500
struct mmc_omap_host;
struct mmc_omap_slot {
int id;
unsigned int vdd;
u16 saved_con;
u16 bus_mode;
unsigned int fclk_freq;
unsigned powered:1;
struct tasklet_struct cover_tasklet;
struct timer_list cover_timer;
unsigned cover_open;
struct mmc_request *mrq;
struct mmc_omap_host *host;
s
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