Commit 865147c0 authored by Linus Torvalds's avatar Linus Torvalds

Merge bk://bk.arm.linux.org.uk/linux-2.6-mmc

into ppc970.osdl.org:/home/torvalds/v2.6/linux

Manual merge of arch/arm/Kconfig conflicts
parents f18badd1 55be7f8d
......@@ -664,6 +664,8 @@ source "drivers/misc/Kconfig"
source "drivers/usb/Kconfig"
source "drivers/mmc/Kconfig"
source "arch/arm/Kconfig.debug"
source "security/Kconfig"
......
......@@ -50,4 +50,5 @@ obj-$(CONFIG_ISDN) += isdn/
obj-$(CONFIG_MCA) += mca/
obj-$(CONFIG_EISA) += eisa/
obj-$(CONFIG_CPU_FREQ) += cpufreq/
obj-$(CONFIG_MMC) += mmc/
obj-y += firmware/
#
# MMC subsystem configuration
#
menu "MMC/SD Card support"
config MMC
tristate "MMC support"
help
MMC is the "multi-media card" bus protocol.
If you want MMC support, you should say Y here and also
to the specific driver for your MMC interface.
config MMC_DEBUG
bool "MMC debugging"
depends on MMC != n
help
This is an option for use by developers; most people should
say N here. This enables MMC core and driver debugging.
config MMC_BLOCK
tristate "MMC block device driver"
depends on MMC
default y
help
Say Y here to enable the MMC block device driver support.
This provides a block device driver, which you can use to
mount the filesystem. Almost everyone wishing MMC support
should say Y or M here.
config MMC_ARMMMCI
tristate "ARM AMBA Multimedia Card Interface support"
depends on ARM_AMBA && MMC
help
This selects the ARM(R) AMBA(R) PrimeCell Multimedia Card
Interface (PL180 and PL181) support. If you have an ARM(R)
platform with a Multimedia Card slot, say Y or M here.
If unsure, say N.
config MMC_PXA
tristate "Intel PXA255 Multimedia Card Interface support"
depends on ARCH_PXA && MMC
help
This selects the Intel(R) PXA(R) Multimedia card Interface.
If you have a PXA(R) platform with a Multimedia Card slot,
say Y or M here.
If unsure, say N.
endmenu
#
# Makefile for the kernel mmc device drivers.
#
#
# Core
#
obj-$(CONFIG_MMC) += mmc_core.o
#
# Media drivers
#
obj-$(CONFIG_MMC_BLOCK) += mmc_block.o
#
# Host drivers
#
obj-$(CONFIG_MMC_ARMMMCI) += mmci.o
obj-$(CONFIG_MMC_PXA) += pxamci.o
mmc_core-y := mmc.o mmc_queue.o mmc_sysfs.o
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/*
* linux/drivers/mmc/mmc.h
*
* Copyright (C) 2003 Russell King, All Rights Reserved.
*
* 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 _MMC_H
#define _MMC_H
/* core-internal functions */
void mmc_init_card(struct mmc_card *card, struct mmc_host *host);
int mmc_register_card(struct mmc_card *card);
void mmc_remove_card(struct mmc_card *card);
#endif
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/*
* linux/drivers/mmc/mmc_queue.c
*
* Copyright (C) 2003 Russell King, All Rights Reserved.
*
* 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/blkdev.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
#include "mmc_queue.h"
/*
* Prepare a MMC request. Essentially, this means passing the
* preparation off to the media driver. The media driver will
* create a mmc_io_request in req->special.
*/
static int mmc_prep_request(struct request_queue *q, struct request *req)
{
struct mmc_queue *mq = q->queuedata;
int ret = BLKPREP_KILL;
if (req->flags & REQ_SPECIAL) {
/*
* Special commands already have the command
* blocks already setup in req->special.
*/
BUG_ON(!req->special);
ret = BLKPREP_OK;
} else if (req->flags & (REQ_CMD | REQ_BLOCK_PC)) {
/*
* Block I/O requests need translating according
* to the protocol.
*/
ret = mq->prep_fn(mq, req);
} else {
/*
* Everything else is invalid.
*/
blk_dump_rq_flags(req, "MMC bad request");
}
if (ret == BLKPREP_OK)
req->flags |= REQ_DONTPREP;
return ret;
}
static int mmc_queue_thread(void *d)
{
struct mmc_queue *mq = d;
struct request_queue *q = mq->queue;
DECLARE_WAITQUEUE(wait, current);
/*
* Set iothread to ensure that we aren't put to sleep by
* the process freezing. We handle suspension ourselves.
*/
current->flags |= PF_MEMALLOC|PF_NOFREEZE;
daemonize("mmcqd");
spin_lock_irq(&current->sighand->siglock);
sigfillset(&current->blocked);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
mq->thread = current;
complete(&mq->thread_complete);
add_wait_queue(&mq->thread_wq, &wait);
do {
struct request *req = NULL;
spin_lock_irq(q->queue_lock);
set_current_state(TASK_INTERRUPTIBLE);
if (!blk_queue_plugged(q))
mq->req = req = elv_next_request(q);
spin_unlock(q->queue_lock);
if (!req) {
if (!mq->thread)
break;
schedule();
continue;
}
set_current_state(TASK_RUNNING);
mq->issue_fn(mq, req);
} while (1);
remove_wait_queue(&mq->thread_wq, &wait);
complete_and_exit(&mq->thread_complete, 0);
return 0;
}
/*
* Generic MMC request handler. This is called for any queue on a
* particular host. When the host is not busy, we look for a request
* on any queue on this host, and attempt to issue it. This may
* not be the queue we were asked to process.
*/
static void mmc_request(request_queue_t *q)
{
struct mmc_queue *mq = q->queuedata;
if (!mq->req)
wake_up(&mq->thread_wq);
}
/**
* mmc_init_queue - initialise a queue structure.
* @mq: mmc queue
* @card: mmc card to attach this queue
* @lock: queue lock
*
* Initialise a MMC card request queue.
*/
int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock)
{
u64 limit = BLK_BOUNCE_HIGH;
int ret;
if (card->host->dev->dma_mask && *card->host->dev->dma_mask)
limit = *card->host->dev->dma_mask;
mq->card = card;
mq->queue = blk_init_queue(mmc_request, lock);
if (!mq->queue)
return -ENOMEM;
blk_queue_prep_rq(mq->queue, mmc_prep_request);
blk_queue_bounce_limit(mq->queue, limit);
mq->queue->queuedata = mq;
mq->req = NULL;
init_completion(&mq->thread_complete);
init_waitqueue_head(&mq->thread_wq);
ret = kernel_thread(mmc_queue_thread, mq, CLONE_KERNEL);
if (ret < 0) {
blk_cleanup_queue(mq->queue);
} else {
wait_for_completion(&mq->thread_complete);
init_completion(&mq->thread_complete);
ret = 0;
}
return ret;
}
EXPORT_SYMBOL(mmc_init_queue);
void mmc_cleanup_queue(struct mmc_queue *mq)
{
mq->thread = NULL;
wake_up(&mq->thread_wq);
wait_for_completion(&mq->thread_complete);
blk_cleanup_queue(mq->queue);
mq->card = NULL;
}
EXPORT_SYMBOL(mmc_cleanup_queue);
#ifndef MMC_QUEUE_H
#define MMC_QUEUE_H
struct request;
struct task_struct;
struct mmc_queue {
struct mmc_card *card;
struct completion thread_complete;
wait_queue_head_t thread_wq;
struct task_struct *thread;
struct request *req;
int (*prep_fn)(struct mmc_queue *, struct request *);
int (*issue_fn)(struct mmc_queue *, struct request *);
void *data;
struct request_queue *queue;
};
struct mmc_io_request {
struct request *rq;
int num;
struct mmc_command selcmd; /* mmc_queue private */
struct mmc_command cmd[4]; /* max 4 commands */
};
extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *);
extern void mmc_cleanup_queue(struct mmc_queue *);
#endif
/*
* linux/drivers/mmc/mmc_sysfs.c
*
* Copyright (C) 2003 Russell King, All Rights Reserved.
*
* 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.
*
* MMC sysfs/driver model support.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
#include "mmc.h"
#define dev_to_mmc_card(d) container_of(d, struct mmc_card, dev)
#define to_mmc_driver(d) container_of(d, struct mmc_driver, drv)
static void mmc_release_card(struct device *dev)
{
struct mmc_card *card = dev_to_mmc_card(dev);
kfree(card);
}
/*
* This currently matches any MMC driver to any MMC card - drivers
* themselves make the decision whether to drive this card in their
* probe method.
*/
static int mmc_bus_match(struct device *dev, struct device_driver *drv)
{
return 1;
}
static int
mmc_bus_hotplug(struct device *dev, char **envp, int num_envp, char *buf,
int buf_size)
{
struct mmc_card *card = dev_to_mmc_card(dev);
char ccc[13];
int i = 0;
#define add_env(fmt,val) \
({ \
int len, ret = -ENOMEM; \
if (i < num_envp) { \
envp[i++] = buf; \
len = snprintf(buf, buf_size, fmt, val) + 1; \
buf_size -= len; \
buf += len; \
if (buf_size >= 0) \
ret = 0; \
} \
ret; \
})
for (i = 0; i < 12; i++)
ccc[i] = card->csd.cmdclass & (1 << i) ? '1' : '0';
ccc[12] = '\0';
i = 0;
add_env("MMC_CCC=%s", ccc);
add_env("MMC_MANFID=%03x", card->cid.manfid);
add_env("MMC_SLOT_NAME=%s", card->dev.bus_id);
return 0;
}
static int mmc_bus_suspend(struct device *dev, u32 state)
{
struct mmc_driver *drv = to_mmc_driver(dev->driver);
struct mmc_card *card = dev_to_mmc_card(dev);
int ret = 0;
if (dev->driver && drv->suspend)
ret = drv->suspend(card, state);
return ret;
}
static int mmc_bus_resume(struct device *dev)
{
struct mmc_driver *drv = to_mmc_driver(dev->driver);
struct mmc_card *card = dev_to_mmc_card(dev);
int ret = 0;
if (dev->driver && drv->resume)
ret = drv->resume(card);
return ret;
}
static struct bus_type mmc_bus_type = {
.name = "mmc",
.match = mmc_bus_match,
.hotplug = mmc_bus_hotplug,
.suspend = mmc_bus_suspend,
.resume = mmc_bus_resume,
};
static int mmc_drv_probe(struct device *dev)
{
struct mmc_driver *drv = to_mmc_driver(dev->driver);
struct mmc_card *card = dev_to_mmc_card(dev);
return drv->probe(card);
}
static int mmc_drv_remove(struct device *dev)
{
struct mmc_driver *drv = to_mmc_driver(dev->driver);
struct mmc_card *card = dev_to_mmc_card(dev);
drv->remove(card);
return 0;
}
/**
* mmc_register_driver - register a media driver
* @drv: MMC media driver
*/
int mmc_register_driver(struct mmc_driver *drv)
{
drv->drv.bus = &mmc_bus_type;
drv->drv.probe = mmc_drv_probe;
drv->drv.remove = mmc_drv_remove;
return driver_register(&drv->drv);
}
EXPORT_SYMBOL(mmc_register_driver);
/**
* mmc_unregister_driver - unregister a media driver
* @drv: MMC media driver
*/
void mmc_unregister_driver(struct mmc_driver *drv)
{
drv->drv.bus = &mmc_bus_type;
driver_unregister(&drv->drv);
}
EXPORT_SYMBOL(mmc_unregister_driver);
#define MMC_ATTR(name, fmt, args...) \
static ssize_t mmc_dev_show_##name (struct device *dev, char *buf) \
{ \
struct mmc_card *card = dev_to_mmc_card(dev); \
return sprintf(buf, fmt, args); \
} \
static DEVICE_ATTR(name, S_IRUGO, mmc_dev_show_##name, NULL)
MMC_ATTR(date, "%02d/%04d\n", card->cid.month, 1997 + card->cid.year);
MMC_ATTR(fwrev, "0x%x\n", card->cid.fwrev);
MMC_ATTR(hwrev, "0x%x\n", card->cid.hwrev);
MMC_ATTR(manfid, "0x%03x\n", card->cid.manfid);
MMC_ATTR(serial, "0x%06x\n", card->cid.serial);
MMC_ATTR(name, "%s\n", card->cid.prod_name);
static struct device_attribute *mmc_dev_attributes[] = {
&dev_attr_date,
&dev_attr_fwrev,
&dev_attr_hwrev,
&dev_attr_manfid,
&dev_attr_serial,
&dev_attr_name,
};
/*
* Internal function. Initialise a MMC card structure.
*/
void mmc_init_card(struct mmc_card *card, struct mmc_host *host)
{
memset(card, 0, sizeof(struct mmc_card));
card->host = host;
device_initialize(&card->dev);
card->dev.parent = card->host->dev;
card->dev.bus = &mmc_bus_type;
card->dev.release = mmc_release_card;
}
/*
* Internal function. Register a new MMC card with the driver model.
*/
int mmc_register_card(struct mmc_card *card)
{
int ret, i;
snprintf(card->dev.bus_id, sizeof(card->dev.bus_id),
"%s:%04x", card->host->host_name, card->rca);
ret = device_add(&card->dev);
if (ret == 0)
for (i = 0; i < ARRAY_SIZE(mmc_dev_attributes); i++)
device_create_file(&card->dev, mmc_dev_attributes[i]);
return ret;
}
/*
* Internal function. Unregister a new MMC card with the
* driver model, and (eventually) free it.
*/
void mmc_remove_card(struct mmc_card *card)
{
if (mmc_card_present(card))
device_del(&card->dev);
put_device(&card->dev);
}
static int __init mmc_init(void)
{
return bus_register(&mmc_bus_type);
}
static void __exit mmc_exit(void)
{
bus_unregister(&mmc_bus_type);
}
module_init(mmc_init);
module_exit(mmc_exit);
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/*
* linux/drivers/mmc/mmci.h - ARM PrimeCell MMCI PL180/1 driver
*
* Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved.
*
* 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.
*/
#define MMCIPOWER 0x000
#define MCI_PWR_OFF 0x00
#define MCI_PWR_UP 0x02
#define MCI_PWR_ON 0x03
#define MCI_OD (1 << 6)
#define MCI_ROD (1 << 7)
#define MMCICLOCK 0x004
#define MCI_CLK_ENABLE (1 << 8)
#define MCI_CLK_PWRSAVE (1 << 9)
#define MCI_CLK_BYPASS (1 << 10)
#define MMCIARGUMENT 0x008
#define MMCICOMMAND 0x00c
#define MCI_CPSM_RESPONSE (1 << 6)
#define MCI_CPSM_LONGRSP (1 << 7)
#define MCI_CPSM_INTERRUPT (1 << 8)
#define MCI_CPSM_PENDING (1 << 9)
#define MCI_CPSM_ENABLE (1 << 10)
#define MMCIRESPCMD 0x010
#define MMCIRESPONSE0 0x014
#define MMCIRESPONSE1 0x018
#define MMCIRESPONSE2 0x01c
#define MMCIRESPONSE3 0x020
#define MMCIDATATIMER 0x024
#define MMCIDATALENGTH 0x028
#define MMCIDATACTRL 0x02c
#define MCI_DPSM_ENABLE (1 << 0)
#define MCI_DPSM_DIRECTION (1 << 1)
#define MCI_DPSM_MODE (1 << 2)
#define MCI_DPSM_DMAENABLE (1 << 3)
#define MMCIDATACNT 0x030
#define MMCISTATUS 0x034
#define MCI_CMDCRCFAIL (1 << 0)
#define MCI_DATACRCFAIL (1 << 1)
#define MCI_CMDTIMEOUT (1 << 2)
#define MCI_DATATIMEOUT (1 << 3)
#define MCI_TXUNDERRUN (1 << 4)
#define MCI_RXOVERRUN (1 << 5)
#define MCI_CMDRESPEND (1 << 6)
#define MCI_CMDSENT (1 << 7)
#define MCI_DATAEND (1 << 8)
#define MCI_DATABLOCKEND (1 << 10)
#define MCI_CMDACTIVE (1 << 11)
#define MCI_TXACTIVE (1 << 12)
#define MCI_RXACTIVE (1 << 13)
#define MCI_TXFIFOHALFEMPTY (1 << 14)
#define MCI_RXFIFOHALFFULL (1 << 15)
#define MCI_TXFIFOFULL (1 << 16)
#define MCI_RXFIFOFULL (1 << 17)
#define MCI_TXFIFOEMPTY (1 << 18)
#define MCI_RXFIFOEMPTY (1 << 19)
#define MCI_TXDATAAVLBL (1 << 20)
#define MCI_RXDATAAVLBL (1 << 21)
#define MMCICLEAR 0x038
#define MCI_CMDCRCFAILCLR (1 << 0)
#define MCI_DATACRCFAILCLR (1 << 1)
#define MCI_CMDTIMEOUTCLR (1 << 2)
#define MCI_DATATIMEOUTCLR (1 << 3)
#define MCI_TXUNDERRUNCLR (1 << 4)
#define MCI_RXOVERRUNCLR (1 << 5)
#define MCI_CMDRESPENDCLR (1 << 6)
#define MCI_CMDSENTCLR (1 << 7)
#define MCI_DATAENDCLR (1 << 8)
#define MCI_DATABLOCKENDCLR (1 << 10)
#define MMCIMASK0 0x03c
#define MCI_CMDCRCFAILMASK (1 << 0)
#define MCI_DATACRCFAILMASK (1 << 1)
#define MCI_CMDTIMEOUTMASK (1 << 2)
#define MCI_DATATIMEOUTMASK (1 << 3)
#define MCI_TXUNDERRUNMASK (1 << 4)
#define MCI_RXOVERRUNMASK (1 << 5)
#define MCI_CMDRESPENDMASK (1 << 6)
#define MCI_CMDSENTMASK (1 << 7)
#define MCI_DATAENDMASK (1 << 8)
#define MCI_DATABLOCKENDMASK (1 << 10)
#define MCI_CMDACTIVEMASK (1 << 11)
#define MCI_TXACTIVEMASK (1 << 12)
#define MCI_RXACTIVEMASK (1 << 13)
#define MCI_TXFIFOHALFEMPTYMASK (1 << 14)
#define MCI_RXFIFOHALFFULLMASK (1 << 15)
#define MCI_TXFIFOFULLMASK (1 << 16)
#define MCI_RXFIFOFULLMASK (1 << 17)
#define MCI_TXFIFOEMPTYMASK (1 << 18)
#define MCI_RXFIFOEMPTYMASK (1 << 19)
#define MCI_TXDATAAVLBLMASK (1 << 20)
#define MCI_RXDATAAVLBLMASK (1 << 21)
#define MMCIMASK1 0x040
#define MMCIFIFOCNT 0x048
#define MMCIFIFO 0x080 /* to 0x0bc */
#define MCI_IRQMASK \
(MCI_CMDCRCFAIL|MCI_DATACRCFAIL|MCI_CMDTIMEOUT|MCI_DATATIMEOUT| \
MCI_TXUNDERRUN|MCI_RXOVERRUN|MCI_CMDRESPEND|MCI_CMDSENT| \
MCI_DATAEND|MCI_DATABLOCKEND)
#define MCI_IRQENABLE \
(MCI_CMDCRCFAILMASK|MCI_DATACRCFAILMASK|MCI_CMDTIMEOUTMASK| \
MCI_DATATIMEOUTMASK|MCI_TXUNDERRUNMASK|MCI_RXOVERRUNMASK| \
MCI_CMDRESPENDMASK|MCI_CMDSENTMASK|MCI_DATAENDMASK| \
MCI_DATABLOCKENDMASK)
#define MCI_FIFOSIZE 16
#define MCI_FIFOHALFSIZE (MCI_FIFOSIZE / 2)
struct clk;
struct mmci_host {
void *base;
struct mmc_request *mrq;
struct mmc_command *cmd;
struct mmc_data *data;
struct mmc_host *mmc;
struct clk *clk;
unsigned int data_xfered;
spinlock_t lock;
unsigned int mclk;
unsigned int cclk;
u32 pwr;
struct mmc_platform_data *plat;
struct timer_list timer;
unsigned int oldstat;
/* pio stuff */
void *buffer;
unsigned int size;
};
#define to_mmci_host(mmc) container_of(mmc, struct mmci_host, mmc)
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#undef MMC_STRPCL
#undef MMC_STAT
#undef MMC_CLKRT
#undef MMC_SPI
#undef MMC_CMDAT
#undef MMC_RESTO
#undef MMC_RDTO
#undef MMC_BLKLEN
#undef MMC_NOB
#undef MMC_PRTBUF
#undef MMC_I_MASK
#undef END_CMD_RES
#undef PRG_DONE
#undef DATA_TRAN_DONE
#undef MMC_I_REG
#undef MMC_CMD
#undef MMC_ARGH
#undef MMC_ARGL
#undef MMC_RES
#undef MMC_RXFIFO
#undef MMC_TXFIFO
#define MMC_STRPCL 0x0000
#define STOP_CLOCK (1 << 0)
#define START_CLOCK (2 << 0)
#define MMC_STAT 0x0004
#define STAT_END_CMD_RES (1 << 13)
#define STAT_PRG_DONE (1 << 12)
#define STAT_DATA_TRAN_DONE (1 << 11)
#define STAT_CLK_EN (1 << 8)
#define STAT_RECV_FIFO_FULL (1 << 7)
#define STAT_XMIT_FIFO_EMPTY (1 << 6)
#define STAT_RES_CRC_ERR (1 << 5)
#define STAT_SPI_READ_ERROR_TOKEN (1 << 4)
#define STAT_CRC_READ_ERROR (1 << 3)
#define STAT_CRC_WRITE_ERROR (1 << 2)
#define STAT_TIME_OUT_RESPONSE (1 << 1)
#define STAT_READ_TIME_OUT (1 << 0)
#define MMC_CLKRT 0x0008 /* 3 bit */
#define MMC_SPI 0x000c
#define SPI_CS_ADDRESS (1 << 3)
#define SPI_CS_EN (1 << 2)
#define CRC_ON (1 << 1)
#define SPI_EN (1 << 0)
#define MMC_CMDAT 0x0010
#define CMDAT_DMAEN (1 << 7)
#define CMDAT_INIT (1 << 6)
#define CMDAT_BUSY (1 << 5)
#define CMDAT_STREAM (1 << 4) /* 1 = stream */
#define CMDAT_WRITE (1 << 3) /* 1 = write */
#define CMDAT_DATAEN (1 << 2)
#define CMDAT_RESP_NONE (0 << 0)
#define CMDAT_RESP_SHORT (1 << 0)
#define CMDAT_RESP_R2 (2 << 0)
#define CMDAT_RESP_R3 (3 << 0)
#define MMC_RESTO 0x0014 /* 7 bit */
#define MMC_RDTO 0x0018 /* 16 bit */
#define MMC_BLKLEN 0x001c /* 10 bit */
#define MMC_NOB 0x0020 /* 16 bit */
#define MMC_PRTBUF 0x0024
#define BUF_PART_FULL (1 << 0)
#define MMC_I_MASK 0x0028
#define TXFIFO_WR_REQ (1 << 6)
#define RXFIFO_RD_REQ (1 << 5)
#define CLK_IS_OFF (1 << 4)
#define STOP_CMD (1 << 3)
#define END_CMD_RES (1 << 2)
#define PRG_DONE (1 << 1)
#define DATA_TRAN_DONE (1 << 0)
#define MMC_I_REG 0x002c
/* same as MMC_I_MASK */
#define MMC_CMD 0x0030
#define MMC_ARGH 0x0034 /* 16 bit */
#define MMC_ARGL 0x0038 /* 16 bit */
#define MMC_RES 0x003c /* 16 bit */
#define MMC_RXFIFO 0x0040 /* 8 bit */
#define MMC_TXFIFO 0x0044 /* 8 bit */
/*
* linux/include/asm-arm/mach/mmc.h
*/
#ifndef ASMARM_MACH_MMC_H
#define ASMARM_MACH_MMC_H
#include <linux/mmc/protocol.h>
struct mmc_platform_data {
unsigned int mclk; /* mmc base clock rate */
unsigned int ocr_mask; /* available voltages */
u32 (*translate_vdd)(struct device *, unsigned int);
unsigned int (*status)(struct device *);
};
#endif
/*
* linux/include/linux/mmc/card.h
*
* 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.
*
* Card driver specific definitions.
*/
#ifndef LINUX_MMC_CARD_H
#define LINUX_MMC_CARD_H
#include <linux/mmc/mmc.h>
struct mmc_cid {
unsigned int manfid;
unsigned int serial;
char prod_name[8];
unsigned char hwrev;
unsigned char fwrev;
unsigned char month;
unsigned char year;
};
struct mmc_csd {
unsigned char mmc_prot;
unsigned short cmdclass;
unsigned short tacc_clks;
unsigned int tacc_ns;
unsigned int max_dtr;
unsigned int read_blkbits;
unsigned int capacity;
};
struct mmc_host;
/*
* MMC device
*/
struct mmc_card {
struct list_head node; /* node in hosts devices list */
struct mmc_host *host; /* the host this device belongs to */
struct device dev; /* the device */
unsigned int rca; /* relative card address of device */
unsigned int state; /* (our) card state */
#define MMC_STATE_PRESENT (1<<0)
#define MMC_STATE_DEAD (1<<1)
struct mmc_cid cid; /* card identification */
struct mmc_csd csd; /* card specific */
};
#define mmc_card_dead(c) ((c)->state & MMC_STATE_DEAD)
#define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT)
#define mmc_card_name(c) ((c)->cid.prod_name)
#define mmc_card_id(c) ((c)->dev.bus_id)
#define mmc_list_to_card(l) container_of(l, struct mmc_card, node)
#define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev)
#define mmc_set_drvdata(c,d) dev_set_drvdata(&(c)->dev, d)
/*
* MMC device driver (e.g., Flash card, I/O card...)
*/
struct mmc_driver {
struct device_driver drv;
int (*probe)(struct mmc_card *);
void (*remove)(struct mmc_card *);
int (*suspend)(struct mmc_card *, u32);
int (*resume)(struct mmc_card *);
};
extern int mmc_register_driver(struct mmc_driver *);
extern void mmc_unregister_driver(struct mmc_driver *);
static inline int mmc_card_claim_host(struct mmc_card *card)
{
return __mmc_claim_host(card->host, card);
}
#define mmc_card_release_host(c) mmc_release_host((c)->host)
#endif
/*
* linux/include/linux/mmc/host.h
*
* 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.
*
* Host driver specific definitions.
*/
#ifndef LINUX_MMC_HOST_H
#define LINUX_MMC_HOST_H
#include <linux/mmc/mmc.h>
struct mmc_ios {
unsigned int clock; /* clock rate */
unsigned short vdd;
#define MMC_VDD_150 0
#define MMC_VDD_155 1
#define MMC_VDD_160 2
#define MMC_VDD_165 3
#define MMC_VDD_170 4
#define MMC_VDD_180 5
#define MMC_VDD_190 6
#define MMC_VDD_200 7
#define MMC_VDD_210 8
#define MMC_VDD_220 9
#define MMC_VDD_230 10
#define MMC_VDD_240 11
#define MMC_VDD_250 12
#define MMC_VDD_260 13
#define MMC_VDD_270 14
#define MMC_VDD_280 15
#define MMC_VDD_290 16
#define MMC_VDD_300 17
#define MMC_VDD_310 18
#define MMC_VDD_320 19
#define MMC_VDD_330 20
#define MMC_VDD_340 21
#define MMC_VDD_350 22
#define MMC_VDD_360 23
unsigned char bus_mode; /* command output mode */
#define MMC_BUSMODE_OPENDRAIN 1
#define MMC_BUSMODE_PUSHPULL 2
unsigned char power_mode; /* power supply mode */
#define MMC_POWER_OFF 0
#define MMC_POWER_UP 1
#define MMC_POWER_ON 2
};
struct mmc_host_ops {
void (*request)(struct mmc_host *host, struct mmc_request *req);
void (*set_ios)(struct mmc_host *host, struct mmc_ios *ios);
};
struct mmc_card;
struct device;
struct mmc_host {
struct device *dev;
struct mmc_host_ops *ops;
void *priv;
unsigned int f_min;
unsigned int f_max;
u32 ocr_avail;
char host_name[8];
/* private data */
struct mmc_ios ios; /* current io bus settings */
u32 ocr; /* the current OCR setting */
struct list_head cards; /* devices attached to this host */
wait_queue_head_t wq;
spinlock_t lock; /* card_busy lock */
struct mmc_card *card_busy; /* the MMC card claiming host */
struct mmc_card *card_selected; /* the selected MMC card */
struct work_struct detect;
};
extern struct mmc_host *mmc_alloc_host(int extra, struct device *);
extern int mmc_add_host(struct mmc_host *);
extern void mmc_remove_host(struct mmc_host *);
extern void mmc_free_host(struct mmc_host *);
#define mmc_priv(x) ((void *)((x) + 1))
#define mmc_dev(x) ((x)->dev)
extern int mmc_suspend_host(struct mmc_host *, u32);
extern int mmc_resume_host(struct mmc_host *);
extern void mmc_detect_change(struct mmc_host *);
extern void mmc_request_done(struct mmc_host *, struct mmc_request *);
#endif
/*
* linux/include/linux/mmc/mmc.h
*
* 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 MMC_H
#define MMC_H
#include <linux/list.h>
#include <linux/interrupt.h>
#include <linux/device.h>
struct request;
struct mmc_data;
struct mmc_request;
struct mmc_command {
u32 opcode;
u32 arg;
u32 resp[4];
unsigned int flags; /* expected response type */
#define MMC_RSP_NONE (0 << 0)
#define MMC_RSP_SHORT (1 << 0)
#define MMC_RSP_LONG (2 << 0)
#define MMC_RSP_MASK (3 << 0)
#define MMC_RSP_CRC (1 << 3) /* expect valid crc */
#define MMC_RSP_BUSY (1 << 4) /* card may send busy */
unsigned int retries; /* max number of retries */
unsigned int error; /* command error */
#define MMC_ERR_NONE 0
#define MMC_ERR_TIMEOUT 1
#define MMC_ERR_BADCRC 2
#define MMC_ERR_FIFO 3
#define MMC_ERR_FAILED 4
#define MMC_ERR_INVALID 5
struct mmc_data *data; /* data segment associated with cmd */
struct mmc_request *mrq; /* assoicated request */
};
struct mmc_data {
unsigned int timeout_ns; /* data timeout (in ns, max 80ms) */
unsigned int timeout_clks; /* data timeout (in clocks) */
unsigned int blksz_bits; /* data block size */
unsigned int blocks; /* number of blocks */
struct request *req; /* request structure */
unsigned int error; /* data error */
unsigned int flags;
#define MMC_DATA_WRITE (1 << 8)
#define MMC_DATA_READ (1 << 9)
#define MMC_DATA_STREAM (1 << 10)
unsigned int bytes_xfered;
struct mmc_command *stop; /* stop command */
struct mmc_request *mrq; /* assoicated request */
};
struct mmc_request {
struct mmc_command *cmd;
struct mmc_data *data;
struct mmc_command *stop;
void *done_data; /* completion data */
void (*done)(struct mmc_request *);/* completion function */
};
struct mmc_host;
struct mmc_card;
extern int mmc_wait_for_req(struct mmc_host *, struct mmc_request *);
extern int mmc_wait_for_cmd(struct mmc_host *, struct mmc_command *, int);
extern int __mmc_claim_host(struct mmc_host *host, struct mmc_card *card);
static inline void mmc_claim_host(struct mmc_host *host)
{
__mmc_claim_host(host, (struct mmc_card *)-1);
}
extern void mmc_release_host(struct mmc_host *host);
#endif
/*
* Header for MultiMediaCard (MMC)
*
* Copyright 2002 Hewlett-Packard Company
*
* Use consistent with the GNU GPL is permitted,
* provided that this copyright notice is
* preserved in its entirety in all copies and derived works.
*
* HEWLETT-PACKARD COMPANY MAKES NO WARRANTIES, EXPRESSED OR IMPLIED,
* AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS
* FITNESS FOR ANY PARTICULAR PURPOSE.
*
* Many thanks to Alessandro Rubini and Jonathan Corbet!
*
* Based strongly on code by:
*
* Author: Yong-iL Joh <tolkien@mizi.com>
* Date : $Date: 2002/06/18 12:37:30 $
*
* Author: Andrew Christian
* 15 May 2002
*/
#ifndef MMC_MMC_PROTOCOL_H
#define MMC_MMC_PROTOCOL_H
/* Standard MMC commands (3.1) type argument response */
/* class 1 */
#define MMC_GO_IDLE_STATE 0 /* bc */
#define MMC_SEND_OP_COND 1 /* bcr [31:0] OCR R3 */
#define MMC_ALL_SEND_CID 2 /* bcr R2 */
#define MMC_SET_RELATIVE_ADDR 3 /* ac [31:16] RCA R1 */
#define MMC_SET_DSR 4 /* bc [31:16] RCA */
#define MMC_SELECT_CARD 7 /* ac [31:16] RCA R1 */
#define MMC_SEND_CSD 9 /* ac [31:16] RCA R2 */
#define MMC_SEND_CID 10 /* ac [31:16] RCA R2 */
#define MMC_READ_DAT_UNTIL_STOP 11 /* adtc [31:0] dadr R1 */
#define MMC_STOP_TRANSMISSION 12 /* ac R1b */
#define MMC_SEND_STATUS 13 /* ac [31:16] RCA R1 */
#define MMC_GO_INACTIVE_STATE 15 /* ac [31:16] RCA */
/* class 2 */
#define MMC_SET_BLOCKLEN 16 /* ac [31:0] block len R1 */
#define MMC_READ_SINGLE_BLOCK 17 /* adtc [31:0] data addr R1 */
#define MMC_READ_MULTIPLE_BLOCK 18 /* adtc [31:0] data addr R1 */
/* class 3 */
#define MMC_WRITE_DAT_UNTIL_STOP 20 /* adtc [31:0] data addr R1 */
/* class 4 */
#define MMC_SET_BLOCK_COUNT 23 /* adtc [31:0] data addr R1 */
#define MMC_WRITE_BLOCK 24 /* adtc [31:0] data addr R1 */
#define MMC_WRITE_MULTIPLE_BLOCK 25 /* adtc R1 */
#define MMC_PROGRAM_CID 26 /* adtc R1 */
#define MMC_PROGRAM_CSD 27 /* adtc R1 */
/* class 6 */
#define MMC_SET_WRITE_PROT 28 /* ac [31:0] data addr R1b */
#define MMC_CLR_WRITE_PROT 29 /* ac [31:0] data addr R1b */
#define MMC_SEND_WRITE_PROT 30 /* adtc [31:0] wpdata addr R1 */
/* class 5 */
#define MMC_ERASE_GROUP_START 35 /* ac [31:0] data addr R1 */
#define MMC_ERASE_GROUP_END 36 /* ac [31:0] data addr R1 */
#define MMC_ERASE 37 /* ac R1b */
/* class 9 */
#define MMC_FAST_IO 39 /* ac <Complex> R4 */
#define MMC_GO_IRQ_STATE 40 /* bcr R5 */
/* class 7 */
#define MMC_LOCK_UNLOCK 42 /* adtc R1b */
/* class 8 */
#define MMC_APP_CMD 55 /* ac [31:16] RCA R1 */
#define MMC_GEN_CMD 56 /* adtc [0] RD/WR R1b */
/*
MMC status in R1
Type
e : error bit
s : status bit
r : detected and set for the actual command response
x : detected and set during command execution. the host must poll
the card by sending status command in order to read these bits.
Clear condition
a : according to the card state
b : always related to the previous command. Reception of
a valid command will clear it (with a delay of one command)
c : clear by read
*/
#define R1_OUT_OF_RANGE (1 << 31) /* er, c */
#define R1_ADDRESS_ERROR (1 << 30) /* erx, c */
#define R1_BLOCK_LEN_ERROR (1 << 29) /* er, c */
#define R1_ERASE_SEQ_ERROR (1 << 28) /* er, c */
#define R1_ERASE_PARAM (1 << 27) /* ex, c */
#define R1_WP_VIOLATION (1 << 26) /* erx, c */
#define R1_CARD_IS_LOCKED (1 << 25) /* sx, a */
#define R1_LOCK_UNLOCK_FAILED (1 << 24) /* erx, c */
#define R1_COM_CRC_ERROR (1 << 23) /* er, b */
#define R1_ILLEGAL_COMMAND (1 << 22) /* er, b */
#define R1_CARD_ECC_FAILED (1 << 21) /* ex, c */
#define R1_CC_ERROR (1 << 20) /* erx, c */
#define R1_ERROR (1 << 19) /* erx, c */
#define R1_UNDERRUN (1 << 18) /* ex, c */
#define R1_OVERRUN (1 << 17) /* ex, c */
#define R1_CID_CSD_OVERWRITE (1 << 16) /* erx, c, CID/CSD overwrite */
#define R1_WP_ERASE_SKIP (1 << 15) /* sx, c */
#define R1_CARD_ECC_DISABLED (1 << 14) /* sx, a */
#define R1_ERASE_RESET (1 << 13) /* sr, c */
#define R1_STATUS(x) (x & 0xFFFFE000)
#define R1_CURRENT_STATE(x) ((x & 0x00001E00) >> 9) /* sx, b (4 bits) */
#define R1_READY_FOR_DATA (1 << 8) /* sx, a */
#define R1_APP_CMD (1 << 7) /* sr, c */
/* These are unpacked versions of the actual responses */
struct _mmc_csd {
u8 csd_structure;
u8 spec_vers;
u8 taac;
u8 nsac;
u8 tran_speed;
u16 ccc;
u8 read_bl_len;
u8 read_bl_partial;
u8 write_blk_misalign;
u8 read_blk_misalign;
u8 dsr_imp;
u16 c_size;
u8 vdd_r_curr_min;
u8 vdd_r_curr_max;
u8 vdd_w_curr_min;
u8 vdd_w_curr_max;
u8 c_size_mult;
union {
struct { /* MMC system specification version 3.1 */
u8 erase_grp_size;
u8 erase_grp_mult;
} v31;
struct { /* MMC system specification version 2.2 */
u8 sector_size;
u8 erase_grp_size;
} v22;
} erase;
u8 wp_grp_size;
u8 wp_grp_enable;
u8 default_ecc;
u8 r2w_factor;
u8 write_bl_len;
u8 write_bl_partial;
u8 file_format_grp;
u8 copy;
u8 perm_write_protect;
u8 tmp_write_protect;
u8 file_format;
u8 ecc;
};
#define MMC_VDD_145_150 0x00000001 /* VDD voltage 1.45 - 1.50 */
#define MMC_VDD_150_155 0x00000002 /* VDD voltage 1.50 - 1.55 */
#define MMC_VDD_155_160 0x00000004 /* VDD voltage 1.55 - 1.60 */
#define MMC_VDD_160_165 0x00000008 /* VDD voltage 1.60 - 1.65 */
#define MMC_VDD_165_170 0x00000010 /* VDD voltage 1.65 - 1.70 */
#define MMC_VDD_17_18 0x00000020 /* VDD voltage 1.7 - 1.8 */
#define MMC_VDD_18_19 0x00000040 /* VDD voltage 1.8 - 1.9 */
#define MMC_VDD_19_20 0x00000080 /* VDD voltage 1.9 - 2.0 */
#define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */
#define MMC_VDD_21_22 0x00000200 /* VDD voltage 2.1 ~ 2.2 */
#define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */
#define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */
#define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */
#define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */
#define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */
#define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */
#define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */
#define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */
#define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */
#define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */
#define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */
#define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */
#define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */
#define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */
#define MMC_CARD_BUSY 0x80000000 /* Card Power up status bit */
/*
* CSD field definitions
*/
#define CSD_STRUCT_VER_1_0 0 /* Valid for system specification 1.0 - 1.2 */
#define CSD_STRUCT_VER_1_1 1 /* Valid for system specification 1.4 - 2.2 */
#define CSD_STRUCT_VER_1_2 2 /* Valid for system specification 3.1 */
#define CSD_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.2 */
#define CSD_SPEC_VER_1 1 /* Implements system specification 1.4 */
#define CSD_SPEC_VER_2 2 /* Implements system specification 2.0 - 2.2 */
#define CSD_SPEC_VER_3 3 /* Implements system specification 3.1 */
#endif /* MMC_MMC_PROTOCOL_H */
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