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-rw-r--r--drivers/mmc/Kconfig10
-rw-r--r--drivers/mmc/Makefile2
-rw-r--r--drivers/mmc/at91_mci.c6
-rw-r--r--drivers/mmc/au1xmmc.c2
-rw-r--r--drivers/mmc/imxmmc.c2
-rw-r--r--drivers/mmc/mmc.c327
-rw-r--r--drivers/mmc/mmc.h2
-rw-r--r--drivers/mmc/mmc_block.c15
-rw-r--r--drivers/mmc/mmc_queue.c67
-rw-r--r--drivers/mmc/mmc_queue.h3
-rw-r--r--drivers/mmc/mmc_sysfs.c30
-rw-r--r--drivers/mmc/mmci.c2
-rw-r--r--drivers/mmc/omap.c275
-rw-r--r--drivers/mmc/omap.h55
-rw-r--r--drivers/mmc/pxamci.c2
-rw-r--r--drivers/mmc/sdhci.c17
-rw-r--r--drivers/mmc/sdhci.h2
-rw-r--r--drivers/mmc/tifm_sd.c28
-rw-r--r--drivers/mmc/wbsd.c8
19 files changed, 572 insertions, 283 deletions
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig
index ea41852ec8c..4224686fdf2 100644
--- a/drivers/mmc/Kconfig
+++ b/drivers/mmc/Kconfig
@@ -40,7 +40,7 @@ config MMC_ARMMMCI
If unsure, say N.
config MMC_PXA
- tristate "Intel PXA255 Multimedia Card Interface support"
+ tristate "Intel PXA25x/26x/27x Multimedia Card Interface support"
depends on ARCH_PXA && MMC
help
This selects the Intel(R) PXA(R) Multimedia card Interface.
@@ -91,11 +91,11 @@ config MMC_AU1X
If unsure, say N.
-config MMC_AT91RM9200
- tristate "AT91RM9200 SD/MMC Card Interface support"
- depends on ARCH_AT91RM9200 && MMC
+config MMC_AT91
+ tristate "AT91 SD/MMC Card Interface support"
+ depends on ARCH_AT91 && MMC
help
- This selects the AT91RM9200 MCI controller.
+ This selects the AT91 MCI controller.
If unsure, say N.
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index acfd4de0aba..83ffb9326a5 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -22,7 +22,7 @@ obj-$(CONFIG_MMC_SDHCI) += sdhci.o
obj-$(CONFIG_MMC_WBSD) += wbsd.o
obj-$(CONFIG_MMC_AU1X) += au1xmmc.o
obj-$(CONFIG_MMC_OMAP) += omap.o
-obj-$(CONFIG_MMC_AT91RM9200) += at91_mci.o
+obj-$(CONFIG_MMC_AT91) += at91_mci.o
obj-$(CONFIG_MMC_TIFM_SD) += tifm_sd.o
mmc_core-y := mmc.o mmc_sysfs.o
diff --git a/drivers/mmc/at91_mci.c b/drivers/mmc/at91_mci.c
index 494b23fb0a0..4633dbc9a90 100644
--- a/drivers/mmc/at91_mci.c
+++ b/drivers/mmc/at91_mci.c
@@ -73,8 +73,8 @@
#include <asm/mach/mmc.h>
#include <asm/arch/board.h>
#include <asm/arch/gpio.h>
-#include <asm/arch/at91rm9200_mci.h>
-#include <asm/arch/at91rm9200_pdc.h>
+#include <asm/arch/at91_mci.h>
+#include <asm/arch/at91_pdc.h>
#define DRIVER_NAME "at91_mci"
@@ -793,7 +793,7 @@ int at91_mci_get_ro(struct mmc_host *mmc)
return read_only;
}
-static struct mmc_host_ops at91_mci_ops = {
+static const struct mmc_host_ops at91_mci_ops = {
.request = at91_mci_request,
.set_ios = at91_mci_set_ios,
.get_ro = at91_mci_get_ro,
diff --git a/drivers/mmc/au1xmmc.c b/drivers/mmc/au1xmmc.c
index 53ffcbb14a9..447fba5825f 100644
--- a/drivers/mmc/au1xmmc.c
+++ b/drivers/mmc/au1xmmc.c
@@ -875,7 +875,7 @@ static void au1xmmc_init_dma(struct au1xmmc_host *host)
host->rx_chan = rxchan;
}
-struct mmc_host_ops au1xmmc_ops = {
+struct const mmc_host_ops au1xmmc_ops = {
.request = au1xmmc_request,
.set_ios = au1xmmc_set_ios,
};
diff --git a/drivers/mmc/imxmmc.c b/drivers/mmc/imxmmc.c
index 659d4a822cc..06e7fcd1922 100644
--- a/drivers/mmc/imxmmc.c
+++ b/drivers/mmc/imxmmc.c
@@ -877,7 +877,7 @@ static void imxmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
}
}
-static struct mmc_host_ops imxmci_ops = {
+static const struct mmc_host_ops imxmci_ops = {
.request = imxmci_request,
.set_ios = imxmci_set_ios,
};
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index ee8863c123e..6f2a282e2b9 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -4,6 +4,7 @@
* Copyright (C) 2003-2004 Russell King, All Rights Reserved.
* SD support Copyright (C) 2004 Ian Molton, All Rights Reserved.
* SD support Copyright (C) 2005 Pierre Ossman, All Rights Reserved.
+ * MMCv4 support Copyright (C) 2006 Philip Langdale, 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
@@ -396,23 +397,23 @@ static int mmc_select_card(struct mmc_host *host, struct mmc_card *card)
return err;
/*
- * Default bus width is 1 bit.
- */
- host->ios.bus_width = MMC_BUS_WIDTH_1;
-
- /*
- * We can only change the bus width of the selected
- * card so therefore we have to put the handling
+ * We can only change the bus width of SD cards when
+ * they are selected so we have to put the handling
* here.
+ *
+ * The card is in 1 bit mode by default so
+ * we only need to change if it supports the
+ * wider version.
*/
- if (host->caps & MMC_CAP_4_BIT_DATA) {
+ if (mmc_card_sd(card) &&
+ (card->scr.bus_widths & SD_SCR_BUS_WIDTH_4)) {
+
/*
- * The card is in 1 bit mode by default so
- * we only need to change if it supports the
- * wider version.
- */
- if (mmc_card_sd(card) &&
- (card->scr.bus_widths & SD_SCR_BUS_WIDTH_4)) {
+ * Default bus width is 1 bit.
+ */
+ host->ios.bus_width = MMC_BUS_WIDTH_1;
+
+ if (host->caps & MMC_CAP_4_BIT_DATA) {
struct mmc_command cmd;
cmd.opcode = SD_APP_SET_BUS_WIDTH;
cmd.arg = SD_BUS_WIDTH_4;
@@ -453,11 +454,11 @@ static void mmc_deselect_cards(struct mmc_host *host)
static inline void mmc_delay(unsigned int ms)
{
- if (ms < HZ / 1000) {
- yield();
+ if (ms < 1000 / HZ) {
+ cond_resched();
mdelay(ms);
} else {
- msleep_interruptible (ms);
+ msleep(ms);
}
}
@@ -475,7 +476,7 @@ static u32 mmc_select_voltage(struct mmc_host *host, u32 ocr)
if (bit) {
bit -= 1;
- ocr = 3 << bit;
+ ocr &= 3 << bit;
host->ios.vdd = bit;
mmc_set_ios(host);
@@ -953,6 +954,137 @@ static void mmc_read_csds(struct mmc_host *host)
}
}
+static void mmc_process_ext_csds(struct mmc_host *host)
+{
+ int err;
+ struct mmc_card *card;
+
+ struct mmc_request mrq;
+ struct mmc_command cmd;
+ struct mmc_data data;
+
+ struct scatterlist sg;
+
+ /*
+ * As the ext_csd is so large and mostly unused, we don't store the
+ * raw block in mmc_card.
+ */
+ u8 *ext_csd;
+ ext_csd = kmalloc(512, GFP_KERNEL);
+ if (!ext_csd) {
+ printk("%s: could not allocate a buffer to receive the ext_csd."
+ "mmc v4 cards will be treated as v3.\n",
+ mmc_hostname(host));
+ return;
+ }
+
+ list_for_each_entry(card, &host->cards, node) {
+ if (card->state & (MMC_STATE_DEAD|MMC_STATE_PRESENT))
+ continue;
+ if (mmc_card_sd(card))
+ continue;
+ if (card->csd.mmca_vsn < CSD_SPEC_VER_4)
+ continue;
+
+ err = mmc_select_card(host, card);
+ if (err != MMC_ERR_NONE) {
+ mmc_card_set_dead(card);
+ continue;
+ }
+
+ memset(&cmd, 0, sizeof(struct mmc_command));
+
+ cmd.opcode = MMC_SEND_EXT_CSD;
+ cmd.arg = 0;
+ cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC;
+
+ memset(&data, 0, sizeof(struct mmc_data));
+
+ mmc_set_data_timeout(&data, card, 0);
+
+ data.blksz = 512;
+ data.blocks = 1;
+ data.flags = MMC_DATA_READ;
+ data.sg = &sg;
+ data.sg_len = 1;
+
+ memset(&mrq, 0, sizeof(struct mmc_request));
+
+ mrq.cmd = &cmd;
+ mrq.data = &data;
+
+ sg_init_one(&sg, ext_csd, 512);
+
+ mmc_wait_for_req(host, &mrq);
+
+ if (cmd.error != MMC_ERR_NONE || data.error != MMC_ERR_NONE) {
+ mmc_card_set_dead(card);
+ continue;
+ }
+
+ switch (ext_csd[EXT_CSD_CARD_TYPE]) {
+ case EXT_CSD_CARD_TYPE_52 | EXT_CSD_CARD_TYPE_26:
+ card->ext_csd.hs_max_dtr = 52000000;
+ break;
+ case EXT_CSD_CARD_TYPE_26:
+ card->ext_csd.hs_max_dtr = 26000000;
+ break;
+ default:
+ /* MMC v4 spec says this cannot happen */
+ printk("%s: card is mmc v4 but doesn't support "
+ "any high-speed modes.\n",
+ mmc_hostname(card->host));
+ mmc_card_set_bad(card);
+ continue;
+ }
+
+ /* Activate highspeed support. */
+ cmd.opcode = MMC_SWITCH;
+ cmd.arg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
+ (EXT_CSD_HS_TIMING << 16) |
+ (1 << 8) |
+ EXT_CSD_CMD_SET_NORMAL;
+ cmd.flags = MMC_RSP_R1B | MMC_CMD_AC;
+
+ err = mmc_wait_for_cmd(host, &cmd, CMD_RETRIES);
+ if (err != MMC_ERR_NONE) {
+ printk("%s: failed to switch card to mmc v4 "
+ "high-speed mode.\n",
+ mmc_hostname(card->host));
+ continue;
+ }
+
+ mmc_card_set_highspeed(card);
+
+ /* Check for host support for wide-bus modes. */
+ if (!(host->caps & MMC_CAP_4_BIT_DATA)) {
+ continue;
+ }
+
+ /* Activate 4-bit support. */
+ cmd.opcode = MMC_SWITCH;
+ cmd.arg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
+ (EXT_CSD_BUS_WIDTH << 16) |
+ (EXT_CSD_BUS_WIDTH_4 << 8) |
+ EXT_CSD_CMD_SET_NORMAL;
+ cmd.flags = MMC_RSP_R1B | MMC_CMD_AC;
+
+ err = mmc_wait_for_cmd(host, &cmd, CMD_RETRIES);
+ if (err != MMC_ERR_NONE) {
+ printk("%s: failed to switch card to "
+ "mmc v4 4-bit bus mode.\n",
+ mmc_hostname(card->host));
+ continue;
+ }
+
+ host->ios.bus_width = MMC_BUS_WIDTH_4;
+ }
+
+ kfree(ext_csd);
+
+ mmc_deselect_cards(host);
+}
+
static void mmc_read_scrs(struct mmc_host *host)
{
int err;
@@ -1025,14 +1157,133 @@ static void mmc_read_scrs(struct mmc_host *host)
mmc_deselect_cards(host);
}
+static void mmc_read_switch_caps(struct mmc_host *host)
+{
+ int err;
+ struct mmc_card *card;
+ struct mmc_request mrq;
+ struct mmc_command cmd;
+ struct mmc_data data;
+ unsigned char *status;
+ struct scatterlist sg;
+
+ status = kmalloc(64, GFP_KERNEL);
+ if (!status) {
+ printk(KERN_WARNING "%s: Unable to allocate buffer for "
+ "reading switch capabilities.\n",
+ mmc_hostname(host));
+ return;
+ }
+
+ list_for_each_entry(card, &host->cards, node) {
+ if (card->state & (MMC_STATE_DEAD|MMC_STATE_PRESENT))
+ continue;
+ if (!mmc_card_sd(card))
+ continue;
+ if (card->scr.sda_vsn < SCR_SPEC_VER_1)
+ continue;
+
+ err = mmc_select_card(host, card);
+ if (err != MMC_ERR_NONE) {
+ mmc_card_set_dead(card);
+ continue;
+ }
+
+ memset(&cmd, 0, sizeof(struct mmc_command));
+
+ cmd.opcode = SD_SWITCH;
+ cmd.arg = 0x00FFFFF1;
+ cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC;
+
+ memset(&data, 0, sizeof(struct mmc_data));
+
+ mmc_set_data_timeout(&data, card, 0);
+
+ data.blksz = 64;
+ data.blocks = 1;
+ data.flags = MMC_DATA_READ;
+ data.sg = &sg;
+ data.sg_len = 1;
+
+ memset(&mrq, 0, sizeof(struct mmc_request));
+
+ mrq.cmd = &cmd;
+ mrq.data = &data;
+
+ sg_init_one(&sg, status, 64);
+
+ mmc_wait_for_req(host, &mrq);
+
+ if (cmd.error != MMC_ERR_NONE || data.error != MMC_ERR_NONE) {
+ mmc_card_set_dead(card);
+ continue;
+ }
+
+ if (status[13] & 0x02)
+ card->sw_caps.hs_max_dtr = 50000000;
+
+ memset(&cmd, 0, sizeof(struct mmc_command));
+
+ cmd.opcode = SD_SWITCH;
+ cmd.arg = 0x80FFFFF1;
+ cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC;
+
+ memset(&data, 0, sizeof(struct mmc_data));
+
+ mmc_set_data_timeout(&data, card, 0);
+
+ data.blksz = 64;
+ data.blocks = 1;
+ data.flags = MMC_DATA_READ;
+ data.sg = &sg;
+ data.sg_len = 1;
+
+ memset(&mrq, 0, sizeof(struct mmc_request));
+
+ mrq.cmd = &cmd;
+ mrq.data = &data;
+
+ sg_init_one(&sg, status, 64);
+
+ mmc_wait_for_req(host, &mrq);
+
+ if (cmd.error != MMC_ERR_NONE || data.error != MMC_ERR_NONE) {
+ mmc_card_set_dead(card);
+ continue;
+ }
+
+ if ((status[16] & 0xF) != 1) {
+ printk(KERN_WARNING "%s: Problem switching card "
+ "into high-speed mode!\n",
+ mmc_hostname(host));
+ continue;
+ }
+
+ mmc_card_set_highspeed(card);
+ }
+
+ kfree(status);
+
+ mmc_deselect_cards(host);
+}
+
static unsigned int mmc_calculate_clock(struct mmc_host *host)
{
struct mmc_card *card;
unsigned int max_dtr = host->f_max;
list_for_each_entry(card, &host->cards, node)
- if (!mmc_card_dead(card) && max_dtr > card->csd.max_dtr)
- max_dtr = card->csd.max_dtr;
+ if (!mmc_card_dead(card)) {
+ if (mmc_card_highspeed(card) && mmc_card_sd(card)) {
+ if (max_dtr > card->sw_caps.hs_max_dtr)
+ max_dtr = card->sw_caps.hs_max_dtr;
+ } else if (mmc_card_highspeed(card) && !mmc_card_sd(card)) {
+ if (max_dtr > card->ext_csd.hs_max_dtr)
+ max_dtr = card->ext_csd.hs_max_dtr;
+ } else if (max_dtr > card->csd.max_dtr) {
+ max_dtr = card->csd.max_dtr;
+ }
+ }
pr_debug("%s: selected %d.%03dMHz transfer rate\n",
mmc_hostname(host),
@@ -1150,8 +1401,11 @@ static void mmc_setup(struct mmc_host *host)
mmc_read_csds(host);
- if (host->mode == MMC_MODE_SD)
+ if (host->mode == MMC_MODE_SD) {
mmc_read_scrs(host);
+ mmc_read_switch_caps(host);
+ } else
+ mmc_process_ext_csds(host);
}
@@ -1165,27 +1419,40 @@ static void mmc_setup(struct mmc_host *host)
*/
void mmc_detect_change(struct mmc_host *host, unsigned long delay)
{
- if (delay)
- mmc_schedule_delayed_work(&host->detect, delay);
- else
- mmc_schedule_work(&host->detect);
+ mmc_schedule_delayed_work(&host->detect, delay);
}
EXPORT_SYMBOL(mmc_detect_change);
-static void mmc_rescan(void *data)
+static void mmc_rescan(struct work_struct *work)
{
- struct mmc_host *host = data;
+ struct mmc_host *host =
+ container_of(work, struct mmc_host, detect.work);
struct list_head *l, *n;
+ unsigned char power_mode;
mmc_claim_host(host);
- if (host->ios.power_mode == MMC_POWER_ON)
+ /*
+ * Check for removed cards and newly inserted ones. We check for
+ * removed cards first so we can intelligently re-select the VDD.
+ */
+ power_mode = host->ios.power_mode;
+ if (power_mode == MMC_POWER_ON)
mmc_check_cards(host);
mmc_setup(host);
+ /*
+ * Some broken cards process CMD1 even in stand-by state. There is
+ * no reply, but an ILLEGAL_COMMAND error is cached and returned
+ * after next command. We poll for card status here to clear any
+ * possibly pending error.
+ */
+ if (power_mode == MMC_POWER_ON)
+ mmc_check_cards(host);
+
if (!list_empty(&host->cards)) {
/*
* (Re-)calculate the fastest clock rate which the
@@ -1244,7 +1511,7 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
spin_lock_init(&host->lock);
init_waitqueue_head(&host->wq);
INIT_LIST_HEAD(&host->cards);
- INIT_WORK(&host->detect, mmc_rescan, host);
+ INIT_DELAYED_WORK(&host->detect, mmc_rescan);
/*
* By default, hosts do not support SGIO or large requests.
@@ -1342,7 +1609,7 @@ EXPORT_SYMBOL(mmc_suspend_host);
*/
int mmc_resume_host(struct mmc_host *host)
{
- mmc_rescan(host);
+ mmc_rescan(&host->detect.work);
return 0;
}
diff --git a/drivers/mmc/mmc.h b/drivers/mmc/mmc.h
index cd5e0ab3d84..149affe0b68 100644
--- a/drivers/mmc/mmc.h
+++ b/drivers/mmc/mmc.h
@@ -20,6 +20,6 @@ void mmc_remove_host_sysfs(struct mmc_host *host);
void mmc_free_host_sysfs(struct mmc_host *host);
int mmc_schedule_work(struct work_struct *work);
-int mmc_schedule_delayed_work(struct work_struct *work, unsigned long delay);
+int mmc_schedule_delayed_work(struct delayed_work *work, unsigned long delay);
void mmc_flush_scheduled_work(void);
#endif
diff --git a/drivers/mmc/mmc_block.c b/drivers/mmc/mmc_block.c
index f9027c8db79..87713572293 100644
--- a/drivers/mmc/mmc_block.c
+++ b/drivers/mmc/mmc_block.c
@@ -83,7 +83,6 @@ static void mmc_blk_put(struct mmc_blk_data *md)
md->usage--;
if (md->usage == 0) {
put_disk(md->disk);
- mmc_cleanup_queue(&md->queue);
kfree(md);
}
mutex_unlock(&open_lock);
@@ -225,10 +224,10 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
struct mmc_blk_data *md = mq->data;
struct mmc_card *card = md->queue.card;
struct mmc_blk_request brq;
- int ret;
+ int ret = 1;
if (mmc_card_claim_host(card))
- goto cmd_err;
+ goto flush_queue;
do {
struct mmc_command cmd;
@@ -345,8 +344,6 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
return 1;
cmd_err:
- ret = 1;
-
/*
* If this is an SD card and we're writing, we can first
* mark the known good sectors as ok.
@@ -380,6 +377,7 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
mmc_card_release_host(card);
+flush_queue:
spin_lock_irq(&md->lock);
while (ret) {
ret = end_that_request_chunk(req, 0,
@@ -553,12 +551,11 @@ static void mmc_blk_remove(struct mmc_card *card)
if (md) {
int devidx;
+ /* Stop new requests from getting into the queue */
del_gendisk(md->disk);
- /*
- * I think this is needed.
- */
- md->disk->queue = NULL;
+ /* Then flush out any already in there */
+ mmc_cleanup_queue(&md->queue);
devidx = md->disk->first_minor >> MMC_SHIFT;
__clear_bit(devidx, dev_use);
diff --git a/drivers/mmc/mmc_queue.c b/drivers/mmc/mmc_queue.c
index 4ccdd82b680..a17423a4ed8 100644
--- a/drivers/mmc/mmc_queue.c
+++ b/drivers/mmc/mmc_queue.c
@@ -10,13 +10,13 @@
*/
#include <linux/module.h>
#include <linux/blkdev.h>
+#include <linux/kthread.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
#include "mmc_queue.h"
-#define MMC_QUEUE_EXIT (1 << 0)
-#define MMC_QUEUE_SUSPENDED (1 << 1)
+#define MMC_QUEUE_SUSPENDED (1 << 0)
/*
* Prepare a MMC request. Essentially, this means passing the
@@ -59,7 +59,6 @@ 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
@@ -67,12 +66,7 @@ static int mmc_queue_thread(void *d)
*/
current->flags |= PF_MEMALLOC|PF_NOFREEZE;
- daemonize("mmcqd");
-
- complete(&mq->thread_complete);
-
down(&mq->thread_sem);
- add_wait_queue(&mq->thread_wq, &wait);
do {
struct request *req = NULL;
@@ -84,7 +78,7 @@ static int mmc_queue_thread(void *d)
spin_unlock_irq(q->queue_lock);
if (!req) {
- if (mq->flags & MMC_QUEUE_EXIT)
+ if (kthread_should_stop())
break;
up(&mq->thread_sem);
schedule();
@@ -95,10 +89,8 @@ static int mmc_queue_thread(void *d)
mq->issue_fn(mq, req);
} while (1);
- remove_wait_queue(&mq->thread_wq, &wait);
up(&mq->thread_sem);
- complete_and_exit(&mq->thread_complete, 0);
return 0;
}
@@ -111,9 +103,22 @@ static int mmc_queue_thread(void *d)
static void mmc_request(request_queue_t *q)
{
struct mmc_queue *mq = q->queuedata;
+ struct request *req;
+ int ret;
+
+ if (!mq) {
+ printk(KERN_ERR "MMC: killing requests for dead queue\n");
+ while ((req = elv_next_request(q)) != NULL) {
+ do {
+ ret = end_that_request_chunk(req, 0,
+ req->current_nr_sectors << 9);
+ } while (ret);
+ }
+ return;
+ }
if (!mq->req)
- wake_up(&mq->thread_wq);
+ wake_up_process(mq->thread);
}
/**
@@ -130,8 +135,8 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
u64 limit = BLK_BOUNCE_HIGH;
int ret;
- if (host->dev->dma_mask && *host->dev->dma_mask)
- limit = *host->dev->dma_mask;
+ if (mmc_dev(host)->dma_mask && *mmc_dev(host)->dma_mask)
+ limit = *mmc_dev(host)->dma_mask;
mq->card = card;
mq->queue = blk_init_queue(mmc_request, lock);
@@ -152,36 +157,40 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
GFP_KERNEL);
if (!mq->sg) {
ret = -ENOMEM;
- goto cleanup;
+ goto cleanup_queue;
}
- init_completion(&mq->thread_complete);
- init_waitqueue_head(&mq->thread_wq);
init_MUTEX(&mq->thread_sem);
- ret = kernel_thread(mmc_queue_thread, mq, CLONE_KERNEL);
- if (ret >= 0) {
- wait_for_completion(&mq->thread_complete);
- init_completion(&mq->thread_complete);
- ret = 0;
- goto out;
+ mq->thread = kthread_run(mmc_queue_thread, mq, "mmcqd");
+ if (IS_ERR(mq->thread)) {
+ ret = PTR_ERR(mq->thread);
+ goto free_sg;
}
- cleanup:
+ return 0;
+
+ free_sg:
kfree(mq->sg);
mq->sg = NULL;
-
+ cleanup_queue:
blk_cleanup_queue(mq->queue);
- out:
return ret;
}
EXPORT_SYMBOL(mmc_init_queue);
void mmc_cleanup_queue(struct mmc_queue *mq)
{
- mq->flags |= MMC_QUEUE_EXIT;
- wake_up(&mq->thread_wq);
- wait_for_completion(&mq->thread_complete);
+ request_queue_t *q = mq->queue;
+ unsigned long flags;
+
+ /* Mark that we should start throwing out stragglers */
+ spin_lock_irqsave(q->queue_lock, flags);
+ q->queuedata = NULL;
+ spin_unlock_irqrestore(q->queue_lock, flags);
+
+ /* Then terminate our worker thread */
+ kthread_stop(mq->thread);
kfree(mq->sg);
mq->sg = NULL;
diff --git a/drivers/mmc/mmc_queue.h b/drivers/mmc/mmc_queue.h
index 7182d2f69b4..c9f139e764f 100644
--- a/drivers/mmc/mmc_queue.h
+++ b/drivers/mmc/mmc_queue.h
@@ -6,8 +6,7 @@ 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 semaphore thread_sem;
unsigned int flags;
struct request *req;
diff --git a/drivers/mmc/mmc_sysfs.c b/drivers/mmc/mmc_sysfs.c
index 10cc9734eaa..e334acd045b 100644
--- a/drivers/mmc/mmc_sysfs.c
+++ b/drivers/mmc/mmc_sysfs.c
@@ -199,7 +199,7 @@ 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.parent = mmc_dev(host);
card->dev.bus = &mmc_bus_type;
card->dev.release = mmc_release_card;
}
@@ -242,7 +242,7 @@ void mmc_remove_card(struct mmc_card *card)
}
-static void mmc_host_classdev_release(struct class_device *dev)
+static void mmc_host_classdev_release(struct device *dev)
{
struct mmc_host *host = cls_dev_to_mmc_host(dev);
kfree(host);
@@ -250,7 +250,7 @@ static void mmc_host_classdev_release(struct class_device *dev)
static struct class mmc_host_class = {
.name = "mmc_host",
- .release = mmc_host_classdev_release,
+ .dev_release = mmc_host_classdev_release,
};
static DEFINE_IDR(mmc_host_idr);
@@ -267,10 +267,10 @@ struct mmc_host *mmc_alloc_host_sysfs(int extra, struct device *dev)
if (host) {
memset(host, 0, sizeof(struct mmc_host) + extra);
- host->dev = dev;
- host->class_dev.dev = host->dev;
+ host->parent = dev;
+ host->class_dev.parent = dev;
host->class_dev.class = &mmc_host_class;
- class_device_initialize(&host->class_dev);
+ device_initialize(&host->class_dev);
}
return host;
@@ -292,10 +292,10 @@ int mmc_add_host_sysfs(struct mmc_host *host)
if (err)
return err;
- snprintf(host->class_dev.class_id, BUS_ID_SIZE,
+ snprintf(host->class_dev.bus_id, BUS_ID_SIZE,
"mmc%d", host->index);
- return class_device_add(&host->class_dev);
+ return device_add(&host->class_dev);
}
/*
@@ -303,7 +303,7 @@ int mmc_add_host_sysfs(struct mmc_host *host)
*/
void mmc_remove_host_sysfs(struct mmc_host *host)
{
- class_device_del(&host->class_dev);
+ device_del(&host->class_dev);
spin_lock(&mmc_host_lock);
idr_remove(&mmc_host_idr, host->index);
@@ -315,23 +315,15 @@ void mmc_remove_host_sysfs(struct mmc_host *host)
*/
void mmc_free_host_sysfs(struct mmc_host *host)
{
- class_device_put(&host->class_dev);
+ put_device(&host->class_dev);
}
static struct workqueue_struct *workqueue;
/*
- * Internal function. Schedule work in the MMC work queue.
- */
-int mmc_schedule_work(struct work_struct *work)
-{
- return queue_work(workqueue, work);
-}
-
-/*
* Internal function. Schedule delayed work in the MMC work queue.
*/
-int mmc_schedule_delayed_work(struct work_struct *work, unsigned long delay)
+int mmc_schedule_delayed_work(struct delayed_work *work, unsigned long delay)
{
return queue_delayed_work(workqueue, work, delay);
}
diff --git a/drivers/mmc/mmci.c b/drivers/mmc/mmci.c
index 828503c4ee6..e9b80e92026 100644
--- a/drivers/mmc/mmci.c
+++ b/drivers/mmc/mmci.c
@@ -443,7 +443,7 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
}
}
-static struct mmc_host_ops mmci_ops = {
+static const struct mmc_host_ops mmci_ops = {
.request = mmci_request,
.set_ios = mmci_set_ios,
};
diff --git a/drivers/mmc/omap.c b/drivers/mmc/omap.c
index 762fa289589..435d331e772 100644
--- a/drivers/mmc/omap.c
+++ b/drivers/mmc/omap.c
@@ -38,7 +38,57 @@
#include <asm/arch/fpga.h>
#include <asm/arch/tps65010.h>
-#include "omap.h"
+#define OMAP_MMC_REG_CMD 0x00
+#define OMAP_MMC_REG_ARGL 0x04
+#define OMAP_MMC_REG_ARGH 0x08
+#define OMAP_MMC_REG_CON 0x0c
+#define OMAP_MMC_REG_STAT 0x10
+#define OMAP_MMC_REG_IE 0x14
+#define OMAP_MMC_REG_CTO 0x18
+#define OMAP_MMC_REG_DTO 0x1c
+#define OMAP_MMC_REG_DATA 0x20
+#define OMAP_MMC_REG_BLEN 0x24
+#define OMAP_MMC_REG_NBLK 0x28
+#define OMAP_MMC_REG_BUF 0x2c
+#define OMAP_MMC_REG_SDIO 0x34
+#define OMAP_MMC_REG_REV 0x3c
+#define OMAP_MMC_REG_RSP0 0x40
+#define OMAP_MMC_REG_RSP1 0x44
+#define OMAP_MMC_REG_RSP2 0x48
+#define OMAP_MMC_REG_RSP3 0x4c
+#define OMAP_MMC_REG_RSP4 0x50
+#define OMAP_MMC_REG_RSP5 0x54
+#define OMAP_MMC_REG_RSP6 0x58
+#define OMAP_MMC_REG_RSP7 0x5c
+#define OMAP_MMC_REG_IOSR 0x60
+#define OMAP_MMC_REG_SYSC 0x64
+#define OMAP_MMC_REG_SYSS 0x68
+
+#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_READ(host, reg) __raw_readw((host)->virt_base + OMAP_MMC_REG_##reg)
+#define OMAP_MMC_WRITE(host, reg, val) __raw_writew((val), (host)->virt_base + OMAP_MMC_REG_##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"
#define RSP_TYPE(x) ((x) & ~(MMC_RSP_BUSY|MMC_RSP_OPCODE))
@@ -60,8 +110,9 @@ struct mmc_omap_host {
unsigned char id; /* 16xx chips have 2 MMC blocks */
struct clk * iclk;
struct clk * fclk;
- struct resource *res;
- void __iomem *base;
+ struct resource *mem_res;
+ void __iomem *virt_base;
+ unsigned int phys_base;
int irq;
unsigned char bus_mode;
unsigned char hw_bus_mode;
@@ -191,16 +242,16 @@ mmc_omap_start_command(struct mmc_omap_host *host, struct mmc_command *cmd)
clk_enable(host->fclk);
- OMAP_MMC_WRITE(host->base, CTO, 200);
- OMAP_MMC_WRITE(host->base, ARGL, cmd->arg & 0xffff);
- OMAP_MMC_WRITE(host->base, ARGH, cmd->arg >> 16);
- OMAP_MMC_WRITE(host->base, IE,
+ OMAP_MMC_WRITE(host, CTO, 200);
+ OMAP_MMC_WRITE(host, ARGL, cmd->arg & 0xffff);
+ OMAP_MMC_WRITE(host, ARGH, cmd->arg >> 16);
+ OMAP_MMC_WRITE(host, IE,
OMAP_MMC_STAT_A_EMPTY | OMAP_MMC_STAT_A_FULL |
OMAP_MMC_STAT_CMD_CRC | OMAP_MMC_STAT_CMD_TOUT |
OMAP_MMC_STAT_DATA_CRC | OMAP_MMC_STAT_DATA_TOUT |
OMAP_MMC_STAT_END_OF_CMD | OMAP_MMC_STAT_CARD_ERR |
OMAP_MMC_STAT_END_OF_DATA);
- OMAP_MMC_WRITE(host->base, CMD, cmdreg);
+ OMAP_MMC_WRITE(host, CMD, cmdreg);
}
static void
@@ -296,22 +347,22 @@ mmc_omap_cmd_done(struct mmc_omap_host *host, struct mmc_command *cmd)
if (cmd->flags & MMC_RSP_136) {
/* response type 2 */
cmd->resp[3] =
- OMAP_MMC_READ(host->base, RSP0) |
- (OMAP_MMC_READ(host->base, RSP1) << 16);
+ OMAP_MMC_READ(host, RSP0) |
+ (OMAP_MMC_READ(host, RSP1) << 16);
cmd->resp[2] =
- OMAP_MMC_READ(host->base, RSP2) |
- (OMAP_MMC_READ(host->base, RSP3) << 16);
+ OMAP_MMC_READ(host, RSP2) |
+ (OMAP_MMC_READ(host, RSP3) << 16);
cmd->resp[1] =
- OMAP_MMC_READ(host->base, RSP4) |
- (OMAP_MMC_READ(host->base, RSP5) << 16);
+ OMAP_MMC_READ(host, RSP4) |
+ (OMAP_MMC_READ(host, RSP5) << 16);
cmd->resp[0] =
- OMAP_MMC_READ(host->base, RSP6) |
- (OMAP_MMC_READ(host->base, RSP7) << 16);
+ OMAP_MMC_READ(host, RSP6) |
+ (OMAP_MMC_READ(host, RSP7) << 16);
} else {
/* response types 1, 1b, 3, 4, 5, 6 */
cmd->resp[0] =
- OMAP_MMC_READ(host->base, RSP6) |
- (OMAP_MMC_READ(host->base, RSP7) << 16);
+ OMAP_MMC_READ(host, RSP6) |
+ (OMAP_MMC_READ(host, RSP7) << 16);
}
}
@@ -354,9 +405,9 @@ mmc_omap_xfer_data(struct mmc_omap_host *host, int write)
host->data->bytes_xfered += n;
if (write) {
- __raw_writesw(host->base + OMAP_MMC_REG_DATA, host->buffer, n);
+ __raw_writesw(host->virt_base + OMAP_MMC_REG_DATA, host->buffer, n);
} else {
- __raw_readsw(host->base + OMAP_MMC_REG_DATA, host->buffer, n);
+ __raw_readsw(host->virt_base + OMAP_MMC_REG_DATA, host->buffer, n);
}
}
@@ -386,11 +437,11 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
int transfer_error;
if (host->cmd == NULL && host->data == NULL) {
- status = OMAP_MMC_READ(host->base, STAT);
+ status = OMAP_MMC_READ(host, STAT);
dev_info(mmc_dev(host->mmc),"spurious irq 0x%04x\n", status);
if (status != 0) {
- OMAP_MMC_WRITE(host->base, STAT, status);
- OMAP_MMC_WRITE(host->base, IE, 0);
+ OMAP_MMC_WRITE(host, STAT, status);
+ OMAP_MMC_WRITE(host, IE, 0);
}
return IRQ_HANDLED;
}
@@ -399,8 +450,8 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
end_transfer = 0;
transfer_error = 0;
- while ((status = OMAP_MMC_READ(host->base, STAT)) != 0) {
- OMAP_MMC_WRITE(host->base, STAT, status);
+ while ((status = OMAP_MMC_READ(host, STAT)) != 0) {
+ OMAP_MMC_WRITE(host, STAT, status);
#ifdef CONFIG_MMC_DEBUG
dev_dbg(mmc_dev(host->mmc), "MMC IRQ %04x (CMD %d): ",
status, host->cmd != NULL ? host->cmd->opcode : -1);
@@ -470,8 +521,8 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
if (status & OMAP_MMC_STAT_CARD_ERR) {
if (host->cmd && host->cmd->opcode == MMC_STOP_TRANSMISSION) {
- u32 response = OMAP_MMC_READ(host->base, RSP6)
- | (OMAP_MMC_READ(host->base, RSP7) << 16);
+ u32 response = OMAP_MMC_READ(host, RSP6)
+ | (OMAP_MMC_READ(host, RSP7) << 16);
/* STOP sometimes sets must-ignore bits */
if (!(response & (R1_CC_ERROR
| R1_ILLEGAL_COMMAND
@@ -530,12 +581,6 @@ static void mmc_omap_switch_timer(unsigned long arg)
schedule_work(&host->switch_work);
}
-/* FIXME: Handle card insertion and removal properly. Maybe use a mask
- * for MMC state? */
-static void mmc_omap_switch_callback(unsigned long data, u8 mmc_mask)
-{
-}
-
static void mmc_omap_switch_handler(void *data)
{
struct mmc_omap_host *host = (struct mmc_omap_host *) data;
@@ -581,7 +626,7 @@ mmc_omap_prepare_dma(struct mmc_omap_host *host, struct mmc_data *data)
int dst_port = 0;
int sync_dev = 0;
- data_addr = io_v2p((u32) host->base) + OMAP_MMC_REG_DATA;
+ data_addr = host->phys_base + OMAP_MMC_REG_DATA;
frame = data->blksz;
count = sg_dma_len(sg);
@@ -640,10 +685,9 @@ mmc_omap_prepare_dma(struct mmc_omap_host *host, struct mmc_data *data)
}
/* Max limit for DMA frame count is 0xffff */
- if (unlikely(count > 0xffff))
- BUG();
+ BUG_ON(count > 0xffff);
- OMAP_MMC_WRITE(host->base, BUF, buf);
+ OMAP_MMC_WRITE(host, BUF, buf);
omap_set_dma_transfer_params(dma_ch, OMAP_DMA_DATA_TYPE_S16,
frame, count, OMAP_DMA_SYNC_FRAME,
sync_dev, 0);
@@ -728,11 +772,11 @@ static inline void set_cmd_timeout(struct mmc_omap_host *host, struct mmc_reques
{
u16 reg;
- reg = OMAP_MMC_READ(host->base, SDIO);
+ reg = OMAP_MMC_READ(host, SDIO);
reg &= ~(1 << 5);
- OMAP_MMC_WRITE(host->base, SDIO, reg);
+ OMAP_MMC_WRITE(host, SDIO, reg);
/* Set maximum timeout */
- OMAP_MMC_WRITE(host->base, CTO, 0xff);
+ OMAP_MMC_WRITE(host, CTO, 0xff);
}
static inline void set_data_timeout(struct mmc_omap_host *host, struct mmc_request *req)
@@ -746,14 +790,14 @@ static inline void set_data_timeout(struct mmc_omap_host *host, struct mmc_reque
timeout = req->data->timeout_clks + req->data->timeout_ns / 500;
/* Check if we need to use timeout multiplier register */
- reg = OMAP_MMC_READ(host->base, SDIO);
+ reg = OMAP_MMC_READ(host, SDIO);
if (timeout > 0xffff) {
reg |= (1 << 5);
timeout /= 1024;
} else
reg &= ~(1 << 5);
- OMAP_MMC_WRITE(host->base, SDIO, reg);
- OMAP_MMC_WRITE(host->base, DTO, timeout);
+ OMAP_MMC_WRITE(host, SDIO, reg);
+ OMAP_MMC_WRITE(host, DTO, timeout);
}
static void
@@ -765,19 +809,18 @@ mmc_omap_prepare_data(struct mmc_omap_host *host, struct mmc_request *req)
host->data = data;
if (data == NULL) {
- OMAP_MMC_WRITE(host->base, BLEN, 0);
- OMAP_MMC_WRITE(host->base, NBLK, 0);
- OMAP_MMC_WRITE(host->base, BUF, 0);
+ OMAP_MMC_WRITE(host, BLEN, 0);
+ OMAP_MMC_WRITE(host, NBLK, 0);
+ OMAP_MMC_WRITE(host, BUF, 0);
host->dma_in_use = 0;
set_cmd_timeout(host, req);
return;
}
-
block_size = data->blksz;
- OMAP_MMC_WRITE(host->base, NBLK, data->blocks - 1);
- OMAP_MMC_WRITE(host->base, BLEN, block_size - 1);
+ OMAP_MMC_WRITE(host, NBLK, data->blocks - 1);
+ OMAP_MMC_WRITE(host, BLEN, block_size - 1);
set_data_timeout(host, req);
/* cope with calling layer confusion; it issues "single
@@ -819,7 +862,7 @@ mmc_omap_prepare_data(struct mmc_omap_host *host, struct mmc_request *req)
/* Revert to PIO? */
if (!use_dma) {
- OMAP_MMC_WRITE(host->base, BUF, 0x1f1f);
+ OMAP_MMC_WRITE(host, BUF, 0x1f1f);
host->total_bytes_left = data->blocks * block_size;
host->sg_len = sg_len;
mmc_omap_sg_to_buf(host);
@@ -845,7 +888,6 @@ static void mmc_omap_request(struct mmc_host *mmc, struct mmc_request *req)
static void innovator_fpga_socket_power(int on)
{
#if defined(CONFIG_MACH_OMAP_INNOVATOR) && defined(CONFIG_ARCH_OMAP15XX)
-
if (on) {
fpga_write(fpga_read(OMAP1510_FPGA_POWER) | (1 << 3),
OMAP1510_FPGA_POWER);
@@ -871,8 +913,8 @@ static void mmc_omap_power(struct mmc_omap_host *host, int on)
/* GPIO 4 of TPS65010 sends SD_EN signal */
tps65010_set_gpio_out_value(GPIO4, HIGH);
else if (cpu_is_omap24xx()) {
- u16 reg = OMAP_MMC_READ(host->base, CON);
- OMAP_MMC_WRITE(host->base, CON, reg | (1 << 11));
+ u16 reg = OMAP_MMC_READ(host, CON);
+ OMAP_MMC_WRITE(host, CON, reg | (1 << 11));
} else
if (host->power_pin >= 0)
omap_set_gpio_dataout(host->power_pin, 1);
@@ -884,8 +926,8 @@ static void mmc_omap_power(struct mmc_omap_host *host, int on)
else if (machine_is_omap_h3())
tps65010_set_gpio_out_value(GPIO4, LOW);
else if (cpu_is_omap24xx()) {
- u16 reg = OMAP_MMC_READ(host->base, CON);
- OMAP_MMC_WRITE(host->base, CON, reg & ~(1 << 11));
+ u16 reg = OMAP_MMC_READ(host, CON);
+ OMAP_MMC_WRITE(host, CON, reg & ~(1 << 11));
} else
if (host->power_pin >= 0)
omap_set_gpio_dataout(host->power_pin, 0);
@@ -927,7 +969,7 @@ static void mmc_omap_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
case MMC_POWER_UP:
case MMC_POWER_ON:
mmc_omap_power(host, 1);
- dsor |= 1<<11;
+ dsor |= 1 << 11;
break;
}
@@ -941,14 +983,14 @@ static void mmc_omap_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
* which results in the while loop below getting stuck.
* Writing to the CON register twice seems to do the trick. */
for (i = 0; i < 2; i++)
- OMAP_MMC_WRITE(host->base, CON, dsor);
+ OMAP_MMC_WRITE(host, CON, dsor);
if (ios->power_mode == MMC_POWER_UP) {
/* Send clock cycles, poll completion */
- OMAP_MMC_WRITE(host->base, IE, 0);
- OMAP_MMC_WRITE(host->base, STAT, 0xffff);
- OMAP_MMC_WRITE(host->base, CMD, 1<<7);
- while (0 == (OMAP_MMC_READ(host->base, STAT) & 1));
- OMAP_MMC_WRITE(host->base, STAT, 1);
+ OMAP_MMC_WRITE(host, IE, 0);
+ OMAP_MMC_WRITE(host, STAT, 0xffff);
+ OMAP_MMC_WRITE(host, CMD, 1 << 7);
+ while ((OMAP_MMC_READ(host, STAT) & 1) == 0);
+ OMAP_MMC_WRITE(host, STAT, 1);
}
clk_disable(host->fclk);
}
@@ -960,7 +1002,7 @@ static int mmc_omap_get_ro(struct mmc_host *mmc)
return host->wp_pin && omap_get_gpio_datain(host->wp_pin);
}
-static struct mmc_host_ops mmc_omap_ops = {
+static const struct mmc_host_ops mmc_omap_ops = {
.request = mmc_omap_request,
.set_ios = mmc_omap_set_ios,
.get_ro = mmc_omap_get_ro,
@@ -971,25 +1013,29 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
struct omap_mmc_conf *minfo = pdev->dev.platform_data;
struct mmc_host *mmc;
struct mmc_omap_host *host = NULL;
- struct resource *r;
+ struct resource *res;
int ret = 0;
int irq;
-
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+ if (minfo == NULL) {
+ dev_err(&pdev->dev, "platform data missing\n");
+ return -ENXIO;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
- if (!r || irq < 0)
+ if (res == NULL || irq < 0)
return -ENXIO;
- r = request_mem_region(pdev->resource[0].start,
- pdev->resource[0].end - pdev->resource[0].start + 1,
- pdev->name);
- if (!r)
+ res = request_mem_region(res->start, res->end - res->start + 1,
+ pdev->name);
+ if (res == NULL)
return -EBUSY;
mmc = mmc_alloc_host(sizeof(struct mmc_omap_host), &pdev->dev);
- if (!mmc) {
+ if (mmc == NULL) {
ret = -ENOMEM;
- goto out;
+ goto err_free_mem_region;
}
host = mmc_priv(mmc);
@@ -1001,13 +1047,13 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
host->dma_timer.data = (unsigned long) host;
host->id = pdev->id;
- host->res = r;
+ host->mem_res = res;
host->irq = irq;
if (cpu_is_omap24xx()) {
host->iclk = clk_get(&pdev->dev, "mmc_ick");
if (IS_ERR(host->iclk))
- goto out;
+ goto err_free_mmc_host;
clk_enable(host->iclk);
}
@@ -1018,7 +1064,7 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
if (IS_ERR(host->fclk)) {
ret = PTR_ERR(host->fclk);
- goto out;
+ goto err_free_iclk;
}
/* REVISIT:
@@ -1031,14 +1077,15 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
host->use_dma = 1;
host->dma_ch = -1;
- host->irq = pdev->resource[1].start;
- host->base = (void __iomem*)IO_ADDRESS(r->start);
+ host->irq = irq;
+ host->phys_base = host->mem_res->start;
+ host->virt_base = (void __iomem *) IO_ADDRESS(host->phys_base);
mmc->ops = &mmc_omap_ops;
mmc->f_min = 400000;
mmc->f_max = 24000000;
- mmc->ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34;
- mmc->caps = MMC_CAP_BYTEBLOCK;
+ mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
+ mmc->caps = MMC_CAP_MULTIWRITE | MMC_CAP_BYTEBLOCK;
if (minfo->wire4)
mmc->caps |= MMC_CAP_4_BIT_DATA;
@@ -1056,20 +1103,18 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
if ((ret = omap_request_gpio(host->power_pin)) != 0) {
dev_err(mmc_dev(host->mmc),
"Unable to get GPIO pin for MMC power\n");
- goto out;
+ goto err_free_fclk;
}
omap_set_gpio_direction(host->power_pin, 0);
}
ret = request_irq(host->irq, mmc_omap_irq, 0, DRIVER_NAME, host);
if (ret)
- goto out;
+ goto err_free_power_gpio;
host->dev = &pdev->dev;
platform_set_drvdata(pdev, host);
- mmc_add_host(mmc);
-
if (host->switch_pin >= 0) {
INIT_WORK(&host->switch_work, mmc_omap_switch_handler, host);
init_timer(&host->switch_timer);
@@ -1107,10 +1152,11 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
schedule_work(&host->switch_work);
}
-no_switch:
+ mmc_add_host(mmc);
+
return 0;
-out:
+no_switch:
/* FIXME: Free other resources too. */
if (host) {
if (host->iclk && !IS_ERR(host->iclk))
@@ -1119,6 +1165,20 @@ out:
clk_put(host->fclk);
mmc_free_host(host->mmc);
}
+err_free_power_gpio:
+ if (host->power_pin >= 0)
+ omap_free_gpio(host->power_pin);
+err_free_fclk:
+ clk_put(host->fclk);
+err_free_iclk:
+ if (host->iclk != NULL) {
+ clk_disable(host->iclk);
+ clk_put(host->iclk);
+ }
+err_free_mmc_host:
+ mmc_free_host(host->mmc);
+err_free_mem_region:
+ release_mem_region(res->start, res->end - res->start + 1);
return ret;
}
@@ -1128,30 +1188,31 @@ static int mmc_omap_remove(struct platform_device *pdev)
platform_set_drvdata(pdev, NULL);
- if (host) {
- mmc_remove_host(host->mmc);
- free_irq(host->irq, host);
-
- if (host->power_pin >= 0)
- omap_free_gpio(host->power_pin);
- if (host->switch_pin >= 0) {
- device_remove_file(&pdev->dev, &dev_attr_enable_poll);
- device_remove_file(&pdev->dev, &dev_attr_cover_switch);
- free_irq(OMAP_GPIO_IRQ(host->switch_pin), host);
- omap_free_gpio(host->switch_pin);
- host->switch_pin = -1;
- del_timer_sync(&host->switch_timer);
- flush_scheduled_work();
- }
- if (host->iclk && !IS_ERR(host->iclk))
- clk_put(host->iclk);
- if (host->fclk && !IS_ERR(host->fclk))
- clk_put(host->fclk);
- mmc_free_host(host->mmc);
+ BUG_ON(host == NULL);
+
+ mmc_remove_host(host->mmc);
+ free_irq(host->irq, host);
+
+ if (host->power_pin >= 0)
+ omap_free_gpio(host->power_pin);
+ if (host->switch_pin >= 0) {
+ device_remove_file(&pdev->dev, &dev_attr_enable_poll);
+ device_remove_file(&pdev->dev, &dev_attr_cover_switch);
+ free_irq(OMAP_GPIO_IRQ(host->switch_pin), host);
+ omap_free_gpio(host->switch_pin);
+ host->switch_pin = -1;
+ del_timer_sync(&host->switch_timer);
+ flush_scheduled_work();
}
+ if (host->iclk && !IS_ERR(host->iclk))
+ clk_put(host->iclk);
+ if (host->fclk && !IS_ERR(host->fclk))
+ clk_put(host->fclk);
release_mem_region(pdev->resource[0].start,
- pdev->resource[0].end - pdev->resource[0].start + 1);
+ pdev->resource[0].end - pdev->resource[0].start + 1);
+
+ mmc_free_host(host->mmc);
return 0;
}
diff --git a/drivers/mmc/omap.h b/drivers/mmc/omap.h
deleted file mode 100644
index c954d355a5e..00000000000
--- a/drivers/mmc/omap.h
+++ /dev/null
@@ -1,55 +0,0 @@
-#ifndef DRIVERS_MEDIA_MMC_OMAP_H
-#define DRIVERS_MEDIA_MMC_OMAP_H
-
-#define OMAP_MMC_REG_CMD 0x00
-#define OMAP_MMC_REG_ARGL 0x04
-#define OMAP_MMC_REG_ARGH 0x08
-#define OMAP_MMC_REG_CON 0x0c
-#define OMAP_MMC_REG_STAT 0x10
-#define OMAP_MMC_REG_IE 0x14
-#define OMAP_MMC_REG_CTO 0x18
-#define OMAP_MMC_REG_DTO 0x1c
-#define OMAP_MMC_REG_DATA 0x20
-#define OMAP_MMC_REG_BLEN 0x24
-#define OMAP_MMC_REG_NBLK 0x28
-#define OMAP_MMC_REG_BUF 0x2c
-#define OMAP_MMC_REG_SDIO 0x34
-#define OMAP_MMC_REG_REV 0x3c
-#define OMAP_MMC_REG_RSP0 0x40
-#define OMAP_MMC_REG_RSP1 0x44
-#define OMAP_MMC_REG_RSP2 0x48
-#define OMAP_MMC_REG_RSP3 0x4c
-#define OMAP_MMC_REG_RSP4 0x50
-#define OMAP_MMC_REG_RSP5 0x54
-#define OMAP_MMC_REG_RSP6 0x58
-#define OMAP_MMC_REG_RSP7 0x5c
-#define OMAP_MMC_REG_IOSR 0x60
-#define OMAP_MMC_REG_SYSC 0x64
-#define OMAP_MMC_REG_SYSS 0x68
-
-#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_READ(base, reg) __raw_readw((base) + OMAP_MMC_REG_##reg)
-#define OMAP_MMC_WRITE(base, reg, val) __raw_writew((val), (base) + OMAP_MMC_REG_##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
-
-#endif
diff --git a/drivers/mmc/pxamci.c b/drivers/mmc/pxamci.c
index a526698b8c9..471e9f4e053 100644
--- a/drivers/mmc/pxamci.c
+++ b/drivers/mmc/pxamci.c
@@ -393,7 +393,7 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
host->clkrt, host->cmdat);
}
-static struct mmc_host_ops pxamci_ops = {
+static const struct mmc_host_ops pxamci_ops = {
.request = pxamci_request,
.get_ro = pxamci_get_ro,
.set_ios = pxamci_set_ios,
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 9a7d39b7cdb..cd98117632d 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -616,6 +616,7 @@ static void sdhci_finish_command(struct sdhci_host *host)
static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
{
int div;
+ u8 ctrl;
u16 clk;
unsigned long timeout;
@@ -624,6 +625,13 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
writew(0, host->ioaddr + SDHCI_CLOCK_CONTROL);
+ ctrl = readb(host->ioaddr + SDHCI_HOST_CONTROL);
+ if (clock > 25000000)
+ ctrl |= SDHCI_CTRL_HISPD;
+ else
+ ctrl &= ~SDHCI_CTRL_HISPD;
+ writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL);
+
if (clock == 0)
goto out;
@@ -784,7 +792,7 @@ static int sdhci_get_ro(struct mmc_host *mmc)
return !(present & SDHCI_WRITE_PROTECT);
}
-static struct mmc_host_ops sdhci_ops = {
+static const struct mmc_host_ops sdhci_ops = {
.request = sdhci_request,
.set_ios = sdhci_set_ios,
.get_ro = sdhci_get_ro,
@@ -1291,6 +1299,13 @@ static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot)
else if (caps & SDHCI_CAN_VDD_180)
mmc->ocr_avail |= MMC_VDD_17_18|MMC_VDD_18_19;
+ if ((host->max_clk > 25000000) && !(caps & SDHCI_CAN_DO_HISPD)) {
+ printk(KERN_ERR "%s: Controller reports > 25 MHz base clock,"
+ " but no high speed support.\n",
+ host->slot_descr);
+ mmc->f_max = 25000000;
+ }
+
if (mmc->ocr_avail == 0) {
printk(KERN_ERR "%s: Hardware doesn't report any "
"support voltages.\n", host->slot_descr);
diff --git a/drivers/mmc/sdhci.h b/drivers/mmc/sdhci.h
index 72a67937afe..f9d1a0a6f03 100644
--- a/drivers/mmc/sdhci.h
+++ b/drivers/mmc/sdhci.h
@@ -71,6 +71,7 @@
#define SDHCI_HOST_CONTROL 0x28
#define SDHCI_CTRL_LED 0x01
#define SDHCI_CTRL_4BITBUS 0x02
+#define SDHCI_CTRL_HISPD 0x04
#define SDHCI_POWER_CONTROL 0x29
#define SDHCI_POWER_ON 0x01
@@ -138,6 +139,7 @@
#define SDHCI_CLOCK_BASE_SHIFT 8
#define SDHCI_MAX_BLOCK_MASK 0x00030000
#define SDHCI_MAX_BLOCK_SHIFT 16
+#define SDHCI_CAN_DO_HISPD 0x00200000
#define SDHCI_CAN_DO_DMA 0x00400000
#define SDHCI_CAN_VDD_330 0x01000000
#define SDHCI_CAN_VDD_300 0x02000000
diff --git a/drivers/mmc/tifm_sd.c b/drivers/mmc/tifm_sd.c
index 0fdc55b08a6..e846499a004 100644
--- a/drivers/mmc/tifm_sd.c
+++ b/drivers/mmc/tifm_sd.c
@@ -99,7 +99,7 @@ struct tifm_sd {
struct mmc_request *req;
struct work_struct cmd_handler;
- struct work_struct abort_handler;
+ struct delayed_work abort_handler;
wait_queue_head_t can_eject;
size_t written_blocks;
@@ -496,9 +496,9 @@ err_out:
mmc_request_done(mmc, mrq);
}
-static void tifm_sd_end_cmd(void *data)
+static void tifm_sd_end_cmd(struct work_struct *work)
{
- struct tifm_sd *host = data;
+ struct tifm_sd *host = container_of(work, struct tifm_sd, cmd_handler);
struct tifm_dev *sock = host->dev;
struct mmc_host *mmc = tifm_get_drvdata(sock);
struct mmc_request *mrq;
@@ -608,9 +608,9 @@ err_out:
mmc_request_done(mmc, mrq);
}
-static void tifm_sd_end_cmd_nodma(void *data)
+static void tifm_sd_end_cmd_nodma(struct work_struct *work)
{
- struct tifm_sd *host = (struct tifm_sd*)data;
+ struct tifm_sd *host = container_of(work, struct tifm_sd, cmd_handler);
struct tifm_dev *sock = host->dev;
struct mmc_host *mmc = tifm_get_drvdata(sock);
struct mmc_request *mrq;
@@ -661,11 +661,14 @@ static void tifm_sd_end_cmd_nodma(void *data)
mmc_request_done(mmc, mrq);
}
-static void tifm_sd_abort(void *data)
+static void tifm_sd_abort(struct work_struct *work)
{
+ struct tifm_sd *host =
+ container_of(work, struct tifm_sd, abort_handler.work);
+
printk(KERN_ERR DRIVER_NAME
": card failed to respond for a long period of time");
- tifm_eject(((struct tifm_sd*)data)->dev);
+ tifm_eject(host->dev);
}
static void tifm_sd_ios(struct mmc_host *mmc, struct mmc_ios *ios)
@@ -762,9 +765,9 @@ static struct mmc_host_ops tifm_sd_ops = {
.get_ro = tifm_sd_ro
};
-static void tifm_sd_register_host(void *data)
+static void tifm_sd_register_host(struct work_struct *work)
{
- struct tifm_sd *host = (struct tifm_sd*)data;
+ struct tifm_sd *host = container_of(work, struct tifm_sd, cmd_handler);
struct tifm_dev *sock = host->dev;
struct mmc_host *mmc = tifm_get_drvdata(sock);
unsigned long flags;
@@ -772,8 +775,7 @@ static void tifm_sd_register_host(void *data)
spin_lock_irqsave(&sock->lock, flags);
host->flags |= HOST_REG;
PREPARE_WORK(&host->cmd_handler,
- no_dma ? tifm_sd_end_cmd_nodma : tifm_sd_end_cmd,
- data);
+ no_dma ? tifm_sd_end_cmd_nodma : tifm_sd_end_cmd);
spin_unlock_irqrestore(&sock->lock, flags);
dev_dbg(&sock->dev, "adding host\n");
mmc_add_host(mmc);
@@ -799,8 +801,8 @@ static int tifm_sd_probe(struct tifm_dev *sock)
host->dev = sock;
host->clk_div = 61;
init_waitqueue_head(&host->can_eject);
- INIT_WORK(&host->cmd_handler, tifm_sd_register_host, host);
- INIT_WORK(&host->abort_handler, tifm_sd_abort, host);
+ INIT_WORK(&host->cmd_handler, tifm_sd_register_host);
+ INIT_DELAYED_WORK(&host->abort_handler, tifm_sd_abort);
tifm_set_drvdata(sock, mmc);
sock->signal_irq = tifm_sd_signal_irq;
diff --git a/drivers/mmc/wbsd.c b/drivers/mmc/wbsd.c
index ced309b37a8..7a282672f8e 100644
--- a/drivers/mmc/wbsd.c
+++ b/drivers/mmc/wbsd.c
@@ -1021,7 +1021,7 @@ static int wbsd_get_ro(struct mmc_host *mmc)
return csr & WBSD_WRPT;
}
-static struct mmc_host_ops wbsd_ops = {
+static const struct mmc_host_ops wbsd_ops = {
.request = wbsd_request,
.set_ios = wbsd_set_ios,
.get_ro = wbsd_get_ro,
@@ -1488,7 +1488,7 @@ static void __devinit wbsd_request_dma(struct wbsd_host *host, int dma)
/*
* Translate the address to a physical address.
*/
- host->dma_addr = dma_map_single(host->mmc->dev, host->dma_buffer,
+ host->dma_addr = dma_map_single(mmc_dev(host->mmc), host->dma_buffer,
WBSD_DMA_SIZE, DMA_BIDIRECTIONAL);
/*
@@ -1512,7 +1512,7 @@ kfree:
*/
BUG_ON(1);
- dma_unmap_single(host->mmc->dev, host->dma_addr,
+ dma_unmap_single(mmc_dev(host->mmc), host->dma_addr,
WBSD_DMA_SIZE, DMA_BIDIRECTIONAL);
host->dma_addr = (dma_addr_t)NULL;
@@ -1530,7 +1530,7 @@ err:
static void __devexit wbsd_release_dma(struct wbsd_host *host)
{
if (host->dma_addr) {
- dma_unmap_single(host->mmc->dev, host->dma_addr,
+ dma_unmap_single(mmc_dev(host->mmc), host->dma_addr,
WBSD_DMA_SIZE, DMA_BIDIRECTIONAL);
}
kfree(host->dma_buffer);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 09:26:30 +0000