* linux/drivers/mmc/host/omap.c
*
* Copyright (C) 2004 Nokia Corporation
- * Written by Tuukka Tikkanen and Juha Yrjölä<juha.yrjola@nokia.com>
+ * Written by Tuukka Tikkanen and Juha Yrj�l�<juha.yrjola@nokia.com>
* Misc hacks here and there by Tony Lindgren <tony@atomide.com>
* Other hacks (DMA, SD, etc) by David Brownell
*
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
+#include <linux/mmc/mmc.h>
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
#include <linux/clk.h>
#include <asm/mach-types.h>
#include <asm/arch/board.h>
+#include <asm/arch/mmc.h>
#include <asm/arch/gpio.h>
#include <asm/arch/dma.h>
#include <asm/arch/mux.h>
#include <asm/arch/fpga.h>
+#include <asm/arch/board-sx1.h>
#define OMAP_MMC_REG_CMD 0x00
#define OMAP_MMC_REG_ARGL 0x04
/* Specifies how often in millisecs to poll for card status changes
* when the cover switch is open */
-#define OMAP_MMC_SWITCH_POLL_DELAY 500
-
-static int mmc_omap_enable_poll = 1;
+#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;
+ struct mmc_host *mmc;
+ struct omap_mmc_slot_data *pdata;
+};
struct mmc_omap_host {
int initialized;
unsigned char bus_mode;
unsigned char hw_bus_mode;
+ struct work_struct cmd_abort_work;
+ unsigned abort:1;
+ struct timer_list cmd_abort_timer;
+
+ struct work_struct slot_release_work;
+ struct mmc_omap_slot *next_slot;
+ struct work_struct send_stop_work;
+ struct mmc_data *stop_data;
+
unsigned int sg_len;
int sg_idx;
u16 * buffer;
unsigned dma_len;
short power_pin;
- short wp_pin;
- int switch_pin;
- struct work_struct switch_work;
- struct timer_list switch_timer;
- int switch_last_state;
+ struct mmc_omap_slot *slots[OMAP_MMC_MAX_SLOTS];
+ struct mmc_omap_slot *current_slot;
+ spinlock_t slot_lock;
+ wait_queue_head_t slot_wq;
+ int nr_slots;
+
+ struct timer_list clk_timer;
+ spinlock_t clk_lock; /* for changing enabled state */
+ unsigned int fclk_enabled:1;
+
+ struct omap_mmc_platform_data *pdata;
};
-static inline int
-mmc_omap_cover_is_open(struct mmc_omap_host *host)
+void mmc_omap_fclk_offdelay(struct mmc_omap_slot *slot)
{
- if (host->switch_pin < 0)
- return 0;
- return omap_get_gpio_datain(host->switch_pin);
+ unsigned long tick_ns;
+
+ if (slot != NULL && slot->host->fclk_enabled && slot->fclk_freq > 0) {
+ tick_ns = (1000000000 + slot->fclk_freq - 1) / slot->fclk_freq;
+ ndelay(8 * tick_ns);
+ }
}
-static ssize_t
-mmc_omap_show_cover_switch(struct device *dev,
- struct device_attribute *attr, char *buf)
+void mmc_omap_fclk_enable(struct mmc_omap_host *host, unsigned int enable)
{
- struct mmc_omap_host *host = dev_get_drvdata(dev);
+ unsigned long flags;
- return sprintf(buf, "%s\n", mmc_omap_cover_is_open(host) ? "open" :
- "closed");
+ spin_lock_irqsave(&host->clk_lock, flags);
+ if (host->fclk_enabled != enable) {
+ host->fclk_enabled = enable;
+ if (enable)
+ clk_enable(host->fclk);
+ else
+ clk_disable(host->fclk);
+ }
+ spin_unlock_irqrestore(&host->clk_lock, flags);
}
-static DEVICE_ATTR(cover_switch, S_IRUGO, mmc_omap_show_cover_switch, NULL);
+static void mmc_omap_select_slot(struct mmc_omap_slot *slot, int claimed)
+{
+ struct mmc_omap_host *host = slot->host;
+ unsigned long flags;
+
+ if (claimed)
+ goto no_claim;
+ spin_lock_irqsave(&host->slot_lock, flags);
+ while (host->mmc != NULL) {
+ spin_unlock_irqrestore(&host->slot_lock, flags);
+ wait_event(host->slot_wq, host->mmc == NULL);
+ spin_lock_irqsave(&host->slot_lock, flags);
+ }
+ host->mmc = slot->mmc;
+ spin_unlock_irqrestore(&host->slot_lock, flags);
+no_claim:
+ del_timer(&host->clk_timer);
+ if (host->current_slot != slot || !claimed)
+ mmc_omap_fclk_offdelay(host->current_slot);
+
+ if (host->current_slot != slot) {
+ OMAP_MMC_WRITE(host, CON, slot->saved_con & 0xFC00);
+ if (host->pdata->switch_slot != NULL)
+ host->pdata->switch_slot(mmc_dev(slot->mmc), slot->id);
+ host->current_slot = slot;
+ }
+
+ if (claimed) {
+ mmc_omap_fclk_enable(host, 1);
+
+ /* Doing the dummy read here seems to work around some bug
+ * at least in OMAP24xx silicon where the command would not
+ * start after writing the CMD register. Sigh. */
+ OMAP_MMC_READ(host, CON);
+
+ OMAP_MMC_WRITE(host, CON, slot->saved_con);
+ } else
+ mmc_omap_fclk_enable(host, 0);
+}
+
+static void mmc_omap_start_request(struct mmc_omap_host *host,
+ struct mmc_request *req);
+
+static void mmc_omap_slot_release_work(struct work_struct *work)
+{
+ struct mmc_omap_host *host = container_of(work, struct mmc_omap_host,
+ slot_release_work);
+ struct mmc_omap_slot *next_slot = host->next_slot;
+ struct mmc_request *rq;
+
+ host->next_slot = NULL;
+ mmc_omap_select_slot(next_slot, 1);
+
+ rq = next_slot->mrq;
+ next_slot->mrq = NULL;
+ mmc_omap_start_request(host, rq);
+}
+
+static void mmc_omap_release_slot(struct mmc_omap_slot *slot, int clk_enabled)
+{
+ struct mmc_omap_host *host = slot->host;
+ unsigned long flags;
+ int i;
+
+ BUG_ON(slot == NULL || host->mmc == NULL);
+
+ if (clk_enabled)
+ /* Keeps clock running for at least 8 cycles on valid freq */
+ mod_timer(&host->clk_timer, jiffies + HZ/10);
+ else {
+ del_timer(&host->clk_timer);
+ mmc_omap_fclk_offdelay(slot);
+ mmc_omap_fclk_enable(host, 0);
+ }
+
+ spin_lock_irqsave(&host->slot_lock, flags);
+ /* Check for any pending requests */
+ for (i = 0; i < host->nr_slots; i++) {
+ struct mmc_omap_slot *new_slot;
+
+ if (host->slots[i] == NULL || host->slots[i]->mrq == NULL)
+ continue;
+
+ BUG_ON(host->next_slot != NULL);
+ new_slot = host->slots[i];
+ /* The current slot should not have a request in queue */
+ BUG_ON(new_slot == host->current_slot);
+
+ host->next_slot = new_slot;
+ host->mmc = new_slot->mmc;
+ spin_unlock_irqrestore(&host->slot_lock, flags);
+ schedule_work(&host->slot_release_work);
+ return;
+ }
+
+ host->mmc = NULL;
+ wake_up(&host->slot_wq);
+ spin_unlock_irqrestore(&host->slot_lock, flags);
+}
+
+static inline
+int mmc_omap_cover_is_open(struct mmc_omap_slot *slot)
+{
+ if (slot->pdata->get_cover_state)
+ return slot->pdata->get_cover_state(mmc_dev(slot->mmc), slot->id);
+ return 0;
+}
static ssize_t
-mmc_omap_show_enable_poll(struct device *dev,
- struct device_attribute *attr, char *buf)
+mmc_omap_show_cover_switch(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d\n", mmc_omap_enable_poll);
+ struct mmc_host *mmc = container_of(dev, struct mmc_host, class_dev);
+ struct mmc_omap_slot *slot = mmc_priv(mmc);
+
+ return sprintf(buf, "%s\n", mmc_omap_cover_is_open(slot) ? "open" :
+ "closed");
}
+static DEVICE_ATTR(cover_switch, S_IRUGO, mmc_omap_show_cover_switch, NULL);
+
+/* Access to the R/O switch is required for production testing
+ * purposes. */
static ssize_t
-mmc_omap_store_enable_poll(struct device *dev,
- struct device_attribute *attr, const char *buf,
- size_t size)
+mmc_omap_show_ro(struct device *dev, struct device_attribute *attr, char *buf)
{
- int enable_poll;
+ struct mmc_host *mmc = container_of(dev, struct mmc_host, class_dev);
+ struct mmc_omap_slot *slot = mmc_priv(mmc);
+
+ return sprintf(buf, "%d\n", slot->pdata->get_ro(mmc_dev(mmc),
+ slot->id));
+}
- if (sscanf(buf, "%10d", &enable_poll) != 1)
- return -EINVAL;
+static DEVICE_ATTR(ro, S_IRUGO, mmc_omap_show_ro, NULL);
- if (enable_poll != mmc_omap_enable_poll) {
- struct mmc_omap_host *host = dev_get_drvdata(dev);
+static ssize_t
+mmc_omap_show_slot_name(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct mmc_host *mmc = container_of(dev, struct mmc_host, class_dev);
+ struct mmc_omap_slot *slot = mmc_priv(mmc);
- mmc_omap_enable_poll = enable_poll;
- if (enable_poll && host->switch_pin >= 0)
- schedule_work(&host->switch_work);
- }
- return size;
+ return sprintf(buf, "%s\n", slot->pdata->name);
}
-static DEVICE_ATTR(enable_poll, 0664,
- mmc_omap_show_enable_poll, mmc_omap_store_enable_poll);
+static DEVICE_ATTR(slot_name, S_IRUGO, mmc_omap_show_slot_name, NULL);
static void
mmc_omap_start_command(struct mmc_omap_host *host, struct mmc_command *cmd)
cmdreg = cmd->opcode | (resptype << 8) | (cmdtype << 12);
- if (host->bus_mode == MMC_BUSMODE_OPENDRAIN)
+ if (host->current_slot->bus_mode == MMC_BUSMODE_OPENDRAIN)
cmdreg |= 1 << 6;
if (cmd->flags & MMC_RSP_BUSY)
if (host->data && !(host->data->flags & MMC_DATA_WRITE))
cmdreg |= 1 << 15;
- clk_enable(host->fclk);
+ mod_timer(&host->cmd_abort_timer, jiffies + HZ/2);
OMAP_MMC_WRITE(host, CTO, 200);
OMAP_MMC_WRITE(host, ARGL, cmd->arg & 0xffff);
OMAP_MMC_WRITE(host, CMD, cmdreg);
}
+static void
+mmc_omap_release_dma(struct mmc_omap_host *host, struct mmc_data *data,
+ int abort)
+{
+ enum dma_data_direction dma_data_dir;
+
+ BUG_ON(host->dma_ch < 0);
+ if (data->error)
+ omap_stop_dma(host->dma_ch);
+ /* Release DMA channel lazily */
+ mod_timer(&host->dma_timer, jiffies + HZ);
+ if (data->flags & MMC_DATA_WRITE)
+ dma_data_dir = DMA_TO_DEVICE;
+ else
+ dma_data_dir = DMA_FROM_DEVICE;
+ dma_unmap_sg(mmc_dev(host->mmc), data->sg, host->sg_len,
+ dma_data_dir);
+}
+
+static void mmc_omap_send_stop_work(struct work_struct *work)
+{
+ struct mmc_omap_host *host = container_of(work, struct mmc_omap_host,
+ send_stop_work);
+ struct mmc_omap_slot *slot = host->current_slot;
+ struct mmc_data *data = host->stop_data;
+ unsigned long tick_ns;
+
+ tick_ns = (1000000000 + slot->fclk_freq - 1)/slot->fclk_freq;
+ ndelay(8*tick_ns);
+
+ mmc_omap_start_command(host, data->stop);
+}
+
static void
mmc_omap_xfer_done(struct mmc_omap_host *host, struct mmc_data *data)
{
- if (host->dma_in_use) {
- enum dma_data_direction dma_data_dir;
-
- BUG_ON(host->dma_ch < 0);
- if (data->error)
- omap_stop_dma(host->dma_ch);
- /* Release DMA channel lazily */
- mod_timer(&host->dma_timer, jiffies + HZ);
- if (data->flags & MMC_DATA_WRITE)
- dma_data_dir = DMA_TO_DEVICE;
- else
- dma_data_dir = DMA_FROM_DEVICE;
- dma_unmap_sg(mmc_dev(host->mmc), data->sg, host->sg_len,
- dma_data_dir);
- }
+ if (host->dma_in_use)
+ mmc_omap_release_dma(host, data, data->error);
+
host->data = NULL;
host->sg_len = 0;
- clk_disable(host->fclk);
/* NOTE: MMC layer will sometimes poll-wait CMD13 next, issuing
* dozens of requests until the card finishes writing data.
*/
if (!data->stop) {
+ struct mmc_host *mmc;
+
host->mrq = NULL;
- mmc_request_done(host->mmc, data->mrq);
+ mmc = host->mmc;
+ mmc_omap_release_slot(host->current_slot, 1);
+ mmc_request_done(mmc, data->mrq);
return;
}
- mmc_omap_start_command(host, data->stop);
+ host->stop_data = data;
+ schedule_work(&host->send_stop_work);
+}
+
+static void
+mmc_omap_send_abort(struct mmc_omap_host *host, int maxloops)
+{
+ struct mmc_omap_slot *slot = host->current_slot;
+ unsigned int restarts, passes, timeout;
+ u16 stat = 0;
+
+ /* Sending abort takes 80 clocks. Have some extra and round up */
+ timeout = (120*1000000 + slot->fclk_freq - 1)/slot->fclk_freq;
+ restarts = 0;
+ while (restarts < maxloops) {
+ OMAP_MMC_WRITE(host, STAT, 0xFFFF);
+ OMAP_MMC_WRITE(host, CMD, (3 << 12) | (1 << 7));
+
+ passes = 0;
+ while (passes < timeout) {
+ stat = OMAP_MMC_READ(host, STAT);
+ if (stat & OMAP_MMC_STAT_END_OF_CMD)
+ goto out;
+ udelay(1);
+ passes++;
+ }
+
+ restarts++;
+ }
+out:
+ OMAP_MMC_WRITE(host, STAT, stat);
+}
+
+static void
+mmc_omap_abort_xfer(struct mmc_omap_host *host, struct mmc_data *data)
+{
+ if (host->dma_in_use)
+ mmc_omap_release_dma(host, data, 1);
+
+ host->data = NULL;
+ host->sg_len = 0;
+
+ mmc_omap_send_abort(host, 10000);
}
static void
{
host->cmd = NULL;
+ del_timer(&host->cmd_abort_timer);
+
if (cmd->flags & MMC_RSP_PRESENT) {
if (cmd->flags & MMC_RSP_136) {
/* response type 2 */
}
if (host->data == NULL || cmd->error) {
+ struct mmc_host *mmc;
+
+ if (host->data != NULL)
+ mmc_omap_abort_xfer(host, host->data);
host->mrq = NULL;
- clk_disable(host->fclk);
- mmc_request_done(host->mmc, cmd->mrq);
+ mmc = host->mmc;
+ mmc_omap_release_slot(host->current_slot, 1);
+ mmc_request_done(mmc, cmd->mrq);
}
}
+/*
+ * Abort stuck command. Can occur when card is removed while it is being
+ * read.
+ */
+static void mmc_omap_abort_command(struct work_struct *work)
+{
+ struct mmc_omap_host *host = container_of(work, struct mmc_omap_host,
+ cmd_abort_work);
+ BUG_ON(!host->cmd);
+
+ dev_dbg(mmc_dev(host->mmc), "Aborting stuck command CMD%d\n",
+ host->cmd->opcode);
+
+ if (host->cmd->error == 0)
+ host->cmd->error = -ETIMEDOUT;
+
+ if (host->data == NULL) {
+ struct mmc_command *cmd;
+ struct mmc_host *mmc;
+
+ cmd = host->cmd;
+ host->cmd = NULL;
+ mmc_omap_send_abort(host, 10000);
+
+ host->mrq = NULL;
+ mmc = host->mmc;
+ mmc_omap_release_slot(host->current_slot, 1);
+ mmc_request_done(mmc, cmd->mrq);
+ } else
+ mmc_omap_cmd_done(host, host->cmd);
+
+ host->abort = 0;
+ enable_irq(host->irq);
+}
+
+static void
+mmc_omap_cmd_timer(unsigned long data)
+{
+ struct mmc_omap_host *host = (struct mmc_omap_host *) data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&host->slot_lock, flags);
+ if (host->cmd != NULL && !host->abort) {
+ OMAP_MMC_WRITE(host, IE, 0);
+ disable_irq(host->irq);
+ host->abort = 1;
+ schedule_work(&host->cmd_abort_work);
+ }
+ spin_unlock_irqrestore(&host->slot_lock, flags);
+}
+
/* PIO only */
static void
mmc_omap_sg_to_buf(struct mmc_omap_host *host)
host->buffer_bytes_left = host->total_bytes_left;
}
+static void
+mmc_omap_clk_timer(unsigned long data)
+{
+ struct mmc_omap_host *host = (struct mmc_omap_host *) data;
+
+ mmc_omap_fclk_enable(host, 0);
+}
+
/* PIO only */
static void
mmc_omap_xfer_data(struct mmc_omap_host *host, int write)
u16 status;
int end_command;
int end_transfer;
- int transfer_error;
+ int transfer_error, cmd_error;
if (host->cmd == NULL && host->data == NULL) {
status = OMAP_MMC_READ(host, STAT);
- dev_info(mmc_dev(host->mmc),"spurious irq 0x%04x\n", status);
+ dev_info(mmc_dev(host->slots[0]->mmc),
+ "Spurious IRQ 0x%04x\n", status);
if (status != 0) {
OMAP_MMC_WRITE(host, STAT, status);
OMAP_MMC_WRITE(host, IE, 0);
end_command = 0;
end_transfer = 0;
transfer_error = 0;
+ cmd_error = 0;
while ((status = OMAP_MMC_READ(host, STAT)) != 0) {
+ int cmd;
+
OMAP_MMC_WRITE(host, STAT, status);
+ if (host->cmd != NULL)
+ cmd = host->cmd->opcode;
+ else
+ cmd = -1;
#ifdef CONFIG_MMC_DEBUG
dev_dbg(mmc_dev(host->mmc), "MMC IRQ %04x (CMD %d): ",
- status, host->cmd != NULL ? host->cmd->opcode : -1);
+ status, cmd);
mmc_omap_report_irq(status);
printk("\n");
#endif
mmc_omap_xfer_data(host, 1);
}
- if (status & OMAP_MMC_STAT_END_OF_DATA) {
+ if (status & OMAP_MMC_STAT_END_OF_DATA)
end_transfer = 1;
- }
if (status & OMAP_MMC_STAT_DATA_TOUT) {
- dev_dbg(mmc_dev(host->mmc), "data timeout\n");
+ dev_dbg(mmc_dev(host->mmc), "data timeout (CMD%d)\n",
+ cmd);
if (host->data) {
host->data->error = -ETIMEDOUT;
transfer_error = 1;
if (status & OMAP_MMC_STAT_CMD_TOUT) {
/* Timeouts are routine with some commands */
if (host->cmd) {
+ struct mmc_omap_slot *slot =
+ host->current_slot;
if (host->cmd->opcode != MMC_ALL_SEND_CID &&
- host->cmd->opcode !=
- MMC_SEND_OP_COND &&
- host->cmd->opcode !=
- MMC_APP_CMD &&
- !mmc_omap_cover_is_open(host))
+ host->cmd->opcode != MMC_SEND_OP_COND &&
+ host->cmd->opcode != MMC_APP_CMD &&
+ (slot == NULL ||
+ !mmc_omap_cover_is_open(slot)))
dev_err(mmc_dev(host->mmc),
- "command timeout, CMD %d\n",
- host->cmd->opcode);
+ "command timeout (CMD%d)\n",
+ cmd);
host->cmd->error = -ETIMEDOUT;
end_command = 1;
+ cmd_error = 1;
}
}
if (host->cmd) {
dev_err(mmc_dev(host->mmc),
"command CRC error (CMD%d, arg 0x%08x)\n",
- host->cmd->opcode, host->cmd->arg);
+ cmd, host->cmd->arg);
host->cmd->error = -EILSEQ;
end_command = 1;
+ cmd_error = 1;
} else
dev_err(mmc_dev(host->mmc),
"command CRC error without cmd?\n");
if (status & OMAP_MMC_STAT_CARD_ERR) {
dev_dbg(mmc_dev(host->mmc),
"ignoring card status error (CMD%d)\n",
- host->cmd->opcode);
+ cmd);
end_command = 1;
}
/*
* NOTE: On 1610 the END_OF_CMD may come too early when
- * starting a write
+ * starting a write
*/
if ((status & OMAP_MMC_STAT_END_OF_CMD) &&
(!(status & OMAP_MMC_STAT_A_EMPTY))) {
}
}
- if (end_command) {
+ if (cmd_error && host->data) {
+ del_timer(&host->cmd_abort_timer);
+ host->abort = 1;
+ OMAP_MMC_WRITE(host, IE, 0);
+ disable_irq(host->irq);
+ schedule_work(&host->cmd_abort_work);
+ return IRQ_HANDLED;
+ }
+
+ if (end_command)
mmc_omap_cmd_done(host, host->cmd);
+ if (host->data != NULL) {
+ if (transfer_error)
+ mmc_omap_xfer_done(host, host->data);
+ else if (end_transfer)
+ mmc_omap_end_of_data(host, host->data);
}
- if (transfer_error)
- mmc_omap_xfer_done(host, host->data);
- else if (end_transfer)
- mmc_omap_end_of_data(host, host->data);
return IRQ_HANDLED;
}
-static irqreturn_t mmc_omap_switch_irq(int irq, void *dev_id)
+void omap_mmc_notify_cover_event(struct device *dev, int num, int is_closed)
{
- struct mmc_omap_host *host = (struct mmc_omap_host *) dev_id;
+ int cover_open;
+ struct mmc_omap_host *host = dev_get_drvdata(dev);
+ struct mmc_omap_slot *slot = host->slots[num];
- schedule_work(&host->switch_work);
+ BUG_ON(num >= host->nr_slots);
- return IRQ_HANDLED;
+ /* Other subsystems can call in here before we're initialised. */
+ if (host->nr_slots == 0 || !host->slots[num])
+ return;
+
+ cover_open = mmc_omap_cover_is_open(slot);
+ if (cover_open != slot->cover_open) {
+ slot->cover_open = cover_open;
+ sysfs_notify(&slot->mmc->class_dev.kobj, NULL, "cover_switch");
+ }
+
+ tasklet_hi_schedule(&slot->cover_tasklet);
}
-static void mmc_omap_switch_timer(unsigned long arg)
+static void mmc_omap_cover_timer(unsigned long arg)
{
- struct mmc_omap_host *host = (struct mmc_omap_host *) arg;
-
- schedule_work(&host->switch_work);
+ struct mmc_omap_slot *slot = (struct mmc_omap_slot *) arg;
+ tasklet_schedule(&slot->cover_tasklet);
}
-static void mmc_omap_switch_handler(struct work_struct *work)
+static void mmc_omap_cover_handler(unsigned long param)
{
- struct mmc_omap_host *host = container_of(work, struct mmc_omap_host, switch_work);
- struct mmc_card *card;
- static int complained = 0;
- int cards = 0, cover_open;
+ struct mmc_omap_slot *slot = (struct mmc_omap_slot *)param;
+ int cover_open = mmc_omap_cover_is_open(slot);
- if (host->switch_pin == -1)
+ mmc_detect_change(slot->mmc, 0);
+ if (!cover_open)
return;
- cover_open = mmc_omap_cover_is_open(host);
- if (cover_open != host->switch_last_state) {
- kobject_uevent(&host->dev->kobj, KOBJ_CHANGE);
- host->switch_last_state = cover_open;
- }
- mmc_detect_change(host->mmc, 0);
- list_for_each_entry(card, &host->mmc->cards, node) {
- if (mmc_card_present(card))
- cards++;
- }
- if (mmc_omap_cover_is_open(host)) {
- if (!complained) {
- dev_info(mmc_dev(host->mmc), "cover is open\n");
- complained = 1;
- }
- if (mmc_omap_enable_poll)
- mod_timer(&host->switch_timer, jiffies +
- msecs_to_jiffies(OMAP_MMC_SWITCH_POLL_DELAY));
- } else {
- complained = 0;
- }
+
+ /*
+ * If no card is inserted, we postpone polling until
+ * the cover has been closed.
+ */
+ if (slot->mmc->card == NULL || !mmc_card_present(slot->mmc->card))
+ return;
+
+ mod_timer(&slot->cover_timer,
+ jiffies + msecs_to_jiffies(OMAP_MMC_COVER_POLL_DELAY));
}
/* Prepare to transfer the next segment of a scatterlist */
static inline void set_data_timeout(struct mmc_omap_host *host, struct mmc_request *req)
{
- int timeout;
+ unsigned int timeout, cycle_ns;
u16 reg;
- /* Convert ns to clock cycles by assuming 20MHz frequency
- * 1 cycle at 20MHz = 500 ns
- */
- timeout = req->data->timeout_clks + req->data->timeout_ns / 500;
+ cycle_ns = 1000000000 / host->current_slot->fclk_freq;
+ timeout = req->data->timeout_ns / cycle_ns;
+ timeout += req->data->timeout_clks;
/* Check if we need to use timeout multiplier register */
reg = OMAP_MMC_READ(host, SDIO);
}
}
-static void mmc_omap_request(struct mmc_host *mmc, struct mmc_request *req)
+static void mmc_omap_start_request(struct mmc_omap_host *host,
+ struct mmc_request *req)
{
- struct mmc_omap_host *host = mmc_priv(mmc);
-
- WARN_ON(host->mrq != NULL);
+ BUG_ON(host->mrq != NULL);
host->mrq = req;
mmc_omap_start_command(host, req->cmd);
if (host->dma_in_use)
omap_start_dma(host->dma_ch);
+ BUG_ON(irqs_disabled());
}
-static void innovator_fpga_socket_power(int on)
+static void mmc_omap_request(struct mmc_host *mmc, struct mmc_request *req)
{
-#if defined(CONFIG_MACH_OMAP_INNOVATOR) && defined(CONFIG_ARCH_OMAP15XX)
- if (on) {
- fpga_write(fpga_read(OMAP1510_FPGA_POWER) | (1 << 3),
- OMAP1510_FPGA_POWER);
- } else {
- fpga_write(fpga_read(OMAP1510_FPGA_POWER) & ~(1 << 3),
- OMAP1510_FPGA_POWER);
- }
-#endif
+ struct mmc_omap_slot *slot = mmc_priv(mmc);
+ struct mmc_omap_host *host = slot->host;
+ unsigned long flags;
+
+ spin_lock_irqsave(&host->slot_lock, flags);
+ if (host->mmc != NULL) {
+ BUG_ON(slot->mrq != NULL);
+ slot->mrq = req;
+ spin_unlock_irqrestore(&host->slot_lock, flags);
+ return;
+ } else
+ host->mmc = mmc;
+ spin_unlock_irqrestore(&host->slot_lock, flags);
+ mmc_omap_select_slot(slot, 1);
+ mmc_omap_start_request(host, req);
}
-/*
- * Turn the socket power on/off. Innovator uses FPGA, most boards
- * probably use GPIO.
- */
-static void mmc_omap_power(struct mmc_omap_host *host, int on)
+static void mmc_omap_set_power(struct mmc_omap_slot *slot, int power_on,
+ int vdd)
{
- if (on) {
- if (machine_is_omap_innovator())
- innovator_fpga_socket_power(1);
- else if (machine_is_omap_h2())
- tps65010_set_gpio_out_value(GPIO3, HIGH);
- else if (machine_is_omap_h3())
- /* 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, CON);
- OMAP_MMC_WRITE(host, CON, reg | (1 << 11));
- } else
- if (host->power_pin >= 0)
- omap_set_gpio_dataout(host->power_pin, 1);
- } else {
- if (machine_is_omap_innovator())
- innovator_fpga_socket_power(0);
- else if (machine_is_omap_h2())
- tps65010_set_gpio_out_value(GPIO3, LOW);
- else if (machine_is_omap_h3())
- tps65010_set_gpio_out_value(GPIO4, LOW);
- else if (cpu_is_omap24xx()) {
- 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);
+ struct mmc_omap_host *host;
+
+ host = slot->host;
+
+ if (slot->pdata->set_power != NULL)
+ slot->pdata->set_power(mmc_dev(slot->mmc), slot->id, power_on,
+ vdd);
+
+ if (cpu_is_omap24xx()) {
+ u16 w;
+
+ if (power_on) {
+ w = OMAP_MMC_READ(host, CON);
+ OMAP_MMC_WRITE(host, CON, w | (1 << 11));
+ } else {
+ w = OMAP_MMC_READ(host, CON);
+ OMAP_MMC_WRITE(host, CON, w & ~(1 << 11));
+ }
}
}
static int mmc_omap_calc_divisor(struct mmc_host *mmc, struct mmc_ios *ios)
{
- struct mmc_omap_host *host = mmc_priv(mmc);
+ struct mmc_omap_slot *slot = mmc_priv(mmc);
+ struct mmc_omap_host *host = slot->host;
int func_clk_rate = clk_get_rate(host->fclk);
int dsor;
if (dsor > 250)
dsor = 250;
- dsor++;
+
+ slot->fclk_freq = func_clk_rate / dsor;
if (ios->bus_width == MMC_BUS_WIDTH_4)
dsor |= 1 << 15;
static void mmc_omap_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
{
- struct mmc_omap_host *host = mmc_priv(mmc);
- int dsor;
- int i;
+ struct mmc_omap_slot *slot = mmc_priv(mmc);
+ struct mmc_omap_host *host = slot->host;
+ int i, dsor;
+ int clk_enabled;
+
+ mmc_omap_select_slot(slot, 0);
dsor = mmc_omap_calc_divisor(mmc, ios);
- host->bus_mode = ios->bus_mode;
- host->hw_bus_mode = host->bus_mode;
+ if (ios->vdd != slot->vdd)
+ slot->vdd = ios->vdd;
+
+ clk_enabled = 0;
switch (ios->power_mode) {
case MMC_POWER_OFF:
- mmc_omap_power(host, 0);
+ mmc_omap_set_power(slot, 0, ios->vdd);
break;
case MMC_POWER_UP:
/* Cannot touch dsor yet, just power up MMC */
- mmc_omap_power(host, 1);
- return;
+ mmc_omap_set_power(slot, 1, ios->vdd);
+ goto exit;
case MMC_POWER_ON:
+ mmc_omap_fclk_enable(host, 1);
+ clk_enabled = 1;
dsor |= 1 << 11;
break;
}
- clk_enable(host->fclk);
+ if (slot->bus_mode != ios->bus_mode) {
+ if (slot->pdata->set_bus_mode != NULL)
+ slot->pdata->set_bus_mode(mmc_dev(mmc), slot->id,
+ ios->bus_mode);
+ slot->bus_mode = ios->bus_mode;
+ }
/* On insanely high arm_per frequencies something sometimes
* goes somehow out of sync, and the POW bit is not being set,
* Writing to the CON register twice seems to do the trick. */
for (i = 0; i < 2; i++)
OMAP_MMC_WRITE(host, CON, dsor);
+ slot->saved_con = dsor;
if (ios->power_mode == MMC_POWER_ON) {
+ /* worst case at 400kHz, 80 cycles makes 200 microsecs */
+ int usecs = 250;
+
/* Send clock cycles, poll completion */
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);
+ while (usecs > 0 && (OMAP_MMC_READ(host, STAT) & 1) == 0) {
+ udelay(1);
+ usecs--;
+ }
OMAP_MMC_WRITE(host, STAT, 1);
}
- clk_disable(host->fclk);
+
+exit:
+ mmc_omap_release_slot(slot, clk_enabled);
}
static int mmc_omap_get_ro(struct mmc_host *mmc)
{
- struct mmc_omap_host *host = mmc_priv(mmc);
+ struct mmc_omap_slot *slot = mmc_priv(mmc);
- return host->wp_pin && omap_get_gpio_datain(host->wp_pin);
+ if (slot->pdata->get_ro != NULL)
+ return slot->pdata->get_ro(mmc_dev(mmc), slot->id);
+ return 0;
}
static const struct mmc_host_ops mmc_omap_ops = {
.get_ro = mmc_omap_get_ro,
};
-static int __init mmc_omap_probe(struct platform_device *pdev)
+static int __init mmc_omap_new_slot(struct mmc_omap_host *host, int id)
{
- struct omap_mmc_conf *minfo = pdev->dev.platform_data;
+ struct mmc_omap_slot *slot = NULL;
struct mmc_host *mmc;
+ int r;
+
+ mmc = mmc_alloc_host(sizeof(struct mmc_omap_slot), host->dev);
+ if (mmc == NULL)
+ return -ENOMEM;
+
+ slot = mmc_priv(mmc);
+ slot->host = host;
+ slot->mmc = mmc;
+ slot->id = id;
+ slot->pdata = &host->pdata->slots[id];
+
+ host->slots[id] = slot;
+
+ mmc->caps = MMC_CAP_MULTIWRITE | MMC_CAP_MMC_HIGHSPEED |
+ MMC_CAP_SD_HIGHSPEED;
+ if (host->pdata->conf.wire4)
+ mmc->caps |= MMC_CAP_4_BIT_DATA;
+
+ mmc->ops = &mmc_omap_ops;
+ mmc->f_min = 400000;
+
+ if (cpu_class_is_omap2())
+ mmc->f_max = 48000000;
+ else
+ mmc->f_max = 24000000;
+ if (host->pdata->max_freq)
+ mmc->f_max = min(host->pdata->max_freq, mmc->f_max);
+ mmc->ocr_avail = slot->pdata->ocr_mask;
+
+ /* Use scatterlist DMA to reduce per-transfer costs.
+ * NOTE max_seg_size assumption that small blocks aren't
+ * normally used (except e.g. for reading SD registers).
+ */
+ mmc->max_phys_segs = 32;
+ mmc->max_hw_segs = 32;
+ mmc->max_blk_size = 2048; /* BLEN is 11 bits (+1) */
+ mmc->max_blk_count = 2048; /* NBLK is 11 bits (+1) */
+ mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
+ mmc->max_seg_size = mmc->max_req_size;
+
+ r = mmc_add_host(mmc);
+ if (r < 0)
+ return r;
+
+ if (slot->pdata->name != NULL) {
+ r = device_create_file(&mmc->class_dev,
+ &dev_attr_slot_name);
+ if (r < 0)
+ goto err_remove_host;
+ }
+
+ if (slot->pdata->get_cover_state != NULL) {
+ r = device_create_file(&mmc->class_dev,
+ &dev_attr_cover_switch);
+ if (r < 0)
+ goto err_remove_slot_name;
+
+ setup_timer(&slot->cover_timer, mmc_omap_cover_timer,
+ (unsigned long)slot);
+ tasklet_init(&slot->cover_tasklet, mmc_omap_cover_handler,
+ (unsigned long)slot);
+ tasklet_schedule(&slot->cover_tasklet);
+ }
+
+ if (slot->pdata->get_ro != NULL) {
+ r = device_create_file(&mmc->class_dev,
+ &dev_attr_ro);
+ if (r < 0)
+ goto err_remove_cover_attr;
+ }
+
+ return 0;
+
+err_remove_cover_attr:
+ if (slot->pdata->get_cover_state != NULL)
+ device_remove_file(&mmc->class_dev, &dev_attr_cover_switch);
+err_remove_slot_name:
+ if (slot->pdata->name != NULL)
+ device_remove_file(&mmc->class_dev, &dev_attr_ro);
+err_remove_host:
+ mmc_remove_host(mmc);
+ return r;
+}
+
+static void mmc_omap_remove_slot(struct mmc_omap_slot *slot)
+{
+ struct mmc_host *mmc = slot->mmc;
+
+ if (slot->pdata->name != NULL)
+ device_remove_file(&mmc->class_dev, &dev_attr_slot_name);
+ if (slot->pdata->get_cover_state != NULL)
+ device_remove_file(&mmc->class_dev, &dev_attr_cover_switch);
+ if (slot->pdata->get_ro != NULL)
+ device_remove_file(&mmc->class_dev, &dev_attr_ro);
+
+ tasklet_kill(&slot->cover_tasklet);
+ del_timer_sync(&slot->cover_timer);
+ flush_scheduled_work();
+
+ mmc_remove_host(mmc);
+ mmc_free_host(mmc);
+}
+
+static int __init mmc_omap_probe(struct platform_device *pdev)
+{
+ struct omap_mmc_platform_data *pdata = pdev->dev.platform_data;
struct mmc_omap_host *host = NULL;
struct resource *res;
- int ret = 0;
+ int i, ret = 0;
int irq;
- if (minfo == NULL) {
+ if (pdata == NULL) {
dev_err(&pdev->dev, "platform data missing\n");
return -ENXIO;
}
+ if (pdata->nr_slots == 0) {
+ dev_err(&pdev->dev, "no slots\n");
+ return -ENXIO;
+ }
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
return -ENXIO;
res = request_mem_region(res->start, res->end - res->start + 1,
- pdev->name);
+ pdev->name);
if (res == NULL)
return -EBUSY;
- mmc = mmc_alloc_host(sizeof(struct mmc_omap_host), &pdev->dev);
- if (mmc == NULL) {
+ host = kzalloc(sizeof(struct mmc_omap_host), GFP_KERNEL);
+ if (host == NULL) {
ret = -ENOMEM;
goto err_free_mem_region;
}
- host = mmc_priv(mmc);
- host->mmc = mmc;
+ INIT_WORK(&host->slot_release_work, mmc_omap_slot_release_work);
+ INIT_WORK(&host->send_stop_work, mmc_omap_send_stop_work);
+
+ INIT_WORK(&host->cmd_abort_work, mmc_omap_abort_command);
+ setup_timer(&host->cmd_abort_timer, mmc_omap_cmd_timer,
+ (unsigned long) host);
+
+ spin_lock_init(&host->clk_lock);
+ setup_timer(&host->clk_timer, mmc_omap_clk_timer, (unsigned long) host);
spin_lock_init(&host->dma_lock);
- init_timer(&host->dma_timer);
- host->dma_timer.function = mmc_omap_dma_timer;
- host->dma_timer.data = (unsigned long) host;
+ setup_timer(&host->dma_timer, mmc_omap_dma_timer, (unsigned long) host);
+ spin_lock_init(&host->slot_lock);
+ init_waitqueue_head(&host->slot_wq);
+
+ host->pdata = pdata;
+ host->dev = &pdev->dev;
+ platform_set_drvdata(pdev, host);
host->id = pdev->id;
host->mem_res = res;
host->irq = irq;
+ host->use_dma = 1;
+ host->dma_ch = -1;
+
+ host->irq = irq;
+ host->phys_base = host->mem_res->start;
+ host->virt_base = (void __iomem *) IO_ADDRESS(host->phys_base);
+
if (cpu_is_omap24xx()) {
host->iclk = clk_get(&pdev->dev, "mmc_ick");
if (IS_ERR(host->iclk))
goto err_free_iclk;
}
- /* REVISIT:
- * Also, use minfo->cover to decide how to manage
- * the card detect sensing.
- */
- host->power_pin = minfo->power_pin;
- host->switch_pin = minfo->switch_pin;
- host->wp_pin = minfo->wp_pin;
- host->use_dma = 1;
- host->dma_ch = -1;
-
- 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_MULTIWRITE | MMC_CAP_BYTEBLOCK;
-
- if (minfo->wire4)
- mmc->caps |= MMC_CAP_4_BIT_DATA;
-
- /* Use scatterlist DMA to reduce per-transfer costs.
- * NOTE max_seg_size assumption that small blocks aren't
- * normally used (except e.g. for reading SD registers).
- */
- mmc->max_phys_segs = 32;
- mmc->max_hw_segs = 32;
- mmc->max_blk_size = 2048; /* BLEN is 11 bits (+1) */
- mmc->max_blk_count = 2048; /* NBLK is 11 bits (+1) */
- mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
- mmc->max_seg_size = mmc->max_req_size;
-
- if (host->power_pin >= 0) {
- 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 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 err_free_power_gpio;
+ goto err_free_fclk;
- host->dev = &pdev->dev;
- platform_set_drvdata(pdev, host);
+ if (pdata->init != NULL) {
+ ret = pdata->init(&pdev->dev);
+ if (ret < 0)
+ goto err_free_irq;
+ }
- if (host->switch_pin >= 0) {
- INIT_WORK(&host->switch_work, mmc_omap_switch_handler);
- init_timer(&host->switch_timer);
- host->switch_timer.function = mmc_omap_switch_timer;
- host->switch_timer.data = (unsigned long) host;
- if (omap_request_gpio(host->switch_pin) != 0) {
- dev_warn(mmc_dev(host->mmc), "Unable to get GPIO pin for MMC cover switch\n");
- host->switch_pin = -1;
- goto no_switch;
- }
+ host->nr_slots = pdata->nr_slots;
+ for (i = 0; i < pdata->nr_slots; i++) {
+ ret = mmc_omap_new_slot(host, i);
+ if (ret < 0) {
+ while (--i >= 0)
+ mmc_omap_remove_slot(host->slots[i]);
- omap_set_gpio_direction(host->switch_pin, 1);
- ret = request_irq(OMAP_GPIO_IRQ(host->switch_pin),
- mmc_omap_switch_irq, IRQF_TRIGGER_RISING, DRIVER_NAME, host);
- if (ret) {
- dev_warn(mmc_dev(host->mmc), "Unable to get IRQ for MMC cover switch\n");
- omap_free_gpio(host->switch_pin);
- host->switch_pin = -1;
- goto no_switch;
- }
- ret = device_create_file(&pdev->dev, &dev_attr_cover_switch);
- if (ret == 0) {
- ret = device_create_file(&pdev->dev, &dev_attr_enable_poll);
- if (ret != 0)
- device_remove_file(&pdev->dev, &dev_attr_cover_switch);
+ goto err_plat_cleanup;
}
- if (ret) {
- dev_warn(mmc_dev(host->mmc), "Unable to create sysfs attributes\n");
- free_irq(OMAP_GPIO_IRQ(host->switch_pin), host);
- omap_free_gpio(host->switch_pin);
- host->switch_pin = -1;
- goto no_switch;
- }
- if (mmc_omap_enable_poll && mmc_omap_cover_is_open(host))
- schedule_work(&host->switch_work);
}
- mmc_add_host(mmc);
-
return 0;
-no_switch:
- /* FIXME: Free other resources too. */
- if (host) {
- 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);
- }
-err_free_power_gpio:
- if (host->power_pin >= 0)
- omap_free_gpio(host->power_pin);
+err_plat_cleanup:
+ if (pdata->cleanup)
+ pdata->cleanup(&pdev->dev);
+err_free_irq:
+ free_irq(host->irq, host);
err_free_fclk:
clk_put(host->fclk);
err_free_iclk:
clk_put(host->iclk);
}
err_free_mmc_host:
- mmc_free_host(host->mmc);
+ kfree(host);
err_free_mem_region:
release_mem_region(res->start, res->end - res->start + 1);
return ret;
static int mmc_omap_remove(struct platform_device *pdev)
{
struct mmc_omap_host *host = platform_get_drvdata(pdev);
+ int i;
platform_set_drvdata(pdev, NULL);
BUG_ON(host == NULL);
- mmc_remove_host(host->mmc);
- free_irq(host->irq, host);
+ for (i = 0; i < host->nr_slots; i++)
+ mmc_omap_remove_slot(host->slots[i]);
+
+ if (host->pdata->cleanup)
+ host->pdata->cleanup(&pdev->dev);
- 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))
release_mem_region(pdev->resource[0].start,
pdev->resource[0].end - pdev->resource[0].start + 1);
- mmc_free_host(host->mmc);
+ kfree(host);
return 0;
}
#ifdef CONFIG_PM
static int mmc_omap_suspend(struct platform_device *pdev, pm_message_t mesg)
{
- int ret = 0;
+ int i, ret = 0;
struct mmc_omap_host *host = platform_get_drvdata(pdev);
- if (host && host->suspended)
+ if (host == NULL || host->suspended)
return 0;
- if (host) {
- ret = mmc_suspend_host(host->mmc, mesg);
- if (ret == 0)
- host->suspended = 1;
+ for (i = 0; i < host->nr_slots; i++) {
+ struct mmc_omap_slot *slot;
+
+ slot = host->slots[i];
+ ret = mmc_suspend_host(slot->mmc, mesg);
+ if (ret < 0) {
+ while (--i >= 0) {
+ slot = host->slots[i];
+ mmc_resume_host(slot->mmc);
+ }
+ return ret;
+ }
}
- return ret;
+ host->suspended = 1;
+ return 0;
}
static int mmc_omap_resume(struct platform_device *pdev)
{
- int ret = 0;
+ int i, ret = 0;
struct mmc_omap_host *host = platform_get_drvdata(pdev);
- if (host && !host->suspended)
+ if (host == NULL || !host->suspended)
return 0;
- if (host) {
- ret = mmc_resume_host(host->mmc);
- if (ret == 0)
- host->suspended = 0;
- }
+ for (i = 0; i < host->nr_slots; i++) {
+ struct mmc_omap_slot *slot;
+ slot = host->slots[i];
+ ret = mmc_resume_host(slot->mmc);
+ if (ret < 0)
+ return ret;
- return ret;
+ host->suspended = 0;
+ }
+ return 0;
}
#else
#define mmc_omap_suspend NULL
MODULE_DESCRIPTION("OMAP Multimedia Card driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRIVER_NAME);
-MODULE_AUTHOR("Juha Yrjölä");
+MODULE_AUTHOR("Juha Yrj�l�");
projects / linux-2.6-omap-h63xx.git / blobdiff