rk29_mux_api_set(GPIO1D3_SDMMC0DATA1_NAME, GPIO1H_SDMMC0_DATA1);
rk29_mux_api_set(GPIO1D4_SDMMC0DATA2_NAME, GPIO1H_SDMMC0_DATA2);
rk29_mux_api_set(GPIO1D5_SDMMC0DATA3_NAME, GPIO1H_SDMMC0_DATA3);
+
+#ifdef CONFIG_SDMMC_RK29_OLD
rk29_mux_api_set(GPIO2A2_SDMMC0DETECTN_NAME, GPIO2L_GPIO2A2);
+#else
+ rk29_mux_api_set(GPIO2A2_SDMMC0DETECTN_NAME, GPIO2L_SDMMC0_DETECT_N);//Modifyed by xbw.
+#endif
+
rk29_mux_api_set(GPIO5D5_SDMMC0PWREN_NAME, GPIO5H_GPIO5D5); ///GPIO5H_SDMMC0_PWR_EN); ///GPIO5H_GPIO5D5);
gpio_request(RK29_PIN5_PD5,"sdmmc");
#if 0
MODULE_ALIAS("mmc:block");
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+static DEFINE_MUTEX(block_mutex); //added by xbw at 2011-04-21
+#endif
+
/*
* max 8 partitions per card
*/
{
struct mmc_blk_data *md = mmc_blk_get(bdev->bd_disk);
int ret = -ENXIO;
+
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ mutex_lock(&block_mutex); //added by xbw at 2011-04-21
+#endif
if (md) {
if (md->usage == 2)
ret = -EROFS;
}
}
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ mutex_unlock(&block_mutex);
+#endif
return ret;
}
static int mmc_blk_release(struct gendisk *disk, fmode_t mode)
{
struct mmc_blk_data *md = disk->private_data;
+
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ mutex_lock(&block_mutex); //added by xbw at 2011-04-21
+#endif
mmc_blk_put(md);
+
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ mutex_unlock(&block_mutex);
+#endif
+
return 0;
}
return result;
}
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD) //Deleted by xbw@2011-03-21
+//static u32 get_card_status(struct mmc_card *card, struct request *req)
+//{
+// return 0;
+//}
+
+#else
static u32 get_card_status(struct mmc_card *card, struct request *req)
{
struct mmc_command cmd;
req->rq_disk->disk_name, err);
return cmd.resp[0];
}
+#endif
static int
mmc_blk_set_blksize(struct mmc_blk_data *md, struct mmc_card *card)
mmc_claim_host(card->host);
do {
- struct mmc_command cmd;
+ #if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ //struct mmc_command cmd;//Deleted by xbw@2011-03-21
+ #else
+ struct mmc_command cmd;
+ #endif
+
u32 readcmd, writecmd, status = 0;
memset(&brq, 0, sizeof(struct mmc_blk_request));
brq.mrq.cmd = &brq.cmd;
brq.mrq.data = &brq.data;
-
+
+ #if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ brq.cmd.retries = 2; //suppot retry read-write; added by xbw@2011-03-21
+ #endif
+
brq.cmd.arg = blk_rq_pos(req);
if (!mmc_card_blockaddr(card))
brq.cmd.arg <<= 9;
mmc_queue_bounce_post(mq);
+ #if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ //not turn CMD18 to CMD17. deleted by xbw at 2011-04-21
+
+ #else
+
/*
* Check for errors here, but don't jump to cmd_err
* until later as we need to wait for the card to leave
status = get_card_status(card, req);
} else if (disable_multi == 1) {
disable_multi = 0;
- }
+ }
+ #endif
if (brq.cmd.error) {
printk(KERN_DEBUG "%s: error %d sending read/write "
brq.stop.resp[0], status);
}
+ #if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ //Deleted by xbw@2011-03-21
+
+ #else
if (!mmc_host_is_spi(card->host) && rq_data_dir(req) != READ) {
do {
int err;
goto cmd_err;
#endif
}
+#endif
- if (brq.cmd.error || brq.stop.error || brq.data.error) {
+ if (brq.cmd.error || brq.stop.error || brq.data.error) {
if (rq_data_dir(req) == READ) {
/*
* After an error, we redo I/O one sector at a
sprintf(md->disk->disk_name, "mmcblk%d", devidx);
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ printk("%s..%d **** devidx=%d, dev_use[0]=%lu, disk_name=%s *** ==xbw[%s]==\n",\
+ __FUNCTION__,__LINE__, devidx, dev_use[0], md->disk->disk_name,mmc_hostname(card->host));
+#endif
+
blk_queue_logical_block_size(md->queue.queue, 512);
if (!mmc_card_sd(card) && mmc_card_blockaddr(card)) {
#endif
if (mmc_card_present(card)) {
+#if defined(CONFIG_SDMMC_RK29) && defined(CONFIG_SDMMC_RK29_OLD)
mmc_card_clr_present(card);
+#endif
if (mmc_host_is_spi(card->host)) {
printk(KERN_INFO "%s: SPI card removed\n",
mmc_hostname(card->host));
mmc_start_request(host, mrq);
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ wait_for_completion_timeout(&complete,HZ*3); //for cmd dead. Modifyed by xbw at 2011-06-02
+#else
wait_for_completion(&complete);
+#endif
}
EXPORT_SYMBOL(mmc_wait_for_req);
EXPORT_SYMBOL(mmc_detect_change);
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+void mmc_rescan(struct work_struct *work)
+{
+ struct mmc_host *host =
+ container_of(work, struct mmc_host, detect.work);
+ u32 ocr;
+ int err;
+ int extend_wakelock = 0;
+
+
+ mmc_bus_get(host);
+
+ /* if there is a card registered, check whether it is still present */
+ if ((host->bus_ops != NULL) && host->bus_ops->detect && !host->bus_dead)
+ host->bus_ops->detect(host);
+
+ /* If the card was removed the bus will be marked
+ * as dead - extend the wakelock so userspace
+ * can respond */
+ if (host->bus_dead)
+ extend_wakelock = 1;
+
+ mmc_bus_put(host);
+
+
+ mmc_bus_get(host);
+
+ /* if there still is a card present, stop here */
+ if (host->bus_ops != NULL) {
+ mmc_bus_put(host);
+ goto out;
+ }
+
+ /* detect a newly inserted card */
+
+ /*
+ * Only we can add a new handler, so it's safe to
+ * release the lock here.
+ */
+ mmc_bus_put(host);
+ printk("\n%s...%d.. ===== mmc_rescan Begin....======xbw[%s]=====\n",__FILE__, __LINE__, mmc_hostname(host));
+
+ if (host->ops->get_cd && host->ops->get_cd(host) == 0)
+ {
+ printk("\n=================\n%s..%d.. ====find no SDMMC host.====xbw[%s]=====\n", \
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+
+ goto out;
+ }
+
+ mmc_claim_host(host);
+
+ mmc_power_up(host);
+
+ mmc_go_idle(host);
+
+ /*
+ In oder to improve the initialization process in rockchip IC, I modify the following code about the the initialization process of SDIO-SD-MMC.
+ So I deleted the CMD8 and add a conditional to distinguish between the two card type,i.e.SDMMC process and SDIO process.
+ For detail,please refer to "RK29XX Technical Reference Manual" and "SD-MMC-SDIO Specifications".
+ Noted by xbw@2011-04-09
+ */
+
+ //mmc_send_if_cond(host, host->ocr_avail); //deleted by xbw@2011-04-09
+
+ if( strncmp( mmc_hostname(host) ,"mmc0" , strlen("mmc0")) ){
+ /*
+ * First we search for SDIO...
+ */
+ err = mmc_send_io_op_cond(host, 0, &ocr);
+ if (!err) {
+ printk("\n%s..%d.. ===== Begin to identify card as SDIO-card===xbw[%s]===\n",__FUNCTION__, __LINE__, mmc_hostname(host));
+
+ if (mmc_attach_sdio(host, ocr))
+ {
+ printk("\n=====\n %s..%d.. ===== Initialize SDIO-card unsuccessfully!!! ===xbw[%s]===\n=====\n",\
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+
+ mmc_power_off(host);
+ }
+ else
+ {
+ printk("%s..%d.. ===== Initialize SDIO successfully. ===xbw[%s]===\n",__FUNCTION__, __LINE__, mmc_hostname(host));
+ }
+ extend_wakelock = 1;
+ goto out;
+ }
+ }
+
+
+ /*
+ * ...then normal SD...
+ */
+ err = mmc_send_app_op_cond(host, 0, &ocr);
+ if (!err) {
+ printk("\n%s..%d.. ===== Begin to identify card as SD-card ===xbw[%s]===\n",__FUNCTION__, __LINE__, mmc_hostname(host));
+
+ if (mmc_attach_sd(host, ocr))
+ {
+ printk("\n=====\n%s..%d.. ===== Initialize SD-card unsuccessfully!!! ===xbw[%s]===\n====\n",\
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+
+ mmc_power_off(host);
+ }
+ else
+ {
+ printk("%s..%d.. ===== Initialize SD-card successfully. ===xbw[%s]===\n",__FUNCTION__, __LINE__, mmc_hostname(host));
+ }
+ extend_wakelock = 1;
+ goto out;
+ }
+
+ /*
+ * ...and finally MMC.
+ */
+ err = mmc_send_op_cond(host, 0, &ocr);
+ if (!err) {
+ printk("\n%s..%d.. ===== Begin to identify card as MMC-card ===xbw[%s]===\n", __FUNCTION__, __LINE__, mmc_hostname(host));
+
+ if (mmc_attach_mmc(host, ocr))
+ {
+ printk("\n =====\n%s..%d.. ===== Initialize MMC-card unsuccessfully!!! ===xbw[%s]===\n======\n",\
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+
+ mmc_power_off(host);
+ }
+ else
+ {
+ printk("%s...%d.. ===== Initialize MMC-card successfully. ===xbw[%s]===\n",__FUNCTION__, __LINE__, mmc_hostname(host));
+ }
+ extend_wakelock = 1;
+ goto out;
+ }
+
+ mmc_release_host(host);
+ mmc_power_off(host);
+
+out:
+
+ if (extend_wakelock)
+ wake_lock_timeout(&mmc_delayed_work_wake_lock, HZ / 2);
+ else
+ wake_unlock(&mmc_delayed_work_wake_lock);
+
+ if (host->caps & MMC_CAP_NEEDS_POLL)
+ mmc_schedule_delayed_work(&host->detect, HZ);
+}
+#else
void mmc_rescan(struct work_struct *work)
{
struct mmc_host *host =
u32 ocr;
int err;
int extend_wakelock = 0;
+
+#if defined(CONFIG_SDMMC_RK29) && defined(CONFIG_SDMMC_RK29_OLD)
unsigned long flags;
spin_lock_irqsave(&host->lock, flags);
}
spin_unlock_irqrestore(&host->lock, flags);
+#endif
mmc_bus_get(host);
if (host->caps & MMC_CAP_NEEDS_POLL)
mmc_schedule_delayed_work(&host->detect, HZ);
}
+#endif
void mmc_start_host(struct mmc_host *host)
{
if (host->bus_ops && !host->bus_dead) {
if (host->bus_ops->suspend)
err = host->bus_ops->suspend(host);
+
+#if defined(CONFIG_SDMMC_RK29) && defined(CONFIG_SDMMC_RK29_OLD)
+ //deleted all detail code.
+#else
+ if (err == -ENOSYS || !host->bus_ops->resume) {
+ /*
+ * We simply "remove" the card in this case.
+ * It will be redetected on resume.
+ */
+ if (host->bus_ops->remove)
+ host->bus_ops->remove(host);
+ mmc_claim_host(host);
+ mmc_detach_bus(host);
+ mmc_release_host(host);
+ err = 0;
+ }
+#endif
}
mmc_bus_put(host);
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
BUG_ON(!host->bus_ops->resume);
+
+#if defined(CONFIG_SDMMC_RK29) && defined(CONFIG_SDMMC_RK29_OLD)
err = host->bus_ops->resume(host);
if (err) {
printk(KERN_WARNING "%s: error %d during resume "
mmc_hostname(host), err);
err = 0;
}
+
+#elif defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ //panic if the card is being removed during the resume, deleted by xbw at 2011-06-20
+ host->bus_ops->resume(host);
+
+#else
+ err = host->bus_ops->resume(host);
+ if (err) {
+ printk(KERN_WARNING "%s: error %d during resume "
+ "(card was removed?)\n",
+ mmc_hostname(host), err);
+ if (host->bus_ops->remove)
+ host->bus_ops->remove(host);
+ mmc_claim_host(host);
+ mmc_detach_bus(host);
+ mmc_release_host(host);
+ /* no need to bother upper layers */
+ err = 0;
+ }
+#endif
}
mmc_bus_put(host);
+#if defined(CONFIG_SDMMC_RK29) && defined(CONFIG_SDMMC_RK29_OLD)
+ //delete the detect_change.
+#else
+ /*
+ * We add a slight delay here so that resume can progress
+ * in parallel.
+ */
+ mmc_detect_change(host, 1);
+#endif
return err;
}
EXPORT_SYMBOL(mmc_resume_host);
+///old driver add the function reforming to kernel2.6.38
+#if defined(CONFIG_SDMMC_RK29) && defined(CONFIG_SDMMC_RK29_OLD)
/* Do the card removal on suspend if card is assumed removeable
* Do that in pm notifier while userspace isn't yet frozen, so we will be able
to sync the card.
return 0;
}
+#endif// endif---defined(CONFIG_SDMMC_RK29) && defined(CONFIG_SDMMC_RK29_OLD)
+
#endif
#ifdef CONFIG_MMC_EMBEDDED_SDIO
#include <linux/idr.h>
#include <linux/pagemap.h>
#include <linux/leds.h>
+#if defined(CONFIG_SDMMC_RK29) && defined(CONFIG_SDMMC_RK29_OLD)
#include <linux/suspend.h>
-
+#endif
#include <linux/mmc/host.h>
#include "core.h"
init_waitqueue_head(&host->wq);
INIT_DELAYED_WORK(&host->detect, mmc_rescan);
INIT_DELAYED_WORK_DEFERRABLE(&host->disable, mmc_host_deeper_disable);
+#if defined(CONFIG_SDMMC_RK29) && defined(CONFIG_SDMMC_RK29_OLD) // old driver, add pm reform to kernel2.6.38
#ifdef CONFIG_PM
host->pm_notify.notifier_call = mmc_pm_notify;
+#endif
#endif
/*
#endif
mmc_start_host(host);
+
+#if defined(CONFIG_SDMMC_RK29) && defined(CONFIG_SDMMC_RK29_OLD) // old driver, add pm reform to kernel2.6.38
if (!(host->pm_flags & MMC_PM_IGNORE_PM_NOTIFY))
register_pm_notifier(&host->pm_notify);
+#endif
return 0;
}
*/
void mmc_remove_host(struct mmc_host *host)
{
+#if defined(CONFIG_SDMMC_RK29) && defined(CONFIG_SDMMC_RK29_OLD) // old driver, add pm reform to kernel2.6.38
if (!(host->pm_flags & MMC_PM_IGNORE_PM_NOTIFY))
unregister_pm_notifier(&host->pm_notify);
+ #endif
+
mmc_stop_host(host);
#ifdef CONFIG_DEBUG_FS
/* The extra bit indicates that we support high capacity */
err = mmc_send_op_cond(host, ocr | (1 << 30), NULL);
if (err)
+ {
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ printk("%s..%d.. ====*Identify the card as MMC , but OCR error, so fail to initialize.===xbw[%s]===\n",\
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+#endif
goto err;
+ }
/*
* For SPI, enable CRC as appropriate.
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) {
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ //in order to expand the compatibility of card. Added by xbw@2011-03-21
+ card->csd.max_dtr = (card->csd.max_dtr > MMC_FPP_FREQ) ? MMC_FPP_FREQ : (card->csd.max_dtr);
+#endif
max_dtr = card->csd.max_dtr;
}
int mmc_attach_mmc(struct mmc_host *host, u32 ocr)
{
int err;
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ int retry_times = 3;
+#endif
BUG_ON(!host);
WARN_ON(!host->claimed);
goto err;
mmc_release_host(host);
-
+
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+//modifyed by xbw at 2011--04-11
+Retry_add:
err = mmc_add_card(host->card);
if (err)
+ {
+ //retry add the card; Added by xbw
+ if((--retry_times >= 0))
+ {
+ printk("\n%s..%s..%d ****error in add partition, so retry. ===xbw[%s]===\n",__FUNCTION__,__FILE__,__LINE__, mmc_hostname(host));
+ /* sleep some time */
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ/2);
+
+ goto Retry_add;
+ }
+
goto remove_card;
+
+ }
+#else
+ err = mmc_add_card(host->card);
+ if (err)
+ goto remove_card;
+#endif
+
return 0;
err = mmc_send_app_op_cond(host, ocr, NULL);
if (err)
+ {
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ printk("%s..%d.. ====*Identify the card as SD , but OCR error, so fail to initialize.===xbw[%s]===\n", \
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+#endif
goto err;
+ }
/*
* Fetch CID from card.
printk(KERN_WARNING
"%s: read switch failed (attempt %d)\n",
mmc_hostname(host), retries);
+
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(0 == host->re_initialized_flags)
+ {
+ break; //Added by xbw at 2011-06-21
+ }
+#endif
}
}
#else
if (max_dtr > card->sw_caps.hs_max_dtr)
max_dtr = card->sw_caps.hs_max_dtr;
} else if (max_dtr > card->csd.max_dtr) {
+
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ //in order to expand the compatibility of card. Added by xbw@2011-03-21
+ card->csd.max_dtr = (card->csd.max_dtr > SD_FPP_FREQ) ? SD_FPP_FREQ : (card->csd.max_dtr);
+#endif
max_dtr = card->csd.max_dtr;
}
err = mmc_send_status(host->card, NULL);
if (err) {
retries--;
+
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(0 == host->re_initialized_flags)
+ {
+ retries = 0;
+ break; //Added by xbw at 2011-06-21
+ }
+#endif
+
udelay(5);
continue;
}
mmc_hostname(host), err, retries);
mdelay(5);
retries--;
+
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(0 == host->re_initialized_flags)
+ {
+ break; //Added by xbw at 2011-06-21
+ }
+#endif
continue;
}
break;
int mmc_attach_sd(struct mmc_host *host, u32 ocr)
{
int err;
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ int retry_times = 3;
+#endif
+
#ifdef CONFIG_MMC_PARANOID_SD_INIT
int retries;
#endif
err = mmc_sd_init_card(host, host->ocr, NULL);
if (err) {
retries--;
+
+ #if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(0 == host->re_initialized_flags)
+ {
+ retries = 0;
+ break; //Added by xbw at 2011-06-21
+ }
+ #endif
continue;
}
break;
mmc_release_host(host);
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+//modifyed by xbw at 2011--04-11
+Retry_add:
err = mmc_add_card(host->card);
+ if (err)
+ {
+ //retry add the card; Added by xbw
+ if((--retry_times >= 0))
+ {
+ printk("\n%s..%s..%d ****error in add partition, so retry. ===xbw[%s]===\n",__FUNCTION__,__FILE__,__LINE__, mmc_hostname(host));
+ /* sleep some time */
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(HZ/2);
+
+ goto Retry_add;
+ }
+
+ goto remove_card;
+
+ }
+#else
+ err = mmc_add_card(host->card);
if (err)
goto remove_card;
+#endif
return 0;
*/
err = mmc_send_io_op_cond(host, host->ocr, &ocr);
if (err)
+ {
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ printk("%s..%d.. ====*Identify the card as SDIO , but OCR error, so fail to initialize.===xbw[%s]===\n", \
+ __FUNCTION__, __LINE__, mmc_hostname(host));
+#endif
goto err;
+ }
/*
* For SPI, enable CRC as appropriate.
if (err)
goto remove;
+#if defined(CONFIG_SDMMC_RK29) && defined(CONFIG_SDMMC_RK29_OLD) //old driver add the code ,reform to kernel2.6.38
/*
* Update oldcard with the new RCA received from the SDIO
* device -- we're doing this so that it's updated in the
*/
if (oldcard)
oldcard->rca = card->rca;
+#endif
mmc_set_bus_mode(host, MMC_BUSMODE_PUSHPULL);
}
SDMMC0 used for sd/mmc card, and SDMMC1 used for sdio.
if SDMMC_RK29
comment "Now, there are two SDMMC controllers selected, SDMMC0 and SDMMC1."
+ config SDMMC_RK29_OLD
+ bool "Old driver (DEPRECATED)"
+ help
+ You will select old,origin driver for your project if you say Yes.
+ It is not good to select the driver.
+
config SDMMC0_RK29
tristate "RK29 SDMMC0 controller support(sdmmc)"
default y
depends on ARCH_RK29
help
This supports the use of the SDMMC0 controller on Rk29 processors.
- config EMMC_RK29
- tristate "RK29 EMMC controller support(sdmmc)"
- default y
- depends on SDMMC0_RK29
- help
- This supports the use of the EMMC controller on Rk29 processors.
+# config EMMC_RK29
+# tristate "RK29 EMMC controller support(sdmmc)"
+# default y
+# depends on SDMMC0_RK29
+# help
+# This supports the use of the EMMC controller on Rk29 processors.
config SDMMC1_RK29
tristate "RK29 SDMMC1 controller support(sdio)"
default y
EXTRA_CFLAGS += -DDEBUG
endif
+ifeq ($(CONFIG_SDMMC_RK29_OLD),y)
+obj-$(CONFIG_SDMMC_RK29) += rk29_sdmmc_old.o
+else
obj-$(CONFIG_SDMMC_RK29) += rk29_sdmmc.o
+endif
+
obj-$(CONFIG_SDMMC_RK2818) += rk2818-sdmmc.o
obj-$(CONFIG_MMC_ARMMMCI) += mmci.o
obj-$(CONFIG_MMC_PXA) += pxamci.o
int p, highest, res;
if (bdev->bd_part_count)
+ {
+ #if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(179 == MAJOR(bdev->bd_dev))
+ {
+ printk("%s..%d.. The sdcard partition have been using.So device busy! ====xbw===\n",__FUNCTION__, __LINE__);
+ }
+ #endif
+
return -EBUSY;
+ }
res = invalidate_partition(disk, 0);
if (res)
return res;
check_disk_size_change(disk, bdev);
bdev->bd_invalidated = 0;
if (!get_capacity(disk) || !(state = check_partition(disk, bdev)))
+ {
+ #if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(179 == MAJOR(bdev->bd_dev))
+ {
+ printk("%s..%d... ==== check partition fail. partitionAddr=%x ====xbw===\n",__FUNCTION__, __LINE__, state);
+ }
+ #endif
return 0;
+ }
if (IS_ERR(state)) /* I/O error reading the partition table */
return -EIO;
return 0;
}
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(179 == MAJOR(bdev->bd_dev))
+ {
+ printk("\n%s..%d... ==== Begin to parse sdcard-partition. ====xbw[mmc0]===\n",__FUNCTION__, __LINE__);
+ }
+#endif
+
/*
* Now that the 55aa signature is present, this is probably
* either the boot sector of a FAT filesystem or a DOS-type
p = (struct partition *) (data + 0x1be);
for (slot = 1; slot <= 4; slot++, p++) {
if (p->boot_ind != 0 && p->boot_ind != 0x80) {
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(179 == MAJOR(bdev->bd_dev))
+ {
+ printk("%s..%d... ==== The sdcard has not MBR. ====xbw[mmc0]===\n",__FUNCTION__, __LINE__);
+ }
+#endif
/*
* Even without a valid boot inidicator value
* its still possible this is valid FAT filesystem
&& fat_valid_media(fb->media)) {
printk("\n");
put_dev_sector(sect);
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(179 == MAJOR(bdev->bd_dev))
+ {
+ printk("%s..%d... ==== The DBR(slot=%d) is valid. ====xbw[mmc0]===\n",__FUNCTION__, __LINE__, slot);
+ }
+#endif
return 1;
} else {
put_dev_sector(sect);
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(179 == MAJOR(bdev->bd_dev))
+ {
+ printk("%s..%d... ==== The DBR is invalid. ====xbw[mmc0]===\n",__FUNCTION__, __LINE__);
+ }
+#endif
return 0;
}
}
* First find the primary and DOS-type extended partitions.
* On the second pass look inside *BSD, Unixware and Solaris partitions.
*/
-
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(179 == MAJOR(bdev->bd_dev))
+ {
+ printk("%s..%d... ==== The sdcard has MBR. ====xbw[mmc0]===\n", __FUNCTION__, __LINE__);
+ }
+#endif
state->next = 5;
for (slot = 1 ; slot <= 4 ; slot++, p++) {
sector_t start = start_sect(p)*sector_size;
sector_t size = nr_sects(p)*sector_size;
if (!size)
continue;
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(179 == MAJOR(bdev->bd_dev))
+ {
+ printk("%s..%d... ==== partition-%d, size=%luKB ====xbw[mmc0]===\n",\
+ __FUNCTION__, __LINE__, slot, size/2);
+ }
+#endif
if (is_extended_partition(p)) {
/*
* prevent someone doing mkfs or mkswap on an
*/
sector_t n = 2;
n = min(size, max(sector_size, n));
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(179 == MAJOR(bdev->bd_dev))
+ {
+ printk("%s...%d... ==== extend partition-%d....====xbw[mmc0]===\n",__FUNCTION__, __LINE__, slot);
+ }
+#endif
put_partition(state, slot, start, n);
printk(" <");
printk(" >");
continue;
}
+#if defined(CONFIG_SDMMC_RK29) && !defined(CONFIG_SDMMC_RK29_OLD)
+ if(179 == MAJOR(bdev->bd_dev))
+ {
+ printk("%s..%d... ==== main partition-%d....====xbw[mmc0]===\n",__FUNCTION__, __LINE__, slot);
+ }
+#endif
put_partition(state, slot, start, size);
if (SYS_IND(p) == LINUX_RAID_PARTITION)
state->parts[slot].flags = 1;
#define MMC_BUSRESUME_MANUAL_RESUME (1 << 0)
#define MMC_BUSRESUME_NEEDS_RESUME (1 << 1)
+ unsigned int re_initialized_flags; //in order to begin the rescan ; added by xbw@2011-04-07
+
unsigned int sdio_irqs;
struct task_struct *sdio_irq_thread;
atomic_t sdio_irq_thread_abort;
#define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits which are 1 in value */
#define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target to value */
+
+/*
+* some limit value of SDMMC about protocol ; Added by xbw at 2011-03-21
+*/
+#define FOD_FREQ (300000) // in the identify stage, unit: hz, max is 400Khz,
+ // the least frequency is FREQ_HCLK_MAX/8
+#define SD_FPP_FREQ (24000000) // normal sd freq, 25Mhz
+#define SDHC_FPP_FREQ (49000000) // SDHC in the highspeed. unit is hz, max is 50Mhz.
+#define MMC_FPP_FREQ (19000000) // MMC freq, unit is hz, max is 20MHz
+#define MMCHS_26_FPP_FREQ (24000000) // highspeed mode support 26M HS-MMC, unit is hz, max is 26Mhz,
+#define MMCHS_52_FPP_FREQ (49000000) // highspeed support 52M HS-MMC, unit is hz, max is 52Mhz,
+
+
#endif /* MMC_MMC_PROTOCOL_H */
projects / firefly-linux-kernel-4.4.55.git / commitdiff