diff options
Diffstat (limited to 'drivers/mmc')
-rw-r--r-- | drivers/mmc/mmc.c | 15 | ||||
-rw-r--r-- | drivers/mmc/mmc_block.c | 18 | ||||
-rw-r--r-- | drivers/mmc/mmc_sysfs.c | 4 |
3 files changed, 25 insertions, 12 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index d336a1d65dc..eb41391e06e 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -679,7 +679,15 @@ static void mmc_idle_cards(struct mmc_host *host) } /* - * Apply power to the MMC stack. + * Apply power to the MMC stack. This is a two-stage process. + * First, we enable power to the card without the clock running. + * We then wait a bit for the power to stabilise. Finally, + * enable the bus drivers and clock to the card. + * + * We must _NOT_ enable the clock prior to power stablising. + * + * If a host does all the power sequencing itself, ignore the + * initial MMC_POWER_UP stage. */ static void mmc_power_up(struct mmc_host *host) { @@ -932,8 +940,9 @@ static void mmc_read_scrs(struct mmc_host *host) sg_init_one(&sg, (u8*)card->raw_scr, 8); - err = mmc_wait_for_req(host, &mrq); - if (err != MMC_ERR_NONE) { + mmc_wait_for_req(host, &mrq); + + if (cmd.error != MMC_ERR_NONE || data.error != MMC_ERR_NONE) { mmc_card_set_dead(card); continue; } diff --git a/drivers/mmc/mmc_block.c b/drivers/mmc/mmc_block.c index d91fcf7c317..8e380c14bf6 100644 --- a/drivers/mmc/mmc_block.c +++ b/drivers/mmc/mmc_block.c @@ -263,7 +263,7 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req) */ add_disk_randomness(req->rq_disk); blkdev_dequeue_request(req); - end_that_request_last(req); + end_that_request_last(req, 1); } spin_unlock_irq(&md->lock); } while (ret); @@ -289,7 +289,7 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req) add_disk_randomness(req->rq_disk); blkdev_dequeue_request(req); - end_that_request_last(req); + end_that_request_last(req, 0); spin_unlock_irq(&md->lock); return 0; @@ -359,7 +359,12 @@ static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card) md->block_bits = card->csd.read_blkbits; blk_queue_hardsect_size(md->queue.queue, 1 << md->block_bits); - set_capacity(md->disk, card->csd.capacity); + + /* + * The CSD capacity field is in units of read_blkbits. + * set_capacity takes units of 512 bytes. + */ + set_capacity(md->disk, card->csd.capacity << (card->csd.read_blkbits - 9)); } out: return md; @@ -373,7 +378,7 @@ mmc_blk_set_blksize(struct mmc_blk_data *md, struct mmc_card *card) mmc_card_claim_host(card); cmd.opcode = MMC_SET_BLOCKLEN; - cmd.arg = 1 << card->csd.read_blkbits; + cmd.arg = 1 << md->block_bits; cmd.flags = MMC_RSP_R1; err = mmc_wait_for_cmd(card->host, &cmd, 5); mmc_card_release_host(card); @@ -412,10 +417,9 @@ static int mmc_blk_probe(struct mmc_card *card) if (err) goto out; - printk(KERN_INFO "%s: %s %s %dKiB %s\n", + printk(KERN_INFO "%s: %s %s %luKiB %s\n", md->disk->disk_name, mmc_card_id(card), mmc_card_name(card), - (card->csd.capacity << card->csd.read_blkbits) / 1024, - mmc_blk_readonly(card)?"(ro)":""); + get_capacity(md->disk) >> 1, mmc_blk_readonly(card)?"(ro)":""); mmc_set_drvdata(card, md); add_disk(md->disk); diff --git a/drivers/mmc/mmc_sysfs.c b/drivers/mmc/mmc_sysfs.c index 3f4a66ca955..ec701667abf 100644 --- a/drivers/mmc/mmc_sysfs.c +++ b/drivers/mmc/mmc_sysfs.c @@ -80,7 +80,7 @@ static int mmc_bus_match(struct device *dev, struct device_driver *drv) } static int -mmc_bus_hotplug(struct device *dev, char **envp, int num_envp, char *buf, +mmc_bus_uevent(struct device *dev, char **envp, int num_envp, char *buf, int buf_size) { struct mmc_card *card = dev_to_mmc_card(dev); @@ -140,7 +140,7 @@ static struct bus_type mmc_bus_type = { .name = "mmc", .dev_attrs = mmc_dev_attrs, .match = mmc_bus_match, - .hotplug = mmc_bus_hotplug, + .uevent = mmc_bus_uevent, .suspend = mmc_bus_suspend, .resume = mmc_bus_resume, }; |