diff options
Diffstat (limited to 'drivers/mmc/core')
| -rw-r--r-- | drivers/mmc/core/bus.c | 3 | ||||
| -rw-r--r-- | drivers/mmc/core/core.c | 32 | ||||
| -rw-r--r-- | drivers/mmc/core/debugfs.c | 16 | ||||
| -rw-r--r-- | drivers/mmc/core/mmc.c | 19 | ||||
| -rw-r--r-- | drivers/mmc/core/mmc_ops.c | 11 | ||||
| -rw-r--r-- | drivers/mmc/core/sdio_bus.c | 17 | ||||
| -rw-r--r-- | drivers/mmc/core/sdio_io.c | 10 | ||||
| -rw-r--r-- | drivers/mmc/core/sdio_ops.c | 32 | ||||
| -rw-r--r-- | drivers/mmc/core/slot-gpio.c | 8 |
9 files changed, 130 insertions, 18 deletions
diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 9b68933f27e7..420cb6753c1e 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -225,8 +225,7 @@ static void mmc_release_card(struct device *dev) sdio_free_common_cis(card); - if (card->info) - kfree(card->info); + kfree(card->info); kfree(card); } diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 06c42cfb7c34..aaed7687cf09 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -42,6 +42,9 @@ #include "sd_ops.h" #include "sdio_ops.h" +/* If the device is not responding */ +#define MMC_CORE_TIMEOUT_MS (10 * 60 * 1000) /* 10 minute timeout */ + /* * Background operations can take a long time, depending on the housekeeping * operations the card has to perform. @@ -1631,6 +1634,7 @@ static int mmc_do_erase(struct mmc_card *card, unsigned int from, { struct mmc_command cmd = {0}; unsigned int qty = 0; + unsigned long timeout; int err; /* @@ -1708,6 +1712,7 @@ static int mmc_do_erase(struct mmc_card *card, unsigned int from, if (mmc_host_is_spi(card->host)) goto out; + timeout = jiffies + msecs_to_jiffies(MMC_CORE_TIMEOUT_MS); do { memset(&cmd, 0, sizeof(struct mmc_command)); cmd.opcode = MMC_SEND_STATUS; @@ -1721,8 +1726,19 @@ static int mmc_do_erase(struct mmc_card *card, unsigned int from, err = -EIO; goto out; } + + /* Timeout if the device never becomes ready for data and + * never leaves the program state. + */ + if (time_after(jiffies, timeout)) { + pr_err("%s: Card stuck in programming state! %s\n", + mmc_hostname(card->host), __func__); + err = -EIO; + goto out; + } + } while (!(cmd.resp[0] & R1_READY_FOR_DATA) || - R1_CURRENT_STATE(cmd.resp[0]) == R1_STATE_PRG); + (R1_CURRENT_STATE(cmd.resp[0]) == R1_STATE_PRG)); out: return err; } @@ -1942,6 +1958,20 @@ int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen) } EXPORT_SYMBOL(mmc_set_blocklen); +int mmc_set_blockcount(struct mmc_card *card, unsigned int blockcount, + bool is_rel_write) +{ + struct mmc_command cmd = {0}; + + cmd.opcode = MMC_SET_BLOCK_COUNT; + cmd.arg = blockcount & 0x0000FFFF; + if (is_rel_write) + cmd.arg |= 1 << 31; + cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_AC; + return mmc_wait_for_cmd(card->host, &cmd, 5); +} +EXPORT_SYMBOL(mmc_set_blockcount); + static void mmc_hw_reset_for_init(struct mmc_host *host) { if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset) diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c index d96c643dde1c..35c2f85b1956 100644 --- a/drivers/mmc/core/debugfs.c +++ b/drivers/mmc/core/debugfs.c @@ -144,6 +144,22 @@ static int mmc_ios_show(struct seq_file *s, void *data) } seq_printf(s, "timing spec:\t%u (%s)\n", ios->timing, str); + switch (ios->signal_voltage) { + case MMC_SIGNAL_VOLTAGE_330: + str = "3.30 V"; + break; + case MMC_SIGNAL_VOLTAGE_180: + str = "1.80 V"; + break; + case MMC_SIGNAL_VOLTAGE_120: + str = "1.20 V"; + break; + default: + str = "invalid"; + break; + } + seq_printf(s, "signal voltage:\t%u (%s)\n", ios->chip_select, str); + return 0; } diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 7cc46382fd64..e6e39111e05b 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -239,7 +239,7 @@ static void mmc_select_card_type(struct mmc_card *card) { struct mmc_host *host = card->host; u8 card_type = card->ext_csd.raw_card_type & EXT_CSD_CARD_TYPE_MASK; - unsigned int caps = host->caps, caps2 = host->caps2; + u32 caps = host->caps, caps2 = host->caps2; unsigned int hs_max_dtr = 0; if (card_type & EXT_CSD_CARD_TYPE_26) @@ -491,6 +491,17 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd) card->ext_csd.rel_param = ext_csd[EXT_CSD_WR_REL_PARAM]; card->ext_csd.rst_n_function = ext_csd[EXT_CSD_RST_N_FUNCTION]; + + /* + * RPMB regions are defined in multiples of 128K. + */ + card->ext_csd.raw_rpmb_size_mult = ext_csd[EXT_CSD_RPMB_MULT]; + if (ext_csd[EXT_CSD_RPMB_MULT]) { + mmc_part_add(card, ext_csd[EXT_CSD_RPMB_MULT] << 17, + EXT_CSD_PART_CONFIG_ACC_RPMB, + "rpmb", 0, false, + MMC_BLK_DATA_AREA_RPMB); + } } card->ext_csd.raw_erased_mem_count = ext_csd[EXT_CSD_ERASED_MEM_CONT]; @@ -615,6 +626,8 @@ MMC_DEV_ATTR(serial, "0x%08x\n", card->cid.serial); MMC_DEV_ATTR(enhanced_area_offset, "%llu\n", card->ext_csd.enhanced_area_offset); MMC_DEV_ATTR(enhanced_area_size, "%u\n", card->ext_csd.enhanced_area_size); +MMC_DEV_ATTR(raw_rpmb_size_mult, "%#x\n", card->ext_csd.raw_rpmb_size_mult); +MMC_DEV_ATTR(rel_sectors, "%#x\n", card->ext_csd.rel_sectors); static struct attribute *mmc_std_attrs[] = { &dev_attr_cid.attr, @@ -630,6 +643,8 @@ static struct attribute *mmc_std_attrs[] = { &dev_attr_serial.attr, &dev_attr_enhanced_area_offset.attr, &dev_attr_enhanced_area_size.attr, + &dev_attr_raw_rpmb_size_mult.attr, + &dev_attr_rel_sectors.attr, NULL, }; @@ -1051,6 +1066,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, if (mmc_card_highspeed(card) || mmc_card_hs200(card)) { if (max_dtr > card->ext_csd.hs_max_dtr) max_dtr = card->ext_csd.hs_max_dtr; + if (mmc_card_highspeed(card) && (max_dtr > 52000000)) + max_dtr = 52000000; } else if (max_dtr > card->csd.max_dtr) { max_dtr = card->csd.max_dtr; } diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c index a0e172042e65..6d8f7012d73a 100644 --- a/drivers/mmc/core/mmc_ops.c +++ b/drivers/mmc/core/mmc_ops.c @@ -21,6 +21,8 @@ #include "core.h" #include "mmc_ops.h" +#define MMC_OPS_TIMEOUT_MS (10 * 60 * 1000) /* 10 minute timeout */ + static int _mmc_select_card(struct mmc_host *host, struct mmc_card *card) { int err; @@ -409,6 +411,7 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value, { int err; struct mmc_command cmd = {0}; + unsigned long timeout; u32 status; BUG_ON(!card); @@ -437,6 +440,7 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value, return 0; /* Must check status to be sure of no errors */ + timeout = jiffies + msecs_to_jiffies(MMC_OPS_TIMEOUT_MS); do { err = mmc_send_status(card, &status); if (err) @@ -445,6 +449,13 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value, break; if (mmc_host_is_spi(card->host)) break; + + /* Timeout if the device never leaves the program state. */ + if (time_after(jiffies, timeout)) { + pr_err("%s: Card stuck in programming state! %s\n", + mmc_hostname(card->host), __func__); + return -ETIMEDOUT; + } } while (R1_CURRENT_STATE(status) == R1_STATE_PRG); if (mmc_host_is_spi(card->host)) { diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c index 6bf68799fe97..5e57048e2c1d 100644 --- a/drivers/mmc/core/sdio_bus.c +++ b/drivers/mmc/core/sdio_bus.c @@ -193,7 +193,21 @@ static int sdio_bus_remove(struct device *dev) } #ifdef CONFIG_PM + +#ifdef CONFIG_PM_SLEEP +static int pm_no_operation(struct device *dev) +{ + /* + * Prevent the PM core from calling SDIO device drivers' suspend + * callback routines, which it is not supposed to do, by using this + * empty function as the bus type suspend callaback for SDIO. + */ + return 0; +} +#endif + static const struct dev_pm_ops sdio_bus_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(pm_no_operation, pm_no_operation) SET_RUNTIME_PM_OPS( pm_generic_runtime_suspend, pm_generic_runtime_resume, @@ -258,8 +272,7 @@ static void sdio_release_func(struct device *dev) sdio_free_func_cis(func); - if (func->info) - kfree(func->info); + kfree(func->info); kfree(func); } diff --git a/drivers/mmc/core/sdio_io.c b/drivers/mmc/core/sdio_io.c index 8f6f5ac131fc..78cb4d5d9d58 100644 --- a/drivers/mmc/core/sdio_io.c +++ b/drivers/mmc/core/sdio_io.c @@ -188,8 +188,7 @@ EXPORT_SYMBOL_GPL(sdio_set_block_size); */ static inline unsigned int sdio_max_byte_size(struct sdio_func *func) { - unsigned mval = min(func->card->host->max_seg_size, - func->card->host->max_blk_size); + unsigned mval = func->card->host->max_blk_size; if (mmc_blksz_for_byte_mode(func->card)) mval = min(mval, func->cur_blksize); @@ -311,11 +310,8 @@ static int sdio_io_rw_ext_helper(struct sdio_func *func, int write, /* Do the bulk of the transfer using block mode (if supported). */ if (func->card->cccr.multi_block && (size > sdio_max_byte_size(func))) { /* Blocks per command is limited by host count, host transfer - * size (we only use a single sg entry) and the maximum for - * IO_RW_EXTENDED of 511 blocks. */ - max_blocks = min(func->card->host->max_blk_count, - func->card->host->max_seg_size / func->cur_blksize); - max_blocks = min(max_blocks, 511u); + * size and the maximum for IO_RW_EXTENDED of 511 blocks. */ + max_blocks = min(func->card->host->max_blk_count, 511u); while (remainder >= func->cur_blksize) { unsigned blocks; diff --git a/drivers/mmc/core/sdio_ops.c b/drivers/mmc/core/sdio_ops.c index d29e20630eed..62508b457c4f 100644 --- a/drivers/mmc/core/sdio_ops.c +++ b/drivers/mmc/core/sdio_ops.c @@ -124,7 +124,10 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn, struct mmc_request mrq = {NULL}; struct mmc_command cmd = {0}; struct mmc_data data = {0}; - struct scatterlist sg; + struct scatterlist sg, *sg_ptr; + struct sg_table sgtable; + unsigned int nents, left_size, i; + unsigned int seg_size = card->host->max_seg_size; BUG_ON(!card); BUG_ON(fn > 7); @@ -152,15 +155,36 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn, /* Code in host drivers/fwk assumes that "blocks" always is >=1 */ data.blocks = blocks ? blocks : 1; data.flags = write ? MMC_DATA_WRITE : MMC_DATA_READ; - data.sg = &sg; - data.sg_len = 1; - sg_init_one(&sg, buf, data.blksz * data.blocks); + left_size = data.blksz * data.blocks; + nents = (left_size - 1) / seg_size + 1; + if (nents > 1) { + if (sg_alloc_table(&sgtable, nents, GFP_KERNEL)) + return -ENOMEM; + + data.sg = sgtable.sgl; + data.sg_len = nents; + + for_each_sg(data.sg, sg_ptr, data.sg_len, i) { + sg_set_page(sg_ptr, virt_to_page(buf + (i * seg_size)), + min(seg_size, left_size), + offset_in_page(buf + (i * seg_size))); + left_size = left_size - seg_size; + } + } else { + data.sg = &sg; + data.sg_len = 1; + + sg_init_one(&sg, buf, left_size); + } mmc_set_data_timeout(&data, card); mmc_wait_for_req(card->host, &mrq); + if (nents > 1) + sg_free_table(&sgtable); + if (cmd.error) return cmd.error; if (data.error) diff --git a/drivers/mmc/core/slot-gpio.c b/drivers/mmc/core/slot-gpio.c index 08c6b3dfe080..16a1c0b6f264 100644 --- a/drivers/mmc/core/slot-gpio.c +++ b/drivers/mmc/core/slot-gpio.c @@ -27,7 +27,13 @@ struct mmc_gpio { static irqreturn_t mmc_gpio_cd_irqt(int irq, void *dev_id) { /* Schedule a card detection after a debounce timeout */ - mmc_detect_change(dev_id, msecs_to_jiffies(100)); + struct mmc_host *host = dev_id; + + if (host->ops->card_event) + host->ops->card_event(host); + + mmc_detect_change(host, msecs_to_jiffies(200)); + return IRQ_HANDLED; } |
