diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/card/mmc_test.c | 8 | ||||
| -rw-r--r-- | drivers/mmc/core/mmc.c | 3 | ||||
| -rw-r--r-- | drivers/mmc/host/dw_mmc.c | 3 | ||||
| -rw-r--r-- | drivers/mmc/host/mxs-mmc.c | 4 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci-of-esdhc.c | 14 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 36 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 1 |
7 files changed, 52 insertions, 17 deletions
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c index 5a8dc5a76e0d..3678220964fe 100644 --- a/drivers/mmc/card/mmc_test.c +++ b/drivers/mmc/card/mmc_test.c @@ -2347,7 +2347,7 @@ static int mmc_test_ongoing_transfer(struct mmc_test_card *test, struct mmc_test_req *rq = mmc_test_req_alloc(); struct mmc_host *host = test->card->host; struct mmc_test_area *t = &test->area; - struct mmc_async_req areq; + struct mmc_test_async_req test_areq = { .test = test }; struct mmc_request *mrq; unsigned long timeout; bool expired = false; @@ -2363,8 +2363,8 @@ static int mmc_test_ongoing_transfer(struct mmc_test_card *test, mrq->sbc = &rq->sbc; mrq->cap_cmd_during_tfr = true; - areq.mrq = mrq; - areq.err_check = mmc_test_check_result_async; + test_areq.areq.mrq = mrq; + test_areq.areq.err_check = mmc_test_check_result_async; mmc_test_prepare_mrq(test, mrq, t->sg, t->sg_len, dev_addr, t->blocks, 512, write); @@ -2378,7 +2378,7 @@ static int mmc_test_ongoing_transfer(struct mmc_test_card *test, /* Start ongoing data request */ if (use_areq) { - mmc_start_req(host, &areq, &ret); + mmc_start_req(host, &test_areq.areq, &ret); if (ret) goto out_free; } else { diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 39fc5b2b96c5..df19777068a6 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -26,6 +26,8 @@ #include "mmc_ops.h" #include "sd_ops.h" +#define DEFAULT_CMD6_TIMEOUT_MS 500 + static const unsigned int tran_exp[] = { 10000, 100000, 1000000, 10000000, 0, 0, 0, 0 @@ -571,6 +573,7 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd) card->erased_byte = 0x0; /* eMMC v4.5 or later */ + card->ext_csd.generic_cmd6_time = DEFAULT_CMD6_TIMEOUT_MS; if (card->ext_csd.rev >= 6) { card->ext_csd.feature_support |= MMC_DISCARD_FEATURE; diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 4fcbc4012ed0..df478ae72e23 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -1058,6 +1058,7 @@ static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data) spin_unlock_irqrestore(&host->irq_lock, irqflags); if (host->dma_ops->start(host, sg_len)) { + host->dma_ops->stop(host); /* We can't do DMA, try PIO for this one */ dev_dbg(host->dev, "%s: fall back to PIO mode for current transfer\n", @@ -2940,7 +2941,7 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) return ERR_PTR(-ENOMEM); /* find reset controller when exist */ - pdata->rstc = devm_reset_control_get_optional(dev, NULL); + pdata->rstc = devm_reset_control_get_optional(dev, "reset"); if (IS_ERR(pdata->rstc)) { if (PTR_ERR(pdata->rstc) == -EPROBE_DEFER) return ERR_PTR(-EPROBE_DEFER); diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c index d839147e591d..44ecebd1ea8c 100644 --- a/drivers/mmc/host/mxs-mmc.c +++ b/drivers/mmc/host/mxs-mmc.c @@ -661,13 +661,13 @@ static int mxs_mmc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, mmc); + spin_lock_init(&host->lock); + ret = devm_request_irq(&pdev->dev, irq_err, mxs_mmc_irq_handler, 0, dev_name(&pdev->dev), host); if (ret) goto out_free_dma; - spin_lock_init(&host->lock); - ret = mmc_add_host(mmc); if (ret) goto out_free_dma; diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index fb71c866eacc..1bb11e4a9fe5 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -66,6 +66,20 @@ static u32 esdhc_readl_fixup(struct sdhci_host *host, return ret; } } + /* + * The DAT[3:0] line signal levels and the CMD line signal level are + * not compatible with standard SDHC register. The line signal levels + * DAT[7:0] are at bits 31:24 and the command line signal level is at + * bit 23. All other bits are the same as in the standard SDHC + * register. + */ + if (spec_reg == SDHCI_PRESENT_STATE) { + ret = value & 0x000fffff; + ret |= (value >> 4) & SDHCI_DATA_LVL_MASK; + ret |= (value << 1) & SDHCI_CMD_LVL; + return ret; + } + ret = value; return ret; } diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 71654b90227f..42ef3ebb1d8c 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2086,6 +2086,10 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode) if (!host->tuning_done) { pr_info(DRIVER_NAME ": Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock\n"); + + sdhci_do_reset(host, SDHCI_RESET_CMD); + sdhci_do_reset(host, SDHCI_RESET_DATA); + ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); ctrl &= ~SDHCI_CTRL_TUNED_CLK; ctrl &= ~SDHCI_CTRL_EXEC_TUNING; @@ -2286,10 +2290,8 @@ static bool sdhci_request_done(struct sdhci_host *host) for (i = 0; i < SDHCI_MAX_MRQS; i++) { mrq = host->mrqs_done[i]; - if (mrq) { - host->mrqs_done[i] = NULL; + if (mrq) break; - } } if (!mrq) { @@ -2320,6 +2322,17 @@ static bool sdhci_request_done(struct sdhci_host *host) * upon error conditions. */ if (sdhci_needs_reset(host, mrq)) { + /* + * Do not finish until command and data lines are available for + * reset. Note there can only be one other mrq, so it cannot + * also be in mrqs_done, otherwise host->cmd and host->data_cmd + * would both be null. + */ + if (host->cmd || host->data_cmd) { + spin_unlock_irqrestore(&host->lock, flags); + return true; + } + /* Some controllers need this kick or reset won't work here */ if (host->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET) /* This is to force an update */ @@ -2327,10 +2340,8 @@ static bool sdhci_request_done(struct sdhci_host *host) /* Spec says we should do both at the same time, but Ricoh controllers do not like that. */ - if (!host->cmd) - sdhci_do_reset(host, SDHCI_RESET_CMD); - if (!host->data_cmd) - sdhci_do_reset(host, SDHCI_RESET_DATA); + sdhci_do_reset(host, SDHCI_RESET_CMD); + sdhci_do_reset(host, SDHCI_RESET_DATA); host->pending_reset = false; } @@ -2338,6 +2349,8 @@ static bool sdhci_request_done(struct sdhci_host *host) if (!sdhci_has_requests(host)) sdhci_led_deactivate(host); + host->mrqs_done[i] = NULL; + mmiowb(); spin_unlock_irqrestore(&host->lock, flags); @@ -2512,9 +2525,6 @@ static void sdhci_data_irq(struct sdhci_host *host, u32 intmask) if (!host->data) { struct mmc_command *data_cmd = host->data_cmd; - if (data_cmd) - host->data_cmd = NULL; - /* * The "data complete" interrupt is also used to * indicate that a busy state has ended. See comment @@ -2522,11 +2532,13 @@ static void sdhci_data_irq(struct sdhci_host *host, u32 intmask) */ if (data_cmd && (data_cmd->flags & MMC_RSP_BUSY)) { if (intmask & SDHCI_INT_DATA_TIMEOUT) { + host->data_cmd = NULL; data_cmd->error = -ETIMEDOUT; sdhci_finish_mrq(host, data_cmd->mrq); return; } if (intmask & SDHCI_INT_DATA_END) { + host->data_cmd = NULL; /* * Some cards handle busy-end interrupt * before the command completed, so make @@ -2912,6 +2924,10 @@ int sdhci_runtime_resume_host(struct sdhci_host *host) spin_unlock_irqrestore(&host->lock, flags); } + if ((mmc->caps2 & MMC_CAP2_HS400_ES) && + mmc->ops->hs400_enhanced_strobe) + mmc->ops->hs400_enhanced_strobe(mmc, &mmc->ios); + spin_lock_irqsave(&host->lock, flags); host->runtime_suspended = false; diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 766df17fb7eb..2570455b219a 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -73,6 +73,7 @@ #define SDHCI_DATA_LVL_MASK 0x00F00000 #define SDHCI_DATA_LVL_SHIFT 20 #define SDHCI_DATA_0_LVL_MASK 0x00100000 +#define SDHCI_CMD_LVL 0x01000000 #define SDHCI_HOST_CONTROL 0x28 #define SDHCI_CTRL_LED 0x01 |