diff options
Diffstat (limited to 'drivers/mmc/host')
-rw-r--r-- | drivers/mmc/host/cavium.c | 4 | ||||
-rw-r--r-- | drivers/mmc/host/dw_mmc.c | 3 | ||||
-rw-r--r-- | drivers/mmc/host/meson-gx-mmc.c | 73 | ||||
-rw-r--r-- | drivers/mmc/host/mtk-sd.c | 2 | ||||
-rw-r--r-- | drivers/mmc/host/omap_hsmmc.c | 30 | ||||
-rw-r--r-- | drivers/mmc/host/sdhci-of-arasan.c | 3 | ||||
-rw-r--r-- | drivers/mmc/host/sdhci-of-at91.c | 3 | ||||
-rw-r--r-- | drivers/mmc/host/sdhci-of-esdhc.c | 7 | ||||
-rw-r--r-- | drivers/mmc/host/sdhci.c | 19 | ||||
-rw-r--r-- | drivers/mmc/host/tmio_mmc_core.c | 5 |
10 files changed, 125 insertions, 24 deletions
diff --git a/drivers/mmc/host/cavium.c b/drivers/mmc/host/cavium.c index fbd29f00fca0..d76fea1098e2 100644 --- a/drivers/mmc/host/cavium.c +++ b/drivers/mmc/host/cavium.c @@ -374,6 +374,7 @@ static int finish_dma_single(struct cvm_mmc_host *host, struct mmc_data *data) { data->bytes_xfered = data->blocks * data->blksz; data->error = 0; + dma_unmap_sg(host->dev, data->sg, data->sg_len, get_dma_dir(data)); return 1; } @@ -1046,7 +1047,8 @@ int cvm_mmc_of_slot_probe(struct device *dev, struct cvm_mmc_host *host) mmc->max_segs = 1; /* DMA size field can address up to 8 MB */ - mmc->max_seg_size = 8 * 1024 * 1024; + mmc->max_seg_size = min_t(unsigned int, 8 * 1024 * 1024, + dma_get_max_seg_size(host->dev)); mmc->max_req_size = mmc->max_seg_size; /* External DMA is in 512 byte blocks */ mmc->max_blk_size = 512; diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 5252885e5cda..32001d43e453 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -2046,8 +2046,7 @@ static void dw_mci_tasklet_func(unsigned long priv) * delayed. Allowing the transfer to take place * avoids races and keeps things simple. */ - if ((err != -ETIMEDOUT) && - (cmd->opcode == MMC_SEND_TUNING_BLOCK)) { + if (err != -ETIMEDOUT) { state = STATE_SENDING_DATA; continue; } diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c index 08a55c2e96e1..53ce1bb83d2c 100644 --- a/drivers/mmc/host/meson-gx-mmc.c +++ b/drivers/mmc/host/meson-gx-mmc.c @@ -21,6 +21,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> +#include <linux/delay.h> #include <linux/device.h> #include <linux/of_device.h> #include <linux/platform_device.h> @@ -74,9 +75,11 @@ #define CFG_CLK_ALWAYS_ON BIT(18) #define CFG_CHK_DS BIT(20) #define CFG_AUTO_CLK BIT(23) +#define CFG_ERR_ABORT BIT(27) #define SD_EMMC_STATUS 0x48 #define STATUS_BUSY BIT(31) +#define STATUS_DESC_BUSY BIT(30) #define STATUS_DATI GENMASK(23, 16) #define SD_EMMC_IRQ_EN 0x4c @@ -905,6 +908,7 @@ static void meson_mmc_start_cmd(struct mmc_host *mmc, struct mmc_command *cmd) cmd_cfg |= FIELD_PREP(CMD_CFG_CMD_INDEX_MASK, cmd->opcode); cmd_cfg |= CMD_CFG_OWNER; /* owned by CPU */ + cmd_cfg |= CMD_CFG_ERROR; /* stop in case of error */ meson_mmc_set_response_bits(cmd, &cmd_cfg); @@ -999,6 +1003,17 @@ static irqreturn_t meson_mmc_irq(int irq, void *dev_id) u32 irq_en, status, raw_status; irqreturn_t ret = IRQ_NONE; + irq_en = readl(host->regs + SD_EMMC_IRQ_EN); + raw_status = readl(host->regs + SD_EMMC_STATUS); + status = raw_status & irq_en; + + if (!status) { + dev_dbg(host->dev, + "Unexpected IRQ! irq_en 0x%08x - status 0x%08x\n", + irq_en, raw_status); + return IRQ_NONE; + } + if (WARN_ON(!host) || WARN_ON(!host->cmd)) return IRQ_NONE; @@ -1006,22 +1021,18 @@ static irqreturn_t meson_mmc_irq(int irq, void *dev_id) cmd = host->cmd; data = cmd->data; - irq_en = readl(host->regs + SD_EMMC_IRQ_EN); - raw_status = readl(host->regs + SD_EMMC_STATUS); - status = raw_status & irq_en; - cmd->error = 0; if (status & IRQ_CRC_ERR) { dev_dbg(host->dev, "CRC Error - status 0x%08x\n", status); cmd->error = -EILSEQ; - ret = IRQ_HANDLED; + ret = IRQ_WAKE_THREAD; goto out; } if (status & IRQ_TIMEOUTS) { dev_dbg(host->dev, "Timeout - status 0x%08x\n", status); cmd->error = -ETIMEDOUT; - ret = IRQ_HANDLED; + ret = IRQ_WAKE_THREAD; goto out; } @@ -1046,17 +1057,49 @@ out: /* ack all enabled interrupts */ writel(irq_en, host->regs + SD_EMMC_STATUS); + if (cmd->error) { + /* Stop desc in case of errors */ + u32 start = readl(host->regs + SD_EMMC_START); + + start &= ~START_DESC_BUSY; + writel(start, host->regs + SD_EMMC_START); + } + if (ret == IRQ_HANDLED) meson_mmc_request_done(host->mmc, cmd->mrq); - else if (ret == IRQ_NONE) - dev_warn(host->dev, - "Unexpected IRQ! status=0x%08x, irq_en=0x%08x\n", - raw_status, irq_en); spin_unlock(&host->lock); return ret; } +static int meson_mmc_wait_desc_stop(struct meson_host *host) +{ + int loop; + u32 status; + + /* + * It may sometimes take a while for it to actually halt. Here, we + * are giving it 5ms to comply + * + * If we don't confirm the descriptor is stopped, it might raise new + * IRQs after we have called mmc_request_done() which is bad. + */ + for (loop = 50; loop; loop--) { + status = readl(host->regs + SD_EMMC_STATUS); + if (status & (STATUS_BUSY | STATUS_DESC_BUSY)) + udelay(100); + else + break; + } + + if (status & (STATUS_BUSY | STATUS_DESC_BUSY)) { + dev_err(host->dev, "Timed out waiting for host to stop\n"); + return -ETIMEDOUT; + } + + return 0; +} + static irqreturn_t meson_mmc_irq_thread(int irq, void *dev_id) { struct meson_host *host = dev_id; @@ -1067,6 +1110,13 @@ static irqreturn_t meson_mmc_irq_thread(int irq, void *dev_id) if (WARN_ON(!cmd)) return IRQ_NONE; + if (cmd->error) { + meson_mmc_wait_desc_stop(host); + meson_mmc_request_done(host->mmc, cmd->mrq); + + return IRQ_HANDLED; + } + data = cmd->data; if (meson_mmc_bounce_buf_read(data)) { xfer_bytes = data->blksz * data->blocks; @@ -1107,6 +1157,9 @@ static void meson_mmc_cfg_init(struct meson_host *host) cfg |= FIELD_PREP(CFG_RC_CC_MASK, ilog2(SD_EMMC_CFG_CMD_GAP)); cfg |= FIELD_PREP(CFG_BLK_LEN_MASK, ilog2(SD_EMMC_CFG_BLK_SIZE)); + /* abort chain on R/W errors */ + cfg |= CFG_ERR_ABORT; + writel(cfg, host->regs + SD_EMMC_CFG); } diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index 267f7ab08420..a2ac9938d945 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -885,6 +885,7 @@ static void msdc_start_command(struct msdc_host *host, WARN_ON(host->cmd); host->cmd = cmd; + mod_delayed_work(system_wq, &host->req_timeout, DAT_TIMEOUT); if (!msdc_cmd_is_ready(host, mrq, cmd)) return; @@ -896,7 +897,6 @@ static void msdc_start_command(struct msdc_host *host, cmd->error = 0; rawcmd = msdc_cmd_prepare_raw_cmd(host, mrq, cmd); - mod_delayed_work(system_wq, &host->req_timeout, DAT_TIMEOUT); sdr_set_bits(host->base + MSDC_INTEN, cmd_ints_mask); writel(cmd->arg, host->base + SDC_ARG); diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 3f3ff7530b76..ea12712bd2c3 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1678,6 +1678,36 @@ static void omap_hsmmc_init_card(struct mmc_host *mmc, struct mmc_card *card) if (mmc_pdata(host)->init_card) mmc_pdata(host)->init_card(card); + else if (card->type == MMC_TYPE_SDIO || + card->type == MMC_TYPE_SD_COMBO) { + struct device_node *np = mmc_dev(mmc)->of_node; + + /* + * REVISIT: should be moved to sdio core and made more + * general e.g. by expanding the DT bindings of child nodes + * to provide a mechanism to provide this information: + * Documentation/devicetree/bindings/mmc/mmc-card.txt + */ + + np = of_get_compatible_child(np, "ti,wl1251"); + if (np) { + /* + * We have TI wl1251 attached to MMC3. Pass this + * information to the SDIO core because it can't be + * probed by normal methods. + */ + + dev_info(host->dev, "found wl1251\n"); + card->quirks |= MMC_QUIRK_NONSTD_SDIO; + card->cccr.wide_bus = 1; + card->cis.vendor = 0x104c; + card->cis.device = 0x9066; + card->cis.blksize = 512; + card->cis.max_dtr = 24000000; + card->ocr = 0x80; + of_node_put(np); + } + } } static void omap_hsmmc_enable_sdio_irq(struct mmc_host *mmc, int enable) diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c index 0720ea717011..e033ad477715 100644 --- a/drivers/mmc/host/sdhci-of-arasan.c +++ b/drivers/mmc/host/sdhci-of-arasan.c @@ -638,7 +638,8 @@ static int sdhci_arasan_probe(struct platform_device *pdev) ret = mmc_of_parse(host->mmc); if (ret) { - dev_err(&pdev->dev, "parsing dt failed (%d)\n", ret); + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "parsing dt failed (%d)\n", ret); goto unreg_clk; } diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c index 4e47ed6bc716..564e7be21e06 100644 --- a/drivers/mmc/host/sdhci-of-at91.c +++ b/drivers/mmc/host/sdhci-of-at91.c @@ -364,6 +364,9 @@ static int sdhci_at91_probe(struct platform_device *pdev) pm_runtime_set_autosuspend_delay(&pdev->dev, 50); pm_runtime_use_autosuspend(&pdev->dev); + /* HS200 is broken at this moment */ + host->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200; + ret = sdhci_add_host(host); if (ret) goto pm_runtime_disable; diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index c638dfd60fe7..f615491e3ff2 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -441,7 +441,12 @@ static int esdhc_of_enable_dma(struct sdhci_host *host) } value = sdhci_readl(host, ESDHC_DMA_SYSCTL); - value |= ESDHC_DMA_SNOOP; + + if (of_dma_is_coherent(dev->of_node)) + value |= ESDHC_DMA_SNOOP; + else + value &= ~ESDHC_DMA_SNOOP; + sdhci_writel(host, value, ESDHC_DMA_SYSCTL); return 0; } diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 1592feefdb1b..ccd2f93774fc 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1642,7 +1642,9 @@ void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing) ctrl_2 |= SDHCI_CTRL_UHS_SDR104; else if (timing == MMC_TIMING_UHS_SDR12) ctrl_2 |= SDHCI_CTRL_UHS_SDR12; - else if (timing == MMC_TIMING_UHS_SDR25) + else if (timing == MMC_TIMING_SD_HS || + timing == MMC_TIMING_MMC_HS || + timing == MMC_TIMING_UHS_SDR25) ctrl_2 |= SDHCI_CTRL_UHS_SDR25; else if (timing == MMC_TIMING_UHS_SDR50) ctrl_2 |= SDHCI_CTRL_UHS_SDR50; @@ -2667,6 +2669,7 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *intmask_p) static void sdhci_adma_show_error(struct sdhci_host *host) { void *desc = host->adma_table; + dma_addr_t dma = host->adma_addr; sdhci_dumpregs(host); @@ -2674,18 +2677,21 @@ static void sdhci_adma_show_error(struct sdhci_host *host) struct sdhci_adma2_64_desc *dma_desc = desc; if (host->flags & SDHCI_USE_64_BIT_DMA) - DBG("%p: DMA 0x%08x%08x, LEN 0x%04x, Attr=0x%02x\n", - desc, le32_to_cpu(dma_desc->addr_hi), + SDHCI_DUMP("%08llx: DMA 0x%08x%08x, LEN 0x%04x, Attr=0x%02x\n", + (unsigned long long)dma, + le32_to_cpu(dma_desc->addr_hi), le32_to_cpu(dma_desc->addr_lo), le16_to_cpu(dma_desc->len), le16_to_cpu(dma_desc->cmd)); else - DBG("%p: DMA 0x%08x, LEN 0x%04x, Attr=0x%02x\n", - desc, le32_to_cpu(dma_desc->addr_lo), + SDHCI_DUMP("%08llx: DMA 0x%08x, LEN 0x%04x, Attr=0x%02x\n", + (unsigned long long)dma, + le32_to_cpu(dma_desc->addr_lo), le16_to_cpu(dma_desc->len), le16_to_cpu(dma_desc->cmd)); desc += host->desc_sz; + dma += host->desc_sz; if (dma_desc->cmd & cpu_to_le16(ADMA2_END)) break; @@ -2761,7 +2767,8 @@ static void sdhci_data_irq(struct sdhci_host *host, u32 intmask) != MMC_BUS_TEST_R) host->data->error = -EILSEQ; else if (intmask & SDHCI_INT_ADMA_ERROR) { - pr_err("%s: ADMA error\n", mmc_hostname(host->mmc)); + pr_err("%s: ADMA error: 0x%08x\n", mmc_hostname(host->mmc), + intmask); sdhci_adma_show_error(host); host->data->error = -EIO; if (host->ops->adma_workaround) diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c index 2437fcde915a..2fd862dc9770 100644 --- a/drivers/mmc/host/tmio_mmc_core.c +++ b/drivers/mmc/host/tmio_mmc_core.c @@ -914,8 +914,9 @@ static void tmio_mmc_finish_request(struct tmio_mmc_host *host) if (mrq->cmd->error || (mrq->data && mrq->data->error)) tmio_mmc_abort_dma(host); - if (host->check_scc_error) - host->check_scc_error(host); + /* SCC error means retune, but executed command was still successful */ + if (host->check_scc_error && host->check_scc_error(host)) + mmc_retune_needed(host->mmc); /* If SET_BLOCK_COUNT, continue with main command */ if (host->mrq && !mrq->cmd->error) { |