diff options
Diffstat (limited to 'drivers/mmc/host')
| -rw-r--r-- | drivers/mmc/host/renesas_sdhi_core.c | 3 | ||||
| -rw-r--r-- | drivers/mmc/host/s3cmci.c | 6 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci-msm.c | 14 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 28 |
4 files changed, 39 insertions, 12 deletions
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c index fcf7235d5742..157e1d9e7725 100644 --- a/drivers/mmc/host/renesas_sdhi_core.c +++ b/drivers/mmc/host/renesas_sdhi_core.c @@ -24,6 +24,7 @@ #include <linux/kernel.h> #include <linux/clk.h> #include <linux/slab.h> +#include <linux/module.h> #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/mmc/host.h> @@ -667,3 +668,5 @@ int renesas_sdhi_remove(struct platform_device *pdev) return 0; } EXPORT_SYMBOL_GPL(renesas_sdhi_remove); + +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c index f7f157a62a4a..555c7f133eb8 100644 --- a/drivers/mmc/host/s3cmci.c +++ b/drivers/mmc/host/s3cmci.c @@ -1424,7 +1424,9 @@ static const struct file_operations s3cmci_fops_state = { struct s3cmci_reg { unsigned short addr; unsigned char *name; -} debug_regs[] = { +}; + +static const struct s3cmci_reg debug_regs[] = { DBG_REG(CON), DBG_REG(PRE), DBG_REG(CMDARG), @@ -1446,7 +1448,7 @@ struct s3cmci_reg { static int s3cmci_regs_show(struct seq_file *seq, void *v) { struct s3cmci_host *host = seq->private; - struct s3cmci_reg *rptr = debug_regs; + const struct s3cmci_reg *rptr = debug_regs; for (; rptr->name; rptr++) seq_printf(seq, "SDI%s\t=0x%08x\n", rptr->name, diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c index 3fb7d2eec93f..c283291db705 100644 --- a/drivers/mmc/host/sdhci-msm.c +++ b/drivers/mmc/host/sdhci-msm.c @@ -29,6 +29,9 @@ #define CORE_VERSION_MAJOR_MASK (0xf << CORE_VERSION_MAJOR_SHIFT) #define CORE_VERSION_MINOR_MASK 0xff +#define CORE_MCI_GENERICS 0x70 +#define SWITCHABLE_SIGNALING_VOLTAGE BIT(29) + #define CORE_HC_MODE 0x78 #define HC_MODE_EN 0x1 #define CORE_POWER 0x0 @@ -1028,12 +1031,23 @@ static void sdhci_msm_check_power_status(struct sdhci_host *host, u32 req_type) struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host); bool done = false; + u32 val; pr_debug("%s: %s: request %d curr_pwr_state %x curr_io_level %x\n", mmc_hostname(host->mmc), __func__, req_type, msm_host->curr_pwr_state, msm_host->curr_io_level); /* + * The power interrupt will not be generated for signal voltage + * switches if SWITCHABLE_SIGNALING_VOLTAGE in MCI_GENERICS is not set. + */ + val = readl(msm_host->core_mem + CORE_MCI_GENERICS); + if ((req_type & REQ_IO_HIGH || req_type & REQ_IO_LOW) && + !(val & SWITCHABLE_SIGNALING_VOLTAGE)) { + return; + } + + /* * The IRQ for request type IO High/LOW will be generated when - * there is a state change in 1.8V enable bit (bit 3) of * SDHCI_HOST_CONTROL2 register. The reset state of that bit is 0 diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 2f14334e42df..e9290a3439d5 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -21,6 +21,7 @@ #include <linux/dma-mapping.h> #include <linux/slab.h> #include <linux/scatterlist.h> +#include <linux/swiotlb.h> #include <linux/regulator/consumer.h> #include <linux/pm_runtime.h> #include <linux/of.h> @@ -3651,22 +3652,29 @@ int sdhci_setup_host(struct sdhci_host *host) spin_lock_init(&host->lock); /* + * Maximum number of sectors in one transfer. Limited by SDMA boundary + * size (512KiB). Note some tuning modes impose a 4MiB limit, but this + * is less anyway. + */ + mmc->max_req_size = 524288; + + /* * Maximum number of segments. Depends on if the hardware * can do scatter/gather or not. */ - if (host->flags & SDHCI_USE_ADMA) + if (host->flags & SDHCI_USE_ADMA) { mmc->max_segs = SDHCI_MAX_SEGS; - else if (host->flags & SDHCI_USE_SDMA) + } else if (host->flags & SDHCI_USE_SDMA) { mmc->max_segs = 1; - else /* PIO */ + if (swiotlb_max_segment()) { + unsigned int max_req_size = (1 << IO_TLB_SHIFT) * + IO_TLB_SEGSIZE; + mmc->max_req_size = min(mmc->max_req_size, + max_req_size); + } + } else { /* PIO */ mmc->max_segs = SDHCI_MAX_SEGS; - - /* - * Maximum number of sectors in one transfer. Limited by SDMA boundary - * size (512KiB). Note some tuning modes impose a 4MiB limit, but this - * is less anyway. - */ - mmc->max_req_size = 524288; + } /* * Maximum segment size. Could be one segment with the maximum number |
