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Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/alcor.c35
-rw-r--r--drivers/mmc/host/sdhci-omap.c38
-rw-r--r--drivers/mmc/host/sdhci.c13
-rw-r--r--drivers/mmc/host/tifm_sd.c3
-rw-r--r--drivers/mmc/host/via-sdmmc.c10
5 files changed, 51 insertions, 48 deletions
diff --git a/drivers/mmc/host/alcor.c b/drivers/mmc/host/alcor.c
index 82a97866e0cf..6e6b7ade4b60 100644
--- a/drivers/mmc/host/alcor.c
+++ b/drivers/mmc/host/alcor.c
@@ -48,7 +48,6 @@ struct alcor_sdmmc_host {
struct mmc_command *cmd;
struct mmc_data *data;
unsigned int dma_on:1;
- unsigned int early_data:1;
struct mutex cmd_mutex;
@@ -144,8 +143,7 @@ static void alcor_data_set_dma(struct alcor_sdmmc_host *host)
host->sg_count--;
}
-static void alcor_trigger_data_transfer(struct alcor_sdmmc_host *host,
- bool early)
+static void alcor_trigger_data_transfer(struct alcor_sdmmc_host *host)
{
struct alcor_pci_priv *priv = host->alcor_pci;
struct mmc_data *data = host->data;
@@ -155,13 +153,6 @@ static void alcor_trigger_data_transfer(struct alcor_sdmmc_host *host,
ctrl |= AU6601_DATA_WRITE;
if (data->host_cookie == COOKIE_MAPPED) {
- if (host->early_data) {
- host->early_data = false;
- return;
- }
-
- host->early_data = early;
-
alcor_data_set_dma(host);
ctrl |= AU6601_DATA_DMA_MODE;
host->dma_on = 1;
@@ -231,6 +222,7 @@ static void alcor_prepare_sg_miter(struct alcor_sdmmc_host *host)
static void alcor_prepare_data(struct alcor_sdmmc_host *host,
struct mmc_command *cmd)
{
+ struct alcor_pci_priv *priv = host->alcor_pci;
struct mmc_data *data = cmd->data;
if (!data)
@@ -248,7 +240,7 @@ static void alcor_prepare_data(struct alcor_sdmmc_host *host,
if (data->host_cookie != COOKIE_MAPPED)
alcor_prepare_sg_miter(host);
- alcor_trigger_data_transfer(host, true);
+ alcor_write8(priv, 0, AU6601_DATA_XFER_CTRL);
}
static void alcor_send_cmd(struct alcor_sdmmc_host *host,
@@ -435,7 +427,7 @@ static int alcor_cmd_irq_done(struct alcor_sdmmc_host *host, u32 intmask)
if (!host->data)
return false;
- alcor_trigger_data_transfer(host, false);
+ alcor_trigger_data_transfer(host);
host->cmd = NULL;
return true;
}
@@ -456,7 +448,7 @@ static void alcor_cmd_irq_thread(struct alcor_sdmmc_host *host, u32 intmask)
if (!host->data)
alcor_request_complete(host, 1);
else
- alcor_trigger_data_transfer(host, false);
+ alcor_trigger_data_transfer(host);
host->cmd = NULL;
}
@@ -487,15 +479,9 @@ static int alcor_data_irq_done(struct alcor_sdmmc_host *host, u32 intmask)
break;
case AU6601_INT_READ_BUF_RDY:
alcor_trf_block_pio(host, true);
- if (!host->blocks)
- break;
- alcor_trigger_data_transfer(host, false);
return 1;
case AU6601_INT_WRITE_BUF_RDY:
alcor_trf_block_pio(host, false);
- if (!host->blocks)
- break;
- alcor_trigger_data_transfer(host, false);
return 1;
case AU6601_INT_DMA_END:
if (!host->sg_count)
@@ -508,8 +494,14 @@ static int alcor_data_irq_done(struct alcor_sdmmc_host *host, u32 intmask)
break;
}
- if (intmask & AU6601_INT_DATA_END)
- return 0;
+ if (intmask & AU6601_INT_DATA_END) {
+ if (!host->dma_on && host->blocks) {
+ alcor_trigger_data_transfer(host);
+ return 1;
+ } else {
+ return 0;
+ }
+ }
return 1;
}
@@ -967,7 +959,6 @@ static void alcor_timeout_timer(struct work_struct *work)
alcor_request_complete(host, 0);
}
- mmiowb();
mutex_unlock(&host->cmd_mutex);
}
diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c
index 5bbed477c9b1..9f20fff9781b 100644
--- a/drivers/mmc/host/sdhci-omap.c
+++ b/drivers/mmc/host/sdhci-omap.c
@@ -797,6 +797,43 @@ void sdhci_omap_reset(struct sdhci_host *host, u8 mask)
sdhci_reset(host, mask);
}
+#define CMD_ERR_MASK (SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX |\
+ SDHCI_INT_TIMEOUT)
+#define CMD_MASK (CMD_ERR_MASK | SDHCI_INT_RESPONSE)
+
+static u32 sdhci_omap_irq(struct sdhci_host *host, u32 intmask)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);
+
+ if (omap_host->is_tuning && host->cmd && !host->data_early &&
+ (intmask & CMD_ERR_MASK)) {
+
+ /*
+ * Since we are not resetting data lines during tuning
+ * operation, data error or data complete interrupts
+ * might still arrive. Mark this request as a failure
+ * but still wait for the data interrupt
+ */
+ if (intmask & SDHCI_INT_TIMEOUT)
+ host->cmd->error = -ETIMEDOUT;
+ else
+ host->cmd->error = -EILSEQ;
+
+ host->cmd = NULL;
+
+ /*
+ * Sometimes command error interrupts and command complete
+ * interrupt will arrive together. Clear all command related
+ * interrupts here.
+ */
+ sdhci_writel(host, intmask & CMD_MASK, SDHCI_INT_STATUS);
+ intmask &= ~CMD_MASK;
+ }
+
+ return intmask;
+}
+
static struct sdhci_ops sdhci_omap_ops = {
.set_clock = sdhci_omap_set_clock,
.set_power = sdhci_omap_set_power,
@@ -807,6 +844,7 @@ static struct sdhci_ops sdhci_omap_ops = {
.platform_send_init_74_clocks = sdhci_omap_init_74_clocks,
.reset = sdhci_omap_reset,
.set_uhs_signaling = sdhci_omap_set_uhs_signaling,
+ .irq = sdhci_omap_irq,
};
static int sdhci_omap_set_capabilities(struct sdhci_omap_host *omap_host)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index a8141ff9be03..42e1bad024f4 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1807,7 +1807,6 @@ void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
sdhci_send_command(host, mrq->cmd);
}
- mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
}
EXPORT_SYMBOL_GPL(sdhci_request);
@@ -2010,8 +2009,6 @@ void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
*/
if (host->quirks & SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS)
sdhci_do_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA);
-
- mmiowb();
}
EXPORT_SYMBOL_GPL(sdhci_set_ios);
@@ -2105,7 +2102,6 @@ static void sdhci_enable_sdio_irq_nolock(struct sdhci_host *host, int enable)
sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);
sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
- mmiowb();
}
}
@@ -2353,7 +2349,6 @@ void sdhci_send_tuning(struct sdhci_host *host, u32 opcode)
host->tuning_done = 0;
- mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
/* Wait for Buffer Read Ready interrupt */
@@ -2705,7 +2700,6 @@ static bool sdhci_request_done(struct sdhci_host *host)
host->mrqs_done[i] = NULL;
- mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
mmc_request_done(host->mmc, mrq);
@@ -2739,7 +2733,6 @@ static void sdhci_timeout_timer(struct timer_list *t)
sdhci_finish_mrq(host, host->cmd->mrq);
}
- mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
}
@@ -2770,7 +2763,6 @@ static void sdhci_timeout_data_timer(struct timer_list *t)
}
}
- mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
}
@@ -3251,7 +3243,6 @@ int sdhci_resume_host(struct sdhci_host *host)
mmc->ops->set_ios(mmc, &mmc->ios);
} else {
sdhci_init(host, (host->mmc->pm_flags & MMC_PM_KEEP_POWER));
- mmiowb();
}
if (host->irq_wake_enabled) {
@@ -3391,7 +3382,6 @@ void sdhci_cqe_enable(struct mmc_host *mmc)
mmc_hostname(mmc), host->ier,
sdhci_readl(host, SDHCI_INT_STATUS));
- mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
}
EXPORT_SYMBOL_GPL(sdhci_cqe_enable);
@@ -3416,7 +3406,6 @@ void sdhci_cqe_disable(struct mmc_host *mmc, bool recovery)
mmc_hostname(mmc), host->ier,
sdhci_readl(host, SDHCI_INT_STATUS));
- mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
}
EXPORT_SYMBOL_GPL(sdhci_cqe_disable);
@@ -4255,8 +4244,6 @@ int __sdhci_add_host(struct sdhci_host *host)
goto unirq;
}
- mmiowb();
-
ret = mmc_add_host(mmc);
if (ret)
goto unled;
diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c
index b6644ce296b2..35dd34b82a4d 100644
--- a/drivers/mmc/host/tifm_sd.c
+++ b/drivers/mmc/host/tifm_sd.c
@@ -889,7 +889,6 @@ static int tifm_sd_initialize_host(struct tifm_sd *host)
struct tifm_dev *sock = host->dev;
writel(0, sock->addr + SOCK_MMCSD_INT_ENABLE);
- mmiowb();
host->clk_div = 61;
host->clk_freq = 20000000;
writel(TIFM_MMCSD_RESET, sock->addr + SOCK_MMCSD_SYSTEM_CONTROL);
@@ -940,7 +939,6 @@ static int tifm_sd_initialize_host(struct tifm_sd *host)
writel(TIFM_MMCSD_CERR | TIFM_MMCSD_BRS | TIFM_MMCSD_EOC
| TIFM_MMCSD_ERRMASK,
sock->addr + SOCK_MMCSD_INT_ENABLE);
- mmiowb();
return 0;
}
@@ -1005,7 +1003,6 @@ static void tifm_sd_remove(struct tifm_dev *sock)
spin_lock_irqsave(&sock->lock, flags);
host->eject = 1;
writel(0, sock->addr + SOCK_MMCSD_INT_ENABLE);
- mmiowb();
spin_unlock_irqrestore(&sock->lock, flags);
tasklet_kill(&host->finish_tasklet);
diff --git a/drivers/mmc/host/via-sdmmc.c b/drivers/mmc/host/via-sdmmc.c
index 32c4211506fc..412395ac2935 100644
--- a/drivers/mmc/host/via-sdmmc.c
+++ b/drivers/mmc/host/via-sdmmc.c
@@ -686,7 +686,6 @@ static void via_sdc_request(struct mmc_host *mmc, struct mmc_request *mrq)
via_sdc_send_command(host, mrq->cmd);
}
- mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
}
@@ -711,7 +710,6 @@ static void via_sdc_set_power(struct via_crdr_mmc_host *host,
gatt &= ~VIA_CRDR_PCICLKGATT_PAD_PWRON;
writeb(gatt, host->pcictrl_mmiobase + VIA_CRDR_PCICLKGATT);
- mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
via_pwron_sleep(host);
@@ -770,7 +768,6 @@ static void via_sdc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (readb(addrbase + VIA_CRDR_PCISDCCLK) != clock)
writeb(clock, addrbase + VIA_CRDR_PCISDCCLK);
- mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
if (ios->power_mode != MMC_POWER_OFF)
@@ -830,7 +827,6 @@ static void via_reset_pcictrl(struct via_crdr_mmc_host *host)
via_restore_pcictrlreg(host);
via_restore_sdcreg(host);
- mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
}
@@ -925,7 +921,6 @@ static irqreturn_t via_sdc_isr(int irq, void *dev_id)
result = IRQ_HANDLED;
- mmiowb();
out:
spin_unlock(&sdhost->lock);
@@ -960,7 +955,6 @@ static void via_sdc_timeout(struct timer_list *t)
}
}
- mmiowb();
spin_unlock_irqrestore(&sdhost->lock, flags);
}
@@ -1012,7 +1006,6 @@ static void via_sdc_card_detect(struct work_struct *work)
tasklet_schedule(&host->finish_tasklet);
}
- mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
via_reset_pcictrl(host);
@@ -1020,7 +1013,6 @@ static void via_sdc_card_detect(struct work_struct *work)
spin_lock_irqsave(&host->lock, flags);
}
- mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
via_print_pcictrl(host);
@@ -1188,7 +1180,6 @@ static void via_sd_remove(struct pci_dev *pcidev)
/* Disable generating further interrupts */
writeb(0x0, sdhost->pcictrl_mmiobase + VIA_CRDR_PCIINTCTRL);
- mmiowb();
if (sdhost->mrq) {
pr_err("%s: Controller removed during "
@@ -1197,7 +1188,6 @@ static void via_sd_remove(struct pci_dev *pcidev)
/* make sure all DMA is stopped */
writel(VIA_CRDR_DMACTRL_SFTRST,
sdhost->ddma_mmiobase + VIA_CRDR_DMACTRL);
- mmiowb();
sdhost->mrq->cmd->error = -ENOMEDIUM;
if (sdhost->mrq->stop)
sdhost->mrq->stop->error = -ENOMEDIUM;
generated by cgit (git 2.34.1) at 2025-05-25 06:00:09 +0000