diff options
| author |   Ludovic Barre <ludovic.barre@st.com> | 2018-10-08 14:08:44 +0200 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2018-10-09 09:13:04 +0200 |
| commit | daf9713c5ef8c3ffb0bdf7de11b53b2b2756c4f1 (patch) | |
| tree | 68df91f5c84948d8988210fd0a7349c5c020635b /drivers/mmc | |
| parent | mmc: mmci: add datactrl block size variant property (diff) | |
| download | linux-dev-daf9713c5ef8c3ffb0bdf7de11b53b2b2756c4f1.tar.xz linux-dev-daf9713c5ef8c3ffb0bdf7de11b53b2b2756c4f1.zip | |
mmc: mmci: expand startbiterr to irqmask and error check
All variants don't pretend to have a startbiterr.
-While data error check, if status register return an error
(like MCI_DATACRCFAIL) we must avoid to check MCI_STARTBITERR
(if not desired).
-expand start_err to MCI_IRQENABLE to avoid to set this bit by default.
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 27 | ||||
| -rw-r--r-- | drivers/mmc/host/mmci.h | 6 |
2 files changed, 19 insertions, 14 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 0e8b65d6a74a..737adf465a60 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -1042,14 +1042,18 @@ static void mmci_data_irq(struct mmci_host *host, struct mmc_data *data, unsigned int status) { + unsigned int status_err; + /* Make sure we have data to handle */ if (!data) return; /* First check for errors */ - if (status & (MCI_DATACRCFAIL | MCI_DATATIMEOUT | - host->variant->start_err | - MCI_TXUNDERRUN | MCI_RXOVERRUN)) { + status_err = status & (host->variant->start_err | + MCI_DATACRCFAIL | MCI_DATATIMEOUT | + MCI_TXUNDERRUN | MCI_RXOVERRUN); + + if (status_err) { u32 remain, success; /* Terminate the DMA transfer */ @@ -1066,18 +1070,18 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data, success = data->blksz * data->blocks - remain; dev_dbg(mmc_dev(host->mmc), "MCI ERROR IRQ, status 0x%08x at 0x%08x\n", - status, success); - if (status & MCI_DATACRCFAIL) { + status_err, success); + if (status_err & MCI_DATACRCFAIL) { /* Last block was not successful */ success -= 1; data->error = -EILSEQ; - } else if (status & MCI_DATATIMEOUT) { + } else if (status_err & MCI_DATATIMEOUT) { data->error = -ETIMEDOUT; - } else if (status & MCI_STARTBITERR) { + } else if (status_err & MCI_STARTBITERR) { data->error = -ECOMM; - } else if (status & MCI_TXUNDERRUN) { + } else if (status_err & MCI_TXUNDERRUN) { data->error = -EIO; - } else if (status & MCI_RXOVERRUN) { + } else if (status_err & MCI_RXOVERRUN) { if (success > host->variant->fifosize) success -= host->variant->fifosize; else @@ -1918,7 +1922,7 @@ static int mmci_probe(struct amba_device *dev, goto clk_disable; } - writel(MCI_IRQENABLE, host->base + MMCIMASK0); + writel(MCI_IRQENABLE | variant->start_err, host->base + MMCIMASK0); amba_set_drvdata(dev, mmc); @@ -2005,7 +2009,8 @@ static void mmci_restore(struct mmci_host *host) writel(host->datactrl_reg, host->base + MMCIDATACTRL); writel(host->pwr_reg, host->base + MMCIPOWER); } - writel(MCI_IRQENABLE, host->base + MMCIMASK0); + writel(MCI_IRQENABLE | host->variant->start_err, + host->base + MMCIMASK0); mmci_reg_delay(host); spin_unlock_irqrestore(&host->lock, flags); diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index d5979e82db49..8e7ea44dafb1 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -181,9 +181,9 @@ #define MMCIFIFO 0x080 /* to 0x0bc */ #define MCI_IRQENABLE \ - (MCI_CMDCRCFAILMASK|MCI_DATACRCFAILMASK|MCI_CMDTIMEOUTMASK| \ - MCI_DATATIMEOUTMASK|MCI_TXUNDERRUNMASK|MCI_RXOVERRUNMASK| \ - MCI_CMDRESPENDMASK|MCI_CMDSENTMASK|MCI_STARTBITERRMASK) + (MCI_CMDCRCFAILMASK | MCI_DATACRCFAILMASK | MCI_CMDTIMEOUTMASK | \ + MCI_DATATIMEOUTMASK | MCI_TXUNDERRUNMASK | MCI_RXOVERRUNMASK | \ + MCI_CMDRESPENDMASK | MCI_CMDSENTMASK) /* These interrupts are directed to IRQ1 when two IRQ lines are available */ #define MCI_IRQ1MASK \ |