diff options
| author | Bridge Wu <mingqiao.wu@gmail.com> | 2007-09-25 19:11:00 +0200 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2007-09-25 19:11:49 +0200 |
| commit | 5d3ad4e8a12e538eead0a37d22b1ba6aec0f2127 (patch) | |
| tree | cb1d543cb7c7304188b002dd12cca9eb61c05c5a /drivers/mmc/host | |
| parent | mmc: pxamci: set proper buswidth capabilities according to PXA flavor (diff) | |
| download | linux-5d3ad4e8a12e538eead0a37d22b1ba6aec0f2127.tar.xz linux-5d3ad4e8a12e538eead0a37d22b1ba6aec0f2127.zip | |
mmc: pxamci: add SDIO card interrupt reporting capability
Again, only available from PXA27x.
Signed-off-by: Bridge Wu <mingqiao.wu@gmail.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc/host')
| -rw-r--r-- | drivers/mmc/host/pxamci.c | 28 | ||||
| -rw-r--r-- | drivers/mmc/host/pxamci.h | 1 |
2 files changed, 24 insertions, 5 deletions
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index 6549f546df55..91e25683b397 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -309,6 +309,10 @@ static irqreturn_t pxamci_irq(int irq, void *devid) handled |= pxamci_cmd_done(host, stat); if (ireg & DATA_TRAN_DONE) handled |= pxamci_data_done(host, stat); + if (ireg & SDIO_INT) { + mmc_signal_sdio_irq(host->mmc); + handled = 1; + } } return IRQ_RETVAL(handled); @@ -391,10 +395,21 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) host->clkrt, host->cmdat); } +static void pxamci_enable_sdio_irq(struct mmc_host *host, int enable) +{ + struct pxamci_host *pxa_host = mmc_priv(host); + + if (enable) + pxamci_enable_irq(pxa_host, SDIO_INT); + else + pxamci_disable_irq(pxa_host, SDIO_INT); +} + static const struct mmc_host_ops pxamci_ops = { - .request = pxamci_request, - .get_ro = pxamci_get_ro, - .set_ios = pxamci_set_ios, + .request = pxamci_request, + .get_ro = pxamci_get_ro, + .set_ios = pxamci_set_ios, + .enable_sdio_irq = pxamci_enable_sdio_irq, }; static void pxamci_dma_irq(int dma, void *devid) @@ -466,8 +481,11 @@ static int pxamci_probe(struct platform_device *pdev) host->pdata->ocr_mask : MMC_VDD_32_33|MMC_VDD_33_34; mmc->caps = 0; - if (!cpu_is_pxa21x() && !cpu_is_pxa25x()) - mmc->caps |= MMC_CAP_4_BIT_DATA; + host->cmdat = 0; + if (!cpu_is_pxa21x() && !cpu_is_pxa25x()) { + mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ; + host->cmdat |= CMDAT_SDIO_INT_EN; + } host->sg_cpu = dma_alloc_coherent(&pdev->dev, PAGE_SIZE, &host->sg_dma, GFP_KERNEL); if (!host->sg_cpu) { diff --git a/drivers/mmc/host/pxamci.h b/drivers/mmc/host/pxamci.h index 5655be823a00..3153e779d46a 100644 --- a/drivers/mmc/host/pxamci.h +++ b/drivers/mmc/host/pxamci.h @@ -25,6 +25,7 @@ #define SPI_EN (1 << 0) #define MMC_CMDAT 0x0010 +#define CMDAT_SDIO_INT_EN (1 << 11) #define CMDAT_SD_4DAT (1 << 8) #define CMDAT_DMAEN (1 << 7) #define CMDAT_INIT (1 << 6) |