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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>
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parent
df456f479a
commit
5d3ad4e8a1
2 changed files with 24 additions and 5 deletions
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@ -309,6 +309,10 @@ static irqreturn_t pxamci_irq(int irq, void *devid)
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handled |= pxamci_cmd_done(host, stat);
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if (ireg & DATA_TRAN_DONE)
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handled |= pxamci_data_done(host, stat);
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if (ireg & SDIO_INT) {
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mmc_signal_sdio_irq(host->mmc);
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handled = 1;
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}
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}
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return IRQ_RETVAL(handled);
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@ -391,10 +395,21 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
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host->clkrt, host->cmdat);
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}
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static void pxamci_enable_sdio_irq(struct mmc_host *host, int enable)
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{
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struct pxamci_host *pxa_host = mmc_priv(host);
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if (enable)
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pxamci_enable_irq(pxa_host, SDIO_INT);
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else
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pxamci_disable_irq(pxa_host, SDIO_INT);
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}
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static const struct mmc_host_ops pxamci_ops = {
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.request = pxamci_request,
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.get_ro = pxamci_get_ro,
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.set_ios = pxamci_set_ios,
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.enable_sdio_irq = pxamci_enable_sdio_irq,
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};
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static void pxamci_dma_irq(int dma, void *devid)
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@ -466,8 +481,11 @@ static int pxamci_probe(struct platform_device *pdev)
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host->pdata->ocr_mask :
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MMC_VDD_32_33|MMC_VDD_33_34;
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mmc->caps = 0;
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if (!cpu_is_pxa21x() && !cpu_is_pxa25x())
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mmc->caps |= MMC_CAP_4_BIT_DATA;
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host->cmdat = 0;
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if (!cpu_is_pxa21x() && !cpu_is_pxa25x()) {
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mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;
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host->cmdat |= CMDAT_SDIO_INT_EN;
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}
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host->sg_cpu = dma_alloc_coherent(&pdev->dev, PAGE_SIZE, &host->sg_dma, GFP_KERNEL);
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if (!host->sg_cpu) {
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@ -25,6 +25,7 @@
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#define SPI_EN (1 << 0)
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#define MMC_CMDAT 0x0010
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#define CMDAT_SDIO_INT_EN (1 << 11)
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#define CMDAT_SD_4DAT (1 << 8)
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#define CMDAT_DMAEN (1 << 7)
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#define CMDAT_INIT (1 << 6)
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