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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>
This commit is contained in:
Bridge Wu 2007-09-25 19:11:00 +02:00 committed by Pierre Ossman
parent df456f479a
commit 5d3ad4e8a1
2 changed files with 24 additions and 5 deletions
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28
drivers/mmc/host/pxamci.c
View File

@ -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) {

1
drivers/mmc/host/pxamci.h
View File

@ -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)