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omap_hsmmc: Fix MMC3 dma

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Data transfers on third OMAP3 MMC controller don't work
because DMA line numbers are only defined for MMC1 and MMC2.
Fix that and store line numbers in mmc_omap_host structure
to reduce code size.
Tested on OMAP3 pandora board.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Grazvydas Ignotas 2009-01-03 10:36:13 +00:00 committed by Pierre Ossman
parent 0683af4887
commit f3e2f1dd3b
1 changed files with 25 additions and 11 deletions
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36
drivers/mmc/host/omap_hsmmc.c
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@ -100,6 +100,7 @@
*/
#define OMAP_MMC1_DEVID 0
#define OMAP_MMC2_DEVID 1
#define OMAP_MMC3_DEVID 2
#define MMC_TIMEOUT_MS 20
#define OMAP_MMC_MASTER_CLOCK 96000000
@ -144,6 +145,7 @@ struct mmc_omap_host {
int irq;
int carddetect;
int use_dma, dma_ch;
int dma_line_tx, dma_line_rx;
int slot_id;
int dbclk_enabled;
int response_busy;
@ -602,17 +604,10 @@ static int mmc_omap_get_dma_sync_dev(struct mmc_omap_host *host,
{
int sync_dev;
if (data->flags & MMC_DATA_WRITE) {
if (host->id == OMAP_MMC1_DEVID)
sync_dev = OMAP24XX_DMA_MMC1_TX;
else
sync_dev = OMAP24XX_DMA_MMC2_TX;
} else {
if (host->id == OMAP_MMC1_DEVID)
sync_dev = OMAP24XX_DMA_MMC1_RX;
else
sync_dev = OMAP24XX_DMA_MMC2_RX;
}
if (data->flags & MMC_DATA_WRITE)
sync_dev = host->dma_line_tx;
else
sync_dev = host->dma_line_rx;
return sync_dev;
}
@ -1075,6 +1070,25 @@ static int __init omap_mmc_probe(struct platform_device *pdev)
omap_hsmmc_init(host);
/* Select DMA lines */
switch (host->id) {
case OMAP_MMC1_DEVID:
host->dma_line_tx = OMAP24XX_DMA_MMC1_TX;
host->dma_line_rx = OMAP24XX_DMA_MMC1_RX;
break;
case OMAP_MMC2_DEVID:
host->dma_line_tx = OMAP24XX_DMA_MMC2_TX;
host->dma_line_rx = OMAP24XX_DMA_MMC2_RX;
break;
case OMAP_MMC3_DEVID:
host->dma_line_tx = OMAP34XX_DMA_MMC3_TX;
host->dma_line_rx = OMAP34XX_DMA_MMC3_RX;
break;
default:
dev_err(mmc_dev(host->mmc), "Invalid MMC id\n");
goto err_irq;
}
/* Request IRQ for MMC operations */
ret = request_irq(host->irq, mmc_omap_irq, IRQF_DISABLED,
mmc_hostname(mmc), host);