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omap mmc: Add better MMC low-level init

Browse source 
This will simplify the MMC low-level init, and make it more
flexible to add support for a newer MMC controller in the
following patches.

The patch rearranges platform data and gets rid of slot vs
controller confusion in the old data structures. Also fix
device id numbering in the clock code.

Some code snippets are based on an earlier patch by
Russell King <[email protected]>.

Cc: Pierre Ossman <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
This commit is contained in:
Tony Lindgren 2008-12-10 17:37:16 -08:00
commit d88746652b
16 changed files with 529 additions and 283 deletions
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7
drivers/mmc/host/omap.c
View file

@ -1015,7 +1015,7 @@ static int mmc_omap_get_dma_channel(struct mmc_omap_host *host, struct mmc_data
}
if (is_read) {
if (host->id == 1) {
if (host->id == 0) {
sync_dev = OMAP_DMA_MMC_RX;
dma_dev_name = "MMC1 read";
} else {
@ -1023,7 +1023,7 @@ static int mmc_omap_get_dma_channel(struct mmc_omap_host *host, struct mmc_data
dma_dev_name = "MMC2 read";
}
} else {
if (host->id == 1) {
if (host->id == 0) {
sync_dev = OMAP_DMA_MMC_TX;
dma_dev_name = "MMC1 write";
} else {
@ -1317,7 +1317,7 @@ static int __init mmc_omap_new_slot(struct mmc_omap_host *host, int id)
host->slots[id] = slot;
mmc->caps = 0;
if (host->pdata->conf.wire4)
if (host->pdata->slots[id].wire4)
mmc->caps |= MMC_CAP_4_BIT_DATA;
mmc->ops = &mmc_omap_ops;
@ -1451,6 +1451,7 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
host->irq = irq;
host->use_dma = 1;
host->dev->dma_mask = &pdata->dma_mask;
host->dma_ch = -1;
host->irq = irq;