The driver is capable of handling multi-element sg lists in both PIO and DMA modes. In DMA mode this also allows to use the DMA sg capability more efficiently and almost doubles the throughput.
Signed-off-by: Guennadi Liakhovetski <[email protected]> --- Sorry, one of the addresses was wrong last time, resending to all again to simplify commenting. drivers/mmc/host/tmio_mmc.c | 8 ++++++-- 1 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c index e7765a8..9034414 100644 --- a/drivers/mmc/host/tmio_mmc.c +++ b/drivers/mmc/host/tmio_mmc.c @@ -864,10 +864,14 @@ static int __devinit tmio_mmc_probe(struct platform_device *dev) goto host_free; mmc->ops = &tmio_mmc_ops; - mmc->caps = MMC_CAP_4_BIT_DATA; - mmc->caps |= pdata->capabilities; + mmc->caps = MMC_CAP_4_BIT_DATA | pdata->capabilities; mmc->f_max = pdata->hclk; mmc->f_min = mmc->f_max / 512; + mmc->max_segs = 32; + mmc->max_blk_size = 512; + mmc->max_blk_count = PAGE_CACHE_SIZE / mmc->max_blk_size * mmc->max_segs; + mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count; + mmc->max_seg_size = mmc->max_req_size; if (pdata->ocr_mask) mmc->ocr_avail = pdata->ocr_mask; else -- 1.7.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
