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authorPierre Ossman <drzeus@drzeus.cx>2006-11-21 17:55:45 +0100
committerPierre Ossman <drzeus@drzeus.cx>2007-02-04 20:54:10 +0100
commit55db890a838c7b37256241b1fc53d6344aa79cc0 (patch)
tree02d5868f69a15eea69aaf517b67bc9cbdffe2ff8 /drivers/mmc/omap.c
parentfe4a3c7a20f14d86022a8132adbf6ddb98e7197c (diff)
mmc: Allow host drivers to specify max block count
Many controllers have an upper limit on the number of blocks that can be transferred in one request. Allow the host drivers to specify this and make sure we avoid hitting this limit. Also change the max_sectors field to avoid confusion. This makes it map less directly to the block layer limits, but as they didn't apply directly on MMC cards anyway, this isn't a great loss. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc/omap.c')
-rw-r--r--drivers/mmc/omap.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/mmc/omap.c b/drivers/mmc/omap.c
index fa69a0dc596..1e96a2f6502 100644
--- a/drivers/mmc/omap.c
+++ b/drivers/mmc/omap.c
@@ -1100,8 +1100,9 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
mmc->max_phys_segs = 32;
mmc->max_hw_segs = 32;
mmc->max_blk_size = 2048; /* BLEN is 11 bits (+1) */
- mmc->max_sectors = 256; /* NBLK max 11-bits, OMAP also limited by DMA */
- mmc->max_seg_size = mmc->max_sectors * 512;
+ mmc->max_blk_count = 2048; /* NBLK is 11 bits (+1) */
+ mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
+ mmc->max_seg_size = mmc->max_req_size;
if (host->power_pin >= 0) {
if ((ret = omap_request_gpio(host->power_pin)) != 0) {