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mmc: bcm2835: Take SWIOTLB memory size limitation into account 

Make sure the sdhost driver doesn't use requests bigger than SWIOTLB
can handle.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Stefan Wahren 2019-08-24 08:31:04 +02:00 committed by Ulf Hansson
parent bb7b8ec62d
commit d4dd9bccf4
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/host/bcm2835.c
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@ -1314,7 +1314,7 @@ static int bcm2835_add_host(struct bcm2835_host *host)
}
mmc->max_segs = 128;
mmc->max_req_size = 524288;
mmc->max_req_size = min_t(size_t, 524288, dma_max_mapping_size(dev));
mmc->max_seg_size = mmc->max_req_size;
mmc->max_blk_size = 1024;
mmc->max_blk_count = 65535;