[PATCH 2/6] mmc: bcm2835: Increase max_blk_size to 1024
Eric Anholt
eric at anholt.net
Mon Feb 13 12:45:54 PST 2017
Stefan Wahren <stefan.wahren at i2se.com> writes:
> In order to use the same max_blk_size like the sdhci-iproc does
> we need to increase it to 1024 bytes. This results in a
> little write performance gain for MMC:
I'm confused -- this series is for SDHOST, right? Why are you comparing
to sdhci-iproc (the EMMC controller), then?
> Before: 13,8 MB/s
> After: 14,0 MB/s
>
> Signed-off-by: Stefan Wahren <stefan.wahren at i2se.com>
> ---
> drivers/mmc/host/bcm2835.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c
> index 1704082..bbb1084 100644
> --- a/drivers/mmc/host/bcm2835.c
> +++ b/drivers/mmc/host/bcm2835.c
> @@ -1331,7 +1331,7 @@ int bcm2835_add_host(struct bcm2835_host *host)
> mmc->max_segs = 128;
> mmc->max_req_size = 524288;
> mmc->max_seg_size = mmc->max_req_size;
> - mmc->max_blk_size = 512;
> + mmc->max_blk_size = 1024;
> mmc->max_blk_count = 65535;
>
> /* report supported voltage ranges */
> --
> 1.7.9.5
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 832 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-rpi-kernel/attachments/20170213/6d86263a/attachment.sig>
More information about the linux-rpi-kernel
mailing list