[PATCH 0/2] mmc: sdhci-iproc: Improve bcm2835 performance

[Ulf Hansson]

On 30 December 2016 at 16:24, Stefan Wahren <stefan.wahren at i2se.com> wrote:
> The sdhci-iproc waste a lot performance potential on bcm2835 because of
> missing capabilities in the platform data. This patch series tries to fix
> this.
>
> Raspberry Pi Zero with a class 10 sdhc card
>
> Before:
> dd if=/dev/zero conv=fdatasync of=test bs=8k count=10000
> 81920000 Bytes (82 MB), 11,0044 s, 7,4 MB/s
>
> sudo dd if=/dev/mmcblk0p1 of=/dev/null
> 62914560 Bytes (63 MB), 5,83784 s, 10,8 MB/s
>
> After:
> dd if=/dev/zero conv=fdatasync of=test bs=8k count=10000
> 81920000 Bytes (82 MB), 9,76938 s, 8,4 MB/s
>
> sudo dd if=/dev/mmcblk0p1 of=/dev/null
> 62914560 Bytes (63 MB), 4,73651 s, 13,3 MB/s
>
> Raspberry Pi Compute Module
>
> Before:
> dd if=/dev/zero conv=fdatasync of=test bs=8k count=10000
> 81920000 Bytes (82 MB), 27,4257 s, 3,0 MB/s
>
> sudo dd if=/dev/mmcblk0p1 of=/dev/null
> 66060288 Bytes (66 MB), 21,4365 s, 3,1 MB/s
>
> After:
> dd if=/dev/zero conv=fdatasync of=test bs=8k count=10000
> 81920000 Bytes (82 MB), 7,19661 s, 11,4 MB/s
>
> sudo dd if=/dev/mmcblk0p1 of=/dev/null
> 66060288 Bytes (66 MB), 4,76453 s, 13,9 MB/s
>
> Any tests with a Raspberry Pi 3 (SD and Wifi over SDIO) are welcome.
>
> Stefan Wahren (2):
>   mmc: sdhci-iproc: Apply caps from bcm2835-mmc driver
>   mmc: sdhci-iproc: Increase max_blk_size for bcm2835
>
>  drivers/mmc/host/sdhci-iproc.c |   11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
>
> --
> 1.7.9.5
>

Thanks, applied for next!

Kind regards
Uffe