[PATCH 0/3] mmc: sdhci-iproc: add bcm2835 support
Ulf Hansson
ulf.hansson at linaro.org
Fri Jan 29 03:41:13 PST 2016
On 27 January 2016 at 23:25, Stefan Wahren <stefan.wahren at i2se.com> wrote:
> This patch series based on the suggestion of Scott Branden to implement
> bcm2835 support into sdhci-iproc [1].
>
> These changes provide the following advantages:
> * no need to maintain a separate driver for bcm2835
> * improve support and test coverage of bcm2835 mmc support
> * get the rid of SDHCI_CAPABILITIES hack in bcm2835_sdhci_readl
> * increase write performance by avoiding delays in write ops
>
> Patch 1 prepare sdhci-iproc for another platform. Patch 2 and 3
> are the actually changes for bcm2835 support.
>
> These series has been tested on Raspberry Pi B with dd (direct I/O):
>
> sdhci-bcm2835
>
> 378 kB/s WRITE
> 10,6 MB/s READ
>
> sdhci-iproc (after applying patch series)
>
> 881 kB/s WRITE
> 10,8 MB/s READ
>
> Changes since RFC:
> * drop patch which tries to add quirks for bcm2835 in DT and define all
> quirks in driver instead to keep old DTs working with sdhci-iproc
> (suggestion by Stephen Warren)
> * define MMC caps in shdci-iproc platform data to make adding new
> platforms more easily (suggestion by Stephen Warren)
>
> [1] - https://lkml.org/lkml/2015/12/22/525
>
> Stefan Wahren (3):
> mmc: sdhci-iproc: define MMC caps in platform data
> mmc: sdhci-iproc: add bcm2835 support
> DT: sdhci-iproc: add bcm2835 compatible
>
> .../devicetree/bindings/mmc/brcm,sdhci-iproc.txt | 5 ++++-
> drivers/mmc/host/Kconfig | 6 +++---
> drivers/mmc/host/sdhci-iproc.c | 20 ++++++++++++++++++--
> 3 files changed, 25 insertions(+), 6 deletions(-)
>
> --
> 1.7.9.5
>
Thanks, applied for next!
Kind regards
Uffe
More information about the linux-rpi-kernel
mailing list