[U-Boot] [PATCH 0/3] Rpi: Add support for second sd host controller

[Jaehoon Chung]

On 01/16/2018 10:46 PM, Alexander Graf wrote:
> The Raspberry Pi (bcm283x SoC) family contains 2 IP blocks to drive SD
> peripherals: A pretty standard SDHCI one called iProc and a home grown
> one called "sdhost".
> 
> When driving U-Boot by the same device tree that we use for Linux, we
> end up in situations where only the "sdhost" device is available for use.
> In those situations, current U-Boot can simply not drive the SD card,
> because the device tree disables the SDHCI device.
> 
> This patch set also adds support for pinmuxing the SD devices properly
> to their respective pins. This is necessary because the RPi firmware
> doesn't mux the SD pins according to the device tree but instead expects
> the payload (usually Linux, U-Boot for us) to do that.
> 
> With this patch set, I can successfully use U-Boot on a RPi3 Compute
> Module with CONFIG_OF_BOARD=y and a device tree generated by the RPi
> firmware (plus a few overlays in config.txt for vc4, serial, etc).

Before reviewing, Cold you fix the checkpatch error and warning?
There are too many error and warning..

Best Regards,
Jaehoon Chung

> 
> Alexander Graf (3):
>   bcm2835_gpio: Add support for pinmux
>   mmc: Add bcm2835 sdhost controller
>   mmc: bcm2835_sdhci: Add pinmux support
> 
>  arch/arm/mach-bcm283x/include/mach/gpio.h |    1 +
>  drivers/gpio/bcm2835_gpio.c               |   40 ++
>  drivers/mmc/Kconfig                       |   14 +
>  drivers/mmc/Makefile                      |    1 +
>  drivers/mmc/bcm2835_sdhci.c               |   11 +
>  drivers/mmc/bcm2835_sdhost.c              | 1000 +++++++++++++++++++++++++++++
>  6 files changed, 1067 insertions(+)
>  create mode 100644 drivers/mmc/bcm2835_sdhost.c
>