Re: [PATCH] ARM64: tegra: Add support for Google Pixel C

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Hi,

On Wed, Jan 06, 2016 at 09:40:22AM +0000, Jon Hunter wrote:
> Add initial device-tree support for Google Pixel C (a.k.a. Smaug) based
> upon Tegra210 SoC with 3 GiB of LPDDR4 RAM.
> 
> Signed-off-by: Jon Hunter <jonathanh@xxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/nvidia/Makefile           |  1 +
>  arch/arm64/boot/dts/nvidia/tegra210-smaug.dts | 42 +++++++++++++++++++++++++++
>  2 files changed, 43 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
> 
> diff --git a/arch/arm64/boot/dts/nvidia/Makefile b/arch/arm64/boot/dts/nvidia/Makefile
> index a7e865da1005..0f7cdf3e05c1 100644
> --- a/arch/arm64/boot/dts/nvidia/Makefile
> +++ b/arch/arm64/boot/dts/nvidia/Makefile
> @@ -2,6 +2,7 @@ dtb-$(CONFIG_ARCH_TEGRA_132_SOC) += tegra132-norrin.dtb
>  dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p2371-0000.dtb
>  dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p2371-2180.dtb
>  dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p2571.dtb
> +dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-smaug.dtb
>  
>  always		:= $(dtb-y)
>  clean-files	:= *.dtb
> diff --git a/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
> new file mode 100644
> index 000000000000..a7474f5fcbcc
> --- /dev/null
> +++ b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
> @@ -0,0 +1,42 @@
> +/dts-v1/;
> +
> +#include "tegra210.dtsi"
> +
> +/ {
> +	model = "Google Pixel C";
> +	compatible = "google,smaug-rev8", "google,smaug-rev7",
> +		     "google,smaug-rev6", "google,smaug-rev5",
> +		     "google,smaug-rev4", "google,smaug-rev3",
> +		     "google,smaug-rev1", "google,smaug", "nvidia,tegra210";

This looks a little funky. Is each revision a strict superset of the
previous version?

> +
> +	chosen {
> +		bootargs = "console=ttyS0,115200n8 earlycon=uart8250,mmio32,0x70006000";
> +	};

Use stdout-path.

Otherwise this looks ok.

Thanks,
Mark.
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