[U-Boot] [PATCH 5/7] Tegra30: Cardhu: Add DT files

[Tom Warren]

Lucas,

On Tue, Oct 2, 2012 at 5:07 PM, Lucas Stach <dev at lynxeye.de> wrote:
> Am Dienstag, den 02.10.2012, 15:45 -0700 schrieb Tom Warren:
>> These are stripped down for bringup, They'll be filled out later
>> to match-up with the kernel DT contents, and/or as devices are
>> brought up (mmc, usb, spi, etc.).
>>
>> Signed-off-by: Tom Warren <twarren at nvidia.com>
>> ---
>>  arch/arm/dts/tegra30.dtsi           |   30 ++++++++++++++++++++++++++++++
>>  board/nvidia/dts/tegra30-cardhu.dts |   35 +++++++++++++++++++++++++++++++++++
>>  2 files changed, 65 insertions(+), 0 deletions(-)
>>  create mode 100644 arch/arm/dts/tegra30.dtsi
>>  create mode 100644 board/nvidia/dts/tegra30-cardhu.dts
>>
>> diff --git a/arch/arm/dts/tegra30.dtsi b/arch/arm/dts/tegra30.dtsi
>> new file mode 100644
>> index 0000000..122c134
>> --- /dev/null
>> +++ b/arch/arm/dts/tegra30.dtsi
>> @@ -0,0 +1,30 @@
>> +/include/ "skeleton.dtsi"
>> +
>> +/ {
>> +     model = "NVIDIA Tegra30";
>> +     compatible = "nvidia,tegra30";
>> +
>> +     clocks {
>> +             #address-cells = <1>;
>> +             #size-cells = <0>;
>> +
>> +             osc: clock {
>> +                     compatible = "fixed-clock";
>> +                     #clock-cells = <0>;
>> +             };
>> +     };
>> +
>> +     gpio: gpio at 6000d000 {
>> +             compatible = "nvidia,tegra30-gpio", "nvidia,tegra20-gpio";
>> +             reg = <0x6000d000 0x1000>;
>> +             #gpio-cells = <2>;
>> +             gpio-controller;
>> +     };
>> +
>> +     serial at 70006000 {
>> +             compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart";
>> +             reg = <0x70006000 0x40>;
>> +             reg-shift = <2>;
>> +             status = "disabled";
>> +     };
>> +};
>> diff --git a/board/nvidia/dts/tegra30-cardhu.dts b/board/nvidia/dts/tegra30-cardhu.dts
>> new file mode 100644
>> index 0000000..68563e8
>> --- /dev/null
>> +++ b/board/nvidia/dts/tegra30-cardhu.dts
>> @@ -0,0 +1,35 @@
>> +/dts-v1/;
>> +
>> +/memreserve/ 0x1c000000 0x04000000;
>> +/include/ ARCH_CPU_DTS
>> +
>> +/ {
>> +     model = "NVIDIA Cardhu";
>> +     compatible = "nvidia,cardhu", "nvidia,tegra30";
>> +
>> +     aliases {
>> +     };
>> +
>> +        memory {
>> +                device_type = "memory";
>> +                reg = <0x80000000 0xc0000000>;
>> +        };
>> +
>> +     clocks {
>> +             clk_32k: clk_32k {
>> +                     clock_frequency = <32000>;
>> +             };
>> +             osc {
>> +                     clock-frequency = <12000000>;
>> +             };
>> +     };
>> +
>> +     clock at 60006000 {
>> +             clocks = <&clk_32k &osc>;
>> +     };
> Is this clock thing really needed? I don't think we are doing anything
> with those DT entries.

During bringup, I tried stripping down our internal DT files for
Cardhu to the absolute minimum that'd still boot.
AFAIR, clock entries were essential. Regardless, as periphs/drivers
are brought up in future days, this'll all begin to grow.

Tom

>
>> +
>> +     serial at 70006000 {
>> +             status = "ok";
>> +             clock-frequency = < 216000000 >;
>> +     };
>> +};
>
>