Re: [PATCH 2/2] bmips: add device tree example for BCM6358

From: Rob Herring
Date: Wed Jan 20 2016 - 11:59:23 EST


On Sun, Jan 17, 2016 at 12:28:21PM +0100, Álvaro Fernández Rojas wrote:
> This adds a device tree example for SFR Neufbox4 (Sercomm version), which
> also serves as a real example for brcm,bcm6358-leds.
>
> Signed-off-by: Álvaro Fernández Rojas <noltari@xxxxxxxxx>

[...]

> diff --git a/arch/mips/boot/dts/brcm/bcm6358.dtsi
b/arch/mips/boot/dts/brcm/bcm6358.dtsi
> new file mode 100644
> index 0000000..b2d11da
> --- /dev/null
> +++ b/arch/mips/boot/dts/brcm/bcm6358.dtsi
> @@ -0,0 +1,111 @@
> +/ {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "brcm,bcm6358";
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + mips-hpt-frequency = <150000000>;
> +
> + cpu@0 {
> + compatible = "brcm,bmips4350";
> + device_type = "cpu";
> + reg = <0>;
> + };
> +
> + cpu@1 {
> + compatible = "brcm,bmips4350";
> + device_type = "cpu";
> + reg = <1>;
> + };
> + };
> +
> + clocks {
> + periph_clk: periph_clk {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <50000000>;
> + };
> + };
> +
> + aliases {
> + leds0 = &leds0;

Why do we need alias for LEDs?

> + uart0 = &uart0;
> + uart1 = &uart1;
> + };

[...]

> diff --git a/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts b/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts
> new file mode 100644
> index 0000000..ca95084
> --- /dev/null
> +++ b/arch/mips/boot/dts/brcm/bcm96358nb4ser.dts
> @@ -0,0 +1,47 @@
> +/dts-v1/;
> +
> +/include/ "bcm6358.dtsi"
> +
> +/ {
> + compatible = "sfr,nb4-ser", "brcm,bcm6358";
> + model = "SFR Neufbox 4 (Sercomm)";
> +
> + memory@0 {
> + device_type = "memory";
> + reg = <0x00000000 0x02000000>;
> + };
> +
> + chosen {
> + bootargs = "console=ttyS0,115200";
> + stdout-path = &uart0;

You shouldn't need both here. Just stdout-path.

Rob