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Date: Mon, 18 Dec 2017 18:52:50 +0530
From: PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>
To: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Cc: Ralf Baechle <ralf@...ux-mips.org>, linux-mips@...ux-mips.org,
open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 10/13] MIPS: mscc: add ocelot dtsi
Hi Alexandre,
On 8 December 2017 at 21:16, Alexandre Belloni
<alexandre.belloni@...e-electrons.com> wrote:
> Add a device tree include file for the Microsemi Ocelot SoC.
>
> Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
> ---
> arch/mips/boot/dts/Makefile | 1 +
> arch/mips/boot/dts/mscc/Makefile | 4 ++
> arch/mips/boot/dts/mscc/ocelot.dtsi | 115 ++++++++++++++++++++++++++++++++++++
> 3 files changed, 120 insertions(+)
> create mode 100644 arch/mips/boot/dts/mscc/Makefile
> create mode 100644 arch/mips/boot/dts/mscc/ocelot.dtsi
>
> diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile
> index e2c6f131c8eb..1e79cab8e269 100644
> --- a/arch/mips/boot/dts/Makefile
> +++ b/arch/mips/boot/dts/Makefile
> @@ -4,6 +4,7 @@ subdir-y += cavium-octeon
> subdir-y += img
> subdir-y += ingenic
> subdir-y += lantiq
> +subdir-y += mscc
> subdir-y += mti
> subdir-y += netlogic
> subdir-y += ni
> diff --git a/arch/mips/boot/dts/mscc/Makefile b/arch/mips/boot/dts/mscc/Makefile
> new file mode 100644
> index 000000000000..f0a155a74e02
> --- /dev/null
> +++ b/arch/mips/boot/dts/mscc/Makefile
> @@ -0,0 +1,4 @@
> +obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
> +
> +# Force kbuild to make empty built-in.o if necessary
> +obj- += dummy.o
> diff --git a/arch/mips/boot/dts/mscc/ocelot.dtsi b/arch/mips/boot/dts/mscc/ocelot.dtsi
> new file mode 100644
> index 000000000000..97f85431aa16
> --- /dev/null
> +++ b/arch/mips/boot/dts/mscc/ocelot.dtsi
> @@ -0,0 +1,115 @@
> +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
> +/* Copyright (c) 2017 Microsemi Corporation */
> +
> +/ {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "mscc,ocelot";
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + mips-hpt-frequency = <250000000>;
> +
> + cpu@0 {
> + compatible = "mscc,ocelot";
> + device_type = "cpu";
> + reg = <0>;
> + };
> + };
> +
> + aliases {
> + serial0 = &uart0;
> + };
> +
> + cpuintc: interrupt-controller@0 {
> + #address-cells = <0>;
> + #interrupt-cells = <1>;
> + interrupt-controller;
> + compatible = "mti,cpu-interrupt-controller";
> + };
> +
> + ahb_clk: ahb-clk {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <250000000>;
> + };
> +
> + ahb {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0 0x70000000 0x2000000>;
> +
> + interrupt-parent = <&intc>;
> +
> + cpu_ctrl: syscon@0 {
> + compatible = "mscc,ocelot-cpu-syscon", "syscon";
> + reg = <0x0 0x2c>;
> + };
> +
> + intc: interrupt-controller@70 {
> + compatible = "mscc,ocelot-icpu-intr";
> + reg = <0x70 0x70>;
> + #interrupt-cells = <1>;
> + interrupt-controller;
> + interrupt-parent = <&cpuintc>;
> + interrupts = <2>;
> + };
> +
> + uart0: serial@...000 {
> + pinctrl-0 = <&uart_pins>;
> + pinctrl-names = "default";
> + compatible = "ns16550a";
> + reg = <0x100000 0x20>;
> + interrupts = <6>;
> + clocks = <&ahb_clk>;
> + reg-io-width = <4>;
> + reg-shift = <2>;
> +
> + status = "disabled";
> + };
> +
> + uart2: serial@...800 {
> + pinctrl-0 = <&uart2_pins>;
> + pinctrl-names = "default";
> + compatible = "ns16550a";
> + reg = <0x100800 0x20>;
> + interrupts = <7>;
> + clocks = <&ahb_clk>;
> + reg-io-width = <4>;
> + reg-shift = <2>;
> +
> + status = "disabled";
> + };
> +
> + chip_regs: syscon@...0000 {
> + compatible = "mscc,ocelot-chip-regs", "simple-mfd", "syscon";
> + reg = <0x1070000 0x1c>;
> +
> + reset {
> + compatible = "mscc,ocelot-chip-reset";
> + mscc,cpucontrol = <&cpu_ctrl>;
> + };
> + };
> +
> + gpio: pinctrl@...0034 {
> + compatible = "mscc,ocelot-pinctrl";
> + reg = <0x1070034 0x28>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + gpio-ranges = <&gpio 0 0 22>;
> +
> + uart_pins: uart-pins {
> + pins = "GPIO_6", "GPIO_7";
> + function = "uart";
> + };
> +
> + uart2_pins: uart2-pins {
> + pins = "GPIO_12", "GPIO_13";
> + function = "uart2";
> + };
> + };
> + };
> +};
> --
> 2.15.1
>
>
Looks good to me.
Reviewed-by: PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>
Regards,
PrasannaKumar
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