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Message-Id: <1574600994.3.2@crapouillou.net>
Date: Sun, 24 Nov 2019 14:09:54 +0100
From: Paul Cercueil <paul@...pouillou.net>
To: Zhou Yanjie <zhouyanjie@...o.com>
Cc: linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, robh+dt@...nel.org,
paul.burton@...s.com, paulburton@...nel.org, jhogan@...nel.org,
mripard@...nel.org, shawnguo@...nel.org, mark.rutland@....com,
syq@...ian.org, ralf@...ux-mips.org, heiko@...ech.de,
icenowy@...c.io, laurent.pinchart@...asonboard.com,
krzk@...nel.org, geert+renesas@...der.be,
prasannatsmkumar@...il.com, sernia.zhou@...mail.com,
zhenwenjin@...il.com, 772753199@...com
Subject: Re: [PATCH v2 1/4] MIPS: Ingenic: initial X1000 support.
Hi Zhou,
Le sam., nov. 23, 2019 at 10:32, Zhou Yanjie <zhouyanjie@...o.com> a
écrit :
> Support the Ingenic X1000 SoC using the code under arch/mips/jz4740.
> This is left unselectable in Kconfig until a X1000 based board is
> added in a later commit.
>
> Signed-off-by: Zhou Yanjie <zhouyanjie@...o.com>
> ---
>
> Notes:
> v1->v2:
> Rebase on top of mips-next, use ingenic-timer driver
> for system timer and clocksource.
>
> arch/mips/boot/dts/ingenic/x1000.dtsi | 183
> ++++++++++++++++++++++++++++++++++
> arch/mips/jz4740/Kconfig | 6 ++
> 2 files changed, 189 insertions(+)
> create mode 100644 arch/mips/boot/dts/ingenic/x1000.dtsi
>
> diff --git a/arch/mips/boot/dts/ingenic/x1000.dtsi
> b/arch/mips/boot/dts/ingenic/x1000.dtsi
> new file mode 100644
> index 00000000..02a9b2a
> --- /dev/null
> +++ b/arch/mips/boot/dts/ingenic/x1000.dtsi
> @@ -0,0 +1,183 @@
> +// SPDX-License-Identifier: GPL-2.0
> +#include <dt-bindings/clock/x1000-cgu.h>
> +
> +/ {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "ingenic,x1000", "ingenic,x1000e";
> +
> + cpuintc: interrupt-controller {
> + #address-cells = <0>;
> + #interrupt-cells = <1>;
> + interrupt-controller;
> + compatible = "mti,cpu-interrupt-controller";
> + };
> +
> + intc: interrupt-controller@...01000 {
> + compatible = "ingenic,x1000-intc", "ingenic,jz4780-intc";
> + reg = <0x10001000 0x50>;
> +
> + interrupt-controller;
> + #interrupt-cells = <1>;
> +
> + interrupt-parent = <&cpuintc>;
> + interrupts = <2>;
> + };
> +
> + exclk: ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + };
> +
> + rtclk: rtc {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <32768>;
> + };
> +
> + cgu: x1000-cgu@...00000 {
> + compatible = "ingenic,x1000-cgu";
> + reg = <0x10000000 0x100>;
> +
> + #clock-cells = <1>;
> +
> + clocks = <&exclk>, <&rtclk>;
> + clock-names = "ext", "rtc";
> + };
> +
> + apb {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <>;
You can drop the 'apb' node and list the children in the top node
directly. That's what we do in the devicetree for the other Ingenic
SoCs.
Cheers,
-Paul
> +
> + tcu: timer@...02000 {
> + compatible = "ingenic,x1000-tcu",
> + "ingenic,jz4770-tcu",
> + "simple-mfd";
> + reg = <0x10002000 0x1000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0x0 0x10002000 0x1000>;
> +
> + #clock-cells = <1>;
> +
> + clocks = <&cgu X1000_CLK_RTCLK
> + &cgu X1000_CLK_EXCLK
> + &cgu X1000_CLK_PCLK>;
> + clock-names = "rtc", "ext", "pclk";
> +
> + interrupt-controller;
> + #interrupt-cells = <1>;
> +
> + interrupt-parent = <&intc>;
> + interrupts = <27 26 25>;
> + };
> +
> + uart0: serial@...30000 {
> + compatible = "ingenic,x1000-uart";
> + reg = <0x10030000 0x100>;
> +
> + interrupt-parent = <&intc>;
> + interrupts = <51>;
> +
> + clocks = <&exclk>, <&cgu X1000_CLK_UART0>;
> + clock-names = "baud", "module";
> +
> + status = "disabled";
> + };
> +
> + uart1: serial@...31000 {
> + compatible = "ingenic,x1000-uart";
> + reg = <0x10031000 0x100>;
> +
> + interrupt-parent = <&intc>;
> + interrupts = <50>;
> +
> + clocks = <&exclk>, <&cgu X1000_CLK_UART1>;
> + clock-names = "baud", "module";
> +
> + status = "disabled";
> + };
> +
> + uart2: serial@...32000 {
> + compatible = "ingenic,x1000-uart";
> + reg = <0x10032000 0x100>;
> +
> + interrupt-parent = <&intc>;
> + interrupts = <49>;
> +
> + clocks = <&exclk>, <&cgu X1000_CLK_UART2>;
> + clock-names = "baud", "module";
> +
> + status = "disabled";
> + };
> +
> + pinctrl: pin-controller@...10000 {
> + compatible = "ingenic,x1000-pinctrl";
> + reg = <0x10010000 0x800>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + gpa: gpio@0 {
> + compatible = "ingenic,x1000-gpio";
> + reg = <0>;
> +
> + gpio-controller;
> + gpio-ranges = <&pinctrl 0 0 32>;
> + #gpio-cells = <2>;
> +
> + interrupt-controller;
> + #interrupt-cells = <2>;
> +
> + interrupt-parent = <&intc>;
> + interrupts = <17>;
> + };
> +
> + gpb: gpio@1 {
> + compatible = "ingenic,x1000-gpio";
> + reg = <1>;
> +
> + gpio-controller;
> + gpio-ranges = <&pinctrl 0 32 32>;
> + #gpio-cells = <2>;
> +
> + interrupt-controller;
> + #interrupt-cells = <2>;
> +
> + interrupt-parent = <&intc>;
> + interrupts = <16>;
> + };
> +
> + gpc: gpio@2 {
> + compatible = "ingenic,x1000-gpio";
> + reg = <2>;
> +
> + gpio-controller;
> + gpio-ranges = <&pinctrl 0 64 32>;
> + #gpio-cells = <2>;
> +
> + interrupt-controller;
> + #interrupt-cells = <2>;
> +
> + interrupt-parent = <&intc>;
> + interrupts = <15>;
> + };
> +
> + gpd: gpio@3 {
> + compatible = "ingenic,x1000-gpio";
> + reg = <3>;
> +
> + gpio-controller;
> + gpio-ranges = <&pinctrl 0 96 32>;
> + #gpio-cells = <2>;
> +
> + interrupt-controller;
> + #interrupt-cells = <2>;
> +
> + interrupt-parent = <&intc>;
> + interrupts = <14>;
> + };
> + };
> + };
> +};
> diff --git a/arch/mips/jz4740/Kconfig b/arch/mips/jz4740/Kconfig
> index 4dd0c44..6b96844 100644
> --- a/arch/mips/jz4740/Kconfig
> +++ b/arch/mips/jz4740/Kconfig
> @@ -33,3 +33,9 @@ config MACH_JZ4780
> select MIPS_CPU_SCACHE
> select SYS_HAS_CPU_MIPS32_R2
> select SYS_SUPPORTS_HIGHMEM
> +
> +config MACH_X1000
> + bool
> + select MIPS_CPU_SCACHE
> + select SYS_HAS_CPU_MIPS32_R2
> + select SYS_SUPPORTS_HIGHMEM
> --
> 2.7.4
>
>
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