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Message-ID: <CAEgOgz4sxg6khQwKtj5owPrm_Jsz+i-bV9-u7Wh9U_YBWvNtmw@mail.gmail.com>
Date: Thu, 19 Dec 2013 09:41:23 +1000
From: Peter Crosthwaite <peter.crosthwaite@...inx.com>
To: Jonas Jensen <jonas.jensen@...il.com>
Cc: "linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
devicetree@...r.kernel.org, "arm@...nel.org" <arm@...nel.org>,
Russell King - ARM Linux <linux@....linux.org.uk>,
Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
Soren Brinkmann <soren.brinkmann@...inx.com>,
linux@...ck-us.net
Subject: Re: [PATCH v6 2/2] ARM: mach-moxart: add MOXA ART SoC device tree files
On Wed, Dec 18, 2013 at 10:58 PM, Jonas Jensen <jonas.jensen@...il.com> wrote:
> Add a generic (dtsi) include file for MOXA ART SoCs.
>
> Also add a file for UC-7112-LX.
>
> Signed-off-by: Jonas Jensen <jonas.jensen@...il.com>
> ---
> Documentation/devicetree/bindings/arm/moxart.txt | 12 ++
> arch/arm/boot/dts/Makefile | 1 +
> arch/arm/boot/dts/moxart-uc7112lx.dts | 109 ++++++++++++++++
> arch/arm/boot/dts/moxart.dtsi | 154 +++++++++++++++++++++++
> 4 files changed, 276 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/arm/moxart.txt
> create mode 100644 arch/arm/boot/dts/moxart-uc7112lx.dts
> create mode 100644 arch/arm/boot/dts/moxart.dtsi
>
> diff --git a/Documentation/devicetree/bindings/arm/moxart.txt b/Documentation/devicetree/bindings/arm/moxart.txt
> new file mode 100644
> index 0000000..11087ed
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/moxart.txt
> @@ -0,0 +1,12 @@
> +MOXA ART device tree bindings
> +
> +Boards with the MOXA ART SoC shall have the following properties:
> +
> +Required root node property:
> +
> +compatible = "moxa,moxart";
> +
> +Boards:
> +
> +- UC-7112-LX: embedded computer
> + compatible = "moxa,moxart-uc-7112-lx", "moxa,moxart"
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 16f0c5c..b95a9c6 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -110,6 +110,7 @@ dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-cloudbox.dtb \
> kirkwood-ts219-6281.dtb \
> kirkwood-ts219-6282.dtb
> dtb-$(CONFIG_ARCH_MARCO) += marco-evb.dtb
> +dtb-$(CONFIG_ARCH_MOXART) += moxart-uc7112lx.dtb
> dtb-$(CONFIG_ARCH_MSM) += qcom-msm8660-surf.dtb \
> qcom-msm8960-cdp.dtb
> dtb-$(CONFIG_ARCH_MVEBU) += armada-370-db.dtb \
> diff --git a/arch/arm/boot/dts/moxart-uc7112lx.dts b/arch/arm/boot/dts/moxart-uc7112lx.dts
> new file mode 100644
> index 0000000..90749d5
> --- /dev/null
> +++ b/arch/arm/boot/dts/moxart-uc7112lx.dts
> @@ -0,0 +1,109 @@
> +/* moxart-uc7112lx.dts - Device Tree file for MOXA UC-7112-LX
> + *
> + * Copyright (C) 2013 Jonas Jensen <jonas.jensen@...il.com>
> + *
> + * Licensed under GPLv2 or later.
> + */
> +
> +/dts-v1/;
> +/include/ "moxart.dtsi"
> +
> +/ {
> + model = "MOXA UC-7112-LX";
> + compatible = "moxa,moxart-uc-7112-lx", "moxa,moxart";
> +
> + memory {
> + device_type = "memory";
> + reg = <0x0 0x2000000>;
> + };
> +
> + flash@...00000,0 {
> + compatible = "numonyx,js28f128", "cfi-flash";
> + reg = <0x80000000 0x1000000>;
> + bank-width = <2>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + partition@0 {
> + label = "bootloader";
> + reg = <0x0 0x40000>;
> + };
> + partition@...00 {
> + label = "linux kernel";
> + reg = <0x40000 0x1C0000>;
> + };
> + partition@...000 {
> + label = "root filesystem";
> + reg = <0x200000 0x800000>;
> + };
> + partition@...000 {
> + label = "user filesystem";
> + reg = <0xa00000 0x600000>;
> + };
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> + user-led {
> + label = "ready-led";
> + gpios = <&gpio 27 0x1>;
> + default-state = "on";
> + linux,default-trigger = "default-on";
> + };
> + };
> +
> + gpio_keys_polled {
> + compatible = "gpio-keys-polled";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + poll-interval = <500>;
> + button@25 {
> + label = "GPIO Reset";
> + linux,code = <116>;
> + gpios = <&gpio 25 1>;
> + };
> + };
> +
> + chosen {
> + bootargs = "console=ttyS0,115200n8 earlyprintk root=/dev/mmcblk0p1 rw rootwait";
> + };
> +};
> +
> +&clk_pll {
> + clocks = <&ref12>;
> +};
> +
> +&sdhci {
> + status = "okay";
> +};
> +
> +&mdio0 {
> + status = "okay";
> +
> + ethphy0: ethernet-phy@1 {
> + device_type = "ethernet-phy";
> + compatible = "moxa,moxart-rtl8201cp", "ethernet-phy-ieee802.3-c22";
> + reg = <1>;
> + };
> +};
> +
> +&mdio1 {
> + status = "okay";
> +
> + ethphy1: ethernet-phy@1 {
> + device_type = "ethernet-phy";
> + compatible = "moxa,moxart-rtl8201cp", "ethernet-phy-ieee802.3-c22";
> + reg = <1>;
> + };
You phy stuff looks good to me, thanks for the changes.
> +};
> +
> +&mac0 {
> + status = "okay";
> +};
> +
> +&mac1 {
> + status = "okay";
> +};
> +
> +&uart0 {
> + status = "okay";
> +};
> diff --git a/arch/arm/boot/dts/moxart.dtsi b/arch/arm/boot/dts/moxart.dtsi
> new file mode 100644
> index 0000000..da1d8ef
> --- /dev/null
> +++ b/arch/arm/boot/dts/moxart.dtsi
> @@ -0,0 +1,154 @@
> +/* moxart.dtsi - Device Tree Include file for MOXA ART family SoC
> + *
> + * Copyright (C) 2013 Jonas Jensen <jonas.jensen@...il.com>
> + *
> + * Licensed under GPLv2 or later.
> + */
> +
> +/include/ "skeleton.dtsi"
> +
> +/ {
> + compatible = "moxa,moxart";
> + model = "MOXART";
> + interrupt-parent = <&intc>;
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + cpu@0 {
> + device_type = "cpu";
> + compatible = "faraday,fa526";
> + reg = <0>;
> + };
> + };
> +
> + clocks {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + ref12: ref12M {
> + compatible = "fixed-clock";
Is the correct split to perhaps have the fixed-clock node in dtsi as
you have here but ...
> + #clock-cells = <0>;
> + clock-frequency = <12000000>;
The board is responsible for the frequency?
I guess in this schema,
1. the "fixed-clock" node corresponds to the existence of clock input
pins on the SoC level - hence the node is DTSI.
2. setting the clock-frequency corresponds to populatation of those
input pins with a soldered crystal - hence done in DTS
Then again, I'm not entirely sure, and I think I might be splitting
hairs here, So.
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@...inx.com>
> + };
> + };
> +
> + soc {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + reg = <0x90000000 0x10000000>;
> + ranges;
> +
> + intc: interrupt-controller@...00000 {
> + compatible = "moxa,moxart-ic";
> + reg = <0x98800000 0x38>;
> + interrupt-controller;
> + #interrupt-cells = <2>;
> + interrupt-mask = <0x00080000>;
> + };
> +
> + clk_pll: clk_pll@...00000 {
> + compatible = "moxa,moxart-pll-clock";
> + #clock-cells = <0>;
> + reg = <0x98100000 0x34>;
> + };
> +
> + clk_apb: clk_apb@...00000 {
> + compatible = "moxa,moxart-apb-clock";
> + #clock-cells = <0>;
> + reg = <0x98100000 0x34>;
> + clocks = <&clk_pll>;
> + };
> +
> + timer: timer@...00000 {
> + compatible = "moxa,moxart-timer";
> + reg = <0x98400000 0x42>;
> + interrupts = <19 1>;
> + clocks = <&clk_apb>;
> + };
> +
> + gpio: gpio@...00000 {
> + gpio-controller;
> + #gpio-cells = <2>;
> + compatible = "moxa,moxart-gpio";
> + reg = <0x98700000 0xC>;
> + };
> +
> + rtc: rtc {
> + compatible = "moxa,moxart-rtc";
> + gpio-rtc-sclk = <&gpio 5 0>;
> + gpio-rtc-data = <&gpio 6 0>;
> + gpio-rtc-reset = <&gpio 7 0>;
> + };
> +
> + dma: dma@...00000 {
> + compatible = "moxa,moxart-dma";
> + reg = <0x90500080 0x40>;
> + interrupts = <24 0>;
> + #dma-cells = <1>;
> + };
> +
> + watchdog: watchdog@...00000 {
> + compatible = "moxa,moxart-watchdog";
> + reg = <0x98500000 0x10>;
> + clocks = <&clk_apb>;
> + };
> +
> + sdhci: sdhci@...00000 {
> + compatible = "moxa,moxart-sdhci";
> + reg = <0x98e00000 0x5C>;
> + interrupts = <5 0>;
> + clocks = <&clk_apb>;
> + dmas = <&dma 5>,
> + <&dma 5>;
> + dma-names = "tx", "rx";
> + status = "disabled";
> + };
> +
> + mdio0: mdio@...00090 {
> + compatible = "moxa,moxart-mdio";
> + reg = <0x90900090 0x8>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + status = "disabled";
> + };
> +
> + mdio1: mdio@...00090 {
> + compatible = "moxa,moxart-mdio";
> + reg = <0x92000090 0x8>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + status = "disabled";
> + };
> +
> + mac0: mac@...00000 {
> + compatible = "moxa,moxart-mac";
> + reg = <0x90900000 0x90>;
> + interrupts = <25 0>;
> + phy-handle = <ðphy0>;
> + phy-mode = "mii";
> + status = "disabled";
> + };
> +
> + mac1: mac@...00000 {
> + compatible = "moxa,moxart-mac";
> + reg = <0x92000000 0x90>;
> + interrupts = <27 0>;
> + phy-handle = <ðphy1>;
> + phy-mode = "mii";
> + status = "disabled";
> + };
> +
> + uart0: uart@...00000 {
> + compatible = "ns16550a";
> + reg = <0x98200000 0x20>;
> + interrupts = <31 8>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clock-frequency = <14745600>;
> + status = "disabled";
> + };
> + };
> +};
> --
> 1.8.2.1
>
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