Hi,
On 09/08/2021 12:43, Uwe Kleine-König wrote:
> This is a one bay NAS originally shipping Linux 2.6.24.4. It features
>
> - 128 MiB RAM
> - 2x eSATA (1x internal, 1x external)
> - 2x USB 2.0
> - 4 MiB NOR
> - battery powered RTC on i2c (PCF8563)
> - 1x GBit ethernet
>
> For now only the low-hanging fruits are added to the device tree, eSATA,
> USB, i2c and networking needs more work as there are no drivers
> available.
>
> Such a machine was offered to me by Richard Fröhning. Thanks!
Thanks for posting this !
>
> Signed-off-by: Uwe Kleine-König <uwe@xxxxxxxxxxxxxxxxx>
> ---
> .../devicetree/bindings/arm/oxnas.txt | 1 +
> arch/arm/boot/dts/Makefile | 1 +
> arch/arm/boot/dts/ox810se-zyxel-nsa210.dts | 156 ++++++++++++++++++
> 3 files changed, 158 insertions(+)
> create mode 100644 arch/arm/boot/dts/ox810se-zyxel-nsa210.dts
>
> diff --git a/Documentation/devicetree/bindings/arm/oxnas.txt b/Documentation/devicetree/bindings/arm/oxnas.txt
> index ac64e60f99f1..c1529d6c9666 100644
> --- a/Documentation/devicetree/bindings/arm/oxnas.txt
> +++ b/Documentation/devicetree/bindings/arm/oxnas.txt
> @@ -11,4 +11,5 @@ Boards with the OX820 SoC shall have the following properties:
>
> Board compatible values:
> - "wd,mbwe" (OX810SE)
> + - "zyxel,nsa210" (OX810SE)
> - "cloudengines,pogoplugv3" (OX820)
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 863347b6b65e..720b7d7e342a 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -913,6 +913,7 @@ dtb-$(CONFIG_ARCH_PXA) += \
> pxa300-raumfeld-speaker-s.dtb
> dtb-$(CONFIG_ARCH_OXNAS) += \
> ox810se-wd-mbwe.dtb \
> + ox810se-zyxel-nsa210.dtb \
> ox820-cloudengines-pogoplug-series-3.dtb
> dtb-$(CONFIG_ARCH_QCOM) += \
> qcom-apq8060-dragonboard.dtb \
> diff --git a/arch/arm/boot/dts/ox810se-zyxel-nsa210.dts b/arch/arm/boot/dts/ox810se-zyxel-nsa210.dts
> new file mode 100644
> index 000000000000..88d0e065cf99
> --- /dev/null
> +++ b/arch/arm/boot/dts/ox810se-zyxel-nsa210.dts
> @@ -0,0 +1,156 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Device tree file for Zyxel NSA-210
> + */
> +
> +/dts-v1/;
> +#include "ox810se.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
> +
> +/ {
> + model = "Zyxel NSA-210";
> +
> + compatible = "zyxel,nsa210", "oxsemi,ox810se";
> +
> + chosen {
> + bootargs = "console=ttyS2,115200n8";
> + };
> +
> + memory {
> + reg = <0x48000000 0x8000000>;
> + };
> +
> + aliases {
> + serial2 = &uart2;
> + };
> +
> + flash@41000000 {
> + compatible = "cfi-flash";
> + reg = <0x41000000 0x00400000>;
> + bank-width = <1>;
> +
> + partitions {
> + compatible = "fixed-partitions";
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + partitions@0 {
> + label = "uboot";
> + reg = <0x00000000 0x00020000>;
> + };
> +
> + partitions@1 {
> + label = "kernel";
> + reg = <0x00020000 0x001c0000>;
> + };
> +
> + partitions@2 {
> + label = "initrd";
> + reg = <0x001e0000 0x001a0000>;
> + };
> +
> + partitions@3 {
> + label = "etc";
> + reg = <0x00380000 0x00070000>;
> + };
> +
> + /* 448k gap */
> +
> + partitions@4 {
> + label = "env1";
> + reg = <0x003fc000 0x00002000>;
> + };
> +
> + partitions@5 {
> + label = "env2";
> + reg = <0x003fe000 0x00002000>;
> + };
> + };
> + };
> +
> + keys {
> + compatible = "gpio-keys";
> +
> + reset {
> + label = "Reset";
> + gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
> + };
> +
> + power {
> + label = "Power";
> + gpios = <&gpio0 4 GPIO_ACTIVE_LOW>;
> + };
> +
> + sync {
> + label = "Copy/Sync";
> + gpio = <&gpio0 10 GPIO_ACTIVE_LOW>;
> + };
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> +
> + /*
> + * The vendor U-Boot enables a PWM to make this LED blink during boot.
> + * This must be disabled to be able to drive the LED using the
> + * GPIO as defined here by unsetting bit 9 in the
> + * SYS_CTRL_GPIO_PWMSEL_CTRL_0 register.
> + * E.g. do before starting Linux: mw 0x4500009c 0
> + */
> + led1 {
> + label = "nsa210:green:sys";
> + gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
> + };
In order to support this usecase, the oxnas pinctrl driver could be augmented to handle this PWMSEL mux.
> +
> + led2 {
> + label = "nsa210:red:hdd";
> + gpios = <&gpio0 27 GPIO_ACTIVE_HIGH>;
> + };
> +
> + led3 {
> + label = "nsa210:green:hdd";
> + gpios = <&gpio0 22 GPIO_ACTIVE_HIGH>;
> + };
> +
> + led4 {
> + label = "nsa210:red:usb";
> + gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>;
> + };
> +
> + led5 {
> + label = "nsa210:green:usb";
> + gpios = <&gpio0 31 GPIO_ACTIVE_HIGH>;
> + };
> +
> + led6 {
> + label = "nsa210:red:esata";
> + gpios = <&gpio0 28 GPIO_ACTIVE_HIGH>;
> + };
> +
> + led7 {
> + label = "nsa210:green:esata";
> + gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
> + };
> +
> + led8 {
> + label = "nsa210:red:copy";
> + gpios = <&gpio0 24 GPIO_ACTIVE_HIGH>;
> + };
> +
> + led9 {
> + label = "nsa210:green:copy";
> + gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
> + };
> + };
> +};
> +
> +&uart2 {
> + /*
> + * To make this device work as expected bit 2 of register
> + * SYS_CTRL_UART_CTRL must be set. Otherwise the interrupt doesn't
> + * trigger, so console messages make it through, but userspace cannot
> + * make use of it.
> + * E.g. do before starting Linux: mw 0x45000094 4
> + */
> + status = "okay";
> +};
>
This one should be handled by adding an oxnas ns16550a variant with access to the &sys syscon to setup
the UART.
Neil
