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References: <20190603091008.2382-1-narmstrong@baylibre.com> <20190603091008.2382-4-narmstrong@baylibre.com>
In-Reply-To: <20190603091008.2382-4-narmstrong@baylibre.com>
From:   Anand Moon <linux.amoon@gmail.com>
Date:   Mon, 3 Jun 2019 17:30:22 +0530
Message-ID: <CANAwSgT964PY6OMkS-hoqBf39Np99-tzfGbpXGdLtxF600eDtQ@mail.gmail.com>
Subject: Re: [PATCH v5 3/3] arm64: dts: meson: Add minimal support for Odroid-N2
To:     Neil Armstrong <narmstrong@baylibre.com>
Cc:     Kevin Hilman <khilman@baylibre.com>,
        Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
        linux-amlogic@lists.infradead.org,
        Linux Kernel <linux-kernel@vger.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
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Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Hi Niel,

On Mon, 3 Jun 2019 at 14:41, Neil Armstrong <narmstrong@baylibre.com> wrote:
>
> This patch adds basic support for :
> - Amlogic G12B, which is very similar to G12A
> - The HardKernel Odroid-N2 based on the S922X SoC
>
> The Amlogic G12B SoC is very similar with the G12A SoC, sharing
> most of the features and architecture, but with these differences :
> - The first CPU cluster only has 2xCortex-A53 instead of 4
> - G12B has a second cluster of 4xCortex-A73
> - Both cluster can achieve 2GHz instead of 1,8GHz for G12A
> - CPU Clock architecture is difference, thus needing a different
>   compatible to handle this slight difference
> - Supports a MIPI CSI input
> - Embeds a Mali-G52 instead of a Mali-G31, but integration is the same
>
> Actual support is done in the same way as for the GXM support, including
> the G12A dtsi and redefining the CPU clusters.
> Unlike GXM, the first cluster is different, thus needing to remove
> the last 2 cpu nodes of the first cluster.
>
> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> ---
>  arch/arm64/boot/dts/amlogic/Makefile          |   1 +
>  .../boot/dts/amlogic/meson-g12b-odroid-n2.dts | 289 ++++++++++++++++++
>  arch/arm64/boot/dts/amlogic/meson-g12b.dtsi   |  82 +++++
>  3 files changed, 372 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
>  create mode 100644 arch/arm64/boot/dts/amlogic/meson-g12b.dtsi
>
> diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
> index e129c03ced14..07b861fe5fa5 100644
> --- a/arch/arm64/boot/dts/amlogic/Makefile
> +++ b/arch/arm64/boot/dts/amlogic/Makefile
> @@ -3,6 +3,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-axg-s400.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-g12a-sei510.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-g12a-u200.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-g12a-x96-max.dtb
> +dtb-$(CONFIG_ARCH_MESON) += meson-g12b-odroid-n2.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-nanopi-k2.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-nexbox-a95x.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-odroidc2.dtb
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
> new file mode 100644
> index 000000000000..161d8f0ff4f3
> --- /dev/null
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
> @@ -0,0 +1,289 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2019 BayLibre, SAS
> + * Author: Neil Armstrong <narmstrong@baylibre.com>
> + */
> +
> +/dts-v1/;
> +
> +#include "meson-g12b.dtsi"
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/gpio/meson-g12a-gpio.h>
> +
> +/ {
> +       compatible = "hardkernel,odroid-n2", "amlogic,g12b";
> +       model = "Hardkernel ODROID-N2";
> +
> +       aliases {
> +               serial0 = &uart_AO;
> +               ethernet0 = &ethmac;
> +       };
> +
> +       chosen {
> +               stdout-path = "serial0:115200n8";
> +       };
> +
> +       memory@0 {
> +               device_type = "memory";
> +               reg = <0x0 0x0 0x0 0x40000000>;
> +       };
> +
> +       emmc_pwrseq: emmc-pwrseq {
> +               compatible = "mmc-pwrseq-emmc";
> +               reset-gpios = <&gpio BOOT_12 GPIO_ACTIVE_LOW>;
> +       };
> +
> +       leds {
> +               compatible = "gpio-leds";
> +
> +               blue {
> +                       label = "n2:blue";
> +                       gpios = <&gpio_ao GPIOAO_11 GPIO_ACTIVE_HIGH>;
> +                       linux,default-trigger = "heartbeat";
> +               };
> +       };
> +
> +       tflash_vdd: regulator-tflash_vdd {
> +               compatible = "regulator-fixed";
> +
> +               regulator-name = "TFLASH_VDD";
> +               regulator-min-microvolt = <3300000>;
> +               regulator-max-microvolt = <3300000>;
> +
> +               gpio = <&gpio_ao GPIOAO_8 GPIO_ACTIVE_HIGH>;
> +               enable-active-high;
> +       };
> +
> +       tf_io: gpio-regulator-tf_io {
> +               compatible = "regulator-gpio";
> +
> +               regulator-name = "TF_IO";
> +               regulator-min-microvolt = <1800000>;
> +               regulator-max-microvolt = <3300000>;
> +
> +               gpios = <&gpio_ao GPIOAO_9 GPIO_ACTIVE_HIGH>;
> +               gpios-states = <0>;
> +
> +               states = <3300000 0
> +                         1800000 1>;
> +       };
> +
> +       flash_1v8: regulator-flash_1v8 {
> +               compatible = "regulator-fixed";
> +               regulator-name = "FLASH_1V8";
> +               regulator-min-microvolt = <1800000>;
> +               regulator-max-microvolt = <1800000>;
> +               vin-supply = <&vcc_3v3>;
> +               regulator-always-on;
> +       };
> +
> +       main_12v: regulator-main_12v {
> +               compatible = "regulator-fixed";
> +               regulator-name = "12V";
> +               regulator-min-microvolt = <12000000>;
> +               regulator-max-microvolt = <12000000>;
> +               regulator-always-on;
> +       };
> +
> +       vcc_5v: regulator-vcc_5v {
> +               compatible = "regulator-fixed";
> +               regulator-name = "5V";
> +               regulator-min-microvolt = <5000000>;
> +               regulator-max-microvolt = <5000000>;
> +               regulator-always-on;

As per odroid-n2_rev0.4_20190307 schematic its missing.
                  vin-supply =  <&main_12v>;

With this please add my.
Tested-by: Anand Moon <linux.amoon@gmail.com>

Best Regards
-Anand
> +       };
> +
> +       vcc_1v8: regulator-vcc_1v8 {
> +               compatible = "regulator-fixed";
> +               regulator-name = "VCC_1V8";
> +               regulator-min-microvolt = <1800000>;
> +               regulator-max-microvolt = <1800000>;
> +               vin-supply = <&vcc_3v3>;
> +               regulator-always-on;
> +       };
> +
> +       vcc_3v3: regulator-vcc_3v3 {
> +               compatible = "regulator-fixed";
> +               regulator-name = "VCC_3V3";
> +               regulator-min-microvolt = <3300000>;
> +               regulator-max-microvolt = <3300000>;
> +               vin-supply = <&vddao_3v3>;
> +               regulator-always-on;
> +               /* FIXME: actually controlled by VDDCPU_B_EN */
> +       };
> +
> +       hub_5v: regulator-hub_5v {
> +               compatible = "regulator-fixed";
> +               regulator-name = "HUB_5V";
> +               regulator-min-microvolt = <5000000>;
> +               regulator-max-microvolt = <5000000>;
> +               vin-supply = <&vcc_5v>;
> +
> +               /* Connected to the Hub CHIPENABLE, LOW sets low power state */
> +               gpio = <&gpio GPIOH_5 GPIO_ACTIVE_HIGH>;
> +               enable-active-high;
> +       };
> +
> +       usb_pwr_en: regulator-usb_pwr_en {
> +               compatible = "regulator-fixed";
> +               regulator-name = "USB_PWR_EN";
> +               regulator-min-microvolt = <5000000>;
> +               regulator-max-microvolt = <5000000>;
> +               vin-supply = <&vcc_5v>;
> +
> +               /* Connected to the microUSB port power enable */
> +               gpio = <&gpio GPIOH_6 GPIO_ACTIVE_HIGH>;
> +               enable-active-high;
> +       };
> +
> +       vddao_1v8: regulator-vddao_1v8 {
> +               compatible = "regulator-fixed";
> +               regulator-name = "VDDAO_1V8";
> +               regulator-min-microvolt = <1800000>;
> +               regulator-max-microvolt = <1800000>;
> +               vin-supply = <&vddao_3v3>;
> +               regulator-always-on;
> +       };
> +
> +       vddao_3v3: regulator-vddao_3v3 {
> +               compatible = "regulator-fixed";
> +               regulator-name = "VDDAO_3V3";
> +               regulator-min-microvolt = <3300000>;
> +               regulator-max-microvolt = <3300000>;
> +               vin-supply = <&main_12v>;
> +               regulator-always-on;
> +       };
> +
> +       hdmi-connector {
> +               compatible = "hdmi-connector";
> +               type = "a";
> +
> +               port {
> +                       hdmi_connector_in: endpoint {
> +                               remote-endpoint = <&hdmi_tx_tmds_out>;
> +                       };
> +               };
> +       };
> +};
> +
> +&cec_AO {
> +       pinctrl-0 = <&cec_ao_a_h_pins>;
> +       pinctrl-names = "default";
> +       status = "disabled";
> +       hdmi-phandle = <&hdmi_tx>;
> +};
> +
> +&cecb_AO {
> +       pinctrl-0 = <&cec_ao_b_h_pins>;
> +       pinctrl-names = "default";
> +       status = "okay";
> +       hdmi-phandle = <&hdmi_tx>;
> +};
> +
> +&ext_mdio {
> +       external_phy: ethernet-phy@0 {
> +               /* Realtek RTL8211F (0x001cc916) */
> +               reg = <0>;
> +               max-speed = <1000>;
> +       };
> +};
> +
> +&ethmac {
> +       pinctrl-0 = <&eth_pins>, <&eth_rgmii_pins>;
> +       pinctrl-names = "default";
> +       status = "okay";
> +       phy-mode = "rgmii";
> +       phy-handle = <&external_phy>;
> +       amlogic,tx-delay-ns = <2>;
> +};
> +
> +&gpio {
> +       /*
> +        * WARNING: The USB Hub on the Odroid-N2 needs a reset signal
> +        * to be turned high in order to be detected by the USB Controller
> +        * This signal should be handled by a USB specific power sequence
> +        * in order to reset the Hub when USB bus is powered down.
> +        */
> +       usb-hub {
> +               gpio-hog;
> +               gpios = <GPIOH_4 GPIO_ACTIVE_HIGH>;
> +               output-high;
> +               line-name = "usb-hub-reset";
> +       };
> +};
> +
> +&hdmi_tx {
> +       status = "okay";
> +       pinctrl-0 = <&hdmitx_hpd_pins>, <&hdmitx_ddc_pins>;
> +       pinctrl-names = "default";
> +       hdmi-supply = <&vcc_5v>;
> +};
> +
> +&hdmi_tx_tmds_port {
> +       hdmi_tx_tmds_out: endpoint {
> +               remote-endpoint = <&hdmi_connector_in>;
> +       };
> +};
> +
> +&ir {
> +       status = "okay";
> +       pinctrl-0 = <&remote_input_ao_pins>;
> +       pinctrl-names = "default";
> +};
> +
> +/* SD card */
> +&sd_emmc_b {
> +       status = "okay";
> +       pinctrl-0 = <&sdcard_c_pins>;
> +       pinctrl-1 = <&sdcard_clk_gate_c_pins>;
> +       pinctrl-names = "default", "clk-gate";
> +
> +       bus-width = <4>;
> +       cap-sd-highspeed;
> +       max-frequency = <50000000>;
> +       disable-wp;
> +
> +       cd-gpios = <&gpio GPIOC_6 GPIO_ACTIVE_LOW>;
> +       vmmc-supply = <&tflash_vdd>;
> +       vqmmc-supply = <&tf_io>;
> +
> +};
> +
> +/* eMMC */
> +&sd_emmc_c {
> +       status = "okay";
> +       pinctrl-0 = <&emmc_pins>, <&emmc_ds_pins>;
> +       pinctrl-1 = <&emmc_clk_gate_pins>;
> +       pinctrl-names = "default", "clk-gate";
> +
> +       bus-width = <8>;
> +       cap-mmc-highspeed;
> +       mmc-ddr-1_8v;
> +       mmc-hs200-1_8v;
> +       max-frequency = <200000000>;
> +       disable-wp;
> +
> +       mmc-pwrseq = <&emmc_pwrseq>;
> +       vmmc-supply = <&vcc_3v3>;
> +       vqmmc-supply = <&flash_1v8>;
> +};
> +
> +&uart_AO {
> +       status = "okay";
> +       pinctrl-0 = <&uart_ao_a_pins>;
> +       pinctrl-names = "default";
> +};
> +
> +&usb {
> +       status = "okay";
> +       vbus-supply = <&usb_pwr_en>;
> +};
> +
> +&usb2_phy0 {
> +       phy-supply = <&vcc_5v>;
> +};
> +
> +&usb2_phy1 {
> +       /* Enable the hub which is connected to this port */
> +       phy-supply = <&hub_5v>;
> +};
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b.dtsi
> new file mode 100644
> index 000000000000..9e88e513b22d
> --- /dev/null
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12b.dtsi
> @@ -0,0 +1,82 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2019 BayLibre, SAS
> + * Author: Neil Armstrong <narmstrong@baylibre.com>
> + */
> +
> +#include "meson-g12a.dtsi"
> +
> +/ {
> +       compatible = "amlogic,g12b";
> +
> +       cpus {
> +               cpu-map {
> +                       cluster0 {
> +                               core0 {
> +                                       cpu = <&cpu0>;
> +                               };
> +
> +                               core1 {
> +                                       cpu = <&cpu1>;
> +                               };
> +                       };
> +
> +                       cluster1 {
> +                               core0 {
> +                                       cpu = <&cpu100>;
> +                               };
> +
> +                               core1 {
> +                                       cpu = <&cpu101>;
> +                               };
> +
> +                               core2 {
> +                                       cpu = <&cpu102>;
> +                               };
> +
> +                               core3 {
> +                                       cpu = <&cpu103>;
> +                               };
> +                       };
> +               };
> +
> +               /delete-node/ cpu@2;
> +               /delete-node/ cpu@3;
> +
> +               cpu100: cpu@100 {
> +                       device_type = "cpu";
> +                       compatible = "arm,cortex-a73";
> +                       reg = <0x0 0x100>;
> +                       enable-method = "psci";
> +                       next-level-cache = <&l2>;
> +               };
> +
> +               cpu101: cpu@101 {
> +                       device_type = "cpu";
> +                       compatible = "arm,cortex-a73";
> +                       reg = <0x0 0x101>;
> +                       enable-method = "psci";
> +                       next-level-cache = <&l2>;
> +               };
> +
> +               cpu102: cpu@102 {
> +                       device_type = "cpu";
> +                       compatible = "arm,cortex-a73";
> +                       reg = <0x0 0x102>;
> +                       enable-method = "psci";
> +                       next-level-cache = <&l2>;
> +               };
> +
> +               cpu103: cpu@103 {
> +                       device_type = "cpu";
> +                       compatible = "arm,cortex-a73";
> +                       reg = <0x0 0x103>;
> +                       enable-method = "psci";
> +                       next-level-cache = <&l2>;
> +               };
> +       };
> +};
> +
> +&clkc {
> +       compatible = "amlogic,g12b-clkc";
> +};
> --
> 2.21.0
>
>
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