arm64: dts: meson-sm1: add support for Hardkernel ODROID-C4

Add the board support for the Hardkernel Odroid-C4 single board computer.

The Odroid-C4 is the Odroid-C2 successor with same form factor, but using
a modern Amlogic S905X3 (SM1) SoC and 4x USB3 ports.

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200506080702.6645-3-narmstrong@baylibre.com

diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
index eef0045..5daab72 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/Makefile
+++ b/arch/arm64/boot/dts/amlogic/Makefile
@@ -40,4 +40,5 @@ dtb-$(CONFIG_ARCH_MESON) += meson-gxm-s912-libretech-pc.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-gxm-vega-s96.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-sm1-sei610.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-sm1-khadas-vim3l.dtb
+dtb-$(CONFIG_ARCH_MESON) += meson-sm1-odroid-c4.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-a1-ad401.dtb

diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-c4.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-c4.dts
new file mode 100644 (file)
index 0000000..00d90b3
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-c4.dts
@@ -0,0 +1,402 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2020 Dongjin Kim <tobetter@gmail.com>
+ */
+
+/dts-v1/;
+
+#include "meson-sm1.dtsi"
+#include <dt-bindings/gpio/meson-g12a-gpio.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+       compatible = "hardkernel,odroid-c4", "amlogic,sm1";
+       model = "Hardkernel ODROID-C4";
+
+       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";
+
+               led-blue {
+                       color = <LED_COLOR_ID_BLUE>;
+                       function = LED_FUNCTION_STATUS;
+                       gpios = <&gpio_ao GPIOAO_11 GPIO_ACTIVE_HIGH>;
+                       linux,default-trigger = "heartbeat";
+                       panic-indicator;
+               };
+       };
+
+       tflash_vdd: regulator-tflash_vdd {
+               compatible = "regulator-fixed";
+
+               regulator-name = "TFLASH_VDD";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+
+               gpio = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_HIGH>;
+               enable-active-high;
+               regulator-always-on;
+       };
+
+       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_6 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;
+               vin-supply = <&main_12v>;
+       };
+
+       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 */
+       };
+
+       vddcpu: regulator-vddcpu {
+               /*
+                * MP8756GD Regulator.
+                */
+               compatible = "pwm-regulator";
+
+               regulator-name = "VDDCPU";
+               regulator-min-microvolt = <721000>;
+               regulator-max-microvolt = <1022000>;
+
+               vin-supply = <&main_12v>;
+
+               pwms = <&pwm_AO_cd 1 1250 0>;
+               pwm-dutycycle-range = <100 0>;
+
+               regulator-boot-on;
+               regulator-always-on;
+       };
+
+       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_4 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_ao GPIOAO_2 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>;
+                       };
+               };
+       };
+};
+
+&cpu0 {
+       cpu-supply = <&vddcpu>;
+       operating-points-v2 = <&cpu_opp_table>;
+       clocks = <&clkc CLKID_CPU_CLK>;
+       clock-latency = <50000>;
+};
+
+&cpu1 {
+       cpu-supply = <&vddcpu>;
+       operating-points-v2 = <&cpu_opp_table>;
+       clocks = <&clkc CLKID_CPU1_CLK>;
+       clock-latency = <50000>;
+};
+
+&cpu2 {
+       cpu-supply = <&vddcpu>;
+       operating-points-v2 = <&cpu_opp_table>;
+       clocks = <&clkc CLKID_CPU2_CLK>;
+       clock-latency = <50000>;
+};
+
+&cpu3 {
+       cpu-supply = <&vddcpu>;
+       operating-points-v2 = <&cpu_opp_table>;
+       clocks = <&clkc CLKID_CPU3_CLK>;
+       clock-latency = <50000>;
+};
+
+&ext_mdio {
+       external_phy: ethernet-phy@0 {
+               /* Realtek RTL8211F (0x001cc916) */
+               reg = <0>;
+               max-speed = <1000>;
+
+               interrupt-parent = <&gpio_intc>;
+               /* MAC_INTR on GPIOZ_14 */
+               interrupts = <26 IRQ_TYPE_LEVEL_LOW>;
+       };
+};
+
+&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 {
+       gpio-line-names =
+               /* GPIOZ */
+               "", "", "", "", "", "", "", "",
+               "", "", "", "", "", "", "", "",
+               /* GPIOH */
+               "", "", "", "", "",
+               "PIN_36", /* GPIOH_5 */
+               "PIN_26", /* GPIOH_6 */
+               "PIN_32", /* GPIOH_7 */
+               "",
+               /* BOOT */
+               "", "", "", "", "", "", "", "",
+               "", "", "", "", "", "", "", "",
+               /* GPIOC */
+               "", "", "", "", "", "", "", "",
+               /* GPIOA */
+               "", "", "", "", "", "", "", "",
+               "", "", "", "", "", "",
+               "PIN_27", /* GPIOA_14 */
+               "PIN_28", /* GPIOA_15 */
+               /* GPIOX */
+               "PIN_16", /* GPIOX_0 */
+               "PIN_18", /* GPIOX_1 */
+               "PIN_22", /* GPIOX_2 */
+               "PIN_11", /* GPIOX_3 */
+               "PIN_13", /* GPIOX_4 */
+               "PIN_7",  /* GPIOX_5 */
+               "PIN_33", /* GPIOX_6 */
+               "PIN_15", /* GPIOX_7 */
+               "PIN_19", /* GPIOX_8 */
+               "PIN_21", /* GPIOX_9 */
+               "PIN_24", /* GPIOX_10 */
+               "PIN_23", /* GPIOX_11 */
+               "PIN_8",  /* GPIOX_12 */
+               "PIN_10", /* GPIOX_13 */
+               "PIN_29", /* GPIOX_14 */
+               "PIN_31", /* GPIOX_15 */
+               "PIN_12", /* GPIOX_16 */
+               "PIN_3",  /* GPIOX_17 */
+               "PIN_5",  /* GPIOX_18 */
+               "PIN_35"; /* GPIOX_19 */
+
+       /*
+        * WARNING: The USB Hub on the Odroid-C4 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";
+       };
+};
+
+&gpio_ao {
+       gpio-line-names =
+               /* GPIOAO */
+               "", "", "", "",
+               "PIN_47", /* GPIOAO_4 */
+               "", "",
+               "PIN_45", /* GPIOAO_7 */
+               "PIN_46", /* GPIOAO_8 */
+               "PIN_44", /* GPIOAO_9 */
+               "PIN_42", /* GPIOAO_10 */
+               "",
+               /* GPIOE */
+               "", "", "";
+};
+
+&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";
+       linux,rc-map-name = "rc-odroid";
+};
+
+&pwm_AO_cd {
+       pinctrl-0 = <&pwm_ao_d_e_pins>;
+       pinctrl-names = "default";
+       clocks = <&xtal>;
+       clock-names = "clkin1";
+       status = "okay";
+};
+
+&saradc {
+       status = "okay";
+};
+
+/* 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 = <200000000>;
+       sd-uhs-sdr12;
+       sd-uhs-sdr25;
+       sd-uhs-sdr50;
+       sd-uhs-sdr104;
+       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_ctrl_pins>, <&emmc_data_8b_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>;
+};