[openwrt/openwrt] realtek: add support for D-Link DGS-1210-20

[LEDE Commits]

svanheule pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/6153c530cc2ae139c6cdde68a4ba53bd2f82bf68

commit 6153c530cc2ae139c6cdde68a4ba53bd2f82bf68
Author: Markus Stockhausen <markus.stockhausen at gmx.de>
AuthorDate: Thu Jun 16 11:41:02 2022 +0200

    realtek: add support for D-Link DGS-1210-20
    
     Hardware specification
     ----------------------
    
     * RTL8382M SoC, 1 MIPS 4KEc core @ 500MHz
     * 128MB DRAM
     * 32MB NOR Flash
     * 16 x 10/100/1000BASE-T ports
        - Internal PHY with 8 ports (RTL8218B)
        - External PHY with 8 ports (RTL8218B)
     * 4 x Gigabit RJ45/SFP Combo ports
        - External PHY with 4 SFP ports (RTL8214FC)
     * Power LED
     * Reset button on front panel
     * UART (115200 8N1) via unpopulated standard 0.1" pin header marked J6
    
     UART pinout
     -----------
    
      [o]ooo|J6
       | ||`------ GND
       | |`------- RX
       | `-------- TX
       `---------- Vcc (3V3)
    
     Boot initramfs image from U-Boot
     --------------------------------
    
      1. Press Escape key during `Hit Esc key to stop autoboot` prompt
      2. Press CTRL+C keys to get into real U-Boot prompt
      3. Init network with `rtk network on` command
      4. Load image with `tftpboot 0x8f000000 openwrt-realtek-rtl838x-d-link_dgs-1210-20-initramfs-kernel.bin` command
      5. Boot the image with `bootm` command
    
    To install, upload the sysupgrade image to the OEM webpage or sysupgrade
    from the system running from initramfs image.
    
    It has been developed and tested on device with F1 revision.
    
    Signed-off-by: Markus Stockhausen <markus.stockhausen at gmx.de>
    [correct initramfs image name]
    Signed-off-by: Sander Vanheule <sander at svanheule.net>
---
 package/boot/uboot-envtools/files/realtek          |   1 +
 .../dts-5.10/rtl8382_d-link_dgs-1210-20.dts        | 104 +++++++++++++++++++++
 target/linux/realtek/image/rtl838x.mk              |   6 ++
 3 files changed, 111 insertions(+)

diff --git a/package/boot/uboot-envtools/files/realtek b/package/boot/uboot-envtools/files/realtek
index af48d27078..93cccfdc3e 100644
--- a/package/boot/uboot-envtools/files/realtek
+++ b/package/boot/uboot-envtools/files/realtek
@@ -9,6 +9,7 @@ board=$(board_name)
 
 case "$board" in
 d-link,dgs-1210-16|\
+d-link,dgs-1210-20|\
 d-link,dgs-1210-28|\
 d-link,dgs-1210-10p|\
 zyxel,gs1900-8|\
diff --git a/target/linux/realtek/dts-5.10/rtl8382_d-link_dgs-1210-20.dts b/target/linux/realtek/dts-5.10/rtl8382_d-link_dgs-1210-20.dts
new file mode 100644
index 0000000000..cd495bc343
--- /dev/null
+++ b/target/linux/realtek/dts-5.10/rtl8382_d-link_dgs-1210-20.dts
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "rtl8382_d-link_dgs-1210.dtsi"
+
+/ {
+	compatible = "d-link,dgs-1210-20", "realtek,rtl838x-soc";
+	model = "D-Link DGS-1210-20";
+
+	gpio-restart {
+		compatible = "gpio-restart";
+		gpios = <&gpio1 34 GPIO_ACTIVE_LOW>;
+		open-source;
+	};
+
+	keys {
+		compatible = "gpio-keys-polled";
+		poll-interval = <20>;
+
+		reset {
+			label = "reset";
+			gpios = <&gpio1 33 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	gpio1: rtl8231-gpio {
+		compatible = "realtek,rtl8231-gpio";
+		#gpio-cells = <2>;
+		gpio-controller;
+		indirect-access-bus-id = <0>;
+	};
+};
+
+&ethernet0 {
+	mdio: mdio-bus {
+		compatible = "realtek,rtl838x-mdio";
+		regmap = <&ethernet0>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		EXTERNAL_PHY(0)
+		EXTERNAL_PHY(1)
+		EXTERNAL_PHY(2)
+		EXTERNAL_PHY(3)
+		EXTERNAL_PHY(4)
+		EXTERNAL_PHY(5)
+		EXTERNAL_PHY(6)
+		EXTERNAL_PHY(7)
+
+		INTERNAL_PHY(8)
+		INTERNAL_PHY(9)
+		INTERNAL_PHY(10)
+		INTERNAL_PHY(11)
+		INTERNAL_PHY(12)
+		INTERNAL_PHY(13)
+		INTERNAL_PHY(14)
+		INTERNAL_PHY(15)
+
+		EXTERNAL_SFP_PHY(24)
+		EXTERNAL_SFP_PHY(25)
+		EXTERNAL_SFP_PHY(26)
+		EXTERNAL_SFP_PHY(27)
+	};
+};
+
+&switch0 {
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		SWITCH_PORT(0, 1, qsgmii)
+		SWITCH_PORT(1, 2, qsgmii)
+		SWITCH_PORT(2, 3, qsgmii)
+		SWITCH_PORT(3, 4, qsgmii)
+		SWITCH_PORT(4, 5, qsgmii)
+		SWITCH_PORT(5, 6, qsgmii)
+		SWITCH_PORT(6, 7, qsgmii)
+		SWITCH_PORT(7, 8, qsgmii)
+
+		SWITCH_PORT(8, 9, internal)
+		SWITCH_PORT(9, 10, internal)
+		SWITCH_PORT(10, 11, internal)
+		SWITCH_PORT(11, 12, internal)
+		SWITCH_PORT(12, 13, internal)
+		SWITCH_PORT(13, 14, internal)
+		SWITCH_PORT(14, 15, internal)
+		SWITCH_PORT(15, 16, internal)
+
+		SWITCH_PORT(24, 17, qsgmii)
+		SWITCH_PORT(25, 18, qsgmii)
+		SWITCH_PORT(26, 19, qsgmii)
+		SWITCH_PORT(27, 20, qsgmii)
+
+		port at 28 {
+			ethernet = <&ethernet0>;
+			reg = <28>;
+			phy-mode = "internal";
+			fixed-link {
+				speed = <1000>;
+				full-duplex;
+			};
+		};
+	};
+};
diff --git a/target/linux/realtek/image/rtl838x.mk b/target/linux/realtek/image/rtl838x.mk
index 289e37db16..df145cfb69 100644
--- a/target/linux/realtek/image/rtl838x.mk
+++ b/target/linux/realtek/image/rtl838x.mk
@@ -30,6 +30,12 @@ define Device/d-link_dgs-1210-16
 endef
 TARGET_DEVICES += d-link_dgs-1210-16
 
+define Device/d-link_dgs-1210-20
+  $(Device/d-link_dgs-1210)
+  DEVICE_MODEL := DGS-1210-20
+endef
+TARGET_DEVICES += d-link_dgs-1210-20
+
 define Device/d-link_dgs-1210-28
   $(Device/d-link_dgs-1210)
   DEVICE_MODEL := DGS-1210-28