[openwrt/openwrt] realtek: add support for Panasonic Switch-M16eG PN28160K

LEDE Commits lede-commits at lists.infradead.org
Sat Aug 6 05:49:56 PDT 2022


svanheule pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/3d669ec9cd14cd9a80d861c5b620d4c997d7bb6a

commit 3d669ec9cd14cd9a80d861c5b620d4c997d7bb6a
Author: INAGAKI Hiroshi <musashino.open at gmail.com>
AuthorDate: Sun Apr 25 17:06:03 2021 +0900

    realtek: add support for Panasonic Switch-M16eG PN28160K
    
    Panasonic Switch-M16eG PN28160K is a 16 + 2 port gigabit switch, based on
    RTL8382M.
    
    Specification:
    
    - SoC           : Realtek RTL8382M
    - RAM           : DDR3 128 MiB (Winbond W631GG8KB-15)
    - Flash         : SPI-NOR 32 MiB (Macronix MX25L25635FMI-10G)
    - Ethernet      : 10/100/1000 Mbps x16 + 2
      - port 1-8    : TP, RTL8218B (SoC)
      - port 9-16   : RTL8218FB
        - port  9-14: TP
        - port 15-16: TP/SFP (Combo)
    - LEDs/Keys     : 7x / 1x
    - UART          : RS-232 port on the front panel (connector: RJ-45)
      - 3:TX, 4:GND, 5:GND, 6:RX (pin number: RJ-45)
      - 9600n8
    - Power         : 100-240 VAC, 50/60 Hz, 0.5 A
      - Plug        : IEC 60320-C13
    - Stock OS      : VxWorks based
    
    Flash instruction using initramfs image:
    
    1.  Prepare the TFTP server with the IP address 192.168.1.111
    2.  Rename the OpenWrt initramfs image to "0101A8C0.img" and place it to
        the TFTP directory
    3.  Download the official upgrading firmware (ex: pn28160k_v30003.rom)
        and place it to the TFTP directory
    4.  Boot M16eG and interrupt the U-Boot with Ctrl + C keys
    5.  Execute the following commands and boot with the OpenWrt initramfs
        image
    
        rtk network on
        tftpboot 0x81000000
        bootm
    
    6.  Backup mtdblock files to the computer by scp or anything and reboot
    7.  Interrupt the U-Boot and execute the following commands to re-create
        filesystem in the flash
    
        ffsmount c:/
        ffsfmt c:/
    
        this step takes a long time, about ~ 4 mins
    
    8.  Execute the following commands to put the official images to the
        filesystem
    
        updatert <official image>
    
        example:
    
          updatert pn28160k_v30003.rom
    
        this step takes about ~ 40 secs
    
    9.  Set the environment variables of the U-Boot by the following commands
    
        setenv loadaddr 0xb4e00000
        setenv bootcmd bootm
        saveenv
    
    10: Download the OpenWrt initramfs image and boot with it
    
        tftpboot 0x81000000 0101A8C0.img
        bootm
    
    11: On the initramfs image, download the sysupgrade image and perform
        sysupgrade with it
    
        sysupgrade <imagename>
    
    12: Wait ~ 120 seconds to complete flashing
    
    Known Issues:
    
    - 2x SFP ports are provided as combo ports by the RTL8218FB chip, but the
      phy driver has no support for it. Currently, only TP ports work by the
      RTL8218D support.
    
    Note:
    
    - "Switch-M16eG" is a model name, and "PN28160K" is a model number.
      Switch-M16eG has an another (old) model number ("PN28160"), it's not a
      Realtek based hardware.
    
    - Switch-M16eG has a "POWER" LED (Green), but it's not connected to any
      GPIO pin.
    
    - U-Boot checks the runtime images in the flash when booting and fails
      to execute "bootcmd" variable if the images are not existing.
    
    - A filesystem is formed in the flash (0x100000-0x1DFFFFF) on the stock
      firmware and it includes the stock images, configuration files and
      checksum files. It's unknown format, can't be managed on the OpenWrt.
      To get the enough space for OpenWrt, move the filesystem to the head
      of "fs_reserved" partition by execution of "ffsfmt" and "updatert".
    
    - A GPIO pin on PCA9539 is used for resetting external RTL8218FB phy.
      This should be specified as "reset-gpios" property in MDIO node, but
      RTL8218FB won't be configured on RTL8218D support in the phy driver.
      So, ethernet ports on the phy will be broken after hard-resetting.
      At the moment, configure this pin as gpio-hog to avoid breaking by
      resetting.
    
    Back to the stock firmware:
    
    1. Delete "loadaddr" variable and set "bootcmd" to the original value
    
       on U-Boot:
    
         setenv loadaddr
         setenv bootcmd 'bootm 0x81000000'
    
       on OpenWrt:
    
         fw_setenv loadaddr
         fw_setenv bootcmd 'bootm 0x81000000'
    
    2. Perform reset or reboot
    
      on U-Boot:
    
        reset
    
      on OpenWrt:
    
        reboot
    
    Signed-off-by: INAGAKI Hiroshi <musashino.open at gmail.com>
---
 .../dts-5.10/rtl8382_panasonic_m16eg-pn28160k.dts  | 171 +++++++++++++++++++++
 .../dts-5.10/rtl83xx_panasonic_mxxeg-pn28xx0k.dtsi |   1 +
 target/linux/realtek/image/rtl838x.mk              |  10 ++
 3 files changed, 182 insertions(+)

diff --git a/target/linux/realtek/dts-5.10/rtl8382_panasonic_m16eg-pn28160k.dts b/target/linux/realtek/dts-5.10/rtl8382_panasonic_m16eg-pn28160k.dts
new file mode 100644
index 0000000000..c3b29a87ff
--- /dev/null
+++ b/target/linux/realtek/dts-5.10/rtl8382_panasonic_m16eg-pn28160k.dts
@@ -0,0 +1,171 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "rtl838x.dtsi"
+#include "rtl83xx_panasonic_mxxeg-pn28xx0k.dtsi"
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	compatible = "panasonic,m16eg-pn28160k", "realtek,rtl8382-soc";
+	model = "Panasonic Switch-M16eG PN28160K";
+
+	aliases {
+		led-boot = &led_status_eco_green;
+		led-failsafe = &led_status_eco_amber;
+		led-running = &led_status_eco_green;
+		led-upgrade = &led_status_eco_green;
+	};
+
+	/*
+	 * sfp0/1 are "combo" port with each TP port (23/24), and they are
+	 * connected to the RTL8218FB. Currently, there is no support for
+	 * the chip and only TP ports work by the RTL8218D support.
+	 */
+	sfp0: sfp-p23 {
+		compatible = "sff,sfp";
+		i2c-bus = <&i2c0>;
+		tx-fault-gpio = <&gpio1 0 GPIO_ACTIVE_HIGH>;
+		tx-disable-gpio = <&gpio1 1 GPIO_ACTIVE_HIGH>;
+		mod-def0-gpio = <&gpio1 2 GPIO_ACTIVE_LOW>;
+		los-gpio = <&gpio1 3 GPIO_ACTIVE_HIGH>;
+	};
+
+	sfp1: sfp-p24 {
+		compatible = "sff,sfp";
+		i2c-bus = <&i2c1>;
+		tx-fault-gpio = <&gpio1 4 GPIO_ACTIVE_HIGH>;
+		tx-disable-gpio = <&gpio1 5 GPIO_ACTIVE_HIGH>;
+		mod-def0-gpio = <&gpio1 6 GPIO_ACTIVE_LOW>;
+		los-gpio = <&gpio1 7 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&leds {
+	led_status_eco_amber: led-5 {
+		label = "amber:status_eco";
+		gpios = <&gpio2 1 GPIO_ACTIVE_LOW>;
+		color = <LED_COLOR_ID_AMBER>;
+		function = LED_FUNCTION_STATUS;
+		function-enumerator = <1>;
+	};
+
+	led_status_eco_green: led-6 {
+		label = "green:status_eco";
+		gpios = <&gpio2 2 GPIO_ACTIVE_LOW>;
+		color = <LED_COLOR_ID_GREEN>;
+		function = LED_FUNCTION_STATUS;
+		function-enumerator = <2>;
+	};
+};
+
+&i2c_gpio_0 {
+	scl-gpios = <&gpio0 0 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	sda-gpios = <&gpio0 1 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+};
+
+&i2c_gpio_1 {
+	scl-gpios = <&gpio0 12 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	sda-gpios = <&gpio0 13 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+};
+
+&gpio2 {
+	interrupt-controller;
+	#interrupt-cells = <2>;
+	interrupt-parent = <&gpio0>;
+	interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
+
+	/*
+	 * GPIO12 (IO1_4): RTL8218FB
+	 *
+	 * This GPIO pin should be specified as "reset-gpio" in mdio node, but
+	 * RTL8218FB phy won't be configured on RTL8218D support in the current
+	 * phy driver. So, ethernet ports on the phy will be broken after hard-
+	 * resetting.
+	 * (RTL8218FB phy will be detected as RTL8218D by the phy driver)
+	 * At the moment, configure this GPIO pin as gpio-hog to avoid breaking
+	 * by resetting.
+	 */
+	ext_switch_reset {
+		gpio-hog;
+		gpios = <12 GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "ext-switch-reset";
+	};
+};
+
+&i2c_switch {
+	i2c0: i2c at 0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0>;
+	};
+
+	i2c1: i2c at 1 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <1>;
+	};
+};
+
+&ethernet0 {
+	mdio-bus {
+		compatible = "realtek,rtl838x-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		INTERNAL_PHY(8)
+		INTERNAL_PHY(9)
+		INTERNAL_PHY(10)
+		INTERNAL_PHY(11)
+		INTERNAL_PHY(12)
+		INTERNAL_PHY(13)
+		INTERNAL_PHY(14)
+		INTERNAL_PHY(15)
+
+		/* RTL8218FB */
+		EXTERNAL_PHY(16)
+		EXTERNAL_PHY(17)
+		EXTERNAL_PHY(18)
+		EXTERNAL_PHY(19)
+		EXTERNAL_PHY(20)
+		EXTERNAL_PHY(21)
+		EXTERNAL_PHY(22)
+		EXTERNAL_PHY(23)
+	};
+};
+
+&switch0 {
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		SWITCH_PORT(8, 1, internal)
+		SWITCH_PORT(9, 2, internal)
+		SWITCH_PORT(10, 3, internal)
+		SWITCH_PORT(11, 4, internal)
+		SWITCH_PORT(12, 5, internal)
+		SWITCH_PORT(13, 6, internal)
+		SWITCH_PORT(14, 7, internal)
+		SWITCH_PORT(15, 8, internal)
+
+		SWITCH_PORT(16, 9, qsgmii)
+		SWITCH_PORT(17, 10, qsgmii)
+		SWITCH_PORT(18, 11, qsgmii)
+		SWITCH_PORT(19, 12, qsgmii)
+		SWITCH_PORT(20, 13, qsgmii)
+		SWITCH_PORT(21, 14, qsgmii)
+		SWITCH_PORT(22, 15, qsgmii)
+		SWITCH_PORT(23, 16, qsgmii)
+
+		port at 28 {
+			ethernet = <&ethernet0>;
+			reg = <28>;
+			phy-mode = "internal";
+
+			fixed-link {
+				speed = <1000>;
+				full-duplex;
+			};
+		};
+	};
+};
diff --git a/target/linux/realtek/dts-5.10/rtl83xx_panasonic_mxxeg-pn28xx0k.dtsi b/target/linux/realtek/dts-5.10/rtl83xx_panasonic_mxxeg-pn28xx0k.dtsi
index 48aa1849d6..fb2aa18d21 100644
--- a/target/linux/realtek/dts-5.10/rtl83xx_panasonic_mxxeg-pn28xx0k.dtsi
+++ b/target/linux/realtek/dts-5.10/rtl83xx_panasonic_mxxeg-pn28xx0k.dtsi
@@ -94,6 +94,7 @@
 			/*
 			 * GPIO14 (IO1_6): Shift Register RESET (port LED)
 			 * - Switch-M8eG  PN28080K:  3x 74HC164
+			 * - Switch-M16eG PN28160K:  4x 74HC164
 			 * - Switch-M24eG PN28240K:  6x 74HC164
 			 * - Switch-M48eG PN28480K: 12x 74HC164
 			 */
diff --git a/target/linux/realtek/image/rtl838x.mk b/target/linux/realtek/image/rtl838x.mk
index 60eda5359d..cbd41ce841 100644
--- a/target/linux/realtek/image/rtl838x.mk
+++ b/target/linux/realtek/image/rtl838x.mk
@@ -138,6 +138,16 @@ define Device/netgear_gs310tp-v1
 endef
 TARGET_DEVICES += netgear_gs310tp-v1
 
+define Device/panasonic_m16eg-pn28160k
+  SOC := rtl8382
+  IMAGE_SIZE := 16384k
+  DEVICE_VENDOR := Panasonic
+  DEVICE_MODEL := Switch-M16eG
+  DEVICE_VARIANT := PN28160K
+  DEVICE_PACKAGES := kmod-i2c-mux-pca954x
+endef
+TARGET_DEVICES += panasonic_m16eg-pn28160k
+
 define Device/panasonic_m8eg-pn28080k
   SOC := rtl8380
   IMAGE_SIZE := 16384k




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