realtek: add support for Linksys LGS352C

Hardware specification
----------------------

* RTL9311 SoC, 2 MIPS Interaptiv cores @ 1000MHz
* 512MB DRAM
* 2MB NOR Flash
* 128MB NAND Flash
* 48 x 10/100/1000BASE-T ports
* 4 x 10G SFP+ ports
* LM63 controlled fan
* Power LED, Fault LED
* Reset button on front panel
* UART (115200 8N1) via RJ45

Installation using serial interface
-----------------------------------

1. Press "a" "c" "p" during message "Enter correct key to stop autoboot"
2. Start network "rtk network on"
3. Load image "tftpboot <TFTP IP>:openwrt-realtek-rtl931x_nand-linksys_lgs352c-initramfs-kernel.bin"
4. Boot image "bootm"
5. Switch to first bootpartition "fw_setsys bootpartition 0"
5. Download sysupgrade "scp <IP>:openwrt-realtek-rtl931x_nand-linksys_lgs352c-squashfs-sysupgrade.bin /tmp/."
6. Install sysupgrade "sysupgrade /tmp/openwrt-realtek-rtl931x_nand-linksys_lgs352c-squashfs-sysupgrade.bin"

Installation using OEM webinterface
-----------------------------------

This is not possible because the OpenWrt NAND Flash layout is different
from the vendor layout. To be precise. Vendor uses:

- 64 MB vendor UBI root_data
- 32 MB vendor kernel+root 1 (~19 MB used)
- 32 MB vendor kernel+root 2 (~19 MB used)

OpenWrt uses:

- 64 MB vendor UBI (not touched)
- 10 MB OpenWrt kernel
- 22 MB Openwrt mtd-concat UBI
- 23 MB vendor kernel 2 (space reduced, vendor data unchanged)
- 09 MB OpenWrt mtd-concat UBI

Dual-boot with stock firmware using writable u-boot-env
-------------------------------------------------------

From stock to OpenWrt / primary image 1 (CLI as admin):
   - > boot system image1
   - > reboot

From OpenWrt to stock / boot image 2: (shell as root)
   - # fw_setsys bootpartition 1
   - # reboot

Debrick using serial interface
------------------------------

1. Press "a" "c" "p" during message "Enter correct key to stop autoboot"
2. Load vendor image with "upgrade runtime <TFTP IP>:LGS352xxxxx.imag"
3. switch to primary partition "setsys bootpartition 0"
4. safe config "savesys"

Further documentation
---------------------
See https://openwrt.org/toh/linksys/lgs352c

Signed-off-by: Markus Stockhausen <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/20255
Signed-off-by: Robert Marko <[email protected]>

target/linux/realtek/base-files/lib/upgrade/platform.sh

@@ -39,7 +39,8 @@ platform_do_upgrade() {
 		tplink_sg2xxx_fix_mtdparts
 		default_do_upgrade "$1"
 		;;
-	linksys,lgs328c)
+	linksys,lgs328c|\
+	linksys,lgs352c)
 		nand_do_upgrade "$1"
 		;;
 	*)

target/linux/realtek/dts/rtl9311_linksys_lgs352c.dts

@@ -0,0 +1,430 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later or MIT)
+/dts-v1/;
+
+#include "rtl931x.dtsi"
+#include "rtl93xx_linksys_lgs3xxc_nand_common.dtsi"
+
+/ {
+	compatible = "linksys,lgs352c", "realtek,rtl9311-soc";
+	model = "Linksys LGS352C";
+};
+
+&i2c_mst1 {
+	status = "okay";
+
+	i2c2: i2c@2 {
+		reg = <2>;
+
+		lm63@4c {
+			compatible = "national,lm63";
+			reg = <0x4c>;
+		};
+	};
+	i2c5: i2c@5 {
+		reg = <5>;
+	};
+	i2c6: i2c@6 {
+		reg = <6>;
+	};
+	i2c7: i2c@7 {
+		reg = <7>;
+	};
+	i2c9: i2c@9 {
+		reg = <9>;
+	};
+};
+
+&sfp0 {
+	i2c-bus = <&i2c5>;
+};
+
+&sfp1 {
+	i2c-bus = <&i2c6>;
+};
+
+&sfp2 {
+	i2c-bus = <&i2c7>;
+};
+
+&sfp3 {
+	i2c-bus = <&i2c9>;
+};
+
+&mdio_aux {
+	status = "okay";
+	gpio1: expander@3 {
+		compatible = "realtek,rtl8231";
+		reg = <3>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-ranges = <&gpio1 0 0 37>;
+
+		led-controller {
+			compatible = "realtek,rtl8231-leds";
+			status = "disabled";
+		};
+	};
+};
+
+&mdio_ctrl {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinmux_enable_mdc_mdio_0>,
+		    <&pinmux_enable_mdc_mdio_1>;
+};
+
+&mdio_bus0 {
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 0>;
+	};
+	phy1: ethernet-phy@1 {
+		reg = <1>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 1>;
+	};
+	phy2: ethernet-phy@2 {
+		reg = <2>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 2>;
+	};
+	phy3: ethernet-phy@3 {
+		reg = <3>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 3>;
+	};
+	phy4: ethernet-phy@4 {
+		reg = <4>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 4>;
+	};
+	phy5: ethernet-phy@5 {
+		reg = <5>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 5>;
+	};
+	phy6: ethernet-phy@6 {
+		reg = <6>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 6>;
+	};
+	phy7: ethernet-phy@7 {
+		reg = <7>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 7>;
+	};
+	phy8: ethernet-phy@8 {
+		reg = <8>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 8>;
+	};
+	phy9: ethernet-phy@9 {
+		reg = <9>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 9>;
+	};
+	phy10: ethernet-phy@10 {
+		reg = <10>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 10>;
+	};
+	phy11: ethernet-phy@11 {
+		reg = <11>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 11>;
+	};
+	phy12: ethernet-phy@12 {
+		reg = <12>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 12>;
+	};
+	phy13: ethernet-phy@13 {
+		reg = <13>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 13>;
+	};
+	phy14: ethernet-phy@14 {
+		reg = <14>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 14>;
+	};
+	phy15: ethernet-phy@15 {
+		reg = <15>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 15>;
+	};
+	phy16: ethernet-phy@16 {
+		reg = <16>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 16>;
+	};
+	phy17: ethernet-phy@17 {
+		reg = <17>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 17>;
+	};
+	phy18: ethernet-phy@18 {
+		reg = <18>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 18>;
+	};
+	phy19: ethernet-phy@19 {
+		reg = <19>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 19>;
+	};
+	phy20: ethernet-phy@20 {
+		reg = <20>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 20>;
+	};
+	phy21: ethernet-phy@21 {
+		reg = <21>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 21>;
+	};
+	phy22: ethernet-phy@22 {
+		reg = <22>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 22>;
+	};
+	phy23: ethernet-phy@23 {
+		reg = <23>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <0 23>;
+	};
+	phy24: ethernet-phy@24 {
+		reg = <24>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 0>;
+	};
+	phy25: ethernet-phy@25 {
+		reg = <25>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 1>;
+	};
+	phy26: ethernet-phy@26 {
+		reg = <26>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 2>;
+	};
+	phy27: ethernet-phy@27 {
+		reg = <27>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 3>;
+	};
+	phy28: ethernet-phy@28 {
+		reg = <28>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 4>;
+	};
+	phy29: ethernet-phy@29 {
+		reg = <29>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 5>;
+	};
+	phy30: ethernet-phy@30 {
+		reg = <30>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 6>;
+	};
+	phy31: ethernet-phy@31 {
+		reg = <31>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 7>;
+	};
+	phy32: ethernet-phy@32 {
+		reg = <32>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 8>;
+	};
+	phy33: ethernet-phy@33 {
+		reg = <33>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 9>;
+	};
+	phy34: ethernet-phy@34 {
+		reg = <34>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 10>;
+	};
+	phy35: ethernet-phy@35 {
+		reg = <35>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 11>;
+	};
+	phy36: ethernet-phy@36 {
+		reg = <36>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 12>;
+	};
+	phy37: ethernet-phy@37 {
+		reg = <37>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 13>;
+	};
+	phy38: ethernet-phy@38 {
+		reg = <38>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 14>;
+	};
+	phy39: ethernet-phy@39 {
+		reg = <39>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 15>;
+	};
+	phy40: ethernet-phy@40 {
+		reg = <40>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 16>;
+	};
+	phy41: ethernet-phy@41 {
+		reg = <41>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 17>;
+	};
+	phy42: ethernet-phy@42 {
+		reg = <42>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 18>;
+	};
+	phy43: ethernet-phy@43 {
+		reg = <43>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 19>;
+	};
+	phy44: ethernet-phy@44 {
+		reg = <44>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 20>;
+	};
+	phy45: ethernet-phy@45 {
+		reg = <45>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 21>;
+	};
+	phy46: ethernet-phy@46 {
+		reg = <46>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 22>;
+	};
+	phy47: ethernet-phy@47 {
+		reg = <47>;
+		compatible = "ethernet-phy-ieee802.3-c22";
+		rtl9300,smi-address = <1 23>;
+	};
+
+	INTERNAL_PHY(48)
+	INTERNAL_PHY(49)
+	INTERNAL_PHY(50)
+	INTERNAL_PHY(51)
+};
+
+&switch0 {
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		SWITCH_PORT_SDS(0, 1, 2, usxgmii)
+		SWITCH_PORT_SDS(1, 2, 2, usxgmii)
+		SWITCH_PORT_SDS(2, 3, 2, usxgmii)
+		SWITCH_PORT_SDS(3, 4, 2, usxgmii)
+		SWITCH_PORT_SDS(4, 5, 2, usxgmii)
+		SWITCH_PORT_SDS(5, 6, 2, usxgmii)
+		SWITCH_PORT_SDS(6, 7, 2, usxgmii)
+		SWITCH_PORT_SDS(7, 8, 2, usxgmii)
+
+		SWITCH_PORT_SDS(8, 9, 3, usxgmii)
+		SWITCH_PORT_SDS(9, 10, 3, usxgmii)
+		SWITCH_PORT_SDS(10, 11, 3, usxgmii)
+		SWITCH_PORT_SDS(11, 12, 3, usxgmii)
+		SWITCH_PORT_SDS(12, 13, 3, usxgmii)
+		SWITCH_PORT_SDS(13, 14, 3, usxgmii)
+		SWITCH_PORT_SDS(14, 15, 3, usxgmii)
+		SWITCH_PORT_SDS(15, 16, 3, usxgmii)
+
+		SWITCH_PORT_SDS(16, 17, 4, usxgmii)
+		SWITCH_PORT_SDS(17, 18, 4, usxgmii)
+		SWITCH_PORT_SDS(18, 19, 4, usxgmii)
+		SWITCH_PORT_SDS(19, 20, 4, usxgmii)
+		SWITCH_PORT_SDS(20, 21, 4, usxgmii)
+		SWITCH_PORT_SDS(21, 22, 4, usxgmii)
+		SWITCH_PORT_SDS(22, 23, 4, usxgmii)
+		SWITCH_PORT_SDS(23, 24, 4, usxgmii)
+
+		SWITCH_PORT_SDS(24, 25, 5, usxgmii)
+		SWITCH_PORT_SDS(25, 26, 5, usxgmii)
+		SWITCH_PORT_SDS(26, 27, 5, usxgmii)
+		SWITCH_PORT_SDS(27, 28, 5, usxgmii)
+		SWITCH_PORT_SDS(28, 29, 5, usxgmii)
+		SWITCH_PORT_SDS(29, 30, 5, usxgmii)
+		SWITCH_PORT_SDS(30, 31, 5, usxgmii)
+		SWITCH_PORT_SDS(31, 32, 5, usxgmii)
+
+		SWITCH_PORT_SDS(32, 33, 6, usxgmii)
+		SWITCH_PORT_SDS(33, 34, 6, usxgmii)
+		SWITCH_PORT_SDS(34, 35, 6, usxgmii)
+		SWITCH_PORT_SDS(35, 36, 6, usxgmii)
+		SWITCH_PORT_SDS(36, 37, 6, usxgmii)
+		SWITCH_PORT_SDS(37, 38, 6, usxgmii)
+		SWITCH_PORT_SDS(38, 39, 6, usxgmii)
+		SWITCH_PORT_SDS(39, 40, 6, usxgmii)
+
+		SWITCH_PORT_SDS(40, 41, 7, usxgmii)
+		SWITCH_PORT_SDS(41, 42, 7, usxgmii)
+		SWITCH_PORT_SDS(42, 43, 7, usxgmii)
+		SWITCH_PORT_SDS(43, 44, 7, usxgmii)
+		SWITCH_PORT_SDS(44, 45, 7, usxgmii)
+		SWITCH_PORT_SDS(45, 46, 7, usxgmii)
+		SWITCH_PORT_SDS(46, 47, 7, usxgmii)
+		SWITCH_PORT_SDS(47, 48, 7, usxgmii)
+
+		port@48 {
+			reg = <48>;
+			label = "lan49";
+			pcs-handle = <&serdes8>;
+			phy-handle = <&phy48>;
+			phy-mode = "1000base-x";
+			managed = "in-band-status";
+			sfp = <&sfp0>;
+		};
+		port@49 {
+			reg = <49>;
+			label = "lan50";
+			pcs-handle = <&serdes9>;
+			phy-handle = <&phy49>;
+			phy-mode = "1000base-x";
+			managed = "in-band-status";
+			sfp = <&sfp1>;
+		};
+		port@50 {
+			reg = <50>;
+			label = "lan51";
+			pcs-handle = <&serdes10>;
+			phy-handle = <&phy50>;
+			phy-mode = "1000base-x";
+			managed = "in-band-status";
+			sfp = <&sfp2>;
+		};
+		port@51 {
+			reg = <51>;
+			label = "lan52";
+			pcs-handle = <&serdes11>;
+			phy-handle = <&phy51>;
+			phy-mode = "1000base-x";
+			managed = "in-band-status";
+			sfp = <&sfp3>;
+		};
+
+		port@56 {
+			ethernet = <&ethernet0>;
+			reg = <56>;
+			phy-mode = "internal";
+			fixed-link {
+				speed = <10000>;
+				full-duplex;
+			};
+		};
+	};
+};

target/linux/realtek/image/rtl931x_nand.mk

@@ -1 +1,28 @@
 # SPDX-License-Identifier: GPL-2.0-only
+
+include ./common.mk
+
+define Device/linksys_lgs352c
+  $(Device/uimage-rt-loader)
+  SOC := rtl9311
+  IMAGE_SIZE := 29696k
+  KERNEL_SIZE := 10240k
+  DEVICE_VENDOR := Linksys
+  DEVICE_MODEL := LGS352C
+  DEVICE_PACKAGES += kmod-hwmon-lm63
+  BELKIN_MODEL := BKS-RTL93xx
+  BELKIN_HEADER := 0x07600001
+  LINKSYS_MODEL := 60422050
+  PAGESIZE := 2048
+  BLOCKSIZE := 128k
+  UBINIZE_OPTS := -E 5
+  KERNEL := \
+	$$(KERNEL) | \
+	pad-to $$(BLOCKSIZE)
+  IMAGE/sysupgrade.bin := \
+	append-rootfs | \
+	pad-rootfs | \
+	sysupgrade-tar rootfs=$$$$@ | \
+	append-metadata
+endef
+TARGET_DEVICES += linksys_lgs352c