octeon: n821: add Cisco vEdge 1000 base

This is the first commit to introduce the base for the N821 board used
in Cisco vEdge 1000.

This commit does not include the custom CPLD drivers but rather
everything else that is already present in the upstream kernel.

This results in an image that boots, but e.g. the SFP ports are not
usable.

Hardware:

  - CPU: Cavium Networks CN6130, 4 cores @ 1.0 GHz
  - Flash:
    - 16 MiB SPI NOR presented as 2x8 MiB for A/B boot recovery
    - 8192 MiB eMMC
  - RAM: 4096 MiB
  - Ethernet 1Gbit ports: 1x
  - Ethernet SFP ports: 8x
  - USB ports: 2x 3.0 Type-A on front panel
  - Serial: Two, one internal and one external
  - JTAG: Yes
  - LED count: 18x
  - Button count: 1x
  - GPIOs: 1x
  - Power: 2x redundant DC 12V barrel plug
  - Extra: Slot for SD card on front

See the OpenWrt wiki for more hardware details.

Installation:

  - Flash squashfs to /dev/sda2 and put kernel on /dev/sda1.
  - Update uboot's bootcmd environment variable to match.

Full installation guide will be added to OpenWrt wiki when sysupgrade
support is added.

Signed-off-by: Christian Svensson <blue@cmd.nu>
Signed-off-by: Tommy Nevtelen <tommy@nevtelen.com>
Tested-by: Viktor Ekmark <viktor@ekmark.se>
Tested-by: Daniel Wennberg <github@networkninja.se>

package/boot/uboot-envtools/files/octeon

@@ -0,0 +1,23 @@
+#
+# Copyright (C) 2023 OpenWrt.org
+#
+
+[ -e /etc/config/ubootenv ] && exit 0
+
+touch /etc/config/ubootenv
+
+. /lib/uboot-envtools.sh
+. /lib/functions.sh
+
+board=$(board_name)
+
+case "$board" in
+cisco,vedge1000)
+	ubootenv_add_uci_config "/dev/mtd1" "0x0" "0x20000"
+	;;
+esac
+
+config_load ubootenv
+config_foreach ubootenv_add_app_config ubootenv
+
+exit 0

target/linux/octeon/base-files/etc/board.d/01_network

@@ -17,6 +17,9 @@ ubnt,edgerouter-4)
 ubnt,edgerouter-6p)
 	ucidef_set_interfaces_lan_wan "lan1 lan2 lan3 lan4 lan5" "lan0"
 	;;
+cisco,vedge1000)
+	ucidef_set_interfaces_lan_wan "mgmt0" "lan0"
+	;;
 *)
 	ucidef_set_interfaces_lan_wan "eth0" "eth1"
 	;;

target/linux/octeon/base-files/lib/preinit/01_sysinfo

@@ -3,6 +3,15 @@ do_sysinfo_octeon() {
 	local name
 
 	machine=$(grep "^system type" /proc/cpuinfo | sed "s/system type.*: \(.*\)/\1/g")
+	of_machine=$(head -n1 /sys/firmware/devicetree/base/compatible)
+
+	# Sadly for whatever reason the N821 (Cisco Viptela vEdge 1000) uses the
+	# same supposedly unique board ID as the EdgeRouter. This is bad, so
+	# we override what cpuinfo gives us using the device tree as a hint.
+	case "$of_machine" in
+	"cisco,vedge1000"*)
+		return 0
+	esac
 
 	case "$machine" in
 	"UBNT_E100"*)

target/linux/octeon/files/arch/mips/boot/dts/cavium-octeon/cn6130_cisco_vedge1000.dts

@@ -0,0 +1,293 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+/include/ "octeon_3xxx.dtsi"
+
+/ {
+	compatible = "cisco,vedge1000", "cavium,cn6130";
+	model = "Cisco/Viptela vEdge 1000";
+	#address-cells = <2>;
+	#size-cells = <2>;
+	interrupt-parent = <&ciu>;
+
+	soc@0 {
+		smi0: mdio@1180000001800 {
+			mgmtphy: ethernet-phy@0 {
+				reg = <0x00>;
+			};
+		};
+
+		mgmt0: ethernet@1070000100000 {
+			compatible = "cavium,octeon-5750-mix";
+			reg = <0x10700 0x100000 0x00 0x100>,
+			      <0x11800 0xe0000000 0x00 0x300>,
+			      <0x11800 0xe0000400 0x00 0x400>,
+			      <0x11800 0xe0002000 0x00 0x08>;
+			cell-index = <0x00>;
+			interrupts = <0x00 0x3e 0x01 0x2e>;
+			nvmem-cells = <&macaddr_eeprom>;
+			nvmem-cell-names = "mac-address";
+			phy-handle = <&mgmtphy>;
+		};
+
+		pip: pip@11800a0000000 {
+			interface@0 {
+				ethernet@0 {
+					nvmem-cells = <&macaddr_eeprom>;
+					nvmem-cell-names = "mac-address";
+					mac-address-increment = <(3)>;
+					label = "lan2";
+					/delete-property/ local-mac-address;
+				};
+
+				ethernet@1 {
+					nvmem-cells = <&macaddr_eeprom>;
+					nvmem-cell-names = "mac-address";
+					mac-address-increment = <(4)>;
+					label = "lan3";
+					/delete-property/ local-mac-address;
+				};
+
+				ethernet@2 {
+					nvmem-cells = <&macaddr_eeprom>;
+					nvmem-cell-names = "mac-address";
+					mac-address-increment = <(1)>;
+					label = "lan0";
+					/delete-property/ local-mac-address;
+				};
+
+				ethernet@3 {
+					compatible = "cavium,octeon-3860-pip-port";
+					reg = <0x3>;
+					nvmem-cells = <&macaddr_eeprom>;
+					nvmem-cell-names = "mac-address";
+					mac-address-increment = <(2)>;
+					label = "lan1";
+				};
+			};
+
+			interface@1 {
+				ethernet@0 {
+					compatible = "cavium,octeon-3860-pip-port";
+					reg = <0x0>;
+					nvmem-cells = <&macaddr_eeprom>;
+					nvmem-cell-names = "mac-address";
+					mac-address-increment = <(7)>;
+					label = "lan6";
+				};
+
+				ethernet@1 {
+					compatible = "cavium,octeon-3860-pip-port";
+					reg = <0x1>;
+					nvmem-cells = <&macaddr_eeprom>;
+					nvmem-cell-names = "mac-address";
+					mac-address-increment = <(8)>;
+					label = "lan7";
+				};
+
+				ethernet@2 {
+					compatible = "cavium,octeon-3860-pip-port";
+					reg = <0x2>;
+					nvmem-cells = <&macaddr_eeprom>;
+					nvmem-cell-names = "mac-address";
+					mac-address-increment = <(5)>;
+					label = "lan4";
+				};
+
+				ethernet@3 {
+					compatible = "cavium,octeon-3860-pip-port";
+					reg = <0x3>;
+					nvmem-cells = <&macaddr_eeprom>;
+					nvmem-cell-names = "mac-address";
+					mac-address-increment = <(6)>;
+					label = "lan5";
+				};
+			};
+		};
+
+		twsi0: i2c@1180000001000 {
+			clock-frequency = <400000>;
+
+			jc42@18 {
+				compatible = "jedec,jc-42.4-temp";
+				reg = <0x18>;
+			};
+		};
+
+		twsi2: i2c@1180000001200 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "cavium,octeon-3860-twsi";
+			reg = <0x11800 0x1200 0x00 0x200>;
+			interrupts = <0x00 0x3b>;
+			clock-frequency = <400000>;
+
+			tmp@4c {
+				compatible = "maxim,max6699";
+				reg = <0x4c>;
+			};
+
+			rtc@6f {
+				compatible = "microchip,mcp7941x";
+				reg = <0x6f>;
+			};
+
+			tlv-eeprom@54 {
+				compatible = "atmel,24c512";
+				reg = <0x54>;
+				pagesize = <0x80>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				macaddr_eeprom: mac-address@8 {
+					reg = <0x8 6>;
+				};
+			};
+		};
+
+		uart0: serial@1180000000800 {
+			clock-frequency = <600000000>;
+			current-speed = <115200>;
+		};
+
+		uart1: serial@1180000000c00 {
+			compatible = "cavium,octeon-3860-uart", "ns16550";
+			reg = <0x11800 0xc00 0x00 0x400>;
+			reg-shift = <0x03>;
+			interrupts = <0x00 0x23>;
+			clock-frequency = <600000000>;
+			current-speed = <115200>;
+		};
+
+		mmc0: mmc@1180000002000 {
+			compatible = "cavium,octeon-6130-mmc";
+			reg = <0x11800 0x2000 0x00 0x100 0x11800 0x168 0x00 0x20>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			interrupts = <0x01 0x13 0x00 0x3f>;
+
+			mmc-slot@0 {
+				compatible = "cavium,octeon-6130-mmc-slot";
+				reg = <0x00>;
+				voltage-ranges = <0xce4 0xce4>;
+				max-frequency = <0x3197500>;
+				wp-gpios = <&gpio 0x02 0x00>;
+				cd-gpios = <&gpio 0x03 0x01>;
+				cavium,bus-max-width = <0x04>;
+			};
+		};
+
+		bootbus: bootbus@1180000000000 {
+			compatible = "cavium,octeon-3860-bootbus";
+			reg = <0x11800 0x00 0x00 0x200>;
+			#address-cells = <2>;
+			#size-cells = <1>;
+			ranges = <0 0 0x00 0x1ec00000 0x1400000>,
+				 <1 0 0x10000 0x20000000 0x00>,
+				 <2 0 0x10000 0x30000000 0x00>,
+				 <3 0 0x10000 0x40000000 0x00>,
+				 <4 0 0x10000 0x50000000 0x00>,
+				 <5 0 0x10000 0x60000000 0x00>,
+				 <6 0 0x00 0x1e000000 0x10000>,
+				 <7 0 0x10000 0x80000000 0x00>;
+
+			cavium,cs-config@0 {
+				compatible = "cavium,octeon-3860-bootbus-config";
+				cavium,cs-index = <0x00>;
+				cavium,t-adr = <0x0a>;
+				cavium,t-ce = <0x32>;
+				cavium,t-oe = <0x32>;
+				cavium,t-we = <0x23>;
+				cavium,t-rd-hld = <0x19>;
+				cavium,t-wr-hld = <0x23>;
+				cavium,t-pause = <0x00>;
+				cavium,t-wait = <0x12c>;
+				cavium,t-page = <0x19>;
+				cavium,t-rd-dly = <0x00>;
+				cavium,t-ale = <0x03>;
+				cavium,pages = <0x00>;
+				cavium,bus-width = <0x10>;
+			};
+
+			/delete-node/ cavium,cs-config@1;
+			/delete-node/ cavium,cs-config@2;
+			/delete-node/ cavium,cs-config@3;
+			/delete-node/ cavium,cs-config@4;
+			/delete-node/ cavium,cs-config@5;
+
+			cavium,cs-config@6 {
+				compatible = "cavium,octeon-3860-bootbus-config";
+				cavium,cs-index = <0x06>;
+				cavium,t-adr = <0x0a>;
+				cavium,t-ce = <0x0a>;
+				cavium,t-oe = <0xa0>;
+				cavium,t-we = <0x64>;
+				cavium,t-rd-hld = <0x00>;
+				cavium,t-wr-hld = <0x00>;
+				cavium,t-pause = <0x32>;
+				cavium,t-wait = <0x12c>;
+				cavium,t-page = <0x12c>;
+				cavium,t-rd-dly = <0x0a>;
+				cavium,t-ale = <0x3f>;
+				cavium,pages = <0x00>;
+				cavium,bus-width = <0x08>;
+				/delete-property/ cavium,wait-mode;
+			};
+
+			flash0: nor@0,0 {
+				compatible = "cfi-flash";
+				reg = <0x00 0x00 0x1000000>;
+				bank-width = <2>;
+				device-width = <1>;
+
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				partition@0 {
+					label = "bootloader";
+					reg = <0x00 0x200000>;
+					read-only;
+				};
+
+				partition@fe0000 {
+					label = "environment";
+					reg = <0xfe0000 0x20000>;
+				};
+			};
+
+			cpld: cpld@6,0 {
+				compatible = "cisco,n821-cpld", "syscon", "simple-mfd";
+				#address-cells = <1>;
+				#size-cells = <1>;
+				reg-io-width = <1>; // Syscon uses 4-byte accesses by default
+
+				reg = <0x06 0x00 0x28>;     // This is the regmap to be defined for syscon devices..
+				ranges = <0 0x06 0x0 0x50>; // .. and this is the addresses to map general subdevices on
+			};
+		};
+
+		uctl@118006f000000 {
+			compatible = "cavium,octeon-6335-uctl";
+			reg = <0x11800 0x6f000000 0x00 0x100>;
+			ranges;
+			#address-cells = <2>;
+			#size-cells = <2>;
+			refclk-frequency = <0xb71b00>;
+			refclk-type = "crystal";
+
+			ehci@16f0000000000 {
+				compatible = "cavium,octeon-6335-ehci", "usb-ehci";
+				reg = <0x16f00 0x00 0x00 0x100>;
+				interrupts = <0x00 0x38>;
+				big-endian-regs;
+			};
+
+			ohci@16f0000000400 {
+				compatible = "cavium,octeon-6335-ohci", "usb-ohci";
+				reg = <0x16f00 0x400 0x00 0x100>;
+				interrupts = <0x00 0x38>;
+				big-endian-regs;
+			};
+		};
+	};
+};
+

target/linux/octeon/image/Makefile

@@ -94,4 +94,22 @@ define Device/ubnt_unifi-usg
 endef
 TARGET_DEVICES += ubnt_unifi-usg
 
+define Device/cisco_vedge1000
+  DEVICE_VENDOR := Cisco Viptela
+  DEVICE_MODEL := vEdge 1000
+  BOARD_NAME := cisco,vedge1000
+  DEVICE_PACKAGES += \
+	kmod-hwmon-jc42 \
+	kmod-hwmon-max6697 \
+	kmod-of-mdio \
+	kmod-rtc-ds1307 \
+	kmod-usb-dwc3 \
+	kmod-usb-storage-uas \
+	kmod-usb3
+  KERNEL := kernel-bin | append-dtb-elf
+  KERNEL_DEPENDS := $$(wildcard $(DTS_DIR)/$(DEVICE_DTS).dts)
+  DEVICE_DTS := cn6130_cisco_vedge1000
+endef
+TARGET_DEVICES += cisco_vedge1000
+
 $(eval $(call BuildImage))