board: freebox: add Nodebox 10G board support

Add board support for the Freebox Nodebox 10G based on the Marvell
Armada 8040 SoC. This board features:

- Quad-core ARMv8 AP806 with dual CP110 companions
- eMMC storage via Xenon SDHCI controller
- 1G SGMII Ethernet on CP0 lane 5
- I2C buses for peripheral access
- NS16550 UART console at 115200 baud

The implementation includes:
- Device tree for the Nodebox 10G hardware
- Dedicated board directory (board/freebox/nbx10g/)
- Board-specific Kconfig and defconfig

The U-Boot comphy bindings (phy-type/phy-speed) differ from the
mainline Linux PHY framework bindings used by phy-mvebu-cp110-comphy,
so U-Boot and the kernel each have their own device tree.

Signed-off-by: Vincent Jardin <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>

3 files changed, 269 insertions, 0 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 722a7a662b1..c647379c5ac 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -163,6 +163,7 @@ dtb-$(CONFIG_ARCH_MVEBU) +=			\
 	armada-8040-clearfog-gt-8k.dtb		\
 	armada-8040-db.dtb			\
 	armada-8040-mcbin.dtb			\
+	armada-8040-nbx.dtb			\
 	armada-8040-puzzle-m801.dtb		\
 	cn9130-db-A.dtb				\
 	cn9130-db-B.dtb				\
diff --git a/arch/arm/dts/armada-8040-nbx.dts b/arch/arm/dts/armada-8040-nbx.dts
new file mode 100644
index 00000000000..b8b7298b4f5
--- /dev/null
+++ b/arch/arm/dts/armada-8040-nbx.dts
@@ -0,0 +1,259 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Device Tree file for NBX board (Freebox Nodebox10G)
+ * Based on Marvell Armada 8040 SoC
+ *
+ * Copyright (C) 2024
+ */
+
+#include "armada-8040.dtsi"
+
+/ {
+	model = "NBX Armada 8040";
+	compatible = "nbx,armada8040", "marvell,armada8040";
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	aliases {
+		i2c0 = &cp0_i2c0;
+		i2c1 = &cp0_i2c1;
+		gpio0 = &ap_gpio0;
+		gpio1 = &cp0_gpio0;
+		gpio2 = &cp0_gpio1;
+	};
+
+	memory@00000000 {
+		device_type = "memory";
+		reg = <0x0 0x0 0x0 0x80000000>;  /* 2GB */
+	};
+};
+
+/* AP806 UART - active */
+&uart0 {
+	status = "okay";
+};
+
+/* AP806 pinctrl */
+&ap_pinctl {
+	/*
+	 * MPP Bus:
+	 * eMMC  [0-10]
+	 * UART0 [11,19]
+	 */
+		  /* 0 1 2 3 4 5 6 7 8 9 */
+	pin-func = < 1 1 1 1 1 1 1 1 1 1
+		     1 3 0 0 0 0 0 0 0 3 >;
+};
+
+/* AP806 on-board eMMC */
+&ap_sdhci0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ap_emmc_pins>;
+	bus-width = <8>;
+	non-removable;
+	status = "okay";
+};
+
+/* CP0 pinctrl */
+&cp0_pinctl {
+	/*
+	 * MPP Bus:
+	 * [0-31]  = 0xff: Keep default CP0_shared_pins
+	 * [32,34] GE_MDIO/MDC
+	 * [35-36] I2C1
+	 * [37-38] I2C0
+	 * [57-58] MSS I2C
+	 */
+		/*   0    1    2    3    4    5    6    7    8    9 */
+	pin-func = < 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
+		     0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
+		     0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
+		     0xff 0xff 7    0    7    2    2    2    2    0
+		     0    0    0    0    0    0    0    0    0    0
+		     0    0    0    0    0    0    0    2    2    0
+		     0    0    0 >;
+
+	cp0_smi_pins: cp0-smi-pins {
+		marvell,pins = <32 34>;
+		marvell,function = <7>;
+	};
+};
+
+/* CP0 I2C0 */
+&cp0_i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&cp0_i2c0_pins>;
+	status = "okay";
+	clock-frequency = <100000>;
+};
+
+/* CP0 I2C1 */
+&cp0_i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&cp0_i2c1_pins>;
+	status = "okay";
+	clock-frequency = <100000>;
+};
+
+/* CP0 MSS I2C0 - Management SubSystem I2C (pins 57-58, func 2) */
+&cp0_mss_i2c0 {
+	status = "okay";
+};
+
+/* CP0 MDIO for PHY */
+&cp0_mdio {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&cp0_smi_pins>;
+
+	nbx_phy0: ethernet-phy@0 {
+		reg = <0>;
+	};
+};
+
+/* CP0 ComPhy - SerDes configuration */
+&cp0_comphy {
+	/*
+	 * CP0 Serdes Configuration:
+	 * Lane 0-3: Unconnected
+	 * Lane 4:   SFI (10G Ethernet)
+	 * Lane 5:   SGMII2 (1G Ethernet)
+	 */
+	phy0 {
+		phy-type = <COMPHY_TYPE_UNCONNECTED>;
+	};
+	phy1 {
+		phy-type = <COMPHY_TYPE_UNCONNECTED>;
+	};
+	phy2 {
+		phy-type = <COMPHY_TYPE_UNCONNECTED>;
+	};
+	phy3 {
+		phy-type = <COMPHY_TYPE_UNCONNECTED>;
+	};
+	phy4 {
+		phy-type = <COMPHY_TYPE_SFI0>;
+		phy-speed = <COMPHY_SPEED_10_3125G>;
+	};
+	phy5 {
+		phy-type = <COMPHY_TYPE_SGMII2>;
+		phy-speed = <COMPHY_SPEED_1_25G>;
+	};
+};
+
+/* CP0 Ethernet - only eth2 (MAC3) is active via SGMII */
+&cp0_ethernet {
+	status = "okay";
+};
+
+&cp0_eth2 {
+	status = "okay";
+	phy = <&nbx_phy0>;
+	phy-mode = "sgmii";
+};
+
+/* CP0 UTMI PHY for USB */
+&cp0_utmi {
+	status = "okay";
+};
+
+&cp0_utmi0 {
+	status = "okay";
+};
+
+&cp0_utmi1 {
+	status = "okay";
+};
+
+/* CP0 USB3 Host controllers */
+&cp0_usb3_0 {
+	status = "okay";
+};
+
+&cp0_usb3_1 {
+	status = "okay";
+};
+
+/* CP1 pinctrl */
+&cp1_pinctl {
+	/*
+	 * MPP Bus:
+	 * [0-26]  = Unconfigured
+	 * [27-28] GE_MDIO/MDC
+	 * [29-30] MSS I2C
+	 * [31]    = Unconfigured
+	 * [32-62] = 0xff: Keep default CP1_shared_pins
+	 */
+		/*   0    1    2    3    4    5    6    7    8    9 */
+	pin-func = < 0x0  0x0  0x0  0x0  0x0  0x0  0x0  0x0  0x0  0x0
+		     0x0  0x0  0x0  0x0  0x0  0x0  0x0  0x0  0x0  0x0
+		     0x0  0x0  0x0  0x0  0x0  0x0  0x0  0x8  0x8  0x8
+		     0x8  0x0  0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
+		     0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
+		     0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff
+		     0xff 0xff 0xff>;
+
+	cp1_mss_i2c_pins: cp1-mss-i2c-pins {
+		marvell,pins = <29 30>;
+		marvell,function = <8>;
+	};
+};
+
+/* CP1 MSS I2C0 - Management SubSystem I2C (pins 29-30, func 8) */
+&cp1_mss_i2c0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&cp1_mss_i2c_pins>;
+};
+
+/* CP1 ComPhy - SerDes configuration */
+&cp1_comphy {
+	/*
+	 * CP1 Serdes Configuration:
+	 * Lane 0:   PCIe x1
+	 * Lane 1:   USB3 Host
+	 * Lane 2-3: Unconnected
+	 * Lane 4:   SFI (10G Ethernet)
+	 * Lane 5:   Unconnected
+	 */
+	phy0 {
+		phy-type = <COMPHY_TYPE_PEX0>;
+	};
+	phy1 {
+		phy-type = <COMPHY_TYPE_USB3_HOST0>;
+	};
+	phy2 {
+		phy-type = <COMPHY_TYPE_UNCONNECTED>;
+	};
+	phy3 {
+		phy-type = <COMPHY_TYPE_UNCONNECTED>;
+	};
+	phy4 {
+		phy-type = <COMPHY_TYPE_SFI0>;
+		phy-speed = <COMPHY_SPEED_10_3125G>;
+	};
+	phy5 {
+		phy-type = <COMPHY_TYPE_UNCONNECTED>;
+	};
+};
+
+/* CP1 PCIe x1 on lane 0 */
+&cp1_pcie0 {
+	status = "okay";
+};
+
+/* CP1 USB3 Host on lane 1 */
+&cp1_usb3_0 {
+	status = "okay";
+};
+
+/* CP1 UTMI PHY for USB */
+&cp1_utmi {
+	status = "okay";
+};
+
+&cp1_utmi0 {
+	status = "okay";
+};
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig
index 0b4df8e7be9..3465ccfc151 100644
--- a/arch/arm/mach-mvebu/Kconfig
+++ b/arch/arm/mach-mvebu/Kconfig
@@ -166,6 +166,14 @@ config TARGET_MVEBU_ARMADA_8K
 	select BOARD_LATE_INIT
 	imply SCSI
 
+config TARGET_NBX10G
+	bool "Support Freebox Nodebox 10G"
+	select ARMADA_8K
+	select BOARD_LATE_INIT
+	help
+	  Enable support for the Freebox Nodebox 10G board based on the
+	  Marvell Armada 8040 SoC with dual CP110 companion chips.
+
 config TARGET_MVEBU_ALLEYCAT5
 	bool "Support AlleyCat 5 platforms"
 	select ALLEYCAT_5
@@ -515,5 +523,6 @@ config ARMADA_32BIT_SYSCON_SYSRESET
 
 source "board/solidrun/clearfog/Kconfig"
 source "board/kobol/helios4/Kconfig"
+source "board/freebox/nbx10g/Kconfig"
 
 endif