board: rockchip: Add Radxa ROCK 4D

The Radxa ROCK 4D is a compact single-board computer (SBC) featuring
numerous top-tier functions, features, and expansion options.

Equipped with the Rockchip RK3576 or RK3576J SoC, the ROCK 4D boasts an
octa-core CPU (4x Cortex-A72 + 4x Cortex-A53), Mali-G52 GPU, and a
powerful 6 TOPS NPU, making it ideal for AI and multimedia tasks.

Features tested on a Radxa ROCK 4D v1.112:
- SPI Flash boot
- Ethernet
- PCIe/NVMe
- USB host

ROCK 4D boards with SPI Flash is configured to boot from FSPI0->UFS->USB,
or directly from USB when the MASKROM button is pressed, booting
directly from SD-card is not possible on these boards.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

arch/arm/dts/rk3576-rock-4d-u-boot.dtsi

@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+#include "rk3576-u-boot.dtsi"
+
+&sfc0 {
+	flash@0 {
+		bootph-pre-ram;
+		bootph-some-ram;
+	};
+};

arch/arm/mach-rockchip/rk3576/MAINTAINERS

@@ -4,6 +4,12 @@ S:	Maintained
 F:	arch/arm/dts/rk3576-generic*
 F:	configs/generic-rk3576_defconfig
 
+ROCK-4D-RK3576
+M:	Jonas Karlman <jonas@kwiboo.se>
+S:	Maintained
+F:	arch/arm/dts/rk3576-rock-4d*
+F:	configs/rock-4d-rk3576_defconfig
+
 SIGE5-RK3576
 M:	Jonas Karlman <jonas@kwiboo.se>
 S:	Maintained

configs/rock-4d-rk3576_defconfig

@@ -0,0 +1,68 @@
+CONFIG_ARM=y
+CONFIG_SKIP_LOWLEVEL_INIT=y
+CONFIG_COUNTER_FREQUENCY=24000000
+CONFIG_ARCH_ROCKCHIP=y
+CONFIG_SF_DEFAULT_SPEED=50000000
+CONFIG_SF_DEFAULT_MODE=0x2000
+CONFIG_DEFAULT_DEVICE_TREE="rockchip/rk3576-rock-4d"
+CONFIG_ROCKCHIP_RK3576=y
+CONFIG_ROCKCHIP_SPI_IMAGE=y
+CONFIG_SYS_LOAD_ADDR=0x40c00800
+CONFIG_SF_DEFAULT_BUS=5
+CONFIG_DEBUG_UART_BASE=0x2AD40000
+CONFIG_DEBUG_UART_CLOCK=24000000
+CONFIG_SPL_SPI_FLASH_SUPPORT=y
+CONFIG_SPL_SPI=y
+CONFIG_PCI=y
+CONFIG_DEBUG_UART=y
+CONFIG_DEFAULT_FDT_FILE="rockchip/rk3576-rock-4d.dtb"
+# CONFIG_DISPLAY_CPUINFO is not set
+CONFIG_SPL_MAX_SIZE=0x40000
+# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
+CONFIG_SPL_SPI_LOAD=y
+CONFIG_SYS_SPI_U_BOOT_OFFS=0x60000
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_MEMINFO_MAP=y
+CONFIG_CMD_ADC=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_MISC=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PCI=y
+CONFIG_CMD_USB=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_RNG=y
+CONFIG_CMD_REGULATOR=y
+# CONFIG_SPL_DOS_PARTITION is not set
+CONFIG_OF_SPL_REMOVE_PROPS="clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
+CONFIG_ROCKCHIP_GPIO=y
+CONFIG_SYS_I2C_ROCKCHIP=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
+CONFIG_SUPPORT_EMMC_RPMB=y
+CONFIG_MMC_DW=y
+CONFIG_MMC_DW_ROCKCHIP=y
+CONFIG_SPI_FLASH_SFDP_SUPPORT=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_PHY_REALTEK=y
+CONFIG_DWC_ETH_QOS=y
+CONFIG_DWC_ETH_QOS_ROCKCHIP=y
+CONFIG_NVME_PCI=y
+CONFIG_PCIE_DW_ROCKCHIP=y
+CONFIG_PHY_ROCKCHIP_INNO_USB2=y
+CONFIG_PHY_ROCKCHIP_NANENG_COMBOPHY=y
+CONFIG_PHY_ROCKCHIP_USBDP=y
+CONFIG_DM_PMIC=y
+CONFIG_PMIC_RK8XX=y
+CONFIG_REGULATOR_RK8XX=y
+CONFIG_BAUDRATE=1500000
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_SYS_NS16550_MEM32=y
+CONFIG_ROCKCHIP_SFC=y
+CONFIG_SYSRESET_PSCI=y
+CONFIG_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_DWC3=y
+CONFIG_USB_DWC3_GENERIC=y
+CONFIG_ERRNO_STR=y

doc/board/rockchip/rockchip.rst

@@ -137,6 +137,7 @@ List of mainline supported Rockchip boards:
      - ArmSoM Sige5 (sige5-rk3576)
      - Firefly ROC-RK3576-PC (roc-pc-rk3576)
      - Generic RK3576 (generic-rk3576)
+     - Radxa ROCK 4D (rock-4d-rk3576)
 
 * rk3588
      - ArmSoM Sige7 (sige7-rk3588)