uboot-rockchip: add Fastrhino R66S support

Add support for the Lunzn FastRhino R66S board.

Tested-by: Francisco G Luna <[email protected]>
Signed-off-by: Tianling Shen <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/19990
(cherry picked from commit 678536740ed58495e654f638f77decb8af18d768)
[rebase patches upon 24.10 branch]
Signed-off-by: Tianling Shen <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/20618
Signed-off-by: Hauke Mehrtens <[email protected]>

package/boot/uboot-rockchip/Makefile

@@ -219,6 +219,13 @@ define U-Boot/bpi-r2-pro-rk3568
     sinovoip_bpi-r2-pro
 endef
 
+define U-Boot/fastrhino-r66s-rk3568
+  $(U-Boot/rk3568/Default)
+  NAME:=FastRhino R66S
+  BUILD_DEVICES:= \
+    lunzn_fastrhino-r66s
+endef
+
 define U-Boot/nanopi-r5c-rk3568
   $(U-Boot/rk3568/Default)
   NAME:=NanoPi R5C
@@ -333,6 +340,7 @@ UBOOT_TARGETS := \
   radxa-zero-3-rk3566 \
   rock-3c-rk3566 \
   bpi-r2-pro-rk3568 \
+  fastrhino-r66s-rk3568 \
   nanopi-r5c-rk3568 \
   nanopi-r5s-rk3568 \
   radxa-e25-rk3568 \

package/boot/uboot-rockchip/patches/003-board-rockchip-add-Lunzn-FastRhino-R66S.patch

@@ -0,0 +1,132 @@
+From 37a5383059d0c3d8a72394cbffef775042a40acd Mon Sep 17 00:00:00 2001
+From: Tianling Shen <[email protected]>
+Date: Mon, 8 Sep 2025 19:32:18 +0800
+Subject: [PATCH] board: rockchip: add Lunzn FastRhino R66S
+
+Lunzn Fastrhino R66S is a high-performance mini router.
+
+Specification:
+- Rockchip RK3568
+- 1/2GB LPDDR4 RAM
+- SD card slot
+- 2x USB 3.0 Port
+- 2x 2500 Base-T (PCIe, r8125b)
+- 12v DC Jack
+
+Signed-off-by: Tianling Shen <[email protected]>
+Reviewed-by: Kever Yang <[email protected]>
+---
+ .../arm/dts/rk3568-fastrhino-r66s-u-boot.dtsi |  3 +
+ board/rockchip/evb_rk3568/MAINTAINERS         |  7 ++
+ configs/fastrhino-r66s-rk3568_defconfig       | 64 +++++++++++++++++++
+ doc/board/rockchip/rockchip.rst               |  1 +
+ 4 files changed, 75 insertions(+)
+ create mode 100644 arch/arm/dts/rk3568-fastrhino-r66s-u-boot.dtsi
+ create mode 100644 configs/fastrhino-r66s-rk3568_defconfig
+
+--- /dev/null
++++ b/arch/arm/dts/rk3568-fastrhino-r66s-u-boot.dtsi
+@@ -0,0 +1,9 @@
++// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
++
++#include "rk356x-u-boot.dtsi"
++
++/ {
++	chosen {
++		stdout-path = &uart2;
++	};
++};
+--- a/board/rockchip/evb_rk3568/MAINTAINERS
++++ b/board/rockchip/evb_rk3568/MAINTAINERS
+@@ -14,6 +14,13 @@ F:	configs/evb-rk3568_defconfig
+ F:	arch/arm/dts/rk3568-evb-u-boot.dtsi
+ F:	arch/arm/dts/rk3568-evb.dts
+ 
++FASTRHINO-R66S-RK3568
++M:	Tianling Shen <[email protected]>
++R:	Jonas Karlman <[email protected]>
++S:	Maintained
++F:	configs/fastrhino-r66s-rk3568_defconfig
++F:	arch/arm/dts/rk3568-fastrhino-r66s-u-boot.dtsi
++
+ GENERIC-RK3568
+ M:	Jonas Karlman <[email protected]>
+ S:	Maintained
+--- /dev/null
++++ b/configs/fastrhino-r66s-rk3568_defconfig
+@@ -0,0 +1,65 @@
++CONFIG_ARM=y
++CONFIG_SKIP_LOWLEVEL_INIT=y
++CONFIG_SYS_HAS_NONCACHED_MEMORY=y
++CONFIG_COUNTER_FREQUENCY=24000000
++CONFIG_ARCH_ROCKCHIP=y
++CONFIG_DEFAULT_DEVICE_TREE="rockchip/rk3568-fastrhino-r66s"
++CONFIG_ROCKCHIP_RK3568=y
++CONFIG_SPL_SERIAL=y
++CONFIG_DEBUG_UART_BASE=0xFE660000
++CONFIG_DEBUG_UART_CLOCK=24000000
++CONFIG_SYS_LOAD_ADDR=0xc00800
++CONFIG_PCI=y
++CONFIG_DEBUG_UART=y
++CONFIG_FIT=y
++CONFIG_FIT_VERBOSE=y
++CONFIG_SPL_FIT_SIGNATURE=y
++CONFIG_SPL_LOAD_FIT=y
++CONFIG_LEGACY_IMAGE_FORMAT=y
++CONFIG_DEFAULT_FDT_FILE="rockchip/rk3568-fastrhino-r66s.dtb"
++# CONFIG_DISPLAY_CPUINFO is not set
++CONFIG_DISPLAY_BOARDINFO_LATE=y
++CONFIG_SPL_MAX_SIZE=0x40000
++CONFIG_SPL_PAD_TO=0x7f8000
++# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
++CONFIG_SPL_ATF=y
++CONFIG_CMD_GPIO=y
++CONFIG_CMD_GPT=y
++CONFIG_CMD_I2C=y
++CONFIG_CMD_MMC=y
++CONFIG_CMD_PCI=y
++CONFIG_CMD_USB=y
++CONFIG_CMD_PMIC=y
++CONFIG_CMD_REGULATOR=y
++# CONFIG_SPL_DOS_PARTITION is not set
++CONFIG_SPL_OF_CONTROL=y
++CONFIG_OF_LIVE=y
++CONFIG_OF_SPL_REMOVE_PROPS="clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
++CONFIG_SPL_DM_SEQ_ALIAS=y
++CONFIG_SPL_REGMAP=y
++CONFIG_SPL_SYSCON=y
++CONFIG_SPL_CLK=y
++CONFIG_ROCKCHIP_GPIO=y
++CONFIG_SYS_I2C_ROCKCHIP=y
++CONFIG_MISC=y
++CONFIG_MMC_DW=y
++CONFIG_MMC_DW_ROCKCHIP=y
++CONFIG_RTL8169=y
++CONFIG_PCIE_DW_ROCKCHIP=y
++CONFIG_PHY_ROCKCHIP_INNO_USB2=y
++CONFIG_PHY_ROCKCHIP_NANENG_COMBOPHY=y
++CONFIG_SPL_PINCTRL=y
++CONFIG_DM_PMIC=y
++CONFIG_PMIC_RK8XX=y
++CONFIG_REGULATOR_RK8XX=y
++CONFIG_PWM_ROCKCHIP=y
++CONFIG_SPL_RAM=y
++CONFIG_BAUDRATE=1500000
++CONFIG_DEBUG_UART_SHIFT=2
++CONFIG_SYS_NS16550_MEM32=y
++CONFIG_SYSRESET=y
++CONFIG_USB=y
++CONFIG_USB_XHCI_HCD=y
++CONFIG_USB_DWC3=y
++CONFIG_USB_DWC3_GENERIC=y
++CONFIG_ERRNO_STR=y
+--- a/doc/board/rockchip/rockchip.rst
++++ b/doc/board/rockchip/rockchip.rst
+@@ -118,6 +118,7 @@ List of mainline supported Rockchip boar
+      - FriendlyElec NanoPi R5S (nanopi-r5s-rk3568)
+      - Generic RK3566/RK3568 (generic-rk3568)
+      - Hardkernel ODROID-M1 (odroid-m1-rk3568)
++     - Lunzn FastRhino R66S (fastrhino-r66s-rk3568)
+      - Radxa E25 Carrier Board (radxa-e25-rk3568)
+      - Radxa ROCK 3A (rock-3a-rk3568)
+      - Radxa ROCK 3B (rock-3b-rk3568)