board: rockchip: Add FriendlyElec NanoPi R6C

The NanoPi R6C is a SBC by FriendlyElec based on the Rockchip RK3588s.
It comes with 4GB or 8GB of RAM, a microSD card slot, optional 32GB eMMC
storage, one M.2 M-Key connector, one RTL8211F 1GbE and one RTL8125
2.5GbE Ethernet port, one USB 2.0 Type-A and one USB 3.0 Type-A port, a
HDMI port, a 30-pin GPIO header as well as multiple buttons and LEDs.

Add initial support for this board using the upstream devicetree sources.

Tested in U-Boot proper:
- Booting from eMMC works
- 1GbE Ethernet works using the eth_eqos driver (tested by ping)
- 2.5GbE Ethernet works using the eth_rtl8169 driver (tested by ping),
  but the status LEDs on this specific port currently aren't working
- NVMe SSD in M.2 socket does get recognized (tested with `nvme scan`
  followed by `nvme details`)

Kernel commit:
d5f1d7437451 ("arm64: dts: rockchip: Add support for NanoPi R6C")

Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Sebastian Kropatsch <seb-dev@mail.de>

arch/arm/dts/rk3588s-nanopi-r6c-u-boot.dtsi

@@ -0,0 +1,3 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+#include "rk3588s-u-boot.dtsi"

arch/arm/mach-rockchip/rk3588/Kconfig

@@ -78,6 +78,18 @@ config TARGET_NANOPCT6_RK3588
 	  Power: 5.5*2.1mm DC Jack, 12VDC input
 	  Dimensions: 110x80x1.6mm (without case) / 86x114.5x30mm (with case)
 
+config TARGET_NANOPI_R6C_RK3588S
+	bool "FriendlyElec NanoPi R6C"
+	select BOARD_LATE_INIT
+	help
+	  The NanoPi R6C is a SBC by FriendlyElec based on the Rockchip
+	  RK3588s.
+	  It comes with 4GB or 8GB of RAM, a microSD card slot, optional 32GB
+	  eMMC storage, one M.2 M-Key connector, one RTL8211F 1GbE and one
+	  RTL8125 2.5GbE Ethernet port, one USB 2.0 Type-A and one USB 3.0
+	  Type-A port, a HDMI port, a 30-pin GPIO header as well as some
+	  buttons and LEDs.
+
 config TARGET_NOVA_RK3588
 	bool "Indiedroid Nova RK3588"
 	select BOARD_LATE_INIT
@@ -288,6 +300,7 @@ config TEXT_BASE
 source "board/armsom/sige7-rk3588/Kconfig"
 source "board/edgeble/neural-compute-module-6/Kconfig"
 source "board/friendlyelec/nanopc-t6-rk3588/Kconfig"
+source "board/friendlyelec/nanopi-r6c-rk3588s/Kconfig"
 source "board/indiedroid/nova/Kconfig"
 source "board/pine64/quartzpro64-rk3588/Kconfig"
 source "board/turing/turing-rk1-rk3588/Kconfig"

board/friendlyelec/nanopi-r6c-rk3588s/Kconfig

@@ -0,0 +1,12 @@
+if TARGET_NANOPI_R6C_RK3588S
+
+config SYS_BOARD
+	default "nanopi-r6c-rk3588s"
+
+config SYS_VENDOR
+	default "friendlyelec"
+
+config SYS_CONFIG_NAME
+	default "nanopi-r6c-rk3588s"
+
+endif

board/friendlyelec/nanopi-r6c-rk3588s/MAINTAINERS

@@ -0,0 +1,7 @@
+NANOPI-R6C
+M:	Sebastian Kropatsch <seb-dev@mail.de>
+S:	Maintained
+F:	arch/arm/dts/rk3588s-nanopi-r6c-u-boot.dtsi
+F:	board/friendlyelec/nanopi-r6c-rk3588s
+F:	configs/nanopi-r6c-rk3588s_defconfig
+F:	include/configs/nanopi-r6c-rk3588s.h

configs/nanopi-r6c-rk3588s_defconfig

@@ -0,0 +1,83 @@
+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/rk3588s-nanopi-r6c"
+CONFIG_ROCKCHIP_RK3588=y
+CONFIG_SPL_SERIAL=y
+CONFIG_TARGET_NANOPI_R6C_RK3588S=y
+CONFIG_DEBUG_UART_BASE=0xFEB50000
+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/rk3588s-nanopi-r6c.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_PWM=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PCI=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_ROCKUSB=y
+# CONFIG_CMD_SETEXPR is not set
+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_USB_FUNCTION_FASTBOOT is not set
+CONFIG_ROCKCHIP_GPIO=y
+CONFIG_SYS_I2C_ROCKCHIP=y
+CONFIG_MISC=y
+CONFIG_SUPPORT_EMMC_RPMB=y
+CONFIG_MMC_DW=y
+CONFIG_MMC_DW_ROCKCHIP=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_SDMA=y
+CONFIG_MMC_SDHCI_ROCKCHIP=y
+# CONFIG_SPI_FLASH is not set
+CONFIG_PHY_REALTEK=y
+CONFIG_DWC_ETH_QOS=y
+CONFIG_DWC_ETH_QOS_ROCKCHIP=y
+CONFIG_RTL8169=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_SPL_PINCTRL=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_EHCI_HCD=y
+CONFIG_USB_EHCI_GENERIC=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_GENERIC=y
+CONFIG_USB_DWC3=y
+CONFIG_USB_DWC3_GENERIC=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_USB_FUNCTION_ROCKUSB=y
+CONFIG_ERRNO_STR=y

doc/board/rockchip/rockchip.rst

@@ -123,6 +123,7 @@ List of mainline supported Rockchip boards:
      - Edgeble Neural Compute Module 6A SoM - Neu6a (neu6a-io-rk3588)
      - Edgeble Neural Compute Module 6B SoM - Neu6b (neu6b-io-rk3588)
      - FriendlyElec NanoPC-T6 (nanopc-t6-rk3588)
+     - FriendlyElec NanoPi R6C (nanopi-r6c-rk3588s)
      - Generic RK3588S/RK3588 (generic-rk3588)
      - Indiedroid Nova (nova-rk3588s)
      - Pine64 QuartzPro64 (quartzpro64-rk3588)

include/configs/nanopi-r6c-rk3588s.h

@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef __NANOPI_R6C_RK3588S_H
+#define __NANOPI_R6C_RK3588S_H
+
+#define ROCKCHIP_DEVICE_SETTINGS \
+		"stdout=serial,vidconsole\0" \
+		"stderr=serial,vidconsole\0"
+
+#include <configs/rk3588_common.h>
+
+#endif /* __NANOPI_R6C_RK3588S_H */