board: rockchip: add Radxa ROCK 3 Model C

Based on rock-3a-rk3568_defconfig.
Tested on v1.31 revision.

Board Specifications:
- Rockchip RK3566
- 1/2/4GB LPDDR4 2112MT/s
- eMMC socket
- uSD card slot
- M.2 2230 Connector
- GbE LAN with POE
- 3.5mm jack with mic
- HDMI 2.0, MIPI DSI/CSI
- USB 3.0 Host, USB 2.0 Host/OTG
- 40-pin GPIO expansion ports

Signed-off-by: Maxim Moskalets <maximmosk4@gmail.com>
Suggested-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Jonas Karlman <jonas@kwiboo.se>
Tested-by: FUKAUMI Naoki <naoki@radxa.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

arch/arm/dts/rk3566-rock-3c-u-boot.dtsi

@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+#include "rk356x-u-boot.dtsi"
+
+&sfc {
+	flash@0 {
+		bootph-pre-ram;
+		bootph-some-ram;
+	};
+};
+
+/ {
+	leds {
+		led-0 {
+			default-state = "on";
+		};
+	};
+};

board/rockchip/evb_rk3568/MAINTAINERS

@@ -69,3 +69,10 @@ S:	Maintained
 F:	configs/rock-3a-rk3568_defconfig
 F:	arch/arm/dts/rk3568-rock-3a.dts
 F:	arch/arm/dts/rk3568-rock-3a-u-boot.dtsi
+
+ROCK-3C
+M:	Jonas Karlman <jonas@kwiboo.se>
+M:	Maxim Moskalets <maximmosk4@gmail.com>
+S:	Maintained
+F:	arch/arm/dts/rk3566-rock-3c-u-boot.dtsi
+F:	configs/rock-3c-rk3566_defconfig

configs/rock-3c-rk3566_defconfig

@@ -0,0 +1,97 @@
+CONFIG_ARM=y
+CONFIG_SKIP_LOWLEVEL_INIT=y
+CONFIG_COUNTER_FREQUENCY=24000000
+CONFIG_ARCH_ROCKCHIP=y
+CONFIG_SF_DEFAULT_SPEED=24000000
+CONFIG_SF_DEFAULT_MODE=0x2000
+CONFIG_DEFAULT_DEVICE_TREE="rockchip/rk3566-rock-3c"
+CONFIG_ROCKCHIP_RK3568=y
+CONFIG_ROCKCHIP_SPI_IMAGE=y
+CONFIG_SPL_SERIAL=y
+CONFIG_DEBUG_UART_BASE=0xFE660000
+CONFIG_DEBUG_UART_CLOCK=24000000
+CONFIG_SPL_SPI_FLASH_SUPPORT=y
+CONFIG_SPL_SPI=y
+CONFIG_SYS_LOAD_ADDR=0xc00800
+CONFIG_PCI=y
+CONFIG_DEBUG_UART=y
+CONFIG_AHCI=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/rk3566-rock-3c.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_SPI_LOAD=y
+CONFIG_SYS_SPI_U_BOOT_OFFS=0x60000
+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_POWEROFF=y
+CONFIG_CMD_USB=y
+# CONFIG_CMD_SETEXPR is not set
+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_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_SPL_DM_SEQ_ALIAS=y
+CONFIG_SPL_REGMAP=y
+CONFIG_SPL_SYSCON=y
+CONFIG_SCSI_AHCI=y
+CONFIG_AHCI_PCI=y
+CONFIG_SPL_CLK=y
+CONFIG_ROCKCHIP_GPIO=y
+CONFIG_SYS_I2C_ROCKCHIP=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=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_SF_DEFAULT_BUS=4
+CONFIG_SPI_FLASH_SFDP_SUPPORT=y
+CONFIG_SPI_FLASH_GIGADEVICE=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_SPI_FLASH_XTX=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_SPL_PINCTRL=y
+CONFIG_DM_PMIC=y
+CONFIG_PMIC_RK8XX=y
+CONFIG_REGULATOR_RK8XX=y
+CONFIG_SPL_RAM=y
+CONFIG_SCSI=y
+CONFIG_BAUDRATE=1500000
+CONFIG_DEBUG_UART_SHIFT=2
+CONFIG_SYS_NS16550_MEM32=y
+CONFIG_ROCKCHIP_SFC=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_ERRNO_STR=y

doc/board/rockchip/rockchip.rst

@@ -106,6 +106,7 @@ List of mainline supported Rockchip boards:
      - Pine64 SOQuartz on Model A (soquartz-model-a-rk3566)
      - Powkiddy X55 (powkiddy-x55-rk3566)
      - Radxa CM3 IO Board (radxa-cm3-io-rk3566)
+     - Radxa ROCK 3C (rock-3c-rk3566)
 
 * rk3568
      - Rockchip Evb-RK3568 (evb-rk3568)