]> git.ipfire.org Git - thirdparty/openwrt.git/commitdiff
uboot-rockchip: add Radxa ROCK 4D support
authorTianling Shen <cnsztl@immortalwrt.org>
Sat, 13 Sep 2025 11:49:36 +0000 (19:49 +0800)
committerHauke Mehrtens <hauke@hauke-m.de>
Thu, 2 Oct 2025 20:42:35 +0000 (22:42 +0200)
Add support for the Radxa ROCK 4D board.

Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
Link: https://github.com/openwrt/openwrt/pull/20041
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
package/boot/uboot-rockchip/Makefile
package/boot/uboot-rockchip/patches/105-spi-rockchip_sfc-Support-sclk_x2-version.patch [new file with mode: 0644]
package/boot/uboot-rockchip/patches/106-rockchip-spl-Add-a-read_brom_bootsource_id-helper.patch [new file with mode: 0644]
package/boot/uboot-rockchip/patches/107-rockchip-rk3576-Add-SPI-Flash-boot-support.patch [new file with mode: 0644]
package/boot/uboot-rockchip/patches/108-board-rockchip-Add-Radxa-ROCK-4D.patch [new file with mode: 0644]

index c7a4f941b856af67544473e9d5b7aa1539f29958..36bb78d0f64ff9ff3f7aeaa32a818e49205473cc 100644 (file)
@@ -264,6 +264,25 @@ define U-Boot/rock-3b-rk3568
 endef
 
 
+# RK3576 boards
+
+define U-Boot/rk3576/Default
+  BUILD_SUBTARGET:=armv8
+  DEPENDS:= \
+       +PACKAGE_u-boot-$(1):trusted-firmware-a-rk3576 \
+       +PACKAGE_u-boot-$(1):trusted-firmware-a-rk3576-tpl
+  ATF:=rk3576_bl31.elf
+  TPL:=rk3576_ddr_lp4_2112MHz_lp5_2736MHz_v1.09.bin
+endef
+
+define U-Boot/rock-4d-rk3576
+  $(U-Boot/rk3576/Default)
+  NAME:=ROCK 4D
+  BUILD_DEVICES:= \
+    radxa_rock-4d
+endef
+
+
 # RK358x boards
 
 define U-Boot/rk358x/Default
@@ -373,6 +392,7 @@ UBOOT_TARGETS := \
   radxa-e25-rk3568 \
   rock-3a-rk3568 \
   rock-3b-rk3568 \
+  rock-4d-rk3576 \
   generic-rk3588 \
   nanopc-t6-rk3588 \
   rock-5-itx-rk3588 \
diff --git a/package/boot/uboot-rockchip/patches/105-spi-rockchip_sfc-Support-sclk_x2-version.patch b/package/boot/uboot-rockchip/patches/105-spi-rockchip_sfc-Support-sclk_x2-version.patch
new file mode 100644 (file)
index 0000000..a1fafb2
--- /dev/null
@@ -0,0 +1,64 @@
+From: Jonas Karlman <jonas@kwiboo.se>
+To: Kever Yang <kever.yang@rock-chips.com>,
+       Simon Glass <sjg@chromium.org>,
+       Philipp Tomsich <philipp.tomsich@vrull.eu>,
+       Tom Rini <trini@konsulko.com>,
+       Jagan Teki <jagan@amarulasolutions.com>
+Cc: Quentin Schulz <quentin.schulz@cherry.de>,
+       u-boot@lists.denx.de, Jonas Karlman <jonas@kwiboo.se>,
+       Jon Lin <jon.lin@rock-chips.com>
+Subject: [PATCH v3 01/10] spi: rockchip_sfc: Support sclk_x2 version
+Date: Sun, 31 Aug 2025 11:20:22 +0000  [thread overview]
+Message-ID: <20250831112046.2642363-2-jonas@kwiboo.se> (raw)
+In-Reply-To: <20250831112046.2642363-1-jonas@kwiboo.se>
+
+From: Jon Lin <jon.lin@rock-chips.com>
+
+SFC after version 8 supports dtr mode, so the IO is the binary output of
+the controller clock.
+
+Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
+Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
+---
+v3: No change
+v2: No change
+---
+ drivers/spi/rockchip_sfc.c | 13 ++++++++++++-
+ 1 file changed, 12 insertions(+), 1 deletion(-)
+
+--- a/drivers/spi/rockchip_sfc.c
++++ b/drivers/spi/rockchip_sfc.c
+@@ -108,6 +108,7 @@
+ #define  SFC_VER_3                    0x3
+ #define  SFC_VER_4                    0x4
+ #define  SFC_VER_5                    0x5
++#define  SFC_VER_8                    0x8
+ /* Delay line controller resiter */
+ #define SFC_DLL_CTRL0                 0x3C
+@@ -589,6 +590,16 @@ static int rockchip_sfc_adjust_op_size(s
+       return 0;
+ }
++#if CONFIG_IS_ENABLED(CLK)
++static int rockchip_sfc_clk_set_rate(struct rockchip_sfc *sfc, uint speed)
++{
++      if (sfc->version >= SFC_VER_8)
++              return clk_set_rate(&sfc->clk, speed * 2);
++      else
++              return clk_set_rate(&sfc->clk, speed);
++}
++#endif
++
+ static int rockchip_sfc_set_speed(struct udevice *bus, uint speed)
+ {
+       struct rockchip_sfc *sfc = dev_get_plat(bus);
+@@ -600,7 +611,7 @@ static int rockchip_sfc_set_speed(struct
+               return 0;
+ #if CONFIG_IS_ENABLED(CLK)
+-      int ret = clk_set_rate(&sfc->clk, speed);
++      int ret = rockchip_sfc_clk_set_rate(sfc, speed);
+       if (ret < 0) {
+               dev_err(sfc->dev, "set_freq=%dHz fail, check if it's the cru support level\n",
diff --git a/package/boot/uboot-rockchip/patches/106-rockchip-spl-Add-a-read_brom_bootsource_id-helper.patch b/package/boot/uboot-rockchip/patches/106-rockchip-spl-Add-a-read_brom_bootsource_id-helper.patch
new file mode 100644 (file)
index 0000000..39aa334
--- /dev/null
@@ -0,0 +1,65 @@
+From: Jonas Karlman <jonas@kwiboo.se>
+To: Kever Yang <kever.yang@rock-chips.com>,
+       Simon Glass <sjg@chromium.org>,
+       Philipp Tomsich <philipp.tomsich@vrull.eu>,
+       Tom Rini <trini@konsulko.com>
+Cc: Quentin Schulz <quentin.schulz@cherry.de>,
+       u-boot@lists.denx.de, Jonas Karlman <jonas@kwiboo.se>
+Subject: [PATCH v3 02/10] rockchip: spl: Add a read_brom_bootsource_id() helper
+Date: Sun, 31 Aug 2025 11:20:23 +0000  [thread overview]
+Message-ID: <20250831112046.2642363-3-jonas@kwiboo.se> (raw)
+In-Reply-To: <20250831112046.2642363-1-jonas@kwiboo.se>
+
+The bootsource ids reported by BootROM of RK3528 and RK3576 for e.g.
+SPI NOR and USB differs slightly compared to prior SoCs:
+
+- Booting from sfc0 (ROCK 4D) report the normal bootsource id 0x3.
+- Booting from sfc1 M1 (NanoPi M5) report a new bootsource id 0x23.
+- Booting from sfc1 M0 has not been tested (no board using this config).
+- Booting from USB report a new bootsource id 0x81 on RK3528 and RK3576.
+
+Add a helper function to read the bootsource id. This helper function
+will be used to translate the new values to the common BROM_BOOTSOURCE
+enum values on RK3528 and RK3576.
+
+Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
+---
+v3: Mention RK3528 in commit message
+v2: No change
+---
+ arch/arm/include/asm/arch-rockchip/bootrom.h | 2 ++
+ arch/arm/mach-rockchip/spl.c                 | 7 ++++++-
+ 2 files changed, 8 insertions(+), 1 deletion(-)
+
+--- a/arch/arm/include/asm/arch-rockchip/bootrom.h
++++ b/arch/arm/include/asm/arch-rockchip/bootrom.h
+@@ -64,4 +64,6 @@ extern const char * const boot_devices[B
+  */
+ #define BROM_BOOTSOURCE_ID_ADDR   (CFG_IRAM_BASE + 0x10)
++u32 read_brom_bootsource_id(void);
++
+ #endif
+--- a/arch/arm/mach-rockchip/spl.c
++++ b/arch/arm/mach-rockchip/spl.c
+@@ -31,6 +31,11 @@ int board_return_to_bootrom(struct spl_i
+ __weak const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
+ };
++__weak u32 read_brom_bootsource_id(void)
++{
++      return readl(BROM_BOOTSOURCE_ID_ADDR);
++}
++
+ const char *board_spl_was_booted_from(void)
+ {
+       static u32 brom_bootsource_id_cache = BROM_BOOTSOURCE_UNKNOWN;
+@@ -40,7 +45,7 @@ const char *board_spl_was_booted_from(vo
+       if (brom_bootsource_id_cache != BROM_BOOTSOURCE_UNKNOWN)
+               bootdevice_brom_id = brom_bootsource_id_cache;
+       else
+-              bootdevice_brom_id = readl(BROM_BOOTSOURCE_ID_ADDR);
++              bootdevice_brom_id = read_brom_bootsource_id();
+       if (bootdevice_brom_id < ARRAY_SIZE(boot_devices))
+               bootdevice_ofpath = boot_devices[bootdevice_brom_id];
diff --git a/package/boot/uboot-rockchip/patches/107-rockchip-rk3576-Add-SPI-Flash-boot-support.patch b/package/boot/uboot-rockchip/patches/107-rockchip-rk3576-Add-SPI-Flash-boot-support.patch
new file mode 100644 (file)
index 0000000..030c794
--- /dev/null
@@ -0,0 +1,156 @@
+From: Jonas Karlman <jonas@kwiboo.se>
+To: Kever Yang <kever.yang@rock-chips.com>,
+       Simon Glass <sjg@chromium.org>,
+       Philipp Tomsich <philipp.tomsich@vrull.eu>,
+       Tom Rini <trini@konsulko.com>
+Cc: Quentin Schulz <quentin.schulz@cherry.de>,
+       u-boot@lists.denx.de, Jonas Karlman <jonas@kwiboo.se>
+Subject: [PATCH v3 04/10] rockchip: rk3576: Add SPI Flash boot support
+Date: Sun, 31 Aug 2025 11:20:25 +0000  [thread overview]
+Message-ID: <20250831112046.2642363-5-jonas@kwiboo.se> (raw)
+In-Reply-To: <20250831112046.2642363-1-jonas@kwiboo.se>
+
+The bootsource ids reported by BootROM of RK3576 for SPI NOR and USB
+differs slightly compared to prior SoCs:
+
+- Booting from sfc0 (ROCK 4D) report the normal bootsource id 0x3.
+- Booting from sfc1 M1 (NanoPi M5) report a new bootsource id 0x23.
+- Booting from sfc1 M0 has not been tested (no board using this config).
+- Booting from USB report a new bootsource id 0x81.
+
+Add a RK3576 specific read_brom_bootsource_id() function to help decode
+the new bootsource id values and the required boot_devices mapping of
+sfc0 and sfc1 to help support booting from SPI flash on RK3576.
+
+Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
+---
+Changes in v3:
+- Add fspi1m1 pinctrl bootph- props to SoC u-boot.dtsi
+- Drop the incomplete support for FSPI1_M0
+- Add a short code comment about the re-mapping of bootsource id
+
+v2: No change
+---
+ arch/arm/dts/rk3576-u-boot.dtsi        | 46 ++++++++++++++++++++++++++
+ arch/arm/mach-rockchip/rk3576/rk3576.c | 25 ++++++++++++++
+ 2 files changed, 71 insertions(+)
+
+--- a/arch/arm/dts/rk3576-u-boot.dtsi
++++ b/arch/arm/dts/rk3576-u-boot.dtsi
+@@ -6,6 +6,11 @@
+ #include "rockchip-u-boot.dtsi"
+ / {
++      aliases {
++              spi5 = &sfc0;
++              spi6 = &sfc1;
++      };
++
+       chosen {
+               u-boot,spl-boot-order = "same-as-spl", &sdmmc, &sdhci;
+       };
+@@ -16,6 +21,17 @@
+       };
+ };
++#ifdef CONFIG_ROCKCHIP_SPI_IMAGE
++&binman {
++      simple-bin-spi {
++              mkimage {
++                      args = "-n", CONFIG_SYS_SOC, "-T", "rksd";
++                      offset = <0x8000>;
++              };
++      };
++};
++#endif
++
+ &cru {
+       bootph-all;
+ };
+@@ -45,6 +61,26 @@
+       bootph-some-ram;
+ };
++&fspi0_csn0 {
++      bootph-pre-ram;
++      bootph-some-ram;
++};
++
++&fspi0_pins {
++      bootph-pre-ram;
++      bootph-some-ram;
++};
++
++&fspi1m1_csn0 {
++      bootph-pre-ram;
++      bootph-some-ram;
++};
++
++&fspi1m1_pins {
++      bootph-pre-ram;
++      bootph-some-ram;
++};
++
+ &ioc_grf {
+       bootph-all;
+ };
+@@ -116,6 +152,16 @@
+       bootph-some-ram;
+ };
++&sfc0 {
++      bootph-some-ram;
++      u-boot,spl-sfc-no-dma;
++};
++
++&sfc1 {
++      bootph-some-ram;
++      u-boot,spl-sfc-no-dma;
++};
++
+ &sys_grf {
+       bootph-all;
+ };
+--- a/arch/arm/mach-rockchip/rk3576/rk3576.c
++++ b/arch/arm/mach-rockchip/rk3576/rk3576.c
+@@ -36,8 +36,15 @@
+ #define USB_GRF_BASE          0x2601E000
+ #define USB3OTG0_CON1         0x0030
++enum {
++      BROM_BOOTSOURCE_FSPI0 = 3,
++      BROM_BOOTSOURCE_FSPI1_M1 = 6,
++};
++
+ const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
+       [BROM_BOOTSOURCE_EMMC] = "/soc/mmc@2a330000",
++      [BROM_BOOTSOURCE_FSPI0] = "/soc/spi@2a340000/flash@0",
++      [BROM_BOOTSOURCE_FSPI1_M1] = "/soc/spi@2a300000/flash@0",
+       [BROM_BOOTSOURCE_SD] = "/soc/mmc@2a310000",
+ };
+@@ -85,6 +92,24 @@ void board_debug_uart_init(void)
+ {
+ }
++u32 read_brom_bootsource_id(void)
++{
++      u32 bootsource_id = readl(BROM_BOOTSOURCE_ID_ADDR);
++
++      /* Re-map the raw value read from reg to a redefined or existing
++       * BROM_BOOTSOURCE enum value to avoid having to create a larger
++       * boot_devices table.
++       */
++      if (bootsource_id == 0x23)
++              return BROM_BOOTSOURCE_FSPI1_M1;
++      else if (bootsource_id == 0x81)
++              return BROM_BOOTSOURCE_USB;
++      else if (bootsource_id > BROM_LAST_BOOTSOURCE)
++              log_debug("Unknown bootsource %x\n", bootsource_id);
++
++      return bootsource_id;
++}
++
+ #define HP_TIMER_BASE                 CONFIG_ROCKCHIP_STIMER_BASE
+ #define HP_CTRL_REG                   0x04
+ #define TIMER_EN                      BIT(0)
diff --git a/package/boot/uboot-rockchip/patches/108-board-rockchip-Add-Radxa-ROCK-4D.patch b/package/boot/uboot-rockchip/patches/108-board-rockchip-Add-Radxa-ROCK-4D.patch
new file mode 100644 (file)
index 0000000..417bdd5
--- /dev/null
@@ -0,0 +1,901 @@
+From: Jonas Karlman <jonas@kwiboo.se>
+To: Kever Yang <kever.yang@rock-chips.com>,
+       Simon Glass <sjg@chromium.org>,
+       Philipp Tomsich <philipp.tomsich@vrull.eu>,
+       Tom Rini <trini@konsulko.com>, Jonas Karlman <jonas@kwiboo.se>
+Cc: Quentin Schulz <quentin.schulz@cherry.de>, u-boot@lists.denx.de
+Subject: [PATCH v3 10/10] board: rockchip: Add Radxa ROCK 4D
+Date: Sun, 31 Aug 2025 11:20:31 +0000  [thread overview]
+Message-ID: <20250831112046.2642363-11-jonas@kwiboo.se> (raw)
+In-Reply-To: <20250831112046.2642363-1-jonas@kwiboo.se>
+
+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>
+---
+v3: Drop the reset-gpios prop rename
+v2: Add comment about the reset-gpios prop rename
+---
+ arch/arm/dts/rk3576-rock-4d-u-boot.dtsi   | 10 ++++
+ arch/arm/mach-rockchip/rk3576/MAINTAINERS |  6 ++
+ configs/rock-4d-rk3576_defconfig          | 68 +++++++++++++++++++++++
+ doc/board/rockchip/rockchip.rst           |  1 +
+ 4 files changed, 85 insertions(+)
+ create mode 100644 arch/arm/dts/rk3576-rock-4d-u-boot.dtsi
+ create mode 100644 configs/rock-4d-rk3576_defconfig
+
+--- /dev/null
++++ b/dts/upstream/src/arm64/rockchip/rk3576-rock-4d.dts
+@@ -0,0 +1,751 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright (c) 2024 Radxa Computer (Shenzhen) Co., Ltd.
++ */
++
++/dts-v1/;
++
++#include <dt-bindings/gpio/gpio.h>
++#include <dt-bindings/leds/common.h>
++#include <dt-bindings/pinctrl/rockchip.h>
++#include <dt-bindings/pwm/pwm.h>
++#include <dt-bindings/soc/rockchip,vop2.h>
++#include <dt-bindings/usb/pd.h>
++#include "rk3576.dtsi"
++
++/ {
++      model = "Radxa ROCK 4D";
++      compatible = "radxa,rock-4d", "rockchip,rk3576";
++
++      aliases {
++              ethernet0 = &gmac0;
++              mmc0 = &sdmmc;
++      };
++
++      chosen {
++              stdout-path = "serial0:1500000n8";
++      };
++
++      hdmi-con {
++              compatible = "hdmi-connector";
++              type = "a";
++
++              port {
++                      hdmi_con_in: endpoint {
++                              remote-endpoint = <&hdmi_out_con>;
++                      };
++              };
++      };
++
++      leds: leds {
++              compatible = "gpio-leds";
++              pinctrl-names = "default";
++              pinctrl-0 = <&led_rgb_g &led_rgb_r>;
++
++              power-led {
++                      color = <LED_COLOR_ID_GREEN>;
++                      function = LED_FUNCTION_STATUS;
++                      gpios = <&gpio0 RK_PB4 GPIO_ACTIVE_HIGH>;
++                      linux,default-trigger = "default-on";
++              };
++
++              user-led {
++                      color = <LED_COLOR_ID_BLUE>;
++                      function = LED_FUNCTION_HEARTBEAT;
++                      gpios = <&gpio0 RK_PC4 GPIO_ACTIVE_LOW>;
++                      linux,default-trigger = "heartbeat";
++              };
++      };
++
++      vcc_12v0_dcin: regulator-vcc-12v0-dcin {
++              compatible = "regulator-fixed";
++              regulator-always-on;
++              regulator-boot-on;
++              regulator-min-microvolt = <12000000>;
++              regulator-max-microvolt = <12000000>;
++              regulator-name = "vcc_12v0_dcin";
++      };
++
++      vcc_1v1_nldo_s3: regulator-vcc-1v1-nldo-s3 {
++              compatible = "regulator-fixed";
++              regulator-always-on;
++              regulator-boot-on;
++              regulator-min-microvolt = <1100000>;
++              regulator-max-microvolt = <1100000>;
++              regulator-name = "vcc_1v1_nldo_s3";
++              vin-supply = <&vcc_5v0_sys>;
++      };
++
++      vcc_1v2_ufs_vccq_s0: regulator-vcc-1v2-ufs-vccq-s0 {
++              compatible = "regulator-fixed";
++              regulator-always-on;
++              regulator-boot-on;
++              regulator-min-microvolt = <1200000>;
++              regulator-max-microvolt = <1200000>;
++              regulator-name = "vcc_1v2_ufs_vccq_s0";
++              vin-supply = <&vcc_5v0_sys>;
++      };
++
++      vcc_1v8_s0: regulator-vcc-1v8-s0 {
++              compatible = "regulator-fixed";
++              regulator-always-on;
++              regulator-boot-on;
++              regulator-min-microvolt = <1800000>;
++              regulator-max-microvolt = <1800000>;
++              regulator-name = "vcc_1v8_s0";
++              vin-supply = <&vcc_1v8_s3>;
++      };
++
++      vcc_1v8_ufs_vccq2_s0: regulator-vcc-1v8-ufs-vccq2-s0 {
++              compatible = "regulator-fixed";
++              regulator-always-on;
++              regulator-boot-on;
++              regulator-min-microvolt = <1800000>;
++              regulator-max-microvolt = <1800000>;
++              regulator-name = "vcc_1v8_ufs_vccq2_s0";
++              vin-supply = <&vcc_1v8_s3>;
++      };
++
++      vcc_2v0_pldo_s3: regulator-vcc-2v0-pldo-s3 {
++              compatible = "regulator-fixed";
++              regulator-always-on;
++              regulator-boot-on;
++              regulator-min-microvolt = <2000000>;
++              regulator-max-microvolt = <2000000>;
++              regulator-name = "vcc_2v0_pldo_s3";
++              vin-supply = <&vcc_5v0_sys>;
++      };
++
++      vcc_3v3_pcie: regulator-vcc-3v3-pcie {
++              compatible = "regulator-fixed";
++              enable-active-high;
++              gpios = <&gpio2 RK_PD3 GPIO_ACTIVE_HIGH>;
++              pinctrl-names = "default";
++              pinctrl-0 = <&pcie_pwren>;
++              regulator-min-microvolt = <3300000>;
++              regulator-max-microvolt = <3300000>;
++              regulator-name = "vcc_3v3_pcie";
++              startup-delay-us = <5000>;
++              vin-supply = <&vcc_5v0_sys>;
++      };
++
++      vcc_3v3_rtc_s5: regulator-vcc-3v3-rtc-s5 {
++              compatible = "regulator-fixed";
++              regulator-always-on;
++              regulator-boot-on;
++              regulator-min-microvolt = <3300000>;
++              regulator-max-microvolt = <3300000>;
++              regulator-name = "vcc_3v3_rtc_s5";
++              vin-supply = <&vcc_5v0_sys>;
++      };
++
++      vcc_3v3_s0: regulator-vcc-3v3-s0 {
++              compatible = "regulator-fixed";
++              regulator-always-on;
++              regulator-boot-on;
++              regulator-min-microvolt = <3300000>;
++              regulator-max-microvolt = <3300000>;
++              regulator-name = "vcc_3v3_s0";
++              vin-supply = <&vcc_3v3_s3>;
++      };
++
++      vcc_3v3_ufs_s0: regulator-vcc-ufs-s0 {
++              compatible = "regulator-fixed";
++              regulator-always-on;
++              regulator-boot-on;
++              regulator-min-microvolt = <3300000>;
++              regulator-max-microvolt = <3300000>;
++              regulator-name = "vcc_3v3_ufs_s0";
++              vin-supply = <&vcc_5v0_sys>;
++      };
++
++      vcc_5v0_device: regulator-vcc-5v0-device {
++              compatible = "regulator-fixed";
++              regulator-always-on;
++              regulator-boot-on;
++              regulator-min-microvolt = <5000000>;
++              regulator-max-microvolt = <5000000>;
++              regulator-name = "vcc_5v0_device";
++              vin-supply = <&vcc_12v0_dcin>;
++      };
++
++      vcc_5v0_host: regulator-vcc-5v0-host {
++              compatible = "regulator-fixed";
++              enable-active-high;
++              gpios = <&gpio0 RK_PD3 GPIO_ACTIVE_HIGH>;
++              pinctrl-names = "default";
++              pinctrl-0 = <&usb_host_pwren>;
++              regulator-always-on;
++              regulator-boot-on;
++              regulator-min-microvolt = <5000000>;
++              regulator-max-microvolt = <5000000>;
++              regulator-name = "vcc5v0_host";
++              vin-supply = <&vcc_5v0_device>;
++      };
++
++      vcc_5v0_sys: regulator-vcc-5v0-sys {
++              compatible = "regulator-fixed";
++              regulator-always-on;
++              regulator-boot-on;
++              regulator-min-microvolt = <5000000>;
++              regulator-max-microvolt = <5000000>;
++              regulator-name = "vcc_5v0_sys";
++              vin-supply = <&vcc_12v0_dcin>;
++      };
++};
++
++&combphy1_psu {
++      status = "okay";
++};
++
++&cpu_b0 {
++      cpu-supply = <&vdd_cpu_big_s0>;
++};
++
++&cpu_b1 {
++      cpu-supply = <&vdd_cpu_big_s0>;
++};
++
++&cpu_b2 {
++      cpu-supply = <&vdd_cpu_big_s0>;
++};
++
++&cpu_b3 {
++      cpu-supply = <&vdd_cpu_big_s0>;
++};
++
++&cpu_l0 {
++      cpu-supply = <&vdd_cpu_lit_s0>;
++};
++
++&cpu_l1 {
++      cpu-supply = <&vdd_cpu_lit_s0>;
++};
++
++&cpu_l2 {
++      cpu-supply = <&vdd_cpu_lit_s0>;
++};
++
++&cpu_l3 {
++      cpu-supply = <&vdd_cpu_lit_s0>;
++};
++
++&gmac0 {
++      clock_in_out = "output";
++      phy-handle = <&rgmii_phy0>;
++      phy-mode = "rgmii-id";
++      pinctrl-names = "default";
++      pinctrl-0 = <&eth0m0_miim
++                   &eth0m0_tx_bus2
++                   &eth0m0_rx_bus2
++                   &eth0m0_rgmii_clk
++                   &eth0m0_rgmii_bus
++                   &ethm0_clk0_25m_out>;
++      status = "okay";
++};
++
++&gpu {
++      mali-supply = <&vdd_gpu_s0>;
++      status = "okay";
++};
++
++&hdmi {
++      status = "okay";
++};
++
++&hdmi_in {
++      hdmi_in_vp0: endpoint {
++              remote-endpoint = <&vp0_out_hdmi>;
++      };
++};
++
++&hdmi_out {
++      hdmi_out_con: endpoint {
++              remote-endpoint = <&hdmi_con_in>;
++      };
++};
++
++&hdptxphy {
++      status = "okay";
++};
++
++&i2c1 {
++      status = "okay";
++
++      pmic@23 {
++              compatible = "rockchip,rk806";
++              reg = <0x23>;
++              #gpio-cells = <2>;
++              gpio-controller;
++              interrupt-parent = <&gpio0>;
++              interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
++              pinctrl-names = "default";
++              pinctrl-0 = <&pmic_pins
++                           &rk806_dvs1_null
++                           &rk806_dvs2_null
++                           &rk806_dvs3_null>;
++              system-power-controller;
++              vcc1-supply = <&vcc_5v0_sys>;
++              vcc2-supply = <&vcc_5v0_sys>;
++              vcc3-supply = <&vcc_5v0_sys>;
++              vcc4-supply = <&vcc_5v0_sys>;
++              vcc5-supply = <&vcc_5v0_sys>;
++              vcc6-supply = <&vcc_5v0_sys>;
++              vcc7-supply = <&vcc_5v0_sys>;
++              vcc8-supply = <&vcc_5v0_sys>;
++              vcc9-supply = <&vcc_5v0_sys>;
++              vcc10-supply = <&vcc_5v0_sys>;
++              vcc11-supply = <&vcc_2v0_pldo_s3>;
++              vcc12-supply = <&vcc_5v0_sys>;
++              vcc13-supply = <&vcc_1v1_nldo_s3>;
++              vcc14-supply = <&vcc_1v1_nldo_s3>;
++              vcca-supply = <&vcc_5v0_sys>;
++
++              rk806_dvs1_null: dvs1-null-pins {
++                      pins = "gpio_pwrctrl1";
++                      function = "pin_fun0";
++              };
++
++              rk806_dvs1_pwrdn: dvs1-pwrdn-pins {
++                      pins = "gpio_pwrctrl1";
++                      function = "pin_fun2";
++              };
++
++              rk806_dvs1_rst: dvs1-rst-pins {
++                      pins = "gpio_pwrctrl1";
++                      function = "pin_fun3";
++              };
++
++              rk806_dvs1_slp: dvs1-slp-pins {
++                      pins = "gpio_pwrctrl1";
++                      function = "pin_fun1";
++              };
++
++              rk806_dvs2_dvs: dvs2-dvs-pins {
++                      pins = "gpio_pwrctrl2";
++                      function = "pin_fun4";
++              };
++
++              rk806_dvs2_gpio: dvs2-gpio-pins {
++                      pins = "gpio_pwrctrl2";
++                      function = "pin_fun5";
++              };
++
++              rk806_dvs2_null: dvs2-null-pins {
++                      pins = "gpio_pwrctrl2";
++                      function = "pin_fun0";
++              };
++
++              rk806_dvs2_pwrdn: dvs2-pwrdn-pins {
++                      pins = "gpio_pwrctrl2";
++                      function = "pin_fun2";
++              };
++
++              rk806_dvs2_rst: dvs2-rst-pins {
++                      pins = "gpio_pwrctrl2";
++                      function = "pin_fun3";
++              };
++
++              rk806_dvs2_slp: dvs2-slp-pins {
++                      pins = "gpio_pwrctrl2";
++                      function = "pin_fun1";
++              };
++
++              rk806_dvs3_dvs: dvs3-dvs-pins {
++                      pins = "gpio_pwrctrl3";
++                      function = "pin_fun4";
++              };
++
++              rk806_dvs3_gpio: dvs3-gpio-pins {
++                      pins = "gpio_pwrctrl3";
++                      function = "pin_fun5";
++              };
++
++              rk806_dvs3_null: dvs3-null-pins {
++                      pins = "gpio_pwrctrl3";
++                      function = "pin_fun0";
++              };
++
++              rk806_dvs3_pwrdn: dvs3-pwrdn-pins {
++                      pins = "gpio_pwrctrl3";
++                      function = "pin_fun2";
++              };
++
++              rk806_dvs3_rst: dvs3-rst-pins {
++                      pins = "gpio_pwrctrl3";
++                      function = "pin_fun3";
++              };
++
++              rk806_dvs3_slp: dvs3-slp-pins {
++                      pins = "gpio_pwrctrl3";
++                      function = "pin_fun1";
++              };
++
++              regulators {
++                      vdd_cpu_big_s0: dcdc-reg1 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-enable-ramp-delay = <400>;
++                              regulator-min-microvolt = <550000>;
++                              regulator-max-microvolt = <950000>;
++                              regulator-name = "vdd_cpu_big_s0";
++                              regulator-ramp-delay = <12500>;
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++
++                      vdd_npu_s0: dcdc-reg2 {
++                              regulator-boot-on;
++                              regulator-enable-ramp-delay = <400>;
++                              regulator-min-microvolt = <550000>;
++                              regulator-max-microvolt = <950000>;
++                              regulator-name = "vdd_npu_s0";
++                              regulator-ramp-delay = <12500>;
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++
++                      vdd_cpu_lit_s0: dcdc-reg3 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <550000>;
++                              regulator-max-microvolt = <950000>;
++                              regulator-name = "vdd_cpu_lit_s0";
++                              regulator-ramp-delay = <12500>;
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                                      regulator-suspend-microvolt = <750000>;
++                              };
++                      };
++
++                      vcc_3v3_s3: dcdc-reg4 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <3300000>;
++                              regulator-max-microvolt = <3300000>;
++                              regulator-name = "vcc_3v3_s3";
++                              regulator-state-mem {
++                                      regulator-on-in-suspend;
++                                      regulator-suspend-microvolt = <3300000>;
++                              };
++                      };
++
++                      vdd_gpu_s0: dcdc-reg5 {
++                              regulator-boot-on;
++                              regulator-enable-ramp-delay = <400>;
++                              regulator-min-microvolt = <550000>;
++                              regulator-max-microvolt = <900000>;
++                              regulator-name = "vdd_gpu_s0";
++                              regulator-ramp-delay = <12500>;
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                                      regulator-suspend-microvolt = <850000>;
++                              };
++                      };
++
++                      vddq_ddr_s0: dcdc-reg6 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-name = "vddq_ddr_s0";
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++
++                      vdd_logic_s0: dcdc-reg7 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <550000>;
++                              regulator-max-microvolt = <800000>;
++                              regulator-name = "vdd_logic_s0";
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++
++                      vcc_1v8_s3: dcdc-reg8 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <1800000>;
++                              regulator-max-microvolt = <1800000>;
++                              regulator-name = "vcc_1v8_s3";
++                              regulator-state-mem {
++                                      regulator-on-in-suspend;
++                                      regulator-suspend-microvolt = <1800000>;
++                              };
++                      };
++
++                      vdd2_ddr_s3: dcdc-reg9 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-name = "vdd2_ddr_s3";
++                              regulator-state-mem {
++                                      regulator-on-in-suspend;
++                              };
++                      };
++
++                      vdd_ddr_s0: dcdc-reg10 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <550000>;
++                              regulator-max-microvolt = <1200000>;
++                              regulator-name = "vdd_ddr_s0";
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++
++                      vcca_1v8_s0: pldo-reg1 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <1800000>;
++                              regulator-max-microvolt = <1800000>;
++                              regulator-name = "vcca_1v8_s0";
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++
++                      vcca1v8_pldo2_s0: pldo-reg2 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <1800000>;
++                              regulator-max-microvolt = <1800000>;
++                              regulator-name = "vcca1v8_pldo2_s0";
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++
++                      vdda_1v2_s0: pldo-reg3 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <1200000>;
++                              regulator-max-microvolt = <1200000>;
++                              regulator-name = "vdda_1v2_s0";
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++
++                      vcca_3v3_s0: pldo-reg4 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <3300000>;
++                              regulator-max-microvolt = <3300000>;
++                              regulator-name = "vcca_3v3_s0";
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++
++                      vccio_sd_s0: pldo-reg5 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <1800000>;
++                              regulator-max-microvolt = <3300000>;
++                              regulator-name = "vccio_sd_s0";
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++
++                      vcca1v8_pldo6_s3: pldo-reg6 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <1800000>;
++                              regulator-max-microvolt = <1800000>;
++                              regulator-name = "vcca1v8_pldo6_s3";
++                              regulator-state-mem {
++                                      regulator-on-in-suspend;
++                                      regulator-suspend-microvolt = <1800000>;
++                              };
++                      };
++
++                      vdd_0v75_s3: nldo-reg1 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <750000>;
++                              regulator-max-microvolt = <750000>;
++                              regulator-name = "vdd_0v75_s3";
++                              regulator-state-mem {
++                                      regulator-on-in-suspend;
++                                      regulator-suspend-microvolt = <750000>;
++                              };
++                      };
++
++                      vdda_ddr_pll_s0: nldo-reg2 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <850000>;
++                              regulator-max-microvolt = <850000>;
++                              regulator-name = "vdda_ddr_pll_s0";
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++
++                      vdda0v75_hdmi_s0: nldo-reg3 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <837500>;
++                              regulator-max-microvolt = <837500>;
++                              regulator-name = "vdda0v75_hdmi_s0";
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++
++                      vdda_0v85_s0: nldo-reg4 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <850000>;
++                              regulator-max-microvolt = <850000>;
++                              regulator-name = "vdda_0v85_s0";
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++
++                      vdda_0v75_s0: nldo-reg5 {
++                              regulator-always-on;
++                              regulator-boot-on;
++                              regulator-min-microvolt = <750000>;
++                              regulator-max-microvolt = <750000>;
++                              regulator-name = "vdda_0v75_s0";
++                              regulator-state-mem {
++                                      regulator-off-in-suspend;
++                              };
++                      };
++              };
++      };
++};
++
++&i2c2 {
++      status = "okay";
++
++      hym8563: rtc@51 {
++              compatible = "haoyu,hym8563";
++              reg = <0x51>;
++              #clock-cells = <0>;
++              clock-output-names = "hym8563";
++              interrupt-parent = <&gpio0>;
++              interrupts = <RK_PA0 IRQ_TYPE_LEVEL_LOW>;
++              pinctrl-names = "default";
++              pinctrl-0 = <&hym8563_int>;
++              wakeup-source;
++      };
++};
++
++&mdio0 {
++      rgmii_phy0: ethernet-phy@1 {
++              compatible = "ethernet-phy-ieee802.3-c22";
++              reg = <0x1>;
++              clocks = <&cru REFCLKO25M_GMAC0_OUT>;
++              pinctrl-names = "default";
++              pinctrl-0 = <&rtl8211f_rst>;
++              reset-assert-us = <20000>;
++              reset-deassert-us = <100000>;
++              reset-gpio = <&gpio2 RK_PB5 GPIO_ACTIVE_LOW>;
++      };
++};
++
++&pinctrl {
++      hym8563 {
++              hym8563_int: hym8563-int {
++                      rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
++              };
++      };
++
++      leds {
++              led_rgb_g: led-green-en {
++                      rockchip,pins = <0 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>;
++              };
++              led_rgb_r: led-red-en {
++                      rockchip,pins = <0 RK_PC4 RK_FUNC_GPIO &pcfg_pull_none>;
++              };
++      };
++
++      rtl8211f {
++              rtl8211f_rst: rtl8211f-rst {
++                      rockchip,pins = <2 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
++              };
++      };
++
++      pcie {
++              pcie_pwren: pcie-pwren {
++                      rockchip,pins = <2 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
++              };
++      };
++
++      usb {
++              usb_host_pwren: usb-host-pwren {
++                      rockchip,pins = <0 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
++              };
++      };
++};
++
++&sdmmc {
++      bus-width = <4>;
++      cap-mmc-highspeed;
++      cap-sd-highspeed;
++      disable-wp;
++      max-frequency = <200000000>;
++      no-sdio;
++      no-mmc;
++      sd-uhs-sdr104;
++      vmmc-supply = <&vcc_3v3_s3>;
++      vqmmc-supply = <&vccio_sd_s0>;
++      status = "okay";
++};
++
++
++&sfc0 {
++      pinctrl-names = "default";
++      pinctrl-0 = <&fspi0_pins &fspi0_csn0>;
++      status = "okay";
++
++      flash@0 {
++              compatible = "jedec,spi-nor";
++              reg = <0>;
++              spi-max-frequency = <50000000>;
++              spi-rx-bus-width = <4>;
++              spi-tx-bus-width = <1>;
++              vcc-supply = <&vcc_1v8_s3>;
++      };
++};
++
++&u2phy0 {
++      status = "okay";
++};
++
++&u2phy1 {
++      status = "okay";
++};
++
++&uart0 {
++      pinctrl-0 = <&uart0m0_xfer>;
++      status = "okay";
++};
++
++&usb_drd1_dwc3 {
++      dr_mode = "host";
++      status = "okay";
++};
++
++&vop {
++      status = "okay";
++};
++
++&vop_mmu {
++      status = "okay";
++};
++
++&vp0 {
++      vp0_out_hdmi: endpoint@ROCKCHIP_VOP2_EP_HDMI0 {
++              reg = <ROCKCHIP_VOP2_EP_HDMI0>;
++              remote-endpoint = <&hdmi_in_vp0>;
++      };
++};
+--- /dev/null
++++ b/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;
++      };
++};
+--- a/arch/arm/mach-rockchip/rk3576/MAINTAINERS
++++ b/arch/arm/mach-rockchip/rk3576/MAINTAINERS
+@@ -3,3 +3,9 @@ M:     Jonas Karlman <jonas@kwiboo.se>
+ 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
+--- /dev/null
++++ b/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
+--- a/doc/board/rockchip/rockchip.rst
++++ b/doc/board/rockchip/rockchip.rst
+@@ -137,6 +137,7 @@ List of mainline supported Rockchip boar
+ * rk3576
+      - Firefly ROC-RK3576-PC (roc-pc-rk3576)
+      - Generic RK3576 (generic-rk3576)
++     - Radxa ROCK 4D (rock-4d-rk3576)
+ * rk3588
+      - ArmSoM Sige7 (sige7-rk3588)