board: rockchip: Add Radxa ZERO 3W/3E

The Radxa ZERO 3W/3E is an ultra-small, high-performance single board
computer based on the Rockchip RK3566, with a compact form factor and
rich interfaces.

Implement rk_board_late_init() to set correct fdtfile env var and
board_fit_config_name_match() to load correct FIT config based on what
board is detected at runtime so a single board target can be used for
both board models.

Features tested on a ZERO 3W 8GB v1.11:
- SD-card boot
- eMMC boot
- USB gadget
- USB host

Features tested on a ZERO 3E 4GB v1.2:
- SD-card boot
- Ethernet
- USB gadget
- USB host

Signed-off-by: Jonas Karlman <[email protected]>
Tested-by: FUKAUMI Naoki <[email protected]>
Reviewed-by: Kever Yang <[email protected]>

3 files changed, 36 insertions, 0 deletions

diff --git a/arch/arm/dts/rk3566-radxa-zero-3e-u-boot.dtsi b/arch/arm/dts/rk3566-radxa-zero-3e-u-boot.dtsi
new file mode 100644
index 00000000000..8af2581163b
--- /dev/null
+++ b/arch/arm/dts/rk3566-radxa-zero-3e-u-boot.dtsi
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+#include "rk356x-u-boot.dtsi"
+
+&saradc {
+	bootph-pre-ram;
+};
+
+&usb_host0_xhci {
+	dr_mode = "otg";
+};
+
+&vcca_1v8 {
+	bootph-pre-ram;
+};
diff --git a/arch/arm/dts/rk3566-radxa-zero-3w-u-boot.dtsi b/arch/arm/dts/rk3566-radxa-zero-3w-u-boot.dtsi
new file mode 100644
index 00000000000..8af2581163b
--- /dev/null
+++ b/arch/arm/dts/rk3566-radxa-zero-3w-u-boot.dtsi
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+#include "rk356x-u-boot.dtsi"
+
+&saradc {
+	bootph-pre-ram;
+};
+
+&usb_host0_xhci {
+	dr_mode = "otg";
+};
+
+&vcca_1v8 {
+	bootph-pre-ram;
+};
diff --git a/arch/arm/mach-rockchip/rk3568/Kconfig b/arch/arm/mach-rockchip/rk3568/Kconfig
index 014ebf9f0ba..0f32f243be4 100644
--- a/arch/arm/mach-rockchip/rk3568/Kconfig
+++ b/arch/arm/mach-rockchip/rk3568/Kconfig
@@ -32,6 +32,11 @@ config TARGET_QUARTZ64_RK3566
 	help
 	  Pine64 Quartz64 single board computer with a RK3566 SoC.
 
+config TARGET_RADXA_ZERO_3_RK3566
+	bool "Radxa ZERO 3W/3E"
+	help
+	  Radxa ZERO 3W/3E single board computers with a RK3566 SoC.
+
 endchoice
 
 config ROCKCHIP_BOOT_MODE_REG
@@ -54,5 +59,6 @@ source "board/anbernic/rgxx3_rk3566/Kconfig"
 source "board/hardkernel/odroid_m1/Kconfig"
 source "board/pine64/quartz64_rk3566/Kconfig"
 source "board/powkiddy/x55/Kconfig"
+source "board/radxa/zero3-rk3566/Kconfig"
 
 endif