board: rockchip: Add Radxa ROCK 3B
The Radxa ROCK 3B is a single-board computer based on the Pico-ITX form
factor (100mm x 75mm). Two versions of the ROCK 3B exists, a community
version based on the RK3568 SoC and an industrial version based on the
RK3568J SoC.
Features tested on ROCK 3B 8GB v1.51 (both variants):
- SD-card boot
- eMMC boot
- SPI Flash boot
- Ethernet
- PCIe/NVMe
- USB gadget
- USB host
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Tested-by: FUKAUMI Naoki <naoki@radxa.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3568-rock-3b-u-boot.dtsi b/arch/arm/dts/rk3568-rock-3b-u-boot.dtsi
new file mode 100644
index 0000000..b1f3242
--- /dev/null
+++ b/arch/arm/dts/rk3568-rock-3b-u-boot.dtsi
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+#include "rk356x-u-boot.dtsi"
+
+&sdhci {
+ mmc-hs400-1_8v;
+ mmc-hs400-enhanced-strobe;
+};
+
+&sfc {
+ flash@0 {
+ bootph-pre-ram;
+ bootph-some-ram;
+ };
+};