rk3566 bsp:

* Add RK3566 Code (Forked from rt-thread/tree/master/bsp/rockchip/rk3500).
* Added to the original RK3566 documentation, more detailed usage instructions.

Signed-off-by: lipeng <[email protected]>

Author: LeenixP

bsp/rockchip/rk3566/.config

@@ -0,0 +1,31 @@
+mainmenu "RT-Thread Project Configuration"
+
+config BSP_DIR
+    string
+    option env="BSP_ROOT"
+    default "."
+
+config RTT_DIR
+    string
+    option env="RTT_ROOT"
+    default "../../.."
+
+config PKGS_DIR
+    string
+    option env="PKGS_ROOT"
+    default "packages"
+
+source "$RTT_DIR/Kconfig"
+source "$PKGS_DIR/Kconfig"
+source "$BSP_DIR/driver/Kconfig"
+
+config SOC_RK3568
+    bool
+    select ARCH_ARMV8
+    select ARCH_CPU_64BIT
+    select RT_USING_CACHE
+    select RT_USING_COMPONENTS_INIT
+    select RT_USING_USER_MAIN
+    select ARCH_ARM_BOOTWITH_FLUSH_CACHE
+    default y
+