rockchip: add support for Radxa ROCK 5B+

The Radxa ROCK 5B+ is a single board computer using the Rockchip
RK3588 SoC.

- https://radxa.com/products/rock5/5bp

Hardware
--------

- Quad Cortex-A76 and Quad Cortex-A55 CPU
- Mali-G610 MP4 GPU
- 6 TOPS NPU
- 4/8/16/24/32GB LPDDR5 RAM
- 16/32/64/128/256GB on-board eMMC (optional)
- 16MB SPI NOR flash
- microSD card slot
- Wi-Fi 6 (Realtek RTW8852BE)
- 2.5 Gigabit Ethernet port with PoE (additional PoE HAT required)
- USB 3.1 Gen1 Type-C HOST/OTG port
- 2x USB 3.1 Gen1 Type-A HOST ports
- 2x USB 2.0 Type-A HOST ports
- 2x M.2 M Key connectors with PCIe 3.0 x2
- M.2 B Key connector
- SIM card slot
- RTC battery connector
- PWM fan connector
- 20x2 pin header
- USB Type-C power port

Installation
------------

Uncompress the OpenWrt sysupgrade and write it to a micro SD card or
eMMC using dd.

Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Link: https://github.com/openwrt/openwrt/pull/19867
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit d35c641ced)
Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>

package/boot/uboot-rockchip/Makefile

@@ -359,6 +359,13 @@ define U-Boot/cyber3588-aib-rk3588
     cyber_cyber3588-aib
 endef
 
+define U-Boot/generic-rk3588
+  $(U-Boot/rk358x/Default)
+  NAME:=Generic RK358x board
+  BUILD_DEVICES:= \
+    radxa_rock-5b-plus
+endef
+
 # RK3588 boards
 
 define U-Boot/nanopc-t6-rk3588
@@ -460,6 +467,7 @@ UBOOT_TARGETS := \
   rock-3b-rk3568 \
   sige3-rk3568 \
   cyber3588-aib-rk3588 \
+  generic-rk3588 \
   nanopc-t6-rk3588 \
   orangepi-5-plus-rk3588 \
   rock5b-rk3588 \

target/linux/rockchip/image/armv8.mk

@@ -396,6 +396,17 @@ define Device/radxa_rock-5b
 endef
 TARGET_DEVICES += radxa_rock-5b
 
+define Device/radxa_rock-5b-plus
+  DEVICE_VENDOR := Radxa
+  DEVICE_MODEL := ROCK 5B+
+  SOC := rk3588
+  DEVICE_DTS := rockchip/rk3588-rock-5b-plus
+  UBOOT_DEVICE_NAME := generic-rk3588
+  BOOT_FLOW := pine64-img
+  DEVICE_PACKAGES := blkdiscard block-mount kmod-hwmon-pwmfan kmod-nvme kmod-r8125 kmod-rtw89-8852be wpad-openssl
+endef
+TARGET_DEVICES += radxa_rock-5b-plus
+
 define Device/radxa_rock-pi-4a
   DEVICE_VENDOR := Radxa
   DEVICE_MODEL := ROCK Pi 4A