board: rockchip: add Anbernic RGXX3 Series Devices

The Anbernic RGxx3 is a "pseudo-device" that encompasses the following
devices:

 - Anbernic RG353M
 - Anbernic RG353P
 - Anbernic RG353V
 - Anbernic RG353VS
 - Anbernic RG503

The rk3566-anbernic-rgxx3.dtsi is synced with upstream Linux, but
rk3566-anbernic-rgxx3.dts is a U-Boot specific devicetree that
is used for all RGxx3 devices.

Via the board.c file, the bootloader automatically sets the correct
fdtfile, board, and board_name environment variables so that the
correct devicetree can be passed to Linux. It is also possible to
simply hard-code a single devicetree in the boot.scr file and use
that to load Linux as well.

The common specifications for each device are:

 - Rockchip RK3566 SoC
 - 2 external SDMMC slots
 - 1 USB-C host port, 1 USB-C peripheral port
 - 1 mini-HDMI output
 - MIPI-DSI based display panel
 - ADC controlled joysticks with a GPIO mux
 - GPIO buttons
 - A PWM controlled vibrator
 - An ADC controlled button

All of the common features are defined in the devicetree synced from
upstream Linux.

TODO: DSI panel auto-detection for the RG353 devices (requires porting
of DSI controller driver and DSI-DPHY driver to send DSI commands to
the panel).

Signed-off-by: Chris Morgan <[email protected]>
Reviewed-by: Kever Yang <[email protected]>

1 files changed, 12 insertions, 0 deletions

diff --git a/include/configs/anbernic-rgxx3-rk3566.h b/include/configs/anbernic-rgxx3-rk3566.h
new file mode 100644
index 00000000000..3c4ea4e7d84
--- /dev/null
+++ b/include/configs/anbernic-rgxx3-rk3566.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef __ANBERNIC_RGXX3_RK3566_H
+#define __ANBERNIC_RGXX3_RK3566_H
+
+#include <configs/rk3568_common.h>
+
+#define ROCKCHIP_DEVICE_SETTINGS \
+			"stdout=serial,vidconsole\0" \
+			"stderr=serial,vidconsole\0"
+
+#endif