Rockchip RK3588如何创建新一个新板级DTS

Rockchip RK3588如何创建新一个新板级DTS

基于SDK已有的DTS选择一个适合的基础参考DTS

RK3588 SDK发布的参考DTS介绍

芯片	开发板类型	机型	硬件配置	DTS
RK3588	开发板	RK3588 EVB1	双PMIC：RK806 * 2+DiscretePower LPDDR4(200Ball) 1xTYPEC(DP)+1xUSB30 2xUSB20 1xSATA3.0 2xHDMI2.1 TX 1xHDMI2.0 RX 1xVGA 1xPCIE WIFI 6 2x10/100/1000 RJ45 1X4Lane标准PCIE30 Slot 2x4Lane Mipi CSI Connetor(B TO B 80Pin) 2x4Lane Mipi D-PHY RX Connector (B TO B 80Pin) 1X4Lane Mipi D-PHY TX Connector (For mipi lcd) 1X4Lane Mipi D-PHY TX Connector(For DSC LCD) Line in,1xLine out(ES8388+TT8642) 1xpower led+1xether led+1xhdd led 1xRecovery + reset+pwr+(vol+)+(vol-)+esc+boot key Debug Uart+JTAG	rk3588-evb1-lp4-v10
RK3588	开发板	RK3588 EVB7 RK3588_AIOT_REF_SCH_V11硬件参设计对应的软件配置	单PMICRK806+DiscretePower LPDDR4(200Ball) 1xTYPEC(DP)+1xUSB30 2xUSB20 3.1xSATA3.0 2xHDMI2.1 TX 1xHDMI2.0 RX 1xVGA 1xSDIO WIFI 6 2x10/100/1000 RJ45 1X4Lane标准PCIE30 Slot 2x4Lane Mipi CSI Connetor(B TO B 80Pin) 2x4Lane Mipi D-PHY RX Connector (B TO B 80Pin) 1X4Lane Mipi D-PHY TX Connector (For mipi lcd) 1X4Lane Mipi D-PHY TX Connector(For DSC LCD) Line in,1xLine out(ES8388+TT8642) 1xpower led+1xether led+1xhdd led 1xRecovery + reset+pwr+(vol+)+(vol-)+esc+boot key Debug Uart+JTAG 18.TF Card	rk3588-evb7-lp4-v10
RK3588	开发板	RK3588 EVB4	单PMICRK806+DiscretePower LPDDR4(200Ball) EVB_分立电源+金手指aDD IN CARD 1xTYPEC 1xUSB30 HOST 1xWIFI 6（SDIO） 1x10/100/1000 RGMII（RGMII） TF Card 1080P mipi LCD MIPI CPHY TX LCD Pciex4金手指 电源分立元件	rk3588-evb4-lp4-v10
RK3588	开发板	RK3588 EVB2	双PMIC：RK806 * 2+DiscretePower LPDDR4(200Ball) 3xUSB30(OTG)+1XUSB(HOST) 1xUSB20 1xSATA 1xHDMI2.1 TX 1xHDMI2.0 RX 1xWIFI 6（SDIO） 1xeDP 1xDP 1xVGA 1xPCIE30X4 1x10/100/1000 RJ45(RGMII1) 1x10/100/1000 RJ45(PCIE20_1) 2x4Lane Mipi CSI Connetor(B TO B 80Pin) 2x4Lane Mipi D-PHY RX Connector (B TO B 80Pin) 1X4Lane Mipi D-PHY TX Connector (FPC 30 Pin) TF CARD 1xIR Receiver 1xPHONE+2XSPK(ES8388+TT8642) 1xRecovery + reset+pwr+(vol+)+(vol-)+esc+boot key 1xRS232+1XRS485+1CAN 21.Debug Uart(UART)+JTAG	rk3588-evb2-lp4-v10-edp
RK3588	NVR	单PMICRK806+DiscretePower LPDDR4(200Ball) RK3588 NVR	2 x USB3.0 HOST + 2 x USB2.0 HOST 10 x SATA3.0 Connector (7pin) 1 x 4Lanes PCIe Connector 2 x HDMI2.1 TX + 1 x HDMI2.0 TX 1 x VGA TX,up to 1080P 2 x 4Lanes MIPI CSI RX Camera Connector 2 x 10/100/1000 Ethernet(RGMII) 1 x Line Out, 1 x Line In 1 x Buzzer 1 x IR Receiver 1 x Power LED,1 x Ethernet LED,1 x HDD LED 1 x Recovery Key,1x Reset Key 1 x RS232 1 x RS485 1 x UART Debug UART(USB to UART),Debug JTAG (4Pin)	rk3588-nvr-demo-v10-android
RK3588S	开发板	RK3588S EVB1	双PMIC： RK806 * 2+DiscretePower LPDDR4(200Ball) 1xTYPEC0 1xUSB20 OTG 2xUSB20 HOST 1xSD3.0 1x4lane eDP TX 2x4Lane MIPI DPHY TX 2x4LaneMIPI DPHY RX 1x4Lane/2x2Lane MIPI CSI RX 1xPCIE20 （1lane x4 Slot 1x a/b/g/n/ac/ax 2X2 PCIE WIFI,BT5.0 HPout and Speak out(ES8388+PA) 1*AMIC+DMIC IN(ES8388+PA) 6 DMIC Array Senor+IR+Optical S/PDIF TX Key 1xCAN Debug Uart&Jtag	rk3588s-evb1-lp4x-v10
RK3588S	平板	样机	双PMIC： RK806 * 2+DiscretePower LPDDR4/4x 2pcsx 32bit Micro SD Card3.0 1 x Typec3.0 + 2 x USB2 HOST 1 x 1Lane PCIe2.0 Connector (RC Mode) 2 x 4Lanes MIPI DPHY_RX Camera 1 x 4Lanes MIPI CSI Camera or 2 x 2Lanes MIPI CSI Camera 1 x 4Lanes eDP with Touch Connection 2 x 4Lanes MIPI DPHY with Touch Connector a/b/g/n/ac/ax 2X2 WIFI,BT5.0 Headphone output,1 x ECM MIC and 2xSpeaker out(Codec ALC5651) Gyroscope+G-sensor+Ambient Light+Proximity +Hall Sensor+M-Sensor Array Key(MENU,VOL+,VOL-,ESC),Reset,Power on/off Key Debug UART to USB connector and JTAG Connector	rk3588s-tablet-v10
RK3588S	平板	RK3588S平板硬件参考设计对应的软件配置	单PMIC：RK806-2x1pcs+DiscretePower LPDDR4/4x 2pcsx 32bit Micro SD Card3.0 1 x Typec3.0 + 2 x USB2 HOST 1 x 1Lane PCIe2.0 Connector (RC Mode) 2 x 4Lanes MIPI DPHY_RX Camera 1 x 4Lanes MIPI CSI Camera or 2 x 2Lanes MIPI CSI Camera 1 x 4Lanes eDP with Touch Connection 2 x 4Lanes MIPI DPHY with Touch Connector a/b/g/n/ac/ax 2X2 WIFI,BT5.0 Headphone output,1 x ECM MIC and 2xSpeaker out(Codec ALC5651) Gyroscope+G-sensor+Ambient Light+Proximity +Hall Sensor+M-Sensor Array Key(MENU,VOL+,VOL-,ESC),Reset,Power on/off Key Debug UART to USB connector and JTAG Connecto	rk3588s-tablet-v11

新建一个板级DTS

根据上面的介绍各个参考DTS对应的硬件配置，选择适合的参考DTS。在参考的dts的基础上修改适配自己的硬件，具体是新建一个自己的产品的DTS，在dts中include参考的dts对应的dtsi，将硬件差异部分修改在新建的dts中。比如：rk3588-evb1-lp4-v10.dts中include了rk3588-evb1-lp4.dtsi

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright (c) 2021 Rockchip Electronics Co., Ltd.
 *
 */

/dts-v1/;

#include "rk3588-evb1-lp4.dtsi"
#include "rk3588-evb1-imx415.dtsi"
#include "rk3588-android.dtsi"

/ {
        model = "Rockchip RK3588 EVB1 LP4 V10 Board";
        compatible = "rockchip,rk3588-evb1-lp4-v10", "rockchip,rk3588";
};

这样新建DTS的好处是在SDK更新的时候可以直接继承RK的DTS的修改，避免遗漏DTS的更新。

修改DTS来适配新板的硬件设计

硬件设计与参考设计有差异的话，对应的DTS修改可以在新建的dts中修改，dts可以复写dtsi中的节点，比如修改LCD背光的电源控制gpio：

&backlight {
        enable-gpios = <&gpio1 RK_PC4 GPIO_ACTIVE_HIGH>;  //复写enable-gpios
};

关闭某些不需要的功能节点，比如不需要gtlx的触摸驱动：

>1x {
        status = "disabled";
};

返回RK3588 DTS解析专栏