本文以RK3588S平台的M.2 接口SATA实际开发硬件为例分享经验
1.硬件连接
SATA 连接到PCIE Mux0上 1lane连接
2.DTS设备树配置
Mux0的PHY(combphy0_ps)工作于SATA模式
&combphy0_ps {
status = "okay";
};
使能SATA0
&sata0 {
status = "okay";
vin-supply = <&VCC3v3_M2SSD>;
};
配置电源
VCC3v3_M2SSD: VCC3v3-M2SSD {
compatible = "regulator-fixed";
regul