MLK-25349-2 arm64: dts: imx8mq-evk: add one regulator used to power up pcie phy Both 1.8v and 3.3v power supplies can be used by i.MX8MQ PCIe PHY. In default, the PCIE_VPH voltage is suggested to be 1.8v refer to data sheet. When PCIE_VPH is supplied by 3.3v in the HW schematic design, the VREG_BYPASS bits of GPR registers should be cleared from default value 1b'1 to 1b'0. Thus, the internal 3v3 to 1v8 translator would be turned on. Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> Reviewed-by: Jun Li <jun.li@nxp.com> Change-Id: I4a977100d6e22d1b6cc2a423d8ea50873979311e
diff --git a/arch/arm64/boot/dts/freescale/fsl-imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/fsl-imx8mq-evk.dts index f707994..9d91bf0 100644 --- a/arch/arm64/boot/dts/freescale/fsl-imx8mq-evk.dts +++ b/arch/arm64/boot/dts/freescale/fsl-imx8mq-evk.dts
@@ -737,6 +737,7 @@ reset-gpio = <&gpio5 28 GPIO_ACTIVE_LOW>; ext_osc = <1>; hard-wired = <1>; + vph-supply = <&vgen5_reg>; status = "okay"; }; @@ -746,6 +747,7 @@ disable-gpio = <&gpio5 10 GPIO_ACTIVE_LOW>; reset-gpio = <&gpio5 12 GPIO_ACTIVE_LOW>; ext_osc = <1>; + vph-supply = <&vgen5_reg>; status = "okay"; };