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| /openbmc/linux/arch/arm64/boot/dts/freescale/ |
| H A D | imx8mq-evk.dts | diff 9b95c44b417662327e1a2602cc6c6af8cba95825 Tue Apr 13 21:26:14 CDT 2021 Richard Zhu <hongxing.zhu@nxp.com> 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: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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