tree d2b3656e1430eee9c0c11bdf57159a5afa3ae174
parent cb93d2681fe54a77cd8e11ae0b07812c43b36745
author Richard Zhu <hongxing.zhu@nxp.com> 1617939769 +0800
committer Peter Nordström <pnordstrom@google.com> 1620685883 -0700

MLK-25349-3 PCI: imx: clear vreg bypass when pcie vph voltage is 3v3

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: Ifcc935bfdad3b91ff18359ab932cd9eb2cd2120a