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author | 2021-04-14 10:26:14 +0800 | |
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committer | 2021-06-12 16:17:02 +0800 | |
commit | 9b95c44b417662327e1a2602cc6c6af8cba95825 (patch) | |
tree | 143ca4ffb36705273d518a15dda577494c21e8ec /lib/test_bitmap.c | |
parent | arm64: dts: imx8mm: Add spba1 and spba2 buses (diff) | |
download | linux-dev-9b95c44b417662327e1a2602cc6c6af8cba95825.tar.xz linux-dev-9b95c44b417662327e1a2602cc6c6af8cba95825.zip |
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>
Diffstat (limited to 'lib/test_bitmap.c')
0 files changed, 0 insertions, 0 deletions