diff options
| author | Max Krummenacher <max.krummenacher@toradex.com> | 2020-09-16 19:03:04 +0200 |
|---|---|---|
| committer | Max Krummenacher <max.krummenacher@toradex.com> | 2020-09-16 19:20:51 +0200 |
| commit | c329d479df14ec2f2078b39d0f66a477ae0afc3f (patch) | |
| tree | 5be6f258dbb7a7f54c3474f61023913b424f33e8 /arch/arm64/boot/dts/freescale/imx8qm-apalis-v1.1.dtsi | |
| parent | 61d146c86f6008abc89953b7e73e4a98cccb2008 (diff) | |
ARM64: dts: apalis-imx8qm: add comment for 2.5v for the ext rgmii signals
Add a comment on how to switch the rail supplying the ext rgmii
signals to 2.5V. Keep the rail at its default 3.3V though.
Note that this requires a resent enough SCFW which provides this
feature.
Related-to: ELB-2942
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Diffstat (limited to 'arch/arm64/boot/dts/freescale/imx8qm-apalis-v1.1.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8qm-apalis-v1.1.dtsi | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8qm-apalis-v1.1.dtsi b/arch/arm64/boot/dts/freescale/imx8qm-apalis-v1.1.dtsi index ec29b9562c7b..57ea547dc2f2 100644 --- a/arch/arm64/boot/dts/freescale/imx8qm-apalis-v1.1.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8qm-apalis-v1.1.dtsi @@ -83,6 +83,9 @@ * * IMX_SC_R_BOARD_R1 for 3.3V * IMX_SC_R_BOARD_R2 for 1.8V + * IMX_SC_R_BOARD_R3 for 2.5V + * Note that for 2.5V operation the pad muxing needs to be changed, + * compare with PSW_OVR field of IMX8QM_COMP_CTL_GPIO_1V8_3V3_ENET_ENETA_PAD. * * those power domains are mutually exclusive. */ |