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| author | Lucas Stach <l.stach@pengutronix.de> | 2014-07-23 19:29:11 +0200 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@freescale.com> | 2014-09-16 04:25:49 +0200 |
| commit | 78827ec071ef4971a89e1da6349f2b73539639c3 (patch) | |
| tree | eea1a24741926a11e99921e83c62467692a82ff4 /arch/arm | |
| parent | ARM: dts: vf610-colibri: split device tree for carrier boards (diff) | |
| download | linux-78827ec071ef4971a89e1da6349f2b73539639c3.tar.xz linux-78827ec071ef4971a89e1da6349f2b73539639c3.zip | |
ARM: dts: imx6qdl-sabresd: add always on pcie regulator
Everything in the PCI specification assumes devices to be
enumerable on startup. This is only possible if they have
power available.
A future improvement may allow this regulator to be switched
off for D3hot and D3cold power states, but there is a lot
of work to do the pcie host controller side for this to work.
To keep things simple always enable the regulator for now.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/boot/dts/imx6qdl-sabresd.dtsi | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi index ec43dde78525..07fb3020e1bf 100644 --- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi +++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi @@ -54,6 +54,19 @@ gpio = <&gpio4 10 0>; enable-active-high; }; + + reg_pcie: regulator@3 { + compatible = "regulator-fixed"; + reg = <3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pcie_reg>; + regulator-name = "MPCIE_3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&gpio3 19 0>; + regulator-always-on; + enable-active-high; + }; }; gpio-keys { @@ -400,6 +413,12 @@ >; }; + pinctrl_pcie_reg: pciereggrp { + fsl,pins = < + MX6QDL_PAD_EIM_D19__GPIO3_IO19 0x1b0b0 + >; + }; + pinctrl_pwm1: pwm1grp { fsl,pins = < MX6QDL_PAD_SD1_DAT3__PWM1_OUT 0x1b0b1 |