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| author |   Robin Murphy <robin.murphy@arm.com> | 2019-11-16 12:47:20 +0000 |
|---|---|---|
| committer |   Heiko Stuebner <heiko@sntech.de> | 2019-12-09 09:44:22 +0100 |
| commit | 876816b2679f0bf2bdc5f9d04b00f58f419d88e2 (patch) | |
| tree | e8b75179b8cfa20c4c149ef484bd788563b2fa86 /arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi | |
| parent | arm64: dts: rockchip: Fix NanoPC-T4 cooling maps (diff) | |
| download | linux-dev-876816b2679f0bf2bdc5f9d04b00f58f419d88e2.tar.xz linux-dev-876816b2679f0bf2bdc5f9d04b00f58f419d88e2.zip | |
arm64: dts: rockchip: Improve nanopi4 PCIe
Expand the power tree description with the 0V9 and 1V8 supplies to the
RK3399 PCIe block. The NanoPis M4 and NEO4 just route 2 lanes to the
user expansion pins, so there's not much more to say at the board level
for them; NanoPC-T4 has a standard M.2 connector so we can at least
claim the 3.3V supply to that too.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/a04a17f4b9b12e8698c76b34e7ca22f0c81845ce.1573908195.git.robin.murphy@arm.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to '')
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi index b788ae4f47f0..c88018a0ef35 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi @@ -48,7 +48,7 @@ }; /* switched by pmic_sleep */ - vcc1v8_s3: vcca1v8_s3: vcc1v8-s3 { + vcc1v8_s3: vcc1v8-s3 { compatible = "regulator-fixed"; regulator-always-on; regulator-boot-on; @@ -71,6 +71,27 @@ vin-supply = <&vcc3v3_sys>; }; + /* + * Really, this is supplied by vcc_1v8, and vcc1v8_s3 only + * drives the enable pin, but we can't quite model that. + */ + vcca0v9_s3: vcca0v9-s3 { + compatible = "regulator-fixed"; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <900000>; + regulator-name = "vcca0v9_s3"; + vin-supply = <&vcc1v8_s3>; + }; + + /* As above, actually supplied by vcc3v3_sys */ + vcca1v8_s3: vcca1v8-s3 { + compatible = "regulator-fixed"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-name = "vcca1v8_s3"; + vin-supply = <&vcc1v8_s3>; + }; + vbus_typec: vbus-typec { compatible = "regulator-fixed"; regulator-min-microvolt = <5000000>; @@ -485,7 +506,9 @@ &pcie0 { ep-gpios = <&gpio2 RK_PA4 GPIO_ACTIVE_HIGH>; max-link-speed = <2>; - num-lanes = <4>; + num-lanes = <2>; + vpcie0v9-supply = <&vcca0v9_s3>; + vpcie1v8-supply = <&vcca1v8_s3>; status = "okay"; }; |