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SubjectRe: [PATCH v3 3/3] arm64: dts: meson: Add minimal support for Odroid-N2
Hi Neil,

On Tue, May 21, 2019 at 5:20 PM Neil Armstrong <narmstrong@baylibre.com> wrote:
[...]
> + hub_5v: regulator-hub_5v {
> + compatible = "regulator-fixed";
> + regulator-name = "HUB_5V";
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + vin-supply = <&vcc_5v>;
> +
> + gpio = <&gpio GPIOH_5 GPIO_ACTIVE_HIGH>;
I missed this in the review of v1:
according to the schematics GPIOH_5 is routed to GL3523 (soldered down
USB hub) CHIP_EN signal.
The datasheet [0] mentions that this will "Disable whole chip and keep
hub in lowest power state (standby mode)"

do you know if this is a similar case as GPIOH_4 (USB hub reset line,
we configure this using a gpio-hog)?

[...]
> +&ext_mdio {
> + external_phy: ethernet-phy@0 {
> + /* Realtek RTL8211F (0x001cc916) */
> + reg = <0>;
> + max-speed = <1000>;
> + eee-broken-1000t;
are we in the same situation that we have on the X96 Max where network
dies without eee-broken-1000t?

[...]
> +&usb2_phy0 {
> + phy-supply = <&usb_pwr_en>;
is usb_pwr_en really the phy-supply or is it the vbus-supply of the
USB top control block (&usb node)?

if these three questions are answered then you can add my:
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>


Regards
Martin


[0] https://datasheet.lcsc.com/szlcsc/GL3523-OV3S1_C157363.pdf

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