Nishant,
On 11/19/2013 11:05 PM, Nishanth Menon wrote:
>
>
> On 09/24/2013 03:53 AM, Roger Quadros wrote:
>> Provide RESET GPIO and Power regulator for the USB PHY,
>> the USB Host port mode and the PHY device for the controller.
>> Also provide pin multiplexer information for USB host pins.
>>
>> We also relocate omap3_pmx_core pin definations so that they
>> are close to omap3_pmx_wkup pin definations.
>>
>> Signed-off-by: Roger Quadros <rogerq@xxxxxx>
>> ---
>
> just using this thread, but a question ->
>
> I am kernel * master dec8e46 Merge
> tag 'arc-v3.13-rc1-part2' of
> git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
>
> and I see that VAUX2 which supplies USB_1V8[1] is not enabled -> I did
> a quick patch and it did seem to work (Usb keyboard, networking, mouse
> etc on my ehci ports seems to come up good) - any suggestions how we'd
> like to handle this?
It worked for me without your patch. It could be that u-boot is enabling
that regulator for me. I'm on u-boot-v2013.10.
In any case, your patch seems the right thing to do. We should take it in
the rc cycle.
>
> --- a/arch/arm/boot/dts/omap3-beagle-xm.dts
> +++ b/arch/arm/boot/dts/omap3-beagle-xm.dts
> @@ -169,6 +169,14 @@
> bus-width = <8>;
> };
>
> +&vaux2 {
> + regulator-name = "HubPower";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> +};
> +
> +
>
> [1]
> https://github.com/CircuitCo/BeagleBoard-xM-RevC/blob/master/BeagleBoard-xM_revC_SCH.pdf?raw=true
cheers,
-roger
>
>> arch/arm/boot/dts/omap3-beagle-xm.dts | 65 ++++++++++++++++++++++++++++-----
>> 1 files changed, 56 insertions(+), 9 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts b/arch/arm/boot/dts/omap3-beagle-xm.dts
>> index afdb164..b081f5a 100644
>> --- a/arch/arm/boot/dts/omap3-beagle-xm.dts
>> +++ b/arch/arm/boot/dts/omap3-beagle-xm.dts
>> @@ -69,6 +69,23 @@
>> };
>>
>> };
>> +
>> + /* HS USB Port 2 Power */
>> + hsusb2_power: hsusb2_power_reg {
>> + compatible = "regulator-fixed";
>> + regulator-name = "hsusb2_vbus";
>> + regulator-min-microvolt = <3300000>;
>> + regulator-max-microvolt = <3300000>;
>> + gpio = <&twl_gpio 18 0>; /* GPIO LEDA */
>> + startup-delay-us = <70000>;
>> + };
>> +
>> + /* HS USB Host PHY on PORT 2 */
>> + hsusb2_phy: hsusb2_phy {
>> + compatible = "usb-nop-xceiv";
>> + reset-gpios = <&gpio5 19 GPIO_ACTIVE_LOW>; /* gpio_147 */
>> + vcc-supply = <&hsusb2_power>;
>> + };
>> };
>>
>> &omap3_pmx_wkup {
>> @@ -79,6 +96,37 @@
>> };
>> };
>>
>> +&omap3_pmx_core {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <
>> + &hsusbb2_pins
>> + >;
>> +
>> + uart3_pins: pinmux_uart3_pins {
>> + pinctrl-single,pins = <
>> + 0x16e (PIN_INPUT | PIN_OFF_WAKEUPENABLE | MUX_MODE0) /* uart3_rx_irrx.uart3_rx_irrx */
>> + 0x170 (PIN_OUTPUT | MUX_MODE0) /* uart3_tx_irtx.uart3_tx_irtx OUTPUT | MODE0 */
>> + >;
>> + };
>> +
>> + hsusbb2_pins: pinmux_hsusbb2_pins {
>> + pinctrl-single,pins = <
>> + 0x5c0 (PIN_OUTPUT | MUX_MODE3) /* etk_d10.hsusb2_clk */
>> + 0x5c2 (PIN_OUTPUT | MUX_MODE3) /* etk_d11.hsusb2_stp */
>> + 0x5c4 (PIN_INPUT_PULLDOWN | MUX_MODE3) /* etk_d12.hsusb2_dir */
>> + 0x5c6 (PIN_INPUT_PULLDOWN | MUX_MODE3) /* etk_d13.hsusb2_nxt */
>> + 0x5c8 (PIN_INPUT_PULLDOWN | MUX_MODE3) /* etk_d14.hsusb2_data0 */
>> + 0x5cA (PIN_INPUT_PULLDOWN | MUX_MODE3) /* etk_d15.hsusb2_data1 */
>> + 0x1a4 (PIN_INPUT_PULLDOWN | MUX_MODE3) /* mcspi1_cs3.hsusb2_data2 */
>> + 0x1a6 (PIN_INPUT_PULLDOWN | MUX_MODE3) /* mcspi2_clk.hsusb2_data7 */
>> + 0x1a8 (PIN_INPUT_PULLDOWN | MUX_MODE3) /* mcspi2_simo.hsusb2_data4 */
>> + 0x1aa (PIN_INPUT_PULLDOWN | MUX_MODE3) /* mcspi2_somi.hsusb2_data5 */
>> + 0x1ac (PIN_INPUT_PULLDOWN | MUX_MODE3) /* mcspi2_cs0.hsusb2_data6 */
>> + 0x1ae (PIN_INPUT_PULLDOWN | MUX_MODE3) /* mcspi2_cs1.hsusb2_data3 */
>> + >;
>> + };
>> +};
>> +
>> &i2c1 {
>> clock-frequency = <2600000>;
>>
>> @@ -148,15 +196,6 @@
>> power = <50>;
>> };
>>
>> -&omap3_pmx_core {
>> - uart3_pins: pinmux_uart3_pins {
>> - pinctrl-single,pins = <
>> - 0x16e (PIN_INPUT | PIN_OFF_WAKEUPENABLE | MUX_MODE0) /* uart3_rx_irrx.uart3_rx_irrx */
>> - 0x170 (PIN_OUTPUT | MUX_MODE0) /* uart3_tx_irtx.uart3_tx_irtx OUTPUT | MODE0 */
>> - >;
>> - };
>> -};
>> -
>> &uart3 {
>> pinctrl-names = "default";
>> pinctrl-0 = <&uart3_pins>;
>> @@ -166,3 +205,11 @@
>> pinctrl-names = "default";
>> pinctrl-0 = <&gpio1_pins>;
>> };
>> +
>> +&usbhshost {
>> + port2-mode = "ehci-phy";
>> +};
>> +
>> +&usbhsehci {
>> + phys = <0 &hsusb2_phy>;
>> +};
>>
>
>
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