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?
--- 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
> 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>;
> +};
>
--
Regards,
Nishanth Menon
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