[PATCH v2 1/3] ARM: dts: sun5i: Enable USB DRC on A10s OLinuxIno Micro

[PATCH v2 1/3] ARM: dts: sun5i: Enable USB DRC on A10s OLinuxIno Micro

[Hans de Goede]

Enable the otg/drc usb controller on the A10s OLinuxIno Micro.

Note the A10s OlinuxIno Micro always has some voltage on its otg power
pin, even if the usb-vbus0-regulator is disabled, the leaked voltage is
enough to make vbus-det always report 1, so we do not use vbus-det on
this board.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
Changes in v2:
-Address usb0_vbus_pin_a node by reference instead of by full path
---
 arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts | 30 +++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
index 7b26e17..5a422c1 100644
--- a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
@@ -196,6 +196,10 @@
 	status = "okay";
 };
 
+&otg_sram {
+	status = "okay";
+};
+
 &pio {
 	mmc0_cd_pin_olinuxino_micro: mmc0_cd_pin at 0 {
 		allwinner,pins = "PG1";
@@ -224,6 +228,18 @@
 		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
 		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
 	};
+
+	usb0_id_detect_pin: usb0_id_detect_pin at 0 {
+		allwinner,pins = "PG12";
+		allwinner,function = "gpio_in";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+	};
+};
+
+&reg_usb0_vbus {
+	gpio = <&pio 6 11 GPIO_ACTIVE_HIGH>; /* PG11 */
+	status = "okay";
 };
 
 &reg_usb1_vbus {
@@ -250,8 +266,20 @@
 	status = "okay";
 };
 
+&usb_otg {
+	dr_mode = "otg";
+	status = "okay";
+};
+
+&usb0_vbus_pin_a {
+	allwinner,pins = "PG11";
+};
+
 &usbphy {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb0_id_detect_pin>;
+	usb0_id_det-gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
+	usb0_vbus-supply = <&reg_usb0_vbus>;
 	usb1_vbus-supply = <&reg_usb1_vbus>;
 	status = "okay";
 };
-
-- 
2.4.3

[PATCH v2 2/3] ARM: dts: sun5i: Enable USB DRC on A13 OLinuxIno

[Hans de Goede]

From: Mark Janssen <mark@sig-io.nl>

Enable the otg/drc usb controller on the A13 OLinuxIno.

Signed-off-by: Mark Janssen <mark@sig-io.nl>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
Changes in v2:
-Address usb0_vbus_pin_a node by reference instead of by full path
---
 arch/arm/boot/dts/sun5i-a13-olinuxino.dts | 37 +++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
index 4232400..b3c234c 100644
--- a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
+++ b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
@@ -159,6 +159,10 @@
 	status = "okay";
 };
 
+&otg_sram {
+	status = "okay";
+};
+
 &pio {
 	mmc0_cd_pin_olinuxino: mmc0_cd_pin at 0 {
 		allwinner,pins = "PG0";
@@ -174,6 +178,20 @@
 		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
 	};
 
+	usb0_id_detect_pin: usb0_id_detect_pin at 0 {
+		allwinner,pins = "PG2";
+		allwinner,function = "gpio_in";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+	};
+
+	usb0_vbus_detect_pin: usb0_vbus_detect_pin at 0 {
+		allwinner,pins = "PG1";
+		allwinner,function = "gpio_in";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_PULL_DOWN>;
+	};
+
 	usb1_vbus_pin_olinuxino: usb1_vbus_pin at 0 {
 		allwinner,pins = "PG11";
 		allwinner,function = "gpio_out";
@@ -182,6 +200,11 @@
 	};
 };
 
+&reg_usb0_vbus {
+	status = "okay";
+	gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
+};
+
 &reg_usb1_vbus {
 	pinctrl-0 = <&usb1_vbus_pin_olinuxino>;
 	gpio = <&pio 6 11 GPIO_ACTIVE_HIGH>;
@@ -194,7 +217,21 @@
 	status = "okay";
 };
 
+&usb_otg {
+	dr_mode = "otg";
+	status = "okay";
+};
+
+&usb0_vbus_pin_a {
+	allwinner,pins = "PG12";
+};
+
 &usbphy {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
+	usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
+	usb0_vbus_det-gpio = <&pio 6 1 GPIO_ACTIVE_HIGH>; /* PG1 */
+	usb0_vbus-supply = <&reg_usb0_vbus>;
 	usb1_vbus-supply = <&reg_usb1_vbus>;
 	status = "okay";
 };
-- 
2.4.3

[PATCH v2 3/3] ARM: dts: sun8i: Enable USB DRC on Ippo Q8H-A33 tablet

[Hans de Goede]

Enable the otg/drc usb controller on the Ippo Q8H-A33 tablet, for now it
is enabled in host-only mode, because true OTG support requires support
for detecting and enabling Vbus through the axp221 pmic.

For this to work the Vbus on the port must be enabled by u-boot,
or a powered hub must be used.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
Changes in v2:
-Add a FIXME comment to the usb_otg block in the dts, pointing out the need
 to add full otg support once we get axp22x pmic support for a33 based devices
---
 arch/arm/boot/dts/sun8i-a33-ippo-q8h-v1.2.dts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-a33-ippo-q8h-v1.2.dts b/arch/arm/boot/dts/sun8i-a33-ippo-q8h-v1.2.dts
index 8bb75ee..a438975 100644
--- a/arch/arm/boot/dts/sun8i-a33-ippo-q8h-v1.2.dts
+++ b/arch/arm/boot/dts/sun8i-a33-ippo-q8h-v1.2.dts
@@ -116,3 +116,18 @@
 	pinctrl-0 = <&r_uart_pins_a>;
 	status = "okay";
 };
+
+/*
+ * FIXME for now we only support host mode and rely on u-boot to have
+ * turned on Vbus which is controlled by the axp223 pmic on the board.
+ *
+ * Once we have axp223 support we should switch to fully supporting otg.
+ */
+&usb_otg {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&usbphy {
+	status = "okay";
+};
-- 
2.4.3

[linux-sunxi] [PATCH v2 1/3] ARM: dts: sun5i: Enable USB DRC on A10s OLinuxIno Micro

[Michal Suchanek]

Hello,

On 31 July 2015 at 14:53, Hans de Goede <hdegoede@redhat.com> wrote:
> Enable the otg/drc usb controller on the A10s OLinuxIno Micro.
>
> Note the A10s OlinuxIno Micro always has some voltage on its otg power
> pin, even if the usb-vbus0-regulator is disabled, the leaked voltage is
> enough to make vbus-det always report 1, so we do not use vbus-det on
> this board.

What board revision do you have?

Also does this not go down when you connect a device which draws power?

It is useless for self-powered device detection, though :-s

Still the Olinuxino is not battery powered normally so powering the
bus at all times is probably ok.

Thanks

Michal

[linux-sunxi] [PATCH v2 1/3] ARM: dts: sun5i: Enable USB DRC on A10s OLinuxIno Micro

[Hans de Goede]

Hi,

On 31-07-15 16:13, Michal Suchanek wrote:
> Hello,
>
> On 31 July 2015 at 14:53, Hans de Goede <hdegoede@redhat.com> wrote:
>> Enable the otg/drc usb controller on the A10s OLinuxIno Micro.
>>
>> Note the A10s OlinuxIno Micro always has some voltage on its otg power
>> pin, even if the usb-vbus0-regulator is disabled, the leaked voltage is
>> enough to make vbus-det always report 1, so we do not use vbus-det on
>> this board.
>
> What board revision do you have?

Rev C.

> Also does this not go down when you connect a device which draws power?

No it does not, the leaked power is enough to fully power some
USB devices (but not others, where as making the Vbus enable pin
high results in enough power for all normal USB devices).

> It is useless for self-powered device detection, though :-s
>
> Still the Olinuxino is not battery powered normally so powering the
> bus at all times is probably ok.

We are note enabling the regulator there is simply some way for 5V
DC to get to the otg connector even with the regulator disabled.

Regards,

Hans

[PATCH v2 1/3] ARM: dts: sun5i: Enable USB DRC on A10s OLinuxIno Micro

[Maxime Ripard]

On Fri, Jul 31, 2015 at 02:53:36PM +0200, Hans de Goede wrote:
> Enable the otg/drc usb controller on the A10s OLinuxIno Micro.
> 
> Note the A10s OlinuxIno Micro always has some voltage on its otg power
> pin, even if the usb-vbus0-regulator is disabled, the leaked voltage is
> enough to make vbus-det always report 1, so we do not use vbus-det on
> this board.
> 
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Applied, thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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[PATCH v2 2/3] ARM: dts: sun5i: Enable USB DRC on A13 OLinuxIno

[Maxime Ripard]

On Fri, Jul 31, 2015 at 02:53:37PM +0200, Hans de Goede wrote:
> From: Mark Janssen <mark@sig-io.nl>
> 
> Enable the otg/drc usb controller on the A13 OLinuxIno.
> 
> Signed-off-by: Mark Janssen <mark@sig-io.nl>
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Applied, thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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[PATCH v2 3/3] ARM: dts: sun8i: Enable USB DRC on Ippo Q8H-A33 tablet

[Maxime Ripard]

On Fri, Jul 31, 2015 at 02:53:38PM +0200, Hans de Goede wrote:
> Enable the otg/drc usb controller on the Ippo Q8H-A33 tablet, for now it
> is enabled in host-only mode, because true OTG support requires support
> for detecting and enabling Vbus through the axp221 pmic.
> 
> For this to work the Vbus on the port must be enabled by u-boot,
> or a powered hub must be used.
> 
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Applied, thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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