From: Mark Brown broonie@linaro.org
The Arndale has a SMSC USB3503 connected in hardware only mode like a PHY, support it using the usb-nop-xceiv binding.
Note that due to a regrettable decision to use a regulator to represent the reset signal this uses a fixed voltage regulator to do that, there is a plan to use the reset controller binding once that is merged so it does not seem worthwhile to fix the usb-nop-xceiv driver at this point.
Signed-off-by: Mark Brown broonie@linaro.org Tested-by: Tushar Behera tushar.behera@linaro.org --- arch/arm/boot/dts/exynos5250-arndale.dts | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts index 96d528d..2428ffd 100644 --- a/arch/arm/boot/dts/exynos5250-arndale.dts +++ b/arch/arm/boot/dts/exynos5250-arndale.dts @@ -539,4 +539,18 @@ rtc { status = "okay"; }; + + usb_hub_bus { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <0>; + + // SMSC USB3503 connected in hardware only mode as a PHY + usb_hub: usb_hub { + compatible = "smsc,usb3503a"; + + reset-gpios = <&gpx3 5 1>; + connect-gpios = <&gpd1 7 1>; + }; + }; };
From: Mark Brown broonie@linaro.org
While the Linux driver stack is capable of figuring this out for itself document the fact that we really do use the internal PHY even with the directly wired hub on the board to save anyone else having to work this out for themselves.
Signed-off-by: Mark Brown broonie@linaro.org --- arch/arm/boot/dts/exynos5250-arndale.dts | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts index 2428ffd..e477e23 100644 --- a/arch/arm/boot/dts/exynos5250-arndale.dts +++ b/arch/arm/boot/dts/exynos5250-arndale.dts @@ -553,4 +553,8 @@ connect-gpios = <&gpd1 7 1>; }; }; + + usb@12110000 { + usb-phy = <&usb2_phy>; + }; };
On 08/15/13 08:27, Mark Brown wrote:
From: Mark Brownbroonie@linaro.org
The Arndale has a SMSC USB3503 connected in hardware only mode like a PHY, support it using the usb-nop-xceiv binding.
Note that due to a regrettable decision to use a regulator to represent the reset signal this uses a fixed voltage regulator to do that, there is a plan to use the reset controller binding once that is merged so it does not seem worthwhile to fix the usb-nop-xceiv driver at this point.
Signed-off-by: Mark Brownbroonie@linaro.org Tested-by: Tushar Beheratushar.behera@linaro.org
arch/arm/boot/dts/exynos5250-arndale.dts | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts index 96d528d..2428ffd 100644 --- a/arch/arm/boot/dts/exynos5250-arndale.dts +++ b/arch/arm/boot/dts/exynos5250-arndale.dts @@ -539,4 +539,18 @@ rtc { status = "okay"; };
- usb_hub_bus {
compatible = "simple-bus";#address-cells =<1>;#size-cells =<0>;// SMSC USB3503 connected in hardware only mode as a PHYusb_hub: usb_hub {compatible = "smsc,usb3503a";reset-gpios =<&gpx3 5 1>;connect-gpios =<&gpd1 7 1>;};- }; };
Applied, thanks.
Kukjin
linaro-kernel@lists.linaro.org
-
Kukjin Kim -
Mark Brown