NXP LPC32xx SoC has one USB OTG controller, which is supposed to work with an external phy (default is NXP ISP1301). Practically the USB controller contains 5 subdevices: - host controller 0x3102 0000 -- 0x3102 00FF - OTG controller 0x3102 0100 -- 0x3102 01FF - device controller 0x3102 0200 -- 0x3102 02FF - I2C controller 0x3102 0300 -- 0x3102 03FF - clock controller 0x3102 0F00 -- 0x3102 0FFF The USB controller can be considered as a "bus", because the subdevices above are relatively independent, for example I2C controller is the same as other two general purpose I2C controllers found on SoC. The change is not intended to modify any logic, but it rearranges existing device nodes, in future it is planned to add a USB clock controller device node into the same group. Signed-off-by: Vladimir Zapolskiy <vz@xxxxxxxxx> --- Changes from v1 to v2: - none, new change arch/arm/boot/dts/ea3250.dts | 37 ++++++++++++----------------- arch/arm/boot/dts/lpc32xx.dtsi | 53 ++++++++++++++++++++++++------------------ arch/arm/boot/dts/phy3250.dts | 37 ++++++++++++----------------- 3 files changed, 60 insertions(+), 67 deletions(-) diff --git a/arch/arm/boot/dts/ea3250.dts b/arch/arm/boot/dts/ea3250.dts index 392430b..a4a281f 100644 --- a/arch/arm/boot/dts/ea3250.dts +++ b/arch/arm/boot/dts/ea3250.dts @@ -31,19 +31,6 @@ use-iram; }; - /* Here, choose exactly one from: ohci, usbd */ - ohci@31020000 { - transceiver = <&isp1301>; - status = "okay"; - }; - -/* - usbd@31020000 { - transceiver = <&isp1301>; - status = "okay"; - }; -*/ - /* 128MB Flash via SLC NAND controller */ slc: flash@20020000 { status = "okay"; @@ -130,15 +117,6 @@ clock-frequency = <100000>; }; - i2cusb: i2c@31020300 { - clock-frequency = <100000>; - - isp1301: usb-transceiver@2d { - compatible = "nxp,isp1301"; - reg = <0x2d>; - }; - }; - sd@20098000 { wp-gpios = <&pca9532 5 0>; cd-gpios = <&pca9532 4 0>; @@ -279,3 +257,18 @@ }; }; }; + +/* Here, choose exactly one from: ohci, usbd */ +&ohci /* &usbd */ { + transceiver = <&isp1301>; + status = "okay"; +}; + +&i2cusb { + clock-frequency = <100000>; + + isp1301: usb-transceiver@2d { + compatible = "nxp,isp1301"; + reg = <0x2d>; + }; +}; diff --git a/arch/arm/boot/dts/lpc32xx.dtsi b/arch/arm/boot/dts/lpc32xx.dtsi index ba91b20..c85cf97 100644 --- a/arch/arm/boot/dts/lpc32xx.dtsi +++ b/arch/arm/boot/dts/lpc32xx.dtsi @@ -57,21 +57,37 @@ interrupts = <0x1c 0>; }; - /* - * Enable either ohci or usbd (gadget)! - */ - ohci: ohci@31020000 { - compatible = "nxp,ohci-nxp", "usb-ohci"; - reg = <0x31020000 0x300>; - interrupts = <0x3b 0>; - status = "disabled"; - }; + usb { + #address-cells = <1>; + #size-cells = <1>; + compatible = "simple-bus"; + ranges = <0x0 0x31020000 0x00001000>; - usbd: usbd@31020000 { - compatible = "nxp,lpc3220-udc"; - reg = <0x31020000 0x300>; - interrupts = <0x3d 0>, <0x3e 0>, <0x3c 0>, <0x3a 0>; - status = "disabled"; + /* + * Enable either ohci or usbd (gadget)! + */ + ohci: ohci@0 { + compatible = "nxp,ohci-nxp", "usb-ohci"; + reg = <0x0 0x300>; + interrupts = <0x3b 0>; + status = "disabled"; + }; + + usbd: usbd@0 { + compatible = "nxp,lpc3220-udc"; + reg = <0x0 0x300>; + interrupts = <0x3d 0>, <0x3e 0>, <0x3c 0>, <0x3a 0>; + status = "disabled"; + }; + + i2cusb: i2c@300 { + compatible = "nxp,pnx-i2c"; + reg = <0x300 0x100>; + interrupts = <0x3f 0>; + #address-cells = <1>; + #size-cells = <0>; + pnx,timeout = <0x64>; + }; }; clcd: clcd@31040000 { @@ -207,15 +223,6 @@ status = "disabled"; #pwm-cells = <2>; }; - - i2cusb: i2c@31020300 { - compatible = "nxp,pnx-i2c"; - reg = <0x31020300 0x100>; - interrupts = <0x3f 0>; - #address-cells = <1>; - #size-cells = <0>; - pnx,timeout = <0x64>; - }; }; fab { diff --git a/arch/arm/boot/dts/phy3250.dts b/arch/arm/boot/dts/phy3250.dts index 79a20f7..7d253bb 100644 --- a/arch/arm/boot/dts/phy3250.dts +++ b/arch/arm/boot/dts/phy3250.dts @@ -31,19 +31,6 @@ use-iram; }; - /* Here, choose exactly one from: ohci, usbd */ - ohci@31020000 { - transceiver = <&isp1301>; - status = "okay"; - }; - -/* - usbd@31020000 { - transceiver = <&isp1301>; - status = "okay"; - }; -*/ - clcd@31040000 { status = "okay"; }; @@ -123,15 +110,6 @@ clock-frequency = <100000>; }; - i2cusb: i2c@31020300 { - clock-frequency = <100000>; - - isp1301: usb-transceiver@2c { - compatible = "nxp,isp1301"; - reg = <0x2c>; - }; - }; - ssp0: ssp@20084000 { #address-cells = <1>; #size-cells = <0>; @@ -200,3 +178,18 @@ }; }; }; + +/* Here, choose exactly one from: ohci, usbd */ +&ohci /* &usbd */ { + transceiver = <&isp1301>; + status = "okay"; +}; + +&i2cusb { + clock-frequency = <100000>; + + isp1301: usb-transceiver@2c { + compatible = "nxp,isp1301"; + reg = <0x2c>; + }; +}; -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html