From mboxrd@z Thu Jan 1 00:00:00 1970 From: grygorii.strashko@ti.com (Grygorii Strashko) Date: Tue, 28 Jun 2016 12:42:45 +0300 Subject: [PATCH] ARM: dts: keystone: specify usb mode explicitly Message-ID: <20160628094245.9521-1-grygorii.strashko@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The USB OTG mode is not supported by Kestone 2 devices, as result, the USB devices enumeration and detection will not work properly when kernel is built with CONFIG_USB_DWC3_DUAL_ROLE=y (default for multi platform build): - it's required to load gadget drivers manually to make host mode work and this confuses current Keystone 2 users - device mode is not working, because port can't detect and switch to peripheral/host mode dynamically. Hence, specify usb mode explicitly in DT: usb0 = "host" for all KS2 devices and usb1 = "peripheral" for K2E. Cc: Sekhar Nori Cc: Roger Quadros Signed-off-by: Grygorii Strashko --- arch/arm/boot/dts/keystone-k2e-evm.dts | 12 ++++++++++-- arch/arm/boot/dts/keystone-k2e.dtsi | 4 ++-- arch/arm/boot/dts/keystone-k2hk-evm.dts | 6 +++++- arch/arm/boot/dts/keystone-k2l-evm.dts | 6 +++++- arch/arm/boot/dts/keystone.dtsi | 4 ++-- 5 files changed, 24 insertions(+), 8 deletions(-) diff --git a/arch/arm/boot/dts/keystone-k2e-evm.dts b/arch/arm/boot/dts/keystone-k2e-evm.dts index 4c32ebc..ae1ebe7 100644 --- a/arch/arm/boot/dts/keystone-k2e-evm.dts +++ b/arch/arm/boot/dts/keystone-k2e-evm.dts @@ -47,18 +47,26 @@ status = "okay"; }; -&usb { +&keystone_usb0 { status = "okay"; }; +&usb0 { + dr_mode = "host"; +}; + &usb1_phy { status = "okay"; }; -&usb1 { +&keystone_usb1 { status = "okay"; }; +&usb1 { + dr_mode = "peripheral"; +}; + &i2c0 { dtt at 50 { compatible = "at,24c1024"; diff --git a/arch/arm/boot/dts/keystone-k2e.dtsi b/arch/arm/boot/dts/keystone-k2e.dtsi index 96b349f..3540a1d 100644 --- a/arch/arm/boot/dts/keystone-k2e.dtsi +++ b/arch/arm/boot/dts/keystone-k2e.dtsi @@ -61,7 +61,7 @@ status = "disabled"; }; - usb1: usb at 25000000 { + keystone_usb1: usb at 25000000 { compatible = "ti,keystone-dwc3"; #address-cells = <1>; #size-cells = <1>; @@ -74,7 +74,7 @@ dma-ranges; status = "disabled"; - dwc3 at 25010000 { + usb1: dwc3 at 25010000 { compatible = "synopsys,dwc3"; reg = <0x25010000 0x70000>; interrupts = ; diff --git a/arch/arm/boot/dts/keystone-k2hk-evm.dts b/arch/arm/boot/dts/keystone-k2hk-evm.dts index b38b344..2156ff9 100644 --- a/arch/arm/boot/dts/keystone-k2hk-evm.dts +++ b/arch/arm/boot/dts/keystone-k2hk-evm.dts @@ -83,10 +83,14 @@ status = "okay"; }; -&usb { +&keystone_usb0 { status = "okay"; }; +&usb0 { + dr_mode = "host"; +}; + &aemif { cs0 { #address-cells = <2>; diff --git a/arch/arm/boot/dts/keystone-k2l-evm.dts b/arch/arm/boot/dts/keystone-k2l-evm.dts index 7f9c2e9..056b42f 100644 --- a/arch/arm/boot/dts/keystone-k2l-evm.dts +++ b/arch/arm/boot/dts/keystone-k2l-evm.dts @@ -32,10 +32,14 @@ status = "okay"; }; -&usb { +&keystone_usb0 { status = "okay"; }; +&usb0 { + dr_mode = "host"; +}; + &i2c0 { dtt at 50 { compatible = "at,24c1024"; diff --git a/arch/arm/boot/dts/keystone.dtsi b/arch/arm/boot/dts/keystone.dtsi index e34b226..96c9943 100644 --- a/arch/arm/boot/dts/keystone.dtsi +++ b/arch/arm/boot/dts/keystone.dtsi @@ -188,7 +188,7 @@ status = "disabled"; }; - usb: usb at 2680000 { + keystone_usb0: usb at 2680000 { compatible = "ti,keystone-dwc3"; #address-cells = <1>; #size-cells = <1>; @@ -201,7 +201,7 @@ dma-ranges; status = "disabled"; - dwc3 at 2690000 { + usb0: dwc3 at 2690000 { compatible = "synopsys,dwc3"; reg = <0x2690000 0x70000>; interrupts = ; -- 2.9.0