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| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2016-08-31 23:29:59 +0300 |
|---|---|---|
| committer | Santosh Shilimkar <ssantosh@kernel.org> | 2016-08-31 23:29:59 +0300 |
| commit | 644978440c7f621281a7b068b92a12250e8d4793 (patch) | |
| tree | 58b991394966d1053662a0e035717dd3dc6a8ab8 /arch/arm/boot | |
| parent | 29b4817d4018df78086157ea3a55c1d9424a7cfc (diff) | |
| download | linux-644978440c7f621281a7b068b92a12250e8d4793.tar.xz | |
ARM: dts: keystone: specify usb mode explicitly
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 <nsekhar@ti.com>
Cc: Roger Quadros <rogerq@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Diffstat (limited to 'arch/arm/boot')
| -rw-r--r-- | arch/arm/boot/dts/keystone-k2e-evm.dts | 12 | ||||
| -rw-r--r-- | arch/arm/boot/dts/keystone-k2e.dtsi | 4 | ||||
| -rw-r--r-- | arch/arm/boot/dts/keystone-k2hk-evm.dts | 6 | ||||
| -rw-r--r-- | arch/arm/boot/dts/keystone-k2l-evm.dts | 6 | ||||
| -rw-r--r-- | 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 4c32ebc1425a..ae1ebe7ee021 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@50 { compatible = "at,24c1024"; diff --git a/arch/arm/boot/dts/keystone-k2e.dtsi b/arch/arm/boot/dts/keystone-k2e.dtsi index 9a51b8c88581..497c417db5b6 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@25000000 { + keystone_usb1: usb@25000000 { compatible = "ti,keystone-dwc3"; #address-cells = <1>; #size-cells = <1>; @@ -74,7 +74,7 @@ dma-ranges; status = "disabled"; - dwc3@25010000 { + usb1: dwc3@25010000 { compatible = "synopsys,dwc3"; reg = <0x25010000 0x70000>; interrupts = <GIC_SPI 414 IRQ_TYPE_EDGE_RISING>; diff --git a/arch/arm/boot/dts/keystone-k2hk-evm.dts b/arch/arm/boot/dts/keystone-k2hk-evm.dts index b38b3441818b..2156ff92d08f 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 7f9c2e94d605..056b42f99d7a 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@50 { compatible = "at,24c1024"; diff --git a/arch/arm/boot/dts/keystone.dtsi b/arch/arm/boot/dts/keystone.dtsi index 00cb314d5e4d..b93b33f0124a 100644 --- a/arch/arm/boot/dts/keystone.dtsi +++ b/arch/arm/boot/dts/keystone.dtsi @@ -196,7 +196,7 @@ status = "disabled"; }; - usb: usb@2680000 { + keystone_usb0: usb@2680000 { compatible = "ti,keystone-dwc3"; #address-cells = <1>; #size-cells = <1>; @@ -209,7 +209,7 @@ dma-ranges; status = "disabled"; - dwc3@2690000 { + usb0: dwc3@2690000 { compatible = "synopsys,dwc3"; reg = <0x2690000 0x70000>; interrupts = <GIC_SPI 393 IRQ_TYPE_EDGE_RISING>; |