On STi platforms, all clocks are enabled by BOOTROM, so CONFIG_CLK is not set as no clock driver for STI exists.
As ehci-generic and ohci-generic drivers are used on platforms where CONFIG_CLK is set, clk_get_bulk() returns-ENOSYS in case of stih410-b2260. To avoid this error, add fixed clocks for ehci and ohci nodes for stih410-b2260 to fix the following errors:
Bus usb@9a03c00: ohci_generic usb@9a03c00: Failed to get clocks (ret=-19) Port not available. Bus usb@9a03e00: ehci_generic usb@9a03e00: Failed to get clocks (ret=-19) Port not available. Bus usb@9a83c00: ohci_generic usb@9a83c00: Failed to get clocks (ret=-19) Port not available. Bus usb@9a83e00: ehci_generic usb@9a83e00: Failed to get clocks (ret=-19) Port not available. scanning bus dwc3@9900000 for devices... 1 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found
Signed-off-by: Patrice Chotard patrice.chotard@foss.st.com Cc: Marek Vasut marex@denx.de ---
(no changes since v1)
arch/arm/dts/stih410-b2260-u-boot.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/arch/arm/dts/stih410-b2260-u-boot.dtsi b/arch/arm/dts/stih410-b2260-u-boot.dtsi index 3b080ac7a1b..e9d7ec92281 100644 --- a/arch/arm/dts/stih410-b2260-u-boot.dtsi +++ b/arch/arm/dts/stih410-b2260-u-boot.dtsi @@ -14,20 +14,30 @@ }; };
+ clk_usb: clk-usb { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <100000000>; + }; + ohci0: usb@9a03c00 { compatible = "generic-ohci"; + clocks = <&clk_usb>; };
ehci0: usb@9a03e00 { compatible = "generic-ehci"; + clocks = <&clk_usb>; };
ohci1: usb@9a83c00 { compatible = "generic-ohci"; + clocks = <&clk_usb>; };
ehci1: usb@9a83e00 { compatible = "generic-ehci"; + clocks = <&clk_usb>; }; }; };