Hi,
I am trying to make 4.4 kernel working with old am3517 SOM
(http://www.dave.eu/products/som/texas_instruments/am3505-am3517_lizard).
Most of the peripherals are working know - however I got stuck with
usb ohci driver.
Both USB HS ports are connected to ISP1105, hardware is working with
old 2.6.32 based firmware.
I copied the MUXing (muxing is done by u-boot) and TLL/PHY
initialization from old kernel.
My DT entries are:
/ {
hsusb1_power: hsusb1_power_reg {
compatible = "regulator-fixed";
regulator-name = "hsusb1_vbus";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
hsusb2_power: hsusb2_power_reg {
compatible = "regulator-fixed";
regulator-name = "hsusb2_vbus";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
hsusb1_phy: hsusb1_phy {
compatible = "usb-nop-xceiv";
vcc-supply = <&hsusb1_power>;
};
hsusb2_phy: hsusb2_phy {
compatible = "usb-nop-xceiv";
vcc-supply = <&hsusb2_power>;
};
};
&usbhshost {
port1-mode = "ohci-phy-6pin-datse0";
port2-mode = "ohci-phy-6pin-datse0";
};
&usbhsehci {
status = "disabled";
};
CORE_120M_FCLK clock is enabled.
Interrupts are working and kernel is notified when I plug in usb
drive. However usb device is it not enumerated.
I got following debug messages:
usb usb1-port1: Cannot enable. Maybe the USB cable is bad?
and finally:
usb usb1-port1: unable to enumerate USB device
also I can see log like this:
ohci-omap3 48064400.ohci: GetStatus roothub.portstatus [0] =
0x00120101 PRSC PESC PPS CCS
GetStatus message appears multiple times when usb device is plugged in.
I can see FSLSLINESTATE in TLL_CHANNEL_CONF changes when usb device is
connected:
./devmem2 0x48062040
Read at address 0x48062040 (0xb6f9b040): 0x10000CDB
Can you point me what else should I check to make USB HS working in ohci mode?
Thank you and best regards,
Luke
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