Hi,
I am trying the new USB dwc-otg Synopsys driver on my powerpc 405ex board. I
am using the kernel 2.6.30.3 from denx git (head 2.6.30 stable 2009-09-04
snapshot). Previously I was using the USB driver from 2.6.25 kernel. The
driver was unstable and was only working when I enabled some debug prints.
I am moving to the new kernel to get improvement on that USB driver. However, I
have some problems with it. My problem is that probe function is never called
(dwc_otg_driver_probe). The driver init call is done and I can see the debug
print "dwc_otg: version 2.60a 22-NOV-2006" but no more call (n.b. I enabled all
debug print). Initialisation is done in probe function, so, my usb dwc_otg
controller is not initialized. In theory, when module is inserted, init is
called (dwc_otg_driver_init). This init call, register the driver
(platform_driver_register) and, in this registration, configured the probe
function to call (dwc_otg_driver_probe). But as I said, probe is never called.
First, in my setup, I want to use USB in host mode.
My usb-otg portion of my dts file is:
USBOTG0: usb...@ef6c0000 {
compatible = "amcc,usb-otg-405ex",
"amcc,usb-otg";
reg = <0xef6c0000 0x10000>;
interrupt-parent = <&USBOTG0>;
interrupts = <0 1 2>;
#interrupt-cells = <1>;
#address-cells = <0>;
#size-cells = <0>;
interrupt-map = </* USB-OTG */ 0 &UIC2 0x1e
4
/* HIGH-POWER */ 1
&UIC1 0x1a 8
/* DMA */ 2 &UIC0
0xc 4>;
interrupt-map-mask = <0xffffffff>;
};
My USB potion of my kernel config (menuconfig)
Support for host-side USB -> y
USB announce new devices --> y
USB device filesystem --> y
USB device class-devices --> y
USB dynamic USB minor allocation --> y
USB mass storage support --> y
USB gadget support --> y
Maximum VBUS power usage = 500
Synopsys DWC OTG controller
Synopsys DWC OTG internal DMA mode --> y
USB gadget --> M
gadget zero --> M
Ethernet Gadget --> M
RNDIS support --> y
Any help will be appreciated
Thank you,
Sylvain
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