Hello, I get m8xxhci.c last release form Brad Parker's page http://www.heeltoe.com/usb/ppc <http://www.heeltoe.com/usb/ppc> and I have modificated to use on the MPC823 FADS board. This drivers has also Roman Weissgaerber changes.
I have done the following modifications: 1.- At the begin of the file: #ifdef CONFIG_MYBOARD #define USE_PA5_CLK3_USBCLK /* 48mhz clock via clk3 */ #define USE_TIMER1_FOR_SOF #endif 2.-I have loaded the microcode patch. 3.-I put TIMER 1 output (PA6) in the DRQ0 input and connect it to PC15 After booting Linux I have the following mesages: ........ m8xxhci: initializing controller m8xxhci_setup() usb.c: new USB bus registered, assigned bus number 1 m8xxhci_start_controller() m8xxhci: USING CLK2 for USB clock! m8xxhci: ring sizes: rx 60, tx 10 size 0x18 index 0xa00 size 0x1e0 index 0xa38 size 0x50 index 0xc20 PQUCODE: USB SOF patch installed m8xxhci: enable USB controller m8xxhci_timer_setup() m8xxhci: timer bytes/count 0.25 m8xxhci: USING TIMER1 FOR SOF! m8xxhci: timer1 started m8xxhci: usb bus is NOT idle Product: USB MPC8xx Root Hub SerialNumber: ff000a00 hub.c: USB hub found hub.c: 1 port detected rh_submit_urb() int pipe rh_port_power(1) m8xxhci: initializing done and when i connect a device ............ idle_bus() 1; d+ zero, d- one, connect lo-sp rh_port_reset(1) hub.c: new USB device m8xxhci-1, assigned address 2 usb_control/bulk_msg: timeout unlink_urb(urb=c0552f50,qtype=2) status -115 unlink_urb(urb=c0552f50) done usb.c: USB device not accepting new address=2 (error=-110) m8xxhci_free_dev(usb_dev=c049d600) m8xxhci_free_dev(dev=c049d600) done rh_port_reset(1) hub.c: new USB device m8xxhci-1, assigned address 3 usb_control/bulk_msg: timeout unlink_urb(urb=c0552f50,qtype=2) status -115 unlink_urb(urb=c0552f50) done usb.c: USB device not accepting new address=3 (error=-110) m8xxhci_free_dev(usb_dev=c049d600) m8xxhci_free_dev(dev=c049d600) done rh_port_enable(0) .............. may i ask you a few questions about m8xxhci.c driver : 1) what do the define POLL_FOR_HUB stands for and should i use it ? 2) is it correct to include hcd.o + hub.o + usb.o + usb-debug.o to make usbdrv.o in the kernel ? 3)Is the behavior of the driver correct according to the trace above if no data goes out of MPC885 USB pins ? What can prevent data to go out ? 4) is it correct to include your driver in the kernel ? (and not run it as an external module) ? 5) i try this driver with SOF generated by micro-patch : -> should this SOF automaticaly sent on the PPC usb tx data line as soon as a device is connected ? -> when you plug a usb device (keyboard) what is the first thing the driver must do ? send a setup command ? (I try to see when you write this command in a BD but i can't find it ) 6) can this driver drive mass storage device (selected by CONFIG_USB_STORAGE kernel parameter) ? 76) when we use USB_UPATCH how do behave the CPM ? does it generate SOF continuously ? how do we tell the CPM to start or stop the SOF transmission ? Thank you very much for any reply Best regards -------------- next part -------------- An HTML attachment was scrubbed... URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20050623/62998d3e/attachment.htm -------------- next part -------------- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.323 / Virus Database: 267.7.11/26 - Release Date: 22/06/2005
