Thank you for your reply,
I use a boad similar to fads and try to make m8xxhci.c driver work ( i
connect the CLK3 on PA5 and timer 1 exit on PA6).
The driver detects correctly the device on the USB bus, but no data goes out
on the usb data out pins of MPC885.
Here is the trace i get :
........
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 :
0) is it correct to include hcd.o + hub.o + usb.o + usb-debug.o to make
usbdrv.o in the kernel ? and is it correct to define USE_TIMER1_FOR_SOF and
USE_PA5_CLK3_USBCLK ?
1)Is the behavior of the driver correct according to the trace above if no
data goes out of MPC885 USB pins ?
2) is it correct to include your driver in the kernel ? (and not run it as
an external module) ?
3) i try your driver with SOF generated by software : my device is seen, bd
are filled with SOF and setup command, and i regularly go into
prcess_done_tx_bds(), but no data goes out on the PPC usb tx data line
-> what can prevent data to go out ?
4) i try your 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 )
5) can your driver drive mass storage device (selected by CONFIG_USB_STORAGE
kernel parameter) ?
6) 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
----- Original Message -----
From: "IGOR LURI" <[EMAIL PROTECTED]>
To: "trichec" <[EMAIL PROTECTED]>; "LINUX-USB-DEVEL (Correo
electrónico)" <linux-usb-devel@lists.sourceforge.net>
Sent: Friday, February 04, 2005 9:40 AM
Subject: RE: USB host controller on MPC823 FADS board
Hi,
You have to configure Linux kernel with CONFIG_UCODE_PATCH.
In the file arch/ppc/8xx_io/micropatch.c you can find this some patches,
including USB SOF patch.
#ifdef USE_USB_SOF_PATCH
#define PATCH_DEFINED
uint patch_2000[] = {
0x7fff0000,
0x7ffd0000,
0x7ffb0000,
0x49f7ba5b,
0xba383ffb,
0xf9b8b46d,
0xe5ab4e07,
0xaf77bffe,
0x3f7bbf79,
0xba5bba38,
0xe7676076,
0x60750000
};
uint patch_2f00[] = {
0x3030304c,
0xcab9e441,
0xa1aaf220
};
#endif
Igor Luri Bravo
Tecnico I+D Software
Fagor Automation S. Coop.
P. O. Box 144
E-20500 Mondragón-Arrasate
Tel. ++34 943 71 92 00 - ++34 943 03 98 00
Fax. ++34 943 79 17 12
www.fagorautomation.com <http://www.fagorautomation.com>
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-----Mensaje original-----
De: trichec [SMTP:[EMAIL PROTECTED]
Enviado el: jueves, 03 de febrero de 2005 16:25
Para: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Asunto: USB host controller on MPC823 FADS board
Hello,
May I ask you a few questions as i have to develop a host usb V2.0
driver for PowerPC 885 ?
I get m8xxhci-1.4 last package from http://www.heeltoe.com/usb/ppc
<http://www.heeltoe.com/usb/ppc> , and get
- m8xxhci.c + m9xxhci.h + diffs.ep_bsp
1) you say that a microcode patch has to be installed : it is
contained in the ppc-usb.tar.gz file ?
how do we install this patch ? (just copy all
driver\arch\ppc\8xx_io\ files and define
CONFIG_UCODE_PATCH
2) have you tried to enhance your file to use USB V2.0 on MPC885 ?
(do we just have to change frequency on PC15 pin ?)
Best regards
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