Winy,
Can you please send me your .config file from the kernel you compiled? Sincerely, Chase Maupin Software Applications Catalog DSP Products e-mail: [EMAIL PROTECTED] phone: (281) 274-3285 ________________________________ From: winy [mailto:[EMAIL PROTECTED] Sent: Thursday, December 13, 2007 7:59 AM To: Maupin, Chase; 'davinci-linux-open-source' Subject: RE: Unable to detect USB(pen drive) while booting with u-boot 1.2.0 Pls find the answers inline. Regards, Winy Verma Embedded Engineer - Embedded Division eInfochips Limited Ext no. 215 ________________________________ From: Maupin, Chase [mailto:[EMAIL PROTECTED] Sent: Thursday, December 13, 2007 7:16 PM To: winy Subject: RE: Unable to detect USB(pen drive) while booting with u-boot 1.2.0 Winy, Can you please clarify/check the following: 1. What EVM board are you using or is this a custom board? I am using customized board "Davinci Prototype Board" - DVPB, which is derivative of DVEVM board. 2. What kernel are you using? Which LSP did you install to obtain the kernel? I am using LSP 1.20 to obtain the kernel. 3. Do you have "SCSI disk support" enabled under the "SCSI device support" section? Yes. I did it during configuration of the kernel. 4. If you unplug the pen drive after boot and re-insert it is the USB pen drive detected? No pen drive is not detected, even after re-inserting USB pen drive after boot up. 5. From you output it appears that you are using a USB hub, does that hub require a separate power supply? I am using only USB pen drive. 6. Lastly, if you do not use the HUB and instead plug the pen drive in directly is it recognized? I am using pen-drive by directly inserting in the board, no HUB is used for this purpose. Thanx a lot, for your prompt reply Sincerely, Chase Maupin Software Applications Catalog DSP Products e-mail: [EMAIL PROTECTED] phone: (281) 274-3285 ________________________________ From: winy [mailto:[EMAIL PROTECTED] Sent: Thursday, December 13, 2007 12:16 AM To: Maupin, Chase; 'davinci-linux-open-source' Subject: RE: Unable to detect USB(pen drive) while booting with u-boot 1.2.0 Hello Maupin, Thanks for the reply. The log of the output of lsmod when board has booted up is attached. It shows that no module is loaded at that instance. But with this configuration, I am able to detect sd card, hard disk etc. I previously worked with u-boot 1.1.3, in that case with the same kernel and ubl code , I was able to detect usb, sd card & other peripherals, on board boot up. By comparing the logs of kernel booting when u-boot 1.1.3 was flashed and in another case when u-boot 1.20 was flashed, the first line where I can see difference related to usb is "usb 2-1: new high speed USB device using musb_hdrc and address 2 scsi0 : SCSI emulation for USB Mass Storage devices" Hence, I can derive that while board boots up, usb is not able to draw power from it. Please have a look at the provided log and provide me with your inputs. Regards, Winy Verma Embedded Engineer - Embedded Division eInfochips Limited Ext no. 215 ________________________________ From: Maupin, Chase [mailto:[EMAIL PROTECTED] Sent: Wednesday, December 12, 2007 7:14 PM To: winy; davinci-linux-open-source Subject: RE: Unable to detect USB(pen drive) while booting with u-boot 1.2.0 Winy, Are the USB modules loaded on your system. i.e. usb_storage. Can you please provide the output of lsmod on the board when it has booted up? Sincerely, Chase Maupin Software Applications Catalog DSP Products e-mail: [EMAIL PROTECTED] phone: (281) 274-3285 ________________________________ From: [EMAIL PROTECTED] om [mailto:[EMAIL PROTECTED] ncidsp.com] On Behalf Of winy Sent: Wednesday, December 12, 2007 6:45 AM To: 'davinci-linux-open-source' Subject: Re: Unable to detect USB(pen drive) while booting with u-boot 1.2.0 Hello all, I am unable to detect USB mass storage device ( pen drive) which is inserted in the davinci board, when board boots up. This board is flashed with u-boot 1.2.0 In the u-boot1.2.0 source code, in .doc/ README.usb document, it is mentioned that "The USB (at least the USB UHCI) needs a frame list (4k), transfer descriptor and queue headers which are all located in the main memory. The UHCI allocates every millisecond the PCI bus and reads the current frame pointer. This may cause to crash the OS during boot. So the USB_MUST_ be stopped during OS boot. This is the reason, why the USB is NOT automatically started during start-up. If someone needs the USB he has to start it and should therefore be aware that he had to stop it before booting the OS." Also, the configuration parameters to be used are, CONFIG_CMD_USB enables basic USB support and the usb command CONFIG_USB_UHCI defines the low level part .A low level part must be defined if using CONFIG_CMD_USB CONFIG_USB_KEYBOARD enables the USB Keyboard CONFIG_USB_STORAGE enables the USB storage devices I have tried enabling above parameters, but the code was still unable to detect the usb storage device. It would be really very helpful, if someone could give me hint to the solution, as to which files and parameters should I manipulate. Thanx in advance for the help !! Regards, Winy Verma -- eInfochips Business Disclaimer: This message may contain confidential, proprietary or legally Privileged information. 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