Dear All, Currently I am trying to bring up Linux kernel 2.6.32 on a dev board equipped with S3C6410. I met some problems when attempting to load s3c-hsotg driver together with the g_file_storage kernel module to use the 6410 platform as a usb disk. Basically, the problem is that my Windows host cannot recognize the device correctly and from reading the log, I found that there are many INTknEP interrupts on ep0 and finally the device got suspended. I tried 2.6.35 as well since it is said to have several patches on s3c-hsotg.c. On the other hand, the hsotg code for s3c in uboot appeared to work well since booting with U-Boot, I managed to download a kernel into the dev board using dnw through USB cable. In case you are interested, I have attached the an excerpt of the log captured from the s3c-hsotg kernel driver. And advice or suggestion would be appreciated. Thanks, - Jason log: <7>g_file_storage gadget: ep0-setup, length 8: <7>00000000: 80 06 00 01 00 00 40 00 <7>g_file_storage gadget: get device descriptor <7>s3c-hsotg s3c-hsotg: ep0: req c7960c00: 18@c79d3200, noi=0, zero=1, snok=0 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_start_req: DxEPCTL=0x00028000, ep 0, dir in <7>s3c-hsotg s3c-hsotg: s3c_hsotg_start_req: 1@18/18, 0x00080012 => 0x00000910 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_start_req: DxEPCTL=0x84028000 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_write_fifo: GNPTXSTS=0b0701c0, can=448, to=18, mps 64 <7>s3c-hsotg s3c-hsotg: write 18/18, can_write 448, done 0 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_start_req: DxEPCTL=0x80008000 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_irq: 040e8028 000c0000 (f00c3cd4) retry 6 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_irq: daint=00010001 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_epint: ep0(out) DxEPINT=0x00000018 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_epint: Setup/Timeout <7>s3c-hsotg s3c-hsotg: s3c_hsotg_epint: ep0(in) DxEPINT=0x000000f0 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_epint: B2BSetup/INEPNakEff <7>s3c-hsotg s3c-hsotg: s3c_hsotg_epint: ep0: INTknTXFEmpMsk <7>s3c-hsotg s3c-hsotg: Jason read fifo <4>s3c-hsotg s3c-hsotg: s3c_hsotg_epint: ep0: INTknEP s3c-hsotg s3c-hsotg: s3c_hsotg_epint: ep0: INTknEP <7>s3c-hsotg s3c-hsotg: s3c_hsotg_irq: 04068028 00040000 (f00c3cd4) retry 8 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_irq: daint=00000001 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_epint: ep0(in) DxEPINT=0x000000b0 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_epint: ep0: INTknTXFEmpMsk <7>s3c-hsotg s3c-hsotg: Jason read fifo <4>s3c-hsotg s3c-hsotg: s3c_hsotg_epint: ep0: INTknEP s3c-hsotg s3c-hsotg: s3c_hsotg_epint: ep0: INTknEP <7>s3c-hsotg s3c-hsotg: s3c_hsotg_irq: 04068028 00040000 (f00c3cd4) retry 8 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_irq: daint=00000001 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_epint: ep0(in) DxEPINT=0x000000b0 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_epint: ep0: INTknTXFEmpMsk <7>s3c-hsotg s3c-hsotg: Jason read fifo <4>s3c-hsotg s3c-hsotg: s3c_hsotg_epint: ep0: INTknEP s3c-hsotg s3c-hsotg: s3c_hsotg_epint: ep0: INTknEP <7>s3c-hsotg s3c-hsotg: s3c_hsotg_irq: 04068028 00040000 (f00c3cd4) retry 8 <7>s3c-hsotg s3c-hsotg: s3c_hsotg_irq: daint=00000001 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
