Hi..
I am working on linux pc with kernel 4.4.43. and i want to configure cyclone development board as a device on pci bus.
For that i have prepared usb device driver for cyclone 5 board and loading successfully got prints in dmesg.as follow
Code:
udc_init()
[ 3.635397] **************My Own PCI Driver Starting ****************
[ 3.635398]
[ 3.635398] ******** PCIe to SDHC Bridge Driver initialization started ********
[ 3.635400] sls_usb31_pcie: PCIe Device Vendor ID :: 0x1172.
[ 3.635401] sls_usb31_pcie: PCIe Device Product ID :: 0xe001.
[ 3.635403] sls_usb31_pcie: PCI Device Found Successfully.
[ 3.635413] usbs_udc_probe()
[ 3.635415] sls_usbs_udc31 0000:01:00.0: Entering in to usbs_udc_probe()
[ 3.635416] sls_usbs_udc31 0000:01:00.0: usbs_udc_probe
[ 3.635417] sls_usb31_pcie: AT Starting of sls_usb31_probe......
[ 3.635418] sls_usb31_pcie : Device 0xe001 has been found at bus 1 pdev 0 func 0
[ 3.635449] sls_usb31_pcie: pci_enable_device = 0
[ 3.635450] sls_usb31_pcie: pci_enable_device called successfully...
[ 3.635451] sls_usb31_pcie: Started to read debug information......
[ 3.635451]
[ 3.635454] sls_usb31_pcie: Vendor id: 1172
[ 3.635456] sls_usb31_pcie: Device id: e001
[ 3.635459] sls_usb31_pcie: Device Status: 10
[ 3.635462] sls_usb31_pcie: Command Register : : 100006
[ 3.635462] sls_usb31_pcie: Resources Allocated :
[ 3.635465] sls_usb31_pcie: BAR0 : fbff0000
[ 3.635467] sls_usb31_pcie: BAR1 : 0
[ 3.635470] sls_usb31_pcie: BAR2 : fbfff000
[ 3.635472] sls_usb31_pcie: BAR3 : f4000000
[ 3.635475] sls_usb31_pcie: BAR4 : 0
[ 3.635477] sls_usb31_pcie: BAR5 : 0
[ 3.635480] sls_usb31_pcie: PCI_INTERRUPT_LINE : 5
[ 3.635482] sls_usb31_pcie: PCI_INTERRUPT_PIN : 1
[ 3.635485] sls_usb31_pcie: PCI_MIN_GNT : 0
[ 3.635487] sls_usb31_pcie: PCI_MAX_LAT : 0
[ 3.635490] sls_usb31_pcie: PCI_CACHE_LINE_SIZE : 10
[ 3.635492] sls_usb31_pcie: PCI_LATENCY_TIMER : 0
[ 3.635495] sls_usb31_pcie: PCI_HEADER_TYPE : 0
[ 3.635497] sls_usb31_pcie: PCI_BIST : 0
[ 3.635498] sls_usb31_pcie: End of reading debug information......
[ 3.635498]
[ 3.635500] sls_usb31_pcie: BAR 0 pci_resource_start iomem (0xfbff0000).
[ 3.635500] sls_usb31_pcie: BAR 0 pci_resource_end iomem (0xfbff7fff).
[ 3.635501] sls_usb31_pcie: BAR 0 pci_resource_flags iomem (0x40200).
[ 3.635502] sls_usb31_pcie: BAR 0 pci_resource_len iomem (0x8000).
[ 3.635503] sls_usb31_pcie: BAR 0 is IO Memory....
[ 3.635504] sls_usb31_pcie: BAR 1 pci_resource_start iomem (0x0).
[ 3.635505] sls_usb31_pcie: BAR 1 pci_resource_end iomem (0x0).
[ 3.635506] sls_usb31_pcie: BAR 1 pci_resource_flags iomem (0x0).
[ 3.635507] sls_usb31_pcie: BAR 1 pci_resource_len iomem (0x0).
[ 3.635508] sls_usb31_pcie: BAR 1 is not IO Resource & Memory....
[ 3.635509] sls_usb31_pcie: BAR 2 pci_resource_start iomem (0xfbfff000).
[ 3.635509] sls_usb31_pcie: BAR 2 pci_resource_end iomem (0xfbffffff).
[ 3.635510] sls_usb31_pcie: BAR 2 pci_resource_flags iomem (0x40200).
[ 3.635511] sls_usb31_pcie: BAR 2 pci_resource_len iomem (0x1000).
[ 3.635512] sls_usb31_pcie: BAR 2 is IO Memory....
[ 3.635513] sls_usb31_pcie: BAR 3 pci_resource_start iomem (0xf4000000).
[ 3.635514] sls_usb31_pcie: BAR 3 pci_resource_end iomem (0xf7ffffff).
[ 3.635515] sls_usb31_pcie: BAR 3 pci_resource_flags iomem (0x40200).
[ 3.635516] sls_usb31_pcie: BAR 3 pci_resource_len iomem (0x4000000).
[ 3.635517] sls_usb31_pcie: BAR 3 is IO Memory....
[ 3.635517] sls_usb31_pcie: BAR 4 pci_resource_start iomem (0x0).
[ 3.635518] sls_usb31_pcie: BAR 4 pci_resource_end iomem (0x0).
[ 3.635519] sls_usb31_pcie: BAR 4 pci_resource_flags iomem (0x0).
[ 3.635520] sls_usb31_pcie: BAR 4 pci_resource_len iomem (0x0).
[ 3.635521] sls_usb31_pcie: BAR 4 is not IO Resource & Memory....
[ 3.635522] sls_usb31_pcie: BAR 5 pci_resource_start iomem (0x0).
[ 3.635523] sls_usb31_pcie: BAR 5 pci_resource_end iomem (0x0).
[ 3.635523] sls_usb31_pcie: BAR 5 pci_resource_flags iomem (0x0).
[ 3.635524] sls_usb31_pcie: BAR 5 pci_resource_len iomem (0x0).
[ 3.635525] sls_usb31_pcie: BAR 5 is not IO Resource & Memory....
[ 3.635532] udc->regs: 774000
[ 3.635535] CRA: f0000000
[ 3.635537] CRA: f0000000
[ 3.635540] CRA: f0000000
[ 3.635542] CRA: f0000000
[ 3.635544] CRA: f0000000
[ 3.635547] CRA: f0000000
[ 3.635550] CRA: f0000000
[ 3.635552] CRA: f0000000
[ 3.635600] sls_usb31_pcie: MSI-X Interrupt enabled successfully.
[ 3.635601] sls_usb31_pcie: PCIe MSI-X Interrupt No :: 35.
[ 3.635609] usbs_ep[0].ep_regs: 774200
[ 3.635610] usbs_ep[0].ep.name: ep0-control
[ 3.635611] Default usbs_ep[0].ep.maxpacket: 200
[ 3.635612] ep0-fifo-ss: 200
[ 3.635612] ep0-fifo-hs: 40
[ 3.635613] ep0-fifo-fs: 40
[ 3.635614] ep[1]-dir: 31
[ 3.635615] EP_Base: 7742c0
[ 3.635616] EP Name: ep1
[ 3.635617] Default Ep Maxpacket: 400
[ 3.635617] ep-fifo-ss: 400
[ 3.635625] ep-fifo-ss: 200
[ 3.635625] ep-fifo-ss: 40
[ 3.635626] -------------------------
[ 3.635660] Scratch Reg: 5
[ 3.635663] Dev_int_en: 1e0377
[ 3.635666] Dev_ctrl: f
[ 3.635668] usbs_udc_probe() success
[ 3.635679] sls_usb31_pcie: pci_register_driver successfully.
[ 3.635680] sls_usbs_udc31: SLS USB UDC driver
[ 3.635687] usbs_ep_alloc_request()
[ 3.635689] usbs_udc_set_selfpowered()
[ 3.635694] usbs_match_ep()
[ 3.635695] usbs_match_ep1_in400
[ 3.635618] ep-fifo-ss: 200
[ 3.635619] ep-fifo-ss: 40
[ 3.635620] -------------------------
[ 3.635621] ep[2]-dir: 30
[ 3.635621] EP_Base: 774340
[ 3.635622] EP Name: ep2
[ 3.635623] Default Ep Maxpacket: 400
[ 3.635624] ep-fifo-ss: 400
[ 3.635625] ep-fifo-ss: 200
[ 3.635625] ep-fifo-ss: 40
[ 3.635626] -------------------------
[ 3.635660] Scratch Reg: 5
[ 3.635663] Dev_int_en: 1e0377
[ 3.635666] Dev_ctrl: f
[ 3.635668] usbs_udc_probe() success
[ 3.635679] sls_usb31_pcie: pci_register_driver successfully.
[ 3.635680] sls_usbs_udc31: SLS USB UDC driver
[ 3.635687] usbs_ep_alloc_request()
[ 3.635689] usbs_udc_set_selfpowered()
[ 3.635694] usbs_match_ep()
[ 3.635695] usbs_match_ep1_in
But the problem is whenever i try to load g_zero using command
: $modprobe g_zero
it will some time load successfully and some times gives an error that "NO such device found"
any help would be appreciated.
