I followed the instructions on http://www.wiki.xilinx.com/Zynq+Linux+USB+Device+Driver to configure the kernel, and set the device tree to "peripheral" mode. I built the image.ub, and boot it on my custom hardware.
Kernel initialization shows that the USB ULPI PHY can be properly detected.
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
usbcore: registered new interface driver usb-storage
ULPI transceiver vendor/product ID 0x0424/0x0007
Found SMSC USB3320 ULPI transceiver.
ULPI integrity check: passed.
After logging in, I follow the instructions under "Testing -> Device Mode -> Mass storage Gadget" to try to configure the USB as a USB peripheral mass storage device. I get the following:
petalinux-7814-10g login: root
Password:
login[892]: root login on 'ttyPS0'
root@petalinux-7814-10g:~# cd /lib/modules/4.0.0-xilinx/kernel/fs/configfs/
root@petalinux-7814-10g:/lib/modules/4.0.0-xilinx/kernel/fs/configfs# insmod configfs.ko
root@petalinux-7814-10g:/lib/modules/4.0.0-xilinx/kernel/fs/configfs# cd ../../drivers/usb/gadget/
root@petalinux-7814-10g:/lib/modules/4.0.0-xilinx/kernel/drivers/usb/gadget# insmod libcomposite.ko
root@petalinux-7814-10g:/lib/modules/4.0.0-xilinx/kernel/drivers/usb/gadget# cd function/
root@petalinux-7814-10g:/lib/modules/4.0.0-xilinx/kernel/drivers/usb/gadget/function# insmod usb_f_mass_storage.ko
root@petalinux-7814-10g:/lib/modules/4.0.0-xilinx/kernel/drivers/usb/gadget/function# dd if=/dev/zero of=/tmp/mydev count=10 bs=1M
10+0 records in
10+0 records out
root@petalinux-7814-10g:/lib/modules/4.0.0-xilinx/kernel/drivers/usb/gadget/function# mount -t configfs none /sys/kernel/config
root@petalinux-7814-10g:/lib/modules/4.0.0-xilinx/kernel/drivers/usb/gadget/function# cd /sys/kernel/config/usb_gadget
root@petalinux-7814-10g:/sys/kernel/config/usb_gadget# mkdir g1
root@petalinux-7814-10g:/sys/kernel/config/usb_gadget# echo "64" > bMaxPacketSize0
-sh: can't create bMaxPacketSize0: Permission denied
root@petalinux-7814-10g:/sys/kernel/config/usb_gadget# echo "0x200" > bcdUSB
-sh: can't create bcdUSB: Permission denied
root@petalinux-7814-10g:/sys/kernel/config/usb_gadget# echo "0x100" > bcdDevice
-sh: can't create bcdDevice: Permission denied
root@petalinux-7814-10g:/sys/kernel/config/usb_gadget# echo "0x03FD" > idVendor
-sh: can't create idVendor: Permission denied
root@petalinux-7814-10g:/sys/kernel/config/usb_gadget# echo "0x0500" > idProduct
-sh: can't create idProduct: Permission denied
root@petalinux-7814-10g:/sys/kernel/config/usb_gadget# mkdir functions/mass_storage.ms0
mkdir: can't create directory 'functions/mass_storage.ms0': No such file or directory
root@petalinux-7814-10g:/sys/kernel/config/usb_gadget# mkdir configs/c1.1
mkdir: can't create directory 'configs/c1.1': No such file or directory
root@petalinux-7814-10g:/sys/kernel/config/usb_gadget# echo /tmp/mydev > functions/mass_storage.ms0/lun.0/file
-sh: can't create functions/mass_storage.ms0/lun.0/file: nonexistent directory
root@petalinux-7814-10g:/sys/kernel/config/usb_gadget# echo 1 > functions/mass_storage.ms0/lun.0/removable
-sh: can't create functions/mass_storage.ms0/lun.0/removable: nonexistent directory
root@petalinux-7814-10g:/sys/kernel/config/usb_gadget# ln -s functions/mass_storage.ms0 configs/c1.1/
ln: configs/c1.1/: No such file or directory
root@petalinux-7814-10g:/sys/kernel/config/usb_gadget# echo "ci_hdrc.0" > UDC
-sh: can't create UDC: Permission denied
To try to debug, I tried to build a PetaLinux 2015.4 image.ub using the ZC702 BSP downloaded from http://www.xilinx.com/support/download/index.html/content/xilinx/en/downloadNav/embedded-design-tools/2015-4.html. The default BSP config met the requirements specified in http://www.wiki.xilinx.com/Zynq+Linux+USB+Device+Driver. When I built image.ub, and ran on my ZC702 eval board, the kernel hangs after displaying at “zynq-ocm f800c000.ocmc: ZYNQ OCM pool: 256 KiB @ 0xf0080000”. The image.ub that came with the eval board did not have the usb_f_mass_storage.ko module.
I would like to run the USB mass storage device on either my custom board or the ZC702, and have it be able to be recognized as a USB mass storage device on my PC.
Does anyone know what I am doing wrong?
Does anyone have a ZC702 image.ub that can run the USB mass storage device?
Is there an PetaLinux 2015.4 image.ub I can use on my ZC702 that will run the USB mass storage device
