Any PCIE to USB bridge board approved?

AI
1

I want to use a PCIE to USB bridge board, then I can connect my USB wireless dongle. Any model/type of this board is confirmed working with AI-G EVB?

2

Hi Zhang.

we haven’t tested any of pcie to usb controller on our AI-G board yet.

i’m going to check that and get back to you soon.

thanks

3

Hi. Zhang.

I’ve tested this item with a small pcie-to-usb board, which uses ‘Renesas Technology Corp. uPD720201 USB 3.0 Host Controller (rev 03)’ chipset.

aig-pcie2usb
aig-pcie2usb1920×1081 315 KB

as you can see, firstly you need to feed 5V power to the board using 5V+/- pin on ai-g board.

(due to ai-g board provides only 3.3v pin in PCIe slot)

currently, AI-G Yocto project does not enable ‘kernel-modules’ in IMAGE_INSTALL env. variable by the way.

thus, simply append it in your local.conf file.

and refer to below kernel options and re-build the kernel.

CONFIG_USB_NET_DRIVERS=m
CONFIG_USB_HID=m
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=m
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=m
CONFIG_USB_PCI=y
CONFIG_USB_DEFAULT_PERSIST=y
CONFIG_USB_AUTOSUSPEND_DELAY=2

CONFIG_USB_XHCI_HCD=m
CONFIG_USB_XHCI_PCI=m
CONFIG_USB_XHCI_PCI_RENESAS=m
CONFIG_USB_XHCI_PLATFORM=m
CONFIG_USB_EHCI_HCD=m
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=m
CONFIG_USB_EHCI_HCD_PLATFORM=m
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
CONFIG_USB_STORAGE=y

after rebuild the project, finally, generate and flash your image into ai-g board.

then you will see like below, same as mine.

root@ai-g-topst:~# lspci
00:00.0 PCI bridge: Synopsys, Inc. Device 750b (rev 01)
01:00.0 USB controller: Renesas Technology Corp. uPD720201 USB 3.0 Host Controller (rev 03)
root@ai-g-topst:~# lsblk
NAME         MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
sda            8:0    1 29.7G  0 disk
-- sda1         8:1    1 29.7G  0 part
mmcblk0      179:0    0  7.3G  0 disk
--mmcblk0p1  179:1    0    2M  0 part
--mmcblk0p2  179:2    0    2M  0 part
--mmcblk0p3  179:3    0   40M  0 part
--mmcblk0p4  179:4    0    4G  0 part /
--mmcblk0p5  179:5    0  200K  0 part
--mmcblk0p6  179:6    0    1M  0 part
--mmcblk0p7  179:7    0    1M  0 part
mmcblk0boot0 179:16   0    4M  1 disk
mmcblk0boot1 179:32   0    4M  1 disk

please reply me for any further question.

thanks