hello, I am using a Jetson nano B01 board and a MCS9990 PCIe-to-USB card to verify if it works, since I am planing to design a customized carrier board with more USB2.0 ports to avoid USB2.0 bandwidth issue.
when connect the MCS9990 board, a standard PCIe card with M2 KeyE converter cable, found below message:
nano@nano-desktop : ~ $ lspci
00:01.0 PCI bridge: NVIDIA Corporation Device 0fae (rev a1)
00:02.0 PCI bridge: NVIDIA Corporation Device 0faf (rev a1)
01:00.0 USB controller: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4‐Port USB 2.0 Host Controller
01:00.1 USB controller: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4‐Port USB 2.0 Host Controller
01:00.2 USB controller: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4‐Port USB 2.0 Host Controller
01:00.3 USB controller: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4‐Port USB 2.0 Host Controller
01:00.4 USB controller: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4‐Port USB 2.0 Host Controller
01:00.5 USB controller: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4‐Port USB 2.0 Host Controller
01:00.6 USB controller: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4‐Port USB 2.0 Host Controller
01:00.7 USB controller: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4‐Port USB 2.0 Host Controller
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
dmsg message:
[ 1.769943] usb 7-1: new low-speed USB device number 2 using ohci-pci
[ 1.769987] mc-err: (0) csr_afir: EMEM address decode error
[ 1.775606] mc-err: status = 0x2000000e; addr = 0x77d97c00
[ 1.781302] mc-err: secure: no, access-type: read, SMMU fault: none
[ 1.788005] tegra_dvfs: vdd-gpu-vts: registered
[ 1.788694] tegra_core_action core_dvfs_cdev_floor: Tegra CORE DVFS ‘floor cooling device’ registered
The USB device attached to the MCS9990 does not work.
any suggestion to fix it? thx