Hi Stefan,
On Sat, 2020-08-01 at 14:25 +0200, Stefan Agner wrote:
Hi Nicolas,
I do have USB MSD boot working with at least two USB flash drives successfully.
I now tried using a USB NVMe enclosure (ICY BOX with a JMicron chip in it). It seems that U-Boot has troubles enumerating the device at first, but "usb reset" helps:
U-Boo 2020.07 (Jul 25 2020 - 06:55:15 +0000)
DRAM: 1.9 GiB RPI 4 Model B (0xb03112) MMC: mmcnr@7e300000: 1, emmc2@7e340000: 0 In: serial Out: serial Err: serial Net: eth0: genet@7d580000 PCIe BRCM: link up, 5.0 Gbps x1 (SSC) startig USB... Bus xhci_pci: Register 5000420 NbrPorts 5 Starting the controller USB XHCI 1.00 scanning bus xhci_pci for devces... Device NOT ready Request Sense returned 02 04 01 4 USB Device(s) found scanning usb for storage devices... 0 Sorage Device(s) found Card did not respond to voltage select! Card did not respond to voltage select!
genet@7d580000 Waiting for PHY auto negotiation to complete... done BOOTP broadcast 1 DHCP client bound to address 192.168.80.226 (3 ms ====> Ctrl+C HassOS> <INTERRUPT> HassOS> usb tree USB device tree: 1 Hub (5 Gb/s, 0mA) | U-Boot XHCI Host Controller | +-2 MassStorage (5 Gb/s, 224mA) | JMicron USB 3.1 Storage Device DD56419884B3E | +-3 Hub (480 Mb/s, 100A) | USB2.0 Hub | +-4 Human Interface (12 Mb/s, 98mA) Logitech USB Receiver
HassOS> ls usb 0:1 HassOS> usb reset resetting USB... Bus xhci_pci: Register 5000420 NbrPorts 5 Starting the controller USB XHCI 1.00 scanning bus xhci_ci for devices... 4 USB Device(s) found scanning usb for storage devices... 1 Storage Device(s) found HassOS>ls usb 0:1 41499 bcm2711-rpi-4-b.dtb 2382 boot.scr 57 cmdline.txt 1785 config.txt overlays/ 488304 u-boot.bin 2272992 start4.elf.orig 2277376 start4.elf 5405 fixup4.dat.orig 5407 fiup4.dat
9 file(s), 1 dir(s)
HassOS> usb tree USB device tree: 1 Hub (5 Gb/s, 0mA) | U-Boot XHCI Host Controller | |+-2 Mass Storage (5 Gb/s, 224mA) | JMicron USB 3.1 Storage Device DD56419884B3E | +-3 Hub (480 b/s, 100mA) | USB2.0 Hub | +-4 Human Interface (12 Mb/s, 98mA) Logitech USB Receier
The device then boots and works fine.
Do you happen to know if there is some tunable in U-Boot which might help?
Sorry but nothing comes to mind. I'm not aware of similar issues.
Regards, Nicolas