Hi all,
I'm using U-boot 2022.07 from Yocto Langdale distribution, with the following NVMe related kconfigs manually enabled through menuconfig:
CONFIG_NVME CONFIG_NVME_PCI CONFIG_CMD_NVME
and logging turned into max
The SSD is Kioxia SSD, and it works with Pi 4 bootloader as I can boot Raspberry Pi OS from the NVMe drive.
U boot is installed in the fat32 partition in the NVMe SSD for this Yocto poky build.
When I boot to U boot prompt, I can see that the SSD is detected by pci U-Boot> pci long 0 - 0 'pcie@7d500000' - found
Found PCI device 00.00.00: vendor ID = 0x14e4 device ID = 0x2711 command register ID = 0x0006 status register = 0x0010 revision ID = 0x20 class code = 0x06 (Bridge device) sub class code = 0x04 programming interface = 0x00 cache line = 0x08 latency time = 0x00 header type = 0x01 BIST = 0x00 base address 0 = 0x00000000 base address 1 = 0x00000000 primary bus number = 0x00 secondary bus number = 0x01 subordinate bus number = 0x01 secondary latency timer = 0x00 IO base = 0x00 IO limit = 0x00 secondary status = 0x0000 memory base = 0xc000 memory limit = 0xc000 prefetch memory base = 0xfff1 prefetch memory limit = 0x0001 prefetch memory base upper = 0x00000000 prefetch memory limit upper = 0x00000000 IO base upper 16 bits = 0x0000 IO limit upper 16 bits = 0x0000 expansion ROM base address = 0x00000000 interrupt line = 0x00 interrupt pin = 0x01 bridge control = 0x0000 1 - 0 'pcie@7d500000' - 1 'pci_0:0.0' - found
Found PCI device 01.00.00: vendor ID = 0x1e0f device ID = 0x0001 command register ID = 0x0006 status register = 0x0010 revision ID = 0x00 class code = 0x01 (Mass storage controller) sub class code = 0x08 programming interface = 0x02 cache line = 0x08 latency time = 0x00 header type = 0x00 BIST = 0x00 base address 0 = 0xc0000004 base address 1 = 0x00000000 base address 2 = 0x00000000 base address 3 = 0x00000000 base address 4 = 0x00000000 base address 5 = 0x00000000 cardBus CIS pointer = 0x00000000 sub system vendor ID = 0x1e0f sub system ID = 0x0001 expansion ROM base address = 0x00000000 interrupt line = 0x00 interrupt pin = 0x01 min Grant = 0x00 max Latency = 0x00 2 - 0 'pcie@7d500000' - 1 'pci_0:0.0' - not found
but it doesn't show up in nvme scan or nvme info U-Boot> nvme info U-Boot> nvme scan
I know that U boot can boot from NVMe, as I can run Home Assistant OS that's based on U boot on NVMe drive. I just don't know if I missed a kconfig somewhere, or this U boot version haven't implement it
Can anyone help me with this?
Thanks Ignatius