chaegle / meta-nvme

Enable NVMe support of PCIe capable Digi SoMs

OpenEmbedded/Yocto Digi Embedded NVME Layer

This layer enables support for NVME M.2 Solid State Drive (SSD)

SUPPORTED PLATFORMS

This layers supports all Digi ConnectCore solutions that provide a PCIe bus.

• ConnectCore 6
• ConnectCore 6N (see limitations section, below)
• ConnectCore 6Plus
• ConnectCore 8M Mini DVK
• Connectcore 8X (see limitations section, below)

SUPPORTED DEY RELEASES

• DEY-3.0 (Zeus)
• DEY-3.2 (Gatesgarth)

ADDITIONAL HARDWARE

1. Crucial P2 500GB 3D NAND NVMe PCIe M.2 SSD Up to 2400MB/s - CT500P2SSD8
2. M.2 (NGFF) nVME SSD to Mini PCIe Adapter

INSTALLATION

1. Install Digi Embedded Yocto (DEY), per the published instructions.
2. Clone meta-nvme layer to your local workstation. #> cd <DEY_INSTALLDIR>/sources #> git clone https://github.com/chaegle/meta-nvme.git

CREATE AND BUILD A PROJECT

1. Create a project for your supported platform.

2. Add the meta-nvme layer to your project's bblayers.conf file.

3. OPTIONAL - include lspci and/or nvme-cli in produced boot artifacts. Edit and add below line to the project's local.conf file. These tools are NOT required to proper operation/use of the SSD.

   IMAGE_INSTALL_append = " pciutils nvme-cli"

4. Build the image. #> bitbake dey-image-qt

5. Deploy artifacts.

6. Boot and confirm existence of /dev/nvme0n1. #>ls /dev/nvme0n1 /dev/nvme0n1

7. As necessary, create and format partition(s) on the NVMe device.

LIMITATIONS

1. The wirelessly enabled ConnectCore 8X is NOT supported, as the on-SOM Wi-Fi/BT radio is connected to the PCIe bus.
2. At the time of the creation of this layer the author did not have access to a Connectcore 6N to test with. This platform is, however, part of the Connectcore 6Plus family, on which testing was done.