Config options
--------------
CONFIG_NVME Enable NVMe device support
+CONFIG_CMD_NVME Enable basic NVMe commands
+
+Usage in U-Boot
+---------------
+To use an NVMe hard disk from U-Boot shell, a 'nvme scan' command needs to
+be executed for all NVMe hard disks attached to the NVMe controller to be
+identified.
+
+To list all of the NVMe hard disks, try:
+
+ => nvme info
+ Device 0: Vendor: 0x8086 Rev: 8DV10131 Prod: CVFT535600LS400BGN
+ Type: Hard Disk
+ Capacity: 381554.0 MB = 372.6 GB (781422768 x 512)
+
+and print out detailed information for controller and namespaces via:
+
+ => nvme detail
+
+Raw block read/write to can be done via the 'nvme read/write' commands:
+
+ => nvme read a0000000 0 11000
+
+ => tftp 80000000 /tftpboot/kernel.itb
+ => nvme write 80000000 0 11000
+
+Of course, file system command can be used on the NVMe hard disk as well:
+
+ => fatls nvme 0:1
+ 32376967 kernel.itb
+ 22929408 100m
+
+ 2 file(s), 0 dir(s)
+
+ => fatload nvme 0:1 a0000000 /kernel.itb
+ => bootm a0000000
+
+Testing NVMe with QEMU x86
+--------------------------
+QEMU supports NVMe emulation and we can test NVMe driver with QEMU x86 running
+U-Boot. Please see README.x86 for how to build u-boot.rom image for QEMU x86.
+
+Example command line to call QEMU x86 below with emulated NVMe device:
+$ ./qemu-system-i386 -drive file=nvme.img,if=none,id=drv0 -device nvme,drive=drv0,serial=QEMUNVME0001 -bios u-boot.rom