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| author | Zhikang Zhang <zhikang.zhang@nxp.com> | 2017-08-03 02:30:59 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-08-13 15:17:32 -0400 |
| commit | 0adc38be3d0e55fea72b8bbae831376d1649266e (patch) | |
| tree | 911745a06c54291d0fa39393b6ab3880f0ef5242 /doc/README.nvme | |
| parent | f6aa61d599678b74b3c4a6bd5604a0f9ac2af9b2 (diff) | |
| download | u-boot-0adc38be3d0e55fea72b8bbae831376d1649266e.tar.gz | |
nvme: Add nvme commands
Add nvme commands in U-Boot command line.
1. "nvme scan" - scan NVMe blk devices
2. "nvme list" - show all available NVMe blk devices
3. "nvme info" - show current or a specific NVMe blk device
4. "nvme device" - show or set current device
5. "nvme part" - print partition table
6. "nvme read" - read data from NVMe blk device
7. "nvme write" - write data to NVMe blk device
Signed-off-by: Zhikang Zhang <zhikang.zhang@nxp.com>
Signed-off-by: Wenbin Song <wenbin.song@nxp.com>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'doc/README.nvme')
| -rw-r--r-- | doc/README.nvme | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/doc/README.nvme b/doc/README.nvme index d2b917d61b..28ecf54000 100644 --- a/doc/README.nvme +++ b/doc/README.nvme @@ -40,3 +40,39 @@ It only support basic block read/write functions in the NVMe driver. 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 list + 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 info + +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 |