doc: develop: Convert README.nvme to reST

This converts the existing README.nvme to reST, and puts it under
the develop/driver-model/ directory.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

doc/develop/driver-model/index.rst

@@ -19,6 +19,7 @@ subsystems
    i2c-howto
    livetree
    migration
+   nvme
    of-plat
    pci-info
    pmic-framework

doc/README.nvme → doc/develop/driver-model/nvme.rst

-# SPDX-License-Identifier: GPL-2.0+
-#
-# Copyright (C) 2017 NXP Semiconductors
-# Copyright (C) 2017 Bin Meng <bmeng.cn@gmail.com>
+.. SPDX-License-Identifier: GPL-2.0+
+.. Copyright (C) 2017 NXP Semiconductors
+.. Copyright (C) 2017 Bin Meng <bmeng.cn@gmail.com>
 
-What is NVMe
+NVMe Support
 ============
 
+What is NVMe
+------------
+
 NVM Express (NVMe) is a register level interface that allows host software to
 communicate with a non-volatile memory subsystem. This interface is optimized
 for enterprise and client solid state drives, typically attached to the PCI
@@ -48,6 +50,8 @@ identified.
 
 To list all of the NVMe hard disks, try:
 
+.. code-block:: none
+
   => nvme info
   Device 0: Vendor: 0x8086 Rev: 8DV10131 Prod: CVFT535600LS400BGN
 	    Type: Hard Disk
@@ -55,10 +59,14 @@ To list all of the NVMe hard disks, try:
 
 and print out detailed information for controller and namespaces via:
 
+.. code-block:: none
+
   => nvme detail
 
 Raw block read/write to can be done via the 'nvme read/write' commands:
 
+.. code-block:: none
+
   => nvme read a0000000 0 11000
 
   => tftp 80000000 /tftpboot/kernel.itb
@@ -66,6 +74,8 @@ Raw block read/write to can be done via the 'nvme read/write' commands:
 
 Of course, file system command can be used on the NVMe hard disk as well:
 
+.. code-block:: none
+
   => fatls nvme 0:1
 	32376967   kernel.itb
 	22929408   100m
@@ -81,4 +91,7 @@ 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
+
+.. code-block:: bash
+
+  $ ./qemu-system-i386 -drive file=nvme.img,if=none,id=drv0 -device nvme,drive=drv0,serial=QEMUNVME0001 -bios u-boot.rom