doc: describe QEMU emulation of block devices
* Add a new page about the emulation of block devices
* Add semihosting to the emulation index page
* Set toc maxdepth to 1 to improve readability
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/doc/board/emulation/blkdev.rst b/doc/board/emulation/blkdev.rst
new file mode 100644
index 0000000..dc83a00
--- /dev/null
+++ b/doc/board/emulation/blkdev.rst
@@ -0,0 +1,38 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Emulation of block devices
+--------------------------
+
+QEMU can emulate common block devices by adding the following parameters to
+the qemu-system-<arch> command line:
+
+* MMC
+
+ .. code-block:: bash
+
+ -device sdhci-pci,sd-spec-version=3 \
+ -device sd-card,drive=MMC1 \
+ -drive if=none,file=disk.img,format=raw,id=MMC1
+
+* NVMe
+
+ .. code-block:: bash
+
+ -drive if=none,file=disk.img,format=raw,id=NVME1 \
+ -device nvme,drive=NVME1,serial=nvme-1
+
+* SATA
+
+ .. code-block:: bash
+
+ -device ahci,id=ahci0 \
+ -drive if=none,file=disk.img,format=raw,id=SATA1 \
+ -device ide-hd,bus=ahci0.0,drive=SATA1
+
+* USB
+
+ .. code-block:: bash
+
+ -device qemu-xhci \
+ -drive if=none,file=disk.img,format=raw,id=USB1 \
+ -device usb-storage,drive=USB1
diff --git a/doc/board/emulation/index.rst b/doc/board/emulation/index.rst
index b5b6c3f..932c65a 100644
--- a/doc/board/emulation/index.rst
+++ b/doc/board/emulation/index.rst
@@ -4,8 +4,10 @@
=========
.. toctree::
- :maxdepth: 2
+ :maxdepth: 1
+ blkdev
+ ../../usage/semihosting
qemu-arm
qemu-mips
qemu-ppce500