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-rw-r--r--MAINTAINERS1
-rw-r--r--docs/system/target-rx.rst36
-rw-r--r--docs/system/targets.rst1
3 files changed, 38 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index 37c5f10934..a61dddf098 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1261,6 +1261,7 @@ RX Machines
rx-gdbsim
M: Yoshinori Sato <ysato@users.sourceforge.jp>
S: Maintained
+F: docs/system/target-rx.rst
F: hw/rx/rx-gdbsim.c
F: tests/acceptance/machine_rx_gdbsim.py
diff --git a/docs/system/target-rx.rst b/docs/system/target-rx.rst
new file mode 100644
index 0000000000..4a20a89a06
--- /dev/null
+++ b/docs/system/target-rx.rst
@@ -0,0 +1,36 @@
+.. _RX-System-emulator:
+
+RX System emulator
+--------------------
+
+Use the executable ``qemu-system-rx`` to simulate RX target (GDB simulator).
+This target emulated following devices.
+
+- R5F562N8 MCU
+
+ - On-chip memory (ROM 512KB, RAM 96KB)
+ - Interrupt Control Unit (ICUa)
+ - 8Bit Timer x 1CH (TMR0,1)
+ - Compare Match Timer x 2CH (CMT0,1)
+ - Serial Communication Interface x 1CH (SCI0)
+
+- External memory 16MByte
+
+Example of ``qemu-system-rx`` usage for RX is shown below:
+
+Download ``<u-boot_image_file>`` from
+https://osdn.net/users/ysato/pf/qemu/dl/u-boot.bin.gz
+
+Start emulation of rx-virt::
+ qemu-system-rx -M gdbsim-r5f562n8 -bios <u-boot_image_file>
+
+Download ``kernel_image_file`` from
+https://osdn.net/users/ysato/pf/qemu/dl/zImage
+
+Download ``device_tree_blob`` from
+https://osdn.net/users/ysato/pf/qemu/dl/rx-virt.dtb
+
+Start emulation of rx-virt::
+ qemu-system-rx -M gdbsim-r5f562n8 \
+ -kernel <kernel_image_file> -dtb <device_tree_blob> \
+ -append "earlycon"
diff --git a/docs/system/targets.rst b/docs/system/targets.rst
index 0d8f91580a..99435a3eba 100644
--- a/docs/system/targets.rst
+++ b/docs/system/targets.rst
@@ -18,3 +18,4 @@ Contents:
target-m68k
target-xtensa
target-s390x
+ target-rx