From: Alex Bennée <alex.ben...@linaro.org> We should at least document what this machine is about.
Reviewed-by: Graeme Gregory <gra...@nuviainc.com> Signed-off-by: Alex Bennée <alex.ben...@linaro.org> Message-id: 20201104165254.24822-1-alex.ben...@linaro.org Cc: Leif Lindholm <l...@nuviainc.com> Cc: Shashi Mallela <shashi.mall...@linaro.org> Signed-off-by: Alex Bennée <alex.ben...@linaro.org> [PMM: fixed filename mismatch] Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> --- docs/system/arm/sbsa.rst | 32 ++++++++++++++++++++++++++++++++ docs/system/target-arm.rst | 1 + 2 files changed, 33 insertions(+) create mode 100644 docs/system/arm/sbsa.rst diff --git a/docs/system/arm/sbsa.rst b/docs/system/arm/sbsa.rst new file mode 100644 index 00000000000..b8ecfdb62fd --- /dev/null +++ b/docs/system/arm/sbsa.rst @@ -0,0 +1,32 @@ +Arm Server Base System Architecture Reference board (``sbsa-ref``) +================================================================== + +While the `virt` board is a generic board platform that doesn't match +any real hardware the `sbsa-ref` board intends to look like real +hardware. The `Server Base System Architecture +<https://developer.arm.com/documentation/den0029/latest>` defines a +minimum base line of hardware support and importantly how the firmware +reports that to any operating system. It is a static system that +reports a very minimal DT to the firmware for non-discoverable +information about components affected by the qemu command line (i.e. +cpus and memory). As a result it must have a firmware specifically +built to expect a certain hardware layout (as you would in a real +machine). + +It is intended to be a machine for developing firmware and testing +standards compliance with operating systems. + +Supported devices +""""""""""""""""" + +The sbsa-ref board supports: + + - A configurable number of AArch64 CPUs + - GIC version 3 + - System bus AHCI controller + - System bus EHCI controller + - CDROM and hard disc on AHCI bus + - E1000E ethernet card on PCIe bus + - VGA display adaptor on PCIe bus + - A generic SBSA watchdog device + diff --git a/docs/system/target-arm.rst b/docs/system/target-arm.rst index fdcf25c2375..a0d5c57799c 100644 --- a/docs/system/target-arm.rst +++ b/docs/system/target-arm.rst @@ -79,6 +79,7 @@ undocumented; you can get a complete list by running arm/mps2 arm/musca arm/realview + arm/sbsa arm/versatile arm/vexpress arm/aspeed -- 2.20.1
