| Message ID | 20210320181610.680870-14-j.neuschaefer@gmx.net |
|---|---|
| State | New |
| Headers | show |
| Series | Initial support for Nuvoton WPCM450 BMC SoC | expand |
On Sat, Mar 20, 2021 at 07:16:09PM +0100, Jonathan Neuschäfer wrote: > The Supermicro X9SCi-LN4F is a server mainboard featuring the WPCM450 > BMC. This patch adds a minimal devicetree for Linux running on the BMC. > > Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> > --- [...] > +&serial1 { > + /* "Serial over LAN" port. Connected to ttyS2 of the host system. */ > + status = "okay"; > +}; One thing to note here: The SOL functionality doesn't work with this patchset alone, because it requires a special register setting in the SoC's System Global Control Register block (SPSWC.SPMOD = 2). So it might make sense to drop the serial1 enablement for now. Jonathan Neuschäfer
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 8e5d4ab4e75e6..cab5b3c906f83 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -1305,6 +1305,8 @@ dtb-$(CONFIG_ARCH_VT8500) += \ wm8650-mid.dtb \ wm8750-apc8750.dtb \ wm8850-w70v2.dtb +dtb-$(CONFIG_ARCH_WPCM450) += \ + nuvoton-wpcm450-supermicro-x9sci-ln4f.dtb dtb-$(CONFIG_ARCH_ZYNQ) += \ zynq-cc108.dtb \ zynq-ebaz4205.dtb \ diff --git a/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts new file mode 100644 index 0000000000000..83f27fbf4e939 --- /dev/null +++ b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +// Copyright 2021 Jonathan Neuschäfer + +/dts-v1/; + +/* The last 16 MiB are dedicated to the GPU */ +/memreserve/ 0x07000000 0x01000000; + +#include "nuvoton-wpcm450.dtsi" + +/ { + model = "Supermicro X9SCi-LN4F BMC"; + compatible = "supermicro,x9sci-ln4f-bmc", "nuvoton,wpcm450"; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + memory@0 { + device_type = "memory"; + reg = <0 0x08000000>; /* 128 MiB */ + }; +}; + +&serial0 { + /* + * Debug serial port. TX is exposed on the right pad of unpopulated + * resistor R1247, RX on the right pad of R1162. + */ + status = "okay"; +}; + +&serial1 { + /* "Serial over LAN" port. Connected to ttyS2 of the host system. */ + status = "okay"; +}; + +&watchdog0 { + status = "okay"; +};
The Supermicro X9SCi-LN4F is a server mainboard featuring the WPCM450 BMC. This patch adds a minimal devicetree for Linux running on the BMC. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> --- arch/arm/boot/dts/Makefile | 2 + .../nuvoton-wpcm450-supermicro-x9sci-ln4f.dts | 40 +++++++++++++++++++ 2 files changed, 42 insertions(+) create mode 100644 arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts -- 2.30.2