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/freebsd/sys/contrib/device-tree/Bindings/fsi/
H A Dfsi.txt1 FSI bus & engine generic device tree bindings
4 The FSI bus is probe-able, so the OS is able to enumerate FSI slaves, and
6 nodes to probed engines. This allows for fsi engines to expose non-probeable
7 busses, which are then exposed by the device tree. For example, an FSI engine
8 that is an I2C master - the I2C bus can be described by the device tree under
9 the engine's device tree node.
11 FSI masters may require their own DT nodes (to describe the master HW itself);
13 the fsi-master-* binding specifications.
16 represent the FSI slaves and their slave engines. As a basic outline:
18 fsi-master {
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H A Dibm,p9-sbefifo.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/fsi/ibm,p9-sbefifo.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: IBM FSI-attached SBEFIFO engine
10 - Eddie James <eajames@linux.ibm.com>
13 The SBEFIFO is an FSI CFAM engine that provides an interface to the
14 POWER processor Self Boot Engine (SBE). This node will always be a child
15 of an FSI CFAM node.
20 - ibm,p9-sbefifo
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H A Dibm,fsi2spi.yaml1 # SPDX-License-Identifier: (GPL-2.0-or-later)
3 ---
4 $id: http://devicetree.org/schemas/fsi/ibm,fsi2spi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: IBM FSI-attached SPI controllers
10 - Eddie James <eajames@linux.ibm.com>
13 This binding describes an FSI CFAM engine called the FSI2SPI. Therefore this
14 node will always be a child of an FSI CFAM node. This FSI2SPI engine provides
20 - ibm,fsi2spi
24 - description: FSI slave address
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H A Dibm,p9-scom.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/fsi/ibm,p9-scom.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: IBM FSI-attached SCOM engine
10 - Eddie James <eajames@linux.ibm.com>
13 The SCOM engine is an interface to the POWER processor PIB (Pervasive
14 Interconnect Bus). This node will always be a child of an FSI CFAM node.
19 - ibm,p9-scom
20 - ibm,i2cr-scom
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/freebsd/sys/contrib/device-tree/Bindings/i2c/
H A Dibm,i2c-fsi.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/i2c/ibm,i2c-fsi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: IBM FSI-attached I2C controller
10 - Eddie James <eajames@linux.ibm.com>
13 This I2C controller is an FSI CFAM engine, providing access to a number of
14 I2C busses. Therefore this node will always be a child of an FSI CFAM node.
19 - ibm,i2c-fsi
23 - description: FSI slave address
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