From: Linus Walleij Date: Mon, 10 Feb 2020 09:21:31 +0000 (+0100) Subject: dt-bindings: arm: Drop the non-YAML bindings X-Git-Tag: v5.10.7~2897^2~39^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2d483550b6d21de8af60e67e728fa118a537b07d;p=platform%2Fkernel%2Flinux-rpi.git dt-bindings: arm: Drop the non-YAML bindings We created new bindings for the ARM Board using YAML so delete the old human-parseable-only bindings. Cc: Sudeep Holla Reviewed-by: Rob Herring Signed-off-by: Linus Walleij --- diff --git a/Documentation/devicetree/bindings/arm/arm-boards b/Documentation/devicetree/bindings/arm/arm-boards deleted file mode 100644 index 96b1dad..0000000 --- a/Documentation/devicetree/bindings/arm/arm-boards +++ /dev/null @@ -1,237 +0,0 @@ -ARM Integrator/AP (Application Platform) and Integrator/CP (Compact Platform) ------------------------------------------------------------------------------ -ARM's oldest Linux-supported platform with connectors for different core -tiles of ARMv4, ARMv5 and ARMv6 type. - -Required properties (in root node): - compatible = "arm,integrator-ap"; /* Application Platform */ - compatible = "arm,integrator-cp"; /* Compact Platform */ - -FPGA type interrupt controllers, see the versatile-fpga-irq binding doc. - -Required nodes: - -- core-module: the root node to the Integrator platforms must have - a core-module with regs and the compatible string - "arm,core-module-integrator" -- external-bus-interface: the root node to the Integrator platforms - must have an external bus interface with regs and the - compatible-string "arm,external-bus-interface" - - Required properties for the core module: - - regs: the location and size of the core module registers, one - range of 0x200 bytes. - -- syscon: the root node of the Integrator platforms must have a - system controller node pointing to the control registers, - with the compatible string - "arm,integrator-ap-syscon" - "arm,integrator-cp-syscon" - respectively. - - Required properties for the system controller: - - regs: the location and size of the system controller registers, - one range of 0x100 bytes. - - Required properties for the AP system controller: - - interrupts: the AP syscon node must include the logical module - interrupts, stated in order of module instance , - , ... for the CP system controller this - is not required not of any use. - -/dts-v1/; -/include/ "integrator.dtsi" - -/ { - model = "ARM Integrator/AP"; - compatible = "arm,integrator-ap"; - - core-module@10000000 { - compatible = "arm,core-module-integrator"; - reg = <0x10000000 0x200>; - }; - - ebi@12000000 { - compatible = "arm,external-bus-interface"; - reg = <0x12000000 0x100>; - }; - - syscon { - compatible = "arm,integrator-ap-syscon"; - reg = <0x11000000 0x100>; - interrupt-parent = <&pic>; - /* These are the logic module IRQs */ - interrupts = <9>, <10>, <11>, <12>; - }; -}; - - -ARM Versatile Application and Platform Baseboards -------------------------------------------------- -ARM's development hardware platform with connectors for customizable -core tiles. The hardware configuration of the Versatile boards is -highly customizable. - -Required properties (in root node): - compatible = "arm,versatile-ab"; /* Application baseboard */ - compatible = "arm,versatile-pb"; /* Platform baseboard */ - -Interrupt controllers: -- VIC required properties: - compatible = "arm,versatile-vic"; - interrupt-controller; - #interrupt-cells = <1>; - -- SIC required properties: - compatible = "arm,versatile-sic"; - interrupt-controller; - #interrupt-cells = <1>; - -Required nodes: - -- core-module: the root node to the Versatile platforms must have - a core-module with regs and the compatible strings - "arm,core-module-versatile", "syscon" - -Optional nodes: - -- arm,versatile-ib2-syscon : if the Versatile has an IB2 interface - board mounted, this has a separate system controller that is - defined in this node. - Required properties: - compatible = "arm,versatile-ib2-syscon", "syscon" - -ARM RealView Boards -------------------- -The RealView boards cover tailored evaluation boards that are used to explore -the ARM11 and Cortex A-8 and Cortex A-9 processors. - -Required properties (in root node): - /* RealView Emulation Baseboard */ - compatible = "arm,realview-eb"; - /* RealView Platform Baseboard for ARM1176JZF-S */ - compatible = "arm,realview-pb1176"; - /* RealView Platform Baseboard for ARM11 MPCore */ - compatible = "arm,realview-pb11mp"; - /* RealView Platform Baseboard for Cortex A-8 */ - compatible = "arm,realview-pba8"; - /* RealView Platform Baseboard Explore for Cortex A-9 */ - compatible = "arm,realview-pbx"; - -Required nodes: - -- soc: some node of the RealView platforms must be the SoC - node that contain the SoC-specific devices, with the compatible - string set to one of these tuples: - "arm,realview-eb-soc", "simple-bus" - "arm,realview-pb1176-soc", "simple-bus" - "arm,realview-pb11mp-soc", "simple-bus" - "arm,realview-pba8-soc", "simple-bus" - "arm,realview-pbx-soc", "simple-bus" - -- syscon: some subnode of the RealView SoC node must be a - system controller node pointing to the control registers, - with the compatible string set to one of these: - "arm,realview-eb11mp-revb-syscon", "arm,realview-eb-syscon", "syscon" - "arm,realview-eb11mp-revc-syscon", "arm,realview-eb-syscon", "syscon" - "arm,realview-eb-syscon", "syscon" - "arm,realview-pb1176-syscon", "syscon" - "arm,realview-pb11mp-syscon", "syscon" - "arm,realview-pba8-syscon", "syscon" - "arm,realview-pbx-syscon", "syscon" - - Required properties for the system controller: - - regs: the location and size of the system controller registers, - one range of 0x1000 bytes. - -Example: - -/dts-v1/; -#include - -/ { - model = "ARM RealView PB1176 with device tree"; - compatible = "arm,realview-pb1176"; - #address-cells = <1>; - #size-cells = <1>; - - soc { - #address-cells = <1>; - #size-cells = <1>; - compatible = "arm,realview-pb1176-soc", "simple-bus"; - ranges; - - syscon: syscon@10000000 { - compatible = "arm,realview-syscon", "syscon"; - reg = <0x10000000 0x1000>; - }; - - }; -}; - -ARM Versatile Express Boards ------------------------------ -For details on the device tree bindings for ARM Versatile Express boards -please consult the vexpress.txt file in the same directory as this file. - -ARM Juno Boards ----------------- -The Juno boards are targeting development for AArch64 systems. The first -iteration, Juno r0, is a vehicle for evaluating big.LITTLE on AArch64, -with the second iteration, Juno r1, mainly aimed at development of PCIe -based systems. Juno r1 also has support for AXI masters placed on the TLX -connectors to join the coherency domain. - -Juno boards are described in a similar way to ARM Versatile Express boards, -with the motherboard part of the hardware being described in a separate file -to highlight the fact that is part of the support infrastructure for the SoC. -Juno device tree bindings also share the Versatile Express bindings as -described under the RS1 memory mapping. - -Required properties (in root node): - compatible = "arm,juno"; /* For Juno r0 board */ - compatible = "arm,juno-r1"; /* For Juno r1 board */ - compatible = "arm,juno-r2"; /* For Juno r2 board */ - -Required nodes: -The description for the board must include: - - a "psci" node describing the boot method used for the secondary CPUs. - A detailed description of the bindings used for "psci" nodes is present - in the psci.yaml file. - - a "cpus" node describing the available cores and their associated - "enable-method"s. For more details see cpus.yaml file. - -Example: - -/dts-v1/; -/ { - model = "ARM Juno development board (r0)"; - compatible = "arm,juno", "arm,vexpress"; - interrupt-parent = <&gic>; - #address-cells = <2>; - #size-cells = <2>; - - cpus { - #address-cells = <2>; - #size-cells = <0>; - - A57_0: cpu@0 { - compatible = "arm,cortex-a57"; - reg = <0x0 0x0>; - device_type = "cpu"; - enable-method = "psci"; - }; - - ..... - - A53_0: cpu@100 { - compatible = "arm,cortex-a53"; - reg = <0x0 0x100>; - device_type = "cpu"; - enable-method = "psci"; - }; - - ..... - }; - -}; diff --git a/Documentation/devicetree/bindings/arm/vexpress.txt b/Documentation/devicetree/bindings/arm/vexpress.txt deleted file mode 100644 index 39844cd..0000000 --- a/Documentation/devicetree/bindings/arm/vexpress.txt +++ /dev/null @@ -1,229 +0,0 @@ -ARM Versatile Express boards family ------------------------------------ - -ARM's Versatile Express platform consists of a motherboard and one -or more daughterboards (tiles). The motherboard provides a set of -peripherals. Processor and RAM "live" on the tiles. - -The motherboard and each core tile should be described by a separate -Device Tree source file, with the tile's description including -the motherboard file using a /include/ directive. As the motherboard -can be initialized in one of two different configurations ("memory -maps"), care must be taken to include the correct one. - - -Root node ---------- - -Required properties in the root node: -- compatible value: - compatible = "arm,vexpress,", "arm,vexpress"; - where is the full tile model name (as used in the tile's - Technical Reference Manual), eg.: - - for Coretile Express A5x2 (V2P-CA5s): - compatible = "arm,vexpress,v2p-ca5s", "arm,vexpress"; - - for Coretile Express A9x4 (V2P-CA9): - compatible = "arm,vexpress,v2p-ca9", "arm,vexpress"; - If a tile comes in several variants or can be used in more then one - configuration, the compatible value should be: - compatible = "arm,vexpress,,", \ - "arm,vexpress,", "arm,vexpress"; - eg: - - Coretile Express A15x2 (V2P-CA15) with Tech Chip 1: - compatible = "arm,vexpress,v2p-ca15,tc1", \ - "arm,vexpress,v2p-ca15", "arm,vexpress"; - - LogicTile Express 13MG (V2F-2XV6) running Cortex-A7 (3 cores) SMM: - compatible = "arm,vexpress,v2f-2xv6,ca7x3", \ - "arm,vexpress,v2f-2xv6", "arm,vexpress"; - -Optional properties in the root node: -- tile model name (use name from the tile's Technical Reference - Manual, eg. "V2P-CA5s") - model = ""; -- tile's HBI number (unique ARM's board model ID, visible on the - PCB's silkscreen) in hexadecimal transcription: - arm,hbi = <0xhbi> - eg: - - for Coretile Express A5x2 (V2P-CA5s) HBI-0191: - arm,hbi = <0x191>; - - Coretile Express A9x4 (V2P-CA9) HBI-0225: - arm,hbi = <0x225>; - - -CPU nodes ---------- - -Top-level standard "cpus" node is required. It must contain a node -with device_type = "cpu" property for every available core, eg.: - - cpus { - #address-cells = <1>; - #size-cells = <0>; - - cpu@0 { - device_type = "cpu"; - compatible = "arm,cortex-a5"; - reg = <0>; - }; - }; - - -Configuration infrastructure ----------------------------- - -The platform has an elaborated configuration system, consisting of -microcontrollers residing on the mother- and daughterboards known -as Motherboard/Daughterboard Configuration Controller (MCC and DCC). -The controllers are responsible for the platform initialization -(reset generation, flash programming, FPGA bitfiles loading etc.) -but also control clock generators, voltage regulators, gather -environmental data like temperature, power consumption etc. Even -the video output switch (FPGA) is controlled that way. - -The controllers are not mapped into normal memory address space -and must be accessed through bridges - other devices capable -of generating transactions on the configuration bus. - -The nodes describing configuration controllers must define -the following properties: -- compatible value: - compatible = "arm,vexpress,config-bus"; -- bridge phandle: - arm,vexpress,config-bridge = ; -and children describing available functions. - - -Platform topology ------------------ - -As Versatile Express can be configured in number of physically -different setups, the device tree should describe platform topology. -Root node and main motherboard node must define the following -property, describing physical location of the children nodes: -- site number: - arm,vexpress,site = ; - where 0 means motherboard, 1 or 2 are daugtherboard sites, - 0xf means "master" site (site containing main CPU tile) -- when daughterboards are stacked on one site, their position - in the stack be be described with: - arm,vexpress,position = ; -- when describing tiles consisting more than one DCC, its number - can be described with: - arm,vexpress,dcc = ; - -Any of the numbers above defaults to zero if not defined in -the node or any of its parent. - - -Motherboard ------------ - -The motherboard description file provides a single "motherboard" node -using 2 address cells corresponding to the Static Memory Bus used -between the motherboard and the tile. The first cell defines the Chip -Select (CS) line number, the second cell address offset within the CS. -All interrupt lines between the motherboard and the tile are active -high and are described using single cell. - -Optional properties of the "motherboard" node: -- motherboard's memory map variant: - arm,v2m-memory-map = ""; - where name is one of: - - "rs1" - for RS1 map (i.a. peripherals on CS3); this map is also - referred to as "ARM Cortex-A Series memory map": - arm,v2m-memory-map = "rs1"; - When this property is missing, the motherboard is using the original - memory map (also known as the "Legacy memory map", primarily used - with the original CoreTile Express A9x4) with peripherals on CS7. - -Motherboard .dtsi files provide a set of labelled peripherals that -can be used to obtain required phandle in the tile's "aliases" node: -- UARTs, note that the numbers correspond to the physical connectors - on the motherboard's back panel: - v2m_serial0, v2m_serial1, v2m_serial2 and v2m_serial3 -- I2C controllers: - v2m_i2c_dvi and v2m_i2c_pcie -- SP804 timers: - v2m_timer01 and v2m_timer23 - -The tile description should define a "smb" node, describing the -Static Memory Bus between the tile and motherboard. It must define -the following properties: -- "simple-bus" compatible value (to ensure creation of the children) - compatible = "simple-bus"; -- mapping of the SMB CS/offset addresses into main address space: - #address-cells = <2>; - #size-cells = <1>; - ranges = <...>; -- interrupts mapping: - #interrupt-cells = <1>; - interrupt-map-mask = <0 0 63>; - interrupt-map = <...>; - - -Example of a VE tile description (simplified) ---------------------------------------------- - -/dts-v1/; - -/ { - model = "V2P-CA5s"; - arm,hbi = <0x225>; - arm,vexpress,site = <0xf>; - compatible = "arm,vexpress-v2p-ca5s", "arm,vexpress"; - interrupt-parent = <&gic>; - #address-cells = <1>; - #size-cells = <1>; - - chosen { }; - - aliases { - serial0 = &v2m_serial0; - }; - - cpus { - #address-cells = <1>; - #size-cells = <0>; - - cpu@0 { - device_type = "cpu"; - compatible = "arm,cortex-a5"; - reg = <0>; - }; - }; - - gic: interrupt-controller@2c001000 { - compatible = "arm,cortex-a9-gic"; - #interrupt-cells = <3>; - #address-cells = <0>; - interrupt-controller; - reg = <0x2c001000 0x1000>, - <0x2c000100 0x100>; - }; - - dcc { - compatible = "arm,vexpress,config-bus"; - arm,vexpress,config-bridge = <&v2m_sysreg>; - - osc@0 { - compatible = "arm,vexpress-osc"; - }; - }; - - smb { - compatible = "simple-bus"; - - #address-cells = <2>; - #size-cells = <1>; - /* CS0 is visible at 0x08000000 */ - ranges = <0 0 0x08000000 0x04000000>; - - #interrupt-cells = <1>; - interrupt-map-mask = <0 0 63>; - /* Active high IRQ 0 is connected to GIC's SPI0 */ - interrupt-map = <0 0 0 &gic 0 0 4>; - - /include/ "vexpress-v2m-rs1.dtsi" - }; -}; -