On Fri, Apr 24, 2020 at 10:34:04PM +0200, H. Nikolaus Schaller wrote: > The Imagination PVR/SGX GPU is part of several SoC from > multiple vendors, e.g. TI OMAP, Ingenic JZ4780, Intel Poulsbo, > Allwinner A83 and others. > > With this binding, we describe how the SGX processor is > interfaced to the SoC (registers and interrupt). > > The interface also consists of clocks, reset, power but > information from data sheets is vague and some SoC integrators > (TI) deciced to use a PRCM wrapper (ti,sysc) which does > all clock, reset and power-management through registers > outside of the sgx register block. > > Therefore all these properties are optional. > > Tested by make dt_binding_check > > Signed-off-by: H. Nikolaus Schaller <hns@xxxxxxxxxxxxx> > --- > .../devicetree/bindings/gpu/img,pvrsgx.yaml | 150 ++++++++++++++++++ > 1 file changed, 150 insertions(+) > create mode 100644 Documentation/devicetree/bindings/gpu/img,pvrsgx.yaml > > diff --git a/Documentation/devicetree/bindings/gpu/img,pvrsgx.yaml b/Documentation/devicetree/bindings/gpu/img,pvrsgx.yaml > new file mode 100644 > index 000000000000..33a9c4c6e784 > --- /dev/null > +++ b/Documentation/devicetree/bindings/gpu/img,pvrsgx.yaml > @@ -0,0 +1,150 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/gpu/img,pvrsgx.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Imagination PVR/SGX GPU > + > +maintainers: > + - H. Nikolaus Schaller <hns@xxxxxxxxxxxxx> > + > +description: |+ > + This binding describes the Imagination SGX5 series of 3D accelerators which > + are found in several different SoC like TI OMAP, Sitara, Ingenic JZ4780, > + Allwinner A83, and Intel Poulsbo and CedarView and more. > + > + For an extensive list see: https://en.wikipedia.org/wiki/PowerVR#Implementations > + > + The SGX node is usually a child node of some DT node belonging to the SoC > + which handles clocks, reset and general address space mapping of the SGX > + register area. If not, an optional clock can be specified here. > + > +properties: > + $nodename: > + pattern: '^gpu@[a-f0-9]+$' > + compatible: > + oneOf: > + - description: SGX530-121 based SoC > + items: > + - enum: > + - ti,omap3-sgx530-121 # BeagleBoard A/B/C, OpenPandora 600MHz and similar Should be indented 2 more here and elsewhere where you have a list under a list. > + - const: img,sgx530-121 > + - const: img,sgx530 > + > + - description: SGX530-125 based SoC > + items: > + - enum: > + - ti,am3352-sgx530-125 # BeagleBone Black > + - ti,am3517-sgx530-125 > + - ti,am4-sgx530-125 > + - ti,omap3-sgx530-125 # BeagleBoard XM, GTA04, OpenPandora 1GHz and similar > + - ti,ti81xx-sgx530-125 > + - const: ti,omap3-sgx530-125 > + - const: img,sgx530-125 > + - const: img,sgx530 > + > + - description: SGX535-116 based SoC > + items: > + - const: intel,poulsbo-gma500-sgx535 # Atom Z5xx > + - const: img,sgx535-116 > + - const: img,sgx535 > + > + - description: SGX540-116 based SoC > + items: > + - const: intel,medfield-gma-sgx540 # Atom Z24xx > + - const: img,sgx540-116 > + - const: img,sgx540 > + > + - description: SGX540-120 based SoC > + items: > + - enum: > + - samsung,s5pv210-sgx540-120 > + - ti,omap4-sgx540-120 # Pandaboard, Pandaboard ES and similar > + - const: img,sgx540-120 > + - const: img,sgx540 > + > + - description: SGX540-130 based SoC > + items: > + - enum: > + - ingenic,jz4780-sgx540-130 # CI20 > + - const: img,sgx540-130 > + - const: img,sgx540 > + > + - description: SGX544-112 based SoC > + items: > + - const: ti,omap4470-sgx544-112 > + - const: img,sgx544-112 > + - const: img,sgx544 > + > + - description: SGX544-115 based SoC > + items: > + - enum: > + - allwinner,sun8i-a31-sgx544-115 > + - allwinner,sun8i-a31s-sgx544-115 > + - allwinner,sun8i-a83t-sgx544-115 # Banana-Pi-M3 (Allwinner A83T) and similar > + - const: img,sgx544-115 > + - const: img,sgx544 > + > + - description: SGX544-116 based SoC > + items: > + - enum: > + - ti,dra7-sgx544-116 # DRA7 > + - ti,omap5-sgx544-116 # OMAP5 UEVM, Pyra Handheld and similar > + - const: img,sgx544-116 > + - const: img,sgx544 > + > + - description: SGX545 based SoC > + items: > + - const: intel,cedarview-gma3600-sgx545 # Atom N2600, D2500 > + - const: img,sgx545-116 > + - const: img,sgx545 > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + interrupt-names: > + maxItems: 1 > + items: > + - const: sgx > + > + clocks: > + maxItems: 4 > + > + clock-names: > + maxItems: 4 > + items: > + - const: core > + - const: sys > + - const: mem > + - const: hyd > + > + sgx-supply: true > + > + power-domains: > + maxItems: 1 > + > + resets: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + - interrupts > + > +additionalProperties: false > + > +examples: > + - |+ > + #include <dt-bindings/interrupt-controller/arm-gic.h> > + > + gpu: gpu@fe00 { > + compatible = "ti,omap5-sgx544-116", "img,sgx544-116", "img,sgx544"; > + reg = <0xfe00 0x200>; > + interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>; > + }; > + > +... > -- > 2.25.1 >
