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author | Emmanuel Vadot <manu@FreeBSD.org> | 2017-06-20 02:28:15 +0000 |
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committer | Emmanuel Vadot <manu@FreeBSD.org> | 2017-06-20 02:28:15 +0000 |
commit | 8fdc67f730291b64de002bf95d19ae75e058b8ce (patch) | |
tree | 7168a4d1758594b7d9d103004964d3ab4a44d2a3 /Bindings/gpu/arm,mali-utgard.txt | |
parent | ff018dbf5bb142aa83bd955e5b6c55d66e9e9c1e (diff) | |
download | src-test2-8fdc67f730291b64de002bf95d19ae75e058b8ce.tar.gz src-test2-8fdc67f730291b64de002bf95d19ae75e058b8ce.zip |
Notes
Diffstat (limited to 'Bindings/gpu/arm,mali-utgard.txt')
-rw-r--r-- | Bindings/gpu/arm,mali-utgard.txt | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/Bindings/gpu/arm,mali-utgard.txt b/Bindings/gpu/arm,mali-utgard.txt new file mode 100644 index 000000000000..476f5ea6c627 --- /dev/null +++ b/Bindings/gpu/arm,mali-utgard.txt @@ -0,0 +1,81 @@ +ARM Mali Utgard GPU +=================== + +Required properties: + - compatible + * Must be one of the following: + + "arm,mali-300" + + "arm,mali-400" + + "arm,mali-450" + * And, optionally, one of the vendor specific compatible: + + allwinner,sun4i-a10-mali + + allwinner,sun7i-a20-mali + + amlogic,meson-gxbb-mali + + amlogic,meson-gxl-mali + + stericsson,db8500-mali + + - reg: Physical base address and length of the GPU registers + + - interrupts: an entry for each entry in interrupt-names. + See ../interrupt-controller/interrupts.txt for details. + + - interrupt-names: + * ppX: Pixel Processor X interrupt (X from 0 to 7) + * ppmmuX: Pixel Processor X MMU interrupt (X from 0 to 7) + * pp: Pixel Processor broadcast interrupt (mali-450 only) + * gp: Geometry Processor interrupt + * gpmmu: Geometry Processor MMU interrupt + + - clocks: an entry for each entry in clock-names + - clock-names: + * bus: bus clock for the GPU + * core: clock driving the GPU itself + +Optional properties: + - interrupt-names and interrupts: + * pmu: Power Management Unit interrupt, if implemented in hardware + +Vendor-specific bindings +------------------------ + +The Mali GPU is integrated very differently from one SoC to +another. In order to accomodate those differences, you have the option +to specify one more vendor-specific compatible, among: + + - allwinner,sun4i-a10-mali + Required properties: + * resets: phandle to the reset line for the GPU + + - allwinner,sun7i-a20-mali + Required properties: + * resets: phandle to the reset line for the GPU + + - stericsson,db8500-mali + Required properties: + * interrupt-names and interrupts: + + combined: combined interrupt of all of the above lines + +Example: + +mali: gpu@1c40000 { + compatible = "allwinner,sun7i-a20-mali", "arm,mali-400"; + reg = <0x01c40000 0x10000>; + interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "gp", + "gpmmu", + "pp0", + "ppmmu0", + "pp1", + "ppmmu1", + "pmu"; + clocks = <&ccu CLK_BUS_GPU>, <&ccu CLK_GPU>; + clock-names = "bus", "core"; + resets = <&ccu RST_BUS_GPU>; +}; + |