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author | Tony Lindgren <tony@atomide.com> | 2017-11-28 08:12:32 -0800 |
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committer | Tony Lindgren <tony@atomide.com> | 2017-11-28 08:12:32 -0800 |
commit | bc686442f8a601bccac1f22506ecdb4b0d62cadd (patch) | |
tree | b224ab4aa2350b233da640f5850f48bc6bfeb2d0 /Documentation/devicetree/bindings/arm/amlogic/smp-sram.txt | |
parent | ARM: dts: Add remote-wakeup-connected for omap OHCI (diff) | |
parent | ARM: dts: am437x-cm-t43: Correct the dmas property of spi0 (diff) | |
download | linux-dev-bc686442f8a601bccac1f22506ecdb4b0d62cadd.tar.xz linux-dev-bc686442f8a601bccac1f22506ecdb4b0d62cadd.zip |
Merge branch 'dts-fixes' into omap-for-v4.15/fixes-dt
Diffstat (limited to 'Documentation/devicetree/bindings/arm/amlogic/smp-sram.txt')
-rw-r--r-- | Documentation/devicetree/bindings/arm/amlogic/smp-sram.txt | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/amlogic/smp-sram.txt b/Documentation/devicetree/bindings/arm/amlogic/smp-sram.txt new file mode 100644 index 000000000000..3473ddaadfac --- /dev/null +++ b/Documentation/devicetree/bindings/arm/amlogic/smp-sram.txt @@ -0,0 +1,32 @@ +Amlogic Meson8 and Meson8b SRAM for smp bringup: +------------------------------------------------ + +Amlogic's SMP-capable SoCs use part of the sram for the bringup of the cores. +Once the core gets powered up it executes the code that is residing at a +specific location. + +Therefore a reserved section sub-node has to be added to the mmio-sram +declaration. + +Required sub-node properties: +- compatible : depending on the SoC this should be one of: + "amlogic,meson8-smp-sram" + "amlogic,meson8b-smp-sram" + +The rest of the properties should follow the generic mmio-sram discription +found in ../../misc/sram.txt + +Example: + + sram: sram@d9000000 { + compatible = "mmio-sram"; + reg = <0xd9000000 0x20000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0xd9000000 0x20000>; + + smp-sram@1ff80 { + compatible = "amlogic,meson8b-smp-sram"; + reg = <0x1ff80 0x8>; + }; + }; |