Hi Lee, On Tue, 12 Jan 2016, Lee Jones wrote:
> Doing so saves quite a bit of code in the driver. > > For more information on the 'reserved-memory' bindings see: > > Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt > > Suggested-by: Suman Anna <[email protected]> > Signed-off-by: Lee Jones <[email protected]> > --- > arch/arm/boot/dts/stih407-family.dtsi | 46 > +++++++++++++++++++++++++++++------ > 1 file changed, 38 insertions(+), 8 deletions(-) > > diff --git a/arch/arm/boot/dts/stih407-family.dtsi > b/arch/arm/boot/dts/stih407-family.dtsi > index 15c20b6..27b8efc 100644 > --- a/arch/arm/boot/dts/stih407-family.dtsi > +++ b/arch/arm/boot/dts/stih407-family.dtsi > @@ -15,6 +15,36 @@ > #address-cells = <1>; > #size-cells = <1>; > > + reserved-memory { > + #address-cells = <1>; > + #size-cells = <1>; > + ranges; > + > + gp0_reserved: rproc@40000000 { > + compatible = "shared-dma-pool"; > + reg = <0x40000000 0x01000000>; > + no-map; > + }; > + > + gp1_reserved: rproc@41000000 { > + compatible = "shared-dma-pool"; > + reg = <0x41000000 0x01000000>; > + no-map; > + }; > + > + audio_reserved: rproc@42000000 { > + compatible = "shared-dma-pool"; > + reg = <0x42000000 0x01000000>; > + no-map; > + }; > + > + dmu_reserved: rproc@43000000 { > + compatible = "shared-dma-pool"; > + reg = <0x43000000 0x01000000>; > + no-map; > + }; I don't believe these reserved memory ranges are correct for audio_reserved and dmu_reserved. For example my vid_firmware-stih407.elf is linked at 0x41c00000 base address and my audio_firmware-bd-stih407.elf is linked at 0x40c00000. So with all the st231 rproc nodes enabled I guess it would still work. But currently I think st231_gp0 is reserving the memory region for st231_audio, and st231-gp1 is reserving the memory region for st231_dmu. regards, Peter.
