Hi Heinrich Schuchardt, > Running a graphics adapter on the MACCHIATObin fails due to an > insufficently sized memory window. I think "insufficient" is enough or I miss something. > > Enlarge the memory window for the PCIe slot to 512 MiB. > > With the patch I am able to use a GT710 graphics adapter with 1 GB onboard > memory. > > These are the mapped memory areas that the graphics adapter is actually > using: > > Region 0: Memory at cc000000 (32-bit, non-prefetchable) [size=16M] > Region 1: Memory at c0000000 (64-bit, prefetchable) [size=128M] > Region 3: Memory at c8000000 (64-bit, prefetchable) [size=32M] > Region 5: I/O ports at 1000 [size=128] > Expansion ROM at ca000000 [disabled] [size=512K] >From my point of view this patch is correct, I don't think it is a problem to map more memory. So I applied on it mvebu/dt64. But I add also Thomas in CC who know better the PCIe support on mvebu/ Thanks, Gregory > > Signed-off-by: Heinrich Schuchardt <xypron.glpk@xxxxxx> > --- > arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi > index 329f8ceeebea..205071b45a32 100644 > --- a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi > +++ b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi > @@ -184,6 +184,8 @@ > num-lanes = <4>; > num-viewport = <8>; > reset-gpios = <&cp0_gpio2 20 GPIO_ACTIVE_LOW>; > + ranges = <0x81000000 0x0 0xf9010000 0x0 0xf9010000 0x0 0x10000 > + 0x82000000 0x0 0xc0000000 0x0 0xc0000000 0x0 0x20000000>; > status = "okay"; > }; > > -- > 2.20.1 > -- Gregory Clement, Bootlin Embedded Linux and Kernel engineering http://bootlin.com
