Le Tue, 3 Aug 2021 08:58:17 +0000, <eugen.hris...@microchip.com> a écrit :
> On 8/2/21 3:39 PM, Clément Léger wrote: > > sama5d2 support from DRAM will be modified to use device tree > > instead of hardcoded addresses. In order to prepare that, add the > > memory node to sama5d2.dtsi file since the boards supported by > > U-Boot with sama5d2 all contains 512Mb of DDR. > > > > Signed-off-by: Clément Léger <clement.le...@bootlin.com> > > --- > > arch/arm/dts/sama5d2.dtsi | 4 ++++ > > 1 file changed, 4 insertions(+) > > > > diff --git a/arch/arm/dts/sama5d2.dtsi b/arch/arm/dts/sama5d2.dtsi > > index 6fb2cb25f9..299aefc496 100644 > > --- a/arch/arm/dts/sama5d2.dtsi > > +++ b/arch/arm/dts/sama5d2.dtsi > > @@ -4,6 +4,10 @@ > > model = "Atmel SAMA5D2 family SoC"; > > compatible = "atmel,sama5d2"; > > > > + memory { > > + reg = <0x20000000 0x20000000>; > > + }; > > Hi, > > Memory is external to the SoC. You have to move this node to the > board specific DTS. Ok, I'll move this to sama5d2_xplained only since this series has been made and tested on sama5d2_xplained/sama5d27_som1_ek. Clément > > Even if all current boards have 512 MB of DRAM , this does not belong > here. > > And by the way this is not true, since this SoC can work in a SiP > with only 256 or 128 MB of DRAM for example and this is true for > certain boards ( wlsom1_ek comes to my mind now). > > Eugen > > > + > > aliases { > > spi0 = &spi0; > > spi1 = &qspi0; > > -- > > 2.32.0 > > > -- Clément Léger, Embedded Linux and Kernel engineer at Bootlin https://bootlin.com