On Thu, Mar 27, 2014 at 04:56:34PM +0100, Hans de Goede wrote: > Hi, > > On 03/27/2014 10:59 AM, Maxime Ripard wrote: > > On Wed, Mar 26, 2014 at 09:18:00PM +0100, Hans de Goede wrote: > >> Add a new sun6i-a31-m9 dts file for the Mele M9 / Mele A1000G Quad. These > >> HTPCs use the same board in a different case, for more details see: > >> http://linux-sunxi.org/Mele_M9 > >> > >> Signed-off-by: Hans de Goede <hdego...@redhat.com> > >> --- > >> arch/arm/boot/dts/Makefile | 1 + > >> arch/arm/boot/dts/sun6i-a31-m9.dts | 30 ++++++++++++++++++++++++++++++ > >> 2 files changed, 31 insertions(+) > >> create mode 100644 arch/arm/boot/dts/sun6i-a31-m9.dts > >> > >> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile > >> index aaa130e..5c02aac 100644 > >> --- a/arch/arm/boot/dts/Makefile > >> +++ b/arch/arm/boot/dts/Makefile > >> @@ -291,6 +291,7 @@ dtb-$(CONFIG_ARCH_SUNXI) += \ > >> sun5i-a13-olinuxino.dtb \ > >> sun5i-a13-olinuxino-micro.dtb \ > >> sun6i-a31-colombus.dtb \ > >> + sun6i-a31-m9.dtb \ > >> sun7i-a20-cubieboard2.dtb \ > >> sun7i-a20-cubietruck.dtb \ > >> sun7i-a20-olinuxino-micro.dtb > >> diff --git a/arch/arm/boot/dts/sun6i-a31-m9.dts > >> b/arch/arm/boot/dts/sun6i-a31-m9.dts > >> new file mode 100644 > >> index 0000000..c95ee77 > >> --- /dev/null > >> +++ b/arch/arm/boot/dts/sun6i-a31-m9.dts > >> @@ -0,0 +1,30 @@ > >> +/* > >> + * Copyright 2014 Hans de Goede <hdego...@redhat.com> > >> + * > >> + * The code contained herein is licensed under the GNU General Public > >> + * License. You may obtain a copy of the GNU General Public License > >> + * Version 2 or later at the following locations: > >> + * > >> + * http://www.opensource.org/licenses/gpl-license.html > >> + * http://www.gnu.org/copyleft/gpl.html > >> + */ > >> + > >> +/dts-v1/; > >> +/include/ "sun6i-a31.dtsi" > >> + > >> +/ { > >> + model = "Mele M9 / A1000G Quad top set box"; > >> + compatible = "mele,m9", "allwinner,sun6i-a31"; > >> + > >> + chosen { > >> + bootargs = "earlyprintk console=ttyS0,115200"; > >> + }; > > > > How much memory does it have? You could probably add a memory node here. > > It has 8x hynix h5tq2g83efr, so 2 GiB. > > I don't see a memory node in any of the other sunxi dts files either, > isn't that supposed to get dynamically added by u-boot ?
It does, but not on the A31, since we don't have any DT-enabled u-boot (yet). So providing a default for the A31 boards is a good idea for the time being. > We've some boards, ie the cubieboard were there are both 512MB and > 1G versions, and u-boot does some sort of memtest to figure out > which is which (assuming that lower caps use lower caps ram chips, > not half the chips then this won't work). So I don't think that > hardcoding this in the dts is a good idea. Maybe we need to enable ARM_ATAG_DTB_COMPAT for the A31 case then. -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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