On Fri, 2015-01-23 at 15:35 +0900, Kukjin Kim wrote:
> Marek Szyprowski wrote:
> >
> > Last 22 MiB is RAM is reserved by secure monitor code and cannot be
> > accessed from Linux kernel, so adjust total RAM size to 0x7EA00000
> > (2 GiB - 22 MiB). This fixes random 'imprecise kernel abort' kernel
> > failures.
> >
> > Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> > ---
> > arch/arm/boot/dts/exynos5422-odroidxu3.dts | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/dts/exynos5422-odroidxu3.dts
> > index f6fc9442f631..50843208860d 100644
> > --- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts
> > +++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts
> > @@ -18,7 +18,7 @@
> > compatible = "hardkernel,odroid-xu3", "samsung,exynos5800", "samsung,exynos5";
> >
> > memory {
> > - reg = <0x40000000 0x80000000>;
> > + reg = <0x40000000 0x7EA00000>;
> > };
> >
> > chosen {
> > --
Just checked hardkernels bootloader which defines:
#define CONFIG_TRUSTZONE_RESERVED_DRAM 0x1600000
So looks good,
Reviewed-By: Sjoerd Simons <sjoerd.simons@xxxxxxxxxxxxxxx>
> Hi,
>
> Maybe is it related to the SoC not only for odriodxu3 board. If so, following
> would be better?
>
> ---8<------------8<---
> diff --git a/arch/arm/boot/dts/exynos5800.dtsi b/arch/arm/boot/dts/exynos5800.dtsi
> index c0bb356..54840e3 100644
> --- a/arch/arm/boot/dts/exynos5800.dtsi
> +++ b/arch/arm/boot/dts/exynos5800.dtsi
> @@ -13,6 +13,8 @@
> * published by the Free Software Foundation.
> */
>
> +/memreserve/ 0x80000000 0x1600000;
> +
> #include "exynos5420.dtsi"
>
> / {
> ---8<------------8<---
>
> - Kukjin
>
> --
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