Re: [PATCH 1/1] ARM64: dts: meson-gxbb-odroidc2: linux,usable-memory
From: Neil Armstrong <hidden>
Date: 2016-12-23 19:48:47
Also in:
linux-amlogic, linux-arm-kernel, lkml
Le 23/12/2016 13:52, Heinrich Schuchardt a écrit :
quoted hunk ↗ jump to hunk
After reading the fdt u-boot overwrites the reg property of the memory node with <0x0 0x0 0x0 0x78000000>. To override this setting we have to use the property linux,usable-memory. If the first 16MB of the 2GB physical memory are used by the Linux kernel oops occur on the Odroid C2. For the Odroid C2 this patch replaces [RFT PATCH] ARM64: dts: meson-gxbb: Add reserved memory zone and usable memory range https://lkml.org/lkml/2016/12/12/127 Fixes: 855960342d1e7 ARM64: dts: amlogic: add Hardkernel ODROID-C2 CC: Neil Armstrong <narmstrong-rdvid1DuHRBWk0Htik3J/w@public.gmane.org> CC: Kevin Hilman <khilman-rdvid1DuHRBWk0Htik3J/w@public.gmane.org> Signed-off-by: Heinrich Schuchardt <redacted> --- arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts index 238fbeacd330..82ab94417940 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts@@ -61,7 +61,7 @@ memory@0 { device_type = "memory"; - reg = <0x0 0x0 0x0 0x80000000>; + linux,usable-memory = <0x0 0x01000000 0x0 0x7f000000>; }; usb_otg_pwr: regulator-usb-pwrs {
Hi Heinrich, Thanks a lot for testing and pushing this patch, indeed I missed this point abou u-boot overwriting reg. I will test this next week, and hopefully get these merged. Neil -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html