On Fri, Jul 28, 2017 at 10:03:12PM +0530, Ruchika Gupta wrote:
kASLR support in kernel requires a random number to be passed via chosen/kaslr-seed propert. sec_firmware generates this random seed which can then be passed in the device tree node.
sec_firmware reserves JR3 for it's own usage. Node for JR3 is removed from device-tree.
Signed-off-by: Ruchika Gupta ruchika.gupta@nxp.com
Changes from v1
- Extra spaces removed from the patch
- Support added for LSCH3 devices in the patch
- of calls replaced with fdt calls to remove compilation error with latest uboot
arch/arm/cpu/armv8/fsl-layerscape/fdt.c | 75 +++++++++++++++++++++++++++++-- arch/arm/cpu/armv8/sec_firmware.c | 53 ++++++++++++++++++++++ arch/arm/include/asm/armv8/sec_firmware.h | 8 ++++ 3 files changed, 133 insertions(+), 3 deletions(-)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c index f5f4840..8a21583 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c @@ -345,11 +345,78 @@ static void fdt_fixup_msi(void *blob) } #endif
+int fdt_fixup_kaslr(void *fdt) +{
This looks like common, non-layerscape specific code to me, so it should be in sec_firmware.c so other platforms can set the property as well.