From 364daf93208b7344b9618922004997f341ff1ca3 Mon Sep 17 00:00:00 2001 From: Juan Castillo Date: Fri, 16 May 2014 15:33:15 +0100 Subject: Reserve some DDR DRAM for secure use on FVP platforms TZC-400 is configured to set the last 16MB of DRAM1 as secure memory and the rest of DRAM as non-secure. Non-secure software must not attempt to access the 16MB secure area. Device tree files (sources and binaries) have been updated to match this configuration, removing that memory from the Linux physical memory map. To use UEFI and Linux with this patch, the latest version of UEFI and the updated device tree files are required. Check the user guide in the documentation for more details. Replaced magic numbers with #define for memory region definition in the platform security initialization function. Fixes ARM-software/tf-issues#149 Change-Id: Ia5d070244aae6c5288ea0e6c8e89d92859522bfe --- fdts/fvp-foundation-gicv2-psci.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fdts/fvp-foundation-gicv2-psci.dts') diff --git a/fdts/fvp-foundation-gicv2-psci.dts b/fdts/fvp-foundation-gicv2-psci.dts index bf368a01..8f3de9df 100644 --- a/fdts/fvp-foundation-gicv2-psci.dts +++ b/fdts/fvp-foundation-gicv2-psci.dts @@ -91,7 +91,7 @@ memory@80000000 { device_type = "memory"; - reg = <0x00000000 0x80000000 0 0x80000000>, + reg = <0x00000000 0x80000000 0 0x7F000000>, <0x00000008 0x80000000 0 0x80000000>; }; -- cgit v1.2.3