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authorDaisuke Nojiri <dnojiri@chromium.org>2014-02-27 14:56:39 -0800
committerMarc Jones <marc.jones@se-eng.com>2014-12-17 04:53:05 +0100
commitf574a327eed82ce00ea94d3f904f3dd8001d240c (patch)
tree61083257eb1013a8043a6569e483316b44e6f1f1 /src/arch/arm/Kconfig
parent032c84381751bab0fe1da2e963af41cbe52c303d (diff)
ARM: Use LPAE for Virtual Address Translation
This change introduces LPAE for virtual address translation. To enable it, set ARM_LPAE. Boot slows down about 4ms on Tegra124 with LPAE enabled. TEST=Booted nyan with and without LPAE. Built nyan_big and daisy. BUG=None BRANCH=none Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Tested-by: Daisuke Nojiri <dnojiri@google.com> Original-Change-Id: I74aa729b6fe6d243f57123dc792302359c661cad Original-Reviewed-on: https://chromium-review.googlesource.com/187862 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org> Original-Tested-by: Daisuke Nojiri <dnojiri@chromium.org> (cherry picked from commit 6d8c8b2bbdc70555076081eb3bfaabde7b4a398f) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I8980375c14758af35f7d5ec5244be963e5462d8a Reviewed-on: http://review.coreboot.org/7749 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/arch/arm/Kconfig')
-rw-r--r--src/arch/arm/Kconfig6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/arch/arm/Kconfig b/src/arch/arm/Kconfig
index 57849a64fc..e946f599f3 100644
--- a/src/arch/arm/Kconfig
+++ b/src/arch/arm/Kconfig
@@ -30,4 +30,8 @@ config CPU_HAS_BOOTBLOCK_INIT
config MAINBOARD_HAS_BOOTBLOCK_INIT
bool
- default n \ No newline at end of file
+ default n
+
+config ARM_LPAE
+ bool "Enable LPAE"
+ default n