[coreboot-gerrit] New patch to review for coreboot: 14f905d Define a config variable for 64 bit address capability

Ronald G. Minnich (rminnich@gmail.com) gerrit at coreboot.org
Tue Apr 30 17:39:53 CEST 2013

Ronald G. Minnich (rminnich at gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3157


commit 14f905dbef8910bd48d5598d85ab4f9de9e6d710
Author: Ronald G. Minnich <rminnich at gmail.com>
Date:   Tue Apr 30 08:38:16 2013 -0700

    Define a config variable for 64 bit address capability
    For the most part, we don't need 64 bit addressing. In the future,
    it will be more important, but it's useful to have an indicator
    that a CPU can even run in that mode.
    Change-Id: I59e4061e07c16c5def7d9950749a55083612f6af
    Signed-off-by: Ronald G. Minnich <rminnich at gmail.com>
 src/cpu/Kconfig | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/cpu/Kconfig b/src/cpu/Kconfig
index ed7d6ab..5d348a3 100644
--- a/src/cpu/Kconfig
+++ b/src/cpu/Kconfig
@@ -1,6 +1,17 @@
 # Warning: This file is included whether or not the if is here.
 # The if controls how the evaluation occurs.
 # (See also src/Kconfig)
+config HAVE_64BIT
+	bool
+	default n
+	help
+	  Many of the CPUs in our tree can support 64-bit addresses.
+	  Currently, we don't use this capability on any of them.
+	  This variable indicates whether it is even possible,
+	  for a given CPU, to run in 64 bit mode. For the subset of
+	  CPUs which can support 64 bit mode it can be overridden.
 source src/cpu/armltd/Kconfig

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