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Read kernel body load address from preamble by default

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The default behavior of dump_kernel_config is changed from using
CROS_32BIT_ENTRY_ADDR to reading from kernel preamble.  The main
motivation for this change is in preparation for ARM boards of which
kernel body load address cannot be CROS_32BIT_ENTRY_ADDR.  Since we do
not want that all ARM calling sides of dump_kernel_config have to carry
the kloadaddr argument, it would be better to let dump_kernel_config
read this address from the kernel preamble by default.

BUG=chromium-os:28077
TEST=Run dump_kernel_config w/ and w/o this change

Change-Id: I5eddcc35e5970dfce02cc66208438c57351f1c81
Reviewed-on: https://gerrit.chromium.org/gerrit/19660
Tested-by: Che-Liang Chiou <clchiou@chromium.org>
Reviewed-by: Don Garrett <dgarrett@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Commit-Ready: Che-Liang Chiou <clchiou@chromium.org>
This commit is contained in:
Che-Liang Chiou
2012-04-05 17:36:10 +08:00
committed by Gerrit
parent f9e82e9695
commit 036922ed8a
3 changed files with 8 additions and 1 deletions
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3
utility/include/kernel_blob.h
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@@ -17,6 +17,9 @@
// Alignment of various chunks within the kernel blob
#define CROS_ALIGN 4096
// Sentinel RAM address indicating that no entry address is specified
#define CROS_NO_ENTRY_ADDR (~0)
// RAM address where the 32-bit kernel expects to be started
#define CROS_32BIT_ENTRY_ADDR 0x100000