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ARM: Generalize armv7 as arm.

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There are ARM systems which are essentially heterogeneous multicores where
some cores implement a different ARM architecture version than other cores. A
specific example is the tegra124 which boots on an ARMv4 coprocessor while
most code, including most of the firmware, runs on the main ARMv7 core. To
support SOCs like this, the plan is to generalize the ARM architecture so that
all versions are available, and an SOC/CPU can then select what architecture
variant should be used for each component of the firmware; bootblock,
romstage, and ramstage.

BUG=chrome-os-partner:23009
TEST=Built libpayload and coreboot for link, pit and nyan. Booted into the
bootblock on nyan.
BRANCH=None

Change-Id: I22e048c3bc72bd56371e14200942e436c1e312c2
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://chromium-review.googlesource.com/171338
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
This commit is contained in:
Gabe Black 2013-09-30 23:00:33 -07:00 • committed by chrome-internal-fetch
commit 8423a41529
117 changed files with 123 additions and 126 deletions
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2
src/console/Kconfig
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@ -2,7 +2,7 @@ menu "Console"
config BOOTBLOCK_CONSOLE
bool "Enable early (bootblock) console output."
depends on ARCH_ARMV7
depends on ARCH_ARM
default n
help
Use console during the bootblock if supported