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Vincent Fazio 2bd0431baf arch/Config.in.x86: consolidate Geode CPU targets
Since its introduction in 7d8a59b40, the BR2_x86_geode CPU target has
pointed to GCC -march=geode which targets AMD Geode processors [0].

This arch tuning enables MMX and 3DNow! extensions in GCC but these are
not currently reflected in the selected flags by BR2_x86_geode.

This is likely due to the confusing naming and history of "Geode".

The AMD Geode can trace its origins back to the Cyrix MediaGXm [1] and
then to the NSC Geode GXm/GXLV/GX1/GX2 [2]. All of these processors have
MMX instruction support listed in their datasheets. The NSC GX2 was the
first in the series to enable 3DNow!.

When 7fed07d3a4 introduced BR2_X86_CPU_HAS_MMX, Geode was skipped
presumably because it wasn't clear that the target is AMD Geode and
because the Wikipedia documentation for Geode is incomplete [2] with
regards to supported instructions as they all support MMX.

When f6cd56b9ce introduced BR2_X86_CPU_HAS_3DNOW, Geode was skipped
presumably for similar reasons.

Note: the in-tree olpc_xo1_defconfig uses BR2_x86_geode which is fine
as this hardware uses the AMD Geode [3].

Make it more clear that the target is AMD Geode by renaming the Kconfig
menu option and add both MMX and 3DNow! flags to BR2_x86_geode.

This also means that BR2_x86_geode_mmx is no longer needed, and can be
removed. No legacy handling is needed since BR2_x86_geode_mmx has
never been part of any release.

[0]: https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/config/i386/geode.md;;hb=HEAD
[1]: https://en.wikipedia.org/wiki/MediaGX#MediaGXm
[2]: https://en.wikipedia.org/wiki/Geode_%28processor%29
[3]: https://wiki.laptop.org/go/Hardware_specification

Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2023-08-01 23:16:02 +02:00
arch arch/Config.in.x86: consolidate Geode CPU targets 2023-08-01 23:16:02 +02:00
board board/bsh/imx8mn-bsh-smm-s2/readme.txt: fix typo 2023-07-30 12:36:09 +02:00
boot boot/barebox: add optional dependencies on host-openssl and host-libusb 2023-07-28 22:40:39 +02:00
configs configs/nitrogen*: bump kernel rev to 42598e4b 2023-07-29 11:03:38 +02:00
docs
fs
linux
package package/binutils: drop 2.38.x series 2023-08-01 23:12:01 +02:00
support support/testing: TestNoTimezone: fix the test case for Glibc 2023-08-01 23:15:18 +02:00
system
toolchain toolchain/toolchain-external/toolchain-external-custom: add gcc 13 version selection 2023-07-28 22:04:49 +02:00
utils utils/docker-run: fix running when CWD is not MAIN_DIR 2023-07-31 20:56:57 +02:00
.checkpackageignore package/binutils: drop 2.38.x series 2023-08-01 23:12:01 +02:00
.clang-format
.defconfig
.flake8
.gitignore
.gitlab-ci.yml
.shellcheckrc
CHANGES
Config.in package/sam-ba: drop 32bit host lib requirement 2023-07-30 23:41:44 +02:00
Config.in.legacy package/binutils: drop 2.38.x series 2023-08-01 23:12:01 +02:00
COPYING
DEVELOPERS DEVELOPERS: add Nicolas Carrier for package/composer/ 2023-08-01 23:11:27 +02:00
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