Split target/Config.in.arch into multiple Config.in.* in arch/
target/Config.in.arch had become too long, and we want to remove the
target/ directory. So let's move it to arch/ and split it this way:
* An initial Config.in that lists the top-level architecture, and
sources the arch-specific Config.in.<arch> files, as well as
Config.in.common (see below)
* One Config.in.<arch> per architecture, listing the CPU families,
ABI choices, etc.
* One Config.in.common that defines the gcc mtune, march, mcpu values
and other hidden options.
[Peter: space->tab fix, mipsel64 little endian, mips3 as noted by Arnout]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2012-11-03 09:27:59 +01:00
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choice
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prompt "Target Architecture Variant"
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depends on BR2_sh
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default BR2_sh4
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help
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Specific CPU variant to use
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config BR2_sh2
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bool "sh2 (SH2 big endian)"
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config BR2_sh2a
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bool "sh2a (SH2A big endian)"
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config BR2_sh3
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bool "sh3 (SH3 little endian)"
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config BR2_sh3eb
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bool "sh3eb (SH3 big endian)"
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config BR2_sh4
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bool "sh4 (SH4 little endian)"
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config BR2_sh4eb
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bool "sh4eb (SH4 big endian)"
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config BR2_sh4a
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bool "sh4a (SH4A little endian)"
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config BR2_sh4aeb
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bool "sh4aeb (SH4A big endian)"
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endchoice
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arch: improve definition of gcc mtune, mcpu, etc.
As suggested by Yann E. Morin, there is a better way than our current
big Config.in.common to define the gcc mtune, mcpu, march,
etc. values. We can split the setting of those values in each
architecture file, which makes a lot more sense.
Therefore, the Config.in file now creates empty kconfig variables
BR2_ARCH, BR2_ENDIAN, BR2_GCC_TARGET_TUNE, BR2_GCC_TARGET_ARCH,
BR2_GCC_TARGET_ABI and BR2_GCC_TARGET_CPU. The values of those
variables are set by the individual Config.in.<arch> files. This is
possible because such files are now only conditionally included
depending on the top-level architecture that has been selected.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2012-11-15 04:53:48 +01:00
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config BR2_ARCH
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default "sh2" if BR2_sh2
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default "sh2a" if BR2_sh2a
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default "sh3" if BR2_sh3
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default "sh3eb" if BR2_sh3eb
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default "sh4" if BR2_sh4
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default "sh4eb" if BR2_sh4eb
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default "sh4a" if BR2_sh4a
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default "sh4aeb" if BR2_sh4aeb
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default "sh64" if BR2_sh64
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config BR2_ENDIAN
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default "LITTLE" if BR2_sh3 || BR2_sh4 || BR2_sh4a || \
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BR2_x86_64 || BR2_sh64
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default "BIG" if BR2_sh2 || BR2_sh2a || BR2_sh3eb || \
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BR2_sh4eb || BR2_sh4aeb
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