57686f8485
The amd_mtrr.c file contains a copy of the fixed MTRR algorithm. However, the AMD code needs to handle the RdMem and WrMem attribute bits in the fixed MTRR MSRs. Instead of duplicating the code with the one slight change introduce a Kconfig option, X86_AMD_FIXED_MTRRS, which indicates that the RdMem and WrMem fields need to be handled for writeback fixed MTRR ranges. The order of how the AMD MTRR setup routine is maintained by providing a x86_setup_fixed_mtrrs_no_enable() function which does not enable the fixed MTRRs after setting them up. All Kconfig files which had a Makefile that included amd/mtrr in the subdirs-y now have a default X86_AMD_FIXED_MTRRS selection. There may be some overlap with the agesa and socket code, but I didn't know the best way to tease out the interdependency. Change-Id: I256d0210d1eb3004e2043b46374dcc0337432767 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/2866 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
25 lines
363 B
Text
25 lines
363 B
Text
config CPU_AMD_SOCKET_940
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bool
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if CPU_AMD_SOCKET_940
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config SOCKET_SPECIFIC_OPTIONS
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def_bool y
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select K8_HT_FREQ_1G_SUPPORT
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select CPU_AMD_MODEL_FXX
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select CACHE_AS_RAM
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select X86_AMD_FIXED_MTRRS
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config CPU_ADDR_BITS
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int
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default 40
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config DCACHE_RAM_BASE
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hex
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default 0xc8000
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config DCACHE_RAM_SIZE
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hex
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default 0x08000
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endif # CPU_AMD_SOCKET_940
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