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| author | Paul Burton <paul.burton@imgtec.com> | 2013-11-08 11:18:42 +0000 |
|---|---|---|
| committer | Daniel Schwierzeck <daniel.schwierzeck@gmail.com> | 2013-11-09 17:21:01 +0100 |
| commit | fa476f75bfff55772f0ebde3d5e02dc745e70f40 (patch) | |
| tree | 083e3e4b6f2bf615ee073cdf6d0c25445113bd00 /arch/mips/include/asm | |
| parent | 15c5cdf5aa6b292145e5e3e220ec1f42b11eff6f (diff) | |
| download | blackbird-obmc-uboot-fa476f75bfff55772f0ebde3d5e02dc745e70f40.tar.gz blackbird-obmc-uboot-fa476f75bfff55772f0ebde3d5e02dc745e70f40.zip | |
mips32: detect L1 cache sizes if they're not defined
For boards such as the MIPS Malta with an FPGA core card it is desirable
to be able to detect the L1 cache sizes at runtime, since they are not
dependant upon the board but on the FPGA bitstream in use. This patch
performs that detection when the CONFIG_SYS_[DI]CACHE_SIZE macros are
not defined by the board configuration. In cases where the sizes are
detected this patch also removes the restriction that the I-cache &
D-cache line sizes must be the same, as this is not necessarily true.
If the cache sizes are defined by a configuration then they will be
hardcoded as before, so this patch will not add overhead to such
boards.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Diffstat (limited to 'arch/mips/include/asm')
| -rw-r--r-- | arch/mips/include/asm/mipsregs.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h index be7e5c65ec..3571e4fdf2 100644 --- a/arch/mips/include/asm/mipsregs.h +++ b/arch/mips/include/asm/mipsregs.h @@ -494,11 +494,17 @@ #define MIPS_CONF1_PC (_ULCAST_(1) << 4) #define MIPS_CONF1_MD (_ULCAST_(1) << 5) #define MIPS_CONF1_C2 (_ULCAST_(1) << 6) +#define MIPS_CONF1_DA_SHIFT 7 #define MIPS_CONF1_DA (_ULCAST_(7) << 7) +#define MIPS_CONF1_DL_SHIFT 10 #define MIPS_CONF1_DL (_ULCAST_(7) << 10) +#define MIPS_CONF1_DS_SHIFT 13 #define MIPS_CONF1_DS (_ULCAST_(7) << 13) +#define MIPS_CONF1_IA_SHIFT 16 #define MIPS_CONF1_IA (_ULCAST_(7) << 16) +#define MIPS_CONF1_IL_SHIFT 19 #define MIPS_CONF1_IL (_ULCAST_(7) << 19) +#define MIPS_CONF1_IS_SHIFT 22 #define MIPS_CONF1_IS (_ULCAST_(7) << 22) #define MIPS_CONF1_TLBS (_ULCAST_(63)<< 25) |
