diff options
| author | Maciej W. Rozycki <macro@linux-mips.org> | 2005-06-20 13:09:49 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2005-10-29 19:31:28 +0100 |
| commit | c6ad7b7d3cd7883810c05fad9d30303cf9368f63 (patch) | |
| tree | b8df8802eb177cac2e4588ea98b86077b076d9b5 | |
| parent | 8a185d14b665d454bde84c6ae067beade452e7f8 (diff) | |
Use macros for the RM7k cp0.config bits instead of magic numbers.
Minor clean-ups.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| -rw-r--r-- | arch/mips/mm/sc-rm7k.c | 18 | ||||
| -rw-r--r-- | include/asm-mips/mipsregs.h | 9 |
2 files changed, 16 insertions, 11 deletions
diff --git a/arch/mips/mm/sc-rm7k.c b/arch/mips/mm/sc-rm7k.c index 1df5aab82c1..9e8ff8badb1 100644 --- a/arch/mips/mm/sc-rm7k.c +++ b/arch/mips/mm/sc-rm7k.c @@ -103,7 +103,7 @@ static __init void __rm7k_sc_enable(void) { int i; - set_c0_config(R7K_CONF_SE); + set_c0_config(RM7K_CONF_SE); write_c0_taglo(0); write_c0_taghi(0); @@ -122,16 +122,16 @@ static __init void __rm7k_sc_enable(void) static __init void rm7k_sc_enable(void) { - if (read_c0_config() & R7K_CONF_SE) + if (read_c0_config() & RM7K_CONF_SE) return; - printk(KERN_INFO "Enabling secondary cache..."); + printk(KERN_INFO "Enabling secondary cache...\n"); run_uncached(__rm7k_sc_enable); } static void rm7k_sc_disable(void) { - clear_c0_config(R7K_CONF_SE); + clear_c0_config(RM7K_CONF_SE); } struct bcache_ops rm7k_sc_ops = { @@ -145,19 +145,19 @@ void __init rm7k_sc_init(void) { unsigned int config = read_c0_config(); - if ((config >> 31) & 1) /* Bit 31 set -> no S-Cache */ + if ((config & RM7K_CONF_SC)) return; printk(KERN_INFO "Secondary cache size %dK, linesize %d bytes.\n", (scache_size >> 10), sc_lsize); - if (!(config & R7K_CONF_SE)) + if (!(config & RM7K_CONF_SE)) rm7k_sc_enable(); /* * While we're at it let's deal with the tertiary cache. */ - if (!((config >> 17) & 1)) { + if (!(config & RM7K_CONF_TC)) { /* * We can't enable the L3 cache yet. There may be board-specific @@ -170,9 +170,9 @@ void __init rm7k_sc_init(void) * to probe it. */ printk(KERN_INFO "Tertiary cache present, %s enabled\n", - config&(1<<12) ? "already" : "not (yet)"); + (config & RM7K_CONF_TE) ? "already" : "not (yet)"); - if ((config >> 12) & 1) + if ((config & RM7K_CONF_TE)) rm7k_tcache_enabled = 1; } diff --git a/include/asm-mips/mipsregs.h b/include/asm-mips/mipsregs.h index 870717391a9..dd494cae4a4 100644 --- a/include/asm-mips/mipsregs.h +++ b/include/asm-mips/mipsregs.h @@ -425,6 +425,7 @@ #define CONF_SM (_ULCAST_(1) << 16) #define CONF_SC (_ULCAST_(1) << 17) #define CONF_EW (_ULCAST_(3) << 18) +#define CONF_SB (_ULCAST_(3) << 22) #define CONF_EP (_ULCAST_(15)<< 24) #define CONF_EC (_ULCAST_(7) << 28) #define CONF_CM (_ULCAST_(1) << 31) @@ -432,14 +433,18 @@ /* Bits specific to the R4xx0. */ #define R4K_CONF_SW (_ULCAST_(1) << 20) #define R4K_CONF_SS (_ULCAST_(1) << 21) -#define R4K_CONF_SB (_ULCAST_(3) << 22) /* Bits specific to the R5000. */ #define R5K_CONF_SE (_ULCAST_(1) << 12) #define R5K_CONF_SS (_ULCAST_(3) << 20) /* Bits specific to the RM7000. */ -#define R7K_CONF_SE (_ULCAST_(1) << 3) +#define RM7K_CONF_SE (_ULCAST_(1) << 3) +#define RM7K_CONF_TE (_ULCAST_(1) << 12) +#define RM7K_CONF_CLK (_ULCAST_(1) << 16) +#define RM7K_CONF_TC (_ULCAST_(1) << 17) +#define RM7K_CONF_SI (_ULCAST_(3) << 20) +#define RM7K_CONF_SC (_ULCAST_(1) << 31) /* Bits specific to the R10000. */ #define R10K_CONF_DN (_ULCAST_(3) << 3) |