diff options
Diffstat (limited to 'arch/mips/mti-sead3/sead3-time.c')
| -rw-r--r-- | arch/mips/mti-sead3/sead3-time.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/arch/mips/mti-sead3/sead3-time.c b/arch/mips/mti-sead3/sead3-time.c index 048e781a17a..678d03d53c6 100644 --- a/arch/mips/mti-sead3/sead3-time.c +++ b/arch/mips/mti-sead3/sead3-time.c @@ -7,13 +7,11 @@ */ #include <linux/init.h> +#include <asm/cpu.h> #include <asm/setup.h> #include <asm/time.h> #include <asm/irq.h> #include <asm/mips-boards/generic.h> -#include <asm/mips-boards/prom.h> - -unsigned long cpu_khz; static int mips_cpu_timer_irq; static int mips_cpu_perf_irq; @@ -35,7 +33,7 @@ static void __iomem *status_reg = (void __iomem *)0xbf000410; */ static unsigned int __init estimate_cpu_frequency(void) { - unsigned int prid = read_c0_prid() & 0xffff00; + unsigned int prid = read_c0_prid() & (PRID_COMP_MASK | PRID_IMP_MASK); unsigned int tick = 0; unsigned int freq; unsigned int orig; @@ -43,11 +41,11 @@ static unsigned int __init estimate_cpu_frequency(void) local_irq_save(flags); - orig = readl(status_reg) & 0x2; /* get original sample */ + orig = readl(status_reg) & 0x2; /* get original sample */ /* wait for transition */ while ((readl(status_reg) & 0x2) == orig) ; - orig = orig ^ 0x2; /* flip the bit */ + orig = orig ^ 0x2; /* flip the bit */ write_c0_count(0); @@ -56,7 +54,7 @@ static unsigned int __init estimate_cpu_frequency(void) /* wait for transition */ while ((readl(status_reg) & 0x2) == orig) ; - orig = orig ^ 0x2; /* flip the bit */ + orig = orig ^ 0x2; /* flip the bit */ tick++; } @@ -71,7 +69,7 @@ static unsigned int __init estimate_cpu_frequency(void) (prid != (PRID_COMP_MIPS | PRID_IMP_25KF))) freq *= 2; - freq += 5000; /* rounding */ + freq += 5000; /* rounding */ freq -= freq%10000; return freq ; @@ -92,7 +90,7 @@ static void __init plat_perf_setup(void) } } -unsigned int __cpuinit get_c0_compare_int(void) +unsigned int get_c0_compare_int(void) { if (cpu_has_vint) set_vi_handler(cp0_compare_irq, mips_timer_dispatch); @@ -109,8 +107,6 @@ void __init plat_time_init(void) pr_debug("CPU frequency %d.%02d MHz\n", (est_freq / 1000000), (est_freq % 1000000) * 100 / 1000000); - cpu_khz = est_freq / 1000; - mips_scroll_message(); plat_perf_setup(); |