diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sh/Kconfig | 16 | ||||
| -rw-r--r-- | arch/sh/include/asm/timex.h | 10 |
2 files changed, 19 insertions, 7 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 0031a6979f3..2121fbb2ff4 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -540,14 +540,16 @@ config SH_TIMER_MTU2 config SH_PCLK_FREQ int "Peripheral clock frequency (in Hz)" - default "27000000" if CPU_SUBTYPE_SH7343 + depends on SH_CLK_CPG_LEGACY default "31250000" if CPU_SUBTYPE_SH7619 - default "32000000" if CPU_SUBTYPE_SH7722 - default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \ - CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ - CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \ - CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG || \ - CPU_SUBTYPE_SH7786 || CPU_SUBTYPE_SH7724 + default "33333333" if CPU_SUBTYPE_SH7770 || \ + CPU_SUBTYPE_SH7760 || \ + CPU_SUBTYPE_SH7705 || \ + CPU_SUBTYPE_SH7203 || \ + CPU_SUBTYPE_SH7206 || \ + CPU_SUBTYPE_SH7263 || \ + CPU_SUBTYPE_MXG || \ + CPU_SUBTYPE_SH7786 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R default "66000000" if CPU_SUBTYPE_SH4_202 default "50000000" diff --git a/arch/sh/include/asm/timex.h b/arch/sh/include/asm/timex.h index b556d49e5f2..18bf06d9c76 100644 --- a/arch/sh/include/asm/timex.h +++ b/arch/sh/include/asm/timex.h @@ -6,7 +6,17 @@ #ifndef __ASM_SH_TIMEX_H #define __ASM_SH_TIMEX_H +/* + * Only parts using the legacy CPG code for their clock framework + * implementation need to define their own Pclk value. If provided, this + * can be used for accurately setting CLOCK_TICK_RATE, otherwise we + * simply fall back on the i8253 PIT value. + */ +#ifdef CONFIG_SH_PCLK_FREQ #define CLOCK_TICK_RATE (CONFIG_SH_PCLK_FREQ / 4) /* Underlying HZ */ +#else +#define CLOCK_TICK_RATE 1193180 +#endif #include <asm-generic/timex.h> |