diff options
Diffstat (limited to 'include/configs/EP1C20.h')
| -rw-r--r-- | include/configs/EP1C20.h | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/include/configs/EP1C20.h b/include/configs/EP1C20.h index 61d8e20f9b..3920d35264 100644 --- a/include/configs/EP1C20.h +++ b/include/configs/EP1C20.h @@ -94,7 +94,8 @@ /*------------------------------------------------------------------------ * CONSOLE *----------------------------------------------------------------------*/ -#if defined(CONFIG_CONSOLE_JTAG) +#define CONFIG_ALTERA_UART 1 /* Use altera uart */ +#if defined(CONFIG_ALTERA_JTAG_UART) #define CONFIG_SYS_NIOS_CONSOLE 0x021208b0 /* JTAG UART base addr */ #else #define CONFIG_SYS_NIOS_CONSOLE 0x02120840 /* UART base addr */ @@ -123,14 +124,16 @@ * TIMEBASE -- * * The high res timer defaults to 1 msec. Since it includes the period - * registers, we can slow it down to 10 msec using TMRCNT. If the default - * period is acceptable, TMRCNT can be left undefined. + * registers, the interrupt frequency can be reduced using TMRCNT. + * If the default period is acceptable, TMRCNT can be left undefined. + * TMRMS represents the desired mecs per tick (msecs per interrupt). *----------------------------------------------------------------------*/ +#define CONFIG_SYS_HZ 1000 /* Always 1000 */ #define CONFIG_SYS_NIOS_TMRBASE 0x02120820 /* Tick timer base addr */ -#define CONFIG_SYS_NIOS_TMRIRQ 3 /* Timer IRQ num */ -#define CONFIG_SYS_NIOS_TMRMS 10 /* 10 msec per tick */ -#define CONFIG_SYS_NIOS_TMRCNT (CONFIG_SYS_NIOS_TMRMS * (CONFIG_SYS_CLK_FREQ/1000)) -#define CONFIG_SYS_HZ (CONFIG_SYS_CLK_FREQ/(CONFIG_SYS_NIOS_TMRCNT + 1)) +#define CONFIG_SYS_NIOS_TMRIRQ 3 /* Timer IRQ num */ +#define CONFIG_SYS_NIOS_TMRMS 10 /* Desired period (msec)*/ +#define CONFIG_SYS_NIOS_TMRCNT \ + (CONFIG_SYS_NIOS_TMRMS * (CONFIG_SYS_CLK_FREQ/1000)) /*------------------------------------------------------------------------ * STATUS LED -- Provides a simple blinking led. For Nios2 each board |