diff options
Diffstat (limited to 'arch/blackfin/include/asm/clocks.h')
| -rw-r--r-- | arch/blackfin/include/asm/clocks.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/clocks.h b/arch/blackfin/include/asm/clocks.h new file mode 100644 index 00000000..6f0b6185 --- /dev/null +++ b/arch/blackfin/include/asm/clocks.h @@ -0,0 +1,51 @@ +/* + * Common Clock definitions for various kernel files + * + * Copyright 2007-2008 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#ifndef _BFIN_CLOCKS_H +#define _BFIN_CLOCKS_H + +#include <asm/dpmc.h> + +#ifdef CONFIG_CCLK_DIV_1 +# define CONFIG_CCLK_ACT_DIV CCLK_DIV1 +# define CONFIG_CCLK_DIV 1 +#endif + +#ifdef CONFIG_CCLK_DIV_2 +# define CONFIG_CCLK_ACT_DIV CCLK_DIV2 +# define CONFIG_CCLK_DIV 2 +#endif + +#ifdef CONFIG_CCLK_DIV_4 +# define CONFIG_CCLK_ACT_DIV CCLK_DIV4 +# define CONFIG_CCLK_DIV 4 +#endif + +#ifdef CONFIG_CCLK_DIV_8 +# define CONFIG_CCLK_ACT_DIV CCLK_DIV8 +# define CONFIG_CCLK_DIV 8 +#endif + +#ifndef CONFIG_PLL_BYPASS +# ifndef CONFIG_CLKIN_HALF +# define CONFIG_VCO_HZ (CONFIG_CLKIN_HZ * CONFIG_VCO_MULT) +# else +# define CONFIG_VCO_HZ ((CONFIG_CLKIN_HZ * CONFIG_VCO_MULT)/2) +# endif + +# define CONFIG_CCLK_HZ (CONFIG_VCO_HZ/CONFIG_CCLK_DIV) +# define CONFIG_SCLK_HZ (CONFIG_VCO_HZ/CONFIG_SCLK_DIV) + +#else +# define CONFIG_VCO_HZ (CONFIG_CLKIN_HZ) +# define CONFIG_CCLK_HZ (CONFIG_CLKIN_HZ) +# define CONFIG_SCLK_HZ (CONFIG_CLKIN_HZ) +# define CONFIG_VCO_MULT 0 +#endif + +#endif |