2007-08-03 18:07:17 +08:00
|
|
|
/*
|
|
|
|
|
* File: include/asm-blackfin/mach-common/clocks.h
|
|
|
|
|
* Based on: include/asm-blackfin/mach-bf537/bf537.h
|
|
|
|
|
* Author: Robin Getz <rgetz@blackfin.uclinux.org>
|
|
|
|
|
*
|
|
|
|
|
* Created: 25Jul07
|
|
|
|
|
* Description: Common Clock definitions for various kernel files
|
|
|
|
|
*
|
|
|
|
|
* Modified:
|
|
|
|
|
* Copyright 2004-2007 Analog Devices Inc.
|
|
|
|
|
*
|
|
|
|
|
* Bugs: Enter bugs at http://blackfin.uclinux.org/
|
|
|
|
|
*
|
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
|
* it under the terms of the GNU General Public License as published by
|
|
|
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
|
|
|
* (at your option) any later version.
|
|
|
|
|
*
|
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
* GNU General Public License for more details.
|
|
|
|
|
*
|
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
|
|
|
* along with this program; if not, see the file COPYING, or write
|
|
|
|
|
* to the Free Software Foundation, Inc.,
|
|
|
|
|
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
|
*/
|
|
|
|
|
|
2007-10-10 23:55:26 +08:00
|
|
|
#ifndef _BFIN_CLOCKS_H
|
|
|
|
|
#define _BFIN_CLOCKS_H
|
2007-08-03 18:07:17 +08:00
|
|
|
|
|
|
|
|
#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
|
|
|
|
|
|
2007-10-10 23:55:26 +08:00
|
|
|
#endif
|
