| /* |
| * 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 |
| */ |
| |
| #ifndef _BFIN_CLOCKS_H |
| #define _BFIN_CLOCKS_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 |
