| Robin Getz | f16295e | 2007-08-03 18:07:17 +0800 | [diff] [blame] | 1 | /* |
| 2 | * File: include/asm-blackfin/mach-common/clocks.h |
| 3 | * Based on: include/asm-blackfin/mach-bf537/bf537.h |
| 4 | * Author: Robin Getz <rgetz@blackfin.uclinux.org> |
| 5 | * |
| 6 | * Created: 25Jul07 |
| 7 | * Description: Common Clock definitions for various kernel files |
| 8 | * |
| 9 | * Modified: |
| 10 | * Copyright 2004-2007 Analog Devices Inc. |
| 11 | * |
| 12 | * Bugs: Enter bugs at http://blackfin.uclinux.org/ |
| 13 | * |
| 14 | * This program is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * This program is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with this program; if not, see the file COPYING, or write |
| 26 | * to the Free Software Foundation, Inc., |
| 27 | * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 28 | */ |
| 29 | |
| Robin Getz | 3bebca2 | 2007-10-10 23:55:26 +0800 | [diff] [blame] | 30 | #ifndef _BFIN_CLOCKS_H |
| 31 | #define _BFIN_CLOCKS_H |
| Robin Getz | f16295e | 2007-08-03 18:07:17 +0800 | [diff] [blame] | 32 | |
| 33 | #ifdef CONFIG_CCLK_DIV_1 |
| 34 | # define CONFIG_CCLK_ACT_DIV CCLK_DIV1 |
| 35 | # define CONFIG_CCLK_DIV 1 |
| 36 | #endif |
| 37 | |
| 38 | #ifdef CONFIG_CCLK_DIV_2 |
| 39 | # define CONFIG_CCLK_ACT_DIV CCLK_DIV2 |
| 40 | # define CONFIG_CCLK_DIV 2 |
| 41 | #endif |
| 42 | |
| 43 | #ifdef CONFIG_CCLK_DIV_4 |
| 44 | # define CONFIG_CCLK_ACT_DIV CCLK_DIV4 |
| 45 | # define CONFIG_CCLK_DIV 4 |
| 46 | #endif |
| 47 | |
| 48 | #ifdef CONFIG_CCLK_DIV_8 |
| 49 | # define CONFIG_CCLK_ACT_DIV CCLK_DIV8 |
| 50 | # define CONFIG_CCLK_DIV 8 |
| 51 | #endif |
| 52 | |
| 53 | #ifndef CONFIG_PLL_BYPASS |
| 54 | # ifndef CONFIG_CLKIN_HALF |
| 55 | # define CONFIG_VCO_HZ (CONFIG_CLKIN_HZ * CONFIG_VCO_MULT) |
| 56 | # else |
| 57 | # define CONFIG_VCO_HZ ((CONFIG_CLKIN_HZ * CONFIG_VCO_MULT)/2) |
| 58 | # endif |
| 59 | |
| 60 | # define CONFIG_CCLK_HZ (CONFIG_VCO_HZ/CONFIG_CCLK_DIV) |
| 61 | # define CONFIG_SCLK_HZ (CONFIG_VCO_HZ/CONFIG_SCLK_DIV) |
| 62 | |
| 63 | #else |
| 64 | # define CONFIG_VCO_HZ (CONFIG_CLKIN_HZ) |
| 65 | # define CONFIG_CCLK_HZ (CONFIG_CLKIN_HZ) |
| 66 | # define CONFIG_SCLK_HZ (CONFIG_CLKIN_HZ) |
| 67 | # define CONFIG_VCO_MULT 0 |
| 68 | #endif |
| 69 | |
| Robin Getz | 3bebca2 | 2007-10-10 23:55:26 +0800 | [diff] [blame] | 70 | #endif |