diff options
Diffstat (limited to 'arch/blackfin/include/asm/clocks.h')
-rw-r--r-- | arch/blackfin/include/asm/clocks.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/clocks.h b/arch/blackfin/include/asm/clocks.h new file mode 100644 index 000000000000..033bba92d61c --- /dev/null +++ b/arch/blackfin/include/asm/clocks.h | |||
@@ -0,0 +1,70 @@ | |||
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 | |||
30 | #ifndef _BFIN_CLOCKS_H | ||
31 | #define _BFIN_CLOCKS_H | ||
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 | |||
70 | #endif | ||