blob: caaab49e9cfa18800c52d08a44b13fd820daaca2 [file] [log] [blame]
Robin Getzf16295e2007-08-03 18:07:17 +08001/*
2 * File: arch/blackfin/mach-common/arch_checks.c
3 * Based on:
4 * Author: Robin Getz <rgetz@blackfin.uclinux.org>
5 *
6 * Created: 25Jul07
7 * Description: Do some checking to make sure things are OK
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#include <asm/mach/anomaly.h>
31#include <asm/mach-common/clocks.h>
32
33#ifdef CONFIG_BFIN_KERNEL_CLOCK
34
35# if (CONFIG_VCO_HZ > CONFIG_MAX_VCO_HZ)
36# error "VCO selected is more than maximum value. Please change the VCO multipler"
37# endif
38
39# if (CONFIG_SCLK_HZ > CONFIG_MAX_SCLK_HZ)
40# error "Sclk value selected is more than maximum. Please select a proper value for SCLK multiplier"
41# endif
42
43# if (CONFIG_SCLK_HZ < CONFIG_MIN_SCLK_HZ)
44# error "Sclk value selected is less than minimum. Please select a proper value for SCLK multiplier"
45# endif
46
47# if (ANOMALY_05000273) && (CONFIG_SCLK_HZ * 2 > CONFIG_CCLK_HZ)
48# error "ANOMALY 05000273, please make sure CCLK is at least 2x SCLK"
49# endif
50
51# if (CONFIG_SCLK_HZ > CONFIG_CCLK_HZ) && (CONFIG_SCLK_HZ != CONFIG_CLKIN_HZ) && (CONFIG_CCLK_HZ != CONFIG_CLKIN_HZ)
52# error "Please select sclk less than cclk"
53# endif
54
55#endif /* CONFIG_BFIN_KERNEL_CLOCK */
Robin Getz3bebca22007-10-10 23:55:26 +080056
Mike Frysingera086ee222008-04-25 02:04:05 +080057#ifdef CONFIG_MEM_SIZE
Robin Getz3bebca22007-10-10 23:55:26 +080058#if (CONFIG_MEM_SIZE % 4)
59#error "SDRAM mem size must be multible of 4MB"
60#endif
Mike Frysingera086ee222008-04-25 02:04:05 +080061#endif