diff options
Diffstat (limited to 'arch/blackfin/mach-common')
| -rw-r--r-- | arch/blackfin/mach-common/Makefile | 2 | ||||
| -rw-r--r-- | arch/blackfin/mach-common/arch_checks.c | 55 | ||||
| -rw-r--r-- | arch/blackfin/mach-common/dpmc.S | 2 |
3 files changed, 57 insertions, 2 deletions
diff --git a/arch/blackfin/mach-common/Makefile b/arch/blackfin/mach-common/Makefile index 0279ede7039..4d7733dfd5d 100644 --- a/arch/blackfin/mach-common/Makefile +++ b/arch/blackfin/mach-common/Makefile @@ -4,7 +4,7 @@ obj-y := \ cache.o cacheinit.o cplbhdlr.o cplbmgr.o entry.o \ - interrupt.o lock.o irqpanic.o + interrupt.o lock.o irqpanic.o arch_checks.o obj-$(CONFIG_CPLB_INFO) += cplbinfo.o obj-$(CONFIG_BFIN_SINGLE_CORE) += ints-priority-sc.o diff --git a/arch/blackfin/mach-common/arch_checks.c b/arch/blackfin/mach-common/arch_checks.c new file mode 100644 index 00000000000..f9160d83b91 --- /dev/null +++ b/arch/blackfin/mach-common/arch_checks.c @@ -0,0 +1,55 @@ +/* + * File: arch/blackfin/mach-common/arch_checks.c + * Based on: + * Author: Robin Getz <rgetz@blackfin.uclinux.org> + * + * Created: 25Jul07 + * Description: Do some checking to make sure things are OK + * + * 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 + */ + +#include <asm/mach/anomaly.h> +#include <asm/mach-common/clocks.h> + +#ifdef CONFIG_BFIN_KERNEL_CLOCK + +# if (CONFIG_VCO_HZ > CONFIG_MAX_VCO_HZ) +# error "VCO selected is more than maximum value. Please change the VCO multipler" +# endif + +# if (CONFIG_SCLK_HZ > CONFIG_MAX_SCLK_HZ) +# error "Sclk value selected is more than maximum. Please select a proper value for SCLK multiplier" +# endif + +# if (CONFIG_SCLK_HZ < CONFIG_MIN_SCLK_HZ) +# error "Sclk value selected is less than minimum. Please select a proper value for SCLK multiplier" +# endif + +# if (ANOMALY_05000273) && (CONFIG_SCLK_HZ * 2 > CONFIG_CCLK_HZ) +# error "ANOMALY 05000273, please make sure CCLK is at least 2x SCLK" +# endif + +# if (CONFIG_SCLK_HZ > CONFIG_CCLK_HZ) && (CONFIG_SCLK_HZ != CONFIG_CLKIN_HZ) && (CONFIG_CCLK_HZ != CONFIG_CLKIN_HZ) +# error "Please select sclk less than cclk" +# endif + +#endif /* CONFIG_BFIN_KERNEL_CLOCK */ diff --git a/arch/blackfin/mach-common/dpmc.S b/arch/blackfin/mach-common/dpmc.S index 04194dca015..39fbc286110 100644 --- a/arch/blackfin/mach-common/dpmc.S +++ b/arch/blackfin/mach-common/dpmc.S @@ -300,7 +300,7 @@ ENTRY(_sleep_deeper) P0.H = hi(PLL_CTL); P0.L = lo(PLL_CTL); R5 = W[P0](z); - R0.L = (MIN_VC/CONFIG_CLKIN_HZ) << 9; + R0.L = (CONFIG_MIN_VCO_HZ/CONFIG_CLKIN_HZ) << 9; W[P0] = R0.l; SSYNC; |