/* * 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/fixed_code.h> #include <mach/anomaly.h> #include <asm/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 */ #if CONFIG_BOOT_LOAD < FIXED_CODE_END # error "The kernel load address must be after the fixed code section" #endif #if (CONFIG_BOOT_LOAD & 0x3) # error "The kernel load address must be 4 byte aligned" #endif /* The entire kernel must be able to make a 24bit pcrel call to start of L1 */ #if ((0xffffffff - L1_CODE_START + 1) + CONFIG_BOOT_LOAD) > 0x1000000 # error "The kernel load address is too high; keep it below 10meg for safety" #endif #if ANOMALY_05000448 # error You are using a part with anomaly 05000448, this issue causes random memory read/write failures - that means random crashes. #endif