1/* 2 * Do some checking to make sure things are OK 3 * 4 * Copyright 2007-2010 Analog Devices Inc. 5 * 6 * Licensed under the GPL-2 or later. 7 */ 8 9#include <asm/fixed_code.h> 10#include <mach/anomaly.h> 11#include <asm/clocks.h> 12 13#ifdef CONFIG_BFIN_KERNEL_CLOCK 14 15# if (CONFIG_VCO_HZ > CONFIG_MAX_VCO_HZ) 16# error "VCO selected is more than maximum value. Please change the VCO multipler" 17# endif 18 19# if (CONFIG_SCLK_HZ > CONFIG_MAX_SCLK_HZ) 20# error "Sclk value selected is more than maximum. Please select a proper value for SCLK multiplier" 21# endif 22 23# if (CONFIG_SCLK_HZ < CONFIG_MIN_SCLK_HZ) 24# error "Sclk value selected is less than minimum. Please select a proper value for SCLK multiplier" 25# endif 26 27# if (ANOMALY_05000273) && (CONFIG_SCLK_HZ * 2 > CONFIG_CCLK_HZ) 28# error "ANOMALY 05000273, please make sure CCLK is at least 2x SCLK" 29# endif 30 31# if (CONFIG_SCLK_HZ > CONFIG_CCLK_HZ) && (CONFIG_SCLK_HZ != CONFIG_CLKIN_HZ) && \ 32 (CONFIG_CCLK_HZ != CONFIG_CLKIN_HZ) 33# error "Please select sclk less than cclk" 34# endif 35 36#endif /* CONFIG_BFIN_KERNEL_CLOCK */ 37 38#if CONFIG_BOOT_LOAD < FIXED_CODE_END 39# error "The kernel load address must be after the fixed code section" 40#endif 41 42#if (CONFIG_BOOT_LOAD & 0x3) 43# error "The kernel load address must be 4 byte aligned" 44#endif 45 46/* The entire kernel must be able to make a 24bit pcrel call to start of L1 */ 47#if ((0xffffffff - L1_CODE_START + 1) + CONFIG_BOOT_LOAD) > 0x1000000 48# error "The kernel load address is too high; keep it below 10meg for safety" 49#endif 50 51#if ANOMALY_05000263 && defined(CONFIG_MPU) 52# error the MPU will not function safely while Anomaly 05000263 applies 53#endif 54 55#if ANOMALY_05000448 56# error You are using a part with anomaly 05000448, this issue causes random memory read/write failures - that means random crashes. 57#endif 58 59/* if 220 exists, can not set External Memory WB and L2 not_cached, either External Memory not_cached and L2 WB */ 60#if ANOMALY_05000220 && (defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || \ 61 defined(CONFIG_BFIN_L2_WRITEBACK)) 62# error "Anomaly 05000220 does not allow you to use Write Back cache with L2 or External Memory" 63#endif 64 65#if ANOMALY_05000491 && !defined(CONFIG_CACHE_FLUSH_L1) 66# error You need IFLUSH in L1 inst while Anomaly 05000491 applies 67#endif 68