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) && (CONFIG_CCLK_HZ != CONFIG_CLKIN_HZ) 32 # error "Please select sclk less than cclk" 33 # endif 34 35 #endif /* CONFIG_BFIN_KERNEL_CLOCK */ 36 37 #if CONFIG_BOOT_LOAD < FIXED_CODE_END 38 # error "The kernel load address must be after the fixed code section" 39 #endif 40 41 #if (CONFIG_BOOT_LOAD & 0x3) 42 # error "The kernel load address must be 4 byte aligned" 43 #endif 44 45 /* The entire kernel must be able to make a 24bit pcrel call to start of L1 */ 46 #if ((0xffffffff - L1_CODE_START + 1) + CONFIG_BOOT_LOAD) > 0x1000000 47 # error "The kernel load address is too high; keep it below 10meg for safety" 48 #endif 49 50 #if ANOMALY_05000263 && defined(CONFIG_MPU) 51 # error the MPU will not function safely while Anomaly 05000263 applies 52 #endif 53 54 #if ANOMALY_05000448 55 # error You are using a part with anomaly 05000448, this issue causes random memory read/write failures - that means random crashes. 56 #endif 57 58 /* if 220 exists, can not set External Memory WB and L2 not_cached, either External Memory not_cached and L2 WB */ 59 #if ANOMALY_05000220 && \ 60 (defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK)) 61 # error "Anomaly 05000220 does not allow you to use Write Back cache with L2 or External Memory" 62 #endif 63 64 #if ANOMALY_05000491 && !defined(CONFIG_ICACHE_FLUSH_L1) 65 # error You need IFLUSH in L1 inst while Anomaly 05000491 applies 66 #endif 67