/************************************************************************************ * arch/arm/include/sam3u/chip.h * * Copyright (C) 2009-2010, 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ************************************************************************************/ #ifndef __ARCH_ARM_INCLUDE_SAM3U_CHIP_H #define __ARCH_ARM_INCLUDE_SAM3U_CHIP_H /************************************************************************************ * Included Files ************************************************************************************/ #include /************************************************************************************ * Pre-processor Definitions ************************************************************************************/ /* Get customizations for each supported chip */ #ifdef CONFIG_ARCH_CHIP_AT91SAM3U4E /* Internal memory */ # define CONFIG_SAM3U_SRAM0_SIZE 0x00008000 /* 32Kb */ # define CONFIG_SAM3U_SRAM1_SIZE 0x00004000 /* 16Kb */ # define CONFIG_SAM3U_NFCSRAM_SIZE 0x00001000 /* 4Kb */ /* DMA */ # define CONFIG_SAM3U_NDMACHAN 4 /* 4 DMA Channels */ /* Memory card interface */ # define CONFIG_SAM3U_MCI2 1 #else # error "Unknown SAM3U chip type" #endif /* NVIC priority levels *************************************************************/ /* Each priority field holds a priority value, 0-15. The lower the value, the greater * the priority of the corresponding interrupt. The processor implements only * bits[7:4] of each field, bits[3:0] read as zero and ignore writes. */ #define NVIC_SYSH_PRIORITY_MIN 0xf0 /* All bits[7:4] set is minimum priority */ #define NVIC_SYSH_PRIORITY_DEFAULT 0x80 /* Midpoint is the default */ #define NVIC_SYSH_PRIORITY_MAX 0x00 /* Zero is maximum priority */ #define NVIC_SYSH_PRIORITY_STEP 0x10 /* Four bits of interrupt priority used */ #define NVIC_SYSH_DISABLE_PRIORITY (NVIC_SYSH_PRIORITY_MAX + NVIC_SYSH_PRIORITY_STEP) #define NVIC_SYSH_SVCALL_PRIORITY NVIC_SYSH_PRIORITY_MAX /************************************************************************************ * Public Types ************************************************************************************/ /************************************************************************************ * Public Data ************************************************************************************/ /************************************************************************************ * Public Functions ************************************************************************************/ #endif /* __ARCH_ARM_INCLUDE_SAM3U_CHIP_H */