at91sam9261_inc.h

针对at91系列的arm的启动代码的编写有一个整体的说明

/* ----------------------------------------------------------------------------
 *         ATMEL Microcontroller Software Support  -  ROUSSET  -
 * ----------------------------------------------------------------------------
 * Copyright (c) 2006, Atmel Corporation

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// File Name           : AT91SAM9261.h
// Object              : AT91SAM9261 definitions
// Generated           : AT91 SW Application Group  03/30/2005 (17:05:06)
//
// CVS Reference       : /AT91SAM9261.pl/1.6/Tue Nov 16 09:17:24 2004//
// CVS Reference       : /SYS_SAM9261.pl/1.5/Thu Nov 18 13:22:33 2004//
// CVS Reference       : /HMATRIX1_SAM9261.pl/1.2/Mon Nov  8 16:38:17 2004//
// CVS Reference       : /PMC_SAM9261.pl/1.3/Mon Jul 19 13:36:27 2004//
// CVS Reference       : /HSMC3_SAM9261.pl/1.1/Tue Nov 16 09:16:07 2004//
// CVS Reference       : /HSDRAMC1_6100A.pl/1.2/Mon Aug  9 10:52:25 2004//
// CVS Reference       : /AIC_6075A.pl/1.1/Mon Jul 12 17:04:01 2004//
// CVS Reference       : /PDC_6074A.pl/1.1/Mon Jul 12 17:06:39 2004//
// CVS Reference       : /DBGU_6059B.pl/1.1/Mon Jul 12 17:16:42 2004//
// CVS Reference       : /PIO_6057A.pl/1.2/Thu Feb  3 10:29:42 2005//
// CVS Reference       : /RSTC_6098A.pl/1.3/Thu Nov  4 13:57:00 2004//
// CVS Reference       : /SHDWC_6122A.pl/1.3/Wed Oct  6 14:16:58 2004//
// CVS Reference       : /RTTC_6081A.pl/1.2/Thu Nov  4 13:57:22 2004//
// CVS Reference       : /PITC_6079A.pl/1.2/Thu Nov  4 13:56:22 2004//
// CVS Reference       : /WDTC_6080A.pl/1.3/Thu Nov  4 13:58:52 2004//
// CVS Reference       : /TC_6082A.pl/1.2/Thu Feb  3 10:30:28 2005//
// CVS Reference       : /UDP_6083B.pl/1.1/Mon Jul 12 17:55:20 2004//
// CVS Reference       : /MCI_6101A.pl/1.1/Tue Jul 13 06:33:59 2004//
// CVS Reference       : /TWI_6061A.pl/1.1/Tue Jul 13 06:38:23 2004//
// CVS Reference       : /US_6089A.pl/1.1/Mon Jul 12 17:25:43 2004//
// CVS Reference       : /SSC_6078A.pl/1.1/Tue Jul 13 07:10:41 2004//
// CVS Reference       : /_6088B.pl/1.2/Tue Jul 27 13:53:40 2004//
// CVS Reference       : /UHP_xxxxA.pl/1.1/Mon Jul 22 12:21:58 2002//
// CVS Reference       : /LCDC_6063A.pl/1.2/Wed Nov 24 15:55:51 2004//
//  ----------------------------------------------------------------------------

#ifndef AT91SAM9261_INC_H
#define AT91SAM9261_INC_H
// Hardware register definition

// *****************************************************************************
//              SOFTWARE API DEFINITION  FOR System Peripherals
// *****************************************************************************
// -------- GPBR : (SYS Offset: 0x1350) GPBR General Purpose Register --------
// -------- GPBR : (SYS Offset: 0x1354) GPBR General Purpose Register --------
// -------- GPBR : (SYS Offset: 0x1358) GPBR General Purpose Register --------
// -------- GPBR : (SYS Offset: 0x135c) GPBR General Purpose Register --------

// *****************************************************************************
//              SOFTWARE API DEFINITION  FOR SDRAM Controller Interface
// *****************************************************************************
// *** Register offset in AT91S_SDRAMC structure ***
#define SDRAMC_MR       ( 0) // SDRAM Controller Mode Register
#define SDRAMC_TR       ( 4) // SDRAM Controller Refresh Timer Register
#define SDRAMC_CR       ( 8) // SDRAM Controller Configuration Register
#define SDRAMC_HSR      (12) // SDRAM Controller High Speed Register
#define SDRAMC_LPR      (16) // SDRAM Controller Low Power Register
#define SDRAMC_IER      (20) // SDRAM Controller Interrupt Enable Register
#define SDRAMC_IDR      (24) // SDRAM Controller Interrupt Disable Register
#define SDRAMC_IMR      (28) // SDRAM Controller Interrupt Mask Register
#define SDRAMC_ISR      (32) // SDRAM Controller Interrupt Mask Register
#define SDRAMC_MDR      (36) // SDRAM Memory Device Register
// -------- SDRAMC_MR : (SDRAMC Offset: 0x0) SDRAM Controller Mode Register --------
#define AT91C_SDRAMC_MODE         (0xF <<  0) // (SDRAMC) Mode
#define 	AT91C_SDRAMC_MODE_NORMAL_CMD           (0x0) // (SDRAMC) Normal Mode
#define 	AT91C_SDRAMC_MODE_NOP_CMD              (0x1) // (SDRAMC) Issue a NOP Command at every access
#define 	AT91C_SDRAMC_MODE_PRCGALL_CMD          (0x2) // (SDRAMC) Issue a All Banks Precharge Command at every access
#define 	AT91C_SDRAMC_MODE_LMR_CMD              (0x3) // (SDRAMC) Issue a Load Mode Register at every access
#define 	AT91C_SDRAMC_MODE_RFSH_CMD             (0x4) // (SDRAMC) Issue a Refresh
#define 	AT91C_SDRAMC_MODE_EXT_LMR_CMD          (0x5) // (SDRAMC) Issue an Extended Load Mode Register
#define 	AT91C_SDRAMC_MODE_DEEP_CMD             (0x6) // (SDRAMC) Enter Deep Power Mode
// -------- SDRAMC_TR : (SDRAMC Offset: 0x4) SDRAMC Refresh Timer Register --------
#define AT91C_SDRAMC_COUNT        (0xFFF <<  0) // (SDRAMC) Refresh Counter
// -------- SDRAMC_CR : (SDRAMC Offset: 0x8) SDRAM Configuration Register --------
#define AT91C_SDRAMC_NC           (0x3 <<  0) // (SDRAMC) Number of Column Bits
#define 	AT91C_SDRAMC_NC_8                    (0x0) // (SDRAMC) 8 Bits
#define 	AT91C_SDRAMC_NC_9                    (0x1) // (SDRAMC) 9 Bits
#define 	AT91C_SDRAMC_NC_10                   (0x2) // (SDRAMC) 10 Bits
#define 	AT91C_SDRAMC_NC_11                   (0x3) // (SDRAMC) 11 Bits
#define AT91C_SDRAMC_NR           (0x3 <<  2) // (SDRAMC) Number of Row Bits
#define 	AT91C_SDRAMC_NR_11                   (0x0 <<  2) // (SDRAMC) 11 Bits
#define 	AT91C_SDRAMC_NR_12                   (0x1 <<  2) // (SDRAMC) 12 Bits
#define 	AT91C_SDRAMC_NR_13                   (0x2 <<  2) // (SDRAMC) 13 Bits
#define AT91C_SDRAMC_NB           (0x1 <<  4) // (SDRAMC) Number of Banks
#define 	AT91C_SDRAMC_NB_2_BANKS              (0x0 <<  4) // (SDRAMC) 2 banks
#define 	AT91C_SDRAMC_NB_4_BANKS              (0x1 <<  4) // (SDRAMC) 4 banks
#define AT91C_SDRAMC_CAS          (0x3 <<  5) // (SDRAMC) CAS Latency
#define 	AT91C_SDRAMC_CAS_2                    (0x2 <<  5) // (SDRAMC) 2 cycles
#define 	AT91C_SDRAMC_CAS_3                    (0x3 <<  5) // (SDRAMC) 3 cycles
#define AT91C_SDRAMC_DBW          (0x1 <<  7) // (SDRAMC) Data Bus Width
#define 	AT91C_SDRAMC_DBW_32_BITS              (0x0 <<  7) // (SDRAMC) 32 Bits datas bus
#define 	AT91C_SDRAMC_DBW_16_BITS              (0x1 <<  7) // (SDRAMC) 16 Bits datas bus
#define AT91C_SDRAMC_TWR          (0xF <<  8) // (SDRAMC) Number of Write Recovery Time Cycles
#define 	AT91C_SDRAMC_TWR_0                    (0x0 <<  8) // (SDRAMC) Value :  0
#define 	AT91C_SDRAMC_TWR_1                    (0x1 <<  8) // (SDRAMC) Value :  1
#define 	AT91C_SDRAMC_TWR_2                    (0x2 <<  8) // (SDRAMC) Value :  2
#define 	AT91C_SDRAMC_TWR_3                    (0x3 <<  8) // (SDRAMC) Value :  3
#define 	AT91C_SDRAMC_TWR_4                    (0x4 <<  8) // (SDRAMC) Value :  4
#define 	AT91C_SDRAMC_TWR_5                    (0x5 <<  8) // (SDRAMC) Value :  5
#define 	AT91C_SDRAMC_TWR_6                    (0x6 <<  8) // (SDRAMC) Value :  6
#define 	AT91C_SDRAMC_TWR_7                    (0x7 <<  8) // (SDRAMC) Value :  7
#define 	AT91C_SDRAMC_TWR_8                    (0x8 <<  8) // (SDRAMC) Value :  8
#define 	AT91C_SDRAMC_TWR_9                    (0x9 <<  8) // (SDRAMC) Value :  9
#define 	AT91C_SDRAMC_TWR_10                   (0xA <<  8) // (SDRAMC) Value : 10
#define 	AT91C_SDRAMC_TWR_11                   (0xB <<  8) // (SDRAMC) Value : 11
#define 	AT91C_SDRAMC_TWR_12                   (0xC <<  8) // (SDRAMC) Value : 12
#define 	AT91C_SDRAMC_TWR_13                   (0xD <<  8) // (SDRAMC) Value : 13
#define 	AT91C_SDRAMC_TWR_14                   (0xE <<  8) // (SDRAMC) Value : 14
#define 	AT91C_SDRAMC_TWR_15                   (0xF <<  8) // (SDRAMC) Value : 15
#define AT91C_SDRAMC_TRC          (0xF << 12) // (SDRAMC) Number of RAS Cycle Time Cycles
#define 	AT91C_SDRAMC_TRC_0                    (0x0 << 12) // (SDRAMC) Value :  0
#define 	AT91C_SDRAMC_TRC_1                    (0x1 << 12) // (SDRAMC) Value :  1
#define 	AT91C_SDRAMC_TRC_2                    (0x2 << 12) // (SDRAMC) Value :  2
#define 	AT91C_SDRAMC_TRC_3                    (0x3 << 12) // (SDRAMC) Value :  3
#define 	AT91C_SDRAMC_TRC_4                    (0x4 << 12) // (SDRAMC) Value :  4
#define 	AT91C_SDRAMC_TRC_5                    (0x5 << 12) // (SDRAMC) Value :  5
#define 	AT91C_SDRAMC_TRC_6                    (0x6 << 12) // (SDRAMC) Value :  6
#define 	AT91C_SDRAMC_TRC_7                    (0x7 << 12) // (SDRAMC) Value :  7
#define 	AT91C_SDRAMC_TRC_8                    (0x8 << 12) // (SDRAMC) Value :  8
#define 	AT91C_SDRAMC_TRC_9                    (0x9 << 12) // (SDRAMC) Value :  9
#define 	AT91C_SDRAMC_TRC_10                   (0xA << 12) // (SDRAMC) Value : 10
#define 	AT91C_SDRAMC_TRC_11                   (0xB << 12) // (SDRAMC) Value : 11
#define 	AT91C_SDRAMC_TRC_12                   (0xC << 12) // (SDRAMC) Value : 12
#define 	AT91C_SDRAMC_TRC_13                   (0xD << 12) // (SDRAMC) Value : 13
#define 	AT91C_SDRAMC_TRC_14                   (0xE << 12) // (SDRAMC) Value : 14
#define 	AT91C_SDRAMC_TRC_15                   (0xF << 12) // (SDRAMC) Value : 15
#define AT91C_SDRAMC_TRP          (0xF << 16) // (SDRAMC) Number of RAS Precharge Time Cycles
#define 	AT91C_SDRAMC_TRP_0                    (0x0 << 16) // (SDRAMC) Value :  0
#define 	AT91C_SDRAMC_TRP_1                    (0x1 << 16) // (SDRAMC) Value :  1
#define 	AT91C_SDRAMC_TRP_2                    (0x2 << 16) // (SDRAMC) Value :  2
#define 	AT91C_SDRAMC_TRP_3                    (0x3 << 16) // (SDRAMC) Value :  3
#define 	AT91C_SDRAMC_TRP_4                    (0x4 << 16) // (SDRAMC) Value :  4
#define 	AT91C_SDRAMC_TRP_5                    (0x5 << 16) // (SDRAMC) Value :  5
#define 	AT91C_SDRAMC_TRP_6                    (0x6 << 16) // (SDRAMC) Value :  6
#define 	AT91C_SDRAMC_TRP_7                    (0x7 << 16) // (SDRAMC) Value :  7
#define 	AT91C_SDRAMC_TRP_8                    (0x8 << 16) // (SDRAMC) Value :  8
#define 	AT91C_SDRAMC_TRP_9                    (0x9 << 16) // (SDRAMC) Value :  9
#define 	AT91C_SDRAMC_TRP_10                   (0xA << 16) // (SDRAMC) Value : 10
#define 	AT91C_SDRAMC_TRP_11                   (0xB << 16) // (SDRAMC) Value : 11
#define 	AT91C_SDRAMC_TRP_12                   (0xC << 16) // (SDRAMC) Value : 12
#define 	AT91C_SDRAMC_TRP_13                   (0xD << 16) // (SDRAMC) Value : 13
#define 	AT91C_SDRAMC_TRP_14                   (0xE << 16) // (SDRAMC) Value : 14
#define 	AT91C_SDRAMC_TRP_15                   (0xF << 16) // (SDRAMC) Value : 15
#define AT91C_SDRAMC_TRCD         (0xF << 20) // (SDRAMC) Number of RAS to CAS Delay Cycles