141 lines
4.8 KiB
C
141 lines
4.8 KiB
C
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/*
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************************************************************************************************************************
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* eGON
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* the Embedded GO-ON Bootloader System
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*
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* Copyright(C), 2006-2008, SoftWinners Microelectronic Co., Ltd.
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* All Rights Reserved
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*
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* File Name : Boot0_head.c
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*
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* Author : Gary.Wang
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*
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* Version : 1.1.0
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*
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* Date : 2007.11.06
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*
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* Description : This file defines the file head part of Boot0, which contains some important
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* infomations such as magic, platform infomation and so on, and MUST be allocted in the
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* head of Boot0.
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*
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* Others : None at present.
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*
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*
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* History :
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*
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* <Author> <time> <version> <description>
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*
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* Gary.Wang 2007.11.06 1.1.0 build the file
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*
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************************************************************************************************************************
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*/
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#include "types.h"
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#include "boot0_v2.h"
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#pragma arm section rodata="fes1_head"
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#define DDR3_USED
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const boot0_file_head_t fes1_head = {
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{
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/* jump_instruction */ ( 0xEA000000 | ( ( ( sizeof( boot0_file_head_t ) + sizeof( int ) - 1 ) / sizeof( int ) - 2 ) & 0x00FFFFFF ) ),
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BOOT0_MAGIC,
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STAMP_VALUE,
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32,
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sizeof( boot_file_head_t ),
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BOOT_PUB_HEAD_VERSION,
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FES1_DRAM_RET_ADDR,
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FES1_RUN_ADDR,
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EGON_VERSION,
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{
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0, 0, '2','.','0','.','0',0
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},
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},
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#ifdef DDR3_USED
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{
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sizeof( boot0_private_head_t ),
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{ 0 },
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{ 0 },
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0,
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{
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{ 2, 22, 4, 1, 1, 0, 0, 0},
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{ 2, 23, 4, 1, 1, 0, 0, 0}
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},
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0,
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{ 0 },
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{ 0 },
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{ 0 }
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}
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#else
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{
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sizeof( boot0_private_head_t ),
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BOOT0_PRVT_HEAD_VERSION,
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{ 0x40000000,
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1024,
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180,
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1,
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1,
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0,
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(__dram_type_e)1,
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16,
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10,
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14,
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4,
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3,
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0,
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16,
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1024
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},
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0,
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{
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{ 2, 22, 4, 1, 1, 0, 0, 0},
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{ 2, 23, 4, 1, 1, 0, 0, 0}
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},
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0,
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{ 0 },
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{ 0 },
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{ 0 }
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}
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#endif
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};
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/*******************************************************************************
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*
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Boot_file_head<EFBFBD>е<EFBFBD>jump_instruction<EFBFBD>ֶ<EFBFBD>
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*
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* jump_instruction<EFBFBD>ֶδ<EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>תָ<EFBFBD>( B BACK_OF_Boot_file_head )<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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*תָ<EFBFBD>ִ<EFBFBD>к<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD>Boot_file_head<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ָ<EFBFBD>
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*
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* ARMָ<EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>Bָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>
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* +--------+---------+------------------------------+
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* | 31--28 | 27--24 | 23--0 |
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* +--------+---------+------------------------------+
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* | cond | 1 0 1 0 | signed_immed_24 |
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* +--------+---------+------------------------------+
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* <EFBFBD><EFBFBD>ARM Architecture Reference Manual<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>½<EFBFBD><EFBFBD>ͣ<EFBFBD>
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* Syntax :
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* B{<cond>} <target_address>
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* <cond> Is the condition under which the instruction is executed. If the
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* <cond> is ommitted, the AL(always,its code is 0b1110 )is used.
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* <target_address>
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* Specified the address to branch to. The branch target address is
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* calculated by:
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* 1. Sign-extending the 24-bit signed(wro's complement)immediate
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* to 32 bits.
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* 2. Shifting the result left two bits.
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* 3. Adding to the contents of the PC, which contains the address
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* of the branch instruction plus 8.
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*
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* <EFBFBD>ɴ˿<EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>8λΪ<EFBFBD><EFBFBD>0b11101010<EFBFBD><EFBFBD><EFBFBD><EFBFBD>24λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Boot_file_head<EFBFBD>Ĵ<EFBFBD>С<EFBFBD><EFBFBD>
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*̬<EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>
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* ( sizeof( boot_file_head_t ) + sizeof( int ) - 1 ) / sizeof( int )
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ͷռ<EFBFBD>õġ<EFBFBD><EFBFBD>֡<EFBFBD><EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD>
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* - 2 <EFBFBD><EFBFBD>ȥPCԤȡ<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* & 0x00FFFFFF <EFBFBD><EFBFBD><EFBFBD><EFBFBD>signed-immed-24
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* | 0xEA000000 <EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD>Bָ<EFBFBD><EFBFBD>
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*
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*******************************************************************************/
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