谁能给介绍下Sitara AM335x Bootload的流程？

具体的版本u-boot-201？  我用的最新版本ti-processor-sdk-linux-am335x-evm-03.03.00.04-Linux-x86-Install.bin 里面的u-boot-2016不一样 不知道在哪里可以下载你分析的版本

你好 我的板子是SD卡启动 用以前的版本 能启动u-boot     用最新的版本之后 插入SD卡之后就没反应 一点打印消息都没有 调试好几天了 不知道原因何在，拔掉SD卡后一直打印CCCCCC  望指点 

下载 ：http://software-dl.ti.com/processor-sdk-linux/esd/AM335X/03_02_00_05/index_FDS.html
其实两个版本相差不大，我的分析流程仍然可以在你的下载的版本进行参考

是自己做的板子还是TI EVM 板？参考我之前发过的帖子
http://www.deyisupport.com/question_answer/dsp_arm/sitara_arm/f/25/t/128026.aspx?pi239031348=1

请教AM335X基于StarterWare的启动问题，
bootload 是否可以做成可以MMCSD卡和NAND启动？
将启动设置00100，AM335X先检测从SD卡启动，如果没有SD卡后从NAND启动。
bootload中PLO判断是否从SD卡启动，如果从SD卡启动就将PLO和app复制分别拷贝到nand的0地址和512*1024地址后，再拷贝到0x8000000启动，
如果没有检测到SD卡就直接从nand启动。
不知道是否已经有这样的启动方案，方便项目量产及程序升级！
不知道这样是否行得通，请求给建议！

你说的PLO是MLO吧
这个方案是可以的，记得初始化NAND，然后再拷贝

您好，就在原来的基础上加 nandInfo = BlNANDConfigure();初始化的NAND的函数，以后再添加了

/**
* brief - Write bytes to NAND.
* param - flashAddr - NAND Flash address.n.
* param - size - Indicates the total size needs to be write to flash.n.
* param - destAddr - Source address where data needs to be copy from.n.
*
* return none
**/
void BlNANDWriteFlash (NandInfo_t *hNandInfo, unsigned int flashAddr, unsigned int size, unsigned char *srcAddr)
[
unsigned int currBlock = 0xFFFFFFFF;
unsigned int currPage = 0xFFFFFFFF;
unsigned int pageSize = hNandInfo->pageSize;
unsigned int blockSize = hNandInfo->blkSize;
unsigned int bytesHasWrite = 0;
unsigned int bytesToWrite = size;
NandStatus_t retVal;
/* Convert the flashAddr to block, page numbers */
unsigned int blkNum = (flashAddr / blockSize);
unsigned int pageNum = (flashAddr - (blkNum * blockSize)) / pageSize;
// Check the current block is whether GOOD until we are in a good block
while (NANDBadBlockCheck(hNandInfo,blkNum) != NAND_BLOCK_GOOD)
[
blkNum += 1;
pageNum = 0;
]
currPage = pageNum;
currBlock = blkNum;
// Erase falsh first!
retVal = NANDBlockErase( hNandInfo, currBlock);
if (retVal != NAND_STATUS_PASSED)
[
while(1);
]
// If we have one or more full blocks to copy, copy them directly
// Any leftover data (partial page) gets copied via the memory buffer
while (bytesHasWrite < bytesToWrite)
[
memcpy ((void *)txData,(unsigned char *)&srcAddr[bytesHasWrite],2048);
//CacheDataCleanBuff( (unsigned int) txData, 2048); //2015-10-29
retVal = NANDPageWrite( hNandInfo, currBlock, currPage,txData, &eccData[0]);
if(retVal != NAND_STATUS_PASSED)
[
while(1);
]
bytesHasWrite += pageSize;
currPage += 1;
// Check to see if curr page is at end of a block
if (currPage >= hNandInfo->pagesPerBlk)
[
// If so, increment current block until we are in a good block
do
[
currBlock += 1;
]
while (NANDBadBlockCheck(hNandInfo,currBlock)!= NAND_BLOCK_GOOD);
// Erase flash first!
retVal = NANDBlockErase( hNandInfo, currBlock);
if(retVal != NAND_STATUS_PASSED)
[
while(1);
]
currPage = 0;
]
]
]

上面代码新加进去的，前面的拷贝都正常，我是现将MLO和app先拷贝到ddr里面，再调用上面函数拷贝到NAND的，
BlNANDWriteFlash (nandInfo, 0, mlo_size, (unsigned char *)mlo_ddr_addr);
但是每次到
retVal = NANDPageWrite( hNandInfo, currBlock, currPage,txData, &eccData[0]);这里就死了，什么情况都搞不明白！我使用IAR软件调试仿真的！
这里都没有进去就死了（我已经把编译成库的文件全部合到工程里面，就是不使用库调用了）
望赐教！谢谢！

您好，就在原来的基础上加
BlPlatformNANDSetup();
nandInfo = BlNANDConfigure();
初始化的NAND的函数，以后再添加了

/**
* brief - Write bytes to NAND.
* param - flashAddr - NAND Flash address.n.
* param - size - Indicates the total size needs to be write to flash.n.
* param - destAddr - Source address where data needs to be copy from.n.
*
* return none
**/
void BlNANDWriteFlash (NandInfo_t *hNandInfo, unsigned int flashAddr, unsigned int size, unsigned char *srcAddr)
[
unsigned int currBlock = 0xFFFFFFFF;
unsigned int currPage = 0xFFFFFFFF;
unsigned int pageSize = hNandInfo->pageSize;
unsigned int blockSize = hNandInfo->blkSize;
unsigned int bytesHasWrite = 0;
unsigned int bytesToWrite = size;
NandStatus_t retVal;
/* Convert the flashAddr to block, page numbers */
unsigned int blkNum = (flashAddr / blockSize);
unsigned int pageNum = (flashAddr - (blkNum * blockSize)) / pageSize;
// Check the current block is whether GOOD until we are in a good block
while (NANDBadBlockCheck(hNandInfo,blkNum) != NAND_BLOCK_GOOD)
[
blkNum += 1;
pageNum = 0;
]
currPage = pageNum;
currBlock = blkNum;
// Erase falsh first!
retVal = NANDBlockErase( hNandInfo, currBlock);
if (retVal != NAND_STATUS_PASSED)
[
while(1);
]
// If we have one or more full blocks to copy, copy them directly
// Any leftover data (partial page) gets copied via the memory buffer
while (bytesHasWrite < bytesToWrite)
[
memcpy ((void *)txData,(unsigned char *)&srcAddr[bytesHasWrite],2048);
//CacheDataCleanBuff( (unsigned int) txData, 2048); //2015-10-29
retVal = NANDPageWrite( hNandInfo, currBlock, currPage,txData, &eccData[0]);
if(retVal != NAND_STATUS_PASSED)
[
while(1);
]
bytesHasWrite += pageSize;
currPage += 1;
// Check to see if curr page is at end of a block
if (currPage >= hNandInfo->pagesPerBlk)
[
// If so, increment current block until we are in a good block
do
[
currBlock += 1;
]
while (NANDBadBlockCheck(hNandInfo,currBlock)!= NAND_BLOCK_GOOD);
// Erase flash first!
retVal = NANDBlockErase( hNandInfo, currBlock);
if(retVal != NAND_STATUS_PASSED)
[
while(1);
]
currPage = 0;
]
]
]

上面代码新加进去的，前面的拷贝都正常，我是现将MLO和app先拷贝到ddr里面，再调用上面函数拷贝到NAND的，
BlNANDWriteFlash (nandInfo, 0, mlo_size, (unsigned char *)mlo_ddr_addr);
但是每次到
retVal = NANDPageWrite( hNandInfo, currBlock, currPage,txData, &eccData[0]);这里就死了，什么情况都搞不明白！我使用IAR软件调试仿真的！
这里都没有进去就死了（我已经把编译成库的文件全部合到工程里面，就是不使用库调用了）
望赐教！谢谢！

您好，您用nand启动的boot可以用吗，我也是使用startware的boot裸跑，不知道从nand启动的程序该如何写，向您请教下