高通增大分区以及烧录失败解决

一.EMMC分区

      1.修改modem惻 msm7627ym/core/storage/tools/jsdcc/partition_load/partition.xml里面的system或userdata空间大小.

      2.然后编译modem侧代码,将生成的在msm7627ym/core/storage/tools/jsdcc/partition_load/目录下的文件rawprogram0.xml替换掉AP惻

的vendor/qcom/proprietary/tools/ext4_sparse/rawprogram0.xml.

      3.然后修改device/qcom/msmxx/Boardconfig.mk里面的分区宏,使这个分区恰好小于modem惻的分区大小(因为modem惻被认为是物理分区)

      4.编译system即可.

二.nandflash分区

     只需要修改AP惻的lk和vendor两个目录即可:

      1.在bootable/bootloader/lk/target/msmxx/init.c中有个board_part_list的数组,system的分区在里面修改,同样被认为是物理分区.

      2.然后修改vendor下面的Boardconfig.mk,这个和前面emmc分区第三条一样.

      3.编译system即可.

三.fastboot分布烧录(download)

     进文件engine.c    msm7627a/system/core/fastboot/

      里面的函数fb_queue_flash添加如下补丁:

       void fb_queue_flash(const char *ptn, void *data, unsigned sz)
{
    Action *a;
    //[modify for fastboot download img step by step 2013.1.4] {begain
    int i;
    int imax= sz/54067200;//50MB
    int imod= sz%54067200;
    
    for(i=0; i<imax; i++){
        a = queue_action(OP_DOWNLOAD, "");
        a->data = data+i*54067200;
        a->size = 54067200;
        a->msg = mkmsg("sending '%s' (%d KB)", ptn, 54067200 / 1024);

        a = queue_action(OP_COMMAND, "flash:%s", ptn);
        a->msg = mkmsg("writing '%s'", ptn);
    }
    
    if(imod){
        a = queue_action(OP_DOWNLOAD, "");
        a->data = data+imax*54067200;
        a->size = imod;
        a->msg = mkmsg("sending '%s' (%d KB)", ptn, imod / 1024);

        a = queue_action(OP_COMMAND, "flash:%s", ptn);
        a->msg = mkmsg("writing '%s'", ptn);
    }
}

      进文件nand.c  msm7627a/bootable/bootloader/lk/platform/msm_shared/

       里面的flash_write函数  添加补丁

int flash_write(struct ptentry *ptn, unsigned extra_per_page, const void *data,
        unsigned bytes)
{
    unsigned page = ptn->start * num_pages_per_blk;
    unsigned lastpage = (ptn->start + ptn->length) * num_pages_per_blk;
    unsigned *spare = (unsigned*) flash_spare;
    const unsigned char *image = data;
    unsigned wsize = flash_pagesize + extra_per_page;
    unsigned n;
    int r;
    //[modify for fastboot download img step by step 2013.1.4] {begain
    static unsigned index=0;
    
    if (!strcmp(ptn->name, "system") ){
        page=page+index*25600;
        index++;
    }
    
    if (!strcmp(ptn->name, "system")&&bytes!=54067200 )
        index=0;
    //[modify for fastboot download img step by step 2013.1.4] }end
    if ((flash_info.type == FLASH_ONENAND_DEVICE) && (ptn->type == TYPE_MODEM_PARTITION))
    {
        dprintf(CRITICAL, "flash_write_image: feature not supported\n");
        return -1;
    }
  ...........................

}

这样就解决了分区和烧录的问题了!谢谢.