topic Re: HELP for SD boot in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267477#M28156 <HTML><HEAD></HEAD><BODY><P>你可以参考i.MX_6Dual6Quad_Sabre-SD_Linux_User_Guide.pdf文档.</P><P>你可以执行以下命令获取mmc帮助信息.</P><P>MX6Q SABRESD U-Boot &gt; help mmc</P><P>mmc - MMC sub system</P><P>Usage:</P><P>mmc read addr blk# cnt</P><P>mmc write addr blk# cnt</P><P>mmc erase blk# cnt</P><P>mmc rescan</P><P>mmc part - lists available partition on current mmc device</P><P>mmc dev - show or set current mmc device </P><P>mmc bootpart - show or set boot partition</P><P>mmc list - lists available device</P><P></P><P>当你写相关信息到指定卡的时候,你可以用”mmc dev ” 显示或指定当前的卡.</P><P>同时需确定SD卡是写保护关掉的</P></BODY></HTML> Thu, 22 Aug 2013 01:40:36 GMT lily_zhang 2013-08-22T01:40:36Z HELP for SD boot https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267470#M28149 <HTML><HEAD></HEAD><BODY><P>hello! I'm using imx6 SD boot .ADN WHEN I SETENV IN UBOOT,IT STOPED.MX6Q SABRESD U-Boot </P><P></P><P></P><P>&gt; saveenv</P><P></P><P></P><P>Saving Environment to MMC...</P><P></P><P></P><P>Writing to MMC(0)...</P><P></P><P></P><P>&nbsp; I don't why it happend ,I need your help.</P><P> thanks</P></BODY></HTML> Wed, 21 Aug 2013 07:49:48 GMT https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267470#M28149 王显松 2013-08-21T07:49:48Z Re: HELP for SD boot https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267471#M28150 <HTML><HEAD></HEAD><BODY><P>会不会是卡上的开关拨到写保护了？</P></BODY></HTML> Wed, 21 Aug 2013 09:08:25 GMT https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267471#M28150 9crkzhou 2013-08-21T09:08:25Z Re: HELP for SD boot https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267472#M28151 <HTML><HEAD></HEAD><BODY><P>不是很清楚.板子是公司才给我研究的.资料都得自己找.有没有办法取消写保护呢？对于写保护这方面我也想过,但是在u-boot里面flinfo指令什么都不输出...</P></BODY></HTML> Wed, 21 Aug 2013 09:28:04 GMT https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267472#M28151 王显松 2013-08-21T09:28:04Z Re: HELP for SD boot https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267473#M28152 <HTML><HEAD></HEAD><BODY><P>我也不清楚.板子是别个公司做的,我也才拿到.不过写保护的话,是在u-boot界面连flinfo命令也不能用,什么都看不到呀</P></BODY></HTML> Wed, 21 Aug 2013 09:30:25 GMT https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267473#M28152 王显松 2013-08-21T09:30:25Z Re: HELP for SD boot https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267474#M28153 <HTML><HEAD></HEAD><BODY><P>你是用Freescale 的参考板吗?从你Ｕ-Boot的信息看，＂SABRESD U-Boot＂显示这是SabreSD板.</P><P>Freescale SabreSD的软件信息可以从以下网页下载:<A href="http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=IMX6_SW">http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=IMX6_SW</A></P><P></P><P>你可以将Ｕ-boot 完整的log附上，这个可能帮助分析</P></BODY></HTML> Wed, 21 Aug 2013 10:09:33 GMT https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267474#M28153 lily_zhang 2013-08-21T10:09:33Z Re: HELP for SD boot https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267475#M28154 <HTML><HEAD></HEAD><BODY><P>写保护是硬件实现的，卡上有个Lock，看到没？</P></BODY></HTML> Wed, 21 Aug 2013 11:27:03 GMT https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267475#M28154 9crkzhou 2013-08-21T11:27:03Z Re: HELP for SD boot https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267476#M28155 <HTML><HEAD></HEAD><BODY><P>是freescale板子.我的u-boot用的是Demo Image包里面的u-boot-mx6q-sabresd.bin</P></BODY></HTML> Thu, 22 Aug 2013 01:08:15 GMT https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267476#M28155 王显松 2013-08-22T01:08:15Z Re: HELP for SD boot https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267477#M28156 <HTML><HEAD></HEAD><BODY><P>你可以参考i.MX_6Dual6Quad_Sabre-SD_Linux_User_Guide.pdf文档.</P><P>你可以执行以下命令获取mmc帮助信息.</P><P>MX6Q SABRESD U-Boot &gt; help mmc</P><P>mmc - MMC sub system</P><P>Usage:</P><P>mmc read addr blk# cnt</P><P>mmc write addr blk# cnt</P><P>mmc erase blk# cnt</P><P>mmc rescan</P><P>mmc part - lists available partition on current mmc device</P><P>mmc dev - show or set current mmc device </P><P>mmc bootpart - show or set boot partition</P><P>mmc list - lists available device</P><P></P><P>当你写相关信息到指定卡的时候,你可以用”mmc dev ” 显示或指定当前的卡.</P><P>同时需确定SD卡是写保护关掉的</P></BODY></HTML> Thu, 22 Aug 2013 01:40:36 GMT https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267477#M28156 lily_zhang 2013-08-22T01:40:36Z Re: HELP for SD boot https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267478#M28157 <HTML><HEAD></HEAD><BODY><P><SPAN>可以私聊吗？我QQ:1485728127,或者新浪邮箱:</SPAN><A class="jive-link-email-small" href="mailto:wxs3314480@sina.cn">wxs3314480@sina.cn</A><SPAN>.有些问题需要向您请教</SPAN></P></BODY></HTML> Thu, 22 Aug 2013 01:51:13 GMT https://community.nxp.com/t5/i-MX-Processors/HELP-for-SD-boot/m-p/267478#M28157 王显松 2013-08-22T01:51:13Z