[问答]

去掉SD_MMC驱动的方法是什么？

1000 MMC

问答对人有帮助，内容完整，我也想知道答案 0 我的系统不需要SD卡和MMC卡支持，这部分电路去掉了，但启动会报告以下信息：[ 9.130137] mmc1 detect cd change [ 9.133958] mmc1 lock [ 9.136644] sunxi-mmc 1c0f000.sdmmc: sdc set ios: clk 0Hz bm PP pm UP vdd 22 width 1 timing LEGACY(SDR12) dt B [ 9.160078] sunxi-mmc 1c0f000.sdmmc: sdc set ios: clk 400000Hz bm PP pm ON vdd 22 width 1 timing LEGACY(SDR12) dt B [ 9.190991] sunxi-mmc 1c0f000.sdmmc: smc 1 p0 err, cmd 52, RTO !! [ 9.198731] sunxi-mmc 1c0f000.sdmmc: smc 1 p0 err, cmd 52, RTO !! [ 9.205523] sunxi-mmc 1c0f000.sdmmc: sdc set ios: clk 400000Hz bm PP pm ON vdd 22 width 1 timing LEGACY(SDR12) dt B [ 9.219862] sunxi-mmc 1c0f000.sdmmc: sdc set ios: clk 400000Hz bm PP pm ON vdd 22 width 1 timing LEGACY(SDR12) dt B [ 9.233512] sunxi-mmc 1c0f000.sdmmc: smc 1 p0 err, cmd 8, RTO !! [ 9.241165] sunxi-mmc 1c0f000.sdmmc: smc 1 p0 err, cmd 5, RTO !! [ 9.248830] sunxi-mmc 1c0f000.sdmmc: smc 1 p0 err, cmd 5, RTO !! [ 9.256460] sunxi-mmc 1c0f000.sdmmc: smc 1 p0 err, cmd 5, RTO !! [ 9.264083] sunxi-mmc 1c0f000.sdmmc: smc 1 p0 err, cmd 5, RTO !! [ 9.271677] sunxi-mmc 1c0f000.sdmmc: smc 1 p0 err, cmd 55, RTO !! [ 9.279405] sunxi-mmc 1c0f000.sdmmc: smc 1 p0 err, cmd 55, RTO !! [ 9.287114] sunxi-mmc 1c0f000.sdmmc: smc 1 p0 err, cmd 55, RTO !! [ 9.294828] sunxi-mmc 1c0f000.sdmmc: smc 1 p0 err, cmd 55, RTO !! [ 9.301562] sunxi-mmc 1c0f000.sdmmc: sdc set ios: clk 400000Hz bm OD pm ON vdd 22 width 1 timing LEGACY(SDR12) dt B [ 9.314237] sunxi-mmc 1c0f000.sdmmc: smc 1 p0 err, cmd 1, RTO !! [ 9.320874] sunxi-mmc 1c0f000.sdmmc: sdc set ios: clk 0Hz bm OD pm OFF vdd 0 width 1 timing LEGACY(SDR12) dt B [ 10.320379] gpu cooling callback set freq limit 384 [ 10.980052] mmc3 detect cd change [ 10.983890] mmc3 lock [ 10.986587] sunxi-mmc 1c12000.sdmmc: sdc set ios: clk 0Hz bm PP pm UP vdd 22 width 1 timing LEGACY(SDR12) dt B [ 11.010074] sunxi-mmc 1c12000.sdmmc: sdc set ios: clk 400000Hz bm PP pm ON vdd 22 width 1 timing LEGACY(SDR12) dt B [ 11.041052] sunxi-mmc 1c12000.sdmmc: smc 3 p3 err, cmd 52, RTO !! [ 11.048821] sunxi-mmc 1c12000.sdmmc: smc 3 p3 err, cmd 52, RTO !! [ 11.055586] sunxi-mmc 1c12000.sdmmc: sdc set ios: clk 400000Hz bm PP pm ON vdd 22 width 1 timing LEGACY(SDR12) dt B [ 11.069959] sunxi-mmc 1c12000.sdmmc: sdc set ios: clk 400000Hz bm PP pm ON vdd 22 width 1 timing LEGACY(SDR12) dt B [ 11.083549] sunxi-mmc 1c12000.sdmmc: smc 3 p3 err, cmd 8, RTO !! [ 11.091136] sunxi-mmc 1c12000.sdmmc: smc 3 p3 err, cmd 5, RTO !! [ 11.098763] sunxi-mmc 1c12000.sdmmc: smc 3 p3 err, cmd 5, RTO !! [ 11.106398] sunxi-mmc 1c12000.sdmmc: smc 3 p3 err, cmd 5, RTO !! [ 11.113983] sunxi-mmc 1c12000.sdmmc: smc 3 p3 err, cmd 5, RTO !! [ 11.121627] sunxi-mmc 1c12000.sdmmc: smc 3 p3 err, cmd 55, RTO !! [ 11.129354] sunxi-mmc 1c12000.sdmmc: smc 3 p3 err, cmd 55, RTO !! [ 11.137066] sunxi-mmc 1c12000.sdmmc: smc 3 p3 err, cmd 55, RTO !! [ 11.144795] sunxi-mmc 1c12000.sdmmc: smc 3 p3 err, cmd 55, RTO !! [ 11.151477] sunxi-mmc 1c12000.sdmmc: sdc set ios: clk 400000Hz bm OD pm ON vdd 22 width 1 timing LEGACY(SDR12) dt B [ 11.164135] sunxi-mmc 1c12000.sdmmc: smc 3 p3 err, cmd 1, RTO !! [ 11.170785] sunxi-mmc 1c12000.sdmmc: sdc set ios: clk 0Hz bm OD pm OFF vdd 0 width 1 timing LEGACY(SDR12) dt B 想把这些去掉，我注释了CONFIG_MMC，但编译出现以下错误： drivers/built-in.o: In function `scan_device_store': sunxi_dramfreq.c:(.text+0xb2d18): undefined reference to `sunxi_mmc_rescan_card' make: *** [vmlinux] Error 1 搜索代码发现只要定义了CONFIG_ARCH_SUNXI=y，就会有好几个地方调用sunxi_mmc_rescan_card函数，难道要把 CONFIG_ARCH_SUNXI=y去掉吗？ 0
2022-1-5 06:12:10　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × liutiefu 该类别下有 26 个回答。邀请回答 ze55me 该类别下有 20 个回答。邀请回答 tigerwang711 该类别下有 20 个回答。邀请回答杀狼000 该类别下有 19 个回答。邀请回答 zhuzb0754 该类别下有 19 个回答。邀请回答冰箱洗衣机该类别下有 18 个回答。邀请回答 YYXIAO 该类别下有 18 个回答。邀请回答 jjll652 该类别下有 17 个回答。邀请回答河神大人该类别下有 17 个回答。邀请回答 mede1001 该类别下有 17 个回答。邀请回答安德森大该类别下有 17 个回答。邀请回答 CDCNKA 该类别下有 17 个回答。邀请回答世态薄凉该类别下有 16 个回答。邀请回答熊本熊该类别下有 16 个回答。邀请回答 YOYOOO 该类别下有 16 个回答。邀请回答麻酱该类别下有 16 个回答。邀请回答 vinww特烦恼该类别下有 15 个回答。邀请回答 723662364d 该类别下有 15 个回答。邀请回答 musicalboy 该类别下有 15 个回答。邀请回答万航渡路该类别下有 15 个回答。邀请回答举报万物死相关推荐 • 请问系统怎样彻底去掉SD和MMC电路呢 755 • 请问starterware能用sy**ios的mmc驱动吗？ 964* • MMC/SD1接口 2648 • rt-thread SDIO驱动框架分析（SD卡flash驱动\SD Nand flash驱动） 1730 • 如何将A40i的mmc0_sdc0，SD卡去掉？ 1731 • SD卡和MMC卡之间有何关系 1916 • WT-ESP32-CAM的SD卡该如何去使用呢 1126 • 请问DM365中MMC/SD控制器,能否读写大容量SD卡？？ 2137 • 大容量SD卡驱动问题，64G以上的SDXC插入状态上电，偶尔会挂载失败 4000 • RS-MMC卡有什么常见故障？ 1731 1个回答

答案对人有帮助，有参考价值 0 在配置文件中“disable”掉SD卡的选项。 [emac0] emac0_used = 1 emac_rxd3 = port:PA00<2><3> emac_rxd2 = port:PA01<2><3> emac_rxd1 = port:PA02<2><3> emac_rxd0 = port:PA03<2><3> emac_txd3 = port:PA04<2><3> emac_txd2 = port:PA05<2><3> emac_txd1 = port:PA06<2><3> 把上面的“emac0_used = 1”改成“emac0_used = 0” 国内这些做MPU的挺恶心的，有时间不说干点正事，把核心技术好好提高一下，非要把个配置文件另起一套，玩鸡贼，真是闲的蛋疼！远没有原系统的好用。

2022-1-5 10:14:13 评论举报肖青