[问答]

请问系统怎样彻底去掉SD和MMC电路呢

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
2022-1-13 06:02:49　　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 tigerwang711 该类别下有 20 个回答。邀请回答 ze55me 该类别下有 20 个回答。邀请回答 zhuzb0754 该类别下有 19 个回答。邀请回答杀狼000 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 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 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 wang21cj 该类别下有 15 个回答。邀请回答 dfgsdf 该类别下有 15 个回答。邀请回答 szj0213 该类别下有 15 个回答。邀请回答梅利号该类别下有 15 个回答。邀请回答举报周臻庸相关推荐 • 去掉SD_MMC驱动的方法是什么？ 1013 • MMC/SD1接口 2650 • am335x系列的wince SD卡，请问为什么MMC_SDCD引脚有电平变化了，而SDCardDetect（）函数却检测不到呢？ 3511 • 请问DM365中MMC/SD控制器,能否读写大容量SD卡？？ 2153 • SD卡和MMC卡之间有何关系 1954 • 请问怎样去掉Android 7.0设置里的电池管理选项呢 1323 • 怎样才能在SDCARD中运行Android系统呢 1060 • OMAP3 Linux系统启动后，mmc1_clk默认会有输出这是为什么？怎么解决这个问题？ 1374 • 请问为什么AM3352 SD卡 mmcblk0: retrying using single block read导致系统卡死？ 3015 • 请问一下RK3399是怎样去掉HDMI音频的呢 2650 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”

2022-1-13 14:04:44 评论举报王强