linux-kernel – uboot- MMC没有SDcard
发布时间:2020-12-13 22:51:58 所属栏目:Linux 来源:网络整理
导读:我试图在imx51飞思卡尔板上运行一个带有 linux rootfs的 linux内核. 我编译linux内核,根文件系统和u-boot并将映像复制到SD卡:分区0:启动分区1:rootfs和linux内核 但是我有以下错误: U-Boot 2011.12 (Mar 13 2012 - 14:15:41)CPU: Freescale i.MX51 famil
我试图在imx51飞思卡尔板上运行一个带有
linux rootfs的
linux内核.
我编译linux内核,根文件系统和u-boot并将映像复制到SD卡:分区0:启动分区1:rootfs和linux内核 但是我有以下错误: U-Boot 2011.12 (Mar 13 2012 - 14:15:41) CPU: Freescale i.MX51 family rev3.0 at 800 MHz Reset cause: POR Board: MX51EVK DRAM: 512 MiB WARNING: Caches not enabled MMC: FSL_SDHC: 0,FSL_SDHC: 1 MMC: no card present MMC init failed Using default environment In: serial Out: serial Err: serial Net: FEC Warning: failed to set MAC address Hit any key to stop autoboot: 0 MX51EVK U-Boot > mmcinfo MMC: no card present Device: FSL_SDHC Manufacturer ID: 0 OEM: 0 Name: Tran Speed: 0 Rd Block Len: 0 MMC version 0.0 High Capacity: No Capacity: 0 Bytes Bus Width: 0-bit MX51EVK U-Boot > mmc init mmc - MMC sub system Usage: mmc read addr blk# cnt mmc write addr blk# cnt mmc erase blk# cnt mmc rescan mmc part - lists available partition on current mmc device mmc dev [dev] [part] - show or set current mmc device [partition] mmc list - lists available devices MX51EVK U-Boot > mmc list FSL_SDHC: 0 FSL_SDHC: 1 MX51EVK U-Boot > mmc dev MMC: no card present mmc0(part 0) is current device MX51EVK U-Boot > 可能有什么不对? 解决方法
检查DIP开关,我意识到开关设置为从底部插槽启动SD卡,而我一直从顶部插槽启动.因此,它解决了我的问题
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