[已解決] Hi3518E 插了Micro SD卡之后, 只能读

是驱动上面写保护了么？

[quote][url=forum.php?mod=redirect&goto=findpost&pid=11819&ptid=5229]Cyan 发表于 2015-1-26 14:46[/url]
是驱动上面写保护了么？[/quote]

已經解決了, 因為硬件上把SDIO_CWPR拉高 (跟了海思的參考schematics).
但 MMC_WRTPRT 寄存器要low才会关了write protection,
所以把SDIO_CWPR拉低就沒事了~~

不过还是謝謝解答!!!:)

ekse不错前期

[quote][url=forum.php?mod=redirect&goto=findpost&pid=11825&ptid=5229]city25 发表于 2015-1-26 15:26[/url]
已經解決了, 因為硬件上把SDIO_CWPR拉高 (跟了海思的參考schematics).
但 MMC_WRTPRT 寄存器要low才会关 ...[/quote]

您好，您看一下，是否跟您的问题一样。
全志A20 linux +QT 出现 Read-only file system，如何解决？
<23:00:59.558>mount /dev/nandd return 0
<23:00:59.870>[    2.774139] EXT4-fs error (device nandd): ext4_mb_generate_buddy:741: group 0, 6975 clusters in bitmap, 1 in gd
<23:00:59.870>[    2.785502] Aborting journal on device nandd-8.
<23:00:59.870>[    2.791035] EXT4-fs (nandd): Remounting filesystem read-only
<23:00:59.886>[    2.797645] EXT4-fs error (device nandd) in ext4_reserve_inode_write:4385: Journal has aborted
<23:00:59.901>[    2.807469] EXT4-fs error (device nandd) in ext4_reserve_inode_write:4385: Journal has aborted
<23:00:59.917>[    2.817189] EXT4-fs error (device nandd) in ext4_ext_remove_space:2741: Journal has aborted
<23:00:59.917>[    2.826603] EXT4-fs error (device nandd) in ext4_reserve_inode_write:4385: Journal has aborted
<23:00:59.932>[    2.836296] EXT4-fs error (device nandd) in ext4_orphan_del:2113: Journal has aborted
<23:00:59.932>[    2.845103] EXT4-fs error (device nandd) in ext4_reserve_inode_write:4385: Journal has aborted
<23:00:59.979>[    2.855091] EXT4-fs error (device nandd): mb_free_blocks:1301: group 0, block 19124:freeing already freed block (bit 19124)
<23:01:01.524>Profile start...
<23:01:01.524>autorun.sh...
/opt/qt_arma10/qt4/start/getIP.sh: line 2: can't create /opt/qt_arma10/qt4/start/getIp.txt: Read-only file system