主题 : 请教高手关于sdhc card驱动的问题。 复制链接 | 浏览器收藏 | 打印
级别: 侠客
UID: 8515
精华: 0
发帖: 62
金钱: 535 两
威望: 233 点
综合积分: 124 分
注册时间: 2009-08-26
最后登录: 2014-06-25
楼主  发表于: 2010-11-28 19:38

 请教高手关于sdhc card驱动的问题。

我的内核是linux2.6.24,插入4G sdhc card启动内核,内核检测不到card,但是启动完内核插入卡,就能成功找到卡,是怎么回事呢?
调试发现CMD8命令在启动阶段,发给卡没信息回,启动完后就有卡返回的信息,就sdhc类型的卡是这样。奇怪呢。
级别: 侠客
UID: 8515
精华: 0
发帖: 62
金钱: 535 两
威望: 233 点
综合积分: 124 分
注册时间: 2009-08-26
最后登录: 2014-06-25
1楼  发表于: 2010-11-29 16:43
BUG INFO:

[    8.351066] mmc0: req done (CMD0): 0: 00000000 00000000 00000000 00000000
[    8.359641] create sysfs node for ssp configuration
[    8.364524] ALSA device list:
[    8.367483]   #0: AVLITE ALC5620 (RT5620)
[    8.371623] TCP cubic registered
[    8.374848] NET: Registered protocol family 17
[    8.379349] Bluetooth: L2CAP ver 2.14
[    8.383003] Bluetooth: L2CAP socket layer initialized
[    8.388051] Bluetooth: SCO (Voice Link) ver 0.6
[    8.392600] Bluetooth: SCO socket layer initialized
[    8.443580] Bluetooth: RFCOMM TTY layer initialized
[    8.448465] mmc0: req done (CMD8): -110: 00000000 00000000 00000000 00000000
[    8.455554] Bluetooth: RFCOMM socket layer initialized
[    8.460708] Bluetooth: RFCOMM ver 1.11
[    8.464453] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    8.469777] Bluetooth: BNEP filters: protocol multicast
[    8.475000] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[    8.525156] XScale iWMMXt coprocessor detected.
[    8.529723] mmc0: req failed (CMD5): -110, retrying...
[    8.579142] mmc0: req failed (CMD5): -110, retrying...
[    8.628565] mmc0: req failed (CMD5): -110, retrying...
[    8.678016] mmc0: req done (CMD5): -110: 00000000 00000000 00000000 00000000
[    8.691291] into mmc_rescan
[    8.738253] pxa168fb_ovly: frame buffer device was loaded to /dev/fb1 <Ovly>.
[    8.745432] mmc0: req done (CMD55): -110: 00000000 00000000 00000000 00000000
[    8.754571] RTC_num is 1
[    8.757118] mmp-rtc mmp-rtc: setting system clock to 1970-01-01 00:00:01 UTC (1)
[    8.764555] OmniVision ov7740 sensor driver, at your service
[    8.814672] mmc0: req done (CMD55): -110: 00000000 00000000 00000000 00000000
[    8.866122] mmc0: req done (CMD55): -110: 00000000 00000000 00000000 00000000
[    8.917588] mmc0: req done (CMD55): -110: 00000000 00000000 00000000 00000000
[    8.924743] out mmc_rescan
[    8.971727] mmc0: req done (CMD1): -110: 00000000 00000000 00000000 00000000