2008-08-11 09:32:57 with sd card on ADSP-BF548 EZ-KIT

Jingwei Cheng (CHINA)

Message: 60248

hello,every one!

I can't config SD card on ADSP-BF548 EZ-KIT .

Because I can't find /proc/spi_mmc.

How to config?

Thanks!!!

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2008-08-11 09:44:30 Re: with sd card on ADSP-BF548 EZ-KIT

Mike Frysinger (UNITED STATES)

Message: 60249

that doesnt really make sense ... the SD card interface on the BF548 is an on-chip peripheral. it is not a SPI-bitbanging device like the "spi_mmc" driver that is used on BF53x parts.

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2008-08-11 09:51:46 Re: with sd card on ADSP-BF548 EZ-KIT

Jingwei Cheng (CHINA)

Message: 60250

Thank you Mike,if I want to to use sd card on ADSP-BF548 EZ-KIT,it should be how to configure?

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2008-08-11 10:19:28 Re: with sd card on ADSP-BF548 EZ-KIT

Mike Frysinger (UNITED STATES)

Message: 60251

just enable the BF548 SD driver and the MMC block layer, then use /dev/mmcblk* like any other system

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2008-08-11 22:25:43 Re: with sd card on ADSP-BF548 EZ-KIT

Jingwei Cheng (CHINA)

Message: 60265

mount faile!

My kernel configuration is as follows: Other default.

Linux Kernel Configuration--->

Device Drivers--->

<*>MMC/SD card support--->

--- MMC/SD card support

[] MMC debugging

[] Allow unsafe resume (DANGEROUS)

--- MMC/SD Card Drivers

<*> MMC/SD block device drivers

--- MMC/SD Host Controller Drivers

<M> Blackfin Secure Digital Host support

[] Blackfin EZkit Rev 1.3 Missing SDH_CMD Pull Up Resistor Workaround

<> MMC/SD for SPI support (EXPERIMENTAL)

on target:

root:/dev>

root:/dev> ls

audio null ram7 tty18 tty33 tty49 tty7

console otp ram8 tty19 tty34 tty5 tty8

dsp ptmx ram9 tty2 tty35 tty50 tty9

fb0 pts random tty20 tty36 tty51 ttyBF0

full ram0 rtc0 tty21 tty37 tty52 urandom

i2c-0 ram1 snd tty22 tty38 tty53 vcs

kmem ram10 tty tty23 tty39 tty54 vcs1

kmsg ram11 tty0 tty24 tty4 tty55 vcsa

log ram12 tty1 tty25 tty40 tty56 vcsa1

mem ram13 tty10 tty26 tty41 tty57 watchdog

mixer ram14 tty11 tty27 tty42 tty58 zero

mtd0 ram15 tty12 tty28 tty43 tty59

mtd0ro ram2 tty13 tty29 tty44 tty6

mtd1 ram3 tty14 tty3 tty45 tty60

mtd1ro ram4 tty15 tty30 tty46 tty61

mtdblock0 ram5 tty16 tty31 tty47 tty62

mtdblock1 ram6 tty17 tty32 tty48 tty63

root:/dev> mount -t vfat -o sync /dev/mmcblock0 /mnt/mmc

mount: mounting /dev/mmcblock0 on /mnt/mmc failed

root:/dev>

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2008-08-12 21:51:21 Re: with sd card on ADSP-BF548 EZ-KIT

Mike Frysinger (UNITED STATES)

Message: 60355

clearly if /dev/mmcblock0 doesnt exist, then it isnt going to work. trying to run commands isnt going to change that.

mmcblock is like any other block device. you have to debug it one step at a time to figure out what is failing. start with the kernel boot output to see what the driver has to say about the driver and any cards.

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2008-08-12 22:26:34 Re: with sd card on ADSP-BF548 EZ-KIT

Cliff Cai (CHINA)

Message: 60356

Hi Jingwei,

I think you should configure a built-in sdh driver and choose the workaround ,just as following:

<*> Blackfin Secure Digital Host support

[*] Blackfin EZkit Rev 1.3 Missing SDH_CMD Pull Up Resistor Workaround

Cliff

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2008-08-13 03:43:10 回复： Re: with sd card on ADSP-BF548 EZ-KIT

Jingwei Cheng (CHINA)