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SD. MMC 사용법
등록인 : 황효석 |

안녕하세요
오전에 전화드리고 다시 질문 올립니다.

제가 사용하는 보드는 mv2440 이구요
사용 OS는 리눅스 입니다

설치 문서를 통해서 SD/MMC를 포함한 커널 컴파일은 하였습니다.
-----------------------------------------------------------------
[root@localhost mv2440]# make menuconfig
에서 smdk2440a 를 불러온후

MMC/SD Card Support --->
<*> MMC support (new)
<*> Block device (Memory Card) support (NEW)

[root@localhost mv2440]# make dep
[root@localhost mv2440]# make zImage
-----------------------------------------------------------------
의 과정을 통해서 생성된 zImage를 tftp를 통해서 보드에 다운로드 하였습니다.

이후 부팅을 해서 마운트를 하려고 했는데요
s3c2440a_help.chm 을 참조하자면
보드의 root filesystem에 /dev/mmc 라는 장치 파일이 존재하는데
막상 부팅후 /dev 파일을 찾아보면 그런 파일이 없네요..

(저의 보드에서 LS한 결과)
------------------------------------------------------------------
[root@dooill dev]# ls -al
total 1
drwxr-xr-x 1 root root 0 Dec 31 1969 .
drwxr-xr-x 1 root root 212 Dec 31 1969 ..
crw------- 1 root root 8, 0 Dec 31 1969 .devfsd
crw------- 1 root root 5, 1 Dec 4 10:55 console
crw------- 1 root root 205, 5 Dec 31 1969 cua0
crw------- 1 root root 205, 6 Dec 31 1969 cua1
crw------- 1 root root 205, 7 Dec 31 1969 cua2
lr-xr-xr-x 1 root root 14 Dec 4 10:54 dsp -> /dev/sound/dsp
drwxr-xr-x 1 root root 0 Dec 31 1969 fb
lr-xr-xr-x 1 root root 9 Dec 4 10:54 fb0 -> /dev/fb/0
crw-rw-rw- 1 root root 1, 7 Dec 31 1969 full
lr-xr-xr-x 1 root root 21 Dec 4 10:54 h3600_tsraw -> /dev/touc
hscreen/0raw
drwxr-xr-x 1 root root 0 Dec 31 1969 i2c
crw-r----- 1 root root 1, 2 Dec 31 1969 kmem
drwxr-xr-x 1 root root 0 Dec 31 1969 loop
crw-r----- 1 root root 1, 1 Dec 31 1969 mem
lr-xr-xr-x 1 root root 16 Dec 4 10:54 mixer -> /dev/sound/mixe
r
drwxr-xr-x 1 root root 0 Dec 31 1969 mtd
drwxr-xr-x 1 root root 0 Dec 31 1969 mtdblock
crw-rw-rw- 1 root root 1, 3 Dec 31 1969 null
crw-r----- 1 root root 1, 4 Dec 31 1969 port
crw-rw-rw- 1 root root 5, 2 Dec 31 1969 ptmx
drwxr-xr-x 1 root root 0 Dec 31 1969 pts
drwxr-xr-x 1 root root 0 Dec 31 1969 pty
crw-r--r-- 1 root root 1, 8 Dec 31 1969 random
lr-xr-xr-x 1 root root 10 Dec 4 10:54 root -> mtdblock/2
lr-xr-xr-x 1 root root 13 Dec 4 10:54 rtc -> /dev/misc/rtc
drwxrwxrwt 2 root root 40 Dec 4 10:54 shm
drwxr-xr-x 1 root root 0 Dec 31 1969 sound
drwxr-xr-x 1 root root 0 Dec 31 1969 touchscreen
lr-xr-xr-x 1 root root 18 Dec 4 10:54 ts -> /dev/touchscreen/0
crw-rw-rw- 1 root root 5, 0 Dec 31 1969 tty
lr-xr-xr-x 1 root root 9 Dec 4 10:54 tty0 -> /dev/vc/0
lr-xr-xr-x 1 root root 9 Dec 4 10:54 tty1 -> /dev/vc/1
lr-xr-xr-x 1 root root 9 Dec 4 10:54 tty2 -> /dev/vc/2
crw------- 1 root root 204, 5 Dec 31 1969 ttyS0
crw------- 1 root root 204, 6 Dec 31 1969 ttyS1
crw------- 1 root root 204, 7 Dec 31 1969 ttyS2
crw-r--r-- 1 root root 1, 9 Dec 31 1969 urandom
drwxr-xr-x 1 root root 0 Dec 31 1969 usb
drwxr-xr-x 1 root root 0 Dec 31 1969 vc
drwxr-xr-x 1 root root 0 Dec 31 1969 vcc
crw-rw-rw- 1 root root 1, 5 Dec 31 1969 zero
------------------------------------------------------------------
파일 시스템을 잘못 설치한건지..
아니면 따로 추가를 해주어야 하는건지
아직 초보라 막막해서 질문 드립니다.
그럼 수고하세요~
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