From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from dell8.sinamail.com ([210.68.8.11] helo=sinamail.com) by pentafluge.infradead.org with smtp (Exim 3.22 #1 (Red Hat Linux)) id 16mlnk-0001Ps-00 for ; Mon, 18 Mar 2002 01:19:04 +0000 Message-ID: <20020318011812.26887.qmail@sinamail.com> From: "=?big5?B?cmVnaWdhbw==?=" Subject: =?big5?B?L2Rldi9tdGRibG9jazAgOiBObyBzdWNoIGRldmljZQ==?= To: Date: Mon, 18 Mar 2002 09:18:12 +0800 Content-Type: text/plain;charset="big5" Content-Disposition: inline Sender: linux-mtd-admin@lists.infradead.org Errors-To: linux-mtd-admin@lists.infradead.org List-Help: List-Post: List-Subscribe: , List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: Hi I have a board with two Intel Flash E28F640. The Flash mapping address starts from 0xff000000 to 0xffffffff Each Flash is 8 MB , so the total size is 16 MB I use kernel 2.4.18 , and enable the MTD options with CONFIG_MTD CONFIG_MTD_CHAR CONFIG_MTD_BLOCK CONFIG_MTD_CFI CONFIG_MTD_CFI_GEOMETRY CONFIG_MTD_CFI_B1 CONFIG_MTD_CFI_I2 CONFIG_MTD_CFI_INTELEXT CONFIG_MTD_PHYSMAP CONFIG_MTD_PHYSMAP_START ( 0xff000000 ) CONFIG_MTD_PHYSMAP_LEN ( 0x01000000 ) CONFIG_MTD_PHYSMAP_BUSWIDTH ( 1 ) I also enable the JFFS option in File systems When I boot the kernel , I can see the detection message physmap flash device: 1000000 at ff000000 Physically mapped flash: Found 1 x16 devices at 0x800000 in 8-bit mode mtd: Giving out device 0 to Physically mapped flash I cat /proc/mtd and it shows the MTD device # cat /proc/mtd dev: size erasesize name mtd0: 01000000 00020000 "Physically mapped flash" Now I use mkfs.jffs to build a jffs image(img_file) and cp it to /dev/mtd0 # cp img_file /dev/mtd0 But whenever I try to mount /dev/mtdblock0 , it shows No such device # mount -t jffs /dev/mtdblock0 tmp mount: Mounting /dev/mtdblock0 on /tmp/tmp failed: No such device I am sure that I have the device file ( mtdblock0 ) in the /dev/ # ls -la /dev/mtdblock0 brw-r--r-- 1 root root 31, 0 Dec 11 2001 /dev/mtdblock0 Does anyone have any suggestions about what I might be getting wrong ? thanks ! ================================================================== 〔新浪網公告〕 上網免撥接費! [帳號] sina [密碼] sina@u2online [撥接電話] 4050-8888， 或請至http://u2.sina.com.tw/sina下載自動設定軟體