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求助 /dev/mtd 怎么創(chuàng)建？ |
| 作者：mail_zang 欄目：ARM技術(shù) |
本人在9200上跑2.6的核，這在以前有過發(fā)貼 現(xiàn)在想移植 nand 到2。6的核上，經(jīng)過一番艱辛終于能夠在啟動時找到NAND了，可是不知道怎樣才能把它加到/dev/mtd上，怎術(shù)才能創(chuàng)建/dev/mtdblock/有誰知道的請給點提示，本人將感激涕零！！ 以下是本人的啟動信息： ## Starting application at 0x21000000 ... Uncompressing Linux................................................................ done, booting the kernel. Linux version 2.6.16 (root@localhost.localdomain) (gcc version 3.4.1) #10 Thu Aug 10 17:03:00 UTC 2006 CPU: ARM920Tid(wb) [41129200] revision 0 (ARMv4T) Machine: ATMEL AT91RM9200-DK Warning: bad configuration page, trying to continue MEMORY policy: ECC disabled, Data cache writeback Clocks: CPU 179 MHz, MASTER 59 MHz, main 18.432 MHz CPU0: D VIVT write-back cache CPU0: I cache: 16384 bytes, associativity 64, 32 byte LINEs, 8 sets CPU0: D cache: 16384 bytes, associativity 64, 32 byte LINEs, 8 sets Built 1 zonelists Kernel command LINE: mem=32M console=ttyS0,115200 initrd=0x21100000,6000000 root=/dev/ram0 rw AT91: 128 gpio irqs in 4 banks PID hash table entries: 256 (order: 8, 4096 bytes) Console: colour DUMMY DEVICE 80x30 Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) MEMORY: 32MB = 32MB total MEMORY: 24476KB available (1612K code, 348K data, 88K init) Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok checking if image is initramfs...it isn't (no cpio MAGIC); looks like an initrd Freeing initrd MEMORY: 5859K NET: Registered protocol family 16 AT91: at91_add_DEVICE_nand(OK!). NetWinder Floating Point EMULATOR V0.97 (double PRECISION) JFFS2 version 2.2. (NAND) (SUMMARY) (C) 2001-2003 Red Hat, Inc. yaffs Aug 10 2006 16:58:31 Installing. io scheduler noop registered io scheduler anticipatory registered (default) AT91 Real Time Clock driver. AT91 SPI driver loaded AT91 Watchdog Timer enabled (5 seconds, nowayout=1) at91_usart.0: ttyS0 at MMIO 0xfefff200 (irq = 1) is a AT91_SERIAL at91_usart.1: ttyS1 at MMIO 0xfffc4000 (irq = 7) is a AT91_SERIAL RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize eth0: LINK now 100-FullDuplex eth0: AT91 ethernet at 0xfefbc000 int=24 100-FullDuplex (12:34:56:78:9a:bc) eth0: DAVICOM 9196 PHY (Copper) physmap FLASH DEVICE: 200000 at 10000000 phys_mapped_FLASH: Found 1 x16 DEVICEs at 0x0 in 16-bit bank SUPPORT for command set 0001 not present gen_probe: No supported Vendor Command Set found NAND DEVICE: MANUFACTURER ID: 0xec, Chip ID: 0x75 (SAMSUNG NAND 32MiB 3,3V 8-bit) Scanning DEVICE for bad blocks Creating 2 MTD partitions on "NAND 32MiB 3,3V 8-bit": 0x00000000-0x00020000 : "Yaffs 1" mtd: Giving out DEVICE 0 to Yaffs 1 0x00020000-0x00000000 : "User Space 2" mtd: Giving out DEVICE 1 to User Space 2 at91_cf: irqs det #64, io #0 udc: at91_udc version 8 March 2005 mice: PS/2 mouse DEVICE common for all mice i2c /dev entries driver at91_i2c at91_i2c: AT91 i2c bus driver. NET: Registered protocol family 2 IP route cache hash table entries: 512 (order: -1, 2048 bytes) TCP established hash table entries: 2048 (order: 1, 8192 bytes) TCP bind hash table entries: 2048 (order: 1, 8192 bytes) TCP: Hash tables configured (established 2048 bind 2048) TCP RENO registered TCP bic registered NET: Registered protocol family 1 NET: Registered protocol family 17 RAMDISK: Compressed image found at block 0 以下是/proc/mtd 中的信息： [root@AT91RM9200DK /proc]$+ mtd dev: size erasesize NAME mtd0: 00020000 00004000 "Yaffs 1" mtd1: fffe0000 00004000 "User Space 2" 謝謝��！ * - 本貼最后修改時間：2006-8-11 9:59:28 修改者：mail_zang |
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