그 동안 임베디드 리눅스에 관심을 갖고 있다가 본격적으로 해보고자 ARM9 보드를 마련했습니다. 이 보드로 리눅스 포팅 과정과 S/W 개발에 관해서 하나씩 배워나갈 예정입니다.
오늘은 보드 받고 시리얼 콘솔로만 연결해봤습니다.
# dmesg Linux version 2.6.22.8 (wfellow@orange) (gcc version 4.1.1) #12 Wed Oct 24 14:49:49 KST 2007 CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177 Machine: DIYTOY AHAV9302 App/Dev Board Memory policy: ECC disabled, Data cache writeback On node 0 totalpages: 16384 DMA zone: 128 pages used for memmap DMA zone: 0 pages reserved DMA zone: 16256 pages, LIFO batch:3 Normal zone: 0 pages used for memmap 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. Total pages: 16256 Kernel command line: console=ttyAM0,115200 root=/dev/ram rw initrd=0xc0800000 ip=192.168.0.182:192.168.0.2:192.168.0.1:255.255.255.0:apple::off init=/sbin/init mem=64M PID hash table entries: 256 (order: 8, 1024 bytes) Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) Memory: 64MB = 64MB total Memory: 60720KB available (2108K code, 157K data, 108K init) Calibrating delay loop... 99.73 BogoMIPS (lpj=498688) Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok NET: Registered protocol family 16 ep93xx: PLL1 running at 399 MHz, PLL2 at 384 MHz ep93xx: FCLK 199 MHz, HCLK 99 MHz, PCLK 49 MHz Generic PHY: Registered new driver SCSI subsystem initialized NET: Registered protocol family 2 IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 2048 (order: 2, 16384 bytes) TCP bind hash table entries: 2048 (order: 1, 8192 bytes) TCP: Hash tables configured (established 2048 bind 2048) TCP reno registered checking if image is initramfs...it isn't (no cpio magic); looks like an initrd Freeing initrd memory: 1778K JFFS2 version 2.2. (NAND) 짤 2001-2006 Red Hat, Inc. io scheduler noop registered io scheduler deadline registered (default) Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled Serial: AMBA driver $Revision: 1.41 $ apb:uart1: ttyAM0 at MMIO 0x808c0000 (irq = 52) is a AMBA apb:uart2: ttyAM1 at MMIO 0x808d0000 (irq = 54) is a AMBA apb:uart3: ttyAM2 at MMIO 0x808e0000 (irq = 55) is a AMBA RAMDISK driver initialized: 2 RAM disks of 8192K size 1024 blocksize loop: module loaded Davicom DM9161E: Registered new driver Davicom DM9161A: Registered new driver Davicom DM9131: Registered new driver ep93xx-eth version 0.1 loading eth0: ep93xx on-chip ethernet, IRQ 39, 00:00:00:00:00:00. physmap platform flash device: 01000000 at 60000000 physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank Intel/Sharp Extended Query Table at 0x0031 Using buffer write method cfi_cmdset_0001: Erase suspend on write enabled erase region 0: offset=0x0,size=0x20000,blocks=128 cmdlinepart partition parsing not available Searching for RedBoot partition table in physmap-flash.0 at offset 0xfe0000 No RedBoot partition table detected in physmap-flash.0 ep93xx: dev (254:0) ep93xx-rtc ep93xx-rtc: rtc core: registered ep93xx as rtc0 i2c /dev entries driver TCP cubic registered NET: Registered protocol family 1 NET: Registered protocol family 17 NET: Registered protocol family 15 ep93xx-rtc ep93xx-rtc: setting the system clock to 1970-01-01 00:06:50 (410) eth0: generated random MAC address d2:41:65:be:62:31. IP-Config: Complete: device=eth0, addr=192.168.0.182, mask=255.255.255.0, gw=192.168.0.1, host=apple, domain=, nis-domain=(none), bootserver=192.168.0.2, rootserver=192.168.0.2, rootpath= RAMDISK: Compressed image found at block 0 VFS: Mounted root (ext2 filesystem). Freeing init memory: 108K
# cat /proc/cpuinfo Processor : ARM920T rev 0 (v4l) BogoMIPS : 99.73 Features : swp half thumb crunch CPU implementer : 0x41 CPU architecture: 4T CPU variant : 0x1 CPU part : 0x920 CPU revision : 0 Cache type : write-back Cache clean : cp15 c7 ops Cache lockdown : format A Cache format : Harvard I size : 16384 I assoc : 64 I line length : 32 I sets : 8 D size : 16384 D assoc : 64 D line length : 32 D sets : 8
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