TE2410移植linux-2.6.14及调试过程总结(1)

ap_locks();

spin_lock_irqsave(&logbuf_lock, flags);

printk_cpu = smp_processor_id();

/* Emit the output into the temporary buffer */

printed_len = vscnprintf(printk_buf, sizeof(printk_buf), fmt, args);

printascii(printk_buf);

...

...

}

修改后内核启动成功,超级终端出来一大堆打印信息

## Booting image at 30008000 ...

Image Name:Linux-2.6.14

Created:2008-07-148:59:37 UTC

Image Type:ARM Linux Kernel Image (uncompressed)

Data Size:1028136 Bytes = 1004 kB

Load Address: 30008000

Entry Point:30008040

Verifying Checksum ... OK

XIP Kernel Image ... OK

Starting kernel ...

Uncompressing Linux.................................................................... done, booting the kernel.

<5>Linux version 2.6.14 (root@localhost.localdomain) (gcc version 3.4.1) #3 Mon Jul 14 04:59:17 EDT 2008

CPU: ARM920Tid(wb) [41129200] revision 0 (ARMv4T)

Machine: SMDK2410

Memory policy: ECC disabled, Data cache writeback

CPU S3C2410A (id 0x32410002)

S3C2410: core 202.800 MHz, memory 101.400 MHz, peripheral 50.700 MHz

<6>S3C2410 Clocks, (c) 2004 Simtec Electronics

CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on

<7>On node 0 totalpages: 16384

<7>DMA zone: 16384 pages, LIFO batch:7

<7>Normal zone: 0 pages, LIFO batch:1

<7>HighMem zone: 0 pages, LIFO batch:1

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

<5>Kernel command line: noinitrd root=/dev/mtdblock3 init=/linuxrcconsole= ttySAC0,115200 mem=64M

irq: clearing subpending status 00000003

PID hash table entries: 512 (order: 9, 8192 bytes)

timer tcon=00500000, tcnt a509, tcfg 00000200,00000000, usec 00001e4c

Console: colour dummy device 80x30

Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)

Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)

<6>Memory: 64MB = 64MB total

<5>Memory: 62592KB available (1708K code, 381K data, 92K init)

<7>Calibrating delay loop... 101.17 BogoMIPS (lpj=252928)

Mount-cache hash table entries: 512

<6>CPU: Testing write buffer coherency: ok

softlockup thread 0 started up.

<6>NET: Registered protocol family 16

S3C2410: Initialising architecture

<6>usbcore: registered new driver usbfs

<6>usbcore: registered new driver hub

S3C2410 DMA Driver, (c) 2003-2004 Simtec Electronics

DMA channel 0 at c4800000, irq 33

DMA channel 1 at c4800040, irq 34

DMA channel 2 at c4800080, irq 35

DMA channel 3 at c48000c0, irq 36

<4>NetWinder Floating Point Emulator V0.97 (double precision)

Console: switching to colour frame buffer device 80x25

<6>fb0: Virtual frame buffer device, using 1024K of video memory

S3C2410 RTC, (c) 2004 Simtec Electronics

<6>s3c2410_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2410

<6>s3c2410_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2410

<6>s3c2410_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2410

<6>io scheduler noop registered

<6>io scheduler anticipatory registered

<6>io scheduler deadline registered

<6>io scheduler cfq registered

RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize

S3C24XX NAND Driver, (c) 2004 Simtec Electronics

<6>s3c2410-nand: mapped registers at c4980000

<6>s3c2410-nand: timing: Tacls10ns, Twrph010ns, Twrph110ns

<4>No NAND device found!!!

<5>usbmon: debugfs is not available

<6>mice: PS/2 mouse device common for all mice

<6>NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 4096 (order: 2, 16384 bytes)

TCP bind hash table entries: 4096 (order: 2, 16384 bytes)

<6>TCP: Hash tables configured (established 4096 bind 4096)

<6>TCP reno registered

<6>TCP bic registered

<6>NET: Registered protocol family 1

<3>Root-NFS: No NFS server available, giving up.

<3>VFS: Unable to mount root fs via NFS, trying floppy.