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http://blog.verycd.com/light/showentry=50108 选择了修改Linux Kernel中linux-2.6.25/arch/arm/mach-at91目录下的board-dk.c文件： 将文件最后的MACHINE_START(AT91RM9200DK, "Atmel AT91RM9200-DK") 修改为MACHINE_START(AT91RM9200, "Atmel AT91RM9200") 重新编译内核并更新到目标板，启动的信息如下： 引用
U-Boot> bootm 100a0000## Booting image at 100a0000 ... Image Name: AT91 Kernel Image Type: ARM Linux Kernel Image (gzip compressed) Data Size: 1121241 Bytes = 1.1 MB Load Address: 20008000 Entry Point: 20008000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK No initrd ## Transferring control to Linux (at address 20008000) ... Starting kernel ... Uncompressing Linux.......................................................................... done, booting the kernel. Linux version 2.6.25 ([EMAIL PROTECTED]) (gcc version 4.0.0 (DENX ELDK 4.1 4.0.0)) #2 Thu May 22 15:07:58 CST 2008 CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177 Machine: Atmel AT91RM9200 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 in Zone order, mobility grouping on. Total pages: 8128 Kernel command line: mem=32M console=ttyS0,115200 initrd=0x20410000,3145728 root=/dev/ram0 rw AT91: 128 gpio irqs in 4 banks PID hash table entries: 128 (order: 7, 512 bytes) Console: colour dummy device 80x30 console [ttyS0] enabled Dentry cache hash table entries: 4096 (order: 2, 16384 bytes) Inode-cache hash table entries: 2048 (order: 1, 8192 bytes) Memory: 32MB = 32MB total Memory: 27016KB available (2064K code, 186K data, 104K init) SLUB: Genslabs=12, HWalign=32, Order=0-1, MinObjects=4, CPUs=1, Nodes=1 Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok net_namespace: 152 bytes NET: Registered protocol family 16 usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb NET: Registered protocol family 2 IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 1024 (order: 1, 8192 bytes) TCP bind hash table entries: 1024 (order: 0, 4096 bytes) TCP: Hash tables configured (established 1024 bind 1024) TCP reno registered checking if image is initramfs...it isn't (bad gzip magic numbers); looks like an initrd Freeing initrd memory: 3072K NetWinder Floating Point Emulator V0.97 (double precision) io scheduler noop registered io scheduler anticipatory registered (default) at91_spi: Baud rate set to 5990400 AT91 SPI driver loaded atmel_usart.0: ttyS0 at MMIO 0xfefff200 (irq = 1) is a ATMEL_SERIAL atmel_usart.1: ttyS1 at MMIO 0xfffc4000 (irq = 7) is a ATMEL_SERIAL brd: module loaded at91_ether: Your bootloader did not configure a MAC address. eth0: Link down. eth0: AT91 ethernet at 0xfefbc000 int=24 10-HalfDuplex (00:00:00:00:00:00) eth0: Realtek RTL8201(  L
PHYphysmap platform flash device: 00200000 at 10000000 physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank NOR chip too large to fit in mapping. Attempting to cope... Amd/Fujitsu Extended Query Table at 0x0040 number of CFI chips: 1 cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness. Reducing visibility of 8192KiB chip to 2048KiB RedBoot partition parsing not available at91_cf: irqs det #64, io #0 usbmon: debugfs is not available at91_ohci at91_ohci: AT91 OHCI at91_ohci at91_ohci: new USB bus registered, assigned bus number 1 at91_ohci at91_ohci: irq 23, io mem 0x00300000 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 2 ports detected usb usb1: New USB device found, idVendor=1d6b, idProduct=0001 usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb1: Product: AT91 OHCI usb usb1: Manufacturer: Linux 2.6.25 ohci_hcd usb usb1: SerialNumber: at91 udc: at91_udc version 3 May 2006 mice: PS/2 mouse device common for all mice at91_rtc at91_rtc: rtc core: registered at91_rtc as rtc0 AT91 Real Time Clock driver. i2c /dev entries driver i2c-gpio i2c-gpio: using pins 57 (SDA) and 58 (SCL) AT91 Watchdog Timer enabled (5 seconds, nowayout) TCP cubic registered NET: Registered protocol family 1 NET: Registered protocol family 17 at91_rtc at91_rtc: setting system clock to 1998-01-01 00:08:16 UTC (883613296) RAMDISK: Couldn't find valid RAM disk image starting at 0. List of all partitions: 0100 8192 ram0 (driver?) 0101 8192 ram1 (driver?) 0102 8192 ram2 (driver?) 0103 8192 ram3 (driver?) 0104 8192 ram4 (driver?) 0105 8192 ram5 (driver?) 0106 8192 ram6 (driver?) 0107 8192 ram7 (driver?) 0108 8192 ram8 (driver?) 0109 8192 ram9 (driver?) 010a 8192 ram10 (driver?) 010b 8192 ram11 (driver?) 010c 8192 ram12 (driver?) 010d 8192 ram13 (driver?) 010e 8192 ram14 (driver?) 010f 8192 ram15 (driver?) 1f00 2048 mtdblock0 (driver?) No filesystem could mount root, tried: ext2 cramfs Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0) |
