root@SongJia:/etc/config# cat /proc/cmdline
console=ttyS0,57600 rootfstype=squashfs,jffs2
root@SongJia:/etc/config# cat /proc/iomem
00000000-07ffffff : System RAM
00000000-0027409f : Kernel code
002740a0-00316adf : Kernel data
10000000-100000ff : /palmbus@10000000/sysc@0
10000120-1000012f : /palmbus@10000000/watchdog@120
10000200-100002ff : /palmbus@10000000/intc@200
10000300-100003ff : /palmbus@10000000/memc@300
10000600-100006ff : /palmbus@10000000/gpio@600
10000b00-10000bff : /palmbus@10000000/spi@b00
10000c00-10000c1f : serial
10100000-1010270f : /ethernet@10100000
101c0000-101c0fff : /ehci@101c0000
console=ttyS0,57600 rootfstype=squashfs,jffs2
root@SongJia:/etc/config# cat /proc/iomem
00000000-07ffffff : System RAM
00000000-0027409f : Kernel code
002740a0-00316adf : Kernel data
10000000-100000ff : /palmbus@10000000/sysc@0
10000120-1000012f : /palmbus@10000000/watchdog@120
10000200-100002ff : /palmbus@10000000/intc@200
10000300-100003ff : /palmbus@10000000/memc@300
10000600-100006ff : /palmbus@10000000/gpio@600
10000b00-10000bff : /palmbus@10000000/spi@b00
10000c00-10000c1f : serial
10100000-1010270f : /ethernet@10100000
101c0000-101c0fff : /ehci@101c0000
101c1000-101c1fff : /ohci@101c1000
可以通过/proc/ioports文件查看哪些端口被谁使用了
/proc/ioports