Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
omap_uart.0: ttyO0 at MMIO 0x48020000 (irq = 72) is a OMAP UART0
omap_uart.1: ttyO1 at MMIO 0x48022000 (irq = 73) is a OMAP UART1
omap_uart.2: ttyO2 at MMIO 0x48024000 (irq = 74) is a OMAP UART2
console [ttyO2] enabled
下面是板子启动后，用dmesg | grep tty*打印的信息
Kernel command line: console=ttyO2,115200n8 noinitrd ip=dhcp mem=256M rootdelay=5 root=/dev/nfs nfsroot=192.168.1.80:/home/akaedu/dm8168/DVRRDK_03.50.00.05/target/rfs_816x, rw ip=192.168.1.107:192.168.1.109:192.168.1.254:255.255.0.0::eth0:off vram=20M notifyk.vpssm3_sva=0xBEE00000 stdin=serial ddr_mem=1024M
ti81xx_pcie: Setting up Host Controller...
omap_uart.0: ttyO0 at MMIO 0x48020000 (irq = 72) is a OMAP UART0
omap_uart.1: ttyO1 at MMIO 0x48022000 (irq = 73) is a OMAP UART1
omap_uart.2: ttyO2 at MMIO 0x48024000 (irq = 74) is a OMAP UART2
console [ttyO2] enabled
omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
davinci_mdio davinci_mdio.0: resetting idled controller
net eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:01, id=143bca2)
请专家帮忙解决下这个问题。
