A20_can_BUS 使用

1，kernel_driver

/driver/net/sunxi_can/sun7i_can.c

a,  /driver/net/sunxi_can/Makefile

      #add by jiangdou
obj-$(CONFIG_CAN_SUN7I) += sun7i_can.o

b:   /driver/net/sunxi_can/Kconfig

 #add by jiangdou for sunxi_can

config CAN_SUN7I

        tristate "Sun7i CAN bus controller"

        default n

        help

        This is the Sun7i CAN BUS driver for android system by peter chen.

1:    /driver/net/can/Kconfig

#add by jiangdou for sunxi_can

source "drivers/net/can/sunxi_can/Kconfig"

2:  driver/net/can/Makefile

 #add by jiangdou for sunxi_can

obj-$(CONFIG_CAN_SUN7I) += sunxi_can/

B:  modify   sys_config.fex

[can_para]

can_used = 1

can_tx              = port:PH20<4><default><default><default>

can_rx              = port:PH21<4><default><default><default>

C:  test

 root@sunxi#  ifconfig can0 up

<3>can0: bit-timing not yet defined

can0: bit-timing not yet defined

SIOCSIFFLAGS: Invalid argument

root@sunxi#  ip link set can0 type can bitrate 125000 triple-sampling on       //first  run

root@sunxi#  ifconfig can0 up            
  //then run

root@sunxi#  ifconfig 

can0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
UP RUNNING NOARP MTU:16 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:10
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:58

eth0 Link encap:Ethernet HWaddr 02:c8:0b:41:f5:73
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:87 Base address:0x2000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:384 errors:0 dropped:0 overruns:0 frame:0
TX packets:384 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:25728 (25.1 KiB) TX bytes:25728 (25.1 KiB)

3,