AM3352 CPSW驱动 网卡正常但ping不通

arp信息补充如下

root@am335x-evm:~# arp -n
? (192.168.10.1) at 00:0f:e2:54:01:ff [ether] on eth0
? (192.168.10.98) at <incomplete> on eth0
? (192.168.10.86) at 00:1d:09:04:a1:19 [ether] on eth0
? (192.168.10.102) at 3c:97:0e:ae:4d:1d [ether] on eth0

TI的技术大神呢？能帮忙看看么？我司单板驱动往dma写数据时，mdio寄存器值如下：

ctrl=0x410000ff
alive=0xff000ff
link=0xfc000e6
linkintraw=0x1
userintmaskset=0x0
userintraw=0x1
linkintmasked=0x1
userintmaskset=0x0
userintmaskclr=0x0
user[0].access=0x208701e1
user[0].physel=0x47

phy 寄存器值如下：

BMCR =0x3100
MII_BMSR =0x786d
MII_PHYSID1 =0x2000
MII_PHYSID2 =0x5c90
MII_ADVERTISE =0x1e1
MII_LPA =0xc9e1
MII_EXPANSION =0xf
MII_ANPTR =0x2801
MII_PHY_STS =0x4015
MII_PHYADDR =0x8027

请问有在U-boot下试过网络基本功能么？MDIO访问PHY芯片都是正常的?

u-boot下网卡收发是正常的，我是从网络启动的，u-boot从网口加载kernel然后启动系统。

u-boot下mido和phy寄存器如下：

ctrl=0x410000ff
alive=0xff000ff
link=0xfc000e6
linkintraw=0x0
userintmaskset=0x0
userintraw=0x1
linkintmasked=0x0
userintmaskset=0x0
userintmaskclr=0x0
user[0].access=0x22074615
user[0].physel=0x0
nBMCR =0x3100
nMII_BMSR =0x786d
nMII_PHYSID1 =0x2000
nMII_PHYSID2 =0x5c90
nMII_ADVERTISE =0x1e1
nMII_LPA =0xc9e1
nMII_EXPANSION =0xd
nMII_ANPTR =0x2801
nMII_PHY_STS =0x4615
nMII_PHYADDR =0x8027

Kernel下mdio和phy寄存器如下：

ctrl=0x410000ff
alive=0xff000ff
link=0xfc000e6
linkintraw=0x0
userintmaskset=0x0
userintraw=0x1
linkintmasked=0x0
userintmaskset=0x0
userintmaskclr=0x0
user[0].access=0x208701e1
user[0].physel=0x0
nBMCR =0x3100
nMII_BMSR =0x786d
nMII_PHYSID1 =0x2000
nMII_PHYSID2 =0x5c90
nMII_ADVERTISE =0x1e1
nMII_LPA =0xc9e1
nMII_EXPANSION =0xf
nMII_ANPTR =0x2801
nMII_PHY_STS =0x4015
nMII_PHYADDR =0x8027

是否和电源管理有关？我们的单板是固定电压，没有电源管理芯片。

如果U-boot下网络工作正常，硬件出问题的可能性不大。

kernel下有量那些信号线有数据输出和输入么？

另外检查下kernel下是否关掉了防火墙。

用示波器测量TX数据线没有信号输出，u-boot的TX数据线有信号，这个和防火墙有关？

防火墙没有编译进内核，但是相同的内核，可以在TI官方的Demo板跑起来，而且网口收发正常。

内核开了防火墙，其结果一样，user[0].access=0x208701e1这个寄存器的值在u-boot和kernel下不一样，看手册貌似和电源管理有关

如果TX信号输出都没有，建议检查下kernel下的pinmux设置。

完整的dts文件在1楼的附件中，pinmux设置如下，网卡为MII模式 gmii_sel寄存器已设置为0，这个引脚设置和u-boot一样，只是我们的没有电源管理，所以sleep的没有设置。另外帮忙检查下dts文件中双网卡设置，我们的单板am3352接DP83848J的PHY芯片(PHYID=7)和和IP175D(PHYID=4)交换芯片。谢了。

cpsw_default: cpsw_default {
pinctrl-single,pins = <
/* Slave 1 */
0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txen.mii1_txen */
0x118 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mii1_rxdv.mii1_rxdv */
0x11c (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd3.mii1_txd3 */
0x120 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd2.mii1_txd2 */
0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd1.mii1_txd1 */
0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd0.mii1_txd0 */
0x12c (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txclk.mii1_txclk */
0x130 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mii1_rxclk.mii1_rxclk */
0x134 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mii1_rxd3.mii1_rxd3 */
0x138 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mii1_rxd2.mii1_rxd2 */
0x13c (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mii1_rxd1.mii1_rxd1 */
0x140 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mii1_rxd0.mii1_rxd0 */

/* Slave 2 */
0x40 (PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* gpmc_a0.mii2_txen */
0x44 (PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a1.mii2_rxdv */
0x48 (PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* gpmc_a2.mii2_td3 */
0x4c (PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* gpmc_a3.mii2_td2 */
0x50 (PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* gpmc_a4.mii2_td1 */
0x54 (PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* gpmc_a5.mii2_td0 */
0x58 (PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* gpmc_a6.mii2_tclk */
0x5c (PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a7.mii2_rclk */
0x60 (PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a8.mii2_rd3 */
0x64 (PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a9.mii2_rd2 */
0x68 (PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a10.mii2_rd1 */
0x6c (PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a11.mii2_rd0 */
>;
};

cpsw_sleep: cpsw_sleep {
pinctrl-single,pins = <
/* Slave 1 reset value */
0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x11c (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x120 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x12c (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x130 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x134 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x138 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7)

/* Slave 2 reset value*/
0x40 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x44 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x48 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x4c (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x50 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x54 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x58 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x5c (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x60 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x64 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x68 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x6c (PIN_INPUT_PULLDOWN | MUX_MODE7)
>;
};

系统启动打印的phy信息如下（IP175D的驱动还没加载）：

[ 4.145526] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver unknown
[ 4.153587] davinci_mdio 4a101000.mdio: phy[1]: device 4a101000.mdio:01, driver unknown
[ 4.161628] davinci_mdio 4a101000.mdio: phy[2]: device 4a101000.mdio:02, driver unknown
[ 4.169682] davinci_mdio 4a101000.mdio: phy[3]: device 4a101000.mdio:03, driver unknown
[ 4.177736] davinci_mdio 4a101000.mdio: phy[4]: device 4a101000.mdio:04, driver unknown
[ 4.185788] davinci_mdio 4a101000.mdio: phy[5]: device 4a101000.mdio:05, driver unknown
[ 4.193841] davinci_mdio 4a101000.mdio: phy[6]: device 4a101000.mdio:06, driver unknown
[ 4.201882] davinci_mdio 4a101000.mdio: phy[7]: device 4a101000.mdio:07, driver NatSemi DP83848J
[ 4.210719] davinci_mdio 4a101000.mdio: phy[20]: device 4a101000.mdio:14, driver unknown
[ 4.218859] davinci_mdio 4a101000.mdio: phy[21]: device 4a101000.mdio:15, driver unknown
[ 4.226999] davinci_mdio 4a101000.mdio: phy[22]: device 4a101000.mdio:16, driver unknown
[ 4.235138] davinci_mdio 4a101000.mdio: phy[23]: device 4a101000.mdio:17, driver unknown
[ 4.243278] davinci_mdio 4a101000.mdio: phy[24]: device 4a101000.mdio:18, driver unknown
[ 4.251406] davinci_mdio 4a101000.mdio: phy[25]: device 4a101000.mdio:19, driver unknown
[ 4.259545] davinci_mdio 4a101000.mdio: phy[26]: device 4a101000.mdio:1a, driver unknown
[ 4.267684] davinci_mdio 4a101000.mdio: phy[27]: device 4a101000.mdio:1b, driver unknown

我抽时间帮您看一下，您自己也再仔细检查下。

我仔细对照了AM3352的datasheet，引脚设置并没有什么问题。在设置pinmux的地方添加打印信息代码，Kernel启动时打印信息如下：

bootcomd:console=ttyO0,115200n8 root=/dev/nfs nfsroot=192.168.10.98:/export/rootfs,nolock rw bootenv=uEnv.txt
in boot_jump_linux addr=0x82000000 r2=0x8fff4000
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 3.14.43-g875c69b (root@ubuntu) (gcc version 4.7.3 20130226 (prerelease) (crosstool-NG linaro-1.13.1-4.7-2013.03-20130313 - Linaro GCC 2013.03) ) #187 Fri Dec 25 11:20:00 CST 2015
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI AM335x EVM-SK
[ 0.000000] cma: CMA: reserved 24 MiB at ae000000
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] On node 0 totalpages: 261888
[ 0.000000] free_area_init_node: node 0, pgdat c200ba70, node_mem_map ed7ee000
[ 0.000000] Normal zone: 1520 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 194560 pages, LIFO batch:31
[ 0.000000] HighMem zone: 528 pages used for memmap
[ 0.000000] HighMem zone: 67328 pages, LIFO batch:15
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] AM335X ES2.1 (neon )
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260368
[ 0.000000] Kernel command line: console=ttyO0,115200n8 root=/dev/nfs nfsroot=192.168.10.98:/export/rootfs,nolock rw bootenv=uEnv.txt
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 980492K/1047552K available (5619K kernel code, 459K rwdata, 2280K rodata, 24504K init, 404K bss, 67060K reserved, 269312K highmem)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] vmalloc : 0xf0000000 - 0xff000000 ( 240 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xef800000 ( 760 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0xc0008000 - 0xc07befc4 (7900 kB)
[ 0.000000] .init : 0xc07bf000 - 0xc1fad21c (24505 kB)
[ 0.000000] .data : 0xc1fae000 - 0xc2020fd0 ( 460 kB)
[ 0.000000] .bss : 0xc2020fd0 - 0xc20862b8 ( 405 kB)
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
[ 0.000000] Total of 128 interrupts on 1 active controller
[ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[ 0.000017] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956969942ns
[ 0.000042] OMAP clocksource: timer1 at 24000000 Hz
[ 0.000233] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
[ 0.000242] This ensures that you still see kernel messages. Please
[ 0.000249] update your kernel commandline.
[ 0.000279] Calibrating delay loop... 718.02 BogoMIPS (lpj=3590144)
[ 0.119158] pid_max: default: 32768 minimum: 301
[ 0.119302] Security Framework initialized
[ 0.119422] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.119436] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.128442] CPU: Testing write buffer coherency: ok
[ 0.128529] ftrace: allocating 21121 entries in 62 pages
[ 0.198852] Setting up static identity map for 0x805832e8 - 0x80583340
[ 0.208004] devtmpfs: initialized
[ 0.210174] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 0.218246] omap_hwmod: tptc0 using broken dt data from edma
[ 0.218343] omap_hwmod: tptc1 using broken dt data from edma
[ 0.218426] omap_hwmod: tptc2 using broken dt data from edma
[ 0.222968] omap_hwmod: debugss: _wait_target_disable failed
[ 0.288027] pinctrl core: initialized pinctrl subsystem
[ 0.289330] reg-dummy reg-dummy: no of_node; not parsing pinctrl DT
[ 0.289682] regulator-dummy: no parameters
[ 0.292456] NET: Registered protocol family 16
[ 0.294763] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.296462] >>>> drivers/spi/spi.c/spi_init >>>>
[ 0.304232] syscon 44e10000.control_module: regmap [mem 0x44e10000-0x44e107fb] registered
[ 0.305900] platform 49000000.edma: alias fck already exists
[ 0.305929] platform 49000000.edma: alias fck already exists
[ 0.305945] platform 49000000.edma: alias fck already exists
[ 0.306988] gpiochip_add: registered GPIOs 0 to 31 on device: gpio
[ 0.307315] OMAP GPIO hardware version 0.1
[ 0.308404] gpiochip_add: registered GPIOs 32 to 63 on device: gpio
[ 0.309716] gpiochip_add: registered GPIOs 64 to 95 on device: gpio
[ 0.310942] gpiochip_add: registered GPIOs 96 to 127 on device: gpio
[ 0.316436] platform 44e3e000.rtc: Cannot lookup hwmod 'rtc'
[ 0.323019] No ATAGs?
[ 0.323042] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.347468] bio: create slab <bio-0> at 0
[ 0.349197] edma-dma-engine edma-dma-engine.0: no of_node; not parsing pinctrl DT
[ 0.364017] edma-dma-engine edma-dma-engine.0: TI EDMA DMA engine driver
[ 0.365241] vgaarb: loaded
[ 0.366600] SCSI subsystem initialized
[ 0.367188] libata version 3.00 loaded.
[ 0.368252] usbcore: registered new interface driver usbfs
[ 0.368471] usbcore: registered new interface driver hub
[ 0.368716] usbcore: registered new device driver usb
[ 0.369764] omap_i2c 44e0b000.i2c: could not find pctldev for node /pinmux@44e10800/pinmux_i2c0_pins, deferring probe
[ 0.369800] platform 44e0b000.i2c: Driver omap_i2c requests probe deferral
[ 0.370238] pps_core: LinuxPPS API ver. 1 registered
[ 0.370250] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.370408] PTP clock support registered
[ 0.371733] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[ 0.373742] Switched to clocksource timer1
[ 0.423963] NET: Registered protocol family 2
[ 0.424970] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.425072] TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.425164] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.425277] TCP: reno registered
[ 0.425291] UDP hash table entries: 512 (order: 1, 8192 bytes)
[ 0.425322] UDP-Lite hash table entries: 512 (order: 1, 8192 bytes)
[ 0.425527] NET: Registered protocol family 1
[ 0.425927] RPC: Registered named UNIX socket transport module.
[ 0.425942] RPC: Registered udp transport module.
[ 0.425949] RPC: Registered tcp transport module.
[ 0.425956] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.425975] PCI: CLS 0 bytes, default 64
[ 2.540869] hw perfevents: enabled with ARMv7 Cortex-A8 PMU driver, 5 counters available
[ 2.544083] alarmtimer alarmtimer: no of_node; not parsing pinctrl DT
[ 2.544681] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 2.699904] bounce pool size: 64 pages
[ 2.700205] VFS: Disk quotas dquot_6.5.2
[ 2.700275] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 2.700931] NFS: Registering the id_resolver key type
[ 2.701037] Key type id_resolver registered
[ 2.701047] Key type id_legacy registered
[ 2.701095] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
[ 2.701296] msgmni has been set to 1437
[ 2.703069] NET: Registered protocol family 38
[ 2.703113] io scheduler noop registered
[ 2.703122] io scheduler deadline registered
[ 2.703153] io scheduler cfq registered (default)
[ 2.704877] pinctrl-single 44e10800.pinmux: allocating 142 pins
[ 2.705078] pinctrl-single 44e10800.pinmux: try to register 142 pins ...
[ 2.705205] pinctrl core: add 1 pinmux maps
[ 2.705227] pinctrl core: add 1 pinmux maps
[ 2.705242] pinctrl core: add 1 pinmux maps
[ 2.705271] pinctrl-single 44e10800.pinmux: found group selector 0 for gpio_keys_s0
[ 2.705289] pinctrl-single 44e10800.pinmux: found group selector 1 for pinmux_clkout2_pin
[ 2.705306] pinctrl-single 44e10800.pinmux: found group selector 2 for ddr3_vtt_toggle
[ 2.705318] pinctrl core: pinmux_enable_setting devname=44e10800.pinmux
[ 2.705332] pinmux core: >>> pinmux_enable_setting devname=44e10894.0 >>>
[ 2.705340] pinmux core: >>> pinmux_enable_setting devname=44e10890.0 >>>
[ 2.705347] pinmux core: >>> pinmux_enable_setting devname=44e10870.0 >>>
[ 2.705354] pinmux core: >>> pinmux_enable_setting devname=44e1089c.0 >>>
[ 2.705368] pinctrl-single 44e10800.pinmux: enabling gpio_keys_s0 function0
[ 2.705379] pinctrl core: pinmux_enable_setting devname=44e10800.pinmux
[ 2.705388] pinmux core: >>> pinmux_enable_setting devname=44e109b4.0 >>>
[ 2.705399] pinctrl-single 44e10800.pinmux: enabling pinmux_clkout2_pin function1
[ 2.705407] pinctrl core: pinmux_enable_setting devname=44e10800.pinmux
[ 2.705415] pinmux core: >>> pinmux_enable_setting devname=44e10964.0 >>>
[ 2.705427] pinctrl-single 44e10800.pinmux: enabling ddr3_vtt_toggle function2
[ 2.705440] pinctrl-single 44e10800.pinmux: failed to lookup the sleep state
[ 2.705529] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
[ 2.707600] pinctrl core: add 1 pinmux maps
[ 2.707645] pinctrl core: add 1 pinmux maps
[ 2.707677] pinctrl-single 44e10800.pinmux: found group selector 3 for backlight_pins
[ 2.707695] pinctrl-single 44e10800.pinmux: found group selector 4 for ecap2_pins_sleep
[ 2.707706] pinctrl core: pinmux_enable_setting devname=48304100.ecap
[ 2.707718] pinmux core: >>> pinmux_enable_setting devname=44e1099c.0 >>>
[ 2.707732] pinctrl-single 44e10800.pinmux: enabling backlight_pins function3
[ 2.709801] Serial: 8250/16550 driver, 10 ports, IRQ sharing enabled
[ 2.713993] serial8250 serial8250: no of_node; not parsing pinctrl DT
[ 2.714646] pinctrl core: add 1 pinmux maps
[ 2.714688] pinctrl-single 44e10800.pinmux: found group selector 5 for pinmux_uart0_pins
[ 2.714700] pinctrl core: pinmux_enable_setting devname=44e09000.serial
[ 2.714715] pinmux core: >>> pinmux_enable_setting devname=44e10970.0 >>>
[ 2.714722] pinmux core: >>> pinmux_enable_setting devname=44e10974.0 >>>
[ 2.714736] pinctrl-single 44e10800.pinmux: enabling pinmux_uart0_pins function5
[ 2.714842] of_get_named_gpiod_flags: can't parse gpios property of node '/ocp/serial@44e09000[0]'
[ 2.715364] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 88, base_baud = 3000000) is a 8250
[ 3.663163] console [ttyS0] enabled
[ 3.668836] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20
[ 3.688798] brd: module loaded
[ 3.698639] loop: module loaded
[ 3.702472] (hci_tty): inside hci_tty_init
[ 3.707194] (hci_tty): allocated 252, 0
[ 3.713233] mtdoops: mtd device (mtddev=name/number) must be supplied
[ 3.720681] >>>>> spidev_init >>>> N_SPI_MINORS=32
[ 3.725542] >>>>> create spidev >>>>
[ 3.729289] >>>>> reg spidev_spi_driver >>>>
[ 3.737363] usbcore: registered new interface driver asix
[ 3.742998] usbcore: registered new interface driver ax88179_178a
[ 3.749351] usbcore: registered new interface driver cdc_ether
[ 3.755459] usbcore: registered new interface driver smsc95xx
[ 3.761408] usbcore: registered new interface driver net1080
[ 3.767296] usbcore: registered new interface driver cdc_subset
[ 3.773410] usbcore: registered new interface driver zaurus
[ 3.779290] usbcore: registered new interface driver cdc_ncm
[ 3.785624] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.792201] ehci-pci: EHCI PCI platform driver
[ 3.796925] ehci-omap: OMAP-EHCI Host Controller driver
[ 3.802688] usbcore: registered new interface driver cdc_wdm
[ 3.808631] usbcore: registered new interface driver usb-storage
[ 3.815925] mousedev: PS/2 mouse device common for all mice
[ 3.822459] i2c /dev entries driver
[ 3.826962] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
[ 3.834614] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
[ 3.842170] usbcore: registered new interface driver usbhid
[ 3.847833] usbhid: USB HID core driver
[ 3.851941] platform 44d00000.wkup_m3: Driver wkup_m3 requests probe deferral
[ 3.860387] oprofile-perf oprofile-perf.0: no of_node; not parsing pinctrl DT
[ 3.867663] oprofile: using arm/armv7
[ 3.871673] TCP: cubic registered
[ 3.875039] Initializing XFRM netlink socket
[ 3.879346] NET: Registered protocol family 17
[ 3.883877] NET: Registered protocol family 15
[ 3.888479] Key type dns_resolver registered
[ 3.893715] ThumbEE CPU extension supported.
[ 3.898097] Registering SWP/SWPB emulation handler
[ 3.904740] regulator-dummy: disabling
[ 3.908826] pinctrl core: add 1 pinmux maps
[ 3.913075] pinctrl-single 44e10800.pinmux: found group selector 6 for pinmux_i2c0_pins
[ 3.921175] pinctrl core: pinmux_enable_setting devname=44e0b000.i2c
[ 3.927579] pinmux core: >>> pinmux_enable_setting devname=44e10988.0 >>>
[ 3.934411] pinmux core: >>> pinmux_enable_setting devname=44e1098c.0 >>>
[ 3.941234] pinctrl-single 44e10800.pinmux: enabling pinmux_i2c0_pins function6
[ 3.963720] input_polldev: disagrees about version of symbol module_layout
[ 3.978577] snd_soc_tlv320aic3x: disagrees about version of symbol module_layout
[ 3.987766] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.993847] platform 44d00000.wkup_m3: Driver wkup_m3 requests probe deferral
[ 4.002108] pinctrl core: add 1 pinmux maps
[ 4.006409] pinctrl core: add 1 pinmux maps
[ 4.010647] pinctrl-single 44e10800.pinmux: found group selector 7 for cpsw_default
[ 4.018370] pinctrl-single 44e10800.pinmux: found group selector 8 for cpsw_sleep
[ 4.025903] pinctrl core: pinmux_enable_setting devname=4a100000.ethernet
[ 4.032737] pinmux core: >>> pinmux_enable_setting devname=44e10914.0 >>>
[ 4.039574] pinmux core: >>> pinmux_enable_setting devname=44e10918.0 >>>
[ 4.046401] pinmux core: >>> pinmux_enable_setting devname=44e1091c.0 >>>
[ 4.053216] pinmux core: >>> pinmux_enable_setting devname=44e10920.0 >>>
[ 4.060042] pinmux core: >>> pinmux_enable_setting devname=44e10924.0 >>>
[ 4.066870] pinmux core: >>> pinmux_enable_setting devname=44e10928.0 >>>
[ 4.073685] pinmux core: >>> pinmux_enable_setting devname=44e1092c.0 >>>
[ 4.080518] pinmux core: >>> pinmux_enable_setting devname=44e10930.0 >>>
[ 4.087346] pinmux core: >>> pinmux_enable_setting devname=44e10934.0 >>>
[ 4.094173] pinmux core: >>> pinmux_enable_setting devname=44e10938.0 >>>
[ 4.100988] pinmux core: >>> pinmux_enable_setting devname=44e1093c.0 >>>
[ 4.107815] pinmux core: >>> pinmux_enable_setting devname=44e10940.0 >>>
[ 4.114642] pinmux core: >>> pinmux_enable_setting devname=44e10840.0 >>>
[ 4.121457] pinmux core: >>> pinmux_enable_setting devname=44e10844.0 >>>
[ 4.128282] pinmux core: >>> pinmux_enable_setting devname=44e10848.0 >>>
[ 4.135108] pinmux core: >>> pinmux_enable_setting devname=44e1084c.0 >>>
[ 4.141923] pinmux core: >>> pinmux_enable_setting devname=44e10850.0 >>>
[ 4.148749] pinmux core: >>> pinmux_enable_setting devname=44e10854.0 >>>
[ 4.155576] pinmux core: >>> pinmux_enable_setting devname=44e10858.0 >>>
[ 4.162391] pinmux core: >>> pinmux_enable_setting devname=44e1085c.0 >>>
[ 4.169218] pinmux core: >>> pinmux_enable_setting devname=44e10860.0 >>>
[ 4.176046] pinmux core: >>> pinmux_enable_setting devname=44e10864.0 >>>
[ 4.182861] pinmux core: >>> pinmux_enable_setting devname=44e10868.0 >>>
[ 4.189686] pinmux core: >>> pinmux_enable_setting devname=44e1086c.0 >>>
[ 4.196521] pinctrl-single 44e10800.pinmux: enabling cpsw_default function7
[ 4.204694] pinctrl core: add 1 pinmux maps
[ 4.208924] pinctrl core: add 1 pinmux maps
[ 4.213156] pinctrl-single 44e10800.pinmux: found group selector 9 for davinci_mdio_default
[ 4.221615] pinctrl-single 44e10800.pinmux: found group selector 10 for davinci_mdio_sleep
[ 4.229932] pinctrl core: pinmux_enable_setting devname=4a101000.mdio
[ 4.236415] pinmux core: >>> pinmux_enable_setting devname=44e10948.0 >>>
[ 4.243230] pinmux core: >>> pinmux_enable_setting devname=44e1094c.0 >>>
[ 4.250063] pinctrl-single 44e10800.pinmux: enabling davinci_mdio_default function9
[ 4.272538]
[ 4.272538] >>>>>> __davinci_mdio_reset mdio_out_khz=351,mdio_in=90000000
[ 4.323782] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
[ 4.329907] davinci_mdio 4a101000.mdio: detected phy mask f00fff00
[ 4.395296] NatSemi DP83848J 4a101000.mdio:07: no of_node; not parsing pinctrl DT
[ 4.403994] platform 44d00000.wkup_m3: Driver wkup_m3 requests probe deferral
[ 4.469381] libphy: 4a101000.mdio: probed
[ 4.473453] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver unknown
[ 4.481576] davinci_mdio 4a101000.mdio: phy[1]: device 4a101000.mdio:01, driver unknown
[ 4.489636] davinci_mdio 4a101000.mdio: phy[2]: device 4a101000.mdio:02, driver unknown
[ 4.497690] davinci_mdio 4a101000.mdio: phy[3]: device 4a101000.mdio:03, driver unknown
[ 4.505743] davinci_mdio 4a101000.mdio: phy[4]: device 4a101000.mdio:04, driver unknown
[ 4.513797] davinci_mdio 4a101000.mdio: phy[5]: device 4a101000.mdio:05, driver unknown
[ 4.521838] davinci_mdio 4a101000.mdio: phy[6]: device 4a101000.mdio:06, driver unknown
[ 4.529891] davinci_mdio 4a101000.mdio: phy[7]: device 4a101000.mdio:07, driver NatSemi DP83848J
[ 4.538731] davinci_mdio 4a101000.mdio: phy[20]: device 4a101000.mdio:14, driver unknown
[ 4.546872] davinci_mdio 4a101000.mdio: phy[21]: device 4a101000.mdio:15, driver unknown
[ 4.555011] davinci_mdio 4a101000.mdio: phy[22]: device 4a101000.mdio:16, driver unknown
[ 4.563140] davinci_mdio 4a101000.mdio: phy[23]: device 4a101000.mdio:17, driver unknown
[ 4.571279] davinci_mdio 4a101000.mdio: phy[24]: device 4a101000.mdio:18, driver unknown
[ 4.579420] davinci_mdio 4a101000.mdio: phy[25]: device 4a101000.mdio:19, driver unknown
[ 4.587560] davinci_mdio 4a101000.mdio: phy[26]: device 4a101000.mdio:1a, driver unknown
[ 4.595699] davinci_mdio 4a101000.mdio: phy[27]: device 4a101000.mdio:1b, driver unknown

在cpsw初始化和发送数据时，打印了详细的信息，数据拷贝到dma后，写了相关寄存器，然后允许当前网卡的中断，下一步应该就是emac控制器从dma中发送数据到phy，发送完成后再次中断。发送的phy也是正确的，中断允许也执行了，就是很奇怪数据没发送出去。

INIT: Entering runlevel: 3
Configuring network interfaces... [ 10.120341] 
[ 10.120341] >>>> cpsw_ndo_open emacport=0 hostport=0,default_vlan=0,slaves=2,openslaves=0,activeslaves=0
[ 10.131530] net eth0: initializing cpsw version 1.12 (0)
[ 10.136889] >>>> cpsw_init_host_port >>>>
[ 10.140916] >>>>>>>>> cpsw_ale_start >>>>>>>>>>
[ 10.145500] >>> cpsw_slave_open >>> slave info:port_vlan=1,open_state=0,dual_emac_res_vlan=1,phyid=4a101000.mdio:07
[ 10.155997] >>> cpsw_slave_open slave_port=1 set slave mac=7c:66:9d:52:30:3c>>> 
[ 10.163425] >>> cpsw_add_dual_emac_def_ale_entries >>>> version=0x19010c
[ 10.171277] >>> cpsw_ale_add_vlan vid=1,port=3 ,index=-2 >>>
[ 10.179195] begin to connect to phy,phyaddr=4a101000.mdio:07,phy_if=1 dual_emac_res_vlan=1
[ 10.187504] libphy: >>>> phy_connect >>>>
[ 10.266490] libphy: phy_read result =0x3100
[ 10.270694] libphy: phy_read result =0x7849
[ 10.274891] libphy: phy_read result =0x2000
[ 10.279107] libphy: phy_read result =0x5c90
[ 10.283306] libphy: phy_read result =0x1e1
[ 10.287437] net eth0: phy found : id is : 0x20005c90
[ 10.292420] phy found : id is : 0x20005c90
[ 10.297717] >>> cpsw_ale_add_vlan vid=0,port=7 ,index=-2 >>>
[ 10.304396] slave[emac_port=1].open_stat=0
[ 10.308571] slave[emac_port=0].open_stat=1
done.
Starting system message bus: dbus.
Starting telnet daemon.
Starting rpcbind daemon...rpcbind: cannot create socket for udp6
rpcbind: cannot create socket for tcp6
done.
creating NFS state directory: done
starting statd: done
hwclock: can't open '/dev/misc/rtc': No such file or directory
Starting syslogd/klogd: done
Starting thttpd.
Enabling thermal zones...
/etc/rc3.d/S98thermal-zone-init: line 7: /sys/class/thermal/thermal_zone*/mode: No such file or directory
Stopping Bootlog daemon: bootlogd.

_____ _____ _ _ 
| _ |___ ___ ___ ___ | _ |___ ___ |_|___ ___| |_ 
| | _| .'| . | . | | __| _| . | | | -_| _| _|
|__|__|_| |__,|_ |___| |__| |_| |___|_| |___|___|_| 
|___| |___|

Arago Project http://arago-project.org am335x-evm /dev/ttyO0

Arago 2015.05 am335x-evm /dev/ttyO0

am335x-evm login: [ 11.265562] libphy: genphy_config_aneg ctl=0x3100 ,ctl & BMCR_ANENABLE=0x1000,ctl & BMCR_ISOLATE=0x0
[ 11.274759] libphy: genphy_config_aneg call genphy_restart_aneg result=0x0
[ 11.281787] libphy: genphy_restart_aneg ,ctl=0x3100
[ 11.286700] libphy: genphy_restart_aneg , write ctl=0x3300 to MII_BMCR
[ 13.285834] libphy: 4a101000.mdio:07 - Link is Up - 100/Full
[ 13.292821] libphy: phy_read nBMCR =0x3100
[ 13.296978] libphy: phy_read nMII_BMSR =0x786d
[ 13.301440] libphy: phy_read nMII_PHYSID1 =0x2000
[ 13.306175] libphy: phy_read nMII_PHYSID2 =0x5c90
[ 13.310897] libphy: phy_read nMII_ADVERTISE =0x1e1
[ 13.315718] libphy: phy_read nMII_LPA =0xc9e1
[ 13.320091] libphy: phy_read nMII_EXPANSION =0xf
[ 13.324724] libphy: phy_read nMII_ANPTR =0x2801
[ 13.329282] libphy: phy_read nMII_PHY_STS =0x4015
[ 13.334003] libphy: phy_read nMII_PHYADDR =0x8027
[ 17.452217] 
[ 17.452217] dev_hard_start_xmit 7c-66-9d-52-30-3c 192.168.10.106 ----> 3c-97-0e-ae-4d-1d 192.168.10.102
[ 17.463349] >>> cpsw_ndo_start_xmit >>> protocal=1544,emacport=0,hostport=0,macaddr=7c:66:9d:52:30:3c
[ 17.472703] slave 1:slavesnum=0,port_vlan=1,open_stat=1,phyname=4a101000.mdio:07,phyid=0x20005c90,dual_emac_res_vlan=1
[ 17.483325] 3c 97 0e ae 4d 1d 7c 66 9d 52 30 3c 08 06 00 01 08 00 06 04 00 02 7c 66 9d 52 30 3c c0 a8 0a 6a 3c 97 0e ae 4d 1d c0 a8 0a 66 
[ 17.495992] cpdma_chan_submit len=42,directed=1,chan_state=1,chan_num=0
[ 17.502723] before change state chan->state=1,chan->rxfree=0x0 
[ 17.508667] after change state chan->state=1,chan->rxfree=0x0 
[ 17.514524] 
[ 17.514524] davinci_mdio_read ctrl=0x41000059
[ 17.520382] davinci_mdio_read alive=0xff000ff
[ 17.524753] davinci_mdio_read link=0xfc000e6
[ 17.529039] davinci_mdio_read linkintraw=0x0
[ 17.533323] davinci_mdio_read userintmaskset=0x0
[ 17.537957] davinci_mdio_read userintraw=0x1
[ 17.542242] davinci_mdio_read linkintmasked=0x0
[ 17.546788] davinci_mdio_read userintmaskset=0x0
[ 17.551422] davinci_mdio_read userintmaskclr=0x0
[ 17.556057] davinci_mdio_read user[0].access=0x208701e1
[ 17.561300] davinci_mdio_read user[0].physel=0x0
[ 17.565938] cpdma_desc_alloc phyaddr=0x4a102000,hw_addr=0x4a102000,desc_size=32,mem_size=8192, num_desc=256,used_desc=64
[ 17.576951] cpdma_chan_submit head_enqueue=1, tail_enqueue= 0,pad_enqueue= 0,misqueued= 0,desc_alloc_fail = 0,pad_alloc_fail= 0,runt_receive_buff= 0,runt_transmit_buff= 1,empty_dequeue = 47,busy_dequeue = 0,good_dequeue = 0,requeue = 0,teardown_dequeue = 0,is_rx_chan=0
[ 17.600952] >>> cpsw_tx_interrupt >>> irq_tx_enabled = 255
[ 17.606459] call disable_irq_nosync 
[ 17.610048] call napi_schedule1 devname=eth0,emac_port=0 
[ 17.615470] cpsw_ndo_start_xmit ret=0
[ 17.619169] >>> cpsw_tx_poll >>> slave info:port_vlan=1,open_state=1,dual_emac_res_vlan=1,phyid=4a101000.mdio:07
[ 17.629391] >>> cpsw_tx_handler >>> devname=eth0
[ 17.634032] >>> cpsw_tx_poll >>> budget=64,num_tx=1 mac=7c:66:9d:52:30:3c
[ 17.640848] prim_cpsw->irq_tx_enabled =0,priv->irqs_table[2]=58
[ 17.646871] 3c 97 0e ae 4d 1d 7c 66 9d 52 30 3c 08 06 00 01 08 00 06 04 00 02 7c 66 9d 52 30 3c c0 a8 0a 6a 3c 97 0e ae 4d 1d c0 a8 0a 66 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 
[ 17.665023] poll 1 tx pkts

_____ _____ _ _ 
| _ |___ ___ ___ ___ | _ |___ ___ |_|___ ___| |_ 
| | _| .'| . | . | | __| _| . | | | -_| _| _|
|__|__|_| |__,|_ |___| |__| |_| |___|_| |___|___|_| 
|___| |___|

Arago Project http://arago-project.org am335x-evm /dev/ttyO0

Arago 2015.05 am335x-evm /dev/ttyO0

am335x-evm login: root
root@am335x-evm:~# ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full 
100baseT/Half 100baseT/Full 
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full 
100baseT/Half 100baseT/Full 
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Link partner advertised link modes: 10baseT/Half 10baseT/Full 
100baseT/Half 100baseT/Full 
Link partner advertised pause frame use: Transmit-only
Link partner advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 7
Transceiver: external
Auto-negotiation: on
Supports Wake-on: d
Wake-on: d
Current message level: 0x00000000 (0)

Link detected: yes
root@am335x-evm:~# cat /proc/interrupts 
CPU0 
28: 0 INTC 12 edma
30: 0 INTC 14 edma_error
56: 0 INTC 40 4a100000.ethernet
57: 322 INTC 41 4a100000.ethernet
58: 1 INTC 42 4a100000.ethernet
59: 0 INTC 43 4a100000.ethernet
84: 1186 INTC 68 gp_timer
86: 0 INTC 70 44e0b000.i2c
88: 247 INTC 72 serial
125: 0 INTC 109 53100000.sham
127: 0 INTC 111 48310000.rng

问题搁置一段时间，后来查出，结论如下：

红色部分配置错误：

0x12c (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txclk.mii1_txclk */

正确的应该为：

0x12c (PIN_INPUT_PULLDOWN | MUX_MODE0) /* mii1_txclk.mii1_txclk */

结帖。

dts配置是从rgmii拷贝过来的，忽略了这个细节，而这恰好是rgmii和mii的区别。