OLIMEX A20-SOM: requires working uboot

bruce bushby

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Jun 27, 2014, 4:55:24 AM6/27/14

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Hello

I wanted to reach out to other users of A20-SOM and ask if they have tested their uboot ethernet? So far I have found it doesn't work.

I tried building uboot from both repos:

https://github.com/linux-sunxi/u-boot-sunxi

https://github.com/jwrdegoede/u-boot-sunxi

Using various board configs:

A20-OLinuXino_MICRO

Cubieboard2

and then I tried the uboot from an official image:

a20-SOM-debian34_79_video_accel_release_1.7z

Nothing works .....except for "Cubietruck", I am able to get the network working using an image built for "Cubietruck"

I think the issue somehow relates to RGMII as this is a difference I see when comparing A20-OLinuXino_MICRO and Cubietruck "dts" files.

Cubietruck uboot (running on A20-SOM) ethernet working:

U-Boot 2014.04 (Jun 24 2014 - 23:03:23) Allwinner Technology

CPU: Allwinner A20 (SUN7I)

Board: Cubietruck

I2C: ready

DRAM: 1 GiB

MMC: SUNXI SD/MMC: 0

In: serial

Out: serial

Err: serial

Net: dwmac.1c50000

Hit any key to stop autoboot: 0

sun7i# tftp 0x46000000 uImage

Speed: 100, full duplex

Using dwmac.1c50000 device

TFTP from server 192.100.1.10; our IP address is 192.100.1.19

Filename 'uImage'.

Load address: 0x46000000

Loading: #################################################################

#################################################################

################################################

3.7 MiB/s

done

Bytes transferred = 2607919 (27cb2f hex)

sun7i# tftp 0x49000000 sun7i-a20-cubietruck.dtb

Speed: 100, full duplex

Using dwmac.1c50000 device

TFTP from server 192.100.1.10; our IP address is 192.100.1.19

Filename 'sun7i-a20-cubietruck.dtb'.

Load address: 0x49000000

Loading: ##

2.9 MiB/s

done

Bytes transferred = 21639 (5487 hex)

sun7i#

Official A20-SOM uboot from (a20-SOM-debian34_79_video_accel_release_1.7z) :

U-Boot SPL 2014.04-10653-g3f5ff92 (May 12 2014 - 11:31:13)

Board: A20-OLinuXino_MICRO

DRAM: 1024 MiB

CPU: 960000000Hz, AXI/AHB/APB: 3/2/2

spl: not an uImage at 1600

U-Boot 2014.04-10653-g3f5ff92 (May 12 2014 - 11:31:13) Allwinner Technology

CPU: Allwinner A20 (SUN7I)

Board: A20-OLinuXino_MICRO

I2C: ready

DRAM: 1 GiB

MMC: SUNXI SD/MMC: 0

In: serial

Out: serial

Err: serial

Net: emac

Hit any key to stop autoboot: 0

sun7i# printenv

autoboot=run loadkernel && run setargs && true && bootm 0x48000000

baudrate=115200

boot_ram=saved_stdout=$stdout;setenv stdout nc;if iminfo 0x41000000; then true; setenv stdout $saved_stdout; source 0x41000000;else setenv stdout $saved_stdout;fi

bootcmd=if run loadbootenv; then echo Loaded environment from ${bootenv};env import -t ${scriptaddr} ${filesize};fi;if test -n "${uenvcmd}"; then echo Running uenvcmd ...;run uenvcmd;fi;if run loadbootscr; then ec;

bootdelay=2

bootenv=uEnv.txt

bootm_size=0x10000000

bootscr=boot.scr

console=ttyS0,115200

device=mmc

ethact=emac

ethaddr=12:34:56:78:99:aa

ipaddr=192.100.1.19

kernel=uImage

loadbootenv=fatload $device $partition $scriptaddr ${bootenv} || ext2load $device $partition $scriptaddr boot/${bootenv} || ext2load $device $partition $scriptaddr ${bootenv}

loadbootscr=fatload $device $partition $scriptaddr ${bootscr} || ext2load $device $partition $scriptaddr boot/${bootscr} ||ext2load $device $partition $scriptaddr ${bootscr}

loadkernel=if bootpath=/boot/ && ext2load $device $partition 0x43000000 ${bootpath}${script} && ext2load $device $partition 0x48000000 ${bootpath}${kernel};then true; elif bootpath=/ && fatload $device $partition i

loglevel=8

panicarg=panic=10

partition=0:1

script=script.bin

scriptaddr=0x44000000

setargs=if test -z \\"$root\\"; then if test \\"$bootpath\\" = "/boot/"; then root="/dev/mmcblk0p1 rootwait"; else root="/dev/mmcblk0p2 rootwait"; fi; fi; setenv bootargs console=${console} root=${root} loglevel=$}

stderr=serial

stdin=serial

stdout=serial

Environment size: 1932/131068 bytes

sun7i# ping 192.100.1.10

ENET Speed is 100 Mbps - FULL duplex connection

Using emac device

ping failed; host 192.100.1.10 is not alive

sun7i#

Henrik Nordström

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Jun 27, 2014, 5:25:33 AM6/27/14

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fre 2014-06-27 klockan 01:55 -0700 skrev bruce bushby:

> Using various board configs:
> A20-OLinuXino_MICRO
> Cubieboard2

These are both 100Mbps EMAC designs.

> Nothing works .....except for "Cubietruck", I am able to get the
> network working using an image built for "Cubietruck"

Cubietruck is 1Gbps GMAC design.

> I think the issue somehow relates to RGMII as this is a difference I
> see when comparing A20-OLinuXino_MICRO and Cubietruck "dts" files.

The difference is in which u-boot Ethernet driver is being used.

emac (100Mbps) or dwmac (1Gbps).

A20 have both in the hardware. But they differ slightly in how the PHY
is wired.

Regards
Henrik

左宝柱

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Jun 27, 2014, 5:32:31 AM6/27/14

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pcDuinov3 uboot (running on A20-SOM) ethernet else working.

U-Boot 2014.04-01537-g257ae94 (Jun 26 2014 - 11:12:14) Allwinner Technology

CPU: Allwinner A20 (SUN7I)

Board: Linksprite_pcDuino3

I2C: ready

DRAM: 1 GiB

MMC: SUNXI SD/MMC: 0

*** Warning - bad CRC, using default environment

In: serial

Out: serial

Err: serial

Net: dwmac.1c50000

Hit any key to stop autoboot: 0

reading uEnv.txt

322 bytes read in 16 ms (19.5 KiB/s)

Loaded environment from uEnv.txt

Running uenvcmd ...

Speed: 100, full duplex

BOOTP broadcast 1

DHCP client bound to address 192.168.1.119

Speed: 100, full duplex

Using dwmac.1c50000 device

TFTP from server 192.168.1.100; our IP address is 192.168.1.119

Filename 'arch/arm/boot/uImage'.

Load address: 0x46000000

Loading: #################################################################

#################################################################

#################################################

340.8 KiB/s

done

Bytes transferred = 8351104 (7f6d80 hex)

Speed: 100, full duplex

Using dwmac.1c50000 device

TFTP from server 192.168.1.100; our IP address is 192.168.1.119

Filename 'arch/arm/boot/dts/sun7i-a20-pcduino3.dtb'.

Load address: 0x49000000

Loading: ##

294.9 KiB/s

done

Bytes transferred = 21183 (52bf hex)

## Booting kernel from Legacy Image at 46000000 ...

Image Name: Linux-3.15.0-rc6-01550-g119918d-

Image Type: ARM Linux Kernel Image (uncompressed)

Data Size: 8351040 Bytes = 8 MiB

Load Address: 40008000

Entry Point: 40008000

Verifying Checksum ... OK

## Flattened Device Tree blob at 49000000

Booting using the fdt blob at 0x49000000

Loading Kernel Image ... OK

Using Device Tree in place at 49000000, end 490082be

Starting kernel ...

[ 0.000000] Booting Linux on physical CPU 0x0

Do you test ethernet other way?

Pillar

bruce bushby

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Jun 27, 2014, 8:23:15 AM6/27/14

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Hi Pillar

I was only testing from uboot, I used ping and tftp.

I can't thank you enough for your response, I'm going to try pcDuino3 uboot and uImage as soon as I get home and will post the results. I'm hoping your use of GMAC resolves my issue.

Bruce

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bruce bushby

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Jun 27, 2014, 2:53:05 PM6/27/14

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sadly the a20-som and pcduino3 are sufficiently different that the Linksprit_pcDuino3 uboot image doesn't work :(

U-Boot 2014.04 (Jun 27 2014 - 12:49:04) Allwinner Technology

CPU: Allwinner A20 (SUN7I)

Board: Linksprite_pcDuino3

I2C: ready

DRAM: 1 GiB

MMC: SUNXI SD/MMC: 0

In: serial

Out: serial

Err: serial

Net: dwmac.1c50000

Hit any key to stop autoboot: 0

sun7i#

sun7i# ping 192.100.1.10

ping failed; host 192.100.1.10 is not alive

sun7i#

bruce bushby

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Jun 28, 2014, 7:49:01 AM6/28/14

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Fixed.

U-Boot SPL 2014.04 (Jun 28 2014 - 12:19:24)

Board: A20-SOM

DRAM: 1024 MiB

CPU: 960000000Hz, AXI/AHB/APB: 3/2/2

spl: not an uImage at 1600

U-Boot 2014.04 (Jun 28 2014 - 12:19:24) Allwinner Technology

CPU: Allwinner A20 (SUN7I)

Board: A20-SOM

I2C: ready

DRAM: 1 GiB

MMC: SUNXI SD/MMC: 0

In: serial

Out: serial

Err: serial

Net: dwmac.1c50000

Hit any key to stop autoboot: 0

sun7i#

sun7i# ping 192.100.1.10

Speed: 100, full duplex

Using dwmac.1c50000 device

host 192.100.1.10 is alive

sun7i#

--- ./boards.cfg 2014-06-28 11:20:49.695132898 +0100

+++ ./boards.cfg 2014-06-28 11:23:27.311513187 +0100

@@ -383,6 +383,7 @@ Active arm armv7 sunxi

Active arm armv7 sunxi - sunxi A13_MID sun5i:A13_MID,SPL,CONS_INDEX=2 -

Active arm armv7 sunxi - sunxi A20-OLinuXino_MICRO sun7i:A20_OLINUXINO_M,CONS_INDEX=1,STATUSLED=226,SPL,SUNXI_EMAC -

Active arm armv7 sunxi - sunxi A20-OLinuXino_MICRO_FEL sun7i:A20_OLINUXINO_M,CONS_INDEX=1,STATUSLED=226,SPL_FEL,SUNXI_EMAC -

+Active arm armv7 sunxi - sunxi A20-SOM sun7i:A20_SOM,SPL,SUNXI_GMAC,RGMII,STATUSLED1=245,FAST_MBUS -

Active arm armv7 sunxi - sunxi Auxtek-T003 sun5i:AUXTEK_T003,SPL,AXP152_POWER,STATUSLED=34 -

Active arm armv7 sunxi - sunxi Auxtek-T004 sun5i:AUXTEK_T004,SPL,AXP152_POWER,STATUSLED=34 -

Active arm armv7 sunxi - sunxi ba10_tv_box sun4i:BA10_TV_BOX,SPL,SUNXI_EMAC -

--- ./board/sunxi/Makefile 2014-06-28 12:14:20.554482957 +0100

+++ ./board/sunxi/Makefile 2014-06-28 12:16:38.838088151 +0100

@@ -17,6 +17,7 @@ obj-$(CONFIG_A13_OLINUXINO) += dram_a13_

obj-$(CONFIG_A13_OLINUXINOM) += dram_a13_oli_micro.o

obj-$(CONFIG_A13_MID) += dram_a13_mid.o

obj-$(CONFIG_A20_OLINUXINO_M) += dram_sun7i_384_1024_iow16.o

+obj-$(CONFIG_A20_SOM) += dram_sun7i_384_1024_iow16.o

obj-$(CONFIG_AUXTEK_T003) += dram_auxtek_t003.o

# This is not a typo, uses the same mem settings as the a10s-olinuxino-m

obj-$(CONFIG_AUXTEK_T004) += dram_a10s_olinuxino_m.o

Henrik Nordström

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Jun 28, 2014, 9:00:42 AM6/28/14

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Thanks!

https://github.com/linux-sunxi/u-boot-sunxi/commit/299c37419e0b8c7270e145500894e49355afcdfb

Luc Verhaegen

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Jun 28, 2014, 9:23:43 AM6/28/14

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On Sat, Jun 28, 2014 at 03:00:34PM +0200, Henrik Nordström wrote:
> Thanks!
>
> https://github.com/linux-sunxi/u-boot-sunxi/commit/299c37419e0b8c7270e145500894e49355afcdfb

And nobody mentioned http://linux-sunxi.org/New_Device_howto

Amazing. Now we have no wiki page and no fex file. Great.

Luc Verhaegen.

bruce bushby

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Jun 28, 2014, 9:59:12 AM6/28/14

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I will add a page, still trying to build a kernel using the dts file I copied from a similar device. Can't promise I'll get it done this weekend though, work and family commitments etc

ditma...@gmail.com

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Jun 28, 2014, 1:03:06 PM6/28/14

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One important step of the device howto is
Step 3: Retrieve crucial information from the stock OS
Have you still the original os on your board? Is there an original fex available ?

Henrik Nordström

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Jun 28, 2014, 2:20:10 PM6/28/14

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What original OS?

A20-SOM do not have a flash memory, or pretty much anything besides A20
+ AXP + memory + SD slot. The rest is dependent on what you build around
it.

Regards
Henrik

bruce bushby

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Jun 28, 2014, 2:41:41 PM6/28/14

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I think the original image is still in the nand ...although I've never been able to interrupt the POST to get to a uboot prompt so not sure how I could dump the FEX file?

The A20-SOM appears to be the same as the A20-OLINUXINO-MICRO-4GB ....just the network issue in the uboot was getting in the way.

At last she boots mainline :))

U-Boot SPL 2014.04 (Jun 28 2014 - 12:19:24)

Board: A20-SOM

DRAM: 1024 MiB

CPU: 960000000Hz, AXI/AHB/APB: 3/2/2

spl: not an uImage at 1600

U-Boot 2014.04 (Jun 28 2014 - 12:19:24) Allwinner Technology

CPU: Allwinner A20 (SUN7I)

Board: A20-SOM

I2C: ready

DRAM: 1 GiB

MMC: SUNXI SD/MMC: 0

In: serial

Out: serial

Err: serial

Net: dwmac.1c50000

Hit any key to stop autoboot: 0

sun7i# setenv bootargs console=ttyS0,115200 root=/dev/mmcblk0p2 rootwait panic=10

sun7i# fatload mmc 0 0x46000000 uImage

reading uImage

4915088 bytes read in 247 ms (19 MiB/s)

sun7i# fatload mmc 0 0x49000000 sun7i-a20-som.dtb

reading sun7i-a20-som.dtb

22285 bytes read in 28 ms (776.4 KiB/s)

sun7i# bootm 0x46000000 - 0x49000000

## Booting kernel from Legacy Image at 46000000 ...

Image Name: Linux-3.16.0-rc2

Image Type: ARM Linux Kernel Image (uncompressed)

Data Size: 4915024 Bytes = 4.7 MiB

Load Address: 40008000

Entry Point: 40008000

Verifying Checksum ... OK

## Flattened Device Tree blob at 49000000

Booting using the fdt blob at 0x49000000

Loading Kernel Image ... OK

Loading Device Tree to 4fff7000, end 4ffff70c ... OK

Starting kernel ...

[ 0.000000] Booting Linux on physical CPU 0x0

[ 0.000000] Linux version 3.16.0-rc2 (br...@core.home.local) (gcc version 4.9.0 (Buildroot 2014.08-git-00381-g27a1f09-dirty) ) #1 SMP Sat Jun 28 18:04:25 BST 2014

[ 0.000000] CPU: ARMv7 Processor [410fc074] revision 4 (ARMv7), cr=10c5387d

[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache

[ 0.000000] Machine model: Olimex A20-SOM

[ 0.000000] cma: CMA: reserved 64 MiB at 6b800000

[ 0.000000] Memory policy: Data cache writealloc

[ 0.000000] psci: probing for conduit method from DT.

[ 0.000000] psci: Using PSCI v0.1 Function IDs from DT

[ 0.000000] PERCPU: Embedded 8 pages/cpu @eafb2000 s8448 r8192 d16128 u32768

[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260624

[ 0.000000] Kernel command line: console=ttyS0,115200 root=/dev/mmcblk0p2 rootwait panic=10

[ 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: 962836K/1048576K available (6459K kernel code, 890K rwdata, 2564K rodata, 656K init, 304K bss, 85740K reserved, 270336K highmem)

[ 0.000000] Virtual kernel memory layout:

[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)

[ 0.000000] fixmap : 0xffc00000 - 0xffe00000 (2048 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 : 0xc0208000 - 0xc0ad81d0 (9025 kB)

[ 0.000000] .init : 0xc0ad9000 - 0xc0b7d100 ( 657 kB)

[ 0.000000] .data : 0xc0b7e000 - 0xc0c5cb80 ( 891 kB)

[ 0.000000] .bss : 0xc0c5cb88 - 0xc0ca8bc8 ( 305 kB)

[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1

[ 0.000000] Hierarchical RCU implementation.

[ 0.000000] RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.

[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2

[ 0.000000] NR_IRQS:16 nr_irqs:16 16

[ 0.000000] Architected cp15 timer(s) running at 24.00MHz (phys).

[ 0.000008] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 2863311519744ns

[ 0.000017] Switching to timer-based delay loop

[ 0.001042] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956969942ns

[ 0.001420] sched_clock: 32 bits at 160MHz, resolution 6ns, wraps every 26843545593ns

[ 0.001680] Console: colour dummy device 80x30

[ 0.001711] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=120000)

[ 0.001725] pid_max: default: 32768 minimum: 301

[ 0.001874] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)

[ 0.001887] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)

[ 0.002475] CPU: Testing write buffer coherency: ok

[ 0.002770] /cpus/cpu@0 missing clock-frequency property

[ 0.002786] /cpus/cpu@1 missing clock-frequency property

[ 0.002798] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000

[ 0.002857] Setting up static identity map for 0x40820028 - 0x408200c0

[ 0.004963] CPU1: Booted secondary processor

[ 0.005009] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001

[ 0.005082] Brought up 2 CPUs

[ 0.005101] SMP: Total of 2 processors activated.

[ 0.005107] CPU: All CPU(s) started in HYP mode.

[ 0.005112] CPU: Virtualization extensions available.

[ 0.005797] devtmpfs: initialized

[ 0.009462] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 4

[ 0.009879] pinctrl core: initialized pinctrl subsystem

[ 0.010413] regulator-dummy: no parameters

[ 0.018014] NET: Registered protocol family 16

[ 0.019730] DMA: preallocated 256 KiB pool for atomic coherent allocations

[ 0.021359] cpuidle: using governor ladder

[ 0.021379] cpuidle: using governor menu

[ 0.027364] No ATAGs?

[ 0.027409] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.

[ 0.027421] hw-breakpoint: maximum watchpoint size is 8 bytes.

[ 0.027574] EXYNOS: PMU not supported

[ 0.029195] Serial: AMBA PL011 UART driver

[ 0.053105] edma-dma-engine edma-dma-engine.0: Can't allocate PaRAM dummy slot

[ 0.053140] edma-dma-engine: probe of edma-dma-engine.0 failed with error -5

[ 0.053466] reg-fixed-voltage ahci-5v: could not find pctldev for node /soc@01c00000/pinctrl@01c20800/ahci_pwr_pin@0, deferring probe

[ 0.053484] platform ahci-5v: Driver reg-fixed-voltage requests probe deferral

[ 0.053506] reg-fixed-voltage usb1-vbus: could not find pctldev for node /soc@01c00000/pinctrl@01c20800/usb1_vbus_pin@0, deferring probe

[ 0.053518] platform usb1-vbus: Driver reg-fixed-voltage requests probe deferral

[ 0.053538] reg-fixed-voltage usb2-vbus: could not find pctldev for node /soc@01c00000/pinctrl@01c20800/usb2_vbus_pin@0, deferring probe

[ 0.053551] platform usb2-vbus: Driver reg-fixed-voltage requests probe deferral

[ 0.053732] vcc3v0: 3000 mV

[ 0.053950] vcc3v3: 3300 mV

[ 0.054180] axp-ipsout: 5000 mV

[ 0.055944] vgaarb: loaded

[ 0.056598] SCSI subsystem initialized

[ 0.057214] usbcore: registered new interface driver usbfs

[ 0.057282] usbcore: registered new interface driver hub

[ 0.057419] usbcore: registered new device driver usb

[ 0.058085] Linux video capture interface: v2.00

[ 0.058150] pps_core: LinuxPPS API ver. 1 registered

[ 0.058187] PTP clock support registered

[ 0.058265] EDAC MC: Ver: 3.0.0

[ 0.059095] Advanced Linux Sound Architecture Driver Initialized.

[ 0.060225] Switched to clocksource arch_sys_counter

[ 0.069967] NET: Registered protocol family 2

[ 0.070714] TCP established hash table entries: 8192 (order: 3, 32768 bytes)

[ 0.070805] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)

[ 0.070927] TCP: Hash tables configured (established 8192 bind 8192)

[ 0.070996] TCP: reno registered

[ 0.071011] UDP hash table entries: 512 (order: 2, 16384 bytes)

[ 0.071070] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)

[ 0.071308] NET: Registered protocol family 1

[ 0.071714] RPC: Registered named UNIX socket transport module.

[ 0.071728] RPC: Registered udp transport module.

[ 0.071734] RPC: Registered tcp transport module.

[ 0.071740] RPC: Registered tcp NFSv4.1 backchannel transport module.

[ 0.072528] hw perfevents: enabled with ARMv7 Cortex-A7 PMU driver, 5 counters available

[ 0.073990] futex hash table entries: 512 (order: 3, 32768 bytes)

[ 0.085636] squashfs: version 4.0 (2009/01/31) Phillip Lougher

[ 0.086381] NFS: Registering the id_resolver key type

[ 0.086462] Key type id_resolver registered

[ 0.086470] Key type id_legacy registered

[ 0.086533] msgmni has been set to 1480

[ 0.087023] bounce: pool size: 64 pages

[ 0.087269] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)

[ 0.087289] io scheduler noop registered

[ 0.087302] io scheduler deadline registered

[ 0.087477] io scheduler cfq registered (default)

[ 0.088276] platform 1c13400.phy: Driver sun4i-usb-phy requests probe deferral

[ 0.091987] sun7i-a20-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver

[ 0.149961] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled

[ 0.152467] console [ttyS0] disabled

[ 0.172636] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 33, base_baud = 1500000) is a U6_16550A

[ 0.861108] console [ttyS0] enabled

[ 0.885848] 1c29800.serial: ttyS1 at MMIO 0x1c29800 (irq = 51, base_baud = 1500000) is a U6_16550A

[ 0.915986] 1c29c00.serial: ttyS2 at MMIO 0x1c29c00 (irq = 52, base_baud = 1500000) is a U6_16550A

[ 0.925619] Serial: IMX driver

[ 0.928929] msm_serial: driver initialized

[ 0.933427] STMicroelectronics ASC driver initialized

[ 0.939090] serial: Freescale lpuart driver

[ 0.943491] [drm] Initialized drm 1.1.0 20060810

[ 0.952977] loop: module loaded

[ 0.957702] platform 1c18000.sata: Driver ahci-sunxi requests probe deferral

[ 0.968388] CAN device driver interface

[ 0.973826] stmmaceth 1c50000.ethernet: no regulator found

[ 0.979410] stmmaceth 1c50000.ethernet: no reset control found

[ 0.985254] Ring mode enabled

[ 0.988306] No HW DMA feature register supported

[ 0.992838] Normal descriptors

[ 0.996166] TX Checksum insertion supported

[ 1.004430] libphy: stmmac: probed

[ 1.007865] eth0: PHY ID 001cc912 at 1 IRQ POLL (stmmac-0:01) active

[ 1.014690] pegasus: v0.9.3 (2013/04/25), Pegasus/Pegasus II USB Ethernet driver

[ 1.022187] usbcore: registered new interface driver pegasus

[ 1.027964] usbcore: registered new interface driver asix

[ 1.033432] usbcore: registered new interface driver ax88179_178a

[ 1.039587] usbcore: registered new interface driver cdc_ether

[ 1.045500] usbcore: registered new interface driver smsc75xx

[ 1.051322] usbcore: registered new interface driver smsc95xx

[ 1.057126] usbcore: registered new interface driver net1080

[ 1.062842] usbcore: registered new interface driver cdc_subset

[ 1.068824] usbcore: registered new interface driver zaurus

[ 1.074528] usbcore: registered new interface driver cdc_ncm

[ 1.080230] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver

[ 1.086761] ehci-pci: EHCI PCI platform driver

[ 1.091270] ehci-platform: EHCI generic platform driver

[ 1.096701] platform 1c14000.usb: Driver ehci-platform requests probe deferral

[ 1.104005] platform 1c1c000.usb: Driver ehci-platform requests probe deferral

[ 1.111333] ehci-omap: OMAP-EHCI Host Controller driver

[ 1.116678] ehci-orion: EHCI orion driver

[ 1.120795] SPEAr-ehci: EHCI SPEAr driver

[ 1.124891] tegra-ehci: Tegra EHCI driver

[ 1.129012] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver

[ 1.135234] ohci-pci: OHCI PCI platform driver

[ 1.139745] ohci-platform: OHCI generic platform driver

[ 1.145108] platform 1c14400.usb: Driver ohci-platform requests probe deferral

[ 1.152420] platform 1c1c400.usb: Driver ohci-platform requests probe deferral

[ 1.159712] ohci-omap3: OHCI OMAP3 driver

[ 1.163839] SPEAr-ohci: OHCI SPEAr driver

[ 1.168501] usbcore: registered new interface driver usb-storage

[ 1.175962] mousedev: PS/2 mouse device common for all mice

[ 1.183511] sunxi-rtc 1c20d00.rtc: rtc core: registered rtc-sunxi as rtc0

[ 1.190330] sunxi-rtc 1c20d00.rtc: RTC enabled

[ 1.195390] i2c /dev entries driver

[ 1.202381] usbcore: registered new interface driver uvcvideo

[ 1.208178] USB Video Class driver (1.1.1)

[ 1.212322] gspca_main: v2.14.0 registered

[ 1.220585] sunxi-wdt 1c20c90.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)

[ 1.229393] sdhci: Secure Digital Host Controller Interface driver

[ 1.235591] sdhci: Copyright(c) Pierre Ossman

[ 1.240591] Synopsys Designware Multimedia Card Interface Driver

[ 1.247394] sunxi-mmc 1c0f000.mmc: No vqmmc regulator found

[ 1.253675] sunxi-mmc 1c0f000.mmc: Got CD GPIO #225.

[ 1.285263] sunxi-mmc 1c0f000.mmc: base:0xf0074000 irq:64

[ 1.291191] sunxi-mmc 1c12000.mmc: No vqmmc regulator found

[ 1.297440] sunxi-mmc 1c12000.mmc: Got CD GPIO #235.

[ 1.330239] sunxi-mmc 1c12000.mmc: base:0xf0076000 irq:67

[ 1.335830] sdhci-pltfm: SDHCI platform and OF driver helper

[ 1.342459] usbcore: registered new interface driver usbhid

[ 1.348059] usbhid: USB HID core driver

[ 1.356171] TCP: cubic registered

[ 1.359506] NET: Registered protocol family 17

[ 1.364006] mmc0: host does not support reading read-only switch. assuming write-enable.

[ 1.364009] can: controller area network core (rev 20120528 abi 9)

[ 1.364102] NET: Registered protocol family 29

[ 1.364115] can: raw protocol (rev 20120528)

[ 1.364124] can: broadcast manager protocol (rev 20120528 t)

[ 1.364138] can: netlink gateway (rev 20130117) max_hops=1

[ 1.364607] Key type dns_resolver registered

[ 1.364722] ThumbEE CPU extension supported.

[ 1.364744] Registering SWP/SWPB emulation handler

[ 1.366374] ahci-5v: 5000 mV

[ 1.366855] usb1-vbus: 5000 mV

[ 1.367268] usb2-vbus: 5000 mV

[ 1.405274] ahci-sunxi 1c18000.sata: controller can't do PMP, turning off CAP_PMP

[ 1.405284] ahci-sunxi 1c18000.sata: forcing PORTS_IMPL to 0x1

[ 1.405346] ahci-sunxi 1c18000.sata: AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl platform mode

[ 1.405358] ahci-sunxi 1c18000.sata: flags: ncq sntf pm led clo only pio slum part ccc

[ 1.406377] scsi0 : ahci_platform

[ 1.406739] ata1: SATA max UDMA/133 mmio [mem 0x01c18000-0x01c18fff] port 0x100 irq 88

[ 1.407512] ehci-platform 1c14000.usb: EHCI Host Controller

[ 1.407551] ehci-platform 1c14000.usb: new USB bus registered, assigned bus number 1

[ 1.407730] ehci-platform 1c14000.usb: irq 71, io mem 0x01c14000

[ 1.415245] ehci-platform 1c14000.usb: USB 2.0 started, EHCI 1.00

[ 1.416173] hub 1-0:1.0: USB hub found

[ 1.416215] hub 1-0:1.0: 1 port detected

[ 1.417425] ehci-platform 1c1c000.usb: EHCI Host Controller

[ 1.417460] ehci-platform 1c1c000.usb: new USB bus registered, assigned bus number 2

[ 1.417643] ehci-platform 1c1c000.usb: irq 72, io mem 0x01c1c000

[ 1.425241] ehci-platform 1c1c000.usb: USB 2.0 started, EHCI 1.00

[ 1.426158] hub 2-0:1.0: USB hub found

[ 1.426199] hub 2-0:1.0: 1 port detected

[ 1.427260] ohci-platform 1c14400.usb: Generic Platform OHCI controller

[ 1.427310] ohci-platform 1c14400.usb: new USB bus registered, assigned bus number 3

[ 1.427411] ohci-platform 1c14400.usb: irq 96, io mem 0x01c14400

[ 1.485133] hub 3-0:1.0: USB hub found

[ 1.485176] hub 3-0:1.0: 1 port detected

[ 1.486312] ohci-platform 1c1c400.usb: Generic Platform OHCI controller

[ 1.486350] ohci-platform 1c1c400.usb: new USB bus registered, assigned bus number 4

[ 1.486486] ohci-platform 1c1c400.usb: irq 97, io mem 0x01c1c400

[ 1.545123] hub 4-0:1.0: USB hub found

[ 1.545176] hub 4-0:1.0: 1 port detected

[ 1.548647] sunxi-rtc 1c20d00.rtc: setting system clock to 1970-01-03 11:18:21 UTC (213501)

[ 1.552359] vcc3v0: disabling

[ 1.552477] ALSA device list:

[ 1.552480] No soundcards found.

[ 1.605528] mmc0: new high speed SDHC card at address 0007

[ 1.611554] mmcblk0: mmc0:0007 SD08G 7.42 GiB

[ 1.617501] mmcblk0: p1 p2

[ 1.730250] ata1: SATA link down (SStatus 0 SControl 300)

[ 1.737393] EXT4-fs (mmcblk0p2): mounting ext3 file system using the ext4 subsystem

[ 1.757378] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)

[ 1.765543] VFS: Mounted root (ext3 filesystem) readonly on device 179:2.

[ 1.776474] devtmpfs: mounted

[ 1.780137] Freeing unused kernel memory: 656K (c0ad9000 - c0b7d000)

[ 2.353385] EXT4-fs (mmcblk0p2): re-mounted. Opts: data=ordered

Starting logging: OK

Initializing random number generator... [ 2.435003] random: dd urandom read with 40 bits of entropy available

done.

Starting network...

A20-SOM - HELLO WORLD!

A20-SOM login:

A20-SOM - HELLO WORLD!

A20-SOM login: root

#

# cat /proc/cpuinfo

processor : 0

model name : ARMv7 Processor rev 4 (v7l)

Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm

CPU implementer : 0x41

CPU architecture: 7

CPU variant : 0x0

CPU part : 0xc07

CPU revision : 4

processor : 1

model name : ARMv7 Processor rev 4 (v7l)

Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm

CPU implementer : 0x41

CPU architecture: 7

CPU variant : 0x0

CPU part : 0xc07

CPU revision : 4

Hardware : Allwinner sun7i (A20) Family

Revision : 0000

Serial : 0000000000000000

#

# uname [ 24.547291] random: nonblocking pool is initialized

-a

Linux A20-SOM 3.16.0-rc2 #1 SMP Sat Jun 28 18:04:25 BST 2014 armv7l GNU/Linux

# ifconfig -a

eth0 Link encap:Ethernet HWaddr 12:34:56:78:99:AA

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:117

lo Link encap:Local Loopback

inet addr:127.0.0.1 Mask:255.0.0.0

UP LOOPBACK RUNNING MTU:65536 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:0

RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

# ifconfig eth0 192.100.1.19 netmask 255.255.255.0 up

[ 54.041368] No MAC Management Counters available

# ping [ 58.030557] stmmaceth 1c50000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx

#

# ping 192.100.1.1

PING 192.100.1.1 (192.100.1.1): 56 data bytes

64 bytes from 192.100.1.1: seq=0 ttl=64 time=0.781 ms

64 bytes from 192.100.1.1: seq=1 ttl=64 time=0.338 ms

64 bytes from 192.100.1.1: seq=2 ttl=64 time=0.324 ms

--- 192.100.1.1 ping statistics ---

3 packets transmitted, 3 packets received, 0% packet loss

round-trip min/avg/max = 0.324/0.481/0.781 ms

#

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