手上有个周立功的开发板，测试一下性能，第一步安装官方Linux系统
硬件：A6G2C-WB256LI 核心板，IoT-6G2C-L底板，8GB TF卡，串口工具
软件：EPC_IoT_M6GxC_A6GxC_V1.07.00\04. 固件烧写\1、TF卡烧写\A6G2C-WB256LI-V1.03
环境：win7
一.在电脑上插入TF卡和读卡器，管理员身份运行脚本m6g2c_burn_script
?输入TF卡的盘符、选择Y来允许格式化TF卡，等待1分钟左右，完成制作TF卡。
参考EPC_IoT_M6GxC_A6GxC_V1.07.00\03. 开发指南?\【开发指南】M6G2C&A6G2C系列核心板软件开发指南_V1.07.pdf章节9.2。
?
二.板卡JP3、JP6分别对地短路，接上串口工具：
?上电，报文如下：
?
?三.可以进入系统，用户名、密码均为root
U-Boot 2015.04-14511-gf2ce9e0 (Oct 18 2018 - 17:46:41)
CPU: Freescale i.MX6UL rev1.1 at 396 MHz
CPU: Temperature 42 C
Reset cause: POR
Board: EPC-M6G2C
I2C: ready
DRAM: 256 MiB
NAND: 256 MiB
MMC: FSL_SDHC: 0
*** Warning - bad CRC, using default environment
panel name: TFT435Q
Display: TFT435Q (480x272)
Video: 480x272x16
NAND read: device 0 offset 0x1500000, size 0x100000
1048576 bytes read: OK
In: serial
Out: serial
Err: serial
Net: FEC1
Normal Boot
###### Autobooting in 1 seconds,
###### connect WDG pin and press <zlg> or <ZLG> keys to stop autoboot.
Booting from NAND...
NAND read: device 0 offset 0x400000, size 0x100000
1048576 bytes read: OK
NAND read: device 0 offset 0x500000, size 0x800000
8388608 bytes read: OK
Kernel image @ 0x80800000 [ 0x000000 - 0x59cce0 ]
## Flattened Device Tree blob at 83000000
Booting using the fdt blob at 0x83000000
Using Device Tree in place at 83000000, end 8300bbc1
Starting kernel ...
Booting Linux on physical CPU 0x0
Linux version 4.1.15 (zengxiangyuan@linux-compiler) (gcc version 4.9.2 20140904 (prerelease) (crosstool-NG linaro-1.13.1-4.9-2014.09 - Linaro GCC 4.9-2014.09) ) #1 SMP PREEMPT Fri Oct 19 09:03:31 CST 2018
CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c53c7d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine model: ZLG EPC-A6G2C Board
Reserved memory: created CMA memory pool at 0x8e000000, size 32 MiB
Reserved memory: initialized node linux,cma, compatible id shared-dma-pool
Memory policy: Data cache writealloc
PERCPU: Embedded 12 pages/cpu @8ddc2000 s17152 r8192 d23808 u49152
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 65024
Kernel command line: console=ttymxc0,115200 ubi.mtd=5 ro root=ubi0:rootfs rootfstype=ubifs g_mass_storage.stall=0 g_mass_storage.removable=1 g_mass_storage.idVendor=0x066F g_mass_storage.idProduct=0x37FF g_mass_storage.iSerialNumber=""
PID hash table entries: 1024 (order: 0, 4096 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 215256K/262144K available (7427K kernel code, 290K rwdata, 2348K rodata, 1068K init, 429K bss, 14120K reserved, 32768K cma-reserved, 0K highmem)
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0x90800000 - 0xff000000 (1768 MB)
lowmem : 0x80000000 - 0x90000000 ( 256 MB)
pkmap : 0x7fe00000 - 0x80000000 ( 2 MB)
modules : 0x7f000000 - 0x7fe00000 ( 14 MB)
.text : 0x80008000 - 0x80994200 (9777 kB)
.init : 0x80995000 - 0x80aa0000 (1068 kB)
.data : 0x80aa0000 - 0x80ae8840 ( 291 kB)
.bss : 0x80aeb000 - 0x80b5647c ( 430 kB)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Preemptible hierarchical RCU implementation.
Additional per-CPU info printed with stalls.
RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
NR_IRQS:16 nr_irqs:16 16
mxc_clocksource_init 24000000
Switching to timer-based delay loop, resolution 41ns
sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
clocksource mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
Console: colour dummy device 80x30
Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
/cpus/cpu@0 missing clock-frequency property
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x80008280 - 0x800082d8
Brought up 1 CPUs
SMP: Total of 1 processors activated (48.00 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
device-tree: Duplicate name in lcdif@021c8000, renamed to "display#1"
VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
clocksource jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor ladder
cpuidle: using governor menu
hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 8 bytes.
imx6ul-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
zlg gpio watchdog driver registered.
mxs-dma 1804000.dma-apbh: initialized
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
i2c-gpio analog-i2c: using pins 136 (SDA) and 135 (SCL)
Linux video capture interface: v2.00
pps_core: LinuxPPS API ver. 1 registered
pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
PTP clock support registered
Advanced Linux Sound Architecture Driver Initialized.
Bluetooth: Core ver 2.20
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Bluetooth: L2CAP socket layer initialized
Bluetooth: SCO socket layer initialized
Switched to clocksource mxc_timer1
NET: Registered protocol family 2
TCP established hash table entries: 2048 (order: 1, 8192 bytes)
TCP bind hash table entries: 2048 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Bus freq driver module loaded
futex hash table entries: 256 (order: 2, 16384 bytes)
VFS: Disk quotas dquot_6.6.0
VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
jffs2: version 2.2. (NAND) ? 2001-2006 Red Hat, Inc.
fuse init (API version 7.23)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
imx2-wdt 20bc000.wdog: timeout 60 sec (nowayout=0)
imx-sdma 20ec000.sdma: no event needs to be remapped
imx-sdma 20ec000.sdma: loaded firmware 3.3
imx-sdma 20ec000.sdma: initialized
2018000.serial: ttymxc6 at MMIO 0x2018000 (irq = 21, base_baud = 5000000) is a IMX
2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 22, base_baud = 5000000) is a IMX
console [ttymxc0] enabled
2024000.serial: ttymxc7 at MMIO 0x2024000 (irq = 23, base_baud = 5000000) is a IMX
21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 235, base_baud = 5000000) is a IMX
21ec000.serial: ttymxc2 at MMIO 0x21ec000 (irq = 236, base_baud = 5000000) is a IMX
21f0000.serial: ttymxc3 at MMIO 0x21f0000 (irq = 237, base_baud = 5000000) is a IMX
21f4000.serial: ttymxc4 at MMIO 0x21f4000 (irq = 238, base_baud = 5000000) is a IMX
21fc000.serial: ttymxc5 at MMIO 0x21fc000 (irq = 239, base_baud = 5000000) is a IMX
[drm] Initialized drm 1.1.0 20060810
[drm] Initialized vivante 1.0.0 20120216 on minor 0
brd: module loaded
loop: module loaded
nand: device found, Manufacturer ID: 0x01, Chip ID: 0xda
nand: AMD/Spansion S34ML02G2
nand: 256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 128
gpmi-nand 1806000.gpmi-nand: mode:4 ,failed in set feature.
Bad block table found at page 131008, version 0x01
Bad block table found at page 130944, version 0x01
7 ofpart partitions found on MTD device gpmi-nand
Creating 7 MTD partitions on "gpmi-nand":
0x000000000000-0x000000400000 : "u-boot"
0x000000400000-0x000000500000 : "dtb"
0x000000500000-0x000000d00000 : "kernel-0"
0x000000d00000-0x000001500000 : "kernel-1"
0x000001500000-0x000001900000 : "logo"
0x000001900000-0x000006200000 : "rootfs"
0x000006200000-0x000010000000 : "opt"
gpmi-nand 1806000.gpmi-nand: driver registered.
backlight supply power not found, using dummy regulator
21c8000.lcdif supply lcd not found, using dummy regulator
mxsfb 21c8000.lcdif: failed to find mxc display driver
<1> file szie:131512,offset:950, width:480, height:272,count:8,compress:0, imagesize:130562, clrused:224
real_width:480
clrsize:224
<2> ### get flash logo ###
Console: switching to colour frame buffer device 60x34
mxsfb 21c8000.lcdif: initialized
spi_imx 2008000.ecspi: probed
CAN device driver interface
2090000.can supply xceiver not found, using dummy regulator
flexcan 2090000.can: device registered (reg_base=90a28000, irq=32)
20b4000.ethernet supply phy not found, using dummy regulator
pps pps0: new PPS source ptp0
libphy: fec_enet_mii_bus: probed
fec 20b4000.ethernet eth0: registered PHC device 0
2188000.ethernet supply phy not found, using dummy regulator
pps pps1: new PPS source ptp1
fec 2188000.ethernet eth1: registered PHC device 1
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-mxc: Freescale On-Chip EHCI Host driver
usbcore: registered new interface driver usb-storage
usbcore: registered new interface driver usb_ehset_test
2184800.usbmisc supply vbus-wakeup not found, using dummy regulator
2184000.usb supply vbus not found, using dummy regulator
2184200.usb supply vbus not found, using dummy regulator
ci_hdrc ci_hdrc.1: EHCI Host Controller
ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1
ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
Mass Storage Function, version: 2009/09/11
LUN: removable file: (no medium)
LUN: removable file: (no medium)
Number of LUNs=1
Number of LUNs=1
g_mass_storage gadget: Mass Storage Gadget, version: 2009/09/11
g_mass_storage gadget: g_mass_storage ready
mousedev: PS/2 mouse device common for all mice
input: 20cc000.snvs:snvs-powerkey as /devices/platform/soc/2000000.aips-bus/20cc000.snvs/20cc000.snvs:snvs-powerkey/input/input0
input: iMX6UL TouchScreen Controller as /devices/virtual/input/input1
rtc-pcf85063 4-0051: chip found, driver version 0.4.3
rtc-pcf85063 4-0051: clock integrity is not guaranteed.
rtc-pcf85063 4-0051: rtc core: registered rtc-pcf85063 as rtc0
snvs_rtc 20cc000.snvs:snvs-rtc-lp: rtc core: registered 20cc000.snvs:snvs-r as rtc1
i2c /dev entries driver
pxp-v4l2 pxp_v4l2: initialized
Bluetooth: HCI UART driver ver 2.3
Bluetooth: HCI UART protocol H4 registered
Bluetooth: HCI UART protocol BCSP registered
Bluetooth: HCI UART protocol ATH3K registered
usbcore: registered new interface driver bcm203x
usbcore: registered new interface driver btusb
usbcore: registered new interface driver ath3k
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
sdhci-pltfm: SDHCI platform and OF driver helper
/soc/aips-bus@02100000/usdhc@02190000: voltage-ranges unspecified
sdhci-esdhc-imx 2190000.usdhc: Got CD GPIO
sdhci-esdhc-imx 2190000.usdhc: Got WP GPIO
sdhci-esdhc-imx 2190000.usdhc: No vmmc regulator found
sdhci-esdhc-imx 2190000.usdhc: No vqmmc regulator found
mmc0: SDHCI controller on 2190000.usdhc [2190000.usdhc] using ADMA
/soc/aips-bus@02100000/usdhc@02194000: voltage-ranges unspecified
sdhci-esdhc-imx 2194000.usdhc: assigned as wifi host
sdhci-esdhc-imx 2194000.usdhc: No vmmc regulator found
sdhci-esdhc-imx 2194000.usdhc: No vqmmc regulator found
mmc1: SDHCI controller on 2194000.usdhc [2194000.usdhc] using ADMA
caam 2140000.caam: Entropy delay = 3200
caam 2140000.caam: Instantiated RNG4 SH0
mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
caam 2140000.caam: Instantiated RNG4 SH1
caam 2140000.caam: device ID = 0x0a16030000000000 (Era -524)
caam 2140000.caam: job rings = 3, qi = 0
mmc1: new high speed SDIO card at address 0001
caam algorithms registered in /proc/crypto
caam_jr 2141000.jr0: registering rng-caam
signature pass.
snvs-secvio 20cc000.caam-snvs: can't get snvs clock
snvs-secvio 20cc000.caam-snvs: violation handlers armed - non-secure state
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
2198000.adc supply vref not found, using dummy regulator
fsl-asrc 2034000.asrc: driver registered
imx-mqs sound-mqs: fsl-mqs-dai <-> 2028000.sai mapping ok
imx-mqs sound-mqs: snd-soc-dummy-dai <-> 2034000.asrc mapping ok
imx-mqs sound-mqs: fsl-mqs-dai <-> 2028000.sai mapping ok
NET: Registered protocol family 26
nf_conntrack version 0.5.0 (3875 buckets, 15500 max)
ip_tables: (C) 2000-2006 Netfilter Core Team
NET: Registered protocol family 10
sit: IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
can: controller area network core (rev 20120528 abi 9)
NET: Registered protocol family 29
can: raw protocol (rev 20120528)
can: broadcast manager protocol (rev 20120528 t)
can: netlink gateway (rev 20130117) max_hops=1
Bluetooth: RFCOMM TTY layer initialized
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM ver 1.11
Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Bluetooth: BNEP filters: protocol multicast
Bluetooth: BNEP socket layer initialized
Bluetooth: HIDP (Human Interface Emulation) ver 1.2
Bluetooth: HIDP socket layer initialized
8021q: 802.1Q VLAN Support v1.8
Key type dns_resolver registered
ubi0: attaching mtd5
ubi0: scanning is finished
ubi0: attached mtd5 (name "rootfs", size 73 MiB)
ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
ubi0: good PEBs: 584, bad PEBs: 0, corrupted PEBs: 0
ubi0: user volume: 1, internal volumes: 1, max. volumes count: 128
ubi0: max/mean erase counter: 2/1, WL threshold: 4096, image sequence number: 1230758397
ubi0: available PEBs: 0, total reserved PEBs: 584, PEBs reserved for bad PEB handling: 40
ubi0: background thread "ubi_bgt0d" started, PID 141
rtc-pcf85063 4-0051: clock integrity is not guaranteed.
rtc-pcf85063 4-0051: setting system clock to 2002-02-14 03:26:26 UTC (1013657186)
ALSA device list:
#0: mqs-audio
UBIFS (ubi0:0): recovery needed
UBIFS (ubi0:0): recovery deferred
UBIFS (ubi0:0): UBIFS: mounted UBI device 0, volume 0, name "rootfs", R/O mode
UBIFS (ubi0:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
UBIFS (ubi0:0): FS size: 67170304 bytes (64 MiB, 529 LEBs), journal size 9015296 bytes (8 MiB, 71 LEBs)
UBIFS (ubi0:0): reserved for root: 0 bytes (0 KiB)
UBIFS (ubi0:0): media format: w4/r0 (latest is w4/r0), UUID ACBC6A91-C455-4A77-AF48-4831C452919B, small LPT model
VFS: Mounted root (ubifs filesystem) readonly on device 0:15.
devtmpfs: mounted
Freeing unused kernel memory: 1068K (80995000 - 80aa0000)
random: nonblocking pool is initialized
Starting logging: OK
Populating /dev using udev: udevd[155]: starting version 3.1.2
done
Starting portmap: done
read-only file system detected...done
Starting system message bus: done
Starting network...
No persistent location to store SSH host keys. New keys will be
generated at each boot. Are you sure this is what you want to do?
Starting dropbear sshd: OK
Starting sshd: UBIFS (ubi0:0): completing deferred recovery
UBIFS (ubi0:0): background thread "ubifs_bgt0_0" started, PID 215
UBIFS (ubi0:0): deferred recovery completed
OK
Starting telnetd: OK
Starting vsftpd: OK
Start mount /opt: ubi1: attaching mtd6
ubi1: scanning is finished
ubi1: attached mtd6 (name "opt", size 158 MiB)
ubi1: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
ubi1: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
ubi1: VID header offset: 2048 (aligned 2048), data offset: 4096
ubi1: good PEBs: 1260, bad PEBs: 4, corrupted PEBs: 0
ubi1: user volume: 1, internal volumes: 1, max. volumes count: 128
ubi1: max/mean erase counter: 1/0, WL threshold: 4096, image sequence number: 1375075294
ubi1: available PEBs: 0, total reserved PEBs: 1260, PEBs reserved for bad PEB handling: 36
ubi1: background thread "ubi_bgt1d" started, PID 227
UBI device number 1, total 1260 LEBs (159989760 bytes, 152.6 MiB), available 0 LEBs (0 bytes), LEB size 126976 bytes (124.0 KiB)
UBIFS (ubi1:0): background thread "ubifs_bgt1_0" started, PID 229
UBIFS (ubi1:0): recovery needed
UBIFS (ubi1:0): recovery completed
UBIFS (ubi1:0): UBIFS: mounted UBI device 1, volume 0, name "opt"
UBIFS (ubi1:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
UBIFS (ubi1:0): FS size: 153513984 bytes (146 MiB, 1209 LEBs), journal size 7745536 bytes (7 MiB, 61 LEBs)
UBIFS (ubi1:0): reserved for root: 4952683 bytes (4836 KiB)
UBIFS (ubi1:0): media format: w4/r0 (latest is w4/r0), UUID 5AB74132-0DFE-41C5-900E-6DDDB162F9D9, small LPT model
Mount /opt ok
fec 20b4000.ethernet eth0: Freescale FEC PHY driver [NS DP83848C 10/100 Mbps PHY] (mii_bus:phy_addr=20b4000.ethernet:05, irq=-1)
IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
fec 2188000.ethernet eth1: Freescale FEC PHY driver [NS DP83848C 10/100 Mbps PHY] (mii_bus:phy_addr=20b4000.ethernet:01, irq=-1)
IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
Welcome to ZHIYUAN IoT-A6G2C Board
IoT-A6G2C login: root?
?
?
?