本文主要是介绍zedboard REV .D上移植Linaro所出现问题以及一些观点，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
首先，放上成功启动后串口打印信息，方便有需要者自己看一下是卡在哪一步。
U-Boot 2016.07 (Oct 22 2017 - 21:30:47 +0800)
Model: Zynq Zed Development Board
Board: Xilinx Zynq
DRAM: ECC disabled 512 MiB
MMC: sdhci@e0100000: 0
SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64 KiB, total 32 MiB
*** Warning - bad CRC, using default environment
In: serial@e0001000
Out: serial@e0001000
Err: serial@e0001000
Model: Zynq Zed Development Board
Board: Xilinx Zynq
Net: ZYNQ GEM: e000b000, phyaddr 0, interface rgmii-id
eth0: ethernet@e000b000
reading uEnv.txt
379 bytes read in 11 ms (33.2 KiB/s)
Importing environment from SD ...
Hit any key to stop autoboot: 0
Device: sdhci@e0100000
Manufacturer ID: 27
OEM: 5048
Name: SD04G
Tran Speed: 50000000
Rd Block Len: 512
SD version 3.0
High Capacity: Yes
Capacity: 3.7 GiB
Bus Width: 4-bit
Erase Group Size: 512 Bytes
reading uEnv.txt
379 bytes read in 10 ms (36.1 KiB/s)
Loaded environment from uEnv.txt
Importing environment from SD ...
Running uenvcmd ...
Copying Linux from SD to RAM...
reading uImage
4080360 bytes read in 357 ms (10.9 MiB/s)
reading devicetree.dtb
13393 bytes read in 19 ms (687.5 KiB/s)
reading uramdisk.image.gz
** Unable to read file uramdisk.image.gz **
## Booting kernel from Legacy Image at 03000000 ...
Image Name: Linux-4.9.0
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 4080296 Bytes = 3.9 MiB
Load Address: 00008000
Entry Point: 00008000
Verifying Checksum ... OK
## Flattened Device Tree blob at 02a00000
Booting using the fdt blob at 0x2a00000
Loading Kernel Image ... OK
Loading Device Tree to 1eb0d000, end 1eb13450 ... OK
前面是Bin文件引导arm工作的一些过程，包括设备树和核镜像的加载，如果这之前都有问题，单独调boot.bin，然后再加入devicetree文件测试。
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
Booting Linux on physical CPU 0x0
Linux version 4.9.0 (root@suyang-virtual-machine) (gcc version 4.9.2 (Sourcery CodeBench Lite 2015.05-17) ) #1 SMP PREEMPT Sun Oct 22 22:05:58 CST 2017
CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
OF: fdt:Machine model: Xilinx Zynq ZED
bootconsole [earlycon0] enabled
cma: Reserved 128 MiB at 0x16800000
Memory policy: Data cache writealloc
percpu: Embedded 13 pages/cpu @dfb91000 s23744 r8192 d21312 u53248
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
Kernel command line: console=ttyPS0,115200 root=/dev/mmcblk0p2 rw earlyprintk rootfstyle=ext4 rootwait
PID hash table entries: 2048 (order: 1, 8192 bytes)
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 379732K/524288K available (5553K kernel code, 236K rwdata, 2120K rodata, 264K init, 154K bss, 13484K reserved, 131072K cma-reserved, 0K highmem)
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xe0800000 - 0xff800000 ( 496 MB)
lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc0574844 (5555 kB)
.init : 0xc07b4000 - 0xc07f6000 ( 264 kB)
.data : 0xc07f6000 - 0xc0831000 ( 236 kB)
.bss : 0xc0831000 - 0xc0857a34 ( 155 kB)
Preemptible hierarchical RCU implementation.
Build-time adjustment of leaf fanout to 32.
RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=2
NR_IRQS:16 nr_irqs:16 16
efuse mapped to e0800000
slcr mapped to e0802000
L2C: platform modifies aux control register: 0x72360000 -> 0x72760000
L2C: DT/platform modifies aux control register: 0x72360000 -> 0x72760000
L2C-310 erratum 769419 enabled
L2C-310 enabling early BRESP for Cortex-A9
L2C-310 full line of zeros enabled for Cortex-A9
L2C-310 ID prefetch enabled, offset 1 lines
L2C-310 dynamic clock gating enabled, standby mode enabled
L2C-310 cache controller enabled, 8 ways, 512 kB
L2C-310: CACHE_ID 0x410000c8, AUX_CTRL 0x76760001
zynq_clock_init: clkc starts at e0802100
Zynq clock init
sched_clock: 64 bits at 333MHz, resolution 3ns, wraps every 4398046511103ns
clocksource: arm_global_timer: mask: 0xffffffffffffffff max_cycles: 0x4ce07af025, max_idle_ns: 440795209040 ns
Switching to timer-based delay loop, resolution 3ns
clocksource: ttc_clocksource: mask: 0xffff max_cycles: 0xffff, max_idle_ns: 537538477 ns
timer #0 at e080a000, irq=17
Console: colour dummy device 80x30
Calibrating delay loop (skipped), value calculated using timer frequency.. 666.66 BogoMIPS (lpj=3333333)
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
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x82c0 - 0x8318
CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
Brought up 2 CPUs
SMP: Total of 2 processors activated (1333.33 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
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
hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 4 bytes.
zynq-ocm f800c000.ocmc: ZYNQ OCM pool: 256 KiB @ 0xe0840000
zynq-pinctrl 700.pinctrl: zynq pinctrl initialized
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
media: Linux media interface: v0.10
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
EDAC MC: Ver: 3.0.0
Advanced Linux Sound Architecture Driver Initialized.
clocksource: Switched to clocksource arm_global_timer
NET: Registered protocol family 2
TCP established hash table entries: 4096 (order: 2, 16384 bytes)
TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
futex hash table entries: 512 (order: 3, 32768 bytes)
workingset: timestamp_bits=30 max_order=17 bucket_order=0
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
dma-pl330 f8003000.dmac: Loaded driver for PL330 DMAC-241330
dma-pl330 f8003000.dmac: DBUFF-128x8bytes Num_Chans-8 Num_Peri-4 Num_Events-16
xilinx-vdma 43000000.axivdma: missing xlnx,flush-fsync property
xilinx-vdma 43000000.axivdma: missing xlnx,addrwidth property
xilinx-vdma 43000000.axivdma: Xilinx AXI VDMA Engine Driver Probed!!
e0001000.serial: ttyPS0 at MMIO 0xe0001000 (irq = 25, base_baud = 3125000) is a xuartps
▒console [ttyPS0] enabled
console [ttyPS0] enabled
bootconsole [earlycon0] disabled
bootconsole [earlycon0] disabled
xdevcfg f8007000.devcfg: ioremap 0xf8007000 to e081e000
[drm] Initialized
brd: module loaded
loop: module loaded
m25p80 spi32766.0: found s25fl256s1, expected n25q128a11
m25p80 spi32766.0: s25fl256s1 (32768 Kbytes)
5 ofpart partitions found on MTD device spi32766.0
Creating 5 MTD partitions on "spi32766.0":
0x000000000000-0x000000500000 : "boot"
0x000000500000-0x000000520000 : "bootenv"
0x000000520000-0x000000540000 : "config"
0x000000540000-0x000000fc0000 : "image"
0x000000fc0000-0x000002000000 : "spare"
MACsec IEEE 802.1AE
libphy: Fixed MDIO Bus: probed
libphy: mdio_driver_register: xgmiitorgmii
tun: Universal TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
libphy: MACB_mii_bus: probed
macb e000b000.ethernet eth0: Cadence GEM rev 0x00020118 at 0xe000b000 irq 27 (00:0a:35:00:01:22)
Marvell 88E1510 e000b000.etherne:00: attached PHY driver [Marvell 88E1510] (mii_bus:phy_addr=e000b000.etherne:00, irq=-1)
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
usbcore: registered new interface driver usb-storage
usbcore: registered new interface driver usbserial
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial support registered for generic
usbcore: registered new interface driver ftdi_sio
usbserial: USB Serial support registered for FTDI USB Serial Device
e0002000.usb supply vbus not found, using dummy regulator
ULPI transceiver vendor/product ID 0x0451/0x1507
Found TI TUSB1210 ULPI transceiver.
ULPI integrity check: passed.
ci_hdrc ci_hdrc.0: EHCI Host Controller
ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1
ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
mousedev: PS/2 mouse device common for all mice
i2c /dev entries driver
usbcore: registered new interface driver uvcvideo
USB Video Class driver (1.1.1)
gspca_main: v2.14.0 registered
cdns-wdt f8005000.watchdog: Xilinx Watchdog Timer at e088a000 with timeout 10s
Xilinx Zynq CpuIdle Driver started
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
sdhci-pltfm: SDHCI platform and OF driver helper
mmc0: SDHCI controller on e0100000.sdhci [e0100000.sdhci] using DMA
ledtrig-cpu: registered to indicate activity on CPUs
hidraw: raw HID events driver (C) Jiri Kosina
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
NET: Registered protocol family 17
Registering SWP/SWPB emulation handler
mmc0: new high speed SDHC card at address 0007
mmcblk0: mmc0:0007 SD04G 3.71 GiB
mmcblk0: p1 p2
Console: switching to colour frame buffer device 128x48
axi-hdmi 70e00000.axi_hdmi: fb0: frame buffer device
[drm] Initialized axi_hdmi_drm 1.0.0 20120930 on minor 0
asoc-simple-card adv7511_hdmi_snd: hdmi-hifi.0 <-> 75c00000.axi-spdif-tx mapping ok
asoc-simple-card zed_sound: adau-hifi <-> 77600000.axi-i2s mapping ok
hctosys: unable to open rtc device (rtc0)
ALSA device list:
#0: HDMI monitor
#1: ZED ADAU1761
random: fast init done
EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
EXT4-fs (mmcblk0p2): couldn't mount as ext2 due to feature incompatibilities
EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
VFS: Mounted root (ext4 filesystem) on device 179:2.
devtmpfs: mounted
Freeing unused kernel memory: 264K (c07b4000 - c07f6000)
This architecture does not have kernel memory protection.
init: hwclock main process (865) terminated with status 1
init: ureadahead main process (866) terminated with status 5
Last login: Thu Jan 1 00:00:09 UTC 1970 on tty1
Login timed out after 60 seconds.
Last login: Thu Jan 1 00:01:34 UTC 1970 on tty1
linaro
root
cat: /var/lib/update-notifier/fsck-at-reboot: No such file or directory
run-parts: /etc/update-motd.d/98-fsck-at-reboot exited with return code 1
Welcome to Linaro 12.11 (GNU/Linux 4.9.0 armv7l)
* Documentation: https://wiki.linaro.org/
至此，系统启动完成。
说一下其中的一些问题，
1，如果卡在init: ureadahead main process (***) terminated with status 5 这类地方进不了系统，首先得明确你的引导boot.bin文件基本没有什么问题，是在linux内核启动过程中卡住，这个时候建议重新生成一下文件目录。
2，前面启动过程中有直接卡在某处，然后图形输出为两只linux企鹅，个人认为可能是Image镜像文件不匹配之类，建议重新生成。
具体操作指南：（感谢众多大神经验分享）
1.https://wiki.analog.com/resources/tools-software/linux-drivers/platforms/zynq#dokuwiki__top
2.http://www.openhw.org/module/forum/thread-597214-1-1.html
3.http://svenand.blogdrives.com/archive/199.html#.W2vKNa6Wa01
4.Zedboard的guide文档。
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