在之前几节分别介绍了基于zynq的Linux启动所需文件的生成方法，本节则总结一下，在ZedBoard上实测一下Linux应用。

《基于zynq的交叉编译平台》：准备工作，建立交叉编译环境

《u-boot image生成》：生成u-boot文件（BOOT.BIN）

《Linux内核编译》：生成Linux内核镜像文件（zImage）

《设备树生成》：生成设备树文件（devicetree.dtb）

《基于zynq的Linux根文件系统生成》：生成根文件系统文件（ramdisk8M.image.gz）

Linux启动所需文件生成后信息如图1所示：

图1

将以上文件拷贝到SD卡中，ZedBoard上电，在串口终端中打印出的信息如下：

U-Boot 2012.04.01 (Jan 07 2013 - 13:42:00)

DRAM: 512 MiB

WARNING: Caches not enabled

MMC: SDHCI: 0

Using default environment

In: serial

Out: serial

Err: serial

Net: zynq_gem

Hit any key to stop autoboot: 0

Copying Linux from SD to RAM...

Device: SDHCI

Manufacturer ID: 12

OEM: 3456

Name: SMI

Tran Speed: 25000000

Rd Block Len: 512

SD version 2.0

High Capacity: Yes

Capacity: 3.7 GiB

Bus Width: 4-bit

reading zImage

2479640 bytes read

reading devicetree.dtb

9648 bytes read

reading ramdisk8M.image.gz

3694108 bytes read

## Starting application at 0x00008000 ...

Uncompressing Linux... done, booting the kernel.

[ 0.000000] Booting Linux on physical CPU 0

[ 0.000000] Linux version 3.3.0-digilent-12.07-zed-beta (tinghui.wang@DIGILENT_LINUX) (gcc version 4.6.1 (Sourcery CodeBench Lite 2011.09-50) ) #2 SMP PREEMPT Thu Jul 12 21:01:42 PDT 2012

[ 0.000000] CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5387d

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

[ 0.000000] Machine: Xilinx Zynq Platform, model: Xilinx Zynq ZED

[ 0.000000] bootconsole [earlycon0] enabled

[ 0.000000] Memory policy: ECC disabled, Data cache writealloc

[ 0.000000] BUG: mapping for 0xf8f00000 at 0xfe00c000 out of vmalloc space

[ 0.000000] BUG: mapping for 0xe0000000 at 0xfe000000 out of vmalloc space

[ 0.000000] BUG: mapping for 0xffff1000 at 0xfe200000 out of vmalloc space

[ 0.000000] PERCPU: Embedded 7 pages/cpu @c148b000 s5696 r8192 d14784 u32768

[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 125824

[ 0.000000] Kernel command line: console=ttyPS0,115200 root=/dev/ram rw initrd=0x800000,8M earlyprintk rootwait devtmpfs.mount=1

[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)

[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)

[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)

[ 0.000000] Memory: 240MB 256MB = 496MB total

[ 0.000000] Memory: 489848k/489848k available, 34440k reserved, 0K highmem

[ 0.000000] Virtual kernel memory layout:

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

[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)

[ 0.000000] vmalloc : 0xe0800000 - 0xfd000000 ( 456 MB)

[ 0.000000] lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)

[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)

[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)

[ 0.000000] .text : 0xc0008000 - 0xc042f040 (4253 kB)

[ 0.000000] .init : 0xc0430000 - 0xc0456640 ( 154 kB)

[ 0.000000] .data : 0xc0458000 - 0xc0485dc0 ( 184 kB)

[ 0.000000] .bss : 0xc0485de4 - 0xc049d734 ( 95 kB)

[ 0.000000] Preemptible hierarchical RCU implementation.

[ 0.000000] Verbose stalled-CPUs detection is disabled.

[ 0.000000] NR_IRQS:128

[ 0.000000] xlnx,ps7-ttc-1.00.a #0 at 0xe0800000, irq=43

[ 0.000000] Console: colour dummy device 80x30

[ 0.000000] Calibrating delay loop... 1332.01 BogoMIPS (lpj=6660096)

[ 0.090000] pid_max: default: 32768 minimum: 301

[ 0.090000] Mount-cache hash table entries: 512

[ 0.090000] CPU: Testing write buffer coherency: ok

[ 0.100000] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000

[ 0.100000] smp_twd: clock not found: -2

[ 0.110000] Calibrating local timer... 333.57MHz.

[ 0.170000] hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available

[ 0.170000] Setting up static identity map for 0x2f8d48 - 0x2f8d7c

[ 0.270000] CPU1: Booted secondary processor

[ 0.360000] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001

[ 0.360000] Brought up 2 CPUs

[ 0.360000] SMP: Total of 2 processors activated (2664.03 BogoMIPS).

[ 0.370000] devtmpfs: initialized

[ 0.370000] ------------[ cut here ]------------

[ 0.380000] WARNING: at arch/arm/mm/dma-mapping.c:198 consistent_init+0x70/0x104()

[ 0.380000] Modules linked in:

[ 0.390000] [<c0012920>] (unwind_backtrace+0x0/0xe0) from [<c001e924>] (warn_slowpath_common+0x4c/0x64)

[ 0.400000] [<c001e924>] (warn_slowpath_common+0x4c/0x64) from [<c001e954>] (warn_slowpath_null+0x18/0x1c)

[ 0.410000] [<c001e954>] (warn_slowpath_null+0x18/0x1c) from [<c04345a8>] (consistent_init+0x70/0x104)

[ 0.420000] [<c04345a8>] (consistent_init+0x70/0x104) from [<c000858c>] (do_one_initcall+0x90/0x160)

[ 0.420000] [<c000858c>] (do_one_initcall+0x90/0x160) from [<c043085c>] (kernel_init+0x84/0x128)

[ 0.430000] [<c043085c>] (kernel_init+0x84/0x128) from [<c000dfcc>] (kernel_thread_exit+0x0/0x8)

[ 0.440000] ---[ end trace 1b75b31a2719ed1c ]---

[ 0.450000] ------------[ cut here ]------------

[ 0.450000] WARNING: at arch/arm/mm/dma-mapping.c:198 consistent_init+0x70/0x104()

[ 0.460000] Modules linked in:

[ 0.460000] [<c0012920>] (unwind_backtrace+0x0/0xe0) from [<c001e924>] (warn_slowpath_common+0x4c/0x64)

[ 0.470000] [<c001e924>] (warn_slowpath_common+0x4c/0x64) from [<c001e954>] (warn_slowpath_null+0x18/0x1c)

[ 0.480000] [<c001e954>] (warn_slowpath_null+0x18/0x1c) from [<c04345a8>] (consistent_init+0x70/0x104)

[ 0.490000] [<c04345a8>] (consistent_init+0x70/0x104) from [<c000858c>] (do_one_initcall+0x90/0x160)

[ 0.500000] [<c000858c>] (do_one_initcall+0x90/0x160) from [<c043085c>] (kernel_init+0x84/0x128)

[ 0.510000] [<c043085c>] (kernel_init+0x84/0x128) from [<c000dfcc>] (kernel_thread_exit+0x0/0x8)

[ 0.520000] ---[ end trace 1b75b31a2719ed1d ]---

[ 0.520000] NET: Registered protocol family 16

[ 0.540000] L310 cache controller enabled

[ 0.540000] l2x0: 8 ways, CACHE_ID 0x410000c8, AUX_CTRL 0x72360000, Cache size: 524288 B

[ 0.550000] registering platform device 'pl330' id 0

[ 0.550000] registering platform device 'arm-pmu' id 0

[ 0.560000]

[ 0.560000] ###############################################

[ 0.560000] # #

[ 0.570000] # Board ZED Init #

[ 0.570000] # #

[ 0.580000] ###############################################

[ 0.580000]

[ 0.590000] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.

[ 0.590000] hw-breakpoint: maximum watchpoint size is 4 bytes.

[ 0.620000] xslcr xslcr.0: at 0xF8000000 mapped to 0xE0808000

[ 0.640000] bio: create slab <bio-0> at 0

[ 0.640000] gpiochip_add: registered GPIOs 0 to 245 on device: xgpiops

[ 0.650000] xgpiops e000a000.ps7-gpio: gpio at 0xe000a000 mapped to 0xe080a000

[ 0.650000] SCSI subsystem initialized

[ 0.660000] usbcore: registered new interface driver usbfs

[ 0.660000] usbcore: registered new interface driver hub

[ 0.670000] usbcore: registered new device driver usb

[ 0.670000] Advanced Linux Sound Architecture Driver Version 1.0.24.

[ 0.680000] Switching to clocksource xttcpss_timer1

[ 0.690000] NET: Registered protocol family 2

[ 0.690000] IP route cache hash table entries: 4096 (order: 2, 16384 bytes)

[ 0.700000] TCP established hash table entries: 16384 (order: 5, 131072 bytes)

[ 0.700000] TCP bind hash table entries: 16384 (order: 5, 196608 bytes)

[ 0.710000] TCP: Hash tables configured (established 16384 bind 16384)

[ 0.720000] TCP reno registered

[ 0.720000] UDP hash table entries: 256 (order: 1, 8192 bytes)

[ 0.730000] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)

[ 0.730000] NET: Registered protocol family 1

[ 0.740000] Trying to unpack rootfs image as initramfs...

[ 0.740000] rootfs image is not initramfs (no cpio magic); looks like an initrd

[ 0.780000] Freeing initrd memory: 8192K

[ 0.780000] xscugtimer xscugtimer.0: ioremap fe00c200 to e080c200 with size 400

[ 0.790000] pl330 dev 0 probe success

[ 0.800000] msgmni has been set to 972

[ 0.800000] io scheduler noop registered

[ 0.800000] io scheduler deadline registered

[ 0.800000] io scheduler cfq registered (default)

[ 0.810000] e0001?俽聮倐倐console [ttyPS0] enabled, bootconsole disabled

[ 0.820000] console [ttyPS0] enabled, bootconsole disabled

[ 0.820000] xdevcfg f8007000.ps7-dev-cfg: ioremap f8007000 to e0810000 with size 1000

[ 0.840000] [drm] Initialized drm 1.1.0 20060810

[ 0.850000] brd: module loaded

[ 0.860000] loop: module loaded

[ 0.860000] xqspips e000d000.ps7-qspi: at 0xE000D000 mapped to 0xE0812000, irq=51

[ 0.870000] GEM: BASEADDRESS hw: e000b000 virt: e0814000

[ 0.880000] XEMACPS mii bus: probed

[ 0.880000] eth0, pdev->id -1, baseaddr 0xe000b000, irq 54

[ 0.890000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver

[ 0.890000] usb_hcd_xusbps_probe: No OTG assigned!

[ 0.900000] usb_hcd_xusbps_probe: OTG now assigned!

[ 0.900000] xusbps-ehci xusbps-ehci.0: Xilinx PS USB EHCI Host Controller

[ 0.910000] xusbps-ehci xusbps-ehci.0: new USB bus registered, assigned bus number 1

[ 0.950000] xusbps-ehci xusbps-ehci.0: irq 53, io mem 0x00000000

[ 0.970000] xusbps-ehci xusbps-ehci.0: USB 2.0 started, EHCI 1.00

[ 0.970000] hub 1-0:1.0: USB hub found

[ 0.980000] hub 1-0:1.0: 1 port detected

[ 0.980000] Initializing USB Mass Storage driver...

[ 0.980000] usbcore: registered new interface driver usb-storage

[ 0.990000] USB Mass Storage support registered.

[ 1.000000] Xilinx PS USB Device Controller driver (Apr 01, 2011)

[ 1.000000] mousedev: PS/2 mouse device common for all mice

[ 1.010000] Linux video capture interface: v2.00

[ 1.010000] gspca_main: v2.14.0 registered

[ 1.020000] usbcore: registered new interface driver uvcvideo

[ 1.020000] USB Video Class driver (1.1.1)

[ 1.030000] sdhci: Secure Digital Host Controller Interface driver

[ 1.030000] No connectors reported connected with modes

[ 1.030000] [drm] Cannot find any crtc or sizes - going 1024x768

[ 1.040000] drivers/gpu/drm/analog/analog_drm_fbdev.c:analog_drm_fbdev_probe[241]

[ 1.050000] sdhci: Copyright(c) Pierre Ossman

[ 1.050000] sdhci-pltfm: SDHCI platform and OF driver helper

[ 1.070000] usbcore: registered new interface driver usbhid

[ 1.070000] usbhid: USB HID core driver

[ 1.070000] adv7511 0-0039: Failed to add route DAI IN->TMDS

[ 1.090000] Console: switching to colour frame buffer device 128x48

[ 1.090000] asoc: adv7511 <-> 75c00000.axi-spdif-tx mapping ok

[ 1.090000] axi-spdif 75c00000.axi-spdif-tx: Failed to set DAI format: -22

[ 1.100000] ALSA device list:

[ 1.100000] #0: HDMI monitor

[ 1.100000] TCP cubic registered

[ 1.100000] NET: Registered protocol family 17

[ 1.100000] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4

[ 1.100000] Registering SWP/SWPB emulation handler

[ 1.160000] fb0: frame buffer device

[ 1.160000] drm: registered panic notifier

[ 1.160000] registered taskstats version 1

[ 1.160000] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)

[ 1.180000] RAMDISK: gzip image found at block 00110530 on minor 0

[ 1.490000] EXT4-fs (ram0): couldn't mount as ext3 due to feature incompatibilities

[ 1.560000] EXT4-fs (ram0): mounting ext2 file system using the ext4 subsystem

[ 1.560000] EXT4-fs (ram0): warning: mounting unchecked fs, running e2fsck is recommended

[ 1.570000] EXT4-fs (ram0): mounted filesystem without journal. Opts: (null)

[ 1.580000] VFS: Mounted root (ext2 filesystem) on device 1:0.

[ 1.580000] devtmpfs: mounted

[ 1.590000] Freeing init memory: 152K

Starting rcS...

++ Mounting filesystem

++ Setting up mdev

++ Configure static IP 192.168.1.10

[ 1.800000] GEM: lp->tx_bd ffdfb000 lp->tx_bd_dma 18fd8000 lp->tx_skb d82011c0

[ 1.800000] GEM: lp->rx_bd ffdfc000 lp->rx_bd_dma 18fd9000 lp->rx_skb d82012c0

[ 1.810000] GEM: MAC 0x00350a00, 0x00002201, 00:0a:35:00:01:22

[ 1.820000] GEM: phydev d8b83800, phydev->phy_id 0x1410dd1, phydev->addr 0x0

[ 1.830000] eth0, phy_addr 0x0, phy_id 0x01410dd1

[ 1.830000] eth0, attach [Marvell 88E1510] phy driver

++ Starting telnet daemon

++ Starting http daemon

++ Starting ftp daemon

++ Starting dropbear (ssh) daemon

++ Starting OLED Display

[ 1.880000] pmodoled-gpio-spi [zed_oled] SPI Probing

++ Exporting LEDs & SWs

rcS Complete

zynq>

以下介绍一下生成Linux应用，并且在ZedBooard执行：

在EDK中打开配置完的系统，然后点击Export Design打开SDK，如图2所示，选择Include bitstream and BMM file

图2

在SDK中新建xilinx c project，如图3所示。

图3

Target Software中选择Linux，则可以生成基于Linux的应用工程，选择Linux Hello World模板工程。

图4

修改Helloworld.c中代码，如下：

#include <stdio.h>

int main()

{

printf("ZedBoard Test! - Hoki 2013.02.26\n");

return 0;

}

图5

然后通过网口终端连接ZedBoard，首先需要将PC本地网卡IP修改为与ZedBoard同一段，通过ifconfig查看ZedBoard的IP为192.168.1.10，将PC的IP设置为192.168.1.11，如图6，连上网口，成功连接。

图6

通过FTP上传生成的.eif文件，并且执行，成功打印出信息，如图7所示，在第一次执行程序是被告知/bin/sh: ./linux_hello_world_0.elf: Permission denied，在网上搜索了些解决方法，是文件权限不够，先用chmod命令改变文件权限，然后.eif文件可正确执行了。

图7