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トップ > FPGA > Zybo Z7-20でPetalinux2019をビルドして動かす(2) ~Petalinuxのビルドと実行~

Zybo Z7-20でPetalinux2019をビルドして動かす(2) ~Petalinuxのビルドと実行~

FPGA 電子工作 プログラミング

これは前回のPetalinuxをダウンロードするの続きです．Petalinux2019をインストールした状態にしておいてください．

前回の記事はこちら

fumimaker.net

前回の忘れ物ですが，Xilinxに統計データを送信したくなければ以下を実行します．

petalinux-util --webtalk off

vivadoでPSだけのプロジェクトを作る

まずはZybo Z7-20のボードファイルを指定して適宜プロジェクトを作ります．ブロックデザインを作って，Add IPからZynqを選択します．

f:id:fumimaker:20201001002314p:plain
プロジェクトを作る

クロック配線

次にクロックを配線します．

f:id:fumimaker:20201001002323p:plain
クロックを配線する

PSの設定をする

PSをダブルクリックして設定を開き，PeripheralからEthernet0の設定を確認します．MDIOがMIOになっていることを確認してください，バージョンによってはEMIOになっていることもあるそうなのでその場合はMIOを選択して緑色にする必要があります．

f:id:fumimaker:20201001002331p:plain
Ethernet0ヨシ！
f:id:fumimaker:20201001002336p:plain
MDIOヨシ！

クロックの設定をする

私はこのせいで5日くらいハマっていました．なんで誰も教えてくれなかったんだ（憤怒）Clock ConfigからIO Peripheral Clockを選択し，Ethernet0のClockがIO PLLになっていることを必ず確認します．私のバージョンではなぜかデフォルトでExternalになっており，Ethernet0がつかえずはまりました．Speedは1000Mbpsで良いと思います．終わったらOKを押します． デザインを右クリックからCreate HDLします．

f:id:fumimaker:20201001003513p:plain
Create HDL

Bitstreamを生成します．

f:id:fumimaker:20201001003542p:plain
Bitstream

エクスポート

終わったらFile-Export Hardwareしておきましょう．必ずInclude Bitstreamしてください．

f:id:fumimaker:20201001004027p:plain
Export
f:id:fumimaker:20201001004057p:plain
Includeすること

プロジェクトを作る

cd ~/peta
petalinux-create --type project --template zynq --name firstProject

Petalinuxに戻ります．—nameの後にプロジェクトの名前をつけることができます．今回はfirstProjectという名前にしてます．ここでエラーが出る場合はPetalinuxの設定の読み込みができていないと思うので前回後半のsource settings.shしているところをもう一度確認してください．

プロジェクトの設定をする

設定の前にVivadoの方でPSのみのプロジェクトを作ってハードウェアをビットストリーム入りで出力して.xsaファイルを生成しておきましょう．私はWindowsでやっているのでGithubからリポジトリをそのまま落として~/petaにおいておきました．PSのみのプロジェクトの作り方についてはこちらが参考になります．ハードウェアをエクスポートするの項までやればOKです．（此の方とやっていることはバージョン違いであんまりなくて恐縮です）

https://qiita.com/iwatake2222/items/24a8a94741fdbb80f62a

私はこの記事用にリポジトリつくったのでこれをクローンしてもらっても構いませんし，自分で作っていただいても構いません．

cd ~/peta
git clone https://github.com/fumimaker/PS_Zybo.git

Configする

cd ~/peta/firstProject
petalinux-config --get-hw-description=~/peta/PS_Zybo

ここで注意なのが，--get-hw-description=のところでスペースを入れないことです．Tab補完は聞きませんがこのままやるしかないです．スペース開けると補完が効くのでそれで--get-hw-description= ~/peta/PS_Zyboとやっていたところ4時間くらいはまりました．

ちなみにスペースを開けてしまうとこのようになります．

fumi@ubuntu:~/peta$ petalinux-config --get-hw-description= ~/peta/PS_Zybo
ERROR: Failed to locate the Vivado export to SDK directory, please make sure the directory directory exists!
Configures the project or the specified component with menuconfig.

Usage:
  petalinux-config [options] {--component <COMPONENT> |--get-hw-description[=SRC]}

Options:
  -h, --help                      show function usage
  -p, --project <PROJECT>         path to PetaLinux SDK project.
                                  default is the working project
  --silentconfig              takes the default configuration and skips the GUI.
  -c, --component <COMPONENT>     Specify the component
                                  If no component is specified, it will do
                                  top level project configuration .
                                  If you specify a component,it will
                                  configure it with menuconfig and saves
                                  user's config fragments in meta-user.
                                  E.g. -c rootfs, -c busybox
  --get-hw-description [SRC]      get hardware description.
                                  if [SRC] is specified, look in that
                                  location for an Vivado export to SDK directory.
                                  Otherwise, this MUST be run from
                                  WITHIN the vivado export to SDK directory.
  --defconfig [DEFCONFIG_TARGET]  defconfig the specified component.
                                  It applies to kernel and u-boot.
  -v, --verbose                   verbose mode

Note: There is no validation for configurable components. User can provide
      any component, bitbake will throw error for invalid components.

fumi@ubuntu:~/peta$

スペースから読んでしまうみたいで，そんなExport成果物ねえぞって言われます．

Image packing Config—>Root filesystem—>SDなどを選択（Space）します．戻る時はExitで戻れます．

Yocto Settings -> Enable Debug Tweaks を有効にする (Spaceキーを押す)

続いてRoot filesystemにExt4を追加します，他のバージョンだとExt4があるようなのですがなぜかこのバージョンでは消えているので自分で追加してあげます．（これないと後で困りました）

終わったらSaveしてExitします．すると設定が実行されます．

f:id:fumimaker:20201001005956p:plain
configの様子

f:id:fumimaker:20201001010106p:plain
SDを選択

f:id:fumimaker:20201001010228p:plain
これを編集

f:id:fumimaker:20201001010251p:plain
ext4を追加

ビルドをする

ようやくビルドです．

petalinux-build

これだけでビルドを始めてくれます．ビルド結果を以下に示します．

fumi@ubuntu:~/peta/secondprj$ petalinux-build 
[INFO] building project
[INFO] sourcing bitbake
[INFO] generating user layers
[INFO] generating workspace directory
INFO: bitbake petalinux-user-image
Loading cache: 100% |############################################| Time: 0:00:01
Loaded 3979 entries from dependency cache.
Parsing recipes: 100% |##########################################| Time: 0:00:04
Parsing of 2893 .bb files complete (2891 cached, 2 parsed). 3980 targets, 169 skipped, 0 masked, 0 errors.
NOTE: Resolving any missing task queue dependencies
Initialising tasks: 100% |#######################################| Time: 0:00:04
Checking sstate mirror object availability: 100% |###############| Time: 0:00:03
Sstate summary: Wanted 115 Found 13 Missed 204 Current 790 (11% match, 88% complete)
NOTE: Executing SetScene Tasks
NOTE: Executing RunQueue Tasks
NOTE: Tasks Summary: Attempted 3267 tasks of which 3253 didn't need to be rerun and all succeeded.
INFO: Copying Images from deploy to images
NOTE: Failed to copy built images to tftp dir: /tftpboot 
[INFO] successfully built project

無事に完了したみたいです．

パッケージ化する

最後にパッケージ化をします．これをしないといつまで経ってもSDカードに書き込むファイルが生成されません．恥ずかしい話ですが，Buildだけしてファイルが生成されず，数時間困っていました．

fumi@ubuntu:~/peta/firstProject$ petalinux-package --boot --force --fsbl images/linux/zynq_fsbl.elf --fpga images/linux/system.bit --u-boot
INFO: File in BOOT BIN: "/home/fumi/peta/firstProject/images/linux/zynq_fsbl.elf"
INFO: File in BOOT BIN: "/home/fumi/peta/firstProject/images/linux/system.bit"
INFO: File in BOOT BIN: "/home/fumi/peta/firstProject/images/linux/u-boot.elf"
INFO: Generating Zynq binary package BOOT.BIN...


****** Xilinx Bootgen v2019.2
  **** Build date : Oct 23 2019-22:59:42
    ** Copyright 1986-2019 Xilinx, Inc. All Rights Reserved.

INFO: Binary is ready.
WARNING: Unable to access the TFTPBOOT folder /tftpboot!!!
WARNING: Skip file copy to TFTPBOOT folder!!!
fumi@ubuntu:~/peta/firstProject$

最後にWARNINGが出ていますが，今回はTFTPBOOT使わないので無視して問題ありません．

SDカードのパーティションを作る

Raspi同様にFAT32とEXT4のパーティションを作る必要があります．ディスクユーティリティ？からSDカードの設定を行いましょう．リファレンスによるとFAT32は500MB以上の領域が必要とのこと．写真のように作りました．名前は適当にBOOTとSystemとかにしておきました．

f:id:fumimaker:20201002003258p:plain
FAT32とEXT4を作る

SDカードを焼く

FAT32のブート用領域には普通にD&DとかCPコマンドで~/peta/firstProject/images/linux/にある成果物のBOOT.binとimage.ubをコピーします．u-boot.binではなくBOOT.binです．これだけでOKです． 追記 Petalinux2019以降？からコレに加えてboot.scrもコピーする必要があります。古い情報が各所にあるので注意。

次にEXT4のSystemを焼いていきます．こちらはコピーではなくでDDコマンドなどで焼く必要があります．

さっきのディスクユーティリティでSDカードのEXT4部分のデバイス名を覚えておきましょう，自分の場合は/dev/sdb2でした．これはそれぞれ環境によって違うので必ず自分のものと置き換えてください．なお，これを間違えるとHDDを飛ばしたり上書きしたりすることがあります．必ずあっていることを確認して実行してください．

ddコマンドでroofs.ext4をEXT4パーティションに書き込みます．rootfs.ext4がない場合はpetalinux-configが間違ってる可能性があるので前回の記事をもう一度見てきてください．

sudo dd if=images/linux/rootfs.ext4 of=/dev/sdb2
sync
sudo resize2fs /dev/sdb2 `
sync

resize2fsではSDカードのサイズを大きくしています．

起動する

これでOKです．SDカードを外してZyboに挿してジャンパJP5をSDにして給電してみましょう．Terminalで115200bpsで開くと起動ログが出てくるはずです．DoneのLEDが光ってない場合はなにかしらの理由で起動ができていません．Petalinux設定が間違ってるか，SDカードに焼けていないか，パーティションが違うかなど色々考えられます．

U-Boot 2019.01 (Sep 28 2020 - 07:49:57 +0000) Xilinx Zynq ZC702

CPU:   Zynq 7z020
Silicon: v3.1
DRAM:  ECC disabled 1 GiB
MMC:   mmc@e0100000: 0
Loading Environment from SPI Flash... SF: Detected s25fl128s_64k with page size 256 Bytes, erase size 64 KiB, total 16 MiB
*** Warning - bad CRC, using default environment

In:    serial@e0001000
Out:   serial@e0001000
Err:   serial@e0001000
Net:   ZYNQ GEM: e000b000, phyaddr ffffffff, interface rgmii-id
eth0: ethernet@e000b000
U-BOOT for secondprj

ethernet@e000b000 Waiting for PHY auto negotiation to complete........ done
BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
BOOTP broadcast 4
DHCP client bound to address 192.168.1.87 (3258 ms)
Hit any key to stop autoboot:  0
Device: mmc@e0100000
Manufacturer ID: 27
OEM: 5048
Name: SD16G
Bus Speed: 50000000
Mode : SD High Speed (50MHz)
Rd Block Len: 512
SD version 3.0
High Capacity: Yes
Capacity: 14.5 GiB
Bus Width: 4-bit
Erase Group Size: 512 Bytes
4136836 bytes read in 237 ms (16.6 MiB/s)
## Loading kernel from FIT Image at 10000000 ...
   Using 'conf@system-top.dtb' configuration
   Verifying Hash Integrity ... OK
   Trying 'kernel@1' kernel subimage
     Description:  Linux kernel
     Type:         Kernel Image
     Compression:  uncompressed
     Data Start:   0x10000104
     Data Size:    4120992 Bytes = 3.9 MiB
     Architecture: ARM
     OS:           Linux
     Load Address: 0x00008000
     Entry Point:  0x00008000
     Hash algo:    sha1
     Hash value:   d42651b2186790796db30a686e318a8187e3cd0b
   Verifying Hash Integrity ... sha1+ OK
## Loading fdt from FIT Image at 10000000 ...
   Using 'conf@system-top.dtb' configuration
   Verifying Hash Integrity ... OK
   Trying 'fdt@system-top.dtb' fdt subimage
     Description:  Flattened Device Tree blob
     Type:         Flat Device Tree
     Compression:  uncompressed
     Data Start:   0x103ee3a4
     Data Size:    13933 Bytes = 13.6 KiB
     Architecture: ARM
     Hash algo:    sha1
     Hash value:   535f36b172892e0c0c520b67bf9428d6426bc69e
   Verifying Hash Integrity ... sha1+ OK
   Booting using the fdt blob at 0x103ee3a4
   Loading Kernel Image ... OK
   Loading Device Tree to 07ff9000, end 07fff66c ... OK

Starting kernel ...

Booting Linux on physical CPU 0x0
Linux version 4.19.0-xilinx-v2019.2 (oe-user@oe-host) (gcc version 8.2.0 (GCC)) #1 SMP PREEMPT Sat Sep 26 10:58:08 UTC 2020
CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
OF: fdt: Machine model: xlnx,zynq-7000
earlycon: cdns0 at MMIO 0xe0001000 (options '115200n8')
bootconsole [cdns0] enabled
Memory policy: Data cache writealloc
cma: Reserved 16 MiB at 0x3f000000
random: get_random_bytes called from start_kernel+0x80/0x3c4 with crng_init=0
percpu: Embedded 16 pages/cpu @(ptrval) s35916 r8192 d21428 u65536
Built 1 zonelists, mobility grouping on.  Total pages: 260608
Kernel command line: console=ttyPS0,115200 earlycon root=/dev/mmcblk0p2 rw rootwait
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 1012964K/1048576K available (6144K kernel code, 204K rwdata, 1604K rodata, 1024K init, 132K bss, 19228K reserved, 16384K cma-reserved, 245760K highmem)
Virtual kernel memory layout:
    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
    fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
    vmalloc : 0xf0800000 - 0xff800000   ( 240 MB)
    lowmem  : 0xc0000000 - 0xf0000000   ( 768 MB)
    pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
    modules : 0xbf000000 - 0xbfe00000   (  14 MB)
      .text : 0x(ptrval) - 0x(ptrval)   (7136 kB)
      .init : 0x(ptrval) - 0x(ptrval)   (1024 kB)
      .data : 0x(ptrval) - 0x(ptrval)   ( 205 kB)
       .bss : 0x(ptrval) - 0x(ptrval)   ( 133 kB)
rcu: Preemptible hierarchical RCU implementation.
rcu:    RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
        Tasks RCU enabled.
rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
efuse mapped to (ptrval)
slcr mapped to (ptrval)
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 (ptrval)
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 (ptrval), 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: 2048 (order: 1, 8192 bytes)
Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
CPU: Testing write buffer coherency: ok
CPU0: Spectre v2: using BPIALL workaround
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x100000 - 0x100060
rcu: Hierarchical SRCU implementation.
smp: Bringing up secondary CPUs ...
CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
CPU1: Spectre v2: using BPIALL workaround
smp: Brought up 1 node, 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
futex hash table entries: 512 (order: 3, 32768 bytes)
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor menu
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 @ 0x(ptrval)
zynq-pinctrl 700.pinctrl: zynq pinctrl initialized
e0001000.serial: ttyPS0 at MMIO 0xe0001000 (irq = 25, base_baud = 6249999) is a xuartps
console [ttyPS0] enabled
console [ttyPS0] enabled
bootconsole [cdns0] disabled
bootconsole [cdns0] disabled
vgaarb: loaded
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
videodev: 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
FPGA manager framework
Advanced Linux Sound Architecture Driver Initialized.
clocksource: Switched to clocksource arm_global_timer
NET: Registered protocol family 2
tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
TCP established hash table entries: 8192 (order: 3, 32768 bytes)
TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
UDP hash table entries: 512 (order: 2, 16384 bytes)
UDP-Lite hash table entries: 512 (order: 2, 16384 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.
hw perfevents: no interrupt-affinity property for /pmu@f8891000, guessing.
hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
workingset: timestamp_bits=30 max_order=18 bucket_order=0
jffs2: version 2.2. (NAND) (SUMMARY)  c 2001-2006 Red Hat, Inc.
bounce: pool size: 64 pages
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
io scheduler mq-deadline registered
io scheduler kyber registered
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
brd: module loaded
loop: module loaded
m25p80 spi0.0: found s25fl128s, expected n25q512a
m25p80 spi0.0: s25fl128s (16384 Kbytes)
4 fixed-partitions partitions found on MTD device spi0.0
Creating 4 MTD partitions on "spi0.0":
0x000000000000-0x000000500000 : "boot"
0x000000500000-0x000000520000 : "bootenv"
0x000000520000-0x000000fa0000 : "kernel"
0x000000fa0000-0x000001000000 : "spare"
libphy: Fixed MDIO Bus: probed
CAN device driver interface
libphy: MACB_mii_bus: probed
RTL8211E Gigabit Ethernet e000b000.ethernet-ffffffff:00: attached PHY driver [RTL8211E Gigabit Ethernet] (mii_bus:phy_addr=e000b000.ethernet-ffffffff:00, irq=POLL)
macb e000b000.ethernet eth0: Cadence GEM rev 0x00020118 at 0xe000b000 irq 27 (00:0a:35:00:1e:53)
e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
usbcore: registered new interface driver usb-storage
i2c /dev entries driver
cdns-wdt f8005000.watchdog: Xilinx Watchdog Timer with timeout 10s
EDAC MC: ECC not enabled
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.mmc [e0100000.mmc] using ADMA
ledtrig-cpu: registered to indicate activity on CPUs
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
fpga_manager fpga0: Xilinx Zynq FPGA Manager registered
NET: Registered protocol family 10
Segment Routing with IPv6
sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
can: controller area network core (rev 20170425 abi 9)
NET: Registered protocol family 29
can: raw protocol (rev 20170425)
can: broadcast manager protocol (rev 20170425 t)
can: netlink gateway (rev 20170425) max_hops=1
Registering SWP/SWPB emulation handler
of-fpga-region fpga-full: FPGA Region probed
hctosys: unable to open rtc device (rtc0)
of_cfs_init
of_cfs_init: OK
ALSA device list:
  No soundcards found.
Waiting for root device /dev/mmcblk0p2...
mmc0: new high speed SDHC card at address 0007
mmcblk0: mmc0:0007 SD16G 14.5 GiB
 mmcblk0: p1 p2
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: 1024K
Run /sbin/init as init process

INIT: version 2.88 booting

random: fast init done
Starting udev
udevd[729]: starting version 3.2.5
random: udevd: uninitialized urandom read (16 bytes read)
random: udevd: uninitialized urandom read (16 bytes read)
random: udevd: uninitialized urandom read (16 bytes read)
udevd[730]: starting eudev-3.2.5
FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
hwclock: can't open '/dev/misc/rtc': No such file or directory

Mon Sep 28 07:51:05 UTC 2020

hwclock: can't open '/dev/misc/rtc': No such file or directory

urandom_read: 2 callbacks suppressed
random: dd: uninitialized urandom read (512 bytes read)

INIT: Entering runlevel: 5


Configuring network interfaces... IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
udhcpc: started, v1.29.2

udhcpc: sending discover

udhcpc: sending discover

macb e000b000.ethernet eth0: link up (1000/Full)
IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
udhcpc: sending discover

udhcpc: sending select for 192.168.1.87

udhcpc: lease of 192.168.1.87 obtained, lease time 86400

/etc/udhcpc.d/50default: Adding DNS 192.168.1.1

done.

Starting haveged: haveged: listening socket at 3

haveged: haveged starting up






Starting Dropbear SSH server: random: dropbear: uninitialized urandom read (32 bytes read)
dropbear.

hwclock: can't open '/dev/misc/rtc': No such file or directory

Starting internet superserver: inetd.

Starting syslogd/klogd: done

Starting tcf-agent: OK

/bin/autologin: line 1: -e: command not found
Last login: Mon Sep 28 07:51:13 UTC 2020 on tty1
root@secondprj:~# random: crng init done

root@secondprj:~#

Ethernetを指しているのでちゃんと

ethernet@e000b000 Waiting for PHY auto negotiation to complete........ done
BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
BOOTP broadcast 4
DHCP client bound to address 192.168.1.87 (3258 ms)

というようにDHCPでIPを拾ってくれてます．

動作確認

一応動いてることを確認します．普通はDRAMに全て展開されて電源を切るとやったことが全て消えますが，今回はSDカードを使ってやったことが記録されるようにPetalinux-configしておきました．なので何か操作しても消えないことを確認しておきます．

root@secondprj:~# touch helloWorld
root@secondprj:~# ls
helloWorld
root@secondprj:~# reboot
root@secondprj:~# ls
helloWorld
root@secondprj:~#

Reboot後でもちゃんと残ってますね．大丈夫そうです．

まとめ

よかったです，ここまで大変でした，落とし穴が多すぎます．2019になってから先行してやられている方の通り行かなくて困ることが非常に多かったです．何か参考になれば幸いです．

トラブルシューティング

色々なエラーに遭遇したので個々にメモしておきます。

boot.scrがない

BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
BOOTP broadcast 4
DHCP client bound to address 203.178.128.236 (1764 ms)
*** Warning: no boot file name; using 'CBB280EC.img'
Using ethernet@e000b000 device
TFTP from server 203.178.142.134; our IP address is 203.178.128.236; sending through gateway 203.178.128.1
Filename 'CBB280EC.img'.
Load address: 0x0
Loading: T T T T T T T T T T
Retry count exceeded; starting again
missing environment variable: pxeuuid
missing environment variable: bootfile
Retrieving file: pxelinux.cfg/01-00-0a-35-00-1e-53
Using ethernet@e000b000 device
TFTP from server 203.178.142.134; our IP address is 203.178.128.236; sending through gateway 203.178.128.1
Filename 'pxelinux.cfg/01-00-0a-35-00-1e-53'.
Load address: 0x2000000
Loading: T T T T T T T T T T
Retry count exceeded; starting again
missing environment variable: bootfile
Retrieving file: pxelinux.cfg/CBB280EC
Using ethernet@e000b000 device
TFTP from server 203.178.142.134; our IP address is 203.178.128.236; sending through gateway 203.178.128.1
Filename 'pxelinux.cfg/CBB280EC'.
Load address: 0x2000000
Loading: T T T T T T T T T T
Retry count exceeded; starting again
missing environment variable: bootfile
Retrieving file: pxelinux.cfg/CBB280E
Using ethernet@e000b000 device
TFTP from server 203.178.142.134; our IP address is 203.178.128.236; sending through gateway 203.178.128.1
Filename 'pxelinux.cfg/CBB280E'.
Load address: 0x2000000
Loading: T T T T T T T T T T
Retry count exceeded; starting again
missing environment variable: bootfile
Retrieving file: pxelinux.cfg/CBB280
Using ethernet@e000b000 device
TFTP from server 203.178.142.134; our IP address is 203.178.128.236; sending through gateway 203.178.128.1
Filename 'pxelinux.cfg/CBB280'.
Load address: 0x2000000
Loading: T T T T T T T T T T

このようにLoadingを繰り返している。 途中で追記をしましたが、Petalinux2019かPetalinux2020くらいからFAT32の領域にboot.bin, image.ubに加えてboot.scrも必要になったみたいです。boot.binとかと同じ階層に生成されているので一緒にSDに入れてやると動きます。

rootfsがおかしい

emory: 1010892K/1048576K available (6144K kernel code, 224K rwdata, 1836K rodata, 1024K init, 131K bss, 21300K reserved, 16384K cma-reserved, 245760K highmem)
rcu: Preemptible hierarchical RCU implementation.
rcu:    RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
        Tasks RCU enabled.
rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
efuse mapped to (ptrval)
slcr mapped to (ptrval)
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
random: get_random_bytes called from start_kernel+0x260/0x440 with crng_init=0
zynq_clock_init: clkc starts at (ptrval)
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
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: 2048 (order: 1, 8192 bytes, linear)
Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
CPU: Testing write buffer coherency: ok
CPU0: Spectre v2: using BPIALL workaround
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x100000 - 0x100060
rcu: Hierarchical SRCU implementation.
smp: Bringing up secondary CPUs ...
CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
CPU1: Spectre v2: using BPIALL workaround
smp: Brought up 1 node, 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
futex hash table entries: 512 (order: 3, 32768 bytes, linear)
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor menu
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 @ 0x(ptrval)
e0001000.serial: ttyPS0 at MMIO 0xe0001000 (irq = 24, base_baud = 6249999) is a xuartps
printk: console [ttyPS0] enabled
printk: console [ttyPS0] enabled
printk: bootconsole [cdns0] disabled
printk: bootconsole [cdns0] disabled
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
mc: Linux media interface: v0.10
videodev: 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
FPGA manager framework
Advanced Linux Sound Architecture Driver Initialized.
clocksource: Switched to clocksource arm_global_timer
thermal_sys: Registered thermal governor 'step_wise'
NET: Registered protocol family 2
tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
TCP bind hash table entries: 8192 (order: 4, 65536 bytes, linear)
TCP: Hash tables configured (established 8192 bind 8192)
UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
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.
PCI: CLS 0 bytes, default 64
hw perfevents: no interrupt-affinity property for /pmu@f8891000, guessing.
hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
workingset: timestamp_bits=14 max_order=18 bucket_order=4
jffs2: version 2.2. (NAND) (SUMMARY)  c 2001-2006 Red Hat, Inc.
bounce: pool size: 64 pages
io scheduler mq-deadline registered
io scheduler kyber registered
zynq-pinctrl 700.pinctrl: zynq pinctrl initialized
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
brd: module loaded
loop: module loaded
spi_master spi0: cannot find modalias for /amba/spi@e000d000/flash@0
spi_master spi0: Failed to create SPI device for /amba/spi@e000d000/flash@0
libphy: Fixed MDIO Bus: probed
CAN device driver interface
libphy: MACB_mii_bus: probed
RTL8211E Gigabit Ethernet e000b000.ethernet-ffffffff:00: attached PHY driver [RTL8211E Gigabit Ethernet] (mii_bus:phy_addr=e000b000.ethernet-ffffffff:00, irq=POLL)
macb e000b000.ethernet eth0: Cadence GEM rev 0x00020118 at 0xe000b000 irq 26 (00:0a:35:00:1e:53)
e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
usbcore: registered new interface driver usb-storage
i2c /dev entries driver
cdns-wdt f8005000.watchdog: Xilinx Watchdog Timer with timeout 10s
EDAC MC: ECC not enabled
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.mmc [e0100000.mmc] using ADMA
ledtrig-cpu: registered to indicate activity on CPUs
clocksource: ttc_clocksource: mask: 0xffff max_cycles: 0xffff, max_idle_ns: 537538477 ns
timer #0 at (ptrval), irq=39
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
fpga_manager fpga0: Xilinx Zynq FPGA Manager registered
NET: Registered protocol family 10
Segment Routing with IPv6
sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
can: controller area network core (rev 20170425 abi 9)
NET: Registered protocol family 29
can: raw protocol (rev 20170425)
can: broadcast manager protocol (rev 20170425 t)
can: netlink gateway (rev 20190810) max_hops=1
Registering SWP/SWPB emulation handler
of-fpga-region fpga-full: FPGA Region probed
hctosys: unable to open rtc device (rtc0)
of_cfs_init
of_cfs_init: OK
ALSA device list:
  No soundcards found.
MTD: MTD device with name "jffs2" not found
MTD: Couldn't look up 'mtd:jffs2': -2
VFS: Cannot open root device "mtd:jffs2" or unknown-block(0,0): error -2
mmc0: new high speed SDHC card at address aaaa
Please append a correct "root=" boot option; here are the available partitions:
mmcblk0: mmc0:aaaa SE32G 29.7 GiB
0100           16384 ram0
 (driver?)
0101           16384 ram1
 (driver?)
0102           16384 ram2
 (driver?)
0103           16384 ram3
 (driver?)
0104           16384 ram4
 (driver?)
0105           16384 ram5
 (driver?)
0106           16384 ram6
 (driver?)
 mmcblk0: p1 p2
0107           16384 ram7
 (driver?)
0108           16384 ram8
 (driver?)
0109           16384 ram9
 (driver?)
010a           16384 ram10
 (driver?)
010b           16384 ram11
 (driver?)
010c           16384 ram12
 (driver?)
010d           16384 ram13
 (driver?)
010e           16384 ram14
 (driver?)
010f           16384 ram15
 (driver?)
b300        31166976 mmcblk0
 driver: mmcblk
  b301          488448 mmcblk0p1 f00ace67-01

  b302        30676992 mmcblk0p2 f00ace67-02

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
CPU1: stopping
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-xilinx-v2020.3 #1
Hardware name: Xilinx Zynq Platform
[<c010e37c>] (unwind_backtrace) from [<c010a124>] (show_stack+0x10/0x14)
[<c010a124>] (show_stack) from [<c06a24e8>] (dump_stack+0xb4/0xd0)
[<c06a24e8>] (dump_stack) from [<c010c964>] (ipi_cpu_stop+0x3c/0x98)
[<c010c964>] (ipi_cpu_stop) from [<c010d1b0>] (handle_IPI+0x64/0x80)
[<c010d1b0>] (handle_IPI) from [<c033ec44>] (gic_handle_irq+0x84/0x90)
[<c033ec44>] (gic_handle_irq) from [<c0101a8c>] (__irq_svc+0x6c/0xa8)
Exception stack(0xef085f20 to 0xef085f68)
5f20: 00000000 00000000 2eca6000 ef6e5180 c0b2f504 00000000 ef6e4578 00000000
5f40: 61464267 61b30d7d 00000000 00000000 fffffff5 ef085f70 c052bcac c052bcd0
5f60: 60000013 ffffffff
[<c0101a8c>] (__irq_svc) from [<c052bcd0>] (cpuidle_enter_state+0xec/0x288)
[<c052bcd0>] (cpuidle_enter_state) from [<c052bea8>] (cpuidle_enter+0x28/0x38)
[<c052bea8>] (cpuidle_enter) from [<c01400ec>] (do_idle+0x230/0x258)
[<c01400ec>] (do_idle) from [<c0140278>] (cpu_startup_entry+0x18/0x1c)
[<c0140278>] (cpu_startup_entry) from [<0010242c>] (0x10242c)
---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]---
+ OK
## Loading fdt from FIT Image at 10000000 ...
   Using 'conf@system-top.dtb' configuration
   Verifying Hash Integrity ... OK
   Trying 'fdt@system-top.dtb' fdt subimage
     Description:  Flattened Device Tree blob
     Type:         Flat Device Tree
     Compression:  uncompressed
     Data Start:   0x10420ae4
     Data Size:    18889 Bytes = 18.4 KiB
     Architecture: ARM
     Hash algo:    sha256
     Hash value:   df2e98153f19191a3205b95574748927d5f5434c0c11b117d3a5e905f64a1ba6
   Verifying Hash Integrity ... sha256+ OK
   Booting using the fdt blob at 0x10420ae4
   Loading Kernel Image
   Loading Device Tree to 1fff8000, end 1ffff9c8 ... OK

Starting kernel ...

Booting Linux on physical CPU 0x0
Linux version 5.4.0-xilinx-v2020.3 (oe-user@oe-host) (gcc version 9.2.0 (GCC)) #1 SMP PREEMPT Mon Sep 6 09:52:47 UTC 2021
CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
OF: fdt: Machine model: xlnx,zynq-7000
earlycon: cdns0 at MMIO 0xe0001000 (options '115200n8')
printk: bootconsole [cdns0] enabled
Memory policy: Data cache writealloc
cma: Reserved 16 MiB at 0x3f000000
percpu: Embedded 15 pages/cpu s31948 r8192 d21300 u61440
Built 1 zonelists, mobility grouping on.  Total pages: 260416
Kernel command line: console=ttyPS0,115200 earlycon root=/dev/mmcblk0p2 rw rootwait
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
mem auto-init: stack:off, heap alloc:off, heap free:off
Memory: 1010892K/1048576K available (6144K kernel code, 224K rwdata, 1836K rodata, 1024K init, 131K bss, 21300K reserved, 16384K cma-reserved, 245760K highmem)
rcu: Preemptible hierarchical RCU implementation.
rcu:    RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
        Tasks RCU enabled.
rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
efuse mapped to (ptrval)
slcr mapped to (ptrval)
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
random: get_random_bytes called from start_kernel+0x260/0x440 with crng_init=0
zynq_clock_init: clkc starts at (ptrval)
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
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: 2048 (order: 1, 8192 bytes, linear)
Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
CPU: Testing write buffer coherency: ok
CPU0: Spectre v2: using BPIALL workaround
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x100000 - 0x100060
rcu: Hierarchical SRCU implementation.
smp: Bringing up secondary CPUs ...
CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
CPU1: Spectre v2: using BPIALL workaround
smp: Brought up 1 node, 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
futex hash table entries: 512 (order: 3, 32768 bytes, linear)
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor menu
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 @ 0x(ptrval)
e0001000.serial: ttyPS0 at MMIO 0xe0001000 (irq = 24, base_baud = 6249999) is a xuartps
printk: console [ttyPS0] enabled
printk: console [ttyPS0] enabled
printk: bootconsole [cdns0] disabled
printk: bootconsole [cdns0] disabled
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
mc: Linux media interface: v0.10
videodev: 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
FPGA manager framework
Advanced Linux Sound Architecture Driver Initialized.
clocksource: Switched to clocksource arm_global_timer
thermal_sys: Registered thermal governor 'step_wise'
NET: Registered protocol family 2
tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
TCP bind hash table entries: 8192 (order: 4, 65536 bytes, linear)
TCP: Hash tables configured (established 8192 bind 8192)
UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
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.
PCI: CLS 0 bytes, default 64
hw perfevents: no interrupt-affinity property for /pmu@f8891000, guessing.
hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
workingset: timestamp_bits=14 max_order=18 bucket_order=4
jffs2: version 2.2. (NAND) (SUMMARY)  c 2001-2006 Red Hat, Inc.
bounce: pool size: 64 pages
io scheduler mq-deadline registered
io scheduler kyber registered
zynq-pinctrl 700.pinctrl: zynq pinctrl initialized
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
brd: module loaded
loop: module loaded
spi_master spi0: cannot find modalias for /amba/spi@e000d000/flash@0
spi_master spi0: Failed to create SPI device for /amba/spi@e000d000/flash@0
libphy: Fixed MDIO Bus: probed
CAN device driver interface
libphy: MACB_mii_bus: probed
RTL8211E Gigabit Ethernet e000b000.ethernet-ffffffff:00: attached PHY driver [RTL8211E Gigabit Ethernet] (mii_bus:phy_addr=e000b000.ethernet-ffffffff:00, irq=POLL)
macb e000b000.ethernet eth0: Cadence GEM rev 0x00020118 at 0xe000b000 irq 26 (00:0a:35:00:1e:53)
e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
usbcore: registered new interface driver usb-storage
i2c /dev entries driver
cdns-wdt f8005000.watchdog: Xilinx Watchdog Timer with timeout 10s
EDAC MC: ECC not enabled
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.mmc [e0100000.mmc] using ADMA
ledtrig-cpu: registered to indicate activity on CPUs
clocksource: ttc_clocksource: mask: 0xffff max_cycles: 0xffff, max_idle_ns: 537538477 ns
timer #0 at (ptrval), irq=39
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
fpga_manager fpga0: Xilinx Zynq FPGA Manager registered
NET: Registered protocol family 10
Segment Routing with IPv6
sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
can: controller area network core (rev 20170425 abi 9)
NET: Registered protocol family 29
can: raw protocol (rev 20170425)
can: broadcast manager protocol (rev 20170425 t)
can: netlink gateway (rev 20190810) max_hops=1
Registering SWP/SWPB emulation handler
of-fpga-region fpga-full: FPGA Region probed
hctosys: unable to open rtc device (rtc0)
of_cfs_init
of_cfs_init: OK
ALSA device list:
  No soundcards found.
Waiting for root device /dev/mmcblk0p2...
mmc0: new high speed SDHC card at address aaaa
mmcblk0: mmc0:aaaa SE32G 29.7 GiB
 mmcblk0: p1 p2
EXT4-fs (mmcblk0p2): recovery complete
EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
VFS: Mounted root (ext4 filesystem) on device 179:2.
devtmpfs: error mounting -2
Freeing unused kernel memory: 1024K
Run /sbin/init as init process
Run /etc/init as init process
Run /bin/init as init process
Run /bin/sh as init process
Kernel panic - not syncing: No working init found.  Try passing init= option to kernel. See Linux Documentation/admin-guide/init.rst for guidance.
CPU1: stopping
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-xilinx-v2020.3 #1
Hardware name: Xilinx Zynq Platform
[<c010e37c>] (unwind_backtrace) from [<c010a124>] (show_stack+0x10/0x14)
[<c010a124>] (show_stack) from [<c06a24e8>] (dump_stack+0xb4/0xd0)
[<c06a24e8>] (dump_stack) from [<c010c964>] (ipi_cpu_stop+0x3c/0x98)
[<c010c964>] (ipi_cpu_stop) from [<c010d1b0>] (handle_IPI+0x64/0x80)
[<c010d1b0>] (handle_IPI) from [<c033ec44>] (gic_handle_irq+0x84/0x90)
[<c033ec44>] (gic_handle_irq) from [<c0101a8c>] (__irq_svc+0x6c/0xa8)
Exception stack(0xef085f20 to 0xef085f68)
5f20: 00000000 00000000 2eca6000 ef6e5180 c0b2f504 00000001 ef6e4578 00000000
5f40: 63adb7e5 6471c4d7 00000000 00000000 fffffff5 ef085f70 c052bcac c052bcd0
5f60: 60000013 ffffffff
[<c0101a8c>] (__irq_svc) from [<c052bcd0>] (cpuidle_enter_state+0xec/0x288)
[<c052bcd0>] (cpuidle_enter_state) from [<c052bea8>] (cpuidle_enter+0x28/0x38)
[<c052bea8>] (cpuidle_enter) from [<c01400ec>] (do_idle+0x230/0x258)
[<c01400ec>] (do_idle) from [<c0140278>] (cpu_startup_entry+0x18/0x1c)
[<c0140278>] (cpu_startup_entry) from [<0010242c>] (0x10242c)
---[ end Kernel panic - not syncing: No working init found.  Try passing init= option to kernel. See Linux Documentation/admin-guide/init.rst for guidance. ]---

rootfsがちゃんと焼けてなかったり、SDが壊れてたりパーティションが壊れてるとなるパニック。一度SDをフォーマットしたり、SDを変えたりしてDDで焼いて再度やると動く。 sudo dd if=images/linux/rootfs.ext4 of=/dev/sdc2(任意のSDの場所)で焼きましょう。