LS1021A 調試問題記錄

本人从事PPC/ARM  Linux/vxworks 开发多年，各类问题欢迎进群讨论：QQ群：245079182。

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板子最初u-boot环境变量

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=> printenv 

arch=arm

baudrate=115200

board=ls1021atwr

board_name=ls1021atwr

boot_a_script=load ${devtype} ${devnum}:${distro_bootpart} ${scriptaddr} ${prefix}${script}; env exists secureboot && load ${devtype} ${devnum}:${distro_bootpart} ${scripthdraddr} ${prefix}

boot_efi_binary=if fdt addr ${fdt_addr_r}; then bootefi bootmgr ${fdt_addr_r};else bootefi bootmgr ${fdtcontroladdr};fi;load ${devtype} ${devnum}:${distro_bootpart} ${kernel_addr_r} efi/boi

boot_extlinux=sysboot ${devtype} ${devnum}:${distro_bootpart} any ${scriptaddr} ${prefix}extlinux/extlinux.conf

boot_net_pci_enum=pci enum

boot_net_usb_start=usb start

boot_prefixes=/ /boot/

boot_script_dhcp=boot.scr.uimg

boot_script_hdr=hdr_ls1021atwr_bs.out

boot_scripts=ls1021atwr_boot.scr

boot_targets=mmc0 usb0 

bootargs=root=/dev/mmcblk0p2 rw rootdelay=5 console=,

bootcmd=setenv bootargs root=/dev/mmcblk0p2 rw rootdelay=5 console=$consoledev,\

$baudrate;mmcinfo;ext2load mmc 0:2 $loadaddr /boot/$bootfile;ext2load mmc 0:2 $fdtaddr /boot/\

$fdtfile;bootm $loadaddr - $fdtaddr

bootcmd_mmc0=setenv devnum 0; run mmc_boot

bootcmd_usb0=setenv devnum 0; run usb_boot

bootdelay=3

cpu=armv7

distro_bootcmd=setenv scsi_need_init; for target in ${boot_targets}; do run bootcmd_${target}; done

efi_dtb_prefixes=/ /dtb/ /dtb/current/

eth1addr=00:04:9F:05:89:1B

eth2addr=00:04:9F:05:89:1C

ethact=eTSEC1

ethaddr=00:04:9F:05:89:1A

ethprime=eTSEC1

fdt_addr=0x64f00000

fdt_addr_r=0x90000000

fdt_high=0xffffffff

fdtcontroladdr=beb11d94

fdtheader_addr_r=0x80100000

initrd_high=0xffffffff

kernel_addr=0x61000000

kernel_addr_r=0x81000000

kernel_addr_sd=0x8000

kernel_size=0x2800000

kernel_size_sd=0x14000

kernelhdr_addr_sd=0x4000

kernelhdr_size_sd=0x10

kernelheader_addr=0x60800000

kernelheader_addr_r=0x80200000

kernelheader_size=0x40000

load_addr=0xa0000000

load_efi_dtb=load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r} ${prefix}${efi_fdtfile}

mmc_boot=if mmc dev ${devnum}; then setenv devtype mmc; run scan_dev_for_boot_part; fi

nor_bootcmd=echo Trying load from nor..;cp.b $kernel_addr $load_addr $kernel_size; env exists secureboot && cp.b $kernelheader_addr $kernelheader_addr_r $kernelheader_size && esbc_validated

qspi_bootcmd=echo Trying load from qspi..;sf probe && sf read $load_addr $kernel_addr $kernel_size; env exists secureboot && sf read $kernelheader_addr_r $kernelheader_addr $kernelheader_sd

ramdisk_addr_r=0xa0000000

scan_dev_for_boot=echo Scanning ${devtype} ${devnum}:${distro_bootpart}...; for prefix in ${boot_prefixes}; do run scan_dev_for_scripts; done;

scan_dev_for_boot_part=part list ${devtype} ${devnum} devplist; env exists devplist || setenv devplist 1; for distro_bootpart in ${devplist}; do if fstype ${devtype} ${devnum}:${distro_booe

scan_dev_for_efi=setenv efi_fdtfile ${fdtfile}; if test -z "${fdtfile}" -a -n "${soc}"; then setenv efi_fdtfile ${soc}-${board}${boardver}.dtb; fi; for prefix in ${efi_dtb_prefixes}; do ife

scan_dev_for_extlinux=if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}extlinux/extlinux.conf; then echo Found ${prefix}extlinux/extlinux.conf; run boot_extlinux; echo SCRIPT FAi

scan_dev_for_scripts=for script in ${boot_scripts}; do if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}${script}; then echo Found U-Boot script ${prefix}${script}; run boot_a_se

scriptaddr=0x80000000

scripthdraddr=0x80080000

scsi_boot=run scsi_init; if scsi dev ${devnum}; then setenv devtype scsi; run scan_dev_for_boot_part; fi

scsi_init=if ${scsi_need_init}; then setenv scsi_need_init false; scsi scan; fi

scsidevs=0

sd_bootcmd=echo Trying load from SD ..;mmcinfo && mmc read $load_addr $kernel_addr_sd $kernel_size_sd && env exists secureboot && mmc read $kernelheader_addr_r $kernelhdr_addr_sd $kernelhdd

soc=ls102xa

usb_boot=usb start; if usb dev ${devnum}; then setenv devtype usb; run scan_dev_for_boot_part; fi

vendor=freescale

Environment size: 4813/131068 bytes

tftp 83000000 uImage

tftp 8f000000 uImage-ls1021a-twr.dtb

bootm 83000000 - 8f000000

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加载网络文件系统

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setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

setenv bootargs root=/dev/nfs rw nfsroot=$serverip:/tftpboot/sysrootfs/ ip=$ipaddr:$serverip:192.168.0.14:255.255.255.0::eth0:off console=ttyS0,115200

setenv netdev eth1

setenv nfsboot "run nfsargs;tftp 83000000 uImage;tftp 8f000000 ls1021a-twr.dtb;bootm 83000000 - 8f000000";

run nfsboot

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加载NFS文件系统各种错误

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1. 加载卡死

fsl-gianfar soc:[email protected] eth0: Link is Up - 1Gbps/Full - flow control rx/tx

IP-Config: Complete:

     device=eth0, hwaddr=00:04:9f:05:89:1a, ipaddr=192.168.0.206, mask=255.255.255.0, gw=192.168.0.14

     host=192.168.0.206, domain=, nis-domain=(none)

     bootserver=192.168.0.14, rootserver=192.168.0.14, rootpath=

ALSA device list:

  #0: 2b50000.sai-sgtl5000

  卡在这里不动了

  

  2. 又卡死不动了，位置不同

  修改sysrootfs 文件系统权限后解决

  

/etc/init.d/rc: /etc/rcS.d/S38dmesg.sh: line 17: can't create /var/log/dmesg: nonexistent directory

hostname: sethostname: Operation not permitted

chmod: /dev/ttya0: Operation not permitted

chmod: /dev/ttya1: Operation not permitted

chmod: /dev/ttya2: Operation not permitted

chmod: /dev/ttya3: Operation not permitted

chmod: /dev/ttya4: Operation not permitted

chmod: /dev/ttya5: Operation not permitted

chmod: /dev/ttya6: Operation not permitted

chmod: /dev/ttya7: Operation not permitted

chmod: /dev/ttya8: Operation not permitted

chmod: /dev/ttya9: Operation not permitted

chmod: /dev/ttyaa: Operation not permitted

chmod: /dev/ttyab: Operation not permitted

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网络加载文件，暂时不用网络文件系统

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setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

setenv nfsboot "tftp 83000000 uImage;tftp 88000000 fsl-image-minimal-ls1021atwr-20190528091718.rootfs.ext2.gz.u-boot;tftp 8f000000 ls1021a-twr.dtb;bootm 83000000 88000000 8f000000"

run nfsboot

启动后时间不太对

Linux ls1021atwr 4.1.8-rt8+ #1 SMP Mon May 27 14:12:20 CST 2019 armv7l GNU/Linux

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单独编译内核

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cd /work/QorIQ-SDK-V2.0-20160527-yocto/build_ls1021atwr

source environment-setup-cortexa7hf-vfp-neon-fsl-linux-gnueabi

cd /work/QorIQ-SDK-V2.0-20160527-yocto/build_ls1021atwr/linux_src/git

make  uImage LOADADDR=83000000

cd /work/QorIQ-SDK-V2.0-20160527-yocto/build_ls1021atwr/linux_src/git/arch/arm/boot

cp uImage /tftpboot

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dtb 需要手动编译

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cd /work/QorIQ-SDK-V2.0-20160527-yocto/build_ls1021atwr/linux_src/git/scripts

dtc -f -b 0 -p 1024 -I dts -O dtb -o  ../arch/arm/boot/dts/ls1021a-twr.dtb  ../arch/arm/boot/dts/ls1021a-twr.dts

cd ../../

>>>>>>>>>>用dtc工具编译，有语法错误，暂时没解决，直接改用make 编译生成dtb，OK

cd /work/QorIQ-SDK-V2.0-20160527-yocto/build_ls1021atwr/linux_src/git/

make ls1021a-twr.dtb

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kernel编译时间的问题

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文件没修改，多次编译，网络加载后，uname -a 的时间一直不变，我修改了网卡驱动的内容，然后再编译，再加载后时间就正常了

u-boot测试

u-boot识别到SD 卡

=> mmc info

Device: FSL_SDHC

Manufacturer ID: 3

OEM: 5344

Name: SD128 

Tran Speed: 25000000

Rd Block Len: 512

SD version 2.0

High Capacity: No

Capacity: 120.1 MiB

Bus Width: 4-bit

Erase Group Size: 512 Bytes

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分区情况

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=> mmc part

Partition Map for MMC device 0  --   Partition Type: DOS

Part    Start Sector    Num Sectors     UUID            Type

  1     63              245953          0009e67c-01     06 Boot

=> 

看到设备树的配置是disabled

        esdhc: [email protected] {

            compatible = "fsl,ls1021a-esdhc", "fsl,esdhc";

            reg = <0x0 0x1560000 0x0 0x10000>;

            interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;

            clock-frequency = <0>;

            voltage-ranges = <1800 1800 3300 3300>;

            sdhci,auto-cmd12;

            big-endian;

            bus-width = <4>;

            rcpm-wakeup = <&rcpm 0x00000080 0x0>;

            status = "disabled";

        };

        sata: [email protected] {

            compatible = "fsl,ls1021a-ahci";

            reg = <0x0 0x3200000 0x0 0x10000>,

                  <0x0 0x20220520 0x0 0x4>;

            reg-names = "ahci", "sata-ecc";

            interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;

            clocks = <&clockgen 4 1>;

            status = "disabled";

        };

 

 把上述状态修改为okay之后内核启动SD 有不一样

 

[    1.668542] sdhci: Secure Digital Host Controller Interface driver

[    1.673386] sdhci: Copyright(c) Pierre Ossman

[    1.676420] sdhci-pltfm: SDHCI platform and OF driver helper

[    1.681947] sdhci-esdhc 1560000.esdhc: Looking up vmmc-supply from device tree

[    1.681955] sdhci-esdhc 1560000.esdhc: Looking up vmmc-supply property in node /soc/[email protected] failed

[    1.681962] sdhci-esdhc 1560000.esdhc: Looking up vqmmc-supply from device tree

[    1.681969] sdhci-esdhc 1560000.esdhc: Looking up vqmmc-supply property in node /soc/[email protected] failed

[    1.681975] sdhci-esdhc 1560000.esdhc: No vmmc regulator found

[    1.686474] sdhci-esdhc 1560000.esdhc: No vqmmc regulator found

[    1.726540] mmc0: SDHCI controller on 1560000.esdhc [1560000.esdhc] using ADMA 64-bit

mount 能看到mmc

/dev/mmcblk0p1 on /run/media/mmcblk0p1 type vfat (rw,relatime,gid=6,fmask=0007,dmask=0007,allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)

devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620)

看到120M SD 卡

[email protected]:/run/media/mmcblk0p1# df -h

Filesystem                Size      Used Available Use% Mounted on

/dev/root                12.4M      8.1M      3.6M  69% /

devtmpfs                502.8M      4.0K    502.8M   0% /dev

tmpfs                   504.6M    120.0K    504.5M   0% /run

tmpfs                   504.6M     60.0K    504.6M   0% /var/volatile

'/dev/mmcblk0p1          119.8M         0    119.8M   0% /run/media/mmcblk0p1

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u-boot 从SD 卡启动

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setenv bootfile uImage

setenv fdtfile ls1021a-twr.dtb

setenv bootcmd 'setenv bootargs root=/dev/mmcblk0p1 rw rootdelay=5 console=$consoledev,

$baudrate;mmcinfo;ext2load mmc 0:1 $loadaddr /boot/$bootfile;ext2load mmc 0:2 $fdtaddr /boot/$fdtfile;bootm $loadaddr - $fdtaddr'

编译u-boot 

选择ls1021atwr_sdcard_qspi_config 选项

编译完成后生成u-boot-with-spl-pbl.bin ，直接烧到SD卡，然后RCW源选择SD卡，即可以启动

setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

tftp 82000000 u-boot-with-spl-pbl.bin

mmc write 82000000 8 800

内核启动后将u-boot-with-spl-pbl-sd.bin（不知如何生成的！！！！！！！！）烧入

dd if=u-boot-with-spl-pbl.bin of=/dev/sdb bs=512 seek=8

环境变量保存到MMC 

=> setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

=> saveenv 

Saving Environment to MMC...

Writing to MMC(0)... done

=> 

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成功启动

SW2 设置 00100111 

注意此时RCW 源不要把QSPI置上。

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可以看到两个u-boot的时间相同的，确实是从SD卡启动的

U-Boot SPL 2016.012.0+ga9b437f (Jun 04 2019 - 11:08:31)

Trying to boot from MMC

U-Boot 2016.012.0+ga9b437f (Jun 04 2019 - 11:08:31 +0800)

CPU:   Freescale LayerScape LS1021E, Version: 2.0, (0x87081120)

Clock Configuration:

       CPU0(ARMV7):1000 MHz, 

       Bus:300  MHz, DDR:800  MHz (1600 MT/s data rate), 

Reset Configuration Word (RCW):

       00000000: 0608000a 00000000 00000000 00000000

       00000010: 30000000 00007900 60040a00 21046000

       00000020: 00000000 00000000 00000000 20000000

       00000030: 20024800 881b7340 00000000 00000000

I2C:   ready

Model: LS1021A TWR Board

Board: LS1021ATWR

DRAM:  1 GiB

Using SERDES1 Protocol: 48 (0x30)

MMC:   FSL_SDHC: 0

*** Warning - bad CRC, using default environment

EEPROM: NXID v1

PCIe1: Root Complex no link, regs @ 0x3400000

PCIe2: disabled

In:    serial

Out:   serial

Err:   serial

SEC0: RNG instantiated

SATA link 0 timeout.

AHCI 0001.0300 1 slots 1 ports ? Gbps 0x1 impl SATA mode

flags: 64bit ncq pm clo only pmp fbss pio slum part ccc 

Found 0 device(s).

SCSI:  Net:   eTSEC1 is in sgmii mode.

eTSEC2 is in sgmii mode.

eTSEC1 [PRIME], eTSEC2, eTSEC3

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U-BOOT 从nor flash启动

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U-Boot 2017.11-g00cde47 (Mar 22 2018 - 17:46:21 +0800)

CPU:   Freescale LayerScape LS1021E, Version: 2.0, (0x87081120)

Clock Configuration:

       CPU0(ARMV7):1200 MHz, 

       Bus:300  MHz, DDR:800  MHz (1600 MT/s data rate), 

Reset Configuration Word (RCW):

       00000000: 0608000c 00000000 00000000 00000000

       00000010: 30000000 00007900 e0025a00 21046000

       00000020: 00000000 00000000 00000000 18000000

       00000030: 00080000 481b7340 00000000 00000000

Model: LS1021A TWR Board

Board: LS1021ATWR

CPLD:  V3.3

PCBA:  V2.0

VBank: 1

I2C:   ready

DRAM:  1 GiB

Using SERDES1 Protocol: 48 (0x30)

Firmware 'Microcode version 0.0.1 for P1021 r1.0' for 1021 V1.0

QE: uploading microcode 'Microcode for P1021 r1.0' version 0.0.1

Flash: 128 MiB

MMC:   FSL_SDHC: 0

EEPROM: NXID v1

In:    serial

Out:   serial

Err:   serial

SEC0: RNG instantiated

SATA link 0 timeout.

AHCI 0001.0300 1 slots 1 ports ? Gbps 0x1 impl SATA mode

flags: 64bit ncq pm clo only pmp fbss pio slum part ccc 

Found 0 device(s).

SCSI:  Net:   eTSEC1 is in sgmii mode.

eTSEC2 is in sgmii mode.

PCIe0: [email protected] Root Complex: no link

PCIe1: [email protected] disabled

eTSEC1 [PRIME], eTSEC2, eTSEC3

Hit any key to stop autoboot:  0 

查看nor flash的RCW 位置

=> md.b 60000000 64

60000000: aa 55 aa 55 01 ee 01 00 06 08 00 0c 00 00 00 00    .U.U............

60000010: 00 00 00 00 00 00 00 00 30 00 00 00 00 00 79 00    ........0.....y.

60000020: e0 02 5a 00 21 04 60 00 00 00 00 00 00 00 00 00    ..Z.!.`.........

60000030: 00 00 00 00 18 00 00 00 00 08 00 00 48 1b 73 40    [email protected]

60000040: 00 00 00 00 00 00 00 00 09 57 02 00 ff ff ff ff    .........W......

60000050: 09 ee 02 00 60 10 00 00 09 ea 08 5c 00 50 28 80    ....`......\.P(.

60000060: 09 57 01 58    

查看u-boot image 的内容

=> md.b 60100000 128

60100000: b8 00 00 ea 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5    ................

60100010: 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5    ................

60100020: 60 00 10 60 c0 00 10 60 20 01 10 60 80 01 10 60    `..`...` ..`...`

60100030: e0 01 10 60 40 02 10 60 a0 02 10 60 ef be ad de    ...`@..`...`....

60100040: de c0 ad 0b 00 f0 20 e3 00 f0 20 e3 00 f0 20 e3    ...... ... ... .

60100050: 00 f0 20 e3 00 f0 20 e3 00 f0 20 e3 00 f0 20 e3    .. ... ... ... .

60100060: 28 d0 1f e5 00 e0 8d e5 00 e0 4f e1 04 e0 8d e5    (.........O.....

60100070: 13 d0 a0 e3 0d f0 69 e1 0f e0 a0 e1 0e f0 b0 e1    ......i.........

60100080: 48 d0 4d e2 ff 1f 8d e8 50 20 1f e5 0c 00 92 e8    H.M.....P ......

60100090: 48 00 8d e2 34 50 8d e2 0e 10 a0 e1 0f 00 85 e8    H...4P..........

601000a0: 0d 00 a0 e1 9b 08 00 eb 00 f0 20 e3 00 f0 20 e3    .......... ... .

601000b0: 00 f0 20 e3 00 f0 20 e3 00 f0 20 e3 00 f0 20 e3    .. ... ... ... .

601000c0: 88 d0 1f e5 00 e0 8d e5 00 e0 4f e1 04 e0 8d e5    ..........O.....

601000d0: 13 d0 a0 e3 0d f0 69 e1 0f e0 a0 e1 0e f0 b0 e1    ......i.........

601000e0: 48 d0 4d e2 ff 1f 8d e8 b0 20 1f e5 0c 00 92 e8    H.M...... ......

601000f0: 48 00 8d e2 34 50 8d e2 0e 10 a0 e1 0f 00 85 e8    H...4P..........

60100100: 0d 00 a0 e1 8f 08 00 eb 00 f0 20 e3 00 f0 20 e3    .......... ... .

60100110: 00 f0 20 e3 00 f0 20 e3 00 f0 20 e3 00 f0 20 e3    .. ... ... ... .

60100120: e8 d0 1f e5 00 e0 8d e5                            ........

=> 

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umount 用法

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

# cp uImage and uImage.dtb to /temp/boot folder

# umount /temp

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内核功能测试

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USB 测试

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

U盘测试

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

插入U盘

[email protected]:~# usb 1-1.2: new high-speed USB device number 3 using xhci-hcd

usb-storage 1-1.2:1.0: USB Mass Storage device detected

scsi host1: usb-storage 1-1.2:1.0

scsi 1:0:0:0: Direct-Access     PNY      Lovely Attache   0.00 PQ: 0 ANSI: 2

sd 1:0:0:0: Attached scsi generic sg0 type 0

sd 1:0:0:0: [sda] 7892040 512-byte logical blocks: (4.04 GB/3.76 GiB)

sd 1:0:0:0: [sda] Write Protect is off

sd 1:0:0:0: [sda] Asking for cache data failed

sd 1:0:0:0: [sda] Assuming drive cache: write through

 sda: sda1

sd 1:0:0:0: [sda] Attached SCSI removable disk

[email protected]:~# mount

192.168.0.14:/tftpboot/sysrootfs/ on / type nfs (rw,relatime,vers=2,rsize=4096,wsize=4096,namlen=255,hard,nolock,proto=udp,timeo=11,retrans=3,sec=sys,mountaddr=192.168.0.14,mountvers=1,mou)

devtmpfs on /dev type devtmpfs (rw,relatime,size=516632k,nr_inodes=129158,mode=755)

proc on /proc type proc (rw,relatime)

sysfs on /sys type sysfs (rw,relatime)

debugfs on /sys/kernel/debug type debugfs (rw,relatime)

tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755)

tmpfs on /var/volatile type tmpfs (rw,relatime)

devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620)

/dev/sda1 on /run/media/sda1 type vfat (rw,relatime,gid=6,fmask=0007,dmask=0007,allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)

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

fdisk -l

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

Device     Boot  Start     End Sectors  Size Id Type

/dev/sda1  *    691968 7892039 7200072  3.4G  b W95 FAT32

查看U盘内容

[email protected]:/run/media/sda1# ls

??                                          PCIE????.ppt                                bmp211_?????.txt                            vxworks7_PCI ????.doc

????????.doc                                PCIE???????.docx                            kernel-source_????lxd?????_20190124.tar.gz  zyhd-20190308.zip

???????_??.doc                              PCIE???????????.doc                         kernel_make.sh.tar.gz                       zyhd-20190309.zip

BMP401_1_0_0                                PCIE???????????111.doc                      stm32f4                                     zyhd_??MV3082??????-20180420.zip

KW902.rar                                   System Volume Information                   tftpfile

Linux PCIE_MSI??.doc                        app_supported_ioctl_20190312                vsbE500mc_phy???OK_20171009.rar

PCI??                                       bmp211_????.doc                             vxWorks7?????? (???).docx

拔掉U盘

[email protected]:/run/media/sda1# usb 1-1.2: USB disconnect, device number 3

FAT-fs (sda1): FAT read failed (blocknr 2352)

FAT-fs (sda1): Directory bread(block 16384) failed

FAT-fs (sda1): Directory bread(block 16385) failed

FAT-fs (sda1): Directory bread(block 16386) failed

FAT-fs (sda1): Directory bread(block 16387) failed

FAT-fs (sda1): Directory bread(block 16388) failed

FAT-fs (sda1): Directory bread(block 16389) failed

FAT-fs (sda1): Directory bread(block 16390) failed

FAT-fs (sda1): Directory bread(block 16391) failed

FAT-fs (sda1): Directory bread(block 16384) failed

FAT-fs (sda1): Directory bread(block 16385) failed

FAT-fs (sda1): FAT read failed (blocknr 2352)

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

norflash 测试

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

setenv bootargs root=/dev/mtdblock4 rootfstype=jffs2 rwconsole=ttyS0,115200

再boot ，内核起不来，卡在

   Loading Kernel Image ... OK

   Using Device Tree in place at 90000000, end 90007593

Starting kernel ...

擦除一个分区的所有内容

flash_eraseall -j /dev/mtd2

mount -t jffs2 /dev/mtdblock9 /mnt

挂在失败，分区不干净，重新格式化，再挂载

mkfs.vfat  /dev/mtdblock9

结论 ： 格式化之后一把挂上去了

[email protected]:~# mount -t jffs2 /dev/mtdblock9 /mnt

[email protected]:~# cd mnt

-sh: cd: can't cd to mnt

[email protected]:~# cd /mnt

[email protected]:/mnt# ls

upper  work

[email protected]:/mnt# 

新建一个目录libin

重启设备后，重新挂载此分区libin目录仍然在，说明该次写入确实是正确的

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

QSPI启动u-boot

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

U-Boot 2016.092.0+g199df35 (Nov 20 2016 - 12:55:17 +0800)

CPU:   Freescale LayerScape LS1021E, Version: 2.0, (0x87081120)

Clock Configuration:

       CPU0(ARMV7):1200 MHz, 

       Bus:300  MHz, DDR:800  MHz (1600 MT/s data rate), 

Reset Configuration Word (RCW):

       00000000: 0608000c 00000000 00000000 00000000

       00000010: 30000000 00007900 40025a00 21046000

       00000020: 00000000 00000000 00000000 20000000

       00000030: 20024800 881b7540 00000000 00000000

Model: LS1021A TWR Board

Board: LS1021ATWR

I2C:   ready

DRAM:  1 GiB

Using SERDES1 Protocol: 48 (0x30)

MMC:   FSL_SDHC: 0

SF: Detected N25Q128 with page size 256 Bytes, erase size 64 KiB, total 16 MiB

EEPROM: NXID v1

In:    serial

Out:   serial

Err:   serial

SEC0: RNG instantiated

SATA link 0 timeout.

AHCI 0001.0300 1 slots 1 ports ? Gbps 0x1 impl SATA mode

flags: 64bit ncq pm clo only pmp fbss pio slum part ccc 

Found 0 device(s).

SCSI:  Net:   eTSEC1 is in sgmii mode.

eTSEC2 is in sgmii mode.

PCIe0: [email protected] Root Complex: no link

PCIe1: [email protected] disabled

eTSEC1 [PRIME], eTSEC2, eTSEC3

更新QSPI启动的u-boot.bin

setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

tftp 81000000 rcw_1000_qspiboot_swap.bin;

sf erase 0 +$filesize;

sf write 81000000 0 $filesize

tftp 82000000 u-boot-dtb.bin;

sf erase 10000 +$filesize;

sf write 82000000 10000 $filesize

注意擦除命令的写法

sf erase 0 +0x70

sf erase 0 0x70  =====>>>>错误！！！！！

sf probe

sf read 0x81000000 0 256

md 0x81000000 256

sf probe

sf read 0x82000000 0 256

md.b 0x82000000 64

这个文件烧到QSPI FLASH 试试 ======> 结论：无法启动

u-boot-sdcard-qspi.bin

擦除起始512K 位置  0x80000

sf erase 0 +0x80000;

tftp 81000000 u-boot-sdcard-qspi.bin;

从NOR 启动，写入SD卡中去

mmc write 81000000 0x900 0x800

tftp 81000000 rcw_1200_qspiboot_swap.bin

mmc write 81000000 0x900 0x100

文件大小

tftp 81000000 u-boot-sdcard-qspi.bin;

Speed: 1000, full duplex

Using eTSEC1 device

TFTP from server 192.168.0.14; our IP address is 192.168.0.206

Filename 'u-boot-sdcard-qspi.bin'.

Load address: 0x81000000

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

         2.5 MiB/s

done

Bytes transferred = 574606 (8c48e hex)

写入flash

sf write 0x81000000 0 0x8c48e

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

在flash 0x10000 处 写入 u-boot-dtb.bin

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

tftp 81000000 u-boot-dtb.bin;

Load address: 0x81000000

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

         2.4 MiB/s

done

Bytes transferred = 454614 (6efd6 hex)

mmc write 81000000 0x900 0x800

mmc write 81000000 0x1000 0x800

sf erase 10000 +0x6efd6

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

0x0 处写入rcw_swap.bin

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

rcw_1000_qspiboot_swap.bin

tftp 81000000 rcw_1200_qspiboot_swap.bin

Load address: 0x81000000

Loading: #

         27.3 KiB/s

done

Bytes transferred = 112 (70 hex)

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

按照SDK 搞法swap

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

1.找到byte_swap.tcl，拷贝到u-boot目录，顺便把yocoto编译生成的rcw也拷贝u-boot目录

[email protected]:/work/QorIQ-SDK-V2.0-20160527-yocto/build_ls1021atwr# find  ./ -name byte_swap.tcl

./tmp/sysroots/x86_64-linux/usr/bin/byte_swap.tcl

./tmp/work/x86_64-linux/change-file-endianess-native/1.0-r0/sysroot-destdir/work/QorIQ-SDK-V2.0-20160527-yocto/build_ls1021atwr/tmp/sysroots/x86_64-linux/usr/bin/byte_swap.tcl

./tmp/work/ls1021atwr-fsl-linux-gnueabi/rcw/git-r0/git/ls1021aqds/byte_swap.tcl

./tmp/work/ls1021atwr-fsl-linux-gnueabi/rcw/git-r0/git/ls1043aqds/byte_swap.tcl

2.顺序交换，看看两个文件有什么不同

[email protected]:/work/QorIQ-SDK-V2.0-20160527-yocto/build_ls1021atwr/u-boot-src/git/tools# tclsh byte_swap.tcl ../rcw/SSR_PNS_30/rcw_1000.bin rcw_1000_swap.bin 8

../rcw/SSR_PNS_30/rcw_1000.bin rcw_1000_swap.bin 8

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

测试u-boot-sdcard-qspi_swap.bin 测试通过

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

tftp 81000000 u-boot-sdcard-qspi_swap.bin;

mmc write 81000000 0x900 0x800

查看下当前QSPI FLASH里面的内容

=> sf probe

SF: Detected N25Q128 with page size 256 Bytes, erase size 64 KiB, total 16 MiB

=> sf read 81000000 0 10000

device 0 offset 0x0, size 0x10000

SF: 65536 bytes @ 0x0 Read: OK

=> md.b 81000000 128

81000000: 00 01 ee 01 55 aa 55 aa 00 00 00 00 0a 00 08 06    ....U.U.........

81000010: 00 00 00 00 00 00 00 00 00 79 00 00 00 00 00 30    .........y.....0

81000020: 00 60 04 21 00 0a 04 60 00 00 00 00 00 00 00 00    .`.!...`........

81000030: 00 00 00 20 00 00 00 00 40 73 1b 88 00 48 02 20    ... [email protected] 

81000040: 00 00 00 00 00 00 00 00 ff ff ff ff 00 02 57 09    ..............W.

81000050: 00 03 00 00 58 01 57 09 00 73 f4 21 7c 00 40 89    ....X.W..s.!|[email protected]

81000060: 00 00 00 10 00 02 ee 09 00 10 00 00 58 01 57 09    ............X.W.

81000070: ff ff 0f 00 c0 00 61 09 ea 00 00 16 00 00 00 81    ......a.........

81000080: e5 9f f0 14 e5 9f f0 14 e5 9f f0 14 e5 9f f0 14    ................

81000090: e5 9f f0 14 e5 9f f0 14 10 00 00 40 e5 9f f0 14    [email protected]

810000a0: 10 00 00 40 10 00 00 40 10 00 00 40 10 00 00 40    [email protected]@[email protected]@

810000b0: 10 00 00 40 10 00 00 40 40 00 00 81 de ad be ef    [email protected]@@.......

810000c0: e3 20 f0 00 eb ff ff fe e3 20 f0 00 e3 20 f0 00    . ....... ... ..

810000d0: e3 20 f0 00 e3 20 f0 00 e3 20 f0 00 e3 20 f0 00    . ... ... ... ..

810000e0: e1 0f 00 00 ea 00 00 10 e3 31 00 1a e2 00 10 1f    .........1......

810000f0: 13 80 00 13 13 c0 00 1f e1 29 f0 00 e3 80 00 c0    .........)......

81000100: ee 11 0f 10 80 00 00 81 ee 01 0f 10 e3 c0 0a 02    ................

81000110: ee 0c 0f 10 e5 9f 00 6c ee 07 0f 15 eb 00 01 10    .......l........

81000120: ee 07 0f 95 ee 07 0f 9a   

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

0x1000 处开始存放u-boot，与SDK不符有点不理解

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

=> sf probe

SF: Detected N25Q128 with page size 256 Bytes, erase size 64 KiB, total 16 MiB

=> sf read 81000000 1000 100000

device 0 offset 0x1000, size 0x100000

SF: 1048576 bytes @ 0x1000 Read: OK

=> md 81000000

81000000: 0c1093e5 080093e5 080081e5 0c1080e5    ................

81000010: 041083e5 011082e3 b4319fe5 08308ee5    ..........1...0.

81000020: 81000ec0 003093e5 7080bd38 030052e1    ......0.8..p.R..

81000030: 7040bde8 a8319fe5 a3ffffea 000093e5    [email protected]

81000040: 044085e5 000051e3 0900001a 0c10a011    [email protected]

81000050: 08c08ee2 080010e5 002082e0 033060e0    .......... ..`0.

81000060: 0c0050e1 080093e5 0cc09315 81000f00    .P..............

81000070: 0cc08015 0110a003 040085e0 08008c15    ................

81000080: 010010e3 040090e5 000051e3 1000001a    .........Q......

81000090: 080095e5 042082e0 38c19fe5 0900001a    ...... ....8....

810000a0: 040050e1 08408ce2 81000f40 0500001a    [email protected]@.......

810000b0: 0110a0e3 14308ce5 0c0083e5 10308ce5    ......0.......0.

810000c0: 020000ea 080083e5 0cc080e5 0cc095e5    ................

810000d0: 000051e3 08008ce5 040083e5 010082e3    .Q..............

810000e0: 7080bd18 022083e7 0c00002a 020c52e3    ...p.. .*....R..

810000f0: a221a0e1 81000f80 01c0a0e3 04009ee5    ..!.............

=> 

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

重新恢复的QSPI启动，CPU的频率为1000HZ,原demo板程序为1200Mhz

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

发现一个现象 ：虽然是从QSPI启动的，但是一开始还是从SD卡启动，SPL加载

SD卡中的映像，然后从QSPI启动，拔掉SD卡后，QSPI也无法启动

U-Boot SPL 2016.012.0+ga9b437f (May 27 2019 - 11:26:58)

Trying to boot from MMC

U-Boot 2016.012.0+ga9b437f (Jun 04 2019 - 11:08:31 +0800)

CPU:   Freescale LayerScape LS1021E, Version: 2.0, (0x87081120)

Clock Configuration:

       CPU0(ARMV7):1000 MHz, 

       Bus:300  MHz, DDR:800  MHz (1600 MT/s data rate), 

Reset Configuration Word (RCW):

       00000000: 0608000a 00000000 00000000 00000000

       00000010: 30000000 00007900 60040a00 21046000

       00000020: 00000000 00000000 00000000 20000000

       00000030: 20024800 881b7340 00000000 00000000

I2C:   ready

Model: LS1021A TWR Board

Board: LS1021ATWR

DRAM:  1 GiB

Using SERDES1 Protocol: 48 (0x30)

MMC:   FSL_SDHC: 0

EEPROM: NXID v1

PCIe1: Root Complex no link, regs @ 0x3400000

PCIe2: disabled

In:    serial

Out:   serial

Err:   serial

SEC0: RNG instantiated

SATA link 0 timeout.

AHCI 0001.0300 1 slots 1 ports ? Gbps 0x1 impl SATA mode

flags: 64bit ncq pm clo only pmp fbss pio slum part ccc 

Found 0 device(s).

SCSI:  Net:   eTSEC1 is in sgmii mode.

eTSEC2 is in sgmii mode.

eTSEC1 [PRIME], eTSEC2, eTSEC3

>>>>>>>>>>TFTP 获取文件失败，但是RCW 擦除和烧写还是执行了，RCW 被我搞坏了>>>>>>>>>>>

命令应该一个一个的来

===================网络不行，更新不了，还是要解决QSPI/SD 启动后网口不通的问题===============

准备回复QSPI启动，把数据放到SD卡0x9000 存储rcw

rcw_1000_qspiboot_swap.bin

setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

tftp 81000000 rcw_1000_qspiboot_swap.bin;

mmc write 81000000 0x900 0x100

sf write 82000000 0 0x70

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

QSPI启动时的RCW

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

Reset Configuration Word (RCW):

       00000000: 0608000c 00000000 00000000 00000000

       00000010: 30000000 00007900 40025a00 21046000

       00000020: 00000000 00000000 00000000 20000000

       00000030: 20024800 881b7540 00000000 00000000

NOR FLASH启动时的RCW

Reset Configuration Word (RCW):

       00000000: 0608000c 00000000 00000000 00000000

       00000010: 30000000 00007900 e0025a00 21046000

       00000020: 00000000 00000000 00000000 18000000

       00000030: 00080000 481b7340 00000000 00000000

Model: LS1021A TWR Board

从SD启动时的RCW

       00000000: 0608000a 00000000 00000000 00000000

       00000010: 30000000 00007900 60040a00 21046000

       00000020: 00000000 00000000 00000000 20000000

       00000030: 20024800 881b7340 00000000 00000000

       

比较过程 ：

1.SD启动与NOR FLASH启动有以下差别

  CPU频率 ：  SD(1000M HZ)  NOR (1200M HZ) 第一个控制字的c和a体现出来，见RM P229

  e0025a00(E: PBL_SRC = IFC  2 : RCW SOURCE 为NOR) 与 60040a00 （6： PBL_SRC 为SD ,4 ：RCW_SOURCE = SD）

结论 ： 有诸多不同，现在发现调试网口不可以用，phy起来了，但是MAC有问题

CodeWarroior生成的文件

00000000: 55aa55aa 0001ee01 0a001006 00000000

00000010: 00000000 00000000 00000030 02000000

00000020: 004a02e0 00600420 00000000 00000000

00000030: 00000000 00000000 00000000 00000000

00000040: 00000000 00000000 40006108 017704b3

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

从SD卡启动时，发现RCW 的存储位置，偏移0x1000的位置

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

80001000: 55aa55aa 0001ee01 0a000806 00000000    .U.U............

80001010: 00000000 00000000 00000030 00790000    ........0.....y.

80001020: 000a0460 00600421 00000000 00000000    `...!.`.........

80001030: 00000000 00000020 00480220 40731b88    .... ... [email protected]

80001040: 00000000 00000000 00025709 ffffffff    .........W......

80001050: 58015709 00030000 7c004089 0073f421    [email protected]|!.s.

80001060: 0002ee09 00000010 58015709 00100000    .........W.X....

80001070: c0006109 ffff0f00 00000081 ea000016    .a..............

80001080: e59ff014 e59ff014 e59ff014 e59ff014    ................

80001090: e59ff014 e59ff014 e59ff014 10000040    [email protected]

800010a0: 10000040 10000040 10000040 10000040    @[email protected]@[email protected]

800010b0: 10000040 10000040 deadbeef 40000081    @[email protected]@

800010c0: ebfffffe e320f000 e320f000 e320f000    ...... ... ... .

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

从SD卡启动u-boot调试

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

dd if=u-boot-with-spl-pbl.bin of=/run/media/mmcblk0p1 bs=512 seek=8

dd if=u-boot-with-spl-pbl.bin of=/dev/mmcblk0p1 bs=512 seek=8

[email protected]:/# dd if=test.bin of=/dev/mmcblk0p1 bs=512 seek=8

0+1 records in

0+1 records out

8 bytes (8B) copied, 0.001995 seconds, 3.9KB/s

dd if=fsl-image-minimal-ls1021atwr-20190528091718.rootfs.tar.gz of=/dev/mmcblk0p1 bs=1024 seek=1024

[email protected]:/# dd if=fsl-image-minimal-ls1021atwr-20190528091718.rootfs.tar.gz of=/dev/mmcblk0p1 bs=1024 seek=1024

3571+1 records in

3571+1 records out

3656774 bytes (3.5MB) copied, 2.101526 seconds, 1.7MB/s

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

SD 卡可读写

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

1.格式化为vfat模式

2.内核启动后没有自动挂载，手动挂载到/mnt#

3.进入/mnt，创建一个文件test.bin

4.重新启动，重新挂载，查看test.bin 仍然在，表示SD卡写入成功

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

所有文件都从SD卡启动

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

setenv loadaddr 81000000 

setenv fdtaddr 85000000

setenv bootfile uImage

setenv fdtfile  ls1021a-twr.dtb

setenv bootcmd 'setenv bootargs root=/dev/mmcblk0p2 rw rootdelay=5 console=$consoledev,$baudrate;mmcinfo;

 ext2load mmc 0:2 $loadaddr /boot/$bootfile;

 ext2load mmc 0:2 $fdtaddr /boot/$fdtfile;

 ext2load mmc 0:2 83000000 /boot/fsl-image-minimal-ls1021atwr-20190528091718.rootfs.ext2.gz.u-boot;

 bootm $loadaddr - $fdtaddr'

=> save

 bootm $loadaddr 88000000  $fdtaddr

====>>>>>修改后，start kenel有打印了

 setenv consoledev ttyS0,115200

 setenv bootcmd 'setenv bootargs root=/dev/mmcblk0p2 rw rootdelay=5 console=$consoledev,$baudrate;mmcinfo;

 ext2load mmc 0:2 $loadaddr /boot/$bootfile;

 ext2load mmc 0:2 $fdtaddr /boot/ls1021a-twr.dtb;

 bootm $loadaddr - $fdtaddr'

 

 

setenv  bootargs root=/dev/mmcblk0p2 rw console=ttyS0,115200

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

使用demo板的所有文件，看SD卡启动内核能否正常通过

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

setenv consoledev ttyS0,115200

setenv loadaddr 81000000 

setenv fdtaddr 85000000

setenv bootfile uImage

setenv fdtfile  uImage-ls1021a-twr.dtb 

setenv bootcmd 'setenv bootargs root=/dev/mmcblk0p2 rw rootdelay=5 console=$consoledev,$baudrate;mmcinfo;

 ext2load mmc 0:2 $loadaddr /$bootfile;

 ext2load mmc 0:2 $fdtaddr /$fdtfile;

 ext2load mmc 0:2 83000000 /fsl-image-core-ls1021atwr-20160514210716.rootfs.ext2.gz.u-boot;

 bootm $loadaddr - $fdtaddr'

 tftp -gr uImage 192.168.0.14

 tftp -gr  fsl-image-core-ls1021atwr-20160514210716.rootfs.ext2.gz.u-boot 192.168.0.14

 tftp -gr uImage-ls1021a-twr.dtb  192.168.0.14

 ///如果分区0 破坏

 dd if=u-boot-with-spl-pbl.bin of=/dev/sdb bs=512 seek=8

 tftp -gr u-boot-with-spl-pbl.bin 192.168.0.14

 

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

SDK 描述支持QSPI启动的u-boot获得方法

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

Build U-Boot image for QSPI boot

1. Compile QSPI boot image(enable QSPI):

    $make distclean ARCH=arm CROSS_COMPILE=${toolchain_path}/gcc-linaro-arm-linux-

    gnueabihf-4.8-2014.04_linux/bin/arm-linux-gnueabihf-

    $make ARCH=arm ${board_name}_qspi_defconfig

    $make CROSS_COMPILE=${toolchain_path}/gcc-linaro-arm-linux-gnueabihf-4.8-2014.04_linux/bin/arm-

    linux-gnueabihf- -j4

2. Swap the bytes for RCW:

    $tclsh byte_swap.tcl rcw_1200_qspiboot.bin rcw_1200_qspiboot_swap.bin 8

    The byte_swap.tcl script is a shareable tool and can be found under  rcw/tool/ directory.

3. Write RCW and U-Boot images to QSPI flash under SD boot (enables QSPI) mode:

    sf probe 0:0

    SF: Detected N25Q128 with page size 256 Bytes, erase size 64 KiB, total 16 MiB

    tftp 81000000 rcw_1200_qspiboot_swap.bin;sf erase 0 +$filesize;sf write 81000000 0 $filesize

    tftp 82000000 u-boot-dtb.bin;sf erase 10000 +$filesize;sf write 82000000 10000 $filesize

4. Switch to QSPI boot: Set switches referring to board configuration document and power on the board from QSPI boot.

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

FAE 拿来第二块板子，现更新其中的程序 =====>成功

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

<更新 uImage>

setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

tftp 82000000 uImage

protect off 0x60300000 +$filesize

erase 0x60300000 +$filesize

cp.b 82000000 0x60300000 $filesize

protect on 0x60300000 +$filesize

<更新dtb>

setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

tftp 82000000 ls1021a-twr.dtb

protect off 0x60200000 +$filesize

erase 0x60200000 +$filesize

cp.b 82000000 0x60200000 $filesize

protect on 0x60200000 +$filesize

< 更新文件系统 >

setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

tftp 82000000 fsl-image-minimal-ls1021atwr-20190528091718.rootfs.ext2.gz.u-boot 

protect off 0x60a00000 +$filesize

erase 0x60a00000 +$filesize

cp.b 82000000 0x60a00000 $filesize

protect on 0x60a00000 +$filesize

修改环境变量

setenv fdt_high 0xa0000000

setenv initrd_high 0xa0000000

setenv kernel_addr 60300000

setenv ramargs 'setenv bootargs root=/dev/ram rw console=ttyS0,115200'

setenv bootcmd 'run ramargs; bootm 0x60300000 0x60a00000 0x60200000'

saveenv

<原来mmc boot的写法>

nor_bootcmd=echo Trying load from nor..;cp.b $kernel_addr $load_addr $kernel_size; env exists secureboot && cp.b $kernelheader_addr $kernelheader_addr_r $kernelheader_size && esbc_validate ${kernelheader_addr_r};

准备修改：

cp.b  0x60200000 82000000 $filesize

setenv nor_bootcmd 'cp.b  0x60300000 83000000 400000 ; cp.b  0x60a00000 88000000 400000;  cp.b  0x60200000 89000000 10000;bootm 83000000 88000000 89000000'

setenv nor_bootcmd 'echo Trying load from nor..;cp.b $kernel_addr $load_addr $kernel_size; env exists secureboot && cp.b $kernelheader_addr $kernelheader_addr_r $kernelheader_size && esbc_validated'

<demo 板flash的各种文件布局和SDK中描述的不一致>

内核存放地址

kernel_addr=0x61000000

dtb存放地址

fdt_addr=0x64f00000

kernelheader_addr=0x60800000

kernelheader_addr_r=0x80200000

kernelheader_size=0x40000

 

setenv kernel_addr 0x61000000

setenv fdt_addr 0x64f00000

setenv kernelheader_addr 0x60800000

setenv kernelheader_addr_r 0x80200000

setenv kernelheader_size 0x40000

kernelheader_size=0x40000

======>更新到上面的地址

<更新kernel>

setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

tftp 82000000 uImage

protect off 0x61000000 +$filesize

erase 0x61000000 +$filesize

cp.b 82000000 0x61000000 $filesize

protect on 0x61000000 +$filesize

<更新dtb>

setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

tftp 82000000 ls1021a-twr.dtb

protect off 0x64f00000 +$filesize

erase 0x64f00000 +$filesize

cp.b 82000000 0x64f00000 $filesize

protect on 0x64f00000 +$filesize

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

nor 启动环境变量修改如下后，所有的文件都可以从nor flash 启动

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

setenv nor_bootcmd 'cp.b  0x61000000 83000000 400000 ; cp.b  0x60a00000 88000000 400000;  cp.b  0x64f00000 89000000 10000;bootm 83000000 88000000 89000000'

bootm $kernel_addr 82000000  $fdt_addr

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

支持所有文件从QSPI启动

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

修改环境变量

    set bootcmd 'run qspi_bootcmd '

    setenv kernel_load_address 81000000

    setenv ramdisk_load_address 85000000

    setenv devicetree_load_address 89000000

 set qspi_bootcmd 'echo Copying Linux from QSPI flash to RAM... &&  \

 sf probe 0 && 

 sf read ${kernel_load_address} 0x500000 ${kernel_size} &&  \

 sf read ${devicetree_load_address} 0x900000 ${devicetree_size} &&  \

 echo Copying ramdisk... &&  \

 sf read ${ramdisk_load_address} 0x920000 ${ramdisk_size} &&  \

 bootm ${kernel_load_address} ${ramdisk_load_address} ${devicetree_load_address}' \

 

<更新 uImage>

setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

tftp 82000000 uImage

sf write  0x82000000 500000  359228

<更新dtb>

setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

tftp 82000000 ls1021a-twr.dtb

sf write  0x82000000 900000  5466

< 更新文件系统 >

setenv serverip 192.168.0.14;setenv ipaddr 192.168.0.206

tftp 82000000 fsl-image-minimal-ls1021atwr-20190528091718.rootfs.ext2.gz.u-boot 

sf write  0x82000000 920000  3803ef