BSP内核构建走读

camdriod中对lichee的构建过程

使用BSP内核的话,需要使用官方sdk编译camdriod并从中取出uImage。

鉴于camdriod较大,所以我们先简单走读下camdriod中对lichee的构建过程,扣出这部分内容。

camdriod的构建脚本:

#!/bin/bash
source build/envsetup.sh &&
lunch &&
mklichee &&
extract-bsp &&
make -j8 &&
pack

source build/envsetup.sh 这里是include各种环境变量,比如就添加了 tiger_cdr-eng 选项,这里先不管它。

lunch就是选择目标板配置了,是在 build/envsetup.sh 中的函数。

接着就是关键的mklichee了,在 device/softwinner/common/vendorsetup.sh
里,深入看下:

function set_environment()
{
        LICHEE_CHIP="sun8iw8p1"
        export CAMLINUX_BUILD_TOP=`pwd`
        export DEVICE_DIR=$CAMLINUX_BUILD_TOP/device/softwinner
        export TARGET_OUT=$CAMLINUX_BUILD_TOP/output
        export OUT_DIR=$CAMLINUX_BUILD_TOP/out
        export LICHEE_DIR=$CAMLINUX_BUILD_TOP/../lichee
        export LICHEE_OUT_DIR=$LICHEE_DIR/out/sun8iw8p1/linux
        export BR_ROOTFS_DIR=$TARGET_OUT/target
        export LICHEE_BR_DIR=${LICHEE_DIR}/buildroot
        export LICHEE_KERN_DIR=${LICHEE_DIR}/linux-3.4
        export LINUXOUT_MODULE_DIR=$LICHEE_KERN_DIR/output/lib/modules/*/*
        export LICHEE_KERN_OUTDIR=$LICHEE_KERN_DIR/output
        export LICHEE_TOOLS_DIR=${LICHEE_DIR}/tools
        export LICHEE_UBOOT_DIR=${LICHEE_DIR}/brandy/u-boot-2011.09
}
function mklichee()
{
    mksetting       #显示目前的配置信息
    mk_info "build lichee ---"
        mkbr && mkkernel
    #    mkbr && mkkernel && mkuboot
    [ $? -ne 0 ] && return 1
        return 0
}

mkbr是运行了 buildroot/scripts/build.sh buildroot linux sun8iw8p1

function mkbr()
{
    mk_info "build buildroot ---"
    local build_script
    build_script="scripts/build.sh"
        LICHEE_PLATFORM="linux"

    (cd ${LICHEE_BR_DIR} && [ -x ${build_script} ] && ./${build_script} "buildroot" ${LICHEE_PLATFORM} ${LICHEE_CHIP})
    [ $? -ne 0 ] && mk_error "build buildroot Failed" && return 1
    mk_info "build buildroot OK."
}
if [ "x${LICHEE_PLATFORM}" = "xlinux" ] ; then
    build_buildroot
    export PATH=${LICHEE_BR_OUT}/external-toolchain/bin:$PATH
    build_external
else
    build_toolchain

LICHEE_PLATFORM并没有被传入,实际执行的是下面这个build_toolchain:

build_toolchain()
{
    local tooldir="${LICHEE_BR_OUT}/external-toolchain"
    mkdir -p ${tooldir}
    if [ -f ${tooldir}/.installed ] ; then
        printf "external toolchain has been installed\n"
    else
        printf "installing external toolchain\n"
        printf "please wait for a few minutes ---\n"
        tar --strip-components=1 \
            -jxf ${LICHEE_BR_DIR}/dl/gcc-linaro.tar.bz2 \
            -C ${tooldir}
        [ $? -eq 0 ] && touch ${tooldir}/.installed
    fi

    export PATH=${tooldir}/bin:${PATH}
}

这里LICHEE_BR_OUT是 lichee/out/sun8iw8p1/linux/common/buildroot

LICHEE_BR_DIR是lichee/buildroot, 需要先导入。

这里使用的linaro版本比较老。注意如果使用较新的gcc反而会出错。

这里就是解压了linaro-gcc,并加入到环境变量。

mkbr看完了,接下来看mkkernel。

function mkkernel()
{
local platformdef=$tdevice
    if [ ! -n $tdevice ]; then
            echo "Please lunch device"
            return 1
    fi

    echo "Make the kernel"  
    echo "platformdef="${platformdef}
    (cd ${LICHEE_KERN_DIR}/; ./build.sh -p ${platformdef})
    [ $? -ne 0 ] && mk_error "build mkkernel fail" && return 1
echo "Make the kernel finish"
    return 0
}

执行的是lichee/linux-3.4/build.sh, 跟下去是执行了:

./scripts/build_${PLATFORM}.sh all

看script目录下,有:

build_crane-cdr.sh      
build_crane-ipc.sh      
build_crane-sdv.sh      
build_crane-standard.sh 
build_rootfs.sh         
build.sh                
build_sun6i.sh         
build_sun8iw8p1.sh      
build_tiger-cdr.sh      
build_tiger-ipc.sh      
build_tiger-standard.sh

就是代表的可以构建的板子型号。我们实际编译的时候只需要执行 build_tiger-cdr.sh 即可。

综上所述,需要剥离camdriod所用的lichee内核,只需要:

  1. 解压buildroot/dl/gcc-linarno.tar.gz 到lichee/out/sun8iw8p1/linux/common/buildroot/external-toolchain,并加入环境变量(这步其实在下一步里包含了)
  2. 执行build_tiger-cdr.sh

启动信息

Starting kernel ---

[sun8i_fixup]: From boot, get meminfo:
    Start:  0x40000000
    Size:   64MB
ion_carveout reserve: 28m@0 28m@0
ion_reserve_common: ion reserve: [0x42400000, 0x44000000]!
[    0.000000] Booting Linux on physical CPU 0
[    0.000000] Linux version 3.4.39 (root@bf756b445919) (gcc version 4.6.3 20120201 (prerelease) (crosstool-NG linaro-1.13.1-2012.02-20120222 - Linaro GCC 2012.02) ) #29 Wed Nov 29 10:53:16 UTC 2017
[    0.000000] bootconsole [earlycon0] enabled
[    0.000000] Initialized persistent memory from 41d20800-41d307ff
[    0.000000] Kernel command line: console=ttyS0,115200 panic=5 rootwait root=/dev/mmcblk0p2 earlyprintk rw
[    0.000000] PID hash table entries: 256 (order: -2, 1024 bytes)
[    0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Memory: 64MB = 64MB total
[    0.000000] Memory: 29312k/29312k available, 36224k 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 : 0xc4800000 - 0xff000000   ( 936 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xc4000000   (  64 MB)
[    0.000000]     modules : 0xbf000000 - 0xc0000000   (  16 MB)
[    0.000000]       .text : 0xc0008000 - 0xc050d000   (5140 kB)
[    0.000000]       .init : 0xc050d000 - 0xc0530000   ( 140 kB)
[    0.000000]       .data : 0xc0530000 - 0xc05ab500   ( 494 kB)
[    0.000000]        .bss : 0xc05ab524 - 0xc068c28c   ( 900 kB)
[    0.000000] NR_IRQS:544
[    0.000000] Architected local timer running at 24.00MHz.
[    0.000000] Switching to timer-based delay loop
[    0.000000] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms
[    0.000000] Console: colour dummy device 80x30
[    0.014545] Calibrating delay loop (skipped), value calculated using timer frequency.. 4800.00 BogoMIPS (lpj=24000000)
[    0.022936] pid_max: default: 32768 minimum: 301
[    0.027778] Mount-cache hash table entries: 512
[    0.030637] CPU: Testing write buffer coherency: ok
[    0.035150] Setting up static identity map for 0x40396048 - 0x403960a0
[    0.040773] devtmpfs: initialized
[    0.045346] pinctrl core: initialized pinctrl subsystem
[    0.049168] NET: Registered protocol family 16
[    0.050362] DMA: preallocated 128 KiB pool for atomic coherent allocations
[    0.056956] script_sysfs_init success
[    0.060951] gpiochip_add: registered GPIOs 0 to 223 on device: sunxi-pinctrl
[    0.068164] sunxi-pinctrl sunxi-pinctrl: initialized sunXi PIO driver
[    0.070438] gpiochip_add: registered GPIOs 1024 to 1031 on device: axp-pinctrl
[    0.078235] persistent_ram: uncorrectable error in header
[    0.080020] persistent_ram: no valid data in buffer (sig = 0x75371537)
[    0.091722] console [ram-1] enabled
[    0.092266] Not Found clk pll_isp in script 
[    0.094113] Not Found clk pll_video in script 
[    0.098719] Not Found clk pll_ve in script 
[    0.100012] Not Found clk pll_periph0 in script 
[    0.104666] Not Found clk pll_de in script 
[    0.113517] bio: create slab <bio-0> at 0
[    0.113966] pwm module init!
[    0.118375] SCSI subsystem initialized
[    0.120028] usbcore: registered new interface driver usbfs
[    0.125313] usbcore: registered new interface driver hub
[    0.130165] usbcore: registered new device driver usb
[    0.135149] twi_chan_cfg()340 - [twi0] has no twi_regulator.
[    0.140018] twi_chan_cfg()340 - [twi1] has no twi_regulator.
[    0.146123] Linux video capture interface: v2.00
[    0.150126] gpiochip_add: gpios 1024..1028 (axp_pin) failed to register
[    0.156916] Advanced Linux Sound Architecture Driver Version 1.0.25.
[    0.160794] Switching to clocksource arch_sys_counter
[    0.171015] NET: Registered protocol family 2
[    0.171466] IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.177306] TCP established hash table entries: 2048 (order: 2, 16384 bytes)
[    0.184207] TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
[    0.190440] TCP: Hash tables configured (established 2048 bind 2048)
[    0.196921] TCP: reno registered
[    0.200126] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.206122] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.212647] NET: Registered protocol family 1
[    0.217253] standby_mode = 1. 
[    0.219870] wakeup src cnt is : 3. 
[    0.223491] pmu1_enable = 0x0. 
[    0.226639] config_pmux_para: script_parser_fetch err. 
[    0.232034] pmu2_enable = 0x0. 
[    0.235126] add_sys_pwr_dm: get ldo name failed
[    0.239818] add_sys_pwr_dm: get ldo name failed
[    0.244317] add_sys_pwr_dm: get ldo name failed
[    0.248900] add_sys_pwr_dm: get ldo name failed
[    0.253610] add_sys_pwr_dm: get ldo name failed
[    0.258090] add_sys_pwr_dm: get ldo name failed
[    0.262796] add_sys_pwr_dm: get ldo name failed
[    0.267274] add_sys_pwr_dm: get ldo name failed
[    0.271877] add_sys_pwr_dm: get ldo name failed
[    0.276566] add_sys_pwr_dm: get ldo name failed
[    0.281061] after inited: sys_mask config = 0x0. 
[    0.285927] dynamic_standby enalbe = 0x0. 
[    0.290049] sunxi_reg_init enter
[    0.295521] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.299326] jffs2: version 2.2. (NAND) (SUMMARY)  © 2001-2006 Red Hat, Inc.
[    0.306584] msgmni has been set to 57
[    0.311246] io scheduler noop registered
[    0.313995] io scheduler deadline registered
[    0.318410] io scheduler cfq registered (default)
[    0.323712] [DISP]disp_module_init
[    0.326990] cmdline,disp=
[    0.329889] [DISP] disp_get_rotation_sw,line:68:disp 0 out of range? g_rot_sw=0
[    0.336609] [DISP] disp_init_connections,line:289:NULL pointer: 0, 0
[    0.344754] [DISP] Fb_map_kernel_logo,line:924:Fb_map_kernel_logo failed!
[    0.352381] [DISP] disp_sys_power_enable,line:387:some error happen, fail to get regulator 
[    0.358275] [DISP] disp_sys_gpio_set_value,line:374:OSAL_GPIO_DevWRITE_ONEPIN_DATA, hdl is NULL
[    0.367297] [DISP]disp_module_init finish
[    0.371458] sw_uart_get_devinfo()1503 - uart0 has no uart_regulator.
[    0.378007] uart0: ttyS0 at MMIO 0x1c28000 (irq = 32) is a SUNXI
[    0.383640] sw_uart_pm()890 - uart0 clk is already enable
[    0.389159] sw_console_se󙞠  0.397781] console [ttyS0] enabled, bootconsole disabled
[    0.397781] console [ttyS0] enabled, bootconsole disabled
[    0.405808] sunxi_spi_chan_cfg()1376 - [spi-0] has no spi_regulator.
[    0.417215] spi spi0: master is unqueued, this is deprecated
[    0.423980] m25p_probe()988 - Use the Dual Mode Read.
[    0.429818] m25p80 spi0.0: found W25q128, expected at25df641
[    0.436364] m25p80 spi0.0: W25q128 (16384 Kbytes)
[    0.442069] Creating 4 MTD partitions on "spi0.0":
[    0.447623] 0x000000000000-0x000000100000 : "uboot"
[    0.454335] 0x000000100000-0x000000110000 : "script"
[    0.461007] 0x000000110000-0x000000510000 : "kernel"
[    0.467737] 0x000000510000-0x000001000000 : "rootfs"
[    0.474560] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.502308] sunxi-ehci sunxi-ehci.1: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.511538] sunxi-ehci sunxi-ehci.1: new USB bus registered, assigned bus number 1
[    0.520232] sunxi-ehci sunxi-ehci.1: irq 104, io mem 0xf1c1a000
[    0.540038] sunxi-ehci sunxi-ehci.1: USB 0.0 started, EHCI 1.00
[    0.547565] hub 1-0:1.0: USB hub found
[    0.552045] hub 1-0:1.0: 1 port detected
[    0.557035] sunxi-ehci sunxi-ehci.1: remove, state 1
[    0.562716] usb usb1: USB disconnect, device number 1
[    0.570093] [DISP] disp_lcd_pwm_enable,line:1021:pwm device hdl is NULL
[    0.577820] sunxi-ehci sunxi-ehci.1: USB bus 1 deregistered
[    0.594381] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.621611] sunxi-ohci sunxi-ohci.1: SW USB2.0 'Open' Host Controller (OHCI) Driver
[    0.630292] sunxi-ohci sunxi-ohci.1: new USB bus registered, assigned bus number 1
[    0.638963] sunxi-ohci sunxi-ohci.1: irq 105, io mem 0xf1c1a400
[    0.704775] hub 1-0:1.0: USB hub found
[    0.709188] hub 1-0:1.0: 1 port detected
[    0.714159] sunxi-ohci sunxi-ohci.1: remove, state 1
[    0.719942] usb usb1: USB disconnect, device number 1
[    0.726383] sunxi-ohci sunxi-ohci.1: USB bus 1 deregistered
[    0.742856] Initializing USB Mass Storage driver---
[    0.748591] usbcore: registered new interface driver usb-storage
[    0.755417] USB Mass Storage support registered.
[    0.761162] file system registered
[    0.766892] android_usb gadget: Mass Storage Function, version: 2009/09/11
[    0.774821] android_usb gadget: Number of LUNs=1
[    0.780100]  lun0: LUN: removable file: (no medium)
[    0.786312] android_usb gadget: android_usb ready
[    0.791843] sunxikbd_script_init: key para not found, used default para. 
[    0.800884] sunxi-rtc sunxi-rtc: rtc core: registered sunxi-rtc as rtc0
[    0.808628] [VFE]cci probe start cci_sel = 0!
[    0.813793] [VFE]cci probe end cci_sel = 0!
[    0.818593] [VFE]cci_init end
[    0.822038] [VFE]Welcome to Video Front End driver
[    0.827986] [VFE]pdev->id = 0
[    0.831435] [VFE]dev->mipi_sel = 0
[    0.835324] [VFE]dev->vip_sel = 0
[    0.839114] [VFE]dev->isp_sel = 0
[    0.849164] [VFE_WARN]vfe vpu clock is null
[    0.860599] [VFE]pdev->id = 1
[    0.864021] [VFE]dev->mipi_sel = 1
[    0.868014] [VFE]dev->vip_sel = 1
[    0.871864] [VFE]dev->isp_sel = 0
[    0.875672] [VFE]probe_work_handle start!
[    0.880358] [VFE]------------------------..vfe clk open!---------------------..
[    0.889010] [VFE]v4l2 subdev register input_num = 0
[    0.894683] [VFE_WARN]vfe vpu clock is null
[    0.899688] [VFE_ERR]vip1 request pinctrl handle for device [csi1] failed!
[    0.907603] [VFE_ERR]get regulator csi_avdd error!
[    0.913056] [VFE_ERR]vfe_device_regulator_get error at input_num = 0
[    0.920482] [VFE]vfe_init end
[    0.924426] platform reg-20-cs-dcdc2: Driver reg-20-cs-dcdc2 requests probe deferral
[    0.933586] [VFE]V4L2 device registered as video0
[    0.938969] [VFE]------------------------..vfe clk close!---------------------..
[    0.947676] platform reg-20-cs-dcdc3: Driver reg-20-cs-dcdc3 requests probe deferral
[    0.956440] [VFE]probe_work_handle end!
[    0.960938] [VFE]probe_work_handle start!
[    0.965515] [VFE]------------------------..vfe clk open!---------------------..
[    0.974033] platform reg-20-cs-ldo1: Driver reg-20-cs-ldo1 requests probe deferral
[    0.982739] platform reg-20-cs-ldo2: Driver reg-20-cs-ldo2 requests probe deferral
[    0.991682] [VFE]v4l2 subdev register input_num = 0
[    0.997227] [VFE]vfe sensor detect start! input_num = 0
[    1.003274] [VFE]Find sensor name is "ov2640", i2c address is 60, type is "YUV" !
[    1.011824] [VFE]Sub device register "ov2640" i2c_addr = 0x60 start!
[    1.018998] [VFE_ERR]Error registering v4l2 subdevice No such device!
[    1.026388] [VFE_ERR]vfe sensor register check error at input_num = 0
[    1.033813] platform reg-20-cs-ldo3: Driver reg-20-cs-ldo3 requests probe deferral
[    1.042602] platform reg-20-cs-ldo4: Driver reg-20-cs-ldo4 requests probe deferral
[    1.051390] platform reg-20-cs-ldoio0: Driver reg-20-cs-ldoio0 requests probe deferral
[    1.060339] sunxi_wdt_init_module: sunxi WatchDog Timer Driver v1.0
[    1.067734] sunxi_wdt_probe: devm_ioremap return wdt_reg 0xf1c20ca0, res->start 0x01c20ca0, res->end 0x01c20cbf
[    1.079242] [VFE]V4L2 device registered as video1
[    1.084960] [VFE]------------------------..vfe clk close!---------------------..
[    1.093623] sunxi_wdt_probe: initialized (g_timeout=16s, g_nowayout=0)
[    1.101032] wdt_enable, write reg 0xf1c20cb8 val 0x00000000
[    1.107445] wdt_set_tmout, write 0x000000b0 to mode reg 0xf1c20cb8, actual timeout 16 sec
[    1.116779] [VFE]probe_work_handle end!
[    1.127839] sunxi_leds_fetch_sysconfig_para leds is not used in config
[    1.135343] =========script_get_err============
[    1.140895] usbcore: registered new interface driver usbhid
[    1.147192] usbhid: USB HID core driver
[    1.152295] ashmem: initialized
[    1.156010] logger: created 256K log 'log_main'
[    1.161344] logger: created 32K log 'log_events'
[    1.166840] logger: created 32K log 'log_radio'
[    1.173330] logger: created 32K log 'log_system'
[    1.181135] *******************Try sdio*******************
[    1.188578] script_get_item return type err, consider it no ldo
[    1.196448] asoc: sndcodec <-> sunxi-codec mapping ok
[    1.203087] *******************Try sd *******************
[    1.210630] TCP: cubic registered
[    1.214424] NET: Registered protocol family 17
[    1.219580] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
[    1.228464] ThumbEE CPU extension supported.
[    1.233373] Registering SWP/SWPB emulation handler
[    1.243467] platform reg-20-cs-ldoio0: Driver reg-20-cs-ldoio0 requests probe deferral
[    1.252523] platform reg-20-cs-ldo4: Driver reg-20-cs-ldo4 requests probe deferral
[    1.261210] platform reg-20-cs-ldo3: Driver reg-20-cs-ldo3 requests probe deferral
[    1.269839] platform reg-20-cs-ldo2: Driver reg-20-cs-ldo2 requests probe deferral
[    1.278387] platform reg-20-cs-ldo1: Driver reg-20-cs-ldo1 requests probe deferral
[    1.287040] platform reg-20-cs-dcdc3: Driver reg-20-cs-dcdc3 requests probe deferral
[    1.295877] platform reg-20-cs-dcdc2: Driver reg-20-cs-dcdc2 requests probe deferral
[    1.304676] sunxi-rtc sunxi-rtc: setting system clock to 1970-01-01 00:52:23 UTC (3143)
[    1.315547] ALSA device list:
[    1.318966]   #0: audiocodec
[    1.322763] Waiting for root device /dev/mmcblk0p2---
[    1.330265] mmc0: new high speed SDHC card at address 0007
[    1.336986] mmcblk0: mmc0:0007 SD16G 14.4 GiB 
[    1.344244]  mmcblk0: p1 p2
[    1.348240] mmcblk mmc0:0007: Card claimed for testing.
[    1.354284] mmc0:0007: SD16G 14.4 GiB 
[    1.358650] platform reg-20-cs-dcdc2: Driver reg-20-cs-dcdc2 requests probe deferral
[    1.367505] *******************sd init ok*******************
[    1.373971] platform reg-20-cs-dcdc3: Driver reg-20-cs-dcdc3 requests probe deferral
[    1.382857] platform reg-20-cs-ldo1: Driver reg-20-cs-ldo1 requests probe deferral
[    1.392791] platform reg-20-cs-ldo2: Driver reg-20-cs-ldo2 requests probe deferral
[    1.401342] platform reg-20-cs-ldo3: Driver reg-20-cs-ldo3 requests probe deferral
[    1.409966] platform reg-20-cs-ldo4: Driver reg-20-cs-ldo4 requests probe deferral
[    1.418782] platform reg-20-cs-ldoio0: Driver reg-20-cs-ldoio0 requests probe deferral
[    1.430110] fs_names=/dev/root
[    1.433712] fs_name=ext3
[    1.439951] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[    1.451442] err=-22
[    1.453911] fs_name=ext2
[    1.456821] *******************Try sdio*******************
[    1.465105] EXT4-fs (mmcblk0p2): couldn't mount as ext2 due to feature incompatibilities
[    1.474453] err=-22
[    1.476890] fs_name=ext4
[    1.489053] mmc1: new high speed SDIO card at address 0001
[    1.495719] *******************sdio init ok*******************
[    2.726144] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    2.735371] VFS: Mounted root (ext4 filesystem) on device 179:2.
[    2.742251] err=0
[    2.747567] devtmpfs: mounted
[    2.751204] Freeing init memory: 140K
[    2.930884] systemd[1]: systemd 215 running in system mode. (+PAM +AUDIT +SELINUX +IMA +SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ -SECCOMP -APPARMOR)
[    2.946338] systemd[1]: Detected architecture 'arm'.

Welcome to Debian GNU/Linux 8 (jessie)!

[    3.001376] systemd[1]: Failed to insert module 'autofs4'
[    3.007740] systemd[1]: Failed to insert module 'ipv6'
[    3.016049] systemd[1]: Set hostname to <LicheePi>.
[    3.386763] systemd[1]: Cannot add dependency job for unit dbus.socket, ignoring: Unit dbus.socket failed to load: No such file or directory.
[    3.401457] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory.
[    3.420884] systemd[1]: Expecting device dev-ttyS0.device---
        Expecting device dev-ttyS0.device---
[    3.450242] systemd[1]: Starting Forward Password Requests to Wall Directory Watch.
[    3.459321] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[    3.468062] systemd[1]: Starting Remote File Systems (Pre).
[  OK  ] Reached target Remote File Systems (Pre).
[    3.490182] systemd[1]: Reached target Remote File Systems (Pre).
[    3.497335] systemd[1]: Starting Dispatch Password Requests to Console Directory Watch.
[    3.506789] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[    3.515820] systemd[1]: Starting Paths.
[  OK  ] Reached target Paths.
[    3.540183] systemd[1]: Reached target Paths.
[    3.545244] systemd[1]: Starting Encrypted Volumes.
[  OK  ] Reached target Encrypted Volumes.
[    3.570180] systemd[1]: Reached target Encrypted Volumes.
[    3.576595] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[    3.587363] systemd[1]: Starting Swap.
[  OK  ] Reached target Swap.
[    3.610166] systemd[1]: Reached target Swap.
[    3.615133] systemd[1]: Expecting device dev-mmcblk0p1.device---
        Expecting device dev-mmcblk0p1.device---
[    3.640202] systemd[1]: Starting Root Slice.
[  OK  ] Created slice Root Slice.
[    3.660178] systemd[1]: Created slice Root Slice.
[    3.665716] systemd[1]: Starting /dev/initctl Compatibility Named Pipe.
[  OK  ] Listening on /dev/initctl Compatibility Named Pipe.
[    3.690188] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[    3.698235] systemd[1]: Starting Delayed Shutdown Socket.
[  OK  ] Listening on Delayed Shutdown Socket.
[    3.720181] systemd[1]: Listening on Delayed Shutdown Socket.
[    3.726873] systemd[1]: Starting Journal Socket (/dev/log).
[  OK  ] Listening on Journal Socket (/dev/log).
[    3.750183] systemd[1]: Listening on Journal Socket (/dev/log).
[    3.757124] systemd[1]: Starting udev Control Socket.
[  OK  ] Listening on udev Control Socket.
[    3.780183] systemd[1]: Listening on udev Control Socket.
[    3.786538] systemd[1]: Starting udev Kernel Socket.
[  OK  ] Listening on udev Kernel Socket.
[    3.810188] systemd[1]: Listening on udev Kernel Socket.
[    3.816409] systemd[1]: Starting User and Session Slice.
[  OK  ] Created slice User and Session Slice.
[    3.840194] systemd[1]: Created slice User and Session Slice.
[    3.846923] systemd[1]: Starting Journal Socket.
[  OK  ] Listening on Journal Socket.
[    3.870194] systemd[1]: Listening on Journal Socket.
[    3.876115] systemd[1]: Starting Sockets.
[  OK  ] Reached target Sockets.
[    3.900178] systemd[1]: Reached target Sockets.
[    3.905463] systemd[1]: Starting System Slice.
[  OK  ] Created slice System Slice.
[    3.930189] systemd[1]: Created slice System Slice.
[    3.935980] systemd[1]: Started Create list of required static device nodes for the current kernel.
[    3.946850] systemd[1]: Mounting Debug File System---
        Mounting Debug File System---
[    3.972002] systemd[1]: Mounted POSIX Message Queue File System.
[    3.985664] systemd[1]: Starting Load Kernel Modules---
        Starting Load Kernel Modules---
[    4.016065] systemd[1]: Started Set Up Additional Binary Formats.
[    4.024319] systemd[1]: Mounted Huge Pages File System.
[    4.036274] systemd[1]: Starting udev Coldplug all Devices---
        Starting udev Coldplug all Devices---
[    4.062631] systemd[1]: Starting Create Static Device Nodes in /dev---
        Starting Create Static Device Nodes in /dev---
[    4.092537] systemd[1]: Starting system-getty.slice.
[  OK  ] Created slice system-getty.slice.
[    4.112748] systemd[1]: Created slice system-getty.slice.
[    4.122317] systemd[1]: Starting system-serial\x2dgetty.slice.
[  OK  ] Created slice system-serial\x2dgetty.slice.
[    4.150268] systemd[1]: Created slice system-serial\x2dgetty.slice.
[    4.157615] systemd[1]: Started File System Check on Root Device.
[    4.164807] systemd[1]: Starting Journal Service---
        Starting Journal Service---
[  OK  ] Started Journal Service.
[    4.210299] systemd[1]: Started Journal Service.
[  OK  ] Reached target Slices.
[  OK  ] Mounted Debug File System.
[  OK  ] Started Load Kernel Modules.
[  OK  ] Started Create Static Device Nodes in /dev.
        Starting udev Kernel Device Manager---
        Starting Apply Kernel Variables---
[  OK  ] Started udev Kernel Device Man[    4.372555] systemd-udevd[69]: starting version 215
ager.
[  OK  ] Started udev Coldplug all Devices.
[  OK  ] Started Apply Kernel Variables.
        Starting Copy rules generated while the root was ro---
        Starting LSB: Set preliminary keymap---
[  OK  ] Started Copy rules generated while the root was ro.
[  OK  ] Started LSB: Set preliminary keymap.
        Starting Remount Root and Kernel File Systems---
[    4.640531] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[  OK  ] Started Remount Root and Kernel File Systems.
[  OK  ] Reached target Local File Systems (Pre).
        Starting Load/Save Random Seed---
[  OK  ] Reached target Sound Card.
[  OK  ] Started Load/Save Random Seed.
[    5.012110] [VFE]vfe_open
[  OK  [    5.043465] [VFE]vfe_open
] Found device /dev/mmcblk0p1.
[    5.058511] [VFE]------------------------..vfe clk open!---------------------..
[    5.082179] [VFE]------------------------..vfe clk open!---------------------..
[  OK  ] Found device /dev/ttyS0.
[    5.112320] [VFE]vfe_open ok
[    5.115853] [VFE]vfe_close
[    5.118958] [VFE]vfe select input flag = 0, s_input have not be used .
[    5.126480] [VFE]------------------------..vfe clk close!---------------------..
[    5.144821] [VFE]vfe_open ok
[    5.148348] [VFE]vfe_close
[    5.151598] [VFE]vfe select input flag = 0, s_input have not be used .
[    5.158972] [VFE]------------------------..vfe clk close!---------------------..
        Mounting /boot---
[    5.224773] [VFE]vfe_close end
[    5.282919] [VFE]vfe_close end
[  OK  ] Mounted /boot.
[  OK  ] Reached target Local File Systems.
        Starting Create Volatile Files and Directories---
[  OK  ] Reached target Remote File Systems.
        Starting Trigger Flushing of Journal to Persistent Storage---
        Starting LSB: Set console font and keymap---
        Starting LSB: Raise network interfaces---.
[  OK  ] Started LSB: Set console font and keymap.
[    5.519209] systemd-journald[65]: Received request to flush runtime journal from PID 1
[  OK  ] Started Trigger Flushing of Journal to Persistent Storage.
[  OK  ] Started Create Volatile Files and Directories.
        Starting Update UTMP about System Boot/Shutdown---
[  OK  ] Started Update UTMP about System Boot/Shutdown.
[  OK  ] Started LSB: Raise network interfaces..
[  OK  ] Reached target Network.
[  OK  ] Reached target System Initialization.
[  OK  ] Reached target Timers.
        Starting Restore Sound Card State---
[  OK  ] Reached target Basic System.
        Starting Regular background program processing daemon---
[  OK  ] Started Regular background program processing daemon.
        Starting OpenBSD Secure Shell server---
[  OK  ] Started OpenBSD Secure Shell server.
        Starting /etc/rc.local Compatibility---
        Starting Permit User Sessions---
        Starting getty on tty2-tty6 if dbus and logind are not available---
[  OK  ] Started Restore Sound Card State.
[  OK  ] Started /etc/rc.local Compatibility.
[  OK  ] Started Permit User Sessions.
        Starting Getty on tty2---
[  OK  ] Started Getty on tty2.
        Starting Getty on tty1---
[  OK  ] Started Getty on tty1.
        Starting Serial Getty on ttyS0---
[  OK  ] Started Serial Getty on ttyS0.
[  OK  ] Started getty on tty2-tty6 if dbus and logind are not available.
        Starting Getty on tty6---
[  OK  ] Started Getty on tty6.
        Starting Getty on tty5---
[  OK  ] Started Getty on tty5.
        Starting Getty on tty4---
[  OK  ] Started Getty on tty4.
        Starting Getty on tty3---
[  OK  ] Started Getty on tty3.
[  OK  ] Reached target Login Prompts.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
        Starting Update UTMP about System Runlevel Changes---
[  OK  ] Started Update UTMP about System Runlevel Changes.

Debian GNU/Linux 8 LicheePi ttyS0

LicheePi login: root