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| pi2 with  sdcard android  image :shell command  “reboot ”  may not work ,it  blocks  , I have to power off then power on. 
 root@dolphin-orangepi-plus:/ # reboot
 [ 1029.478526] SysRq : Emergency Remount R/O
 [ 1029.483019] The process is "init" (pid 1)
 [ 1030.660947] Restarting system.
 [ 1030.664411] Restarting Linux version 3.4.39 (allwinner@steven) (gcc version 4.6.3 20120201 (prerelease) (crosstool-NG linaro-1.13.1-2012.02-20120222 - Linaro GCC 2012.02) ) #6 SMP PREEMPT Mon Mar 23 14:37:37 HKT 2015
 [ 1030.664441]
 HELLO! BOOT0 is starting!
 boot0 version : 4.0.0
 fel_flag = 0x00000000
 rtc[0] value = 0x00000000
 rtc[1] value = 0x000000e0
 rtc[2] value = 0x00000000
 rtc[3] value = 0x0000000f
 rtc[4] value = 0x00000000
 rtc[5] value = 0x00000000
 rtc[6] value = 0x00000000
 rtc[7] value = 0x00000000
 DRAM DRIVE INFO: V0.8
 DRAM Type = 3 (2
  DR2,3  DR3,6  PDDR2,7  PDDR3) DRAM CLK = 672 MHz
 DRAM zq value: 003b3bfb
 READ DQS LCDL = 00171717
 DRAM SIZE =1024 M
 odt delay
 dram size =1024
 card boot number = 0
 card no is 0
 sdcard 0 line count 4
 [mmc]: mmc driver ver 2014-12-10 21:20:39
 [mmc]: ***Try SD card 0***
 [mmc]: SD/MMC Card: 4bit, capacity: 29476MB
 [mmc]: vendor: Man 00035344 Snr 00b115dd
 [mmc]: product: SL32G
 [mmc]: revision: 8.0
 [mmc]: ***SD/MMC 0 init OK!!!***
 sdcard 0 init ok
 ERROR! NOT find the head of uboot.
 The size of uboot is 000dc000.
 sum=264121ac
 src_sum=257721ac
 Fail in checking uboot.
 read all u-boot blk failed
 Ready to disable icache.
 
 
 HELLO! BOOT0 is starting!
 boot0 version : 4.0.0
 fel_flag = 0x00000000
 rtc[0] value = 0x00000000
 rtc[1] value = 0x00000000
 rtc[2] value = 0x00000000
 rtc[3] value = 0x00000000
 rtc[4] value = 0x00000000
 rtc[5] value = 0x00000000
 rtc[6] value = 0x00000000
 rtc[7] value = 0x00000000
 DRAM DRIVE INFO: V0.8
 DRAM Type = 3 (2
  DR2,3  DR3,6  PDDR2,7  PDDR3) DRAM CLK = 672 MHz
 DRAM zq value: 003b3bfb
 READ DQS LCDL = 001c1c1d
 DRAM SIZE =1024 M
 odt delay
 dram size =1024
 card boot number = 0
 card no is 0
 sdcard 0 line count 4
 [mmc]: mmc driver ver 2014-12-10 21:20:39
 [mmc]: ***Try SD card 0***
 [mmc]: SD/MMC Card: 4bit, capacity: 29476MB
 [mmc]: vendor: Man 00035344 Snr 00b115dd
 [mmc]: product: SL32G
 [mmc]: revision: 8.0
 [mmc]: ***SD/MMC 0 init OK!!!***
 sdcard 0 init ok
 ERROR! NOT find the head of uboot.
 The size of uboot is 000dc000.
 sum=257721ac
 src_sum=257721ac
 Succeed in loading uboot from sdmmc flash.
 Ready to disable icache.
 Jump to secend Boot.
 SUNXI_NORMAL_MODE
 [      0.367]e mode
 
 U-Boot 2011.09-rc1 (Mar 13 2015 - 12:54:51) Allwinner Technology
 
 [      0.374]version: 1.1.0
 normal mode
 [      0.382]pmbus:  ready
 not set main pmu id
 axp_probe error
 [      0.397]PMU: pll1 1200 Mhz,PLL6=600 Mhz
 AXI=400 Mhz,AHB=200 Mhz, APB1=100 Mhz
 sid read already
 fel key new mode
 run key detect
 no key found
 no key input
 dram_para_set start
 dram_para_set end
 normal mode
 [      0.427]DRAM:  1 GiB
 relocation Offset is: 35af9000
 [box standby] read rtc = 0x0
 [box_start_os] mag be start_type no use
 user_gpio config
 user_gpio ok
 gic: normal or no secure os mode
 workmode = 0
 MMC:    0
 [      0.502][mmc]: mmc driver ver 2014-12-10 9:23:00
 [      0.507][mmc]: get sdc_phy_wipe fail.
 [      0.511][mmc]: get sdc0 sdc_erase fail.
 [      0.515][mmc]: get sdc_f_max fail,use default 50000000Hz
 [      0.520][mmc]: get sdc_ex_dly_used fail,use default dly
 [      0.526][mmc]: SUNXI SD/MMC: 0
 [      0.539][mmc]: *Try SD card 0*
 [      0.588][mmc]: CID 0x3534453 0x4c333247 0x8000b115 0xdd00f4b3
 [      0.593][mmc]: mmc clk 50000000
 [      0.597][mmc]: SD/MMC Card: 4bit, capacity: 29476MB
 [      0.602][mmc]: boot0 capacity: 0KB,boot1 capacity: 0KB
 [      0.607][mmc]: ***SD/MMC 0 init OK!!!***
 [      0.612][mmc]: erase_grp_size:0x1WrBlk * 0x200 = 0x200 Byte
 [      0.617][mmc]: secure_feature 0x0
 [      0.621][mmc]: secure_removal_type  0x0
 [      0.625]sunxi flash init ok
 script config pll_de to 864 Mhz
 Not Found clk pll_video1 in script
 script config pll_video to 297 Mhz
 [boot]disp_init_tv
 [DISP_TV] disp_init_tv enter g_tv_used
 screen 0 do not support TV TYPE!
 [BOOOT_DISP_TV] disp tv device_registered
 unable to find regulator vcc-hdmi-18 from [pmu1_regu] or [pmu2_regu]
 enable power vcc-hdmi-18, ret=-1
 DRV_DISP_Init end
 boot_disp.auto_hpd=1
 auto hpd check has 50 times!
 read byte = 10
 [get_display_resolution] = 20b
 get the output mode from android(saved by type[2]) is 11
 attched ok, mgr1<-->device1, type=2, mode=11----
 ready to set mode
 disp_tv_enable
 [      1.470]finally, output_type=0x2, output_mode=0xb, screen_id=0x1, disp_para=0x20b0000
 In:    serial
 Out:  serial
 Err:  serial
 --------fastboot partitions--------
 -total partitions:14-
 -name-        -start-      -size-
 bootloader  : 1000000      1000000
 env        : 2000000      1000000
 boot        : 3000000      1000000
 system      : 4000000      30000000
 misc        : 34000000      1000000
 recovery    : 35000000      2000000
 sysrecovery : 37000000      30000000
 private    : 67000000      1000000
 Reserve0    : 68000000      1000000
 klog        : 69000000      1000000
 Reserve1    : 6a000000      2000000
 Reserve2    : 6c000000      1000000
 cache      : 6d000000      28000000
 UDISK      : 95000000      0
 -----------------------------------
 base bootcmd=run setargs_nand boot_normal
 bootcmd set setargs_mmc
 key 0
 cant find rcvy value
 cant find fstbt value
 misc partition found
 to be run cmd=run setargs_mmc boot_normal
 [      1.580][mmc]: MMC Device 2 not found
 [      1.584][mmc]: Can not find mmc dev
 [      1.587][mmc]: read first backup failed in fun sdmmc_secure_storage_read line 1849
 sunxi_secstorage_read fail
 get secure storage map err
 the user data'magic is bad
 WORK_MODE_BOOT
 adver not need show
 sunxi_bmp_logo_display
 f_read btr over hd12896
 read byte = 3686456
 [      1.791]screen_id =1, screen_width =720, screen_height =576
 [      1.796]frame buffer address 46400000
 [      1.800]Hit any key to stop autoboot:  0
 read boot or recovery all
 [      2.346]sunxi flash read
  ffset 3000000, 12981523 bytes OK [      2.354]ready to boot
 board_display_setenv:  disp_para=20b0000
 [      2.360][mmc]: MMC Device 2 not found
 [      2.364][mmc]:  mmc  not find,so not exit
 [      2.368]
 Starting kernel ...
 
 [sun8i_fixup]: From boot, get meminfo:
 Start:  0x40000000
 Size:  1024MB
 ion_carveout reserve: 160m@0 256m@0 130m@1 200m@1
 ion_reserve_common: ion reserve: [0x70000000, 0x80000000]!
 [    0.392554] can't get item for emac_power gpio !
 [    0.649556] ls_fetch_sysconfig_para: type err  device_used = -427573448.
 [    0.657904] tscdev_init: tsc driver is disabled
 [    0.664531] [cpu_freq] ERR:get cpu extremity frequency from sysconfig failed, use max_freq
 [    0.691952] sunxi_oops: heming add OOPS_INFO_ADDR = -20
 [    0.742123] ths_fetch_sysconfig_para: type err  device_used = 1.
 [    0.756538] init: /init.rc: 168: invalid option 'setprop'
 [    0.800471] init: open path: /dev/bus/usb/001/001
 [    0.980720] init: open path: /dev/bus/usb/002/002
 [    1.181009] init: open path: /dev/bus/usb/002/001
 [    1.330199] init: open path: /dev/bus/usb/002/002
 [    1.530126] init: open path: /dev/bus/usb/002/003
 [    1.800462] init: open path: /dev/bus/usb/002/003
 [    2.064324] init: open path: /dev/bus/usb/003/001
 [    2.220947] init: open path: /dev/bus/usb/004/001
 [    2.386324] init: /dev/hw_random not found
 [    2.391173] init: defined DONT_SHOW_INITLOGO
 [    2.551665] init: start e2fsck listening...
 [    3.066786] init: dont need format /dev/block/by-name/private
 [    3.256742] Failed to get mali parameter!
 [    3.463124] [SPDIF]sunxi-spdif cannot find any using configuration for controllers, return directly!
 [    3.490422] [SPDIF]sndspdif cannot find any using configuration for controllers, return directly!
 [    3.556281] init: C_IN_START
 [    3.559365] init: path = /dev/block/by-name/cache
 [    3.564668] init: C_IN_START
 [    3.567897] init: path = /dev/block/by-name/UDISK
 [    3.679080] init: /dev/hw_random not found
 [    3.695467] healthd: Could not open /sys/class/power_supply
 [    3.697535] init: cannot find '/system/etc/install-recovery.sh', disabling 'flash_recovery'
 [    3.711102] healthd: No charger supplies found
 [    3.811566] android_usb: already disabled
 [    3.816278] init: using deprecated syntax for specifying property 'sys.usb.config', use ${name} instead
 [    3.827430] init: using deprecated syntax for specifying property 'sys.usb.config', use ${name} instead
 root@dolphin-orangepi-plus:/ # [  15.010206] init: sys_prop: permission denied uid:1003  name:service.bootanim.exit
 [  17.078111] qtaguid: iface_stat: stat_update() wlan0 not found
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