Codewalker: 7월 2015

2015년 7월 27일 월요일

How to write images without fastboot on ODROID-XU4(android)

You can not use fastboot on ODROID-XU4, because It doesn't have USB otg port.

How to write images?

First! setup adb connection or copy image to fat partition.

http://codewalkerster.blogspot.kr/2015/07/adb-connect-over-tcpip-when-multiple.html

Push image to fat partition.

$ adb push xxxx.img /storage/sdcard0/
$ adb reboot

Enter u-boot prompt.

U-Boot 2012.07-00029-g0e9204d-dirty (Jul 17 2015 - 15:38:42) for Exynos5422

CPU: Exynos5422 Rev0.1 [Samsung SOC on SMP Platform Base on ARM CortexA7]
APLL = 800MHz, KPLL = 800MHz
MPLL = 532MHz, BPLL = 825MHz

Board: HardKernel ODROID
DRAM: 2 GiB
WARNING: Caches not enabled

TrustZone Enabled BSP
BL1 version: �/� ⁁
VDD_KFC: 0x44
LDO19: 0xf2

Checking Boot Mode ... SDMMC
MMC: S5P_MSHC2: 0, S5P_MSHC0: 1
MMC Device 0: 7.4 GiB
MMC Device 1: [ERROR] response timeout error : 00000104 cmd 1
Card did not respond to voltage select!
*** Warning - bad CRC, using default environment

In: serial
Out: serial
Err: serial
Net: No ethernet found.
Double Press 'Enter' to stop autoboot: 0
Exynos5422 #

Example for zImage-dtb

Exynos5422 # fatload mmc 0:1 40008000 zImage-dtb
there are pending interrupts 0x00000001
reading zImage-dtb

4718814 bytes read
Exynos5422 # movi write kernel 0 40008000
writing kernel..device 0 Start 1263, Count 16384
MMC write: dev # 0, block # 1263, count 16384 ... 16384 blocks write: OK
completed
Exynos5422 #

Example for system.img

Exynos5422 # fatload mmc 0:1 40000000 system.img

there are pending interrupts 0x00000001

reading system.img

355139392 bytes read

Exynos5422 # fastboot flash system 40000000 0

[Partition table on MoviNAND]

ptn 0 name='fwbl1' start=0x0 len=N/A (use hard-coded info. (cmd: movi))

ptn 1 name='bl2' start=N/A len=N/A (use hard-coded info. (cmd: movi))

ptn 2 name='bootloader' start=N/A len=N/A (use hard-coded info. (cmd: movi))

ptn 3 name='tzsw' start=N/A len=N/A (use hard-coded info. (cmd: movi))

ptn 4 name='kernel' start=N/A len=N/A (use hard-coded info. (cmd: movi))

ptn 5 name='ramdisk' start=N/A len=0x800000(~8192KB) (use hard-coded info. (cmd)

ptn 6 name='system' start=0x42B5800 len=0x40648800(~1055010KB)

ptn 7 name='userdata' start=0x448FE000 len=0x80527800(~2102430KB)

ptn 8 name='cache' start=0xC4E25800 len=0x1036C800(~265650KB)

ptn 9 name='fat' start=0xD5192000 len=0x1002E5800(~4197270KB)

flashing 'system'

Compressed ext4 image

*** erase start block 0x215ac ***

*** erase block length 0x202ff0 ***

mmc erase user 0 21800 202c00

MMC erase: dev # 0, block # 137216, count 2108416 ... START: 137216 BLOCK: 21086

high_capacity: 1

Capacity: 2

byte_addressing

before_send_cmd

start_addr

end_addr

erase_addr

Erase

........................................

..........

1.0 GB erase Done

2108416 blocks erase: OK

MMC write: dev # 0, block # 136620, count 8 ... 8 blocks write: OK

MMC write: dev # 0, block # 136628, count 8 ... 8 blocks write: OK

MMC write: dev # 0, block # 136636, count 504 ... 504 blocks write: OK

......

.....

You can find other command to write image in this boot.ini files.

boot.ini for eMMC

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
#------------------------------------------------------------------------------------------------------
#
# EMMC to EMMC Recovery boot.ini text file
#
#------------------------------------------------------------------------------------------------------
ODROIDXU-UBOOT-CONFIG
#------------------------------------------------------------------------------------------------------
# BL1 write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 bl1.bin
emmc open 0
movi w z f 0 40008000
emmc close 0
#------------------------------------------------------------------------------------------------------
# BL2 write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 bl2.bin
emmc open 0
movi w z b 0 40008000
emmc close 0
#------------------------------------------------------------------------------------------------------
# Bootloader write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 u-boot.bin
emmc open 0
movi w z u 0 40008000
emmc close 0
#------------------------------------------------------------------------------------------------------
# Turst Zone Soft Ware write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 tzsw.bin
emmc open 0
movi w z t 0 40008000
emmc close 0
#------------------------------------------------------------------------------------------------------
# UBOOT ENV Erase
#------------------------------------------------------------------------------------------------------
mmc write 0 40008000 0x4CF 0x20
#------------------------------------------------------------------------------------------------------
# Kernel Image write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 zImage-dtb
movi write kernel 0 40008000

#------------------------------------------------------------------------------------------------------
# System Image write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40000000 system.img

#------------------------------------------------------------------------------------------------------
# Userdata Image write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 57000000 userdata.img

#------------------------------------------------------------------------------------------------------
# Cache Image write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 61000000 cache.img

#------------------------------------------------------------------------------------------------------
# Partition Create to eMMC
#------------------------------------------------------------------------------------------------------
fdisk -c 0

#------------------------------------------------------------------------------------------------------
fastboot flash system 40000000 0
fastboot flash userdata 57000000 0
fastboot flash cache 61000000 0

#------------------------------------------------------------------------------------------------------
# SD/eMMC FAT Format
#------------------------------------------------------------------------------------------------------
fatformat mmc 0:1

reset
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

boot.ini for SD

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
#------------------------------------------------------------------------------------------------------
#
# SD to SD Recovery boot.ini text file
#
#------------------------------------------------------------------------------------------------------
ODROIDXU-UBOOT-CONFIG

#------------------------------------------------------------------------------------------------------
# BL1 write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 bl1.bin
movi w f 0 40008000
#------------------------------------------------------------------------------------------------------
# BL2 write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 bl2.bin
movi w b 0 40008000
#------------------------------------------------------------------------------------------------------
# Bootloader write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 u-boot.bin
movi w u 0 40008000
#------------------------------------------------------------------------------------------------------
# Turst Zone Soft Ware write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 tzsw.bin
movi w t 0 40008000
#------------------------------------------------------------------------------------------------------
# UBOOT ENV Erase
#------------------------------------------------------------------------------------------------------
mmc write 0 40008000 0x4CF 0x20
#------------------------------------------------------------------------------------------------------
# Kernel Image write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 zImage-dtb
movi write kernel 0 40008000

#------------------------------------------------------------------------------------------------------
# System Image write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40000000 system.img

#------------------------------------------------------------------------------------------------------
# Userdata Image write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 57000000 userdata.img

#------------------------------------------------------------------------------------------------------
# Cache Image write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 61000000 cache.img

#------------------------------------------------------------------------------------------------------
# Partition Create to eMMC
#------------------------------------------------------------------------------------------------------
fdisk -c 0

#------------------------------------------------------------------------------------------------------
fastboot flash system 40000000 0
fastboot flash userdata 57000000 0
fastboot flash cache 61000000 0

#------------------------------------------------------------------------------------------------------
# SD/eMMC FAT Format
#------------------------------------------------------------------------------------------------------
fatformat mmc 0:1

reset
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

boot.ini for SD to eMMC

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
#------------------------------------------------------------------------------------------------------
#
# EMMC to EMMC Recovery boot.ini text file
#
#------------------------------------------------------------------------------------------------------
ODROIDXU-UBOOT-CONFIG
#------------------------------------------------------------------------------------------------------
# BL1 write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 bl1.bin
emmc open 1
movi w z f 1 40008000
emmc close 1
#------------------------------------------------------------------------------------------------------
# BL2 write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 bl2.bin
emmc open 1
movi w z b 1 40008000
emmc close 1
#------------------------------------------------------------------------------------------------------
# Bootloader write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 u-boot.bin
emmc open 1
movi w z u 1 40008000
emmc close 1
#------------------------------------------------------------------------------------------------------
# Turst Zone Soft Ware write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 tzsw.bin
emmc open 1
movi w z t 1 40008000
emmc close 1
#------------------------------------------------------------------------------------------------------
# UBOOT ENV Erase
#------------------------------------------------------------------------------------------------------
mmc write 1 40008000 0x4CF 0x20
#------------------------------------------------------------------------------------------------------
# Kernel Image write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40008000 zImage-dtb
movi write kernel 1 40008000

#------------------------------------------------------------------------------------------------------
# System Image write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 40000000 system.img

#------------------------------------------------------------------------------------------------------
# Userdata Image write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 57000000 userdata.img

#------------------------------------------------------------------------------------------------------
# Cache Image write to eMMC
#------------------------------------------------------------------------------------------------------
fatload mmc 0:1 61000000 cache.img

#------------------------------------------------------------------------------------------------------
# Partition Create to eMMC
#------------------------------------------------------------------------------------------------------
fdisk -c 1

#------------------------------------------------------------------------------------------------------
fastboot flash system 40000000 1
fastboot flash userdata 57000000 1
fastboot flash cache 61000000 1

#------------------------------------------------------------------------------------------------------
# SD/eMMC FAT Format
#------------------------------------------------------------------------------------------------------
fatformat mmc 1:1

fastboot poweroff
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

Build android.

$ adb connect 192.168.x.x
$ cd out/target/products/odroidxu3/
$ adb push update.zip /storage/sdcard0/
$ adb push update.zip.md5sum /storage/sdcard0/

Run ODROID Update.

Now enable 'Validate file' button.

2015년 7월 25일 토요일

How to recovery eMMC for ODROID-XU3/4

Download u-boot binaries from github.

$ git clone https://github.com/codewalkerster/android_device_hardkernel_odroidxu3.git
Cloning into 'android_device_hardkernel_odroidxu3'...
remote: Counting objects: 228, done.
remote: Compressing objects: 100% (17/17), done.
remote: Total 228 (delta 6), reused 0 (delta 0), pack-reused 211
Receiving objects: 100% (228/228), 36.68 MiB | 2.93 MiB/s, done.
Resolving deltas: 100% (94/94), done.
Checking connectivity... done.
$

$ cd android_device_hardkernel_odroidxu3/uboot/

$ ls

bl1.bin bl2.bin sd_fusing.sh tzsw.bin u-boot.bin

$ chmod +x ./sd_fusing.sh

Prepare microSD and USB reader

$ cd android_device_hardkernel_odroidxu3/uboot/

$ chmod +x ./sd_fusing.sh

Check mounted point.

$ sudo fdisk -l

Fusing u-boot.

$ sudo ./sd_fusing.sh /dev/sde

/dev/sde reader is identified.

BL1 fusing

30+1 records in

30+1 records out

15616 bytes (16 kB) copied, 0.109455 s, 143 kB/s

BL2 fusing

28+1 records in

28+1 records out

14592 bytes (15 kB) copied, 0.07118 s, 205 kB/s

u-boot fusing

582+1 records in

582+1 records out

298372 bytes (298 kB) copied, 1.02247 s, 292 kB/s

TrustZone S/W fusing

512+0 records in

512+0 records out

262144 bytes (262 kB) copied, 1.0057 s, 261 kB/s

U-boot image is fused successfully.

Eject SD card and insert it again.

Insert microSD card and eMMC. set switch for microSD-boot.

ODROID-XU4

ODROID-XU3/XU3-LITE

Connect USB-UART Module Kit and Open serial terminal.

Check last u-boot version.

U-Boot 2012.07-00029-g0e9204d-dirty (Jul 17 2015 - 15:38:42) for Exynos5422

CPU: Exynos5422 Rev0.1 [Samsung SOC on SMP Platform Base on ARM CortexA7]

APLL = 800MHz, KPLL = 800MHz

MPLL = 532MHz, BPLL = 825MHz

Board: HardKernel ODROID

DRAM: 2 GiB

WARNING: Caches not enabled

TrustZone Enabled BSP

BL1 version: �/� �

VDD_KFC: 0x44

LDO19: 0xf2

Checking Boot Mode ... SDMMC

MMC: S5P_MSHC2: 0, S5P_MSHC0: 1

MMC Device 0: 7.4 GiB

MMC Device 1: [ERROR] response error : 00000006 cmd 8

[ERROR] response error : 00000006 cmd 55

[ERROR] response error : 00000006 cmd 2

*** Warning - bad CRC, using default environment

In: serial

Out: serial

Err: serial

Net: No ethernet found.

Double Press 'Enter' to stop autoboot: 0

Exynos5422 #

Exynos5422 # pri

baudrate=115200

bootargs=fb_x_res=1280 fb_y_res=720 vout=hdmi led_blink=1

bootcmd= cfgload; mmc rescan 0:1; mmc rescan 0:2; if run loadbootscript_1; then run bootscript; else if run loadbootscript_2; then run bootscript; else ;

bootdelay=1

bootscript=source 40008000

copy_uboot_emmc2sd=emmc open 0;movi r z f 0 40000000;emmc close 0;movi w f 1 40000000;emmc open 0;movi r z b 0 40000000;emmc close 0;movi w b 1 40000000;emmc open 0;movi r z u 0 40000000;emmc close 0;movi w ;

copy_uboot_sd2emmc=movi r f 0 40000000;emmc open 1;movi w z f 1 40000000;emmc close 1;movi r b 0 40000000;emmc open 1;movi w z b 1 40000000;emmc close 1;movi r u 0 40000000;emmc open 1;movi w z u 1 40000000;;

default_bootcmd=echo >>> Run Default Bootcmd <<<;movi read kernel 0 40008000;movi read rootfs 0 41000000 100000;bootz 40008000 41000000

env_erase=mmc write 0 0x40008000 0x4CF 0x20;

loadbootscript_1=echo >>> Load Boot Script from mmc 0:1 <<<;fatload mmc 0:1 40008000 boot.scr

loadbootscript_2=echo >>> Load Boot Script from mmc 0:2 <<<;fatload mmc 0:2 40008000 boot.scr

loadbootscript_3=echo >>> Load Boot Script from mmc 1:1 <<<;fatload mmc 1:1 40008000 boot.scr

loadbootscript_4=echo >>> Load Boot Script from mmc 1:2 <<<;fatload mmc 1:2 40008000 boot.scr

rootfslen= 100000

stderr=serial

stdin=serial

stdout=serial

Environment size: 1657/16380 bytes

Exynos5422 # run copy_uboot_sd2emmc

reading FWBL1 ..device 0 Start 1, Count 30

MMC read: dev # 0, block # 1, count 30 ... 30 blocks read: OK

completed

eMMC OPEN Success.!!

!!!Notice!!!

!You must close eMMC boot Partition after all image writing!

!eMMC boot partition has continuity at image writing time.!

!So, Do not close boot partition, Before, all images is written.!

writing FWBL1 ..device 1 Start 0, Count 30

MMC write: dev # 1, block # 0, count 30 ... 30 blocks write: OK

completed

eMMC CLOSE Success.!!

reading BL2 ..device 0 Start 31, Count 32

MMC read: dev # 0, block # 31, count 32 ... 32 blocks read: OK

completed

eMMC OPEN Success.!!

!!!Notice!!!

!You must close eMMC boot Partition after all image writing!

!eMMC boot partition has continuity at image writing time.!

!So, Do not close boot partition, Before, all images is written.!

writing BL2 ..device 1 Start 30, Count 32

MMC write: dev # 1, block # 30, count 32 ... 32 blocks write: OK

completed

eMMC CLOSE Success.!!

reading bootloader..device 0 Start 63, Count 656

MMC read: dev # 0, block # 63, count 656 ... 656 blocks read: OK

completed

eMMC OPEN Success.!!

!!!Notice!!!

!You must close eMMC boot Partition after all image writing!

!eMMC boot partition has continuity at image writing time.!

!So, Do not close boot partition, Before, all images is written.!

writing bootloader..device 1 Start 62, Count 656

MMC write: dev # 1, block # 62, count 656 ... 656 blocks write: OK

completed

eMMC CLOSE Success.!!

reading 0 TrustZone S/W.. Start 719, Count 512

MMC read: dev # 0, block # 719, count 512 ... 512 blocks read: OK

completed

eMMC OPEN Success.!!

!!!Notice!!!

!You must close eMMC boot Partition after all image writing!

!eMMC boot partition has continuity at image writing time.!

!So, Do not close boot partition, Before, all images is written.!

writing 1 TrustZone S/W.. Start 718, Count 512

MMC write: dev # 1, block # 718, count 512 ... 512 blocks write: OK

completed

eMMC CLOSE Success.!!

MMC write: dev # 1, block # 1231, count 32 ... 32 blocks write: OK

Exynos5422 #

Download sd to eMMC self installer image.

http://odroid.com/dokuwiki/doku.php?id=en:xu3_release_android

Recovery u-boot and android automatically.

2015년 7월 24일 금요일

adb connect over TCPIP when Multiple Devices

Get all device's IP.

shell@odroidxu3:/ $ su

root@odroidxu3:/ # netcfg

lo UP 127.0.0.1/8 0x00000049 00:00:000

eth0 UP 192.168.0.1/24 0x00001043 fa:e2:864

sit0 DOWN 0.0.0.0/0 0x00000080 00:00:000

ip6tnl0 DOWN 0.0.0.0/0 0x00000080 00:00:000

root@odroidxu3:/ #

eth0 -> adb over Ethernet.

wlan0 -> adb over Wi-Fi.

device1 ip 192.168.0.1

device2 ip 192.168.0.2

device3 ip 192.168.0.3

......

deviceN ip 192.168.0.N

Restart adbd service at all devices.

root@odroidxu3:/ # setprop service.adb.tcp.port 5555

root@odroidxu3:/ # stop adbd && start adbd

[ 286.223070] [c4] adb_release

[ 286.224485] [c4] dwc3 12400000.dwc3: request de1f4f80 was not queued to ep0ot

root@odroidxu3:/ [ 286.239830] [c1] adb_open

[ 286.242450] [c6] adb_bind_config

Or Edit /system/build.prop. No more stop and start adbd.

add this line.
$ su
# mount -o rw,remount /system
# vi /system/build.prop

service.adb.tcp.port=5555

Connect device on 192.168.0.1

[~]$ adb connect 192.168.0.1

connected to 192.168.0.1:5555

[~]$ adb logcat

--------- beginning of /dev/log/main

I/installd( 2785): installd firing up

I/DEBUG ( 2780): debuggerd: Jul 2 2015 14:27:22

I/Netd ( 2779): Netd 1.0 starting

W/InterfaceController( 2779): Warning (dlopen failed: library "/system/lib/libnetcmdiface.so" not found) while opening the net interface command library

--------- beginning of /dev/log/system

I/Vold ( 2774): Vold 2.1 (the revenge) firing up

E/Vold ( 2774): boot_mode = 0

E/Vold ( 2774): eMMC boot_mode

D/Vold ( 2774): Volume sdcard0 state changing -1 (Initializing) -> 0 (No-Media)

D/Vold ( 2774): Volume sdcard1 state changing -1 (Initializing) -> 0 (No-Media)

D/Vold ( 2774): Volume usb2host state changing -1 (Initializing) -> 0 (No-Media)

D/Vold ( 2774): Volume usb3host state changing -1 (Initializing) -> 0 (No-Media)

D/Vold ( 2774): Volume usb3device state changing -1 (Initializing) -> 0 (No-Media)

D/Vold ( 2774): Volume sdcard0 state changing 0 (No-Media) -> 1 (Idle-Unmounted)

W/Vold ( 2774): Duplicate state (1)

On other terminal

[~]$ adb devices

List of devices attached

192.168.0.1:5555 device

Connect deivce on 192.168.0.2

[~]$ adb connect 192.168.0.2

connected to 192.168.0.2:5555

There are multiple devices.

[~]$ adb devices

List of devices attached

192.168.0.1:5555 device

192.168.0.2:5555 device

If you connect other device, It is impossible.

[~]$ adb logcat

- waiting for device -

error: more than one device and emulator

You can solve by option '-s'

[~]$ adb -s 192.168.0.2:5555 logcat

--------- beginning of /dev/log/main

I/installd( 2785): installd firing up

I/DEBUG ( 2780): debuggerd: Jul 2 2015 14:27:22

I/Netd ( 2779): Netd 1.0 starting

W/InterfaceController( 2779): Warning (dlopen failed: library "/system/lib/libnetcmdiface.so" not found) while opening the net interface command library

--------- beginning of /dev/log/system

I/Vold ( 2774): Vold 2.1 (the revenge) firing up

E/Vold ( 2774): boot_mode = 0

E/Vold ( 2774): eMMC boot_mode

D/Vold ( 2774): Volume sdcard0 state changing -1 (Initializing) -> 0 (No-Media)

D/Vold ( 2774): Volume sdcard1 state changing -1 (Initializing) -> 0 (No-Media)

D/Vold ( 2774): Volume usb2host state changing -1 (Initializing) -> 0 (No-Media)

D/Vold ( 2774): Volume usb3host state changing -1 (Initializing) -> 0 (No-Media)

D/Vold ( 2774): Volume usb3device state changing -1 (Initializing) -> 0 (No-Media)

D/Vold ( 2774): Volume sdcard0 state changing 0 (No-Media) -> 1 (Idle-Unmounted)

W/Vold ( 2774): Duplicate state (1)

2015년 7월 22일 수요일

How to use UPS on Android(ODROID-U3)

http://www.hardkernel.com/main/products/prdt_info.php?g_code=G142353865593

Auto shutdown Script on Linux

http://odroid.com/dokuwiki/doku.php?id=en:odroid-ups2

We will use UPS on Android.

Select CONFIG_GPIO_SYSFS

build kernel

$ make -j8

copy drivers

$ adb remount
$ find -name *.ko | xargs -i adb push {} /system/lib/modules/

write kernel

# fastboot flash kernel arch/arm/boot/zImage
# fastboot reboot

make ups2.sh

-------------------------------------------------------------------------------------------------------------------
#!/bin/sh
SYSFS_GPIO_DIR="/sys/class/gpio"

retval=""

gpio_export()
{
[ -e "$SYSFS_GPIO_DIR/gpio$1" ] && return 0
echo $1 > "$SYSFS_GPIO_DIR/export"
echo $1
}

gpio_getvalue()
{
echo in > "$SYSFS_GPIO_DIR/gpio$1/direction"
val=`cat "$SYSFS_GPIO_DIR/gpio$1/value"`
retval=$val
}

gpio_setvalue()
{
echo out > "$SYSFS_GPIO_DIR/gpio$1/direction"
echo $2 > "$SYSFS_GPIO_DIR/gpio$1/value"
}

AC_OK_GPIO=199
BAT_OK_GPIO=200
LATCH_GPIO=204
gpio_export $LATCH_GPIO
gpio_setvalue $LATCH_GPIO 1

check()
{
gpio_export $AC_OK_GPIO
gpio_export $BAT_OK_GPIO
gpio_getvalue $AC_OK_GPIO

if [ $retval -eq 1 ]
then
echo "DC Input Okay"
else
echo "Power is shutdown or AC Adaptor is disconnected"
gpio_getvalue $BAT_OK_GPIO
echo $retval
if [ $retval -eq 0 ]
then
echo "battery is low than 3.7V"
poweroff -d 5

else
echo "battery is good"
fi
fi
}

while true
do check
sleep 2
done
-------------------------------------------------------------------------------------------------------------------

copy script and modify permission.

$ adb remount
$ adb push ups2.sh /system/bin
$ adb shell
# chmod 777 /system/bin/ups2.sh

register service

# mount -o rw,remount /
# vi /init.odroidu.rc
add this in end of file.

service ups /system/bin/ups2.sh
class core
user root
group root
oneshot

Power is shutdown or AC Adaptor is disconnected
1
battery is good
Power is shutdown or AC Adaptor is disconnected
1
battery is good
Power is shutdown or AC Adaptor is disconnected
1
battery is good
Power is shutdown or AC Adaptor is disconnected
0
battery is low than 3.7V
[ 88.089377] SysRq : Emergency Remount R/O
[ 88.093736] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 88.099412] EXT4-fs (mmcblk0p3): re-mounted. Opts: (null)
[ 88.105858] EXT4-fs (mmcblk0p4): re-mounted. Opts: (null)
[ 88.112916] Emergency Remount complete
[ 88.191188] exynos4_notifier_call : System Rrestart notifier call!
[ 88.191714] exynos4_notifier_call : Done!
[ 88.195726] REBOOT Notifier for CPUFREQ
[ 88.200303] Disabling non-boot CPUs ...
[ 88.204077] CPU1: shutdown
[ 88.206946] CPU2: shutdown
[ 88.209279] CPU3: shutdown
[ 88.211703] Restarting system.