구차니의 잡동사니 모음

$ ll /sys/devices/platform/dw_mmc/mmc_host/mmc1/mmc1:0001

total 0

drwxr-xr-x 4 root root    0 ene  1  2000 ./

drwxr-xr-x 4 root root    0 ene  1  2000 ../

drwxr-xr-x 3 root root    0 ene  1  2000 block/

-r--r--r-- 1 root root 4096 oct 14 21:31 cid

-r--r--r-- 1 root root 4096 oct 14 21:31 csd

-r--r--r-- 1 root root 4096 oct 14 21:31 date

lrwxrwxrwx 1 root root    0 ene  1  2000 driver -> ../../../../../../bus/mmc/drivers/mmcblk/

-r--r--r-- 1 root root 4096 oct 14 21:31 enhanced_area_offset

-r--r--r-- 1 root root 4096 oct 14 21:31 enhanced_area_size

-r--r--r-- 1 root root 4096 oct 14 21:31 erase_size

-r--r--r-- 1 root root 4096 oct 14 21:31 fwrev

-r--r--r-- 1 root root 4096 oct 14 21:31 hwrev

-r--r--r-- 1 root root 4096 oct 14 21:31 manfid

-r--r--r-- 1 root root 4096 ene  1  2000 name

-r--r--r-- 1 root root 4096 oct 14 21:31 oemid

drwxr-xr-x 2 root root    0 oct 14 21:31 power/

-r--r--r-- 1 root root 4096 oct 14 21:31 preferred_erase_size

-r--r--r-- 1 root root 4096 oct 14 21:31 raw_rpmb_size_mult

-r--r--r-- 1 root root 4096 oct 14 21:31 rel_sectors

-r--r--r-- 1 root root 4096 ene  1  2000 serial

lrwxrwxrwx 1 root root    0 ene  1  2000 subsystem -> ../../../../../../bus/mmc/

-r--r--r-- 1 root root 4096 oct 14 21:31 type

-rw-r--r-- 1 root root 4096 ene  1  2000 uevent 

$ cd /sys/devices/platform/sdhci-esdhc-imx.2/mmc_host/mmc0/mmc0:0001

$ cat boot_info

boot_info:0x07;

  ALT_BOOT_MODE:1 - Supports alternate boot method

  DDR_BOOT_MODE:1 - Supports alternate dual data rate during boot

  HS_BOOTMODE:1 - Supports high speed timing during boot

boot_size:536870912KB

boot_partition:0x01;

  BOOT_ACK:0 - No boot acknowledge sent

  BOOT_PARTITION-ENABLE: 0 - Device not boot enabled

  PARTITION_ACCESS:1 - R/W boot partition 1

boot_bus:0x00

  BOOT_MODE:0 - Use single data rate + backward compatible timings in boot operation 

$ mkimage

Usage: mkimage -l image

          -l ==> list image header information

       mkimage [-x] -A arch -O os -T type -C comp -a addr -e ep -n name -d data_file[:data_file...] image

          -A ==> set architecture to 'arch'

          -O ==> set operating system to 'os'

          -T ==> set image type to 'type'

          -C ==> set compression type 'comp'

          -a ==> set load address to 'addr' (hex)

          -e ==> set entry point to 'ep' (hex)

          -n ==> set image name to 'name'

          -d ==> use image data from 'datafile'

          -x ==> set XIP (execute in place)

       mkimage [-D dtc_options] [-f fit-image.its|-F] fit-image

          -D => set options for device tree compiler

          -f => input filename for FIT source

Signing / verified boot not supported (CONFIG_FIT_SIGNATURE undefined)

       mkimage -V ==> print version information and exit 

$ file boot.*

boot.scr: u-boot legacy uImage, boot, Linux/ARM, Script File (Not compressed), 289 bytes, Fri Apr 18 00:22:42 2014, Load Address: 0x00000000, Entry Point: 0x00000000, Header CRC: 0xB3F039B6, Data CRC: 0x88FB7365

boot.txt: ASCII text

$ ll /boot

total 21860

drwxr-xr-x  2 root root    4096 oct 11 00:48 ./

drwxr-xr-x 19 root root    4096 oct  8 20:51 ../

-rwxr-xr-x  1 root root     353 ago  8  2014 boot.scr*

-rwxr-xr-x  1 root root     281 ago  8  2014 boot.txt*

-rwxr-xr-x  1 root root  101420 ago  8  2014 config-3.8.13.23*

-rw-r--r--  1 root root  101448 ago  8  2014 config-3.8.13.26

-rw-r--r--  1 root root  102438 nov 25  2014 config-3.8.13.28

-rw-r--r--  1 root root  102534 oct 11 00:48 config-3.8.13.30

-rwxr-xr-x  1 root root 2127254 ago  8  2014 initrd.img-3.8.13.23*

-rw-r--r--  1 root root 2127606 ago  8  2014 initrd.img-3.8.13.26

-rw-r--r--  1 root root 2127327 feb 21  2015 initrd.img-3.8.13.28

-rw-r--r--  1 root root 2190696 oct 11 00:48 initrd.img-3.8.13.30

-rwxr-xr-x  1 root root 2194825 ago  8  2014 uInitrd*

-rwxr-xr-x  1 root root 2194825 ago  8  2014 uInitrd-3.8.13.23*

-rw-r--r--  1 root root 2127670 ago  8  2014 uInitrd-3.8.13.26

-rw-r--r--  1 root root 2195492 nov 25  2014 uInitrd-3.8.13.28

-rw-r--r--  1 root root 2190760 oct 11 00:48 uInitrd-3.8.13.30

-rwxr-xr-x  1 root root 2453112 ago  8  2014 zImage* 

$ cat boot.scr

'V▒▒9▒SO▒!▒▒sebootsetenv initrd_high "0xffffffff"

setenv fdt_high "0xffffffff"

setenv bootcmd "fatload mmc 0:1 0x40008000 zImage; fatload mmc 0:1 0x42000000 uInitrd; bootm 0x40008000 0x42000000"

setenv bootargs "console=tty1 console=ttySAC1,115200n8 root=/dev/mmcblk0p2 rootwait ro mem=2047M"

boot

$ cat boot.txt

setenv initrd_high "0xffffffff"

setenv fdt_high "0xffffffff"

setenv bootcmd "fatload mmc 0:1 0x40008000 zImage; fatload mmc 0:1 0x42000000 uInitrd; bootm 0x40008000 0x42000000"

setenv bootargs "console=tty1 root=/dev/mmcblk0p2 rootwait ro mem=2047M"

boot

$ sudo mkimage -T script -A arm -C none -d boot.txt boot.scr

Image Name:

Created:      Thu Oct 13 23:16:02 2016

Image Type:   ARM Linux Script (uncompressed)

Data Size:    264 Bytes = 0.26 kB = 0.00 MB

Load Address: 00000000

Entry Point:  00000000

Contents:

   Image 0: 256 Bytes = 0.25 kB = 0.00 MB

$ cat boot.scr

'V4▒P▒W▒▒                                                                                                         ▒▒▒setenv initrd_high "0xffffffff"

setenv fdt_high "0xffffffff"

setenv bootcmd "fatload mmc 0:1 0x40008000 zImage; fatload mmc 0:1 0x42000000 uInitrd; bootm 0x40008000 0x42000000"

setenv bootargs "console=tty1 root=/dev/mmcblk0p2 rootwait ro mem=2047M"

boot 

$ dmesg | grep console

[    0.000000] Kernel command line: console=tty1 console=ttySAC1,115200 mem=2047M console=tty1 root=/dev/mmcblk0p2 rootwait ro mem=2047M

[    0.000000] console [tty1] enabled

[    1.571946] console [ttySAC1] enabled

$ cat /boot/boot.scr

'V4▒P▒W▒▒                                                                                                         ▒▒▒setenv initrd_high "0xffffffff"

setenv fdt_high "0xffffffff"

setenv bootcmd "fatload mmc 0:1 0x40008000 zImage; fatload mmc 0:1 0x42000000 uInitrd; bootm 0x40008000 0x42000000"

setenv bootargs "console=tty1 root=/dev/mmcblk0p2 rootwait ro mem=2047M"

boot

$ cat /media/boot/boot.scr

'V▒▒!W▒▒▒▒▒setenv initrd_high "0xffffffff"

setenv fdt_high "0xffffffff"

setenv bootcmd "fatload mmc 0:1 0x40008000 zImage; fatload mmc 0:1 0x42000000 uInitrd; bootm 0x40008000 0x42000000"

setenv bootargs "console=tty1 root=/dev/mmcblk0p2 rootwait ro mem=2047M"

boot

$ dmesg | grep console

[    0.000000] Kernel command line: console=tty1 console=ttySAC1,115200 mem=2047                                                  M console=tty1 console=ttySAC1,115200n8 root=UUID=e139ce78-9841-40fe-8823-96a304                                                  a09859 rootwait ro  mem=2047M

[    0.000000] console [tty1] enabled

[    1.575425] console [ttySAC1] enabled

$ cat /media/boot/boot.txt

setenv initrd_high "0xffffffff"

setenv fdt_high "0xffffffff"

setenv bootcmd "fatload mmc 0:1 0x40008000 zImage; fatload mmc 0:1 0x42000000 uInitrd; bootm 0x40008000 0x42000000"

setenv bootargs "console=tty1 console=ttySAC0,115200n8 root=/dev/mmcblk0p2 rootwait ro mem=2047M"

boot

$ dmesg | grep -i mmc

[    0.000000] Kernel command line: console=tty1 console=ttySAC1,115200 mem=2047M console=tty1 console=ttySAC1,115200n8 root=/dev/mmcblk0p2 rootwait ro mem=2047M

[    0.220869] LDO4 VDDQ_MMC2_2V8: 2800 mV

[    0.222273] LDO5 VDDQ_MMC1_1V8: 1800 mV

[    0.241058] vddq_emmc_1V8: 1800 <--> 3000 mV at 1800 mV

[    0.243880] vddf_emmc_2V85: 2850 mV

[    2.634026] s3c-sdhci exynos4-sdhci.2: clock source 2: mmc_busclk.2 (440000000 Hz)

[    2.634090] mmc0: no vqmmc regulator found

[    2.634098] mmc0: no vmmc regulator found

[    2.771135] mmc0: SDHCI controller on samsung-hsmmc [exynos4-sdhci.2] using ADMA

[    2.785178] dw_mmc dw_mmc: Using internal DMA controller.

[    2.821138] DWMMC: Div 2 = 130

[    2.821165] dw_mmc dw_mmc: Version ID is 240a

[    2.821172] dw_mmc dw_mmc: DW MMC controller at irq 109, 32 bit host data width, 128 deep fifo

[    2.878679] mmc_host mmc1: Bus speed (slot 0) = 104000000Hz (slot req 400000Hz, actual 400000HZ div = 130)

[    2.942993] mmc1: BKOPS_EN bit is not set

[    2.944129] DWMMC: Div 2 = 1

[    2.944138] mmc_host mmc1: Bus speed (slot 0) = 104000000Hz (slot req 52000000Hz, actual 52000000HZ div = 1)

[    2.944535] mmc1: new high speed DDR MMC card at address 0001

[    2.944855] mmcblk0: mmc1:0001 008G92 7.28 GiB

[    2.945022] mmcblk0boot0: mmc1:0001 008G92 partition 1 4.00 MiB

[    2.945191] mmcblk0boot1: mmc1:0001 008G92 partition 2 4.00 MiB

[    2.945348] mmcblk0rpmb: mmc1:0001 008G92 partition 3 512 KiB

[    2.946209]  mmcblk0: p1 p2

[    2.947708]  mmcblk0boot1: unknown partition table

[    2.948758]  mmcblk0boot0: unknown partition table

[    3.314930] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)

[    3.897127] EXT4-fs (mmcblk0p2): re-mounted. Opts: errors=remount-ro

$ mount

/dev/mmcblk0p2 on / type ext4 (rw,noatime,nodiratime,errors=remount-ro)

proc on /proc type proc (rw,noexec,nosuid,nodev)

none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)

sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)

none on /sys/fs/cgroup type tmpfs (rw)

none on /sys/kernel/debug type debugfs (rw)

udev on /dev type devtmpfs (rw,mode=0755)

devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)

tmpfs on /tmp type tmpfs (rw,nosuid,nodev,mode=1777)

tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)

none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)

none on /run/shm type tmpfs (rw,nosuid,nodev)

none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)

/dev/mmcblk0p1 on /boot type vfat (rw,nosuid,nodev,flush,umask=000)

systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)

gvfsd-fuse on /run/user/105/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=lightdm)

$ dmesg | grep -i mmc

[    0.000000] Kernel command line: console=tty1 console=ttySAC1,115200 mem=2047M console=tty1 console=ttySAC1,115200n8 root=/dev/mmcblk0p2 rootwait ro mem=2047M

[    0.220690] LDO4 VDDQ_MMC2_2V8: 2800 mV

[    0.222102] LDO5 VDDQ_MMC1_1V8: 1800 mV

[    0.240017] vddq_emmc_1V8: 1800 <--> 3000 mV at 1800 mV

[    0.242803] vddf_emmc_2V85: 2850 mV

[    2.647631] s3c-sdhci exynos4-sdhci.2: clock source 2: mmc_busclk.2 (440000000 Hz)

[    2.647693] mmc0: no vqmmc regulator found

[    2.647701] mmc0: no vmmc regulator found

[    2.789691] mmc0: SDHCI controller on samsung-hsmmc [exynos4-sdhci.2] using ADMA

[    2.797797] dw_mmc dw_mmc: Using internal DMA controller.

[    2.829744] dw_mmc dw_mmc: Version ID is 240a

[    2.832713] mmc0: new high speed SDHC card at address aaaa

[    2.833008] mmcblk0: mmc0:aaaa SU16G 14.8 GiB

[    2.834180]  mmcblk0: p1 p2

[    2.834691] DWMMC: Div 2 = 130

[    2.834701] mmc_host mmc1: Bus speed (slot 0) = 104000000Hz (slot req 400000Hz, actual 400000HZ div = 130)

[    2.880667] dw_mmc dw_mmc: DW MMC controller at irq 109, 32 bit host data width, 128 deep fifo

[    2.936544] mmc1: BKOPS_EN bit is not set

[    2.941863] DWMMC: Div 2 = 1

[    2.945985] mmc_host mmc1: Bus speed (slot 0) = 104000000Hz (slot req 52000000Hz, actual 52000000HZ div = 1)

[    2.954911] mmc1: new high speed DDR MMC card at address 0001

[    2.955279] mmcblk1: mmc1:0001 008G92 7.28 GiB

[    2.955453] mmcblk1boot0: mmc1:0001 008G92 partition 1 4.00 MiB

[    2.955615] mmcblk1boot1: mmc1:0001 008G92 partition 2 4.00 MiB

[    2.955785] mmcblk1rpmb: mmc1:0001 008G92 partition 3 512 KiB

[    2.956597]  mmcblk1: p1 p2

[    2.958141]  mmcblk1boot1: unknown partition table

[    2.959250]  mmcblk1boot0: unknown partition table

[    3.457432] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)

[    5.307527] EXT4-fs (mmcblk0p2): re-mounted. Opts: errors=remount-ro 

$ mount

/dev/mmcblk0p2 on / type ext4 (rw,noatime,nodiratime,errors=remount-ro)

proc on /proc type proc (rw,noexec,nosuid,nodev)

none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)

sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)

none on /sys/fs/cgroup type tmpfs (rw)

none on /sys/kernel/debug type debugfs (rw)

udev on /dev type devtmpfs (rw,mode=0755)

devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)

tmpfs on /tmp type tmpfs (rw,nosuid,nodev,mode=1777)

tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)

none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)

none on /run/shm type tmpfs (rw,nosuid,nodev)

none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)

/dev/mmcblk0p1 on /media/boot type vfat (rw,nosuid,nodev,flush,umask=000)

systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)

gvfsd-fuse on /run/user/1001/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=odroid)

/dev/mmcblk1p1 on /media/odroid/BOOT type vfat (rw,nosuid,nodev,uid=1001,gid=1001,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks2)

$ dmesg | grep mmcblk

[    2.833262] mmcblk0: mmc0:0007 SL16G 14.4 GiB

[    2.838533]  mmcblk0: p1

[    2.931688] mmcblk1: mmc1:0001 008G92 7.28 GiB

[    2.931856] mmcblk1boot0: mmc1:0001 008G92 partition 1 4.00 MiB

[    2.932050] mmcblk1boot1: mmc1:0001 008G92 partition 2 4.00 MiB

[    2.932236] mmcblk1rpmb: mmc1:0001 008G92 partition 3 512 KiB

[    2.933152]  mmcblk1: p1 p2

[    2.934582]  mmcblk1boot1: unknown partition table

[    2.935609]  mmcblk1boot0: unknown partition table

[    3.350821] EXT4-fs (mmcblk1p2): mounted filesystem with ordered data mode. Opts: (null)

[    4.036336] EXT4-fs (mmcblk1p2): re-mounted. Opts: errors=remount-ro