Compal_LA-6352P_PAZ00_AC100.pdf
Contents: [Dobrica Pavlinušić's random unstructured stuff]
|
Tegra 2 device
kernel
cpuinfo
$ cat /proc/cpuinfo
Processor : ARMv7 Processor rev 0 (v7l)
processor : 0
BogoMIPS : 1998.84
Features : swp half thumb fastmult vfp edsp vfpv3 vfpv3d16
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x1
CPU part : 0xc09
CPU revision : 0
Hardware : NVIDIA Harmony Development System
Revision : 0000
Serial : 0000000000000000
$ cat /proc/meminfo
MemTotal: 383348 kB
MemFree: 106528 kB
Buffers: 30116 kB
Cached: 123316 kB
SwapCached: 0 kB
Active: 164792 kB
Inactive: 85020 kB
Active(anon): 96692 kB
Inactive(anon): 0 kB
Active(file): 68100 kB
Inactive(file): 85020 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 96412 kB
Mapped: 44536 kB
Shmem: 312 kB
Slab: 8940 kB
SReclaimable: 4848 kB
SUnreclaim: 4092 kB
KernelStack: 2528 kB
PageTables: 8324 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 191672 kB
Committed_AS: 6569284 kB
VmallocTotal: 614400 kB
VmallocUsed: 30656 kB
VmallocChunk: 520068 kB
Rooting
nvflash
Press CTRL + ESC + power button to get into APX mode
[Thu Oct 11 06:31:57 2018] usb 2-2.4: new high-speed USB device number 13 using xhci_hcd
[Thu Oct 11 06:31:57 2018] usb 2-2.4: New USB device found, idVendor=0955, idProduct=7820, bcdDevice= 1.02
[Thu Oct 11 06:31:57 2018] usb 2-2.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[Thu Oct 11 06:31:57 2018] usb 2-2.4: Product: APX
[Thu Oct 11 06:31:57 2018] usb 2-2.4: Manufacturer: NVIDIA Corp.
In theory. In practice driver package from
is everything you need. It's from http://developer.nvidia.com/content/linux-tegra-release-12-alpha-1-released
fastboot.stock.bin
t61p:/home/dpavlin/Downloads/ldk/bootloader/alt# wget https://github.com/muromec/putusb/raw/master/bin/fastboot.stock.bin
--2011-09-12 20:40:17-- https://github.com/muromec/putusb/raw/master/bin/fastboot.stock.bin
Resolving github.com (github.com)... 207.97.227.239
Connecting to github.com (github.com)|207.97.227.239|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://raw.github.com/muromec/putusb/master/bin/fastboot.stock.bin [following]
--2011-09-12 20:40:19-- https://raw.github.com/muromec/putusb/master/bin/fastboot.stock.bin
Resolving raw.github.com (raw.github.com)... 207.97.227.243
Connecting to raw.github.com (raw.github.com)|207.97.227.243|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 936016 (914K) [application/octet-stream]
Saving to: `fastboot.stock.bin'
100%[=====================================================>] 936,016 645K/s in 1.4s
2011-09-12 20:40:22 (645 KB/s) - `fastboot.stock.bin' saved [936016/936016]
t61p:/home/dpavlin/Downloads/ldk/bootloader/alt# md5sum fastboot.stock.bin
9197365fb42c5801b4124e75ea00512c fastboot.stock.bin
backup
Following instructions at http://gitorious.org/ac100/pages/Installation
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash --bl fastboot.stock.bin --go
Nvflash started
rcm version 0X20001
System Information:
chip name: t20
chip id: 0x20 major: 1 minor: 2
chip sku: 0x8
chip uid: 0x1700618943a00317
macrovision: disabled
hdcp: enabled
sbk burned: false
dk burned: false
boot device: emmc
operating mode: 3
device config strap: 0
device config fuse: 0
sdram config strap: 0
downloading bootloader -- load address: 0x108000 entry point: 0x108000
sending file: fastboot.stock.bin
| 936016/936016 bytes sent
fastboot.stock.bin sent successfully
waiting for bootloader to initialize
bootloader downloaded successfully
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --getpartitiontable partitiontable.txt
Nvflash started
[resume mode]
Succesfully updated partition table information to partitiontable.txt
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --read 2 part-2.img
Nvflash started
[resume mode]
receiving file: part-2.img, expected size: 3145728 bytes
/ 3145728/3145728 bytes received
file received successfully
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --read 3 part-3.img
Nvflash started
[resume mode]
receiving file: part-3.img, expected size: 524288 bytes
/ 524288/524288 bytes received
file received successfully
t61p:/home/dpavlin/Downloads/ldk/bootloader# /nvflash -r --read 4 part-4.img
bash: /nvflash: No such file or directory
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --read 4 part-4.img
Nvflash started
[resume mode]
receiving file: part-4.img, expected size: 2097152 bytes
/ 2097152/2097152 bytes received
file received successfully
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --read 5 part-5.img
Nvflash started
[resume mode]
receiving file: part-5.img, expected size: 5242880 bytes
/ 5242880/5242880 bytes received
file received successfully
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --read 6 part-6.img
Nvflash started
[resume mode]
receiving file: part-6.img, expected size: 8388608 bytes
/ 8388608/8388608 bytes received
file received successfully
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --read 7 part-7.img
Nvflash started
[resume mode]
receiving file: part-7.img, expected size: 1048576 bytes
/ 1048576/1048576 bytes received
file received successfully
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --read 8 part-8.img
Nvflash started
[resume mode]
receiving file: part-8.img, expected size: 314572800 bytes
/ 314572800/314572800 bytes received
file received successfully
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --read 9 part-9.img
Nvflash started
[resume mode]
receiving file: part-9.img, expected size: 419430400 bytes
/ 419430400/419430400 bytes received
file received successfully
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --read 10 part-10.img
Nvflash started
[resume mode]
receiving file: part-10.img, expected size: 2097152 bytes
/ 2097152/2097152 bytes received
file received successfully
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --read 11 part-11.img
Nvflash started
[resume mode]
receiving file: part-11.img, expected size: 524288 bytes
/ 524288/524288 bytes received
file received successfully
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --read 12 part-12.img
Nvflash started
[resume mode]
receiving file: part-12.img, expected size: 1294991360 bytes
/ 1294991360/1294991360 bytes received
file received successfully
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --read 13 part-13.img
Nvflash started
[resume mode]
receiving file: part-13.img, expected size: 524288 bytes
/ 524288/524288 bytes received
file received successfully
t61p:/home/dpavlin/Downloads/ldk/bootloader# ./nvflash -r --read 14 part-14.img
Nvflash started
[resume mode]
receiving file: part-14.img, expected size: 5891424256 bytes
/ 5891424256/5891424256 bytes received
file received successfully
Linux
links
phh 2.6.32 kernel with working suspend and audio
t61p:/home/dpavlin/ac100/linux4tegra_10.9.3# LD_LIBRARY_PATH=./nvflash/ ./nvflash/nvflash --bl ./prebuilt/fastboot.stock.bin --read 6 tegra_partition_6.bin --go
Nvflash started
rcm version 0X20001
System Information:
chip name: t20
chip id: 0x20 major: 1 minor: 2
chip sku: 0x8
chip uid: 0x1700618943a00317
macrovision: disabled
hdcp: enabled
sbk burned: false
dk burned: false
boot device: emmc
operating mode: 3
device config strap: 0
device config fuse: 0
sdram config strap: 0
downloading bootloader -- load address: 0x108000 entry point: 0x108000
sending file: ./prebuilt/fastboot.stock.bin
| 936016/936016 bytes sent
./prebuilt/fastboot.stock.bin sent successfully
waiting for bootloader to initialize
bootloader downloaded successfully
receiving file: tegra_partition_6.bin, expected size: 8388608 bytes
/ 8388608/8388608 bytes received
file received successfully
t61p:/home/dpavlin/ac100/linux4tegra_10.9.3# LD_LIBRARY_PATH=./nvflash/ ./nvflash/nvflash --wait --bl ./prebuilt/fastboot.stock.bin --download 6 ../32.boot.menu.v1.img --go
Nvflash started
rcm version 0X20001
System Information:
chip name: t20
chip id: 0x20 major: 1 minor: 2
chip sku: 0x8
chip uid: 0x1700618943a00317
macrovision: disabled
hdcp: enabled
sbk burned: false
dk burned: false
boot device: emmc
operating mode: 3
device config strap: 0
device config fuse: 0
sdram config strap: 0
downloading bootloader -- load address: 0x108000 entry point: 0x108000
sending file: ./prebuilt/fastboot.stock.bin
| 936016/936016 bytes sent
./prebuilt/fastboot.stock.bin sent successfully
waiting for bootloader to initialize
bootloader downloaded successfully
sending file: ../32.boot.menu.v1.img
/ 8388608/8388608 bytes sent
../32.boot.menu.v1.img sent successfully
mainline kernel
u-boot from APX
This should allow you to send u-boot, kernel and initramfs to any tegra2 board which can be in APX mode without
modifying internal storage.
build u-boot
dpavlin@klin:/klin/u-boot$ cat env.sh
export CROSS_COMPILE="arm-none-eabi-" ARCH=arm
dpavlin@klin:/klin/u-boot$ . env.sh
dpavlin@klin:/klin/u-boot$ make paz00_defconfig
make
build kernel
dpavlin@klin:/klin/Tegra/linux$ git remote -v
origin https://github.com/grate-driver/linux (fetch)
origin https://github.com/grate-driver/linux (push)
samsung-tab-10.1 https://github.com/Decatf/linux (fetch)
samsung-tab-10.1 https://github.com/Decatf/linux (push)
dpavlin@klin:/klin/Tegra/linux$ git branch -vv
* master 63a6317580f8 [origin/master] ARM: tegra: Clear EMC interrupts on resume from LP1 on Tegra30+
dpavlin@klin:/klin/Tegra/linux$ cat /klin/u-boot/env.sh
export CROSS_COMPILE="arm-none-eabi-" ARCH=arm
dpavlin@klin:/klin/Tegra/linux$ . /klin/u-boot/env.sh
dpavlin@klin:/klin/Tegra/linux$ make tegra_defconfig
make
create initrd with new modules
dpavlin@klin:/klin/Tegra/linux$ cat tegra-ramdisk.sh
#!/bin/sh -xe
test -d initrd && rm -Rf initrd
mkdir initrd
cd initrd
gzip -cd /tmp/initrd.img | fakeroot -- cpio -i -d -H newc --no-absolute-filenames
rm -R lib/modules/*
cd ..
make modules_install INSTALL_MOD_PATH=initrd/ INSTALL_MOD_STRIP=1
cd initrd
find . | cpio -o -R 0:0 -H newc > ../initrd.new.cpio
cd ..
gzip -f -6 initrd.new.cpio
/klin/u-boot/tools/mkimage -A arm -O linux -T ramdisk -C gzip -n uInitrd -d initrd.new.cpio.gz uInitrd.new
run it to create initrd:
dpavlin@klin:/klin/Tegra/linux$ ./tegra-ramdisk.sh
Image Name: uInitrd
Created: Fri Oct 12 11:20:42 2018
Image Type: ARM Linux RAMDisk Image (gzip compressed)
Data Size: 4082917 Bytes = 3987.22 KiB = 3.89 MiB
Load Address: 00000000
Entry Point: 00000000
create bootloader file
latest version seems to be: https://gitlab.com/uboot-ac100/create_bootimage.git
dpavlin@nuc:/nuc/Tegra/ac100/create_bootimage/example$ ../create_image.pl /mnt/klin/klin/u-boot/u-boot-dtb-tegra.bin /m
nt/klin/klin/Tegra/linux/arch/arm/boot/zImage /tmp/postmarketOS-export/initrd.img /mnt/klin/klin/Tegra/linux/arch/arm/b
oot/dts/tegra20-paz00.dtb uboot.scr boot.img
Creating boot image for tegrarcm ...
./tmp_uboot.scr
image layout:
section loadaddr size
=================================
uboot : 0x108000 505627
kernel : 0x190000 6485800
initrd : 0x7c0000 4082981
fdt : 0xbb0000 29659
script : 0xbc0000 226
image written to boot.img
Now press CTRL + ESC + power on to enter APX mode
dpavlin@nuc:/nuc/Tegra/ac100/create_bootimage/example$ sudo apt-get install libcrypto++6
dpavlin@nuc:/nuc/Tegra/ac100/create_bootimage/example$ /mnt/klin/klin/Tegra/tegrarcm/src/tegrarcm --bct paz00-micron-toshiba-8g.bct --bootloader boot.img --loadaddr 0x108000
bct file: paz00-micron-toshiba-8g.bct
bootloader file: boot.img
load addr 0x108000
entry addr 0x108000
device id: 0x7820
uid: 0x1700618943a00317
RCM version: 2.1
downloading miniloader to target at address 0x40008000 (132976 bytes)...
miniloader downloaded successfully
Chip UID: 0x00000000000000001700618943a00317
Chip ID: 0x20
Chip ID Major Version: 0x1
Chip ID Minor Version: 0x2
Chip SKU: 0x8 (t20)
Boot ROM Version: 0x1
Boot Device: 0x2 (EMMC)
Operating Mode: 0x3 (developer mode)
Device Config Strap: 0x0
Device Config Fuse: 0x0
SDRAM Config Strap: 0x0
sending file: paz00-micron-toshiba-8g.bct
- 4080/4080 bytes sent
paz00-micron-toshiba-8g.bct sent successfully
sending file: boot.img
- 11239650/11239650 bytes sent
boot.img sent successfully
u-boot loads detects initrd (it's small enough thanks to MODULES_STRIP to be detected without CRC errors) but no output from kernel.
https://archlinuxarm.org/forum/viewtopic.php?f=23&t=10044&p=51142&hilit=ac100#p51142
suggests CONFIG_TEGRA_DEBUG_UARTA instead of CONFIG_TEGRA_DEBUG_UART_AUTO_ODMDATA but it doesn't work for me.
dpavlin@klin:/klin/Tegra/linux$ grep 'TEGRA.*UART' .config
# CONFIG_TEGRA_DEBUG_UART_AUTO_ODMDATA is not set
CONFIG_TEGRA_DEBUG_UARTA=y
# CONFIG_TEGRA_DEBUG_UARTB is not set
# CONFIG_TEGRA_DEBUG_UARTC is not set
# CONFIG_TEGRA_DEBUG_UARTD is not set
# CONFIG_TEGRA_DEBUG_UARTE is not set
CONFIG_DEBUG_TEGRA_UART=y
serial port
https://ac100.grandou.net/serial_port_modification
The serial port is the JP1 connector, near the left speaker connector. Pinout, from right to left:
- 1 - in - RX UART1
- 2 - out - TX UART1
- 3 - out - T20_WAKE#
- 4 - out - +3V
- 5 - out - +1.8V
- 6
- 7
- 8 - in - SYSTEM_RESET#
- 9 - in - EC_TX80_PDATA
- 10 - in - GND
I decided to solder GND to outer pin of connector to the right of pin 1 as opposed to other side of connector.
After that, a peace of capton tape was put over solder connectors to somewhat re-enforce them and provide insulation
to keyboard cover.
Serial is 3.3V, 115200 8n1.
Output is:
dpavlin@nuc:/nuc/Tegra$ microcom -p /dev/ttyUSB2
connected to /dev/ttyUSB2
Escape character: Ctrl-\
Type the escape character to get to the prompt.
U-Boot SPL 2018.11-rc1-00130-g0a60a81ba3 (Oct 12 2018 - 11:18:01 +0200)
Trying to boot from RAM
U-Boot 2018.11-rc1-00130-g0a60a81ba3 (Oct 12 2018 - 11:18:01 +0200)
TEGRA20
Model: Toshiba AC100 / Dynabook AZ
Board: Compal Paz00
DRAM: 512 MiB
MMC: sdhci@c8000000: 1, sdhci@c8000600: 0
Loading Environment from MMC... *** Warning - bad CRC, using default environment
In: serial
Out: vidconsole
Err: vidconsole
Net: No ethernet found.
Hit any key to stop autoboot: 0
## Executing script at 00b30000
## Loading init Ramdisk from Legacy Image at 00700000 ...
Image Name: uInitrd
Image Type: ARM Linux RAMDisk Image (gzip compressed)
Data Size: 4269789 Bytes = 4.1 MiB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
## Flattened Device Tree blob at 00b20000
Booting using the fdt blob at 0xb20000
Using Device Tree in place at 00b20000, end 00b2a3da
Starting kernel ...
Error: invalid dtb and unrecognized/unsupported machine ID
r1=0x00000c38, r2=0x00000000
Available machine support:
ID (hex) NAME
ffffffff Generic DT based system
ffffffff NVIDIA Tegra SoC (Flattened Device Tree)
Please check your kernel config and/or bootloader.
According to http://billauer.co.il/blog/2014/02/uboot-linux-dtb-fdt-device-tree/ this means that kernel didn't found valid device tree and tries to detect board usin machine ID registrars.
Solution for this seems to use u-boot variables for loading kernel, ramfs and dtb as opposed to values which script creates,
so this works (loading from usb keychain):
fatload usb 0:1 ${kernel_addr_r} /boot/zImage
fatload usb 0:1 ${fdt_addr_r} /boot/tegra20-paz00.dtb
fatload usb 0:1 ${ramdisk_addr_r} /boot/uInitrd.new
bootz ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
Here are also known working addresses which u-boot uses:
Tegra20 (Paz00) MOD # echo ${kernel_addr_r}
0x01000000
Tegra20 (Paz00) MOD # echo ${fdt_addr_r}
0x02000000
Tegra20 (Paz00) MOD # echo ${ramdisk_addr_r}
0x02100000
so much higher in memory map than create_image script. However, u-boot seems to want to load at 0x108000 so it's inpractical
to generate huge image to load kernel, dtb and initramfs at correct addresses.
bootstrap debian
based on https://wiki.debian.org/InstallingDebianOn/Toshiba/AC100
dpavlin@nuc:/mnt$ sudo debootstrap --foreign --arch=armhf stretch sdd1 http://ftp.hr.debian.org/debian
dpavlin@nuc:/mnt$ df sdd1/
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sdd1 1021948 169056 784596 18% /mnt/sdd1
dpavlin@nuc:/mnt$ sudo cp /usr/bin/qemu-arm-static sdd1/usr/bin
dpavlin@nuc:/mnt$ sudo chroot sdd1 /debootstrap/debootstrap --second-stage
dpavlin@nuc:/mnt$ cd sdd1/
dpavlin@nuc:/mnt/sdd1$ sudo mount --bind /sys sys
dpavlin@nuc:/mnt/sdd1$ sudo mount --bind /dev dev
dpavlin@nuc:/mnt/sdd1$ sudo mount --bind /proc proc
dpavlin@nuc:/mnt/sdd1$ sudo chroot .
root@nuc:/# apt-get install u-boot-tools
root@ac100:/boot# cat boot.cmd
ext2load usb 0:1 ${kernel_addr_r} /boot/zImage
ext2load usb 0:1 ${fdt_addr_r} /boot/tegra20-paz00.dtb
ext2load usb 0:1 ${ramdisk_addr_r} /boot/uInitrd
setenv bootargs root=/dev/sda1 rootwait CMA=64M tegrapart=recovery:300:a00:800,boot:d00:1000:800,mbr:1d00:200:800
bootz ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
# mkimage -C none -A arm -T script -d /boot/boot.cmd /boot/boot.scr
u-boot over pax, usb filesystem
dpavlin@nuc:/nuc/Tegra/ac100/create_bootimage/example$ /mnt/klin/klin/Tegra/tegrarcm/src/tegrarcm --bct paz00-micron-toshiba-8g.bct --bootloader /mnt/klin/klin/Tegra/u-boot-tegra/u-boot-dtb-tegra.bin --loadaddr 0x108000
bct file: paz00-micron-toshiba-8g.bct
Serial output:
U-Boot SPL 2018.09-rc2-38340-g3d186cf3f3 (Oct 20 2018 - 10:46:53 +0200)
Trying to boot from RAM
U-Boot 2018.09-rc2-38340-g3d186cf3f3 (Oct 20 2018 - 10:46:53 +0200)
TEGRA20
Model: Toshiba AC100 / Dynabook AZ
Board: Compal Paz00
DRAM: 512 MiB
MMC: sdhci@c8000000: 1, sdhci@c8000600: 0
Loading Environment from MMC... OK
In: serial
Out: vidconsole
Err: vidconsole
Net: No ethernet found.
starting USB...
USB0: USB EHCI 1.00
USB1: No code to set up ULPI controller, please enableCONFIG_USB_ULPI and CONFIG_USB_ULPI_VIEWPORTprobe failed, error -38
USB2: USB EHCI 1.00
scanning bus 0 for devices... 1 USB Device(s) found
scanning bus 2 for devices... 4 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
Hit any key to stop autoboot: 0
Tegra20 (Paz00) MOD # run usb_boot
wifi
root@ac100:/etc/network/interfaces.d# apt-get install firmware-ralink wpasupplicant
root@ac100:/etc/network/interfaces.d# cat wlx6c626d1788b3
allow-hotplug wlx6c626d1788b3
iface wlx6c626d1788b3 inet dhcp
wpa-ssid dreamhouse
wpa-psk xxxxxxxx
disk speed
root@ac100:~# hdparm -tT /dev/sda /dev/mmcblk1
/dev/sda:
Timing cached reads: 560 MB in 2.01 seconds = 279.14 MB/sec
Timing buffered disk reads: 32 MB in 3.07 seconds = 10.43 MB/sec
/dev/mmcblk1:
Timing cached reads: 598 MB in 2.00 seconds = 298.86 MB/sec
Timing buffered disk reads: 108 MB in 3.01 seconds = 35.83 MB/sec
tuhing block size
root@ac100:/home/dpavlin/flashbench# ./flashbench -a /dev/mmcblk1 --blocksize=1024
align 2147483648 pre 727µs on 1.07ms post 784µs diff 316µs
align 1073741824 pre 833µs on 1.13ms post 789µs diff 320µs
align 536870912 pre 798µs on 1.13ms post 825µs diff 317µs
align 268435456 pre 816µs on 1.15ms post 795µs diff 342µs
align 134217728 pre 742µs on 1.12ms post 843µs diff 327µs
align 67108864 pre 669µs on 987µs post 701µs diff 303µs
align 33554432 pre 662µs on 1.04ms post 643µs diff 385µs
align 16777216 pre 837µs on 1.09ms post 864µs diff 242µs
align 8388608 pre 800µs on 1.1ms post 881µs diff 262µs
align 4194304 pre 812µs on 1.07ms post 838µs diff 246µs
align 2097152 pre 807µs on 1.07ms post 808µs diff 258µs
align 1048576 pre 832µs on 960µs post 838µs diff 125µs
align 524288 pre 833µs on 959µs post 838µs diff 124µs
align 262144 pre 833µs on 959µs post 838µs diff 124µs
align 131072 pre 833µs on 962µs post 840µs diff 126µs
align 65536 pre 825µs on 951µs post 838µs diff 120µs
align 32768 pre 826µs on 956µs post 825µs diff 130µs
align 16384 pre 812µs on 924µs post 824µs diff 106µs
align 8192 pre 809µs on 841µs post 808µs diff 32.4µs
align 4096 pre 808µs on 836µs post 808µs diff 27.7µs
align 2048 pre 808µs on 836µs post 809µs diff 27.6µs
8192 seems good, re-test
root@ac100:/home/dpavlin/flashbench# ./flashbench -a /dev/mmcblk1 --blocksize=4096
align 2147483648 pre 696µs on 1.04ms post 725µs diff 331µs
align 1073741824 pre 917µs on 1.18ms post 870µs diff 289µs
align 536870912 pre 880µs on 1.18ms post 907µs diff 291µs
align 268435456 pre 899µs on 1.2ms post 877µs diff 311µs
align 134217728 pre 825µs on 1.18ms post 927µs diff 300µs
align 67108864 pre 864µs on 1.11ms post 842µs diff 253µs
align 33554432 pre 914µs on 1.12ms post 897µs diff 212µs
align 16777216 pre 921µs on 1.14ms post 948µs diff 210µs
align 8388608 pre 884µs on 1.15ms post 965µs diff 229µs
align 4194304 pre 895µs on 1.12ms post 922µs diff 215µs
align 2097152 pre 890µs on 1.12ms post 890µs diff 227µs
align 1048576 pre 916µs on 1.01ms post 922µs diff 89.7µs
align 524288 pre 916µs on 1.01ms post 922µs diff 90µs
align 262144 pre 916µs on 1.01ms post 923µs diff 89.1µs
align 131072 pre 916µs on 1.01ms post 924µs diff 91.1µs
align 65536 pre 908µs on 1ms post 921µs diff 85.9µs
align 32768 pre 911µs on 1.01ms post 908µs diff 96.2µs
align 16384 pre 895µs on 973µs post 908µs diff 71.4µs
align 8192 pre 892µs on 896µs post 892µs diff 4.57µs
create filesystem
root@ac100:/home/dpavlin/flashbench# mkfs -t ext4 -v -b 4096 -E stride=2,stripe-width=2 /dev/mmcblk1p6
cp -ax ....
root@ac100:~# mount /dev/mmcblk1p1 /tmp/1/
root@ac100:~# cat /tmp/1/boot/boot.cmd
ext2load mmc 0:6 ${kernel_addr_r} /boot/zImage
ext2load mmc 0:6 ${fdt_addr_r} /boot/tegra20-paz00.dtb
ext2load mmc 0:6 ${ramdisk_addr_r} /boot/uInitrd
setenv bootargs root=/dev/mmcblk1p6 rootwait CMA=64M tegrapart=recovery:300:a00:800,boot:d00:1000:800,mbr:1d00:200:800
bootz ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
# mkimage -C none -A arm -T script -d boot.cmd boot.scr
flash u-boot to mmc
based on https://paz00.ru/index.php?title=Flashing_Uboot_to_MMC&setlang=en
tegrarcm to get bct
dpavlin@nuc:/nuc/Tegra$ git clone https://github.com/NVIDIA/tegrarcm
dpavlin@nuc:/nuc/Tegra$ cd tegrarcm/
dpavlin@nuc:/nuc/Tegra/tegrarcm$ sudo apt-get install libcrypto++-dev
dpavlin@nuc:/nuc/Tegra/tegrarcm$ ./autogen.sh
dpavlin@nuc:/nuc/Tegra/tegrarcm$ make
dpavlin@nuc:/nuc/Tegra/tegrarcm$ ./src/tegrarcm --version
tegrarcm 1.8
create boot image
dpavlin@nuc:/nuc/Tegra/cbootimage$ git remote -v
origin https://github.com/NVIDIA/cbootimage (fetch)
origin https://github.com/NVIDIA/cbootimage (push)
dpavlin@nuc:/nuc/Tegra/cbootimage$ ./autogen.sh
dpavlin@nuc:/nuc/Tegra/cbootimage$ make
dpavlin@nuc:/nuc/Tegra/cbootimage$ cat > u-boot.cfg
Version = 0x00020001;
Bctcopy = 1;
Bctfile = ac100.bct;
BootLoader = u-boot.bin,0x00108000,0x00108000,Complete;
dpavlin@nuc:/nuc/Tegra/cbootimage$ cp ../ac100/create_bootimage/example/ac100-dpavlin.bct ac100.bct
dpavlin@nuc:/nuc/Tegra/cbootimage$ cp /mnt/klin/klin/Tegra/u-boot-tegra/u-boot-tegra.bin u-boot.bin
dpavlin@nuc:/nuc/Tegra/cbootimage$ ./src/cbootimage -d u-boot.cfg ac100.bct.new
bct size: 4080
**update_bl()
begin_update(): bct data: b=14 p=9
writing bootloader
redundancy = 1
BL[0]: 131073 0001 0000 518563 0x00108000 0x00108000
8e52c9639cb433e9e1e369cf718595c5
BL[1]: 131073 0002 0000 302746 0x00108000 0x00108000
a9014f31e7ccafab319512de6bc48f81
**BL[2]: 0 0000 0000 0000 0x00000000 0x00000000
00000000000000000000000000000000
**BL[3]: 0 0000 0000 0000 0x00000000 0x00000000
00000000000000000000000000000000
Image file ac100.bct.new has been successfully generated!
dpavlin@nuc:/nuc/Tegra/cbootimage$ scp ac100.bct.new ac100:
dpavlin@nuc:/nuc/Tegra/cbootimage$ ssh root@ac100
# flash new boot image on ac100
root@ac100:~# echo 0 > /sys/block/mmcblk1boot0/force_ro
root@ac100:~# dd if=/home/dpavlin/ac100.bct.new of=/dev/mmcblk1boot0
1045+0 records in
1045+0 records out
535040 bytes (535 kB, 522 KiB) copied, 0.135589 s, 3.9 MB/s
root@ac100:~# echo 1 > /sys/block/mmcblk1boot0/force_ro
create bct backup
dpavlin@ac100:~$ sudo dd if=/dev/mmcblk1boot0 of=ac100-dpavlin-0.bct bs=4080 count=1
[sudo] password for dpavlin:
1+0 records in
1+0 records out
4080 bytes (4.1 kB, 4.0 KiB) copied, 0.0018642 s, 2.2 MB/s
dpavlin@ac100:~$ sudo dd if=/dev/mmcblk1boot1 of=ac100-dpavlin-1.bct bs=4080 count=1
1+0 records in
1+0 records out
4080 bytes (4.1 kB, 4.0 KiB) copied, 0.0019622 s, 2.1 MB/s
in my case, first bct doesn't have OdmData, while 2nd does:
dpavlin@nuc:/nuc/Tegra$ grep Odm 0 1
0:OdmData = 0x00000000;
1:OdmData = 0x800c0075;
i2c
root@ac100:~# i2cdetect -y -r 0
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- UU --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 4f
50: 50 51 52 53 54 55 56 57 -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
root@ac100:~# i2cdetect -y -r 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
root@ac100:~# i2cdetect -y -r 2
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- UU -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- UU -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --