Native compile Linux kernel on i.MX6ULL platform

[esky-sh]

Normally Linux kernel is built on various x86 architecture platform which we call it "cross-compiling" or "cross-development". In this test we will take a NXP i.MX6ULL 900MHz platform as build machine to make a native compiling of Linux kernel. And this make possible to compare the performance with the main stream x86 desktop.

Environment
Platform Name---Innostick 6
CPU-----------------i.MX6ULL 900MHz
RAM-----------------512MB DDR3L
eMMC---------------16GB
Network------------WiFi

====Pre-requirements====

• An Innostick 6 pre-loaded with Debian Stretch
• NXP U-Boot: https://source.codeaurora.org/external/imx/uboot-imx
• NXP i.MX6 Kernel: https://source.codeaurora.org/external/imx/linux-imx
• Innostick6 Kernel: https://github.com/NXElec/linux-innostick6

====CPU Info.====

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debian@arm:/opt/innostick6$ lscpu
Architecture: armv7l
Byte Order: Little Endian
CPU(s): 1
On-line CPU(s) list: 0
Thread(s) per core: 1
Core(s) per socket: 1
Socket(s): 1
Model: 5
Model name: ARMv7 Processor rev 5 (v7l)
CPU max MHz: 900.0000
CPU min MHz: 198.0000
BogoMIPS: 13.63
Flags: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae

====Debian Version====

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debian@arm:/opt/innostick6$ cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 9 (stretch)"
NAME="Debian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/

====Install build-essential====

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sudo apt-get install build-essential libncurses5-dev lzop

====Disk Info.====

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debian@arm:/opt/innostick6$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 14G 2.5G 11G 20% /
devtmpfs 86M 0 86M 0% /dev
tmpfs 247M 0 247M 0% /dev/shm
tmpfs 247M 10M 237M 5% /run
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 247M 0 247M 0% /sys/fs/cgroup
tmpfs 50M 4.0K 50M 1% /run/user/112
tmpfs 50M 0 50M 0% /run/user/1000

====Build U-Boot====
Get source code：

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git clone https://source.codeaurora.org/external/imx/uboot-imx -b imx_v2017.03_4.9.88_2.0.0_ga

Start to Compile:

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cd uboot-imx
make clean
make mx6ull_14x14_evk_defconfig
make

====Build Kernel====
Get source code：

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git clone https://source.codeaurora.org/external/imx/linux-imx -b imx_4.9.88_2.0.0_ga

Start to compile

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cd linux-imx
make imx_v7_defconfig
make

====Check Disk Info. Again====

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debian@arm:/opt/innostick6/linux-imx$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 14G 3.4G 9.6G 26% /
devtmpfs 86M 0 86M 0% /dev
tmpfs 247M 0 247M 0% /dev/shm
tmpfs 247M 6.9M 240M 3% /run
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 247M 0 247M 0% /sys/fs/cgroup
tmpfs 50M 4.0K 50M 1% /run/user/112
tmpfs 50M 0 50M 0% /run/user/1000

====Time Consumption====
Approximately 210 minutes