ODROID-C4

Board Description

Pin definition

• UART signals are driven at 1.8V.

Build Android

Download Toolchains

U-boot

http://releases.linaro.org/archive/14.09/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.9-2014.09_linux.tar.xz

http://releases.linaro.org/archive/14.04/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2014.04_linux.tar.xz

Linux kernel

https://releases.linaro.org/components/toolchain/binaries/6.3-2017.05/aarch64-linux-gnu/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu.tar.xz

Set PATH

$ export PATH=$PATH:/opt/toolchains/gcc-linaro-aarch64-none-elf-4.9-2014.09_linux/bin
$ export PATH=$PATH:/opt/toolchains/gcc-linaro-arm-none-eabi-4.8-2014.04_linux/bin
$ export PATH=$PATH:/opt/toolchains/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin

Check out full source code

32 bit

$ mkdir odroid-c4
$ cd odroid-c4
$ repo init -u https://github.com/hardkernel/android.git -b g12_9.0.0_master
$ repo sync

64 bit

$ mkdir odroid-c4
$ cd odroid-c4
$ repo init -u https://github.com/hardkernel/android.git -b g12_9.0.0_64_master
$ repo sync

Build

$ source build/envsetup.sh
$ lunch odroidc4-eng
$ make -j<core number>

One touch self install

Create image

make -j<core number> selfinstall

Burn image

$ sudo dd if=out/target/product/odroidc4/selfinstall-odroidc4.img of=/dev/sdd
$ sync
$ sudo eject /dev/sdd

Flashing images

• Enter fastboot mode by turning ON switch 3.
• Flash images by running the following commands:
  • fastboot flash boot out/target/product/hikey960/boot.img
• Turn OFF switch 3 and power cycle the board.

Enable UART

• In repo-common/hikey-linaro

diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index 80334e500..a2f1de30b 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -494,7 +494,7 @@
                        clock-names = "uartclk", "apb_pclk";
                        pinctrl-names = "default";
                        pinctrl-0 = <&uart0_pmx_func &uart0_cfg_func>;
-                       status = "disabled";
+                       status = "ok";
                };

                uart1: serial@fdf00000 {
@@ -508,7 +508,7 @@
                        clock-names = "uartclk", "apb_pclk";
                        pinctrl-names = "default";
                        pinctrl-0 = <&uart1_pmx_func &uart1_cfg_func>;
-                       status = "disabled";
+                       status = "ok";
                };

                uart2: serial@fdf03000 {

Setting the serial number

To set the random serial number, run

• • fastboot getvar nve:SN@16\_DIGIT\_NUMBER
• Bootloader exports the generated serial number to the kernel using androidboot.serialno=.

Setting monitor resolution

• Edit the device/linaro/hikey/hikey960/BoardConfig.mk parameter BOARD_KERNEL_CMDLINE and configure the video setting. For example, the setting for a 24-inch monitor is video=HDMI-A-1:1280x800@60.

Android note

• Disable ICMP for enable ping
  • sysctl -w net.ipv4.icmp_echo_ignore_all=0

Reference

• Build steps
• Pre build image