Kodi on an Odroid C1+

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This wiki is describing how to get a working kodi on the framebuffer with video acceleration to work on an Odroid C1+

Installation of the ground system

Prepare the SD card an boot the system

At first you must install a linux image to sdcard to boot the odroid. I'm recommending the ARM Image. Follow the instructions on this site. I'm descriping how to install Gentoo on an USB hard disc.

I'm describing here the base steps. For more information see the Handbook.

Preparing the disk

At first you must prepare the USB disc at which we install gentoo. You need 2 partitions. A swap an a root partition.

root #fdisk -l /dev/sda
Disk /dev/sda: 74.5 GiB, 80026361856 bytes, 156301488 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x702c75f2

Device     Boot   Start       End   Sectors  Size Id Type
/dev/sda1          2048   4196351   4194304    2G 82 Linux swap / Solaris
/dev/sda2       4196352 156301311 152104960 72.5G 83 Linux

Now you need a filesystem.

root #mkswap /dev/sda1
root #mkfs.ext4 /dev/sda2

Mounting the USB disk and installing the stage archive

root #mkdir /mnt/gentoo
root #mount /dev/sda2 /mnt/gentoo

Now download the stage3 archive and extract it.

root #cd /mnt/gentoo
root #tar -xjpf stage3-armv7a_hardfp-20151025.tar.bz2

Mounting the necessary filesystems

root #mount -t proc proc /mnt/gentoo/proc
root #mount --rbind /sys /mnt/gentoo/sys
root #mount --rbind /dev /mnt/gentoo/dev
root #mount /dev/mmvblk0p1 /mnt/gentoo/boot

Entering the new environment

No we enter the new environment.

root #chroot /mnt/gentoo /bin/bash
root #source /etc/profile
root #env-update

Downloading the portage-tree and adding some overlays

To download the portage-tree, type in:

root #emerge-webrsync

Now we add 2 overlays which we need for our odroid c1+.

The odroidc1 overlay and the odroidberry containing the necessary files.

To add the overlays edit /etc/portage/repos.conf/overlays.

FILE /etc/portage/repos.conf/overlaysOverlay configuration
[odroidberry]
location = /usr/local/portage/odroidberry
sync-type = git
sync-uri = git://github.com/dsiggi/odroidberry
auto-sync = yes
 
[odroidc1-overlay]
location = /usr/local/portage/odroidc1
sync-type = git
sync-uri = git://github.com/tbe/odroidc1-overlay
auto-sync = yes

Now create the directories for the overlays and sync them

root #mkdir /usr/local/portage
root #emaint sync -a

Editing make.conf

Here is my sample make.conf. This on should work for you but you can change it your choice.

FILE /etc/portage/make.confExample of my make.conf
# These settings were set by the catalyst build script that automatically
# built this stage.
# Please consult /usr/share/portage/config/make.conf.example for a more
# detailed example.
CFLAGS="-O3 -pipe -march=armv7-a -mtune=cortex-a5 -mfpu=vfpv3-d16 -mfloat-abi=hard"
CXXFLAGS="${CFLAGS}"
# WARNING: Changing your CHOST is not something that should be done lightly.
# Please consult http://www.gentoo.org/doc/en/change-chost.xml before changing.
CHOST="armv7a-hardfloat-linux-gnueabi"
# These are the USE flags that were used in addition to what is provided by the
# profile used for building.
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j5"

#MAKEOPTS="-j9 -l4" #With distcc and a 4 core server
#FEATURES="distcc distcc-pump" #For distcc

USE="bindist -X nls unicode -gles -gles1 -gles2 -egl -opengl"
LINGUAS="de"

PORTDIR="/var/db/repos/gentoo"
DISTDIR="/var/cache/distfiles"
PKGDIR="/var/cache/binpkgs"
PORTDIR_OVERLAY="/usr/local/portage/odroidc1 /usr/local/portage/odroidberry"

GENTOO_MIRRORS="http://ftp.uni-erlangen.de/pub/mirrors/gentoo"

Installing the kernel sources and necessary packages

Now you can install the kernel, u-boot-tools and dracut.

root #emerge --ask =odroidc1-sources-3.10.80-r20151008
root #emerge --ask u-boot-tools-odroidc1
root #emerge --ask dracut

Build the kernel

Do the following:

root #cd /usr/src/linux
root #make odroidc_defconfig

Now you have a standard config for your odroid c1+. If you wish you can configure the kernel like you want.

To build the kernel do the following:

root #make uImage
root #make modules
root #make dtbs
root #make modules_install

Install the kernel

To install the kernel you must do the following.

root #dracut --kver 3.10.80-r20151008-odroidc1
root #mkimage -A arm -O linux -T ramdisk -C none -a 0 -e 0 -n "uInitrd 3.10.80-r20151008-odroidc1" -d /boot/initramfs-3.10.80-r20151008-odroidc1.img /boot/uInitrd-gentoo
root #cp /usr/src/linux/arch/arm/boot/uImage /boot/uImage-gentoo
root #cp /usr/src/linux/arch/arm/boot/dts/meson8b_odroidc.dtb /boot/

No edit /boot/boot.ini and change the variable "bootargs" to match to your root device. Then also change the 2 lines unter "# Booting" to match to your uImage and uImagerd.

FILE /boot/boot.iniExample of my boot.ini
ODROIDC-UBOOT-CONFIG

# Possible screen resolutions
# Uncomment only a single Line! The line with setenv written.
# At least one mode must be selected.

# setenv m "vga"          	# 640x480
# setenv m "480p"         	# 720x480
# setenv m "576p"         	# 720x576
# setenv m "800x480p60hz" 	# 800x480
# setenv m "800x600p60hz" 	# 800x600
# setenv m "1024x600p60hz"	# 1024x600
# setenv m "1024x768p60hz"	# 1024x768
# setenv m "1360x768p60hz" 	# 1360x768
# setenv m "1440x900p60hz"	# 1440x900
# setenv m "1600x900p60hz"	# 1600x900
# setenv m "1680x1050p60hz"	# 1680x1050
# setenv m "720p"         	# 720p 1280x720
# setenv m "800p"         	# 1280x800
# setenv m "sxga"         	# 1280x1024
# setenv m "1080i50hz"          # 1080I@50Hz
# setenv m "1080p24hz"          # 1080P@24Hz
# setenv m "1080p50hz"          # 1080P@50Hz
setenv m "1080p"                # 1080P@60Hz
# setenv m "1920x1200"    	# 1920x1200

# HDMI DVI Mode Configuration
setenv vout_mode "hdmi"
# setenv vout_mode "dvi"

# HDMI BPP Mode
setenv m_bpp "32"
# setenv m_bpp "24"
# setenv m_bpp "16"

# HDMI Hotplug Force (HPD)
# 1 = Enables HOTPlug Detection
# 0 = Disables HOTPlug Detection and force the connected status
setenv hpd "0"

# CEC Enable/Disable (Requires Hardware Modification)
# 1 = Enables HDMI CEC
# 0 = Disables HDMI CEC
setenv cec "0"

# PCM5102 I2S Audio DAC
# PCM5102 is an I2S Audio Dac Addon board for ODROID-C1+
# Uncomment the line below to __ENABLE__ support for this Addon board.
# setenv enabledac "enabledac"

# UHS Card Configuration
# Uncomment the line below to __DISABLE__ UHS-1 MicroSD support
# This might break boot for some brand models of cards.
setenv disableuhs "disableuhs"


# Disable VPU (Video decoding engine, Saves RAM!!!)
# 0 = disabled
# 1 = enabled
setenv vpu "1"

# Disable HDMI Output (Again, saves ram!)
# 0 = disabled
# 1 = enabled
setenv hdmioutput "1"

# Default Console Device Setting
# setenv condev "console=ttyS0,115200n8"        # on serial port
# setenv condev "console=tty0"                    # on display (HDMI)
setenv condev "console=ttyS0,115200n8 console=tty0"   # on both



###########################################

if test "${hpd}" = "0"; then setenv hdmi_hpd "disablehpd=true"; fi
if test "${cec}" = "1"; then setenv hdmi_cec "hdmitx=cecf"; fi

# Boot Arguments
#ARCH
#setenv bootargs "root=UUID=e139ce78-9841-40fe-8823-96a304a09859 rootwait ro ${condev} no_console_suspend vdaccfg=0xa000 logo=osd1,loaded,0x7900000,720p,full dmfc=3 cvbsmode=576cvbs hdmimode=${m} m_bpp=${m_bpp} vout=${vout_mode} ${disableuhs} ${hdmi_hpd} ${hdmi_cec} ${enabledac}"
#Gentoo
setenv bootargs "root=UUID=350cd0e3-6fab-4532-b64b-bdb6994263a5 rootwait ro ${condev} no_console_suspend vdaccfg=0xa000 logo=osd1,loaded,0x7900000,720p,full dmfc=3 cvbsmode=576cvbs hdmimode=${m} m_bpp=${m_bpp} vout=${vout_mode} ${disableuhs} ${hdmi_hpd} ${hdmi_cec} ${enabledac}"

# Booting
fatload mmc 0:1 0x21000000 uImage-gentoo
fatload mmc 0:1 0x22000000 uInitrd-gentoo
fatload mmc 0:1 0x21800000 meson8b_odroidc.dtb
fdt addr 21800000

if test "${vpu}" = "0"; then fdt rm /mesonstream; fdt rm /vdec; fdt rm /ppmgr; fi

if test "${hdmioutput}" = "0"; then fdt rm /mesonfb; fi

Finish installation

At first you must install a small script to get and output on your screen.

root #chmod +x /usr/bin/c1_init

To get the script to work you must install fbset:

root #emerge --ask fbset

No we need an init.d-script for it:

FILE /etc/init.d/c1_initc1_init.d-script
#!/sbin/openrc-run
# Distributed under the terms of the GNU General Public License v2

description="Setting up framebuffer"

depend() {
       need localmount
}

start() {
        ebegin "Starting c1_init"
        eval /usr/bin/c1_init
        retval=$?
        veend ${retval} "Execution of \"c1_init\" failed."
}

Activating the script:

root #rc-update add c1_init boot

Now do all the remaining steps from the Handbook, eg install an cron daemon an editing the config files. Then you can reboot your system.

Installation

Java

Java is required to install Kodi. The official Java implementation (dev-java/oracle-jdk-bin) was used in this guide, although it may be possible to use icedtea with the odroid:

root #echo "dev-java/oracle-jdk-bin -awt -fontconfig -nsplugin" >> /etc/portage/package.use
root #emerge --ask dev-java/oracle-jdk-bin

Kodi

When using ALSA audio output can be directed to a HDMI sound output or a USB soundcard. To use both pulseaudio must be enabled.

Add the alsa or pulseaudio USE flag values to the /etc/portage/package.use file.

To be able to shutdown the odroid from kodi and use a keyboard as input device the dbus, upower, udisks, and usb USE flags should be enabled. After setting the flags as desired, emerge Kodi:

The odroidc1 USE flag is necessary to add odroidc1 compatibility.

root #emerge --ask kodi::odroidberry
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