Orange Pi PC

Requisitos

Gentoo

crossdev -P -v -t armv7a-hardfloat-linux-gnueabi
PYTHON=python2 emerge u-boot-tools

Limpar

Escrever zeros no inicio do cartão para ter a certeza que não tem restos de outro bootloader.

dd if=/dev/zero of=/dev/sdX bs=1M count=8

Criar Partição

Criar a partição com o inicio a partir do sector 4096.

fdisk /dev/sdX

Filesystem

Criar o filesystem com esta opção hacker que ripei de outro artigo.

mkfs.ext4 -O ^metadata_csum /dev/sdX1

Copiar o Userland

mkdir /mnt/opipc
mount /dev/sdX1 /mnt/opipc
mkdir ~/opipc
cd ~/opipc

Gentoo

Sacar o mais recente de http://distfiles.gentoo.org/releases/arm/autobuilds/current-stage3-armv7a_hardfp/

wget http://distfiles.gentoo.org/releases/arm/autobuilds/current-stage3-armv7a_hardfp/stage3-armv7a_hardfp-????????.tar.bz2
tar xfa stage3-armv7a_hardfp-????????.tar.bz2 -C /mnt/opipc

fstab

Editar o /mnt/opipc/etc/fstab e usar o seguinte, ou então editar conforme necessario (tipo adicionar swap).

<file system>          <dir>   <type>  <options>               <dump>  <pass>
/dev/mmcblk0p1          /       ext4    defaults,noatime        0       1
#/dev/mmcblk0p2         none    swap    defaults                0       0

boot.scr

Criar o ficheiro /mnt/opipc/boot/boot.cmd com o seguinte conteudo:

part uuid ${devtype} ${devnum}:${bootpart} uuid
setenv bootargs console=${console} root=PARTUUID=${uuid} rw rootwait

if load ${devtype} ${devnum}:${bootpart} ${kernel_addr_r} /boot/zImage; then
  if load ${devtype} ${devnum}:${bootpart} ${fdt_addr_r} /boot/dtbs/${fdtfile}; then
    if load ${devtype} ${devnum}:${bootpart} ${ramdisk_addr_r} /boot/initramfs-linux.img; then
      bootz ${kernel_addr_r} ${ramdisk_addr_r}:${filesize} ${fdt_addr_r};
    else
      bootz ${kernel_addr_r} - ${fdt_addr_r};
    fi;
  fi;
fi

if load ${devtype} ${devnum}:${bootpart} 0x48000000 /boot/uImage; then
  if load ${devtype} ${devnum}:${bootpart} 0x43000000 /boot/script.bin; then
    setenv bootm_boot_mode sec;
    bootm 0x48000000;
  fi;
fi

E correr o mkimage para criar o boot.scr.

cd /mnt/opipc/boot
mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n "Orange Pi PC boot script" -d boot.cmd boot.scr

U-Boot

cd ~/opipc
git clone git://git.denx.de/u-boot.git u-boot
cd u-boot
make ARCH=arm CROSS_COMPILE=armv7a-hardfloat-linux-gnueabi- -j4 orangepi_pc_defconfig
PYTHON=python2 make ARCH=arm CROSS_COMPILE=armv7a-hardfloat-linux-gnueabi- -j4

E gravar o bootloader no cartão com:

dd if=u-boot-sunxi-with-spl.bin of=/dev/sdX bs=1024 seek=8

Kernel

kernel config file

cd ~/opipc

# Já não estou a usar este
# git clone https://github.com/megous/linux -b orange-pi-4.17 linux

# Passei a usar o mainline
wget https://git.kernel.org/torvalds/t/linux-4.20-rc4.tar.gz
tar xfv linux-4.20-rc4.tar.gz
cd linux-4.20-rc4

# Sacar o config anexado a esta pagina
wget https://wikipeida.deadbsd.org/images/8/81/Config.txt
mv Config.txt .config

# menuconfig, se necessario
make ARCH=arm CROSS_COMPILE=armv7a-hardfloat-linux-gnueabi- menuconfig

# sem modulos
make ARCH=arm CROSS_COMPILE=armv7a-hardfloat-linux-gnueabi- zImage dtbs -j4

# com modulos
make ARCH=arm CROSS_COMPILE=armv7a-hardfloat-linux-gnueabi- zImage dtbs modules -j4

cp arch/arm/boot/zImage /mnt/opipc/boot
cp arch/arm/boot/dts/sun8i-h3-orangepi-pc.dtb /mnt/opipc/boot/dtbs/sun8i-h3-orangepi-pc.dtb

# instalar modulos
# make ARCH=arm CROSS_COMPILE=armv7a-hardfloat-linux-gnueabi- INSTALL_MOD_PATH=~/opipc/root modules_install -j4
make ARCH=arm CROSS_COMPILE=armv7a-hardfloat-linux-gnueabi- INSTALL_MOD_PATH=/mnt/opipc modules_install -j4

Mali

Ler primeiro as instruções em sunxi-mali, não esquecer que é necessário activar as opções CONFIG_CMA e CONFIG_DMA_CMA no Kernel.

cd ~/opipc
git clone https://github.com/mripard/sunxi-mali.git || https://github.com/mansr/sunxi-mali.git
cd sunxi-mali
export ARCH=arm
export CROSS_COMPILE=armv7a-hardfloat-linux-gnueabi-
export KDIR=/root/opipc/linux-4.20-rc4
export INSTALL_MOD_PATH=/mnt/opipc
./build.sh -r r6p2 -b
./build.sh -r r6p2 -i

# Ignorar por enquanto ...
cd ~/opicp
git clone https://github.com/free-electrons/mali-blobs.git
cd mali-blobs
cp r6p2/arm/fbdev/lib* /mnt/opipc/usr/lib/

Cedrus

Ainda muito experimental (só está no 4.20-rc*), mas ver mais info em sunxi-cedrus. Primeiro ainda vou ter que descobrir como "empacotar" as linux-headers do Kernel para passar para a board sem dramas.

Finalizar

sync
umount /mnt/opipc
eject /dev/sdX

Ligações externas

• Orange Pi @ ArchWiki
• Orange Pi PC Quick Start @ GentooWiki