Latest revision as of 03:13, 29 September 2022

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Linux Kernel 3.18-rc5

Status

What currently works in Linux mainline:

UART
SPI
I2C
GPIOs / LEDs / IR
PWM
USB
SD/MMC
Ethernet
Wifi
BT

What remains to be done:

DRM Display driver / LCD controller
HDMI drivers (ITE66121 / RK616)
TV OUT drivers (RK1000)
NAND flash support

Requirements

Ubuntu 14.10 / GCC 4.9+ (GCC 4.8 is not supported)

sudo apt-get install git build-essential gcc-arm-linux-gnueabihf lzop libncurses5-dev libssl-dev bc

Get the source code

Get linux-next kernel tree (stable branch), default config and updated device-tree.

git clone -b stable --depth 1 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
cd linux-next

wget http://rockchip.fr/radxa/linux/rockchip_defconfig -O arch/arm/configs/rockchip_defconfig
wget http://rockchip.fr/radxa/linux/rk3188-radxarock.dts -O arch/arm/boot/dts/rk3188-radxarock.dts

Build kernel

We have to build two files:

zImage (the kernel)
rk3188-radxarock.dtb (the device tree blob)

export ARCH=arm
export CROSS_COMPILE=arm-linux-gnueabihf-

make rockchip_defconfig
make -j8 zImage dtbs

Create boot image

Install mkbootimg if you don't have it on your system.

   git clone https://github.com/neo-technologies/rockchip-mkbootimg.git
   cd rockchip-mkbootimg
   make
   sudo make install
   cd ..

We need to append the device tree blob to zImage (CONFIG_ARM_APPENDED_DTB option) until we can use U-Boot device tree support.

cat arch/arm/boot/zImage arch/arm/boot/dts/rk3188-radxarock.dtb > zImage-dtb

get ramdisk

   git clone https://github.com/radxa/initrd.git
   find . ! -path "./.git*"  | cpio -H newc  -ov > initrd.img

Create the boot.img using mkbootimg (Rockchip version).

mkbootimg --kernel zImage-dtb --ramdisk initrd.img -o boot.img

Flash parameter and boot image

Get a parameter file from http://dl.radxa.com/rock/images/parameter

wget http://dl.radxa.com/rock/images/parameter/parameter_linux_sd

Flash parameter and boot.img using rkflashtool

rkflashtool P < parameter_linux_sd
rkflashtool w boot < boot.img
rkflashtool b

Notes

Install Rootfs in first partition of SD card

Your rootfs should be in ext4 format. It will be loaded from /dev/mmcblk0p1 by default.

Wireless

The Realtek wifi chipsets require firmwares to be installed in /lib/firmware/rtlwifi

You can get them by installing the linux-firmware package from your Linux distribution

sudo apt-get install linux-firmware

or download them from here: http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/rtlwifi

BT

The rtl8723au_bt driver is not in the mainline kernel yet, but you can build it this way:

git clone -b new https://github.com/lwfinger/rtl8723au_bt.git
cd rtl8723au_bt/Linux_BT_USB_2.11.20140423_8723BE/
wget http://rockchip.fr/radxa/linux/patches/rtl8723au_bt/0001-Add-hci_recv_fragment-function.patch
git am 0001-Add-hci_recv_fragment-function.patch
make KDIR=../..

Copy the firmware files and rtk_btusb.ko into your rootfs:

8723A/rtl8723a_fw -> /lib/firmware/rtl8723a_fw
8723B/rtl8723b_fw -> /lib/firmware/rtl8723b_fw

@@ Line 1: / Line 1: @@
-= Linux Kernel 3.17 =
+{{rock_header}}
+{{Languages | rock/Linux_Mainline}}
+= Linux Kernel 3.18-rc5 =
 == Status ==
@@ Line 7: / Line 10: @@
 * SPI
 * I2C
-* GPIOs / LEDs
+* GPIOs / LEDs / IR
+* PWM
 * USB
 * SD/MMC
 * Ethernet
+* Wifi
+* BT
 What remains to be done:
 * DRM Display driver / LCD controller
-* HDMI / TV OUT drivers
+* HDMI drivers (ITE66121 / RK616)
+* TV OUT drivers (RK1000)
 * NAND flash support
-== Download ==
+== Requirements ==
-Get '''linux-next''' kernel tree, default config and initramfs.cpio.
+Ubuntu 14.10 / GCC 4.9+ (GCC 4.8 is not supported)
-  git clone --depth 1 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
+ sudo apt-get install git build-essential gcc-arm-linux-gnueabihf lzop libncurses5-dev libssl-dev bc
+== Get the source code ==
+Get '''linux-next''' kernel tree (stable branch), default config and updated device-tree.
+  git clone -b stable --depth 1 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
   cd linux-next
-  wget http://www.sntech.de/rockchip/rockchip_defconfig -O arch/arm/configs/rockchip_defconfig
+  wget http://rockchip.fr/radxa/linux/rockchip_defconfig -O arch/arm/configs/rockchip_defconfig
-  wget http://www.sntech.de/rockchip/initramfs.cpio
+  wget http://rockchip.fr/radxa/linux/rk3188-radxarock.dts -O arch/arm/boot/dts/rk3188-radxarock.dts
 == Build kernel ==
@@ Line 42: / Line 54: @@
 == Create boot image ==
+Install mkbootimg if you don't have it on your system.
+    git clone https://github.com/neo-technologies/rockchip-mkbootimg.git
+    cd rockchip-mkbootimg
+    make
+    sudo make install
+    cd ..
 We need to append the device tree blob to zImage (CONFIG_ARM_APPENDED_DTB option) until we can use U-Boot device tree support.
   cat arch/arm/boot/zImage arch/arm/boot/dts/rk3188-radxarock.dtb > zImage-dtb
+==get ramdisk==
+    git clone https://github.com/radxa/initrd.git
+    find . ! -path "./.git*"  | cpio -H newc  -ov > initrd.img
 Create the '''boot.img''' using mkbootimg (Rockchip version).
-  mkbootimg --kernel zImage-dtb --ramdisk initramfs.cpio -o boot.img
+  mkbootimg --kernel zImage-dtb --ramdisk initrd.img -o boot.img
-== Flash boot image ==
+== Flash parameter and boot image ==
-Flash boot.img using either '''rkflashtool''' or '''upgrade_tool''':
+Get a parameter file from http://dl.radxa.com/rock/images/parameter
+ wget http://dl.radxa.com/rock/images/parameter/parameter_linux_sd
+Flash parameter and boot.img using [https://github.com/linux-rockchip/rkflashtool '''rkflashtool''']
+ rkflashtool P < parameter_linux_sd
   rkflashtool w boot < boot.img
   rkflashtool b
-  upgrade_tool di -b boot.img
+= Notes =
-  upgrade_tool rd
+== Install Rootfs in first partition of SD card ==
+Your rootfs should be in ext4 format. It will be loaded from '''/dev/mmcblk0p1''' by default.
+== Wireless ==
+The Realtek wifi chipsets require firmwares to be installed in '''/lib/firmware/rtlwifi'''
+You can get them by installing the '''linux-firmware''' package from your Linux distribution
+  sudo apt-get install linux-firmware
+or download them from here: http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/rtlwifi
+== BT ==
+The '''rtl8723au_bt''' driver is not in the mainline kernel yet, but you can build it this way:
+ git clone -b new https://github.com/lwfinger/rtl8723au_bt.git
+  cd rtl8723au_bt/Linux_BT_USB_2.11.20140423_8723BE/
+ wget http://rockchip.fr/radxa/linux/patches/rtl8723au_bt/0001-Add-hci_recv_fragment-function.patch
+ git am 0001-Add-hci_recv_fragment-function.patch
+ make KDIR=../..
+Copy the firmware files and '''rtk_btusb.ko''' into your rootfs:
+A/rtl8723a_fw -> /lib/firmware/rtl8723a_fw
+B/rtl8723b_fw -> /lib/firmware/rtl8723b_fw

Difference between revisions of "Rock/Linux Mainline"