ibox4412 移植ubuntu(kernel3.8.13+13.10 from FriendlyArm and odroid)
成功实现 友善/odroid 3.8.13内核和13.10ubuntu在ibox上移植(SD卡)
实现功能:
无线上网,HDMI1080P(音频同步)输出,视频播放,声卡,触摸屏,lcd等常用驱动完全移植
分享下步骤
1、移植linux内核,参考ibox4412 3.0和3.5内核,友善移植odroid的3.8.13内核,具体内容略过
HDMI相关驱动有三个地方:
\linux-3.8.13\drivers\media\video\s5p-tv (第一处不参加编译,不使用)
\linux-3.8.13\drivers\media\platform\s5p-tv (第二处内核驱动代码完全与第一处相同,可以完全使用,创建3个fb设备节点和3个video设备节点)
驱动需要配置
static struct i2c_board_info hdmiphy_info = { I2C_BOARD_INFO("s5p_hdmiphy", 0x38), // I2C_BOARD_INFO("hdmiphy-exynos4412", 0x38), };
和
s5p_i2c_hdmiphy_set_platdata(NULL); s5p_hdmi_set_platdata(&hdmiphy_info, NULL, 0, EXYNOS4_GPX3(7)); s5p_hdmi_cec_set_platdata(&hdmi_cec_data);\\192.168.56.102\workspace\4412\tiny\linux-3.8.13\drivers\gpu\drm\exynos(使用drm方式,只注册了一个fb5,这个是友善官方默认使用的方式)
驱动需要配置
static struct i2c_board_info hdmiphy_info = { // I2C_BOARD_INFO("s5p_hdmiphy", 0x38), I2C_BOARD_INFO("hdmiphy-exynos4412", 0x38), };和
s5p_i2c_hdmiphy_set_platdata(NULL); s5p_hdmi_set_platdata(&hdmiphy_info, NULL, 0, EXYNOS4_GPX3(7)); s5p_hdmi_cec_set_platdata(&hdmi_cec_data); /* FIXME: hdmiphy i2c adapter has dynamic ID, and setting it to 8 causes * a failure to initialize (can't find clock?). so for now we are relying * on the hdmiphy i2c adapter being dynamically assigned address 8. */ i2c_register_board_info(8, &hdmiphy_info, 1);
ubuntu_sd_nanopc_t1.img
查看镜像分区信息
root@ubuntu:/workspace# fdisk -l ubuntu_sd_nanopc_t1.img Disk ubuntu_sd_nanopc_t1.img: 6396 MB, 6396313600 bytes 255 heads, 63 sectors/track, 777 cylinders, total 12492800 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 Disk identifier: 0x000c4046 Device Boot Start End Blocks Id System ubuntu_sd_nanopc_t1.img1 102400 204799 51200 b W95 FAT32 ubuntu_sd_nanopc_t1.img2 204800 12492799 6144000 83 Linux
ubuntu文件系统在img2里面
挂在文件系统
mount -o loop,offset=104857600 ubuntu_sd_nanopc_t1.img udisk
然后将udisk里面的内容全部复制到sd卡制定ext4 分区中
3、为了支持hdmi输出,需要设置
etc/X11/xorg.conf
# X.Org X server configuration file for xfree86-video-mali Section "Device" Identifier "Mali-Fbdev" Driver "mali" Option "fbdev" "/dev/fb5" Option "DRI2" "true" Option "DRI2_PAGE_FLIP" "false" Option "DRI2_WAIT_VSYNC" "true" Option "UMP_CACHED" "true" Option "UMP_LOCK" "false" Option "G2D_DEVICE" "/dev/video2" Option "G2D_ENABLE" "false" Option "DPMS" "false" EndSection Section "Screen" Identifier "Default Screen" Device "Mali-Fbdev" DefaultDepth 24 EndSection Section "DRI" Mode 0666 EndSection根据节点情况进行设置
4、为了使用户登录使有管理员权限
修改etc/sudoers
# # This file MUST be edited with the 'visudo' command as root. # # Please consider adding local content in /etc/sudoers.d/ instead of # directly modifying this file. # # See the man page for details on how to write a sudoers file. # Defaults env_reset Defaults mail_badpass Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" # Host alias specification # User alias specification # Cmnd alias specification # User privilege specification root ALL=(ALL:ALL) ALL <pre name="code" class="cpp">t1<span style="white-space:pre"> </span>ALL=(ALL:ALL) ALL
lj<span style="white-space:pre"> </span>ALL=(ALL:ALL) ALL# Members of the admin group may gain root privileges%admin ALL=(ALL) ALL# Allow members of group sudo to execute any command%sudo ALL=(ALL:ALL) ALL# See sudoers(5) for more information on "#include" directives:#includedir /etc/sudoers.d
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