内核中
System Type->Freescale MXC Implementations下的PCI Express选项
PCI Express support
[ ] PCI Express EP mode in the IMX6 RC/EP interconnection system
[ ] PCI Express RC mode in the IMX6 RC/EP interconnection system
在内核中通过补丁pcie_cap_patch.patch 向kernel中添加TW6865相关的驱动和配置；并在内核的选项选上tw68系列的encoder的编码器
<*> Multimedia support --->
Video capture adapters --->
Encoders, decoders, sensors and other helper chips --->
<*> pcie TW68 video encoder
make uImage,出现编译错误：
CC init/version.o
LD init/built-in.o
LD .tmp_vmlinux1
drivers/built-in.o: In function `start_preview':
clkdev.c:(.text+0x139854): undefined reference to `foreground_sdc_select'
clkdev.c:(.text+0x13986c): undefined reference to `bg_overlay_sdc_select'
drivers/built-in.o: In function `stop_preview':
clkdev.c:(.text+0x1398dc): undefined reference to `foreground_sdc_deselect'
clkdev.c:(.text+0x1398e8): undefined reference to `bg_overlay_sdc_deselect'
make: *** [.tmp_vmlinux1] Error 1
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