Hello everyone,
I am committed to interfacing Omap-L137 to LCD module Formike KWH018TG02-F01, which embeds HIMAX HX8353-D controller.
Omap-L137 interface to LCD module is LIDD mode 8080 as per SPRUGB7 LCDC User's Guide.
Max resolution is 128(RGB)x160, 8bpp; 65/262K colours.
Development environment is linux-arago 2.6.37
Main kernel configuration parameters are:
#
# DaVinci Core Type
#
# CONFIG_ARCH_DAVINCI_DM644x is not set
# CONFIG_ARCH_DAVINCI_DM355 is not set
# CONFIG_ARCH_DAVINCI_DM646x is not set
CONFIG_ARCH_DAVINCI_DA830=y
# CONFIG_ARCH_DAVINCI_DA850 is not set
CONFIG_ARCH_DAVINCI_DA8XX=y
# CONFIG_ARCH_DAVINCI_DM365 is not set
# CONFIG_ARCH_DAVINCI_TNETV107X is not set
#
# DaVinci Board Type
#
CONFIG_MACH_DAVINCI_DA830_EVM=y
CONFIG_DA830_UI_LCD=y
# CONFIG_DA830_UI_NAND is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
CONFIG_DAVINCI_MUX=y
# CONFIG_DAVINCI_MUX_DEBUG is not set
# CONFIG_DAVINCI_MUX_WARNINGS is not set
# CONFIG_DAVINCI_RESET_CLOCKS is not set
# CONFIG_DAVINCI_MCBSP is not set
#
# Graphics support
#
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_BOTH_ENDIAN=y
# CONFIG_FB_BIG_ENDIAN is not set
# CONFIG_FB_LITTLE_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set
#
# Frame buffer hardware drivers
#
CONFIG_FB_S1D13XXX=y
# CONFIG_FB_VIRTUAL is not set
CONFIG_FB_DA8XX=m
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=y
# CONFIG_LCD_L4F00242T03 is not set
# CONFIG_LCD_LMS283GF05 is not set
# CONFIG_LCD_LTV350QV is not set
# CONFIG_LCD_TDO24M is not set
# CONFIG_LCD_VGG2432A4 is not set
# CONFIG_LCD_PLATFORM is not set
# CONFIG_LCD_S6E63M0 is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_GENERIC=y
# CONFIG_BACKLIGHT_ADP8860 is not set
I could understand myself that da8xx-fb.ko is the LCD framebuffer driver, which I can compile, insmod and rmmod safely as a module.
However the /dev/fb0 node file is not created within the Linux FileSystem by the kernel.
When the LCD driver is statically compiled within the Kernel, no sign of LCD discovery/initialization is found on the boot log.
Again the /dev/fb0 node file is not created within the Linux FileSystem
1)Where the LCD initialization is performed ?
I could not find da830_evm_init_lcdc() calling function
2)How can the correct /dev/fb0 node file be created ?
3)Is my LCD module "compliant" with some models outlined on kernel config ?
4)Where can I find the "fbtest" application source files, referenced by http://processors.wiki.ti.com/index.php/OMAP-L137/DA830_Linux_LCD_driver#Demos_-_fbtest
I surfed TI e2ewith no definitive answers, so every helpful advice/example is welcome.
Thank you for your attention.