User`s guide

Supporting the i.MX53 Reference Board DISP0 LCD
i.MX53 System Development User’s Guide, Rev. 1
18-6 Freescale Semiconductor
When <name> is included in the mode_option argument parameters, the timing is not calculated. Instead,
it is extracted from BSP code. Valid default modes can be found at linux/drivers/video/modedb.c and in
files placed at linux/drivers/video/mxc folder.
Example 18-1. DVI Monitor Connected to Display Port 0
For a DVI monitor connected to display port 0, the kernel command is
video=mxcdi0fb:RGB24,1024x768M-16@60
Table 18-4 shows how the values in this example correspond to the argument names defined in Table 18-3.
Example 18-2. VGA LCD Connected to Display Port 0
For a VGA LCD connected to display port 0, the kernel command is
video=mxcdi0fb:RGB565,800x480M-16@55
M Timing calculated using VESA(TM) NA M
R Timing using reduced blanking NA R
bpp Bits per pixel on frame buffer bits Decimal value (16 or 24)
refresh LCD refresh rate Hz Decimal value
Table 18-4. XGA DVI Monitor Example Variables
Argument Name Value Definition
interface_id mxcdi0fb Display interface 0 settings
interface_pix_fmt RGB24 RGB bus is 24 bits width DISP0_DAT[23:0]- RGB888
name Not used in this command —
xres 1024 1024 pixels (Horizontal)
yres 768 768 lines (vertical)
M M Timings calculated using VESA(TM)
R Not used in this command —
bpp 16 Frame buffer is 16 bits per pixel
refresh 60 60 Hz
Table 18-3. Parameter Information
Argument Name Definition Units Values