meta-freescale-3rdparty/recipes-bsp/u-boot/u-boot-script-gateworks-imx/6x_bootscript-yocto.txt

setenv _bscriptver "v1.01"

echo "## Gateworks Ventana Yocto Bootscript ${_bscriptver} ####################"

## First: Memory Allocations ###################################################
if test -z "${mem}" ; then
    echo "Detected ${mem_mb}MB DRAM - adjusting CMA memory allocation..."

    # Freescale doesn't provide a 'best practice' for choosing CMA. We determine
    # it using following formula (please customize mem to your own req's):
    #  cma=min(((${mem_mb}/2) - round(${mem_mb}*.125))M, 384M)
    if itest.s "x${mem_mb}" == "x256" ; then
        setenv mem "cma=96M"
    elif itest.s "x${mem_mb}" == "x512" ; then
        setenv mem "cma=192M"
    elif itest.s "x${mem_mb}" == "x1024" ; then
        setenv mem "cma=384M"
    elif itest.s "x${mem_mb}" == "x2048" ; then
        setenv mem "cma=384M"
    elif itest.s "x${mem_mb}" == "x4096" ; then
        setenv mem "cma=384M"
    else
        echo "Unable to pigeonhole memory. Defaulting CMA to 96M."
        setenv mem "cma=96M"
    fi
fi

if itest.s "x${mem}" == "xNA" ; then
    echo "Leaving CMA alone..."
else
    setenv extra "${extra}" "${mem}"
    echo "Memory configuration used from env mem: $mem"
fi

## Second: Video Options #######################################################
if test -z "${video}" ; then
    # locally used variables
    setenv fb_num 0
    setenv lvds_flag
    setenv hdmi_flag
    setenv cvbs_flag
    setenv max_disp 3 # 0-3 displays

    # Detect displays if req'd (HDMI->LVDS->CVBS)
    if test -z "$display" ; then
        if test -z "$panel" ; then
            # Start detection scheme
            i2c dev 2
            if hdmidet ; then # HDMI
                setenv display "$display" "HDMI"
                echo "HDMI Detected"
            fi
            if i2c probe 0x04 ; then # Freescale MXC-LVDS1
                setenv display "$display" "LVDS"
                echo "LVDS Detected"
            fi
            if i2c probe 0x14 ; then # DLC800FIGT3
                setenv display "$display" "LVDS"
                echo "LVDS Detected"
            fi
            if i2c probe 0x38 ; then # DLC700JMGT4
                setenv display "$display" "LVDS"
                echo "LVDS Detected"
            fi
        fi
    fi

    echo "Display(s) to configure: ${display}"

    # Configure displays
    for disp in ${display} ; do
        if itest.s "x${disp}" == "xHDMI" ; then
            if test -z "$hdmi_flag" ; then # Only allow one HDMI display
                setenv hdmi_flag 1
                test -n "$hdmi" || hdmi=1080p
                if itest.s "x${hdmi}" == "x1080p" ; then
                    setenv hdmi "1920x1080M@60"
                elif itest.s "x${hdmi}" == "x720p" ; then
                    setenv hdmi "1280x720M@60"
                elif itest.s "x${hdmi}" == "x480p" ; then
                    setenv hdmi "720x480M@60"
                fi
                setenv video "$video" "video=mxcfb${fb_num}:dev=hdmi,${hdmi},if=RGB24,bpp=32"

                echo "Setting HDMI Display to mxcfb${fb_num}"
                setexpr fb_num $fb_num + 1
            fi
        elif itest.s "x${disp}" == "xLVDS" ; then
            if test -z "$lvds_flag" ; then # Only allow one LVDS display
                setenv lvds_flag 1
                setenv video "$video" "video=mxcfb${fb_num}:dev=ldb,bpp=32,if=RGB666"

                echo "Setting LVDS Display to mxcfb${fb_num}"
                setexpr fb_num $fb_num + 1
            fi
        elif itest.s "x${disp}" == "xCVBS" ; then
            if test -z "$cvbs_flag" ; then # Only allow one CVBS display
                setenv cvbs_flag 1
                setenv video "$video" "video=mxcfb${fb_num}:dev=adv739x,BT656-NTSC,if=BT656,fbpix=RGB565,bpp=32"

                echo "Setting CVBS Display to mxcfb${fb_num}"
                setexpr fb_num $fb_num + 1
            fi
        else
            echo "${disp} is an unsupported display type (HDMI|LVDS|CVBS)."
        fi
    done

    # Add CVBS display if !(HDMI || LVDS || CVBS || DISPLAY || PANEL)
    if test -z "$hdmi_flag" ; then
        if test -z "$lvds_flag" ; then
            if test -z "$cvbs_flag" ; then
                if test -z "$display" ; then
                    if test -z "$panel" ; then
                        setenv cvbs_flag 1
                        setenv video "$video" "video=mxcfb${fb_num}:dev=adv739x,BT656-NTSC,if=BT656,fbpix=RGB565,bpp=32"

                        echo "Defaulting CVBS Display to mxcfb${fb_num}"
                        setexpr fb_num $fb_num + 1
                    fi
                fi
            fi
        fi
    fi

    # Mark the rest of the displays to 'off' if panel is not set
    if test -z "$panel" ; then
        while test "$fb_num" -le "$max_disp" ; do
            setenv video "$video" "video=mxcfb${fb_num}:off"
            setexpr fb_num $fb_num + 1
        done
    fi

    # Set only if video is set
    if test -n "$video" ; then
        setenv video "${video}"
    fi
fi
echo "Video configuration used from env video: $video"

echo "## End Gateworks Ventana Yocto Bootscript ${_bscriptver} ################"