kumquat-buildroot/board/boundarydevices/nitrogen6x/6x_bootscript.txt

setenv bootargs ''

if ${fs}load ${dtype} ${disk}:1 10800000 uEnv.txt ; then
    env import -t 10800000 $filesize
fi

if itest.s "x" == "x$dtbname" ; then
	dtbname="imx6";
	if itest.s x6SOLO == "x$cpu" ; then
		dtbname=${dtbname}dl-;
	elif itest.s x6DL == "x$cpu" ; then
		dtbname=${dtbname}dl-;
	else
		dtbname=${dtbname}q-;
	fi
	if itest.s x == "x$board" ; then
		board=sabrelite
	fi
	dtbname=${dtbname}${board}.dtb;
fi

if itest.s x == x${bootdir} ; then
	bootdir=/boot/
fi

setenv fdt_addr 0x12000000
if ${fs}load ${dtype} ${disk}:1 $fdt_addr ${bootdir}$dtbname ; then
	fdt addr $fdt_addr
	setenv fdt_high 0xffffffff
else
	echo "!!!! Error loading ${bootdir}$dtbname";
	exit;
fi

# ------------------- HDMI detection
i2c dev 1 ;
if i2c probe 0x50 ; then
	echo "------ have HDMI monitor";
	if itest.s x == x$allow_noncea ; then
		setenv bootargs $bootargs mxc_hdmi.only_cea=1;
		echo "only CEA modes allowed on HDMI port";
	else
		setenv bootargs $bootargs mxc_hdmi.only_cea=0;
		echo "non-CEA modes allowed on HDMI, audio may be affected";
	fi
else
	fdt rm hdmi_display
	echo "------ no HDMI monitor";
fi

# ------------------- LVDS detection
if itest.s "x" != "x$lvds_1080p" ; then
	echo "----- 1080P dual channel LVDS";
	fdt rm okaya1024x600
	fdt rm lg1280x800
	fdt rm hannstar;
	fdt set ldb split-mode 1
	fdt set lvds_display interface_pix_fmt "RGB24"
	fdt set ldb/lvds-channel@0 fsl,data-width <24>
else
	fdt rm ldb split-mode
	fdt rm lvds1080p

	# -------- LVDS0 (bottom on Nitrogen6_Max)
	setenv have_lvds
	i2c dev 2
	if i2c probe 0x04 ; then
		echo "------ have Freescale display";
		setenv have_lvds 1
	else
		echo "------ no Freescale display";
		fdt rm hannstar;
	fi

	if i2c probe 0x38 ; then
		if itest.s "xLDB-WXGA" == "x$panel"; then
			screenres=1280,800
			fdt rm okaya1024x600
		else
			screenres=1024,600
			fdt rm lg1280x800
		fi
		setenv have_lvds 1
		setenv bootargs $bootargs ft5x06_ts.screenres=$screenres
		if itest.s "x" -ne "x$calibration" ; then
			setenv bootargs $bootargs ft5x06_ts.calibration=$calibration
		fi
	else
		echo "------ no ft5x06 touch controller";
		fdt rm okaya1024x600
		fdt rm lg1280x800
	fi

	if itest.s "x" == "x$have_lvds"; then
		fdt rm lvds_display;
	fi

	# -------- LVDS1 (top on Nitrogen6_Max)
	if itest.s "xhannstar" == "x$lvds1_panel" ; then
		echo "configure LVDS1 for Hannstar panel"
		fdt rm okaya1024x600_2;
		fdt rm lg1280x800_2;
		fdt set lvds_display_2 status okay
	elif itest.s "xokaya1024x600" == "x$lvds1_panel" ; then
		echo "configure LVDS1 for 1024x600 panel"
		fdt rm hannstar_2;
		fdt rm lg1280x800_2;
		fdt set lvds_display_2 status okay
	elif itest.s "xlg1280x800" == "x$lvds1_panel" ; then
		echo "configure LVDS1 for 1280x800 panel"
		fdt rm hannstar_2;
		fdt rm okaya1024x600_2;
		fdt set lvds_display_2 status okay
	else
		fdt rm lvds_display_2 ; # ignore errors on boards != 6_max
	fi
fi

# ------------------- LCD detection
setenv have_lcd '';
if i2c probe 0x48 ; then
	setenv have_lcd 1;
	echo "------- found TSC2004 touch controller";
	if itest.s "x" -eq "x$tsc_calibration" ; then
		setenv bootargs $bootargs tsc2004.calibration=-67247,-764,272499173,324,69283,-8653010,65536
	else
		setenv bootargs $bootargs tsc2004.calibration=$tsc_calibration
	fi
elif i2c probe 0x4d ; then
	setenv have_lcd 1;
	echo "------- found AR1020 touch controller";
fi

if itest.s "x" != "x$ignore_lcd" ; then
	echo "------ ignoring LCD display";
	setenv have_lcd '';
fi

if itest.s "x" != "x$have_lcd" ; then
	echo "----- found LCD display";
else
	fdt rm lcd_display;
fi

setenv bootargs "$bootargs console=ttymxc1,115200 vmalloc=400M consoleblank=0 rootwait"

if itest.s x$bootpart == x ; then
	bootpart=1
fi

if test "sata" = "${dtype}" ; then
	setenv bootargs "$bootargs root=/dev/sda$bootpart" ;
else
        if test "usb" = "${dtype}" ; then
                setenv bootargs "$bootargs root=/dev/sda$bootpart" ;
        elif itest 0 -eq ${disk}; then
                setenv bootargs "$bootargs root=/dev/mmcblk2p$bootpart" ;
        else
                setenv bootargs "$bootargs root=/dev/mmcblk3p$bootpart" ;
        fi
fi

if itest.s "x" != "x${disable_giga}" ; then
	setenv bootargs $bootargs fec.disable_giga=1
fi

if itest.s "x" != "x$wlmac" ; then
	setenv bootargs $bootargs wlcore.mac=$wlmac
fi

if itest.s "x" != "x$gpumem" ; then
	setenv bootargs $bootargs galcore.contiguousSize=$gpumem
fi

if itest.s "x" != "x$show_fdt" ; then
	fdt print /
fi

if itest.s "x" != "x$show_env" ; then
	printenv
fi

if ${fs}load ${dtype} ${disk}:1 10800000 ${bootdir}uImage ; then
	bootm 10800000 - $fdt_addr
fi
echo "Error loading kernel image"