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DESCRIPTION = "2.6 Linux Development Kernel for Zaurus devices and iPAQ hx2750."
SECTION = "kernel"
MAINTAINER = "Richard Purdie <rpurdie@rpsys.net>, Michael 'Mickey' Lauer <mickey@vanille.de>"
LICENSE = "GPL"

DOSRC = "http://www.do13.in-berlin.de/openzaurus/patches"
RPSRC = "http://www.rpsys.net/openzaurus/patches"
JLSRC = "http://www.cs.wisc.edu/~lenz/zaurus/files"
BASRC = "http://www.orca.cx/zaurus/patches"

inherit kernel

##############################################################
# Compensate for sucky bootloader on all Sharp Zaurus models
#
FILES_kernel-image = ""
ALLOW_EMPTY = 1

EXTRA_OEMAKE = "OPENZAURUS_RELEASE=-${DISTRO_VERSION}"
COMPATIBLE_HOST = "arm.*-linux"

CMDLINE_CON = "console=ttyS0,115200n8 console=tty1 noinitrd"
CMDLINE_ROOT = "root=/dev/mtdblock2 rootfstype=jffs2 "
CMDLINE_ROOT_spitz = "root=/dev/hda1 rootfstype=ext3 rw "
CMDLINE_ROOT_borzoi = "root=/dev/hda1 rootfstype=ext3 rw "

##############################################################
# Configure memory/ramdisk split for collie
#
export mem = ${@bb.data.getVar("COLLIE_MEMORY_SIZE",d,1) or "32"}
export rd  = ${@bb.data.getVar("COLLIE_RAMDISK_SIZE",d,1) or "32"}

CMDLINE_MEM_collie = "mem=${mem}M"
CMDLINE_ROTATE_spitz = "fbcon=rotate:1"
CMDLINE_ROTATE_akita = "fbcon=rotate:1"
CMDLINE_ROTATE_borzoi = "fbcon=rotate:1"
CMDLINE = "${CMDLINE_CON} ${CMDLINE_ROOT} ${CMDLINE_MEM} ${CMDLINE_ROTATE} debug"

###############################################################
# Enable or disable ELPP via local.conf - default is "no"
#
ENABLE_ELPP = ${@bb.data.getVar("OZ_KERNEL_ENABLE_ELPP",d,1) or "no"}

###############################################################
# module configs specific to this kernel
#
module_autoload_pxaficp_ir = "pxaficp_ir"

do_configure() {

	case ${MACHINE} in
		akita | spitz | borzoi )
			install -m 0644 ${WORKDIR}/defconfig-cxx00 ${S}/.config || die "No default configuration for cxx00 available."
			;;
        	*)
			install -m 0644 ${WORKDIR}/defconfig-${MACHINE} ${S}/.config || die "No default configuration for ${MACHINE} available."
			;;
	esac

	if [ "${MACHINE}" == "collie" ]; then
		mempos=`echo "obase=16; $mem * 1024 * 1024" | bc`
		rdsize=`echo "$rd * 1024" | bc`
		total=`expr $mem + $rd`
		addr=`echo "obase=16; ibase=16; C0000000 + $mempos" | bc`
	 	if [ "$rd" == "0" ]
	 	then
		    echo "No RAMDISK"
			echo "# CONFIG_MTD_MTDRAM_SA1100 is not set" >> ${S}/.config
		else
		    echo "RAMDIR = $rdsize on $addr"
			echo "CONFIG_MTD_MTDRAM_SA1100=y"           >> ${S}/.config
			echo "CONFIG_MTDRAM_TOTAL_SIZE=$rdsize"     >> ${S}/.config
			echo "CONFIG_MTDRAM_ERASE_SIZE=1"           >> ${S}/.config
			echo "CONFIG_MTDRAM_ABS_POS=$addr"          >> ${S}/.config
		fi
	fi

	echo "CONFIG_CMDLINE=\"${CMDLINE}\"" >> ${S}/.config

	if [ "${ENABLE_ELPP}" == "yes" ]; then
                echo "# Enhanced Linux Progress Patch"  >> ${S}/.config
                echo "CONFIG_FB_ELPP=y"                 >> ${S}/.config
                echo "CONFIG_LOGO=y"                    >> ${S}/.config
                echo "CONFIG_LOGO_LINUX_CLUT224=y"      >> ${S}/.config
	else
		echo "# CONFIG_FB_ELPP is not set"	>> ${S}/.config
	fi

	yes '' | oe_runmake oldconfig
}

# Check the kernel is below the 1272*1024 byte limit for the PXA Zaurii
do_compile_append() {
	case ${MACHINE} in
		c7x0 | akita | poodle | spitz | borzoi | tosa )
			size=`ls arch/${ARCH}/boot/${KERNEL_IMAGETYPE} -s | cut -d ' ' -f 1`
			if [ $size -ge 1271 ]; then	
				rm arch/${ARCH}/boot/${KERNEL_IMAGETYPE}
				die "This kernel is too big for your PXA Zaurus and will destroy data if you flash it. Please reduce the size of the kernel by making more of it modular."
			fi
			;;
        	*)
			;;
	esac
}

do_deploy() {
        install -d ${DEPLOY_DIR}/images
        install -m 0644 arch/${ARCH}/boot/${KERNEL_IMAGETYPE} ${DEPLOY_DIR}/images/${KERNEL_IMAGETYPE}-${PV}-${MACHINE}-${DATETIME}.bin
}

do_deploy[dirs] = "${S}"

addtask deploy before do_build after do_compile