#!/bin/bash

CORES=$(getconf _NPROCESSORS_ONLN)
wdir=`pwd`
CC=${CC:-"${wdir}/riscv-toolchain/bin/riscv64-linux-"}

cd ./linux/

if [ ! -f ./.patched ] ; then
	if [ -f arch/riscv/configs/mpfs_defconfig ] ; then
		patch -p1 < ../patches/linux/0001-Add-BeagleV-Fire-device-tree.patch
		patch -p1 < ../patches/linux/0001-PCIe-Change-controller-and-bridge-base-address.patch
		patch -p1 < ../patches/linux/0001-GPIO-Add-Microchip-CoreGPIO-driver.patch
		patch -p1 < ../patches/linux/0001-ADC-Add-Microchip-MCP356X-driver.patch
		patch -p1 < ../patches/linux/0001-Microchip-QSPI-Add-regular-transfers.patch
		patch -p1 < ../patches/linux/0001-BeagleV-Fire-Add-printk-to-IM219-driver-for-board-te.patch
		patch -p1 < ../patches/linux/0001-MMC-SPI-Hack-to-support-non-DMA-capable-SPI-ctrl.patch
	fi
	touch .patched
fi

if [ -f arch/riscv/configs/mpfs_defconfig ] ; then
	cp -v ../patches/linux/Makefile arch/riscv/boot/dts/microchip/Makefile
	cp -v ../patches/linux/dts/mpfs-beaglev-fire.dts arch/riscv/boot/dts/microchip/
	cp -v ../patches/linux/dts/mpfs-beaglev-fire-fabric.dtsi arch/riscv/boot/dts/microchip/
else
	cp -v ../patches/linux/mainline/Makefile arch/riscv/boot/dts/microchip/Makefile
	cp -v ../patches/linux/mainline/dts/mpfs-beaglev-fire.dts arch/riscv/boot/dts/microchip/
	cp -v ../patches/linux/mainline/dts/mpfs-beaglev-fire-fabric.dtsi arch/riscv/boot/dts/microchip/
fi

echo "make ARCH=riscv CROSS_COMPILE=${CC} clean"
make ARCH=riscv CROSS_COMPILE=${CC} clean

if [ -f arch/riscv/configs/mpfs_defconfig ] ; then
	echo "make ARCH=riscv CROSS_COMPILE=${CC} mpfs_defconfig"
	make ARCH=riscv CROSS_COMPILE=${CC} mpfs_defconfig

	#
	# Scheduler features
	#
	# end of Scheduler features

	./scripts/config --enable CONFIG_MEMCG
	./scripts/config --enable CONFIG_MEMCG_KMEM
	./scripts/config --enable CONFIG_RT_GROUP_SCHED
	./scripts/config --enable CONFIG_SCHED_MM_CID
	./scripts/config --enable CONFIG_CGROUP_PIDS
	./scripts/config --enable CONFIG_CGROUP_FREEZER
	./scripts/config --enable CONFIG_CGROUP_HUGETLB
	./scripts/config --enable CONFIG_CPUSETS
	./scripts/config --enable CONFIG_PROC_PID_CPUSET
	./scripts/config --enable CONFIG_CGROUP_DEVICE
	./scripts/config --enable CONFIG_CGROUP_CPUACCT
	./scripts/config --enable CONFIG_CGROUP_PERF
	./scripts/config --enable CONFIG_NAMESPACES
	./scripts/config --enable CONFIG_UTS_NS
	./scripts/config --enable CONFIG_TIME_NS
	./scripts/config --enable CONFIG_IPC_NS
	./scripts/config --enable CONFIG_USER_NS
	./scripts/config --enable CONFIG_PID_NS
	./scripts/config --enable CONFIG_NET_NS
	./scripts/config --enable CONFIG_CHECKPOINT_RESTORE

	./scripts/config --set-str CONFIG_CMDLINE ""
	./scripts/config --disable CONFIG_CMDLINE_FALLBACK
	./scripts/config --enable CONFIG_EEPROM_AT24
	./scripts/config --enable CONFIG_OF_OVERLAY
	./scripts/config --enable CONFIG_GPIO_MICROCHIP_CORE
	./scripts/config --enable CONFIG_MCP356X
	./scripts/config --enable CONFIG_POLARFIRE_SOC_GENERIC_SERVICE

	#
	# Networking options
	#
	./scripts/config --disable CONFIG_NETLABEL

	#
	# File systems
	#
	./scripts/config --enable CONFIG_EXT4_FS_SECURITY
	./scripts/config --disable CONFIG_FANOTIFY
	./scripts/config --enable CONFIG_AUTOFS_FS

	#
	# DOS/FAT/EXFAT/NT Filesystems
	#
	./scripts/config --enable CONFIG_FAT_FS
	./scripts/config --enable CONFIG_MSDOS_FS
	./scripts/config --enable CONFIG_VFAT_FS

	#
	# Pseudo filesystems
	#
	./scripts/config --enable CONFIG_PROC_CHILDREN
	./scripts/config --enable CONFIG_HUGETLBFS
	./scripts/config --enable CONFIG_NLS_CODEPAGE_437

	#
	# Security options
	#
	./scripts/config --enable CONFIG_SECURITY
	./scripts/config --enable CONFIG_SECURITYFS
	./scripts/config --enable CONFIG_SECURITY_NETWORK
	./scripts/config --enable CONFIG_SECURITY_PATH
	./scripts/config --set-val CONFIG_LSM_MMAP_MIN_ADDR 65536

	./scripts/config --disable CONFIG_SECURITY_SELINUX
	./scripts/config --disable CONFIG_SECURITY_SMACK
	./scripts/config --disable CONFIG_SECURITY_TOMOYO
	./scripts/config --disable CONFIG_SECURITY_APPARMOR
	./scripts/config --disable CONFIG_SECURITY_LOADPIN
	./scripts/config --disable CONFIG_SECURITY_YAMA
	./scripts/config --disable CONFIG_SECURITY_SAFESETID
	./scripts/config --disable CONFIG_SECURITY_LOCKDOWN_LSM
	./scripts/config --disable CONFIG_SECURITY_LANDLOCK

	./scripts/config --enable CONFIG_INTEGRITY
	./scripts/config --disable CONFIG_INTEGRITY_SIGNATURE

	./scripts/config --disable CONFIG_IMA
	./scripts/config --disable CONFIG_EVM

	#./scripts/config --disable CONFIG_VMAP_STACK
	#./scripts/config --disable CONFIG_SMP

	#Optimize:
	./scripts/config --enable CONFIG_IP_NF_IPTABLES
	./scripts/config --enable CONFIG_NETFILTER_XTABLES
	./scripts/config --enable CONFIG_NLS_ISO8859_1
	./scripts/config --enable CONFIG_BLK_DEV_DM

	echo "make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} olddefconfig"
	make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} olddefconfig
else
	echo "make ARCH=riscv CROSS_COMPILE=${CC} defconfig"
	make ARCH=riscv CROSS_COMPILE=${CC} defconfig

	./scripts/config --enable CONFIG_PCIE_MICROCHIP_HOST

	./scripts/config --enable CONFIG_OF_OVERLAY

	./scripts/config --enable CONFIG_I2C
	./scripts/config --enable CONFIG_EEPROM_AT24
	./scripts/config --enable CONFIG_I2C_MICROCHIP_CORE

	./scripts/config --enable CONFIG_SPI_MICROCHIP_CORE
	./scripts/config --enable CONFIG_SPI_MICROCHIP_CORE_QSPI
	./scripts/config --module CONFIG_SPI_SPIDEV

	./scripts/config --enable CONFIG_GPIO_SYSFS

	./scripts/config --enable CONFIG_HW_RANDOM_POLARFIRE_SOC

	./scripts/config --enable CONFIG_USB_MUSB_HDRC
	./scripts/config --enable CONFIG_NOP_USB_XCEIV
	./scripts/config --enable CONFIG_USB_MUSB_POLARFIRE_SOC
	./scripts/config --enable CONFIG_USB_MUSB_DUAL_ROLE

	./scripts/config --enable CONFIG_MAILBOX
	./scripts/config --enable CONFIG_POLARFIRE_SOC_MAILBOX
	./scripts/config --disable CONFIG_SUN6I_MSGBOX

	./scripts/config --enable CONFIG_REMOTEPROC
	./scripts/config --enable CONFIG_REMOTEPROC_CDEV

	./scripts/config --enable CONFIG_POLARFIRE_SOC_SYS_CTRL

	./scripts/config --enable CONFIG_USB_GADGET
	./scripts/config --enable CONFIG_USB_CONFIGFS
	./scripts/config --enable CONFIG_CONFIGFS_FS
	./scripts/config --enable CONFIG_USB_CONFIGFS_SERIAL
	./scripts/config --enable CONFIG_USB_CONFIGFS_ACM
	./scripts/config --enable CONFIG_USB_CONFIGFS_OBEX
	./scripts/config --enable CONFIG_USB_CONFIGFS_NCM
	./scripts/config --enable CONFIG_USB_CONFIGFS_ECM
	./scripts/config --enable CONFIG_USB_CONFIGFS_ECM_SUBSET
	./scripts/config --enable CONFIG_USB_CONFIGFS_RNDIS
	./scripts/config --enable CONFIG_USB_CONFIGFS_EEM
	./scripts/config --enable CONFIG_USB_CONFIGFS_PHONET
	./scripts/config --enable CONFIG_USB_CONFIGFS_MASS_STORAGE
	./scripts/config --enable CONFIG_USB_CONFIGFS_F_LB_SS
	./scripts/config --enable CONFIG_USB_CONFIGFS_F_FS
	./scripts/config --enable CONFIG_USB_CONFIGFS_F_UAC1
	./scripts/config --enable CONFIG_USB_CONFIGFS_F_UAC2
	./scripts/config --enable CONFIG_USB_CONFIGFS_F_MIDI
	./scripts/config --enable CONFIG_USB_CONFIGFS_F_HID
	./scripts/config --enable CONFIG_USB_CONFIGFS_F_UVC
	./scripts/config --enable CONFIG_USB_CONFIGFS_F_PRINTER

	#Cleanup large DRM...
	./scripts/config --disable CONFIG_DRM
	./scripts/config --disable CONFIG_DRM_RADEON
	./scripts/config --disable CONFIG_DRM_NOUVEAU
	./scripts/config --disable CONFIG_DRM_SUN4I

	#Optimize:
	./scripts/config --enable CONFIG_IP_NF_IPTABLES
	./scripts/config --enable CONFIG_NETFILTER_XTABLES
	./scripts/config --enable CONFIG_NLS_ISO8859_1
	./scripts/config --enable CONFIG_BLK_DEV_DM

	echo "make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} olddefconfig"
	make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} olddefconfig
fi

echo "make ARCH=riscv CROSS_COMPILE=${CC} menuconfig"
make ARCH=riscv CROSS_COMPILE=${CC} menuconfig

echo "make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} Image modules dtbs"
make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} Image modules dtbs

KERNEL_UTS=$(cat "${wdir}/linux/include/generated/utsrelease.h" | awk '{print $3}' | sed 's/\"//g' )

if [ -d "${wdir}/deploy/tmp/" ] ; then
	rm -rf "${wdir}/deploy/tmp/"
fi
mkdir -p "${wdir}/deploy/tmp/"

make -s ARCH=riscv CROSS_COMPILE=${CC} modules_install INSTALL_MOD_PATH="${wdir}/deploy/tmp"

if [ -f "${wdir}/deploy/${KERNEL_UTS}-modules.tar.gz" ] ; then
	rm -rf "${wdir}/deploy/${KERNEL_UTS}-modules.tar.gz" || true
fi
echo "Compressing ${KERNEL_UTS}-modules.tar.gz..."
echo "${KERNEL_UTS}" > "${wdir}/deploy/.modules"
cd "${wdir}/deploy/tmp" || true
tar --create --gzip --file "../${KERNEL_UTS}-modules.tar.gz" ./*
cd "${wdir}/linux/" || exit
rm -rf "${wdir}/deploy/tmp" || true

if [ -f arch/riscv/configs/mpfs_defconfig ] ; then
	cp -v ./.config ../patches/linux/mpfs_defconfig
	cp -v ./arch/riscv/boot/dts/microchip/mpfs-beaglev-fire.dts ../patches/linux/dts/mpfs-beaglev-fire.dts
	cp -v ./arch/riscv/boot/dts/microchip/mpfs-beaglev-fire-fabric.dtsi ../patches/linux/dts/mpfs-beaglev-fire-fabric.dtsi
else
	cp -v ./.config ../patches/linux/mainline/defconfig
	cp -v ./arch/riscv/boot/dts/microchip/mpfs-beaglev-fire.dts ../patches/linux/mainline/dts/mpfs-beaglev-fire.dts
	cp -v ./arch/riscv/boot/dts/microchip/mpfs-beaglev-fire-fabric.dtsi ../patches/linux/mainline/dts/mpfs-beaglev-fire-fabric.dtsi
fi
if [ ! -d ../deploy/input/ ] ; then
	mkdir -p ../deploy/input/ || true
fi
cp -v ./arch/riscv/boot/Image ../deploy/input/
cp -v ./arch/riscv/boot/dts/microchip/mpfs-beaglev-fire.dtb ../deploy/input/

cd ../

#