1_compile.sh

#!/usr/bin/sh

set -e
# set -x

. ./consts.sh

clean_dir() {
    _DIR=${1}

    # kind of dangerous ...
    [ "${_DIR}" = '/' ] && exit 1
    rm -rf "${_DIR}" || true
}

pin_commit() {
    _COMMIT=${1}
    _COMMIT_IS=$(git rev-parse HEAD)
    [ "${IGNORE_COMMITS}" != '0' ] || [ "${_COMMIT}" = "${_COMMIT_IS}" ] || (
        echo "Commit mismatch"
        exit 1
    )
}

patch_config() {
    key="$1"
    val="$2"

    if [ -z "$key" ] || [ -z "$val" ]; then
        exit 1
    fi

    echo "CONFIG_${key}=${val}" >>linux-build/.config
}

mkdir -p build
mkdir -p "${OUT_DIR}"
cd build

if [ ! -f "${OUT_DIR}/fw_dynamic.bin" ]; then
    # build OpenSBI
    DIR='opensbi'
    clean_dir ${DIR}

    git clone --depth 1 "${SOURCE_OPENSBI}" -b d1-wip
    cd ${DIR}
    make CROSS_COMPILE="${CROSS_COMPILE}" PLATFORM=generic FW_PIC=y FW_OPTIONS=0x2
    cd ..
    cp ${DIR}/build/platform/generic/firmware/fw_dynamic.bin "${OUT_DIR}"
fi

if [ ! -f "${OUT_DIR}/u-boot-sunxi-with-spl.bin" ]; then
    # build U-Boot
    DIR='u-boot'
    clean_dir ${DIR}

    git clone --depth 1 "${SOURCE_UBOOT}" -b "${TAG_UBOOT}"
    cd ${DIR}
    pin_commit "${COMMIT_UBOOT}"

    make CROSS_COMPILE="${CROSS_COMPILE}" ARCH="${ARCH}" nezha_defconfig
    make CROSS_COMPILE="${CROSS_COMPILE}" ARCH="${ARCH}" OPENSBI="${OUT_DIR}/fw_dynamic.bin" -j "${NPROC}"
    cd ..
    cp ${DIR}/u-boot-sunxi-with-spl.bin "${OUT_DIR}"
fi

if [ ! -f "${OUT_DIR}/Image" ] || [ ! -f "${OUT_DIR}/Image.gz" ]; then
    # TODO use generic riscv kernel

    # build kernel
    DIR='linux'
    clean_dir ${DIR}
    clean_dir ${DIR}-build

    # try not to clone complete linux source tree here!
    git clone --depth 1 "${SOURCE_KERNEL}" -b "${TAG_KERNEL}"
    cd ${DIR}
    pin_commit "${COMMIT_KERNEL}"
    # fix kernel version
    touch .scmversion
    cd ..

    # LicheeRV defconfig
    # mkdir -p linux-build/arch/riscv/configs
    # cp ../licheerv_linux_defconfig linux-build/arch/riscv/configs/licheerv_defconfig
    # make ARCH=${ARCH} -C linux O=../linux-build licheerv_defconfig

    case "$KERNEL" in
    'nezha_defconfig')
        # Nezha defconfig
        echo "CONFIG_LOCALVERSION_AUTO=n" >>${DIR}/arch/riscv/configs/defconfig
        # enable WiFi
        echo 'CONFIG_WIRELESS=y' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_CFG80211=m' >>${DIR}/arch/riscv/configs/defconfig
        # enable /proc/config.gz
        echo 'CONFIG_IKCONFIG=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_IKCONFIG_PROC=y' >>${DIR}/arch/riscv/configs/defconfig
        # There is no LAN. so let there be USB-LAN
        echo 'CONFIG_USB_NET_DRIVERS=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_CATC=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_KAWETH=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_PEGASUS=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_RTL8150=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_RTL8152=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_LAN78XX=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_USBNET=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_AX8817X=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_AX88179_178A=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_CDCETHER=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_CDC_EEM=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_CDC_NCM=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_HUAWEI_CDC_NCM=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_CDC_MBIM=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_DM9601=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_SR9700=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_SR9800=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_SMSC75XX=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_SMSC95XX=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_GL620A=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_NET1080=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_PLUSB=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_MCS7830=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_RNDIS_HOST=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_CDC_SUBSET_ENABLE=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_CDC_SUBSET=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_ALI_M5632=y' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_AN2720=y' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_BELKIN=y' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_ARMLINUX=y' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_EPSON2888=y' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_KC2190=y' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_ZAURUS=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_CX82310_ETH=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_KALMIA=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_QMI_WWAN=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_INT51X1=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_IPHETH=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_SIERRA_NET=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_VL600=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_CH9200=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_NET_AQC111=m' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_USB_RTL8153_ECM=m' >>${DIR}/arch/riscv/configs/defconfig
        # enable systemV IPC (needed by fakeroot during makepkg)
        echo 'CONFIG_SYSVIPC=y' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_SYSVIPC_SYSCTL=y' >>${DIR}/arch/riscv/configs/defconfig
        # enable swap
        echo 'CONFIG_SWAP=y' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_ZSWAP=y' >>${DIR}/arch/riscv/configs/defconfig
        #enable Cedrus VPU Drivers
        echo 'CONFIG_MEDIA_SUPPORT=y' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_MEDIA_CONTROLLER=y' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_MEDIA_CONTROLLER_REQUEST_API=y' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_V4L_MEM2MEM_DRIVERS=y' >>${DIR}/arch/riscv/configs/defconfig
        echo 'CONFIG_VIDEO_SUNXI_CEDRUS=y' >>${DIR}/arch/riscv/configs/defconfig
        # enable binfmt_misc
        echo 'CONFIG_BINFMT_MISC=y' >>${DIR}/arch/riscv/configs/defconfig
        # debug options
        if [ $DEBUG = 'y' ]; then
            echo 'CONFIG_DEBUG_INFO=y' >>${DIR}/arch/riscv/configs/defconfig
        fi

        make ARCH="${ARCH}" -C linux O=../linux-build defconfig
        ;;


    'arch')
        # https://archriscv.felixc.at/repo/core/linux-5.17.3.arch1-1-riscv64.pkg.tar.zst
        # setup linux-build
        make ARCH="${ARCH}" -C linux O=../linux-build nezha_defconfig
        # deploy config
        cp ../../linux-5.17.3.arch1-1-riscv64.config linux-build/.config
        # apply defaults
        make CROSS_COMPILE="${CROSS_COMPILE}" ARCH="${ARCH}" -j "${NPROC}" -C linux-build olddefconfig

        # patch config
        patch_config ARCH_FLATMEM_ENABLE y
        patch_config RISCV_DMA_NONCOHERENT y
        patch_config RISCV_SBI_V01 y
        patch_config HVC_RISCV_SBI y
        patch_config SERIAL_EARLYCON_RISCV_SBI y
        patch_config BROKEN_ON_SMP y

        patch_config ARCH_SUNXI y
        patch_config ERRATA_THEAD y

        patch_config DRM_SUN4I m
        patch_config DRM_SUN6I_DSI m
        patch_config DRM_SUN8I_DW_HDMI m
        patch_config DRM_SUN8I_MIXER m
        patch_config DRM_SUN4I_HDMI n
        patch_config DRM_SUN4I_BACKEND n

        patch_config CRYPTO_DEV_SUN8I_CE y
        patch_config CRYPTO_DEV_SUN8I_CE_HASH y
        patch_config CRYPTO_DEV_SUN8I_CE_PRNG y
        patch_config CRYPTO_DEV_SUN8I_CE_TRNG y

        patch_config SPI_SUN6I m
        patch_config PHY_SUN4I_USB m

        patch_config SUN50I_IOMMU y
        patch_config SUN8I_DE2_CCU y
        patch_config SUN8I_DSP_REMOTEPROC y
        patch_config SUN8I_THERMAL y
        patch_config SUNXI_WATCHDOG y

        patch_config GPIO_SYSFS y
        # patch_config EXPORT y
        # patch_config VMLINUX_MAP y

        # these needs to be built-in (probably)
        patch_config EXT4_FS y
        patch_config MMC y
        patch_config MMC_SUNXI y

        # apply defaults
        make CROSS_COMPILE="${CROSS_COMPILE}" ARCH="${ARCH}" -j "${NPROC}" -C linux-build olddefconfig
        ;;

    *)
        echo "Unknown kernel option '$KERNEL'"
        exit 1
        ;;
    esac

    # compile it!
    make CROSS_COMPILE="${CROSS_COMPILE}" ARCH="${ARCH}" -j "${NPROC}" -C linux-build
    cp linux-build/arch/riscv/boot/Image.gz "${OUT_DIR}"
    cp linux-build/arch/riscv/boot/Image "${OUT_DIR}"
fi

if [ ! -f "${OUT_DIR}/8723ds.ko" ]; then
    # build WiFi driver
    DIR='rtl8723ds'
    clean_dir ${DIR}

    git clone "${SOURCE_RTL8723}"
    cd ${DIR}
    make CROSS_COMPILE="${CROSS_COMPILE}" ARCH="${ARCH}" KSRC=../linux-build -j "${NPROC}" modules || true
    cd ..
    cp ${DIR}/8723ds.ko "${OUT_DIR}"
fi