buildroot/configs/ci20_defconfig
Ezequiel Garcia e580fad559 configs/ci20: use upstream Linux and U-Boot
The vendor kernel we are currently selecting no longer builds,
and fails with a ton of:

                 from include/linux/list.h:8,
                 from include/linux/module.h:9,
                 from arch/mips/jz4740/prom.c:16:
include/linux/log2.h:22:1: error: ignoring attribute 'noreturn' because it conflicts with attribute 'const' [-Werror=a
ttributes]
   22 | int ____ilog2_NaN(void);
      | ^~~

We can't afford to fix that, so let's just move to upstream
kernel and bootloader. It doesn't make much sense to keep
using an unsupported kernel and bootloader at this point.

This means we will be missing some of the features supported
by the vendor (such as HDMI support), but it is what it is.

Linux v5.7 and v5.4 have been tested to boot fine, the latter
is picked for the defconfig as it is an LTS version.

Fixes:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/674933782

Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2020-08-12 11:37:46 +02:00

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# architecture
BR2_mipsel=y
BR2_mips_xburst=y
# BR2_MIPS_SOFT_FLOAT is not set
BR2_KERNEL_HEADERS_AS_KERNEL=y
BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_4=y
# system
BR2_TARGET_GENERIC_GETTY_PORT="ttyS4"
BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_4=y
BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/ci20/genimage.cfg"
# kernel
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_VERSION=y
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.4.58"
BR2_LINUX_KERNEL_DEFCONFIG="ci20"
BR2_LINUX_KERNEL_INSTALL_TARGET=y
# u-boot
BR2_TARGET_UBOOT=y
BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
BR2_TARGET_UBOOT_CUSTOM_VERSION=y
BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2020.07"
BR2_TARGET_UBOOT_BOARD_DEFCONFIG="ci20_mmc"
BR2_TARGET_UBOOT_FORMAT_IMG=y
BR2_TARGET_UBOOT_SPL=y
BR2_TARGET_UBOOT_SPL_NAME="spl/u-boot-spl.bin"
BR2_TARGET_UBOOT_ENVIMAGE=y
BR2_TARGET_UBOOT_ENVIMAGE_SOURCE="board/ci20/uboot-env.txt"
BR2_TARGET_UBOOT_ENVIMAGE_SIZE="32768"
# host
BR2_PACKAGE_HOST_GENIMAGE=y