buildroot/configs/stm32f469_disco_xip_defconfig
Yauheni Saldatsenka a3e3d9c198 configs/stm32f469_disco_xip_defconfig: alternative defconfig for XIP
Update STM32F469-disco configuration files to operate with new kernel.

Result of make tinyconfig was taken as a starting point to fit kernel
into flash memory.
Current setup kernel + rootfs fits in 1.6MB on-chip flash memory

Fixes:
    - Move kernel to new flash bank due to growth of dtb size
    - Fix kernel start address in bootloader
    - Remove outdated path which doesn't affect normal operation mode

For better binary size optimization gcc LTO is turned on.

Signed-off-by: Yauheni Saldatsenka <eugentoo@gmail.com>
[Arnout:
 - squash 3 patches into 1;
 - remove unused dts file;
 - move linux/linux.config to linux-xip.config;
 - add a sentence to readme to say SD card is not needed.
]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2021-08-28 16:58:21 +02:00

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BR2_arm=y
BR2_cortex_m4=y
BR2_GLOBAL_PATCH_DIR="board/stmicroelectronics/stm32f469-disco/patches"
# BR2_UCLIBC_INSTALL_UTILS is not set
BR2_GCC_ENABLE_LTO=y
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/stmicroelectronics/stm32f469-disco/linux-xip.config"
BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y
BR2_LINUX_KERNEL_XZ=y
BR2_LINUX_KERNEL_IMAGE_TARGET_NAME="xipImage"
BR2_LINUX_KERNEL_DTS_SUPPORT=y
BR2_LINUX_KERNEL_INTREE_DTS_NAME="stm32f469-disco"
BR2_PACKAGE_BUSYBOX_CONFIG="package/busybox/busybox-minimal.config"
BR2_TARGET_ROOTFS_INITRAMFS=y
# BR2_TARGET_ROOTFS_TAR is not set
BR2_TARGET_AFBOOT_STM32=y
BR2_PACKAGE_HOST_OPENOCD=y