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- Remove outdated path which doesn't affect normal operation mode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>
As described by [1], the kernel generated by the configuration for the
STM32f469 Discovery board is buggy. Using a newer kernel, as suggested
by [1], increases the dtb and Kernel image size. In particular, the
5.12 version of the kernel generates a dtb and a kernel image whose sum
exceeds the 2 MByte of the flash module.
So I decided to replace the afboot-stm32 bootloader in the flash with
U-boot to easily boot the system from sdcard without having to worry
about the size of dtb, kernel and rootfs generated by the configuration.
This solution allows you to fix the kernel boot issue and makes it
possible to use its future versions.
[1] http://buildroot-busybox.2317881.n4.nabble.com/Bug-11746-New-stm32f469-didn-t-work-correctly-td219644.html
Signed-off-by: Dario Binacchi <dariobin@libero.it>
Acked-by: Christophe Priouzeau <christophe.priouzeau@foss.st.com>
Tested-by: Christophe Priouzeau <christophe.priouzeau@foss.st.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Arnout:
- specify headers version explicitly, even though it's default;
- bump kernel to 5.12.11]
Use kernel 4.11 for stm32f4 discovery board
(stm32f429i-disco and stm32f469i-disco).
Signed-off-by: Christophe Priouzeau <christophe.priouzeau@st.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Since the bump of OpenOCD from 0.9.0 to 0.10.0 in commit
3b6c74d708, stm32f469_disco_defconfig
fails to build:
- 0001-add-config.patch was merged in upstream OpenOCD (commit
26045588f462476cee356d15a24944d6c26befb4).
- 0002-flash-nor.patch was merged in upstream OpenOCD (commit
3e219648c80a27f0519003f3b088cbb846e255d8)
Therefore, this commit removes the two patches that are no longer
necessary.
Fixes:
https://gitlab.com/buildroot.org/buildroot/builds/15762279
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Similar to stm32f429_disco, this commit adds a configuration for the
Cortex-M4 based STM32F469 platform.
It requires a few kernel patches, which have already been submitted
upstream, as well as a small OpenOCD patch. Besides that, it re-uses
most of what has been added for the STM32F429 platform.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
[Thomas:
- squash multiple patches from Lee Jones into one
- improve the readme.txt file
- sync the defconfig with the adaptations made to the stm32f429
configuration.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
