The kernel generated by the configuration for the STM32f429-discovery
board is buggy:
Fixes:
Unhandled exception: IPSR = 00000006 LR = fffffff1
CPU: 0 PID: 1 Comm: init Not tainted 4.11.0 #2
Hardware name: STM32 (Device Tree Support)
task: 9041a000 task.stack: 907c0000
PC is at ret_fast_syscall+0x2/0x4a
LR is at tty_ioctl+0x1ad/0x75c
pc : [<0800d942>] lr : [<080c2e05>] psr: 4000000b
sp : 907c1fa8 ip : 0000001c fp : 905961a2
r10: 00000000 r9 : 907c0000 r8 : 0800dae0
r7 : 00000036 r6 : 905e7e60 r5 : 00000000 r4 : 905e7ebc
r3 : 00000000 r2 : 00000000 r1 : 00000000 r0 : 00000000
xPSR: 4000000b
CPU: 0 PID: 1 Comm: init Not tainted 4.11.0 #2
Hardware name: STM32 (Device Tree Support)
[<0800fbf9>] (unwind_backtrace) from [<0800f05b>] (show_stack+0xb/0xc)
[<0800f05b>] (show_stack) from [<0800f553>] (__invalid_entry+0x4b/0x4c)
Inspired by commit a3e3d9c198 ("configs/stm32f469_disco_xip_defconfig:
alternative defconfig for XIP"), update the stm32f429_disco_defconfig
configuration to use a newer kernel. Current setup kernel + rootfs fits
in 1.6MB on-chip flash memory.
The kernel has been moved to new flash bank due to growth of dtb size.
Remove upstream patch.
For better binary size optimization gcc LTO is turned on.
Signed-off-by: Dario Binacchi <dariobin@libero.it>
Acked-by: Christophe Priouzeau <christophe.priouzeau@foss.st.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
c85312affd