u-boot-brain/arch/x86
Bin Meng 49d5ff439c x86: Fix the mystery of printch() during 64-bit boot
At present in arch_setup_gd() it calls printch(' ') at the end which
has been a mystery for a long time as without such call the 64-bit
U-Boot just does not boot at all.

In fact this is due to the bug that board_init_f() was called with
boot_flags not being set. Hence whatever value being there in the
rdi register becomes the boot_flags if without such magic call.
With a printch(' ') call the rdi register is initialized as 0x20
and this value seems to be sane enough for the whole boot process.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2018-10-22 17:51:45 +08:00
..
cpu x86: Fix the mystery of printch() during 64-bit boot 2018-10-22 17:51:45 +08:00
dts x86: dts: edison: configure I2C#6 pins 2018-09-17 17:35:52 +08:00
include/asm x86: Update mtrr functions to allow leaving cache alone 2018-10-09 04:40:27 -06:00
lib x86: detect unsupported relocation types 2018-10-22 17:51:45 +08:00
config.mk x86: Ensure no instruction sets of MMX/SSE are generated in 64-bit build 2018-10-22 17:51:45 +08:00
Kconfig x86: efi: Refactor the directory of EFI app and payload support 2018-06-17 21:16:04 +08:00
Makefile SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00