Hello Stefan,
while debugging Omnia, when sending U-Boot over UART, some USB-TTY controllers are too slow and Omnia's MCU watchdog resets the board before U-Boot proper is sent.
This patch series changes Omnia board code so that when booting via UART, we disable MCU watchdog in SPL, prior loading U-Boot proper.
Changes since v1: - added patch that moves disabling MCU watchdog in normal boot from board_init() to board_late_init(), so that it is disabled after U-Boot enables the SOC watchdog
Marek
Marek Behún (4): arm: mvebu: Move get_boot_device() to cpu.c and make visible arm: mvebu: turris_omnia: don't guard by CONFIG_SPL_BUILD macro arm: mvebu: turris_omnia: disable MCU watchdog in SPL when booting over UART arm: mvebu: turris_omnia: disable MCU watchdog in board_late_init()
arch/arm/mach-mvebu/cpu.c | 60 ++++++++++++++++++ arch/arm/mach-mvebu/include/mach/cpu.h | 2 + arch/arm/mach-mvebu/spl.c | 77 +++--------------------- board/CZ.NIC/turris_omnia/turris_omnia.c | 27 ++++++--- configs/turris_omnia_defconfig | 1 + 5 files changed, 89 insertions(+), 78 deletions(-)