The debug UART init should be done early in boot by the architecture. At present ARM leaves boards to fend for themselves, resulting in quite a bit of inconsistency.
This series attempts a small clean-up, so that enabling the debug UART should be just a matter of enabling the CONFIG options for most boards.
Simon Glass (4): arm: Fix some inconsistent debug-UART CONFIG options arm: Init the debug UART arm: qemu: Enable the debug UART rk3399: Don't enable the debug UART if there is no driver
arch/arm/lib/crt0.S | 4 +++ arch/arm/lib/crt0_64.S | 4 +++ arch/arm/mach-rockchip/rk3399/rk3399.c | 34 ++++++++++++++------------ configs/elgin-rv1108_defconfig | 1 + configs/evb-rk3128_defconfig | 1 + configs/evb-rv1108_defconfig | 1 + configs/pm9g45_defconfig | 1 - configs/qemu_arm64_defconfig | 5 ++++ configs/qemu_arm_defconfig | 5 ++++ configs/snow_defconfig | 1 + 10 files changed, 40 insertions(+), 17 deletions(-)