Hi Bin,
On Tue, 19 Sept 2023 at 01:19, Bin Meng bmeng.cn@gmail.com wrote:
Hi Simon,
On Thu, Aug 24, 2023 at 5:11 AM Simon Glass sjg@chromium.org wrote:
The debug UART on modern machines uses a 32-bit wide transfer. Without this, setting debug output causes a hang or no output. It is not obvious (when enabling CONFIG_DEBUG_UART) that this is needed.
Enable 32-bit access to avoid this trap.
Signed-off-by: Simon Glass sjg@chromium.org
(no changes since v1)
configs/coreboot64_defconfig | 1 + configs/coreboot_defconfig | 1 + 2 files changed, 2 insertions(+)
Can we use CONFIG_NS16550_DYNAMIC?
We do actually use this for coreboot.
Hardcode CONFIG_SYS_NS16550_MEM32 in the defconfig just works for one configuration like yours, but it fails on some other configurations, e.g.: IO port based ns16550.
This is for the debug UART which does not support CONFIG_NS16550_DYNAMIC
Regards, Simon