Re: [PATCH v2 2/9] MIPS: debug: Implement low-level debugging functions

[Philippe Mathieu-Daudé]

On 26/3/24 21:35, Jiaxun Yang wrote:
> Currently we have three sets of early debugging functions
> for MIPS: zboot putc/puts, cps-vec-ns16550, and prom_putc.
>
> This is a attempt to bring them all to one by providing
> a interface similar to arm's debug_ll, which is very portable
> and allows you to support new platforms easily.
>
> Two examples of output interfaces are provided, including
> 8250 uart and MIPS UHI semihosting, which already covered
> most of the platforms.
>
> Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
> ---
>   arch/mips/Kconfig.debug        |  80 +++++++++++++++++++++++++
>   arch/mips/include/debug/8250.S |  60 +++++++++++++++++++
>   arch/mips/include/debug/uhi.S  |  48 +++++++++++++++
>   arch/mips/kernel/Makefile      |   2 +
>   arch/mips/kernel/debug.S       | 130 +++++++++++++++++++++++++++++++++++++++++
>   5 files changed, 320 insertions(+)

Reviewed-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>