[PATCH RFC 05/10] ARM: debug: Add Cortina Systems CS75xx UART0 support

[Linus Walleij]

Hi Filipp,

thanks for your patch!

On Wed, Sep 30, 2026 at 9:00 AM Fil Dunsky via B4 Relay
<devnull+filipp.dunsky.gmail.com at kernel.org> wrote:

> +++ b/arch/arm/include/debug/cs75xx.S
> @@ -0,0 +1,36 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Debugging macro include header for the Cortina Systems CS75xx UART
> + */
> +
> +#define CS75XX_UART_TXDAT              0x10
> +#define CS75XX_UART_INFO               0x18
> +#define CS75XX_UART_INFO_TX_FULL       (1 << 2)
> +#define CS75XX_UART_INFO_TX_EMPTY      (1 << 3)

I looked through the other serial drivers but this appears to actually
be unique and
not derived from some other serial port, so:

Reviewed-by: Linus Walleij <linusw at kernel.org>

Sashiko is blathering about big endian support, I think that can be
safely ignored.

Yours,
Linus Walleij