[PATCH 1/1] rpi: copy over uart clock-frequency in DT

[Peter Robinson]

On Tue, 15 Apr 2025 at 09:30, Bruno Leite <brunosampaioleite at gmail.com>
wrote:

> From: Bruno Leite <brule at prevas.dk>
>
> rpi5 firmware sets uart_clk clock-frequency in
> the firmware and patches it to the DT, copy it
> over when loading a new DT.
>
> Signed-off-by: Bruno Leite <brule at prevas.dk>
>
Reviewed-by: Peter Robinson <pbrobinson at gmail.com>
Tested-by: Peter Robinson <pbrobinson at gmail.com>


>
> ---
>
>  board/raspberrypi/rpi/rpi.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
> index 70d3c35499b..5c84c324c71 100644
> --- a/board/raspberrypi/rpi/rpi.c
> +++ b/board/raspberrypi/rpi/rpi.c
> @@ -602,6 +602,9 @@ void  update_fdt_from_fw(void *fdt, void *fw_fdt)
>
>         /* Bluetooth device address as provided by the firmware */
>         copy_property(fdt, fw_fdt, "/soc/serial at 7e201000/bluetooth",
> "local-bd-address");
> +
> +       /* copy uart clk as provided by the firmware */
> +       copy_property(fdt, fw_fdt, "/clocks/clk-uart", "clock-frequency");
>  }
>
>  int ft_board_setup(void *blob, struct bd_info *bd)
> --
> 2.45.2
>
>