[PATCH 1/2] arm: mach-k3: am642: Update MAIN UART1 serial alias from 3 to 1

[Wadim Egorov]

Hi,

On 6/5/26 9:38 PM, Vishal Mahaveer wrote:
> The upstream device tree changed the serial alias for MAIN UART1 from

upstream where? Can you point me to the related change?

Regards,
Wadim

> serial3 to serial1. Update the board initialization code to match this
> change by modifying the UCLASS_SERIAL sequence number lookup.
> 
> This ensures proper pin control configuration for the UART used by
> system firmware (SYSFW).
> 
> Signed-off-by: Vishal Mahaveer <vishalm at ti.com>
> ---
>  arch/arm/mach-k3/am64x/am642_init.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/mach-k3/am64x/am642_init.c b/arch/arm/mach-k3/am64x/am642_init.c
> index a15adf1cb1e..d6cc7a85aae 100644
> --- a/arch/arm/mach-k3/am64x/am642_init.c
> +++ b/arch/arm/mach-k3/am64x/am642_init.c
> @@ -212,14 +212,14 @@ void board_init_f(ulong dummy)
>  
>  #if defined(CONFIG_K3_LOAD_SYSFW)
>  	/*
> -	 * Process pinctrl for serial3 a.k.a. MAIN UART1 module and continue
> +	 * Process pinctrl for serial1 a.k.a. MAIN UART1 module and continue
>  	 * regardless of the result of pinctrl. Do this without probing the
>  	 * device, but instead by searching the device that would request the
>  	 * given sequence number if probed. The UART will be used by the system
>  	 * firmware (SYSFW) image for various purposes and SYSFW depends on us
>  	 * to initialize its pin settings.
>  	 */
> -	ret = uclass_find_device_by_seq(UCLASS_SERIAL, 3, &dev);
> +	ret = uclass_find_device_by_seq(UCLASS_SERIAL, 1, &dev);
>  	if (!ret)
>  		pinctrl_select_state(dev, "default");
>