[PATCH v7 08/13] arm: mach-k3: am62a7_init: Resume on LPM exit

Kumar, Udit u-kumar1 at ti.com
Sat Dec 13 07:55:21 CET 2025


On 12/10/2025 7:39 PM, Markus Schneider-Pargmann (TI.com) wrote:
> When exiting a low power mode with DDR self-refresh, we can directly
> resume after DDR setup is done. Call the common function to resume.
>
> Tested-by: Anshul Dalal <anshuld at ti.com>
> Signed-off-by: Markus Schneider-Pargmann (TI.com) <msp at baylibre.com>
> ---
>   arch/arm/mach-k3/am62ax/am62a7_init.c | 9 +++++++++
>   1 file changed, 9 insertions(+)
>
> diff --git a/arch/arm/mach-k3/am62ax/am62a7_init.c b/arch/arm/mach-k3/am62ax/am62a7_init.c
> index 24fdfdd7f1d9146f0cb6dde333d2bb54df96700d..9fe671c3ff458189ba04ddedd0f2fa8894629cec 100644
> --- a/arch/arm/mach-k3/am62ax/am62a7_init.c
> +++ b/arch/arm/mach-k3/am62ax/am62a7_init.c
> @@ -197,6 +197,15 @@ void board_init_f(ulong dummy)
>   	ret = uclass_get_device(UCLASS_RAM, 0, &dev);
>   	if (ret)
>   		panic("DRAM init failed: %d\n", ret);
> +
> +	if (wkup_ctrl_is_lpm_exit()) {
> +		u64 meta_data_addr;
> +
> +		ret = wkup_r5f_am62_lpm_meta_data_addr(&meta_data_addr);
> +		if (ret)
> +			panic("Failed to get LPM meta data address %d\n", ret);
> +		lpm_resume_from_ddr(meta_data_addr);
> +	}
>   #endif

I think, code will not return here after resume then how setup_qos will 
be done ?

>   	spl_enable_cache();
>   
>


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