Re: [PATCH v8 08/13] arm: mach-k3: am62a7_init: Resume on LPM exit

["Markus Schneider-Pargmann" <msp@baylibre.com>]

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Hi Udit,

On Tue Dec 23, 2025 at 9:10 AM CET, Udit Kumar wrote:
> Hi Markus
>
> On 12/23/2025 1:31 AM, 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.
>>
>> Signed-off-by: Markus Schneider-Pargmann (TI.com) <msp@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 c1c7d669a45f53b7528c80d44bf9b914fed1cc10..51b0386853b065d62cd0ecac589e316de5ab4038 100644
>> --- a/arch/arm/mach-k3/am62ax/am62a7_init.c
>> +++ b/arch/arm/mach-k3/am62ax/am62a7_init.c
>> @@ -198,6 +198,15 @@ 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);
>> +	}
>
> Could you help, how qos will be set after s2r

Yes, you are right, a misunderstanding on my side. I swapped
spl_enable_cache() and setup_qos() for the next version and only do
setup_qos() before lpm resume.

Thanks for all your reviews.

Best
Markus

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