[PATCH v5 02/13] arm: mach-k3: Kconfig: Add symbols for IO+DDR Low Power Mode

[Markus Schneider-Pargmann]

Hi Dhruva,

On Tue Nov 11, 2025 at 10:35 AM CET, Dhruva Gole wrote:
> On Nov 10, 2025 at 21:10:26 +0100, Markus Schneider-Pargmann (TI.com) wrote:
>> There is one new symbol to enable support to resume from IO+DDR where
>> the SoC is turned off and DDR is in self-refresh.
>> 
>> The other symbol is the address of a memory region to be used to store
>> meta data. This has to be the same address as is used by the firmware.
>
> $title and here as well, sorry but I am just a bit confused, what/where is the
> other symbol?

Thanks for spotting this, I had multiple config symbols in an earlier
revision. But the second config symbol is not necessary anymore.

Best
Markus

>
>> 
>> Tested-by: Anshul Dalal <anshuld at ti.com>
>> Signed-off-by: Markus Schneider-Pargmann (TI.com) <msp at baylibre.com>
>> ---
>>  arch/arm/mach-k3/Kconfig | 8 ++++++++
>>  1 file changed, 8 insertions(+)
>> 
>> diff --git a/arch/arm/mach-k3/Kconfig b/arch/arm/mach-k3/Kconfig
>> index 1b8c0b1eb968f0414107c0bf3142f744ce8364c8..4b7cef64935c7b403051c080eba7bdb48f727bf1 100644
>> --- a/arch/arm/mach-k3/Kconfig
>> +++ b/arch/arm/mach-k3/Kconfig
>> @@ -148,6 +148,14 @@ config K3_DM_FW
>>  	  bootloader, it makes RM and PM services not being available
>>  	  during R5 SPL execution time.
>>  
>> +config K3_IODDR
>
> I see only 1 symbol - ie. this K3_IODDR throughout?
>
>> +	bool "Enable IO+DDR Low Power Mode support"
>> +	depends on SPL && (SOC_K3_AM62A7 || SOC_K3_AM62P5)
>> +	help
>> +	  Enable support for IO+DDR Low Power Mode. If this is enabled and a
>> +	  resume from IO+DDR is detected, metadata in the DDR is used to
>> +	  restore TIFS and resume DM.
>> +
>>  config K3_X509_SWRV
>>  	int "SWRV for X509 certificate used for boot images"
>>  	default 1
>> 
>> -- 
>> 2.51.0
>> 

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