[PATCH] arm: dts: k3-j722s-r5-evm: Add LPDDR4 4000 MT/s configs

[Kumar, Udit]

On 10/17/2024 2:01 AM, Bryan Brattlof wrote:
> Hi Vaishnav!
>
> On October 16, 2024 thus sayeth Vaishnav Achath:
>> Add the latest 4000 MT/s DDR config generated by
>> Jacinto7_DDRSS_RegConfigTool Rev 0.11 for J722S , make it the
>> default config and update A53 default clock to 1.4 GHz matching
>> the default speed grade (K).
>>
>> Signed-off-by: Vaishnav Achath <vaishnav.a at ti.com>
>> ---
>>
>> memtester logs on J722S EVM:
>> 	https://gist.github.com/vaishnavachath/4174d02e0338e53594015dfdd321a8ef
>> The max frequency was not bumped up to 4000 MT/s initially
>> since the characterization results were not available.
>> All the devices populated on J722S EVM and Beagle Y AI is speed
>> grade K.
>>
>>   arch/arm/dts/k3-j722s-ddr-lp4-50-4000.dtsi | 2797 ++++++++++++++++++++
>>   arch/arm/dts/k3-j722s-r5-evm.dts           |    4 +-
>>   2 files changed, 2799 insertions(+), 2 deletions(-)
>>   create mode 100644 arch/arm/dts/k3-j722s-ddr-lp4-50-4000.dtsi
>>
> ...
>
>> diff --git a/arch/arm/dts/k3-j722s-r5-evm.dts
>> b/arch/arm/dts/k3-j722s-r5-evm.dts
>> index aff83cd5d9..46f420d510 100644
>> --- a/arch/arm/dts/k3-j722s-r5-evm.dts
>> +++ b/arch/arm/dts/k3-j722s-r5-evm.dts
>> @@ -7,7 +7,7 @@
>>   #include "k3-j722s-evm.dts"
>>   #include "k3-j722s-evm-u-boot.dtsi"
>>   
>> -#include "k3-j722s-ddr-lp4-50-3733.dtsi"
>> +#include "k3-j722s-ddr-lp4-50-4000.dtsi"
> Do we need to keep the 3733MT/s config around anymore?

I suggest to keep this, in case someone want to use lower grade SOC

then they can just change #include instead of doing regeneration of 
whole config


>
> ~Bryan