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 <vaishna...@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
