Hello Everyone. Someone figured out that we do not wait long enough for the DDR chip to be ready during initializing. During that debug it was also discovered we don't handle warm resets correctly. These 2 patches should fix this.
I don't have a scope fast enough to prove these patches have fixed the reported issues but I am boot testing (cold and warm resets) with a BBB at my desk which seems to be OK with these applied. With how old these platforms are I doubt we will see any issue on our current devices and probably need a different DDR part to see any stability improvements but these should help stabilize board wakeups with different DDR parts. Happy Hacking ~Bryan Signed-off-by: Bryan Brattlof <[email protected]> --- Bryan Brattlof (2): arm: mach-omap2: am33xx: ddr: ensure proper reset->cke delay arm: mach-omap2: am33xx: check VTP before reinitalizing arch/arm/mach-omap2/am33xx/ddr.c | 2 +- arch/arm/mach-omap2/am33xx/emif4.c | 21 +++++++++++++++------ 2 files changed, 16 insertions(+), 7 deletions(-) --- base-commit: fcda974e36033ad5331a9b4a4a551af4e141ad7d change-id: 20251028-335-ddr-cke-delay-9d739233d77e Best regards, -- Bryan Brattlof <[email protected]>
