Re: [PATCH 1/1] sunxi: sun4i: Reduce cpu clock at SPL initialization to 144 MHz

2024-01-31 Thread Andre Przywara
On Wed, 31 Jan 2024 14:26:02 +0100 Ludwig Kormann wrote: Hi, > thanks for your feedback! thanks for the quick reply! > Am 31.01.24 um 13:36 schrieb Andre Przywara: > > On Wed, 31 Jan 2024 11:49:43 +0100 > > Ludwig Kormann wrote: > > > > Hi Ludwig, > > > > thanks for taking care and sending a

Re: [PATCH 1/1] sunxi: sun4i: Reduce cpu clock at SPL initialization to 144 MHz

2024-01-31 Thread Ludwig Kormann
Hi Andre, thanks for your feedback! Am 31.01.24 um 13:36 schrieb Andre Przywara: On Wed, 31 Jan 2024 11:49:43 +0100 Ludwig Kormann wrote: Hi Ludwig, thanks for taking care and sending a patch, though I scratch my head about this a bit. My main concern is why this would be an issue *now*, 11

Re: [PATCH 1/1] sunxi: sun4i: Reduce cpu clock at SPL initialization to 144 MHz

2024-01-31 Thread Andre Przywara
On Wed, 31 Jan 2024 11:49:43 +0100 Ludwig Kormann wrote: Hi Ludwig, thanks for taking care and sending a patch, though I scratch my head about this a bit. My main concern is why this would be an issue *now*, 11 years after the A20's release, and with tons of boards out there in operation. Also

[PATCH 1/1] sunxi: sun4i: Reduce cpu clock at SPL initialization to 144 MHz

2024-01-31 Thread Ludwig Kormann
Up until now cpu clock gets initialized at 384 MHz, which is the highest supported cpu clock. Recent A20 batches show an increased percentage of modules reacting very sensitive to operating conditions outside the specifications. The cpu dies very shortly after PLLs, core frequency or cpu voltage