Re: [PATCH] EDAC/altera: Handle OCRAM ECC enable after warm reset

From: Niravkumar L Rabara
Date: Tue Nov 11 2025 - 02:20:50 EST




On 10/11/2025 2:57 am, Borislav Petkov wrote:
On Mon, Nov 03, 2025 at 10:09:20PM +0800, niravkumarlaxmidas.rabara@xxxxxxxxxx wrote:
From: Niravkumar L Rabara <niravkumarlaxmidas.rabara@xxxxxxxxxx>

The OCRAM ECC is always enabled either by the BootROM or by the Secure
Device Manager (SDM) during a power-on reset on SoCFPGA.

However, during a warm reset, the OCRAM content is retained to preserve
data, while the control and status registers are reset to their default
values. As a result, ECC must be explicitly re-enabled after a warm reset.

Signed-off-by: Niravkumar L Rabara <niravkumarlaxmidas.rabara@xxxxxxxxxx>
---
drivers/edac/altera_edac.c | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)

Does this need to go stable?

Fixes: tag?


Yes, I missed it.
Will send v2 patch with the Fixes and CC tags.

Thanks,
Nirav