Re: [coreboot] DediProg EM100Pro with Apollo Lake

[Andrey Petrov]

Hi

On 05/30/2017 12:36 AM, Urs Ritzmann wrote:
> Is there a way to disable Quad IO Read(0xEB) from the flash descriptor region?

please try clearing bits 3 (Quad I/O Read Enable) and 2 (Quad Output 
Read Enable) at 0x108 offset.

Andrey

DediProg EM100Pro with Apollo Lake

[Urs Ritzmann]

Hi

On Tuesday, 30. May 2017 17:47, Andrey Petrov wrote:
> please try clearing bits 3 (Quad I/O Read Enable) and 2 (Quad Output
> Read Enable) at 0x108 offset.

Thanks, it successfully disables Quad I/O and Quad Outpout Read Enable. Unfortunately, I still get strange offsets after a couple thousand read commands. I contacted Dediprog, perhaps something with the SFDP is wrong.

What flash type were you emulating? I require a 1.8 Volt device with >= 128Mbit size.

BR
Urs