LS1023 Setting for Qspi and IFC Bus

kk_1123 — Fri, 08 Apr 2022 01:55:30 GMT

First, I set the BOOT setting of RCW to Quad SPI(QSPI_A).

After CPU boots, I'd like to use IFC Bus. But the following pins of CPU are multiplexed: 　QSPI_A_CS0/IFC_A16 　

QSPI_A_CS1/IFC_A17

If this goes on, I can't use IFC_A16,A17. To enable IFC_A16,A17,how should I do?

(I think there are some internal registers for mode setting, but I couldn't find them.)

Thank you.

Re: LS1023 Setting for Qspi and IFC Bus

mrudangshelat-13 — Mon, 03 Oct 2022 14:22:50 GMT

If QuadSPI is selected for cfg_rcw_src then the IFC_GRP_F_EXT field must be set to 001 which means IFC signals signal can't be configured.

Regards

Mrudang Shelat