Article ID: 000086276 Content Type: Troubleshooting Last Reviewed: 05/22/2017

Why does the HPS SPI Master fail when slave select is mapped to GPIO?

Environment

    Intel® Quartus® Prime Pro Edition
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Description

Due to a problem with the SPI IP linux driver (spi-dw.c) in linux-socfpga kernel 4.1.22-ltsi, the SPI IP will fail to operate if slave select is routed to GPIO with the cs-gpios entry in device tree.

 

 

 

Resolution

This problem is fixed in the linux-socfpga-linux kernel 4.1.33-ltsi. 

 

GIT location:

https://github.com/altera-opensource/linux-socfpga

Precompiled version on Rocketboards.org:

https://rocketboards.org/foswiki/Documentation/GSRD170ReleaseNotes

 

 

Related Products

This article applies to 7 products

Cyclone® V FPGAs and SoC FPGAs
Cyclone® V GT FPGA
Arria® V ST SoC FPGA
Cyclone® V E FPGA
Cyclone® V ST SoC FPGA
Arria® V SX SoC FPGA
Cyclone® V SE SoC FPGA

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