Article ID: 000086289 Content Type: Troubleshooting Last Reviewed: 05/30/2017

Why does Cyclone V SoC CAN data corrupt in Linux?

Environment

    Intel® Quartus® Prime Pro Edition
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Description

Due to a problem in Linux-socfpga kernels before to 4.1.33 for Cyclone® V SoC,  CAN data may be currupted.  This is due to a HPS L4 Slave Interface limitation, registers on CAN controller should be accessed with 32-bit width, and are incorrectly accessed as 16-bit.

Resolution

socfpga-4.1.33 LTSI or later have fixed in the issue.

See can: c_can: Update D_CAN TX and RX functions to 32 bit - fix Altera Cyclone access

Related Products

This article applies to 3 products

Cyclone® V SX SoC FPGA
Cyclone® V ST SoC FPGA
Cyclone® V SE SoC FPGA

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