ERR005191
Chip Errata for the i.MX 6Dual/6Quad and i.MX 6DualPlus/6QuadPlus, Rev. 6.1, 06/2016
130
NXP Semiconductors
Description:
On short packets, the WC[15:0] header field delivers the actual data payload of the packet.
However, In long packets, the same field is used to indicate the size of the packet’s payload. Video
Mode packet scheduler prevents Generic long packets to be generated with a size higher than
16’hFFEE. This size limit is imposed by the video mode packet scheduler since the maximum line
size is 16’hFFFF minus additional security margins. The core is incorrectly filtering the short
packets with WC field higher than 16’hFFEE since the size protection is applied without
considering that this field now contains data and not packet size. Short packet commands are
erroneously transmitted in DSI link with WC field equal to 16’hFFEE when this value is higher
than 16’hFFEE.
Projected Impact:
Error in transmitting the package.
Workarounds:
If a generic short packet with packet data (WC fields) higher that 16’hFFEE is required, the
application should disable the video mode transmission and use command mode transmission to
issue the command.
Proposed Solution:
No fix scheduled
Linux BSP Status:
Software workaround not implemented in Linux BSP. Functionality or mode of operation in which
the erratum may manifest itself is not used.
ERR005191
MIPI: Corruption of short command packets with Word Count (WC)
greater than 16’hFFEE, during video mode transmission by the MIPI
Generic Interface
