ERR004366
Chip Errata for the i.MX 6Dual/6Quad and i.MX 6DualPlus/6QuadPlus, Rev. 6.1, 06/2016
124
NXP Semiconductors
Description:
When an AHB slave performs a read access operation on the register bank, the data is sampled one
SFR clock cycle earlier than required, consequently the data returned may be invalid. The AHB
Slave read operation returns incorrect data when SRM/revocation memory read accesses through
software registers in the address range 0x00125020 - 0x0012671F.
Note this issue only affects the registers associated with HDCP functions. Other HDMI functions
are not affected.
Projected Impact:
Invalid data will be read by the ARM core.
Workarounds:
For reliable read operations, use the ARM core read command twice targeting the same address,
discard the first data read value, and use the second read value.
Proposed Solution:
No fix scheduled
Linux BSP Status:
Software workaround integrated in Linux BSP codebase starting in release imx_3.0.35_4.1.0.
Software workaround has been implemented with HDMI driver enabled.
ERR004366
HDMI: 9000482480—ARM core read operation returns incorrect data
for certain HDCP registers
