The iMx6 Chip Errata - Linux BSP solution status

[kenlin]

Hi,

I would like to check the iMx6 errata solution phase-in status in kernel 4.8 and u-boot 2016.10 and tried to filter out the items that come with software solution before (the patches in previous iMx6 BSP releases e.g. imx_3.0.35_4.1.0, .. ) in the table below. 

I'm not sure how to check the software solutions to the errata items (marked in yellow) below. Need to get the feedback/comments from NXP team.

ERR005852, ERR003740,ERR005185,ERR005200,ERR009604,ERR006223,ERR009219,ERR005174,ERR004366,ERR009623,ERR005193,ERR005778,ERR005184,ERR009619,ERR009624,ERR007266,ERR009598,ERR008990,ERR004534,ERR006308,ERR004535,ERR007881,ERR004345,ERR004363

Errata number	Category	Description	In kernel 4.8 ?	In u-boot 2016.10 ?
ERR005852	Analog	Analog: Transition from Deep Sleep Mode to LDO Bypass Mode may cause the slow
ERR003718	ARM	ARM: 743622—Faulty logic in the Store Buffer may lead to data corruption		v
ERR003720	ARM/MP	ARM/MP: 751472—An interrupted ICIALLUIS operation may prevent the completion of a following broadcast operation		v
ERR003724	ARM	ARM: 754322—Possible faulty MMU translations following an ASID switch	v
ERR003740	ARM/PL310	ARM/PL310: 752271—Double linefill feature can cause data corruption [i.MX 6Dual/6Quad only]
ERR004325	ARM/MP	ARM/MP: 764369—Data or unified cache line maintenance operation by MVA may not succeed on an Inner Shareable memory region	v
ERR005185	ARM/MP	ARM/MP: 771225—Speculative cacheable reads to aborting memory region clear the internal exclusive monitor, may lead to livelock
ERR005199	ARM/MP	ARM/MP: 769419—No automatic Store Buffer drain, visibility of written data requires an explicit Cache Sync operation [i.MX 6Dual/6Quad Only]	v
ERR005200	ARM/MP	ARM/MP: 765569—Prefetcher can cross 4 KB boundary if offset is programmed with value 23
ERR005383	ARM/MP	ARM/MP: 775420—A data cache maintenance operation that aborts, followed by an ISB and without any DSB in-between, might lead to deadlock	v
ERR007006	ARM/MP	ARM/MP:794072-- Short loop including a DMB instruction might cause a denial of service		v
ERR009604	ARM (CA9)	ARM (CA9): 845369 — Under very rare timing circumstances, transition into streaming mode might create a data corruption		x
ERR009605	ARM (CA9)	ARM (CA9): 761320—Full cache line writes to the same memory region from at least two processors might deadlock the processor		v
ERR006223	CCM	CCM: Failure to resume from Wait/Stop mode with power gating
ERR007265	CCM	CCM: When improper low-power sequence is used, the SoC enters low power mode before the ARM core executes WFI	v
ERR009219	CCM	CCM: Asynchronous clock switching can cause unpredictable behavior [i.MX6 Dual/6Quad Only]
ERR009165	eCSPI	eCSPI: TXFIFO empty flag glitch can cause the current FIFO transfer to be sent twice	v
ERR006358	ENET	ENET: Write to Transmit Descriptor Active Register (ENET_TDAR) is ignored	v
ERR006687	ENET	ENET: Only the ENET wake-up interrupt request can wake the system from Wait	v
ERR004323	HDMI	HDMI: The DMA burst read transaction address region is limited to 8 KB	v
ERR005171	HDMI	HDMI: HDMI Tx audio may have noise due to audio DMA FIFO overflow	v
ERR005173	HDMI	HDMI: Clarification on HDMI programming procedure to avoid FIFO overflow	v
ERR005174	HDMI	HDMI: HDMI AHB Audio DMA stream misalignment on system initialization
ERR004366	HDMI	HDMI: 9000482480—ARM core read operation returns incorrect data for certain HDCP registers
ERR009623	IPU	IPU: IDMAC burst errors when crossing a 4k boundary using NI/PI 420/422 formats [i.MX 6DualPlus/6QuadPlus Only]
ERR005193	MIPI	MIPI: Corruption of short command packets with Word Count (WC) greater than 16’hFFEE, during video mode transmission by the MIPI Generic Interface
ERR005778	MMDC	MMDC: DDR Controller’s measure unit may return an incorrect value when operating below 100 MHz
ERR005184	PCIe	PCIe: Clock pointers can lose sync during clock rate changes
ERR008587	PCIe	PCIe: Random link down after warm reset [i.MX 6Dual/6Quad Only]	v
ERR009619	PRE	PRE: GPU3D, GPU2D and VPU cannot be power-gated if the PRE is in use [i.MX 6DualPlus/6QuadPlus Only]
ERR009624	PRE	PRE: ENABLE bit cannot be set in a special case, when the EN_REPEAT bit is set [i.MX 6DualPlus/6QuadPlus Only]
ERR007266	ROM	ROM: EIM NOR boot may fail if plug-in is used
ERR007966	SATA	SATA:SATA speed negotiation fails after suspend and resume —[i.MX 6Dual/6Quad Only]
ERR009598	SATA	SATA: PRD not flushed from PRD FIFO at command list underflow
ERR008990	SSI	SSI: Channel swap in single FIFO mode when an underrun or overrun occurs
ERR004534	USB	USB: Wrong HS disconnection may be generated after resume
ERR006308	USB	USB: Host non-doubleword –aligned buffer address can cause host to hang on OUT Retry
ERR004535	VPU	VPU: Wrong interrupt is generated sometimes when context switching to H.264 encoder, during multi-instance
ERR007881	USB	USB: Timeout error in Device mode
ERR004345	USB	USB: USB suspend and resume flow clarifications
ERR004363	VPU	VPU: Causes a macro-block of P-picture decoding error
ERR004346	WDOG	WDOG: WDOG SRS bit requires to be written twice	v

[igorpadykov]

Hi Ken

kernel 4.8 and u-boot 2016.10 are not supported by nxp, nxp official bsps located on link

http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/i.mx-applications-process...

and errata status is described in Errata document as "Linux BSP Status" for each item i.MX6DQ Errata

http://cache.freescale.com/files/32bit/doc/errata/IMX6DQCE.pdf

Please check difference between NXP(FSL) official BSP and NXP(FSL) community BSP

https://community.freescale.com/message/402940#402940

For kernel 4.8 one can post on mainline kernel mail list.

================================================================
Best regards
igor
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