SPRZ426E November   2014  – February 2021 DRA710 , DRA712 , DRA714 , DRA716 , DRA718 , DRA722 , DRA724 , DRA725 , DRA726

 

  1. 1Introduction
    1.     Related Documentation
    2.     Trademarks
    3.     Modules Impacted
  2. 2Silicon Advisories
    1.     Revisions SR 2.1, 2.0, 1.0 - Advisories List
    2.     i202
    3.     i378
    4.     i631
    5.     i694
    6.     i698
    7.     i699
    8.     i709
    9.     i727
    10.     i729
    11.     i734
    12.     i767
    13.     i782
    14.     i783
    15.     i802
    16.     i803
    17.     i807
    18.     i808
    19.     i809
    20.     i810
    21.     i813
    22.     i814
    23.     i815
    24.     i818
    25.     i819
    26.     i820
    27.     i824
    28.     i826
    29.     i829
    30.     i834
    31.     i849
    32.     i856
    33.     i862
    34.     i863
    35.     i867
    36.     i868
    37.     i869
    38.     i870
    39.     i871
    40.     i872
    41.     i874
    42.     i875
    43.     i878
    44.     i879
    45.     i880
    46.     i881
    47.     i882
    48.     i883
    49.     i887
    50.     i889
    51.     i890
    52.     i893
    53.     i895
    54.     i896
    55.     i897
    56.     i898
    57.     i899
    58.     i900
    59.     i903
    60.     i904
    61.     i906
    62.     i913
    63.     i916
    64.     i927
    65.     i928
    66.     i929
    67.     i930
    68.     i932
    69.     i933
    70.     i940
  3. 3Silicon Limitations
    1.     Revisions SR 2.1, 2.0, 1.0 - Limitations List
    2.     i596
    3.     i641
    4.     i833
    5.     i838
    6.     i844
    7.     i845
    8.     i848
    9.     i876
    10.     i877
    11.     i892
    12.     i909
    13.     i917
  4. 4Silicon Cautions
    1.     Revisions SR 2.1, 2.0, 1.0 - Cautions List
    2.     i781
    3. 4.1 93
    4.     i827
    5.     i832
    6.     i836
    7.     i839
    8.     i864
    9.     i885
    10.     i886
    11.     i912
    12.     i918
    13.     i920
    14.     i926
    15.     i931
    16.     i934
    17. 4.2 107
  5. 5Revision History

i808

SATA Link Locks up under Certain Conditions

CRITICALITY

Medium

DESCRIPTION

A bug in the SATA core is integrated into the SATA controller.

Due to this bug, under certain conditions, the link locks up between the host and the device and the command times out:

  • SATA_PxIS[27] IFS = 0x1 (interface fatal error status)
  • SATA_PxSERR[23] DIAG_S = 0x1 (link sequence error)

Following cases can bring to these conditions (cases below are not exhaustive):

  • First case:
    • D2H FIS is received;
    • D2H FIS SYNC-Escape is generated (Link illegal state transition/sequence error);
    • Link locks ups because this "bad scenario" is not well implemented;
    • Command times out;
    • Soft reset will not work because of the bug.
  • Second case:
    • D2H FIS PIO Read CONTp primitive is corrupted;
    • Link locks ups because this "bad scenario" is not well implemented;
    • Command times out;
    • Soft reset will not work because of the bug.

WORKAROUND

Use a port reset (COMRESET) instead of a software reset when SATA_PxIS[27] IFS = 0x1 and SATA_PxSERR[23] DIAG_S = 0x1.

Standard software most likely uses port reset rather than a software reset to recover from such an error.

REVISIONS IMPACTED

DRA72x SR 2.0, 1.0

TDA2Ex (23mm): 2.0, 1.0

AM571x: 2.1, 2.0, 1.0

DRA72x: 2.0, 1.0