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OSPI Doc Updates #420

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Merged
praneethbajjuri merged 2 commits into from
Aug 15, 2025
Merged

OSPI Doc Updates #420

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b62579f
feat(am6*): Add/Update performance numbers for 11.1 release
Jul 29, 2025
52514ec
feat(u-boot): Add workaround for OSPI NOR boot failure
Jul 29, 2025
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16 changes: 16 additions & 0 deletions source/devices/AM62AX/linux/Linux_Performance_Guide.rst
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Expand Up @@ -501,6 +501,22 @@



Linux OSPI Flash Driver

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GitHub Actions / vale 

[vale] reported by reviewdog 🐶
[RedHat.Definitions] Define acronyms and abbreviations (such as 'OSPI') on first occurrence if they're likely to be unfamiliar.

Raw Output:
{"message": "[RedHat.Definitions] Define acronyms and abbreviations (such as 'OSPI') on first occurrence if they're likely to be unfamiliar.", "location": {"path": "source/devices/AM62AX/linux/Linux_Performance_Guide.rst", "range": {"start": {"line": 504, "column": 7}}}, "severity": "INFO"}

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GitHub Actions / vale 

[vale] reported by reviewdog 🐶
[RedHat.Headings] Use sentence-style capitalization in 'Linux OSPI Flash Driver'.

Raw Output:
{"message": "[RedHat.Headings] Use sentence-style capitalization in 'Linux OSPI Flash Driver'.", "location": {"path": "source/devices/AM62AX/linux/Linux_Performance_Guide.rst", "range": {"start": {"line": 504, "column": 1}}}, "severity": "INFO"}
-----------------------


AM62AXX-SK

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[vale] reported by reviewdog 🐶
[RedHat.Headings] Use sentence-style capitalization in 'AM62AXX-SK'.

Raw Output:
{"message": "[RedHat.Headings] Use sentence-style capitalization in 'AM62AXX-SK'.", "location": {"path": "source/devices/AM62AX/linux/Linux_Performance_Guide.rst", "range": {"start": {"line": 508, "column": 1}}}, "severity": "INFO"}
^^^^^^^^^^


RAW

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[vale] reported by reviewdog 🐶
[RedHat.Definitions] Define acronyms and abbreviations (such as 'RAW') on first occurrence if they're likely to be unfamiliar.

Raw Output:
{"message": "[RedHat.Definitions] Define acronyms and abbreviations (such as 'RAW') on first occurrence if they're likely to be unfamiliar.", "location": {"path": "source/devices/AM62AX/linux/Linux_Performance_Guide.rst", "range": {"start": {"line": 512, "column": 1}}}, "severity": "INFO"}

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GitHub Actions / vale 

[vale] reported by reviewdog 🐶
[RedHat.Headings] Use sentence-style capitalization in 'RAW'.

Raw Output:
{"message": "[RedHat.Headings] Use sentence-style capitalization in 'RAW'.", "location": {"path": "source/devices/AM62AX/linux/Linux_Performance_Guide.rst", "range": {"start": {"line": 512, "column": 1}}}, "severity": "INFO"}

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GitHub Actions / vale 

[vale] reported by reviewdog 🐶
[RedHat.CaseSensitiveTerms] Use 'raw' rather than 'RAW'.

Raw Output:
{"message": "[RedHat.CaseSensitiveTerms] Use 'raw' rather than 'RAW'.", "location": {"path": "source/devices/AM62AX/linux/Linux_Performance_Guide.rst", "range": {"start": {"line": 512, "column": 1}}}, "severity": "WARNING"}
"""

.. csv-table:: OSPI Raw Flash Driver

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[vale] reported by reviewdog 🐶
[RedHat.Definitions] Define acronyms and abbreviations (such as 'OSPI') on first occurrence if they're likely to be unfamiliar.

Raw Output:
{"message": "[RedHat.Definitions] Define acronyms and abbreviations (such as 'OSPI') on first occurrence if they're likely to be unfamiliar.", "location": {"path": "source/devices/AM62AX/linux/Linux_Performance_Guide.rst", "range": {"start": {"line": 515, "column": 16}}}, "severity": "INFO"}
:header: "File size (Mbytes)","am62axx_sk-fs: Raw Read Throughput (Mbytes/sec)"

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[vale] reported by reviewdog 🐶
[RedHat.Spelling] Verify the word 'Mbytes'. It is not in the American English spelling dictionary used by Vale.

Raw Output:
{"message": "[RedHat.Spelling] Verify the word 'Mbytes'. It is not in the American English spelling dictionary used by Vale.", "location": {"path": "source/devices/AM62AX/linux/Linux_Performance_Guide.rst", "range": {"start": {"line": 516, "column": 26}}}, "severity": "WARNING"}

"50","33.33"

EMMC Driver
-----------
.. warning::
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2 changes: 1 addition & 1 deletion source/devices/AM62PX/linux/Linux_Performance_Guide.rst
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Expand Up @@ -615,7 +615,7 @@ RAW
.. csv-table:: OSPI Raw Flash Driver
:header: "File size (Mbytes)","am62pxx_sk-fs: Raw Read Throughput (Mbytes/sec)"

"50","37.88"
"50","250"



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16 changes: 16 additions & 0 deletions source/devices/AM64X/linux/Linux_Performance_Guide.rst
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Expand Up @@ -29,3 +29,19 @@

For further information or to report any problems, contact
https://e2e.ti.com/ or https://support.ti.com/

Linux OSPI Flash Driver

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[vale] reported by reviewdog 🐶
[RedHat.Definitions] Define acronyms and abbreviations (such as 'OSPI') on first occurrence if they're likely to be unfamiliar.

Raw Output:
{"message": "[RedHat.Definitions] Define acronyms and abbreviations (such as 'OSPI') on first occurrence if they're likely to be unfamiliar.", "location": {"path": "source/devices/AM64X/linux/Linux_Performance_Guide.rst", "range": {"start": {"line": 33, "column": 7}}}, "severity": "INFO"}

Check warning on line 33 in source/devices/AM64X/linux/Linux_Performance_Guide.rst

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GitHub Actions / vale 

[vale] reported by reviewdog 🐶
[RedHat.Headings] Use sentence-style capitalization in 'Linux OSPI Flash Driver'.

Raw Output:
{"message": "[RedHat.Headings] Use sentence-style capitalization in 'Linux OSPI Flash Driver'.", "location": {"path": "source/devices/AM64X/linux/Linux_Performance_Guide.rst", "range": {"start": {"line": 33, "column": 1}}}, "severity": "INFO"}
-----------------------


AM64XX-SK
^^^^^^^^^


RAW
"""

.. csv-table:: OSPI Raw Flash Driver
:header: "File size (Mbytes)","am64xx_sk-fs: Raw Read Throughput (Mbytes/sec)"

"50","172.41"
7 changes: 7 additions & 0 deletions source/linux/Foundational_Components/U-Boot/UG-QSPI.rst
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Expand Up @@ -95,6 +95,13 @@ controllers work only in master mode.
whether or not the OSPI flash part chosen for custom board designs meets all
the criteria listed at https://e2e.ti.com/support/processors/f/791/t/946418

.. ifconfig:: CONFIG_part_variant in ('AM62PX', 'AM64X')

.. important::

Apply this `patch <https://git.ti.com/cgit/ti-u-boot/ti-u-boot/commit/?h=ti-u-boot-2025.01-next&id=3d64c9fb4274ff1c7cbc7a2c8e8e33790b923bc6>`__
as it's not added with the ``11.01`` SDK release.

.. rubric:: Driver Features

OSPI controllers supports PHY Calibration in DQS + Double Data Rate (DDR) mode
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