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Documentation: ABI: add stratix10-rsu QSPI size and erase_size sysfs

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Document the eight read-only sysfs files (size0-size3, erase_size0-
erase_size3) under platform/stratix10-rsu: flash size and erase size
in bytes, 32-bit hex per line, EIO when the value is not available.

Signed-off-by: Tze Yee Ng <tze.yee.ng@altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
This commit is contained in:
Tze Yee Ng
2026-05-14 19:11:57 -07:00
committed by Dinh Nguyen
parent dc59e4fea9
commit 2fc3237e13
1 changed files with 58 additions and 0 deletions
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58
Documentation/ABI/testing/sysfs-devices-platform-stratix10-rsu
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@@ -172,3 +172,61 @@ Contact: Richard Gong <richard.gong@linux.intel.com>
Description:
(RO) max retry parameter is stored in the firmware
decision IO section, as a byte located at offset 0x18c.
What: /sys/devices/platform/stratix10-rsu.0/size0
Date: May 2026
KernelVersion: 7.1
Contact: Tze Yee Ng <tze.yee.ng@altera.com>
Description:
(RO) Flash size in bytes for QSPI device 0 (32-bit hex, one
line). EIO if unavailable.
What: /sys/devices/platform/stratix10-rsu.0/size1
Date: May 2026
KernelVersion: 7.1
Contact: Tze Yee Ng <tze.yee.ng@altera.com>
Description:
(RO) Like size0 for device 1.
What: /sys/devices/platform/stratix10-rsu.0/size2
Date: May 2026
KernelVersion: 7.1
Contact: Tze Yee Ng <tze.yee.ng@altera.com>
Description:
(RO) Like size0 for device 2.
What: /sys/devices/platform/stratix10-rsu.0/size3
Date: May 2026
KernelVersion: 7.1
Contact: Tze Yee Ng <tze.yee.ng@altera.com>
Description:
(RO) Like size0 for device 3.
What: /sys/devices/platform/stratix10-rsu.0/erase_size0
Date: May 2026
KernelVersion: 7.1
Contact: Tze Yee Ng <tze.yee.ng@altera.com>
Description:
(RO) Erase size in bytes for QSPI device 0 (32-bit hex, one
line). EIO if unavailable.
What: /sys/devices/platform/stratix10-rsu.0/erase_size1
Date: May 2026
KernelVersion: 7.1
Contact: Tze Yee Ng <tze.yee.ng@altera.com>
Description:
(RO) Like erase_size0 for device 1.
What: /sys/devices/platform/stratix10-rsu.0/erase_size2
Date: May 2026
KernelVersion: 7.1
Contact: Tze Yee Ng <tze.yee.ng@altera.com>
Description:
(RO) Like erase_size0 for device 2.
What: /sys/devices/platform/stratix10-rsu.0/erase_size3
Date: May 2026
KernelVersion: 7.1
Contact: Tze Yee Ng <tze.yee.ng@altera.com>
Description:
(RO) Like erase_size0 for device 3.