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| author | Avri Altman <avri.altman@wdc.com> | 2024-08-11 16:37:57 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2024-08-13 04:11:24 +0200 |
| commit | f51d748195773c7780deca815dc787c281d77eb5 (patch) | |
| tree | 03a579ea59f7823b5c4cb49fa5315689defcba30 /Documentation/ABI | |
| parent | scsi: ufs: Prepare to add HCI capabilities sysfs (diff) | |
| download | linux-f51d748195773c7780deca815dc787c281d77eb5.tar.xz linux-f51d748195773c7780deca815dc787c281d77eb5.zip | |
scsi: ufs: Add HCI capabilities sysfs group
The standard register map of UFSHCI is comprised of several groups. The
first group (starting from offset 0x00), is the host capabilities group.
It contains some interesting information that otherwise is not available,
e.g. the UFS version of the platform etc.
Reviewed-by: Keoseong Park <keosung.park@samsung.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20240811143757.2538212-3-avri.altman@wdc.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-ufs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs index fe943ce76c60..5fa6655aee84 100644 --- a/Documentation/ABI/testing/sysfs-driver-ufs +++ b/Documentation/ABI/testing/sysfs-driver-ufs @@ -1532,3 +1532,30 @@ Contact: Bean Huo <beanhuo@micron.com> Description: rtc_update_ms indicates how often the host should synchronize or update the UFS RTC. If set to 0, this will disable UFS RTC periodic update. + +What: /sys/devices/platform/.../ufshci_capabilities/version +Date: August 2024 +Contact: Avri Altman <avri.altman@wdc.com> +Description: + Host Capabilities register group: UFS version register. + Symbol - VER. This file shows the UFSHCD version. + Example: Version 3.12 would be represented as 0000_0312h. + The file is read only. + +What: /sys/devices/platform/.../ufshci_capabilities/product_id +Date: August 2024 +Contact: Avri Altman <avri.altman@wdc.com> +Description: + Host Capabilities register group: product ID register. + Symbol - HCPID. This file shows the UFSHCD product id. + The content of this register is vendor specific. + The file is read only. + +What: /sys/devices/platform/.../ufshci_capabilities/man_id +Date: August 2024 +Contact: Avri Altman <avri.altman@wdc.com> +Description: + Host Capabilities register group: manufacturer ID register. + Symbol - HCMID. This file shows the UFSHCD manufacturer id. + The Manufacturer ID is defined by JEDEC in JEDEC-JEP106. + The file is read only. |