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| author | Martin K. Petersen <martin.petersen@oracle.com> | 2025-03-10 21:36:30 -0400 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-03-10 21:36:30 -0400 |
| commit | ffd6c179286daf31ea0d6413228bbc2a3c7ee1de (patch) | |
| tree | e49bb319e1dbedbe0fabaea15cedc3d81227ada3 /Documentation/devicetree/bindings/ufs | |
| parent | bde2ff79ee142d8523c12a9e277551bb90a4d925 (diff) | |
| parent | b3bb1762451a9b2e3374c35ce3f8745c3a68a1d3 (diff) | |
Merge patch series "scsi: ufs: renesas: Add support for R-Car S4-8 ES1.2"
Geert Uytterhoeven <geert+renesas@glider.be> says:
Hi all,
Initialization of the UFS controller on R-Car S4-8 ES1.0 requires only
static values. However, other UFS controller variants (R-Car S4-8 ES 1.2)
require dynamic values, like those obtained from E-FUSE, and downloading
firmware.
Hence this patch series refactors the initialization code to prepare for
this, and adds support for the UFS controller on R-Car S4-8 ES1.2.
The accompanying DTS change is available at [1].
This has been tested on:
- Renesas Spider with R-Car S4-8 ES1.0 (broken before/after),
- Renesas S4 Starter Kit with R-Car S4-8 ES1.2 (works after).
Thanks for your comments!
[1] "[PATCH] arm64: dts: renesas: r8a779f4: Add UFS tuning parameters in
E-FUSE"
https://lore.kernel.org/3e4fca228eb049d54a1ae520104558505dbdf803.1741179629.git.geert+renesas@glider.be
[2] "[PATCH v2 0/5] scsi: ufs: renesas: Refactor code for other UFS
controller"
https://lore.kernel.org/20240709023550.1750333-1-yoshihiro.shimoda.uh@renesas.com
[3] "[PATCH 0/5] scsi: ufs: renesas: Refactor code for other UFS
controller"
https://lore.kernel.org/20240708120931.1703956-1-yoshihiro.shimoda.uh@renesas.com
Link: https://lore.kernel.org/r/cover.1741179611.git.geert+renesas@glider.be
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'Documentation/devicetree/bindings/ufs')
| -rw-r--r-- | Documentation/devicetree/bindings/ufs/renesas,ufs.yaml | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/ufs/renesas,ufs.yaml b/Documentation/devicetree/bindings/ufs/renesas,ufs.yaml index 1949a15e73d2..ac11ac7d1d12 100644 --- a/Documentation/devicetree/bindings/ufs/renesas,ufs.yaml +++ b/Documentation/devicetree/bindings/ufs/renesas,ufs.yaml @@ -33,6 +33,16 @@ properties: resets: maxItems: 1 + nvmem-cells: + maxItems: 1 + + nvmem-cell-names: + items: + - const: calibration + +dependencies: + nvmem-cells: [ nvmem-cell-names ] + required: - compatible - reg @@ -58,4 +68,6 @@ examples: freq-table-hz = <200000000 200000000>, <38400000 38400000>; power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>; resets = <&cpg 1514>; + nvmem-cells = <&ufs_tune>; + nvmem-cell-names = "calibration"; }; |