linux-kernel - [PATCH 3/5] dt-bindings: mmc: sdhci-cadence: SD6 support

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Date:   Mon, 19 Dec 2022 06:24:16 -0800
From:   Piyush Malgujar <pmalgujar@...vell.com>
To:     <linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <adrian.hunter@...el.com>, <ulf.hansson@...aro.org>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <yamada.masahiro@...ionext.com>, <devicetree@...r.kernel.org>
CC:     <jannadurai@...vell.com>, <cchavva@...vell.com>,
        Piyush Malgujar <pmalgujar@...vell.com>
Subject: [PATCH 3/5] dt-bindings: mmc: sdhci-cadence: SD6 support

From: Jayanthi Annadurai <jannadurai@...vell.com>

Add support for SD6 controller support

Signed-off-by: Jayanthi Annadurai <jannadurai@...vell.com>
Signed-off-by: Piyush Malgujar <pmalgujar@...vell.com>
---
 .../devicetree/bindings/mmc/cdns,sdhci.yaml   | 33 +++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
index 8b1a0fdcb5e3e2e8b87d8d7678e37f3dad447fc1..2043e78ccd5f708a01e87fd96ec410418fcd539f 100644
--- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
@@ -4,7 +4,7 @@
 $id: http://devicetree.org/schemas/mmc/cdns,sdhci.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Cadence SD/SDIO/eMMC Host Controller (SD4HC)
+title: Cadence SD/SDIO/eMMC Host Controller (SD4HC, SD6HC)
 
 maintainers:
   - Masahiro Yamada <yamada.masahiro@...ionext.com>
@@ -19,6 +19,7 @@ properties:
           - microchip,mpfs-sd4hc
           - socionext,uniphier-sd4hc
       - const: cdns,sd4hc
+      - const: cdns,sd6hc
 
   reg:
     maxItems: 1
@@ -111,6 +112,34 @@ properties:
     minimum: 0
     maximum: 0x7f
 
+  cdns,iocell_input_delay:
+    description: Delay in ps across the input IO cells
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+
+  cdns,iocell_output_delay:
+    description: Delay in ps across the output IO cells
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+
+  cdns,delay_element:
+    description: Delay element in ps used for calculating phy timings
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+
+  cdns,read_dqs_cmd_delay:
+    description: Command delay used in HS200 tuning
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+
+  cdns,tune_val_start:
+    description: Staring value of data delay used in HS200 tuning
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+
+  cdns,tune_val_step:
+    description: Incremental value of data delay used in HS200 tuning
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+
+  cdns,max_tune_iter:
+    description: Maximum number of iterations to complete the HS200 tuning process
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+
 required:
   - compatible
   - reg
@@ -122,7 +151,7 @@ unevaluatedProperties: false
 examples:
   - |
     emmc: mmc@...00000 {
-        compatible = "socionext,uniphier-sd4hc", "cdns,sd4hc";
+        compatible = "socionext,uniphier-sd4hc", "cdns,sd4hc", "cdns,sd6hc";
         reg = <0x5a000000 0x400>;
         interrupts = <0 78 4>;
         clocks = <&clk 4>;
-- 
2.17.1