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

From: Piyush Malgujar
Date: Mon Dec 19 2022 - 09:25:52 EST


From: Jayanthi Annadurai <jannadurai@xxxxxxxxxxx>

Add support for SD6 controller support

Signed-off-by: Jayanthi Annadurai <jannadurai@xxxxxxxxxxx>
Signed-off-by: Piyush Malgujar <pmalgujar@xxxxxxxxxxx>
---
.../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@xxxxxxxxxxxxx>
@@ -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@5a000000 {
- 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