linux-kernel - [PATCH 2/6] dt-bindings: mmc: Add support for BCM2712 SD host controller

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Message-ID: <ad96fff723675c2d65a5e3328da9b09f2781cbcd.1713036964.git.andrea.porta@suse.com>
Date: Sun, 14 Apr 2024 00:14:24 +0200
From: Andrea della Porta <andrea.porta@...e.com>
To: Ulf Hansson <ulf.hansson@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Kamal Dasu <kamal.dasu@...adcom.com>,
	Al Cooper <alcooperx@...il.com>,
	della Porta <andrea.porta@...e.com>,
	linux-mmc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	Jonathan Bell <jonathan@...pberrypi.com>,
	Phil Elwell <phil@...pberrypi.com>
Subject: [PATCH 2/6] dt-bindings: mmc: Add support for BCM2712 SD host controller

Signed-off-by: Andrea della Porta <andrea.porta@...e.com>
---
 .../bindings/mmc/brcm,sdhci-brcmstb.yaml      | 51 ++++++++++++++++++-
 1 file changed, 50 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml
index cbd3d6c6c77f..6aa137d78e4f 100644
--- a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml
+++ b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml
@@ -13,6 +13,7 @@ maintainers:
 properties:
   compatible:
     oneOf:
+      - const: brcm,bcm2712-sdhci
       - items:
           - enum:
               - brcm,bcm7216-sdhci
@@ -26,12 +27,16 @@ properties:
           - const: brcm,sdhci-brcmstb
 
   reg:
-    maxItems: 2
+    minItems: 2
+    maxItems: 4
 
   reg-names:
+    minItems: 2
     items:
       - const: host
       - const: cfg
+      - const: busisol
+      - const: lcpll
 
   interrupts:
     maxItems: 1
@@ -60,6 +65,7 @@ properties:
     description: Specifies that controller should use auto CMD12
 
 allOf:
+  - $ref: sdhci-common.yaml
   - $ref: mmc-controller.yaml#
   - if:
       properties:
@@ -71,6 +77,28 @@ allOf:
       required:
         - clock-frequency
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: brcm,bcm2712-sdhci
+
+    then:
+      properties:
+        reg:
+          maxItems: 4
+        clock-names:
+         const: "sw_sdio"
+
+    else:
+      properties:
+        reg:
+          minItems: 2
+          maxItems: 2
+        reg-names:
+          minItems: 2
+          maxItems: 2
+
 required:
   - compatible
   - reg
@@ -114,3 +142,24 @@ examples:
       clocks = <&scmi_clk 245>;
       clock-names = "sw_sdio";
     };
+
+  - |
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      mmc@...000 {
+        compatible = "brcm,bcm2712-sdhci";
+        reg = <0x10 0x00fff000  0x0 0x260>,
+              <0x10 0x00fff400  0x0 0x200>,
+              <0x10 0x015040b0  0x0 0x4>,  // Bus isolation control
+              <0x10 0x015200f0  0x0 0x24>; // LCPLL control misc0-8
+        reg-names = "host", "cfg", "busisol", "lcpll";
+        interrupts = <0x0 0x111 0x4>;
+        clocks = <&clk_emmc2>;
+        sdhci-caps-mask = <0x0000C000 0x0>;
+        sdhci-caps = <0x0 0x0>;
+        mmc-ddr-3_3v;
+        clock-names = "sw_sdio";
+      };
+    };
-- 
2.35.3