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

From: Andrea della Porta
Date: Sat Apr 13 2024 - 18:15:11 EST


Signed-off-by: Andrea della Porta <andrea.porta@xxxxxxxx>
---
.../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@fff000 {
+ 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