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bmips: backport bcm6368-mdio-mux support
This patch has been accepted for linux v5.13. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
This commit is contained in:
Álvaro Fernández Rojas
parent
7ec9d95567
commit
34f898ec29
@ -0,0 +1,96 @@
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From da6557edb9f3f4513b01d9a20a36c2fbc31810a1 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
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Date: Mon, 15 Mar 2021 16:45:27 +0100
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Subject: [PATCH 1/2] dt-bindings: net: Add bcm6368-mdio-mux bindings
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Add documentations for bcm6368 mdio mux driver.
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Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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.../bindings/net/brcm,bcm6368-mdio-mux.yaml | 76 +++++++++++++++++++
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1 file changed, 76 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/net/brcm,bcm6368-mdio-mux.yaml
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/net/brcm,bcm6368-mdio-mux.yaml
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@@ -0,0 +1,76 @@
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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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+%YAML 1.2
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+---
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+$id: http://devicetree.org/schemas/net/brcm,bcm6368-mdio-mux.yaml#
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+$schema: http://devicetree.org/meta-schemas/core.yaml#
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+
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+title: Broadcom BCM6368 MDIO bus multiplexer
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+
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+maintainers:
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+ - Álvaro Fernández Rojas <noltari@gmail.com>
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+
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+description:
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+ This MDIO bus multiplexer defines buses that could be internal as well as
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+ external to SoCs. When child bus is selected, one needs to select these two
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+ properties as well to generate desired MDIO transaction on appropriate bus.
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+
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+allOf:
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+ - $ref: "mdio.yaml#"
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+
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+properties:
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+ compatible:
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+ const: brcm,bcm6368-mdio-mux
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+
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+ "#address-cells":
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+ const: 1
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+
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+ "#size-cells":
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+ const: 0
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+
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+ reg:
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+ maxItems: 1
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+
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+required:
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+ - compatible
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+ - reg
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+
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+patternProperties:
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+ '^mdio@[0-1]$':
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+ type: object
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+ properties:
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+ reg:
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+ maxItems: 1
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+
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+ "#address-cells":
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+ const: 1
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+
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+ "#size-cells":
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+ const: 0
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+
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+ required:
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+ - reg
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+ - "#address-cells"
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+ - "#size-cells"
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+
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+unevaluatedProperties: false
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+
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+examples:
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+ - |
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+ mdio0: mdio@10e000b0 {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ compatible = "brcm,bcm6368-mdio-mux";
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+ reg = <0x10e000b0 0x6>;
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+
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+ mdio_int: mdio@0 {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ reg = <0>;
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+ };
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+
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+ mdio_ext: mdio@1 {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ reg = <1>;
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+ };
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+ };
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@ -1,7 +1,7 @@
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From b6ecb2bca2b8ff80ae4b1b15f09dcf071f4ceaf4 Mon Sep 17 00:00:00 2001
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From e239756717b5c866958823a1609e2ccf268435be Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
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Date: Mon, 1 Mar 2021 16:42:12 +0100
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Subject: [PATCH] net: mdio: Add BCM6368 MDIO mux bus controller
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Date: Mon, 15 Mar 2021 16:45:28 +0100
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Subject: [PATCH 2/2] net: mdio: Add BCM6368 MDIO mux bus controller
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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@ -10,11 +10,12 @@ This controller is present on BCM6318, BCM6328, BCM6362, BCM6368 and BCM63268
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SoCs.
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Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/mdio/Kconfig | 11 ++
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drivers/net/mdio/Makefile | 1 +
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drivers/net/mdio/mdio-mux-bcm6368.c | 179 ++++++++++++++++++++++++++++
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3 files changed, 191 insertions(+)
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drivers/net/mdio/mdio-mux-bcm6368.c | 184 ++++++++++++++++++++++++++++
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3 files changed, 196 insertions(+)
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create mode 100644 drivers/net/mdio/mdio-mux-bcm6368.c
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--- a/drivers/net/mdio/Kconfig
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@ -49,7 +50,7 @@ Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
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obj-$(CONFIG_MDIO_BUS_MUX_MESON_G12A) += mdio-mux-meson-g12a.o
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--- /dev/null
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+++ b/drivers/net/mdio/mdio-mux-bcm6368.c
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@@ -0,0 +1,179 @@
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@@ -0,0 +1,184 @@
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+// SPDX-License-Identifier: GPL-2.0+
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+/*
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+ * Broadcom BCM6368 mdiomux bus controller driver
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@ -154,7 +155,8 @@ Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
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+ if (!res)
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+ return -EINVAL;
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+
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+ /* Just ioremap, as this MDIO block is usually integrated into an
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+ /*
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+ * Just ioremap, as this MDIO block is usually integrated into an
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+ * Ethernet MAC controller register range
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+ */
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+ md->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
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@ -229,3 +231,7 @@ Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
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+ .remove = bcm6368_mdiomux_remove,
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+};
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+module_platform_driver(bcm6368_mdiomux_driver);
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+
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+MODULE_AUTHOR("Álvaro Fernández Rojas <noltari@gmail.com>");
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+MODULE_DESCRIPTION("BCM6368 mdiomux bus controller driver");
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+MODULE_LICENSE("GPL v2");
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