Merge branch 'this-is-a-patch-series-for-ethernet-driver-of-sunplus-s…

…p7021-soc'

Wells Lu says:

====================
This is a patch series for Ethernet driver of Sunplus SP7021 SoC.

Sunplus SP7021 is an ARM Cortex A7 (4 cores) based SoC. It integrates
many peripherals (ex: UART, I2C, SPI, SDIO, eMMC, USB, SD card and
etc.) into a single chip. It is designed for industrial control
applications.

Refer to:
https://sunplus.atlassian.net/wiki/spaces/doc/overview
https://tibbo.com/store/plus1.html
====================

Link: https://lore.kernel.org/r/1652004800-3212-1-git-send-email-wellslutw@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Documentation/devicetree/bindings/net/sunplus,sp7021-emac.yaml

@@ -0,0 +1,141 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/sunplus,sp7021-emac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sunplus SP7021 Dual Ethernet MAC Device Tree Bindings
+
+maintainers:
+  - Wells Lu <wellslutw@gmail.com>
+
+description: |
+  Sunplus SP7021 dual 10M/100M Ethernet MAC controller.
+  Device node of the controller has following properties.
+
+properties:
+  compatible:
+    const: sunplus,sp7021-emac
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  ethernet-ports:
+    type: object
+    description: Ethernet ports to PHY
+
+    properties:
+      "#address-cells":
+        const: 1
+
+      "#size-cells":
+        const: 0
+
+    patternProperties:
+      "^port@[0-1]$":
+        type: object
+        description: Port to PHY
+
+        properties:
+          reg:
+            minimum: 0
+            maximum: 1
+
+          phy-handle:
+            maxItems: 1
+
+          phy-mode:
+            maxItems: 1
+
+          nvmem-cells:
+            items:
+              - description: nvmem cell address of MAC address
+
+          nvmem-cell-names:
+            description: names corresponding to the nvmem cells
+            items:
+              - const: mac-address
+
+        required:
+          - reg
+          - phy-handle
+          - phy-mode
+          - nvmem-cells
+          - nvmem-cell-names
+
+  mdio:
+    $ref: mdio.yaml#
+    unevaluatedProperties: false
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - resets
+  - pinctrl-0
+  - pinctrl-names
+  - ethernet-ports
+  - mdio
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    ethernet@9c108000 {
+        compatible = "sunplus,sp7021-emac";
+        reg = <0x9c108000 0x400>;
+        interrupt-parent = <&intc>;
+        interrupts = <66 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&clkc 0xa7>;
+        resets = <&rstc 0x97>;
+        pinctrl-0 = <&emac_demo_board_v3_pins>;
+        pinctrl-names = "default";
+
+        ethernet-ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+                phy-handle = <&eth_phy0>;
+                phy-mode = "rmii";
+                nvmem-cells = <&mac_addr0>;
+                nvmem-cell-names = "mac-address";
+            };
+
+            port@1 {
+                reg = <1>;
+                phy-handle = <&eth_phy1>;
+                phy-mode = "rmii";
+                nvmem-cells = <&mac_addr1>;
+                nvmem-cell-names = "mac-address";
+            };
+        };
+
+        mdio {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            eth_phy0: ethernet-phy@0 {
+                reg = <0>;
+            };
+
+            eth_phy1: ethernet-phy@1 {
+                reg = <1>;
+            };
+        };
+    };
+...

MAINTAINERS

@@ -18908,6 +18908,14 @@ L:	netdev@vger.kernel.org
 S:	Maintained
 F:	drivers/net/ethernet/dlink/sundance.c
 
+SUNPLUS ETHERNET DRIVER
+M:	Wells Lu <wellslutw@gmail.com>
+L:	netdev@vger.kernel.org
+S:	Maintained
+W:	https://sunplus.atlassian.net/wiki/spaces/doc/overview
+F:	Documentation/devicetree/bindings/net/sunplus,sp7021-emac.yaml
+F:	drivers/net/ethernet/sunplus/
+
 SUNPLUS OCOTP DRIVER
 M:	Vincent Shih <vincent.sunplus@gmail.com>
 S:	Maintained

drivers/net/ethernet/Kconfig

@@ -179,6 +179,7 @@ source "drivers/net/ethernet/smsc/Kconfig"
 source "drivers/net/ethernet/socionext/Kconfig"
 source "drivers/net/ethernet/stmicro/Kconfig"
 source "drivers/net/ethernet/sun/Kconfig"
+source "drivers/net/ethernet/sunplus/Kconfig"
 source "drivers/net/ethernet/synopsys/Kconfig"
 source "drivers/net/ethernet/tehuti/Kconfig"
 source "drivers/net/ethernet/ti/Kconfig"

drivers/net/ethernet/Makefile

@@ -90,6 +90,7 @@ obj-$(CONFIG_NET_VENDOR_SMSC) += smsc/
 obj-$(CONFIG_NET_VENDOR_SOCIONEXT) += socionext/
 obj-$(CONFIG_NET_VENDOR_STMICRO) += stmicro/
 obj-$(CONFIG_NET_VENDOR_SUN) += sun/
+obj-$(CONFIG_NET_VENDOR_SUNPLUS) += sunplus/
 obj-$(CONFIG_NET_VENDOR_TEHUTI) += tehuti/
 obj-$(CONFIG_NET_VENDOR_TI) += ti/
 obj-$(CONFIG_NET_VENDOR_TOSHIBA) += toshiba/

drivers/net/ethernet/sunplus/Kconfig

@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Sunplus network device configuration
+#
+
+config NET_VENDOR_SUNPLUS
+	bool "Sunplus devices"
+	default y
+	depends on ARCH_SUNPLUS || COMPILE_TEST
+	help
+	  If you have a network (Ethernet) card belonging to this
+	  class, say Y here.
+
+	  Note that the answer to this question doesn't directly
+	  affect the kernel: saying N will just cause the configurator
+	  to skip all the questions about Sunplus cards. If you say Y,
+	  you will be asked for your specific card in the following
+	  questions.
+
+if NET_VENDOR_SUNPLUS
+
+config SP7021_EMAC
+	tristate "Sunplus Dual 10M/100M Ethernet devices"
+	depends on SOC_SP7021 || COMPILE_TEST
+	select PHYLIB
+	select COMMON_CLK_SP7021
+	select RESET_SUNPLUS
+	select NVMEM_SUNPLUS_OCOTP
+	help
+	  If you have Sunplus dual 10M/100M Ethernet devices, say Y.
+	  The network device creates two net-device interfaces.
+	  To compile this driver as a module, choose M here. The
+	  module will be called sp7021_emac.
+
+endif # NET_VENDOR_SUNPLUS

drivers/net/ethernet/sunplus/Makefile

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Sunplus network device drivers.
+#
+obj-$(CONFIG_SP7021_EMAC) += sp7021_emac.o
+sp7021_emac-objs := spl2sw_driver.o spl2sw_int.o spl2sw_desc.o spl2sw_mac.o spl2sw_mdio.o spl2sw_phy.o