bcm4908: backport brcmstb USB PHY driver changes

This includes BCM4908 support

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

1 files changed, 315 insertions, 0 deletions

diff --git a/target/linux/bcm4908/patches-5.4/086-v5.12-0003-dt-bindings-phy-brcm-brcmstb-usb-phy-convert-to-the-.patch b/target/linux/bcm4908/patches-5.4/086-v5.12-0003-dt-bindings-phy-brcm-brcmstb-usb-phy-convert-to-the-.patch
new file mode 100644
index 0000000000..1edd63ea5d
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.4/086-v5.12-0003-dt-bindings-phy-brcm-brcmstb-usb-phy-convert-to-the-.patch
@@ -0,0 +1,315 @@
+From b39069a482ade0c5e18c407c3218ba1aeed371b6 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Wed, 6 Jan 2021 21:58:36 +0100
+Subject: [PATCH] dt-bindings: phy: brcm, brcmstb-usb-phy: convert to the
+ json-schema
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Changes that require mentioning:
+1. interrupt-names
+   Name "wakeup" was changed to the "wake". It matches example and what
+   Linux driver looks for in the first place
+2. brcm,ipp and brcm,ioc
+   Both were described as booleans with 0 / 1 values. In examples they
+   were integers and Linux checks for int as well. Both got uint32.
+3. Added minimal description
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
+Reviewed-by: Rob Herring <robh@kernel.org>
+Link: https://lore.kernel.org/r/20210106205838.10964-1-zajec5@gmail.com
+Signed-off-by: Vinod Koul <vkoul@kernel.org>
+---
+ .../bindings/phy/brcm,brcmstb-usb-phy.txt     |  86 --------
+ .../bindings/phy/brcm,brcmstb-usb-phy.yaml    | 193 ++++++++++++++++++
+ 2 files changed, 193 insertions(+), 86 deletions(-)
+ delete mode 100644 Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
+ create mode 100644 Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.yaml
+
+--- a/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
++++ /dev/null
+@@ -1,86 +0,0 @@
+-Broadcom STB USB PHY
+-
+-Required properties:
+-- compatible: should be one of
+-	"brcm,brcmstb-usb-phy"
+-	"brcm,bcm7216-usb-phy"
+-	"brcm,bcm7211-usb-phy"
+-
+-- reg and reg-names properties requirements are specific to the
+-  compatible string.
+-  "brcm,brcmstb-usb-phy":
+-    - reg: 1 or 2 offset and length pairs. One for the base CTRL registers
+-           and an optional pair for systems with USB 3.x support
+-    - reg-names: not specified
+-  "brcm,bcm7216-usb-phy":
+-    - reg: 3 offset and length pairs for CTRL, XHCI_EC and XHCI_GBL
+-           registers
+-    - reg-names: "ctrl", "xhci_ec", "xhci_gbl"
+-  "brcm,bcm7211-usb-phy":
+-    - reg: 5 offset and length pairs for CTRL, XHCI_EC, XHCI_GBL,
+-           USB_PHY and USB_MDIO registers and an optional pair
+-	   for the BDC registers
+-    - reg-names: "ctrl", "xhci_ec", "xhci_gbl", "usb_phy", "usb_mdio", "bdc_ec"
+-
+-- #phy-cells: Shall be 1 as it expects one argument for setting
+-	      the type of the PHY. Possible values are:
+-	      - PHY_TYPE_USB2 for USB1.1/2.0 PHY
+-	      - PHY_TYPE_USB3 for USB3.x PHY
+-
+-Optional Properties:
+-- clocks : clock phandles.
+-- clock-names: String, clock name.
+-- interrupts: wakeup interrupt
+-- interrupt-names: "wakeup"
+-- brcm,ipp: Boolean, Invert Port Power.
+-  Possible values are: 0 (Don't invert), 1 (Invert)
+-- brcm,ioc: Boolean, Invert Over Current detection.
+-  Possible values are: 0 (Don't invert), 1 (Invert)
+-- dr_mode: String, PHY Device mode.
+-  Possible values are: "host", "peripheral ", "drd" or "typec-pd"
+-  If this property is not defined, the phy will default to "host" mode.
+-- brcm,syscon-piarbctl: phandle to syscon for handling config registers
+-NOTE: one or both of the following two properties must be set
+-- brcm,has-xhci: Boolean indicating the phy has an XHCI phy.
+-- brcm,has-eohci: Boolean indicating the phy has an EHCI/OHCI phy.
+-
+-
+-Example:
+-
+-usbphy_0: usb-phy@f0470200 {
+-	reg = <0xf0470200 0xb8>,
+-		<0xf0471940 0x6c0>;
+-	compatible = "brcm,brcmstb-usb-phy";
+-	#phy-cells = <1>;
+-	dr_mode = "host"
+-	brcm,ioc = <1>;
+-	brcm,ipp = <1>;
+-	brcm,has-xhci;
+-	brcm,has-eohci;
+-	clocks = <&usb20>, <&usb30>;
+-	clock-names = "sw_usb", "sw_usb3";
+-};
+-
+-usb-phy@29f0200 {
+-	reg = <0x29f0200 0x200>,
+-		<0x29c0880 0x30>,
+-		<0x29cc100 0x534>,
+-		<0x2808000 0x24>,
+-		<0x2980080 0x8>;
+-	reg-names = "ctrl",
+-		"xhci_ec",
+-		"xhci_gbl",
+-		"usb_phy",
+-		"usb_mdio";
+-	brcm,ioc = <0x0>;
+-	brcm,ipp = <0x0>;
+-	compatible = "brcm,bcm7211-usb-phy";
+-	interrupts = <0x30>;
+-	interrupt-parent = <&vpu_intr1_nosec_intc>;
+-	interrupt-names = "wake";
+-	#phy-cells = <0x1>;
+-	brcm,has-xhci;
+-	syscon-piarbctl = <&syscon_piarbctl>;
+-	clocks = <&scmi_clk 256>;
+-	clock-names = "sw_usb";
+-};
+--- /dev/null
++++ b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.yaml
+@@ -0,0 +1,193 @@
++# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
++%YAML 1.2
++---
++$id: http://devicetree.org/schemas/phy/brcm,brcmstb-usb-phy.yaml#
++$schema: http://devicetree.org/meta-schemas/core.yaml#
++
++title: Broadcom STB USB PHY
++
++description: Broadcom's PHY that handles EHCI/OHCI and/or XHCI
++
++maintainers:
++  - Al Cooper <alcooperx@gmail.com>
++  - Rafał Miłecki <rafal@milecki.pl>
++
++properties:
++  compatible:
++    enum:
++      - brcm,bcm7211-usb-phy
++      - brcm,bcm7216-usb-phy
++      - brcm,brcmstb-usb-phy
++
++  reg:
++    minItems: 1
++    maxItems: 6
++    items:
++      - description: the base CTRL register
++      - description: XHCI EC register
++      - description: XHCI GBL register
++      - description: USB PHY register
++      - description: USB MDIO register
++      - description: BDC register
++
++  reg-names:
++    minItems: 1
++    maxItems: 6
++    items:
++      - const: ctrl
++      - const: xhci_ec
++      - const: xhci_gbl
++      - const: usb_phy
++      - const: usb_mdio
++      - const: bdc_ec
++
++  clocks:
++    minItems: 1
++    maxItems: 2
++
++  clock-names:
++    minItems: 1
++    maxItems: 2
++    items:
++      - const: sw_usb
++      - const: sw_usb3
++
++  interrupts:
++    description: wakeup interrupt
++
++  interrupt-names:
++    const: wake
++
++  brcm,ipp:
++    $ref: /schemas/types.yaml#/definitions/uint32
++    description: Invert Port Power
++    minimum: 0
++    maximum: 1
++
++  brcm,ioc:
++    $ref: /schemas/types.yaml#/definitions/uint32
++    description: Invert Over Current detection
++    minimum: 0
++    maximum: 1
++
++  dr_mode:
++    description: PHY Device mode. If this property is not defined, the PHY will
++      default to "host" mode.
++    enum:
++      - host
++      - peripheral
++      - drd
++      - typec-pd
++
++  brcm,syscon-piarbctl:
++    description: phandle to syscon for handling config registers
++    $ref: /schemas/types.yaml#/definitions/phandle
++
++  brcm,has-xhci:
++    description: Indicates the PHY has an XHCI PHY.
++    type: boolean
++
++  brcm,has-eohci:
++    description: Indicates the PHY has an EHCI/OHCI PHY.
++    type: boolean
++
++  "#phy-cells":
++    description: |
++      Cell allows setting the type of the PHY. Possible values are:
++      - PHY_TYPE_USB2 for USB1.1/2.0 PHY
++      - PHY_TYPE_USB3 for USB3.x PHY
++    const: 1
++
++required:
++  - reg
++  - "#phy-cells"
++
++anyOf:
++  - required:
++      - brcm,has-xhci
++  - required:
++      - brcm,has-eohci
++
++allOf:
++  - if:
++      properties:
++        compatible:
++          contains:
++            const: brcm,brcmstb-usb-phy
++    then:
++      properties:
++        reg:
++          minItems: 1
++          maxItems: 2
++  - if:
++      properties:
++        compatible:
++          contains:
++            const: brcm,bcm7211-usb-phy
++    then:
++      properties:
++        reg:
++          minItems: 5
++          maxItems: 6
++        reg-names:
++          minItems: 5
++          maxItems: 6
++  - if:
++      properties:
++        compatible:
++          contains:
++            const: brcm,bcm7216-usb-phy
++    then:
++      properties:
++        reg:
++          minItems: 3
++          maxItems: 3
++        reg-names:
++          minItems: 3
++          maxItems: 3
++
++additionalProperties: false
++
++examples:
++  - |
++    #include <dt-bindings/phy/phy.h>
++
++    usb-phy@f0470200 {
++        compatible = "brcm,brcmstb-usb-phy";
++        reg = <0xf0470200 0xb8>,
++              <0xf0471940 0x6c0>;
++        #phy-cells = <1>;
++        dr_mode = "host";
++        brcm,ioc = <1>;
++        brcm,ipp = <1>;
++        brcm,has-xhci;
++        brcm,has-eohci;
++        clocks = <&usb20>, <&usb30>;
++        clock-names = "sw_usb", "sw_usb3";
++    };
++  - |
++    #include <dt-bindings/phy/phy.h>
++
++    usb-phy@29f0200 {
++        compatible = "brcm,bcm7211-usb-phy";
++        reg = <0x29f0200 0x200>,
++              <0x29c0880 0x30>,
++              <0x29cc100 0x534>,
++              <0x2808000 0x24>,
++              <0x2980080 0x8>;
++        reg-names = "ctrl",
++            "xhci_ec",
++            "xhci_gbl",
++            "usb_phy",
++            "usb_mdio";
++        brcm,ioc = <0x0>;
++        brcm,ipp = <0x0>;
++        interrupts = <0x30>;
++        interrupt-parent = <&vpu_intr1_nosec_intc>;
++        interrupt-names = "wake";
++        #phy-cells = <0x1>;
++        brcm,has-xhci;
++        brcm,syscon-piarbctl = <&syscon_piarbctl>;
++        clocks = <&scmi_clk 256>;
++        clock-names = "sw_usb";
++    };