forked from luck/tmp_suning_uos_patched
pinctrl: sh-pfc: Updates for v4.20 (take three)
- Add support for the new RZ/N1D (R9A06G032) and RZ/N1S (R9A06G033) SoCs, - Add INTC-EX pin groups on R-Car E3. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQ9qaHoIs/1I4cXmEiKwlD9ZEnxcAUCW7dQmQAKCRCKwlD9ZEnx cB04AQCj1PoCEotqH9TGaGeVXal35LUMP279vz3HoJweY0DF2AD/QKd/jC2mHz/c EypfJAvBvckw9AsdfNSacrCIdMNg7gE= =gtgr -----END PGP SIGNATURE----- Merge tag 'sh-pfc-for-v4.20-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel pinctrl: sh-pfc: Updates for v4.20 (take three) - Add support for the new RZ/N1D (R9A06G032) and RZ/N1S (R9A06G033) SoCs, - Add INTC-EX pin groups on R-Car E3.
This commit is contained in:
commit
b0b378acde
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@ -0,0 +1,153 @@
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Renesas RZ/N1 SoC Pinctrl node description.
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Pin controller node
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-------------------
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Required properties:
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- compatible: SoC-specific compatible string "renesas,<soc-specific>-pinctrl"
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followed by "renesas,rzn1-pinctrl" as fallback. The SoC-specific compatible
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strings must be one of:
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"renesas,r9a06g032-pinctrl" for RZ/N1D
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"renesas,r9a06g033-pinctrl" for RZ/N1S
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- reg: Address base and length of the memory area where the pin controller
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hardware is mapped to.
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- clocks: phandle for the clock, see the description of clock-names below.
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- clock-names: Contains the name of the clock:
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"bus", the bus clock, sometimes described as pclk, for register accesses.
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Example:
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pinctrl: pin-controller@40067000 {
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compatible = "renesas,r9a06g032-pinctrl", "renesas,rzn1-pinctrl";
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reg = <0x40067000 0x1000>, <0x51000000 0x480>;
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clocks = <&sysctrl R9A06G032_HCLK_PINCONFIG>;
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clock-names = "bus";
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};
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Sub-nodes
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---------
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The child nodes of the pin controller node describe a pin multiplexing
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function.
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- Pin multiplexing sub-nodes:
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A pin multiplexing sub-node describes how to configure a set of
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(or a single) pin in some desired alternate function mode.
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A single sub-node may define several pin configurations.
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Please refer to pinctrl-bindings.txt to get to know more on generic
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pin properties usage.
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The allowed generic formats for a pin multiplexing sub-node are the
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following ones:
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node-1 {
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pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
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GENERIC_PINCONFIG;
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};
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node-2 {
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sub-node-1 {
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pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
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GENERIC_PINCONFIG;
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};
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sub-node-2 {
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pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
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GENERIC_PINCONFIG;
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};
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...
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sub-node-n {
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pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
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GENERIC_PINCONFIG;
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};
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};
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node-3 {
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pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
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GENERIC_PINCONFIG;
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sub-node-1 {
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pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
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GENERIC_PINCONFIG;
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};
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...
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sub-node-n {
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pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
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GENERIC_PINCONFIG;
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};
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};
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Use the latter two formats when pins part of the same logical group need to
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have different generic pin configuration flags applied. Note that the generic
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pinconfig in node-3 does not apply to the sub-nodes.
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Client sub-nodes shall refer to pin multiplexing sub-nodes using the phandle
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of the most external one.
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Eg.
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client-1 {
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...
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pinctrl-0 = <&node-1>;
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...
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};
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client-2 {
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...
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pinctrl-0 = <&node-2>;
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...
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};
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Required properties:
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- pinmux:
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integer array representing pin number and pin multiplexing configuration.
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When a pin has to be configured in alternate function mode, use this
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property to identify the pin by its global index, and provide its
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alternate function configuration number along with it.
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When multiple pins are required to be configured as part of the same
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alternate function they shall be specified as members of the same
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argument list of a single "pinmux" property.
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Integers values in the "pinmux" argument list are assembled as:
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(PIN | MUX_FUNC << 8)
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where PIN directly corresponds to the pl_gpio pin number and MUX_FUNC is
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one of the alternate function identifiers defined in:
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<include/dt-bindings/pinctrl/rzn1-pinctrl.h>
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These identifiers collapse the IO Multiplex Configuration Level 1 and
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Level 2 numbers that are detailed in the hardware reference manual into a
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single number. The identifiers for Level 2 are simply offset by 10.
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Additional identifiers are provided to specify the MDIO source peripheral.
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Optional generic pinconf properties:
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- bias-disable - disable any pin bias
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- bias-pull-up - pull up the pin with 50 KOhm
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- bias-pull-down - pull down the pin with 50 KOhm
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- bias-high-impedance - high impedance mode
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- drive-strength - sink or source at most 4, 6, 8 or 12 mA
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Example:
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A serial communication interface with a TX output pin and an RX input pin.
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&pinctrl {
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pins_uart0: pins_uart0 {
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pinmux = <
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RZN1_PINMUX(103, RZN1_FUNC_UART0_I) /* UART0_TXD */
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RZN1_PINMUX(104, RZN1_FUNC_UART0_I) /* UART0_RXD */
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>;
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};
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};
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Example 2:
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Here we set the pull up on the RXD pin of the UART.
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&pinctrl {
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pins_uart0: pins_uart0 {
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pinmux = <RZN1_PINMUX(103, RZN1_FUNC_UART0_I)>; /* TXD */
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pins_uart6_rx {
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pinmux = <RZN1_PINMUX(104, RZN1_FUNC_UART0_I)>; /* RXD */
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bias-pull-up;
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};
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};
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};
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@ -195,6 +195,16 @@ config PINCTRL_RZA1
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help
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This selects pinctrl driver for Renesas RZ/A1 platforms.
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config PINCTRL_RZN1
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bool "Renesas RZ/N1 pinctrl driver"
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depends on OF
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depends on ARCH_RZN1 || COMPILE_TEST
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select GENERIC_PINCTRL_GROUPS
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select GENERIC_PINMUX_FUNCTIONS
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select GENERIC_PINCONF
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help
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This selects pinctrl driver for Renesas RZ/N1 devices.
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config PINCTRL_SINGLE
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tristate "One-register-per-pin type device tree based pinctrl driver"
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depends on OF
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@ -27,6 +27,7 @@ obj-$(CONFIG_PINCTRL_PIC32) += pinctrl-pic32.o
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obj-$(CONFIG_PINCTRL_PISTACHIO) += pinctrl-pistachio.o
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obj-$(CONFIG_PINCTRL_ROCKCHIP) += pinctrl-rockchip.o
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obj-$(CONFIG_PINCTRL_RZA1) += pinctrl-rza1.o
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obj-$(CONFIG_PINCTRL_RZN1) += pinctrl-rzn1.o
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obj-$(CONFIG_PINCTRL_SINGLE) += pinctrl-single.o
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obj-$(CONFIG_PINCTRL_SIRF) += sirf/
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obj-$(CONFIG_PINCTRL_SX150X) += pinctrl-sx150x.o
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948
drivers/pinctrl/pinctrl-rzn1.c
Normal file
948
drivers/pinctrl/pinctrl-rzn1.c
Normal file
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@ -0,0 +1,948 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2014-2018 Renesas Electronics Europe Limited
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*
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* Phil Edworthy <phil.edworthy@renesas.com>
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* Based on a driver originally written by Michel Pollet at Renesas.
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*/
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#include <dt-bindings/pinctrl/rzn1-pinctrl.h>
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#include <linux/clk.h>
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#include <linux/device.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/pinctrl/pinconf-generic.h>
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#include <linux/pinctrl/pinctrl.h>
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#include <linux/pinctrl/pinmux.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include "core.h"
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#include "pinconf.h"
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#include "pinctrl-utils.h"
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/* Field positions and masks in the pinmux registers */
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#define RZN1_L1_PIN_DRIVE_STRENGTH 10
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#define RZN1_L1_PIN_DRIVE_STRENGTH_4MA 0
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#define RZN1_L1_PIN_DRIVE_STRENGTH_6MA 1
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#define RZN1_L1_PIN_DRIVE_STRENGTH_8MA 2
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#define RZN1_L1_PIN_DRIVE_STRENGTH_12MA 3
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#define RZN1_L1_PIN_PULL 8
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#define RZN1_L1_PIN_PULL_NONE 0
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#define RZN1_L1_PIN_PULL_UP 1
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#define RZN1_L1_PIN_PULL_DOWN 3
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#define RZN1_L1_FUNCTION 0
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#define RZN1_L1_FUNC_MASK 0xf
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#define RZN1_L1_FUNCTION_L2 0xf
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/*
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* The hardware manual describes two levels of multiplexing, but it's more
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* logical to think of the hardware as three levels, with level 3 consisting of
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* the multiplexing for Ethernet MDIO signals.
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*
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* Level 1 functions go from 0 to 9, with level 1 function '15' (0xf) specifying
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* that level 2 functions are used instead. Level 2 has a lot more options,
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* going from 0 to 61. Level 3 allows selection of MDIO functions which can be
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* floating, or one of seven internal peripherals. Unfortunately, there are two
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* level 2 functions that can select MDIO, and two MDIO channels so we have four
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* sets of level 3 functions.
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*
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* For this driver, we've compounded the numbers together, so:
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* 0 to 9 is level 1
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* 10 to 71 is 10 + level 2 number
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* 72 to 79 is 72 + MDIO0 source for level 2 MDIO function.
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* 80 to 87 is 80 + MDIO0 source for level 2 MDIO_E1 function.
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* 88 to 95 is 88 + MDIO1 source for level 2 MDIO function.
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* 96 to 103 is 96 + MDIO1 source for level 2 MDIO_E1 function.
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* Examples:
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* Function 28 corresponds UART0
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* Function 73 corresponds to MDIO0 to GMAC0
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*
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* There are 170 configurable pins (called PL_GPIO in the datasheet).
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*/
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/*
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* Structure detailing the HW registers on the RZ/N1 devices.
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* Both the Level 1 mux registers and Level 2 mux registers have the same
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* structure. The only difference is that Level 2 has additional MDIO registers
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* at the end.
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*/
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struct rzn1_pinctrl_regs {
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u32 conf[170];
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u32 pad0[86];
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u32 status_protect; /* 0x400 */
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/* MDIO mux registers, level2 only */
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u32 l2_mdio[2];
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};
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/**
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* struct rzn1_pmx_func - describes rzn1 pinmux functions
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* @name: the name of this specific function
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* @groups: corresponding pin groups
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* @num_groups: the number of groups
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*/
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struct rzn1_pmx_func {
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const char *name;
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const char **groups;
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unsigned int num_groups;
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};
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/**
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* struct rzn1_pin_group - describes an rzn1 pin group
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* @name: the name of this specific pin group
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* @func: the name of the function selected by this group
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* @npins: the number of pins in this group array, i.e. the number of
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* elements in .pins so we can iterate over that array
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* @pins: array of pins. Needed due to pinctrl_ops.get_group_pins()
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* @pin_ids: array of pin_ids, i.e. the value used to select the mux
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*/
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struct rzn1_pin_group {
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const char *name;
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const char *func;
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unsigned int npins;
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unsigned int *pins;
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u8 *pin_ids;
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};
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struct rzn1_pinctrl {
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struct device *dev;
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struct clk *clk;
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struct pinctrl_dev *pctl;
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struct rzn1_pinctrl_regs __iomem *lev1;
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struct rzn1_pinctrl_regs __iomem *lev2;
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u32 lev1_protect_phys;
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u32 lev2_protect_phys;
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u32 mdio_func[2];
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struct rzn1_pin_group *groups;
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unsigned int ngroups;
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struct rzn1_pmx_func *functions;
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unsigned int nfunctions;
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};
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#define RZN1_PINS_PROP "pinmux"
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#define RZN1_PIN(pin) PINCTRL_PIN(pin, "pl_gpio"#pin)
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static const struct pinctrl_pin_desc rzn1_pins[] = {
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RZN1_PIN(0), RZN1_PIN(1), RZN1_PIN(2), RZN1_PIN(3), RZN1_PIN(4),
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RZN1_PIN(5), RZN1_PIN(6), RZN1_PIN(7), RZN1_PIN(8), RZN1_PIN(9),
|
||||
RZN1_PIN(10), RZN1_PIN(11), RZN1_PIN(12), RZN1_PIN(13), RZN1_PIN(14),
|
||||
RZN1_PIN(15), RZN1_PIN(16), RZN1_PIN(17), RZN1_PIN(18), RZN1_PIN(19),
|
||||
RZN1_PIN(20), RZN1_PIN(21), RZN1_PIN(22), RZN1_PIN(23), RZN1_PIN(24),
|
||||
RZN1_PIN(25), RZN1_PIN(26), RZN1_PIN(27), RZN1_PIN(28), RZN1_PIN(29),
|
||||
RZN1_PIN(30), RZN1_PIN(31), RZN1_PIN(32), RZN1_PIN(33), RZN1_PIN(34),
|
||||
RZN1_PIN(35), RZN1_PIN(36), RZN1_PIN(37), RZN1_PIN(38), RZN1_PIN(39),
|
||||
RZN1_PIN(40), RZN1_PIN(41), RZN1_PIN(42), RZN1_PIN(43), RZN1_PIN(44),
|
||||
RZN1_PIN(45), RZN1_PIN(46), RZN1_PIN(47), RZN1_PIN(48), RZN1_PIN(49),
|
||||
RZN1_PIN(50), RZN1_PIN(51), RZN1_PIN(52), RZN1_PIN(53), RZN1_PIN(54),
|
||||
RZN1_PIN(55), RZN1_PIN(56), RZN1_PIN(57), RZN1_PIN(58), RZN1_PIN(59),
|
||||
RZN1_PIN(60), RZN1_PIN(61), RZN1_PIN(62), RZN1_PIN(63), RZN1_PIN(64),
|
||||
RZN1_PIN(65), RZN1_PIN(66), RZN1_PIN(67), RZN1_PIN(68), RZN1_PIN(69),
|
||||
RZN1_PIN(70), RZN1_PIN(71), RZN1_PIN(72), RZN1_PIN(73), RZN1_PIN(74),
|
||||
RZN1_PIN(75), RZN1_PIN(76), RZN1_PIN(77), RZN1_PIN(78), RZN1_PIN(79),
|
||||
RZN1_PIN(80), RZN1_PIN(81), RZN1_PIN(82), RZN1_PIN(83), RZN1_PIN(84),
|
||||
RZN1_PIN(85), RZN1_PIN(86), RZN1_PIN(87), RZN1_PIN(88), RZN1_PIN(89),
|
||||
RZN1_PIN(90), RZN1_PIN(91), RZN1_PIN(92), RZN1_PIN(93), RZN1_PIN(94),
|
||||
RZN1_PIN(95), RZN1_PIN(96), RZN1_PIN(97), RZN1_PIN(98), RZN1_PIN(99),
|
||||
RZN1_PIN(100), RZN1_PIN(101), RZN1_PIN(102), RZN1_PIN(103),
|
||||
RZN1_PIN(104), RZN1_PIN(105), RZN1_PIN(106), RZN1_PIN(107),
|
||||
RZN1_PIN(108), RZN1_PIN(109), RZN1_PIN(110), RZN1_PIN(111),
|
||||
RZN1_PIN(112), RZN1_PIN(113), RZN1_PIN(114), RZN1_PIN(115),
|
||||
RZN1_PIN(116), RZN1_PIN(117), RZN1_PIN(118), RZN1_PIN(119),
|
||||
RZN1_PIN(120), RZN1_PIN(121), RZN1_PIN(122), RZN1_PIN(123),
|
||||
RZN1_PIN(124), RZN1_PIN(125), RZN1_PIN(126), RZN1_PIN(127),
|
||||
RZN1_PIN(128), RZN1_PIN(129), RZN1_PIN(130), RZN1_PIN(131),
|
||||
RZN1_PIN(132), RZN1_PIN(133), RZN1_PIN(134), RZN1_PIN(135),
|
||||
RZN1_PIN(136), RZN1_PIN(137), RZN1_PIN(138), RZN1_PIN(139),
|
||||
RZN1_PIN(140), RZN1_PIN(141), RZN1_PIN(142), RZN1_PIN(143),
|
||||
RZN1_PIN(144), RZN1_PIN(145), RZN1_PIN(146), RZN1_PIN(147),
|
||||
RZN1_PIN(148), RZN1_PIN(149), RZN1_PIN(150), RZN1_PIN(151),
|
||||
RZN1_PIN(152), RZN1_PIN(153), RZN1_PIN(154), RZN1_PIN(155),
|
||||
RZN1_PIN(156), RZN1_PIN(157), RZN1_PIN(158), RZN1_PIN(159),
|
||||
RZN1_PIN(160), RZN1_PIN(161), RZN1_PIN(162), RZN1_PIN(163),
|
||||
RZN1_PIN(164), RZN1_PIN(165), RZN1_PIN(166), RZN1_PIN(167),
|
||||
RZN1_PIN(168), RZN1_PIN(169),
|
||||
};
|
||||
|
||||
enum {
|
||||
LOCK_LEVEL1 = 0x1,
|
||||
LOCK_LEVEL2 = 0x2,
|
||||
LOCK_ALL = LOCK_LEVEL1 | LOCK_LEVEL2,
|
||||
};
|
||||
|
||||
static void rzn1_hw_set_lock(struct rzn1_pinctrl *ipctl, u8 lock, u8 value)
|
||||
{
|
||||
/*
|
||||
* The pinmux configuration is locked by writing the physical address of
|
||||
* the status_protect register to itself. It is unlocked by writing the
|
||||
* address | 1.
|
||||
*/
|
||||
if (lock & LOCK_LEVEL1) {
|
||||
u32 val = ipctl->lev1_protect_phys | !(value & LOCK_LEVEL1);
|
||||
|
||||
writel(val, &ipctl->lev1->status_protect);
|
||||
}
|
||||
|
||||
if (lock & LOCK_LEVEL2) {
|
||||
u32 val = ipctl->lev2_protect_phys | !(value & LOCK_LEVEL2);
|
||||
|
||||
writel(val, &ipctl->lev2->status_protect);
|
||||
}
|
||||
}
|
||||
|
||||
static void rzn1_pinctrl_mdio_select(struct rzn1_pinctrl *ipctl, int mdio,
|
||||
u32 func)
|
||||
{
|
||||
if (ipctl->mdio_func[mdio] >= 0 && ipctl->mdio_func[mdio] != func)
|
||||
dev_warn(ipctl->dev, "conflicting setting for mdio%d!\n", mdio);
|
||||
ipctl->mdio_func[mdio] = func;
|
||||
|
||||
dev_dbg(ipctl->dev, "setting mdio%d to %u\n", mdio, func);
|
||||
|
||||
writel(func, &ipctl->lev2->l2_mdio[mdio]);
|
||||
}
|
||||
|
||||
/*
|
||||
* Using a composite pin description, set the hardware pinmux registers
|
||||
* with the corresponding values.
|
||||
* Make sure to unlock write protection and reset it afterward.
|
||||
*
|
||||
* NOTE: There is no protection for potential concurrency, it is assumed these
|
||||
* calls are serialized already.
|
||||
*/
|
||||
static int rzn1_set_hw_pin_func(struct rzn1_pinctrl *ipctl, unsigned int pin,
|
||||
u32 pin_config, u8 use_locks)
|
||||
{
|
||||
u32 l1_cache;
|
||||
u32 l2_cache;
|
||||
u32 l1;
|
||||
u32 l2;
|
||||
|
||||
/* Level 3 MDIO multiplexing */
|
||||
if (pin_config >= RZN1_FUNC_MDIO0_HIGHZ &&
|
||||
pin_config <= RZN1_FUNC_MDIO1_E1_SWITCH) {
|
||||
int mdio_channel;
|
||||
u32 mdio_func;
|
||||
|
||||
if (pin_config <= RZN1_FUNC_MDIO1_HIGHZ)
|
||||
mdio_channel = 0;
|
||||
else
|
||||
mdio_channel = 1;
|
||||
|
||||
/* Get MDIO func, and convert the func to the level 2 number */
|
||||
if (pin_config <= RZN1_FUNC_MDIO0_SWITCH) {
|
||||
mdio_func = pin_config - RZN1_FUNC_MDIO0_HIGHZ;
|
||||
pin_config = RZN1_FUNC_ETH_MDIO;
|
||||
} else if (pin_config <= RZN1_FUNC_MDIO0_E1_SWITCH) {
|
||||
mdio_func = pin_config - RZN1_FUNC_MDIO0_E1_HIGHZ;
|
||||
pin_config = RZN1_FUNC_ETH_MDIO_E1;
|
||||
} else if (pin_config <= RZN1_FUNC_MDIO1_SWITCH) {
|
||||
mdio_func = pin_config - RZN1_FUNC_MDIO1_HIGHZ;
|
||||
pin_config = RZN1_FUNC_ETH_MDIO;
|
||||
} else {
|
||||
mdio_func = pin_config - RZN1_FUNC_MDIO1_E1_HIGHZ;
|
||||
pin_config = RZN1_FUNC_ETH_MDIO_E1;
|
||||
}
|
||||
rzn1_pinctrl_mdio_select(ipctl, mdio_channel, mdio_func);
|
||||
}
|
||||
|
||||
/* Note here, we do not allow anything past the MDIO Mux values */
|
||||
if (pin >= ARRAY_SIZE(ipctl->lev1->conf) ||
|
||||
pin_config >= RZN1_FUNC_MDIO0_HIGHZ)
|
||||
return -EINVAL;
|
||||
|
||||
l1 = readl(&ipctl->lev1->conf[pin]);
|
||||
l1_cache = l1;
|
||||
l2 = readl(&ipctl->lev2->conf[pin]);
|
||||
l2_cache = l2;
|
||||
|
||||
dev_dbg(ipctl->dev, "setting func for pin %u to %u\n", pin, pin_config);
|
||||
|
||||
l1 &= ~(RZN1_L1_FUNC_MASK << RZN1_L1_FUNCTION);
|
||||
|
||||
if (pin_config < RZN1_FUNC_L2_OFFSET) {
|
||||
l1 |= (pin_config << RZN1_L1_FUNCTION);
|
||||
} else {
|
||||
l1 |= (RZN1_L1_FUNCTION_L2 << RZN1_L1_FUNCTION);
|
||||
|
||||
l2 = pin_config - RZN1_FUNC_L2_OFFSET;
|
||||
}
|
||||
|
||||
/* If either configuration changes, we update both anyway */
|
||||
if (l1 != l1_cache || l2 != l2_cache) {
|
||||
writel(l1, &ipctl->lev1->conf[pin]);
|
||||
writel(l2, &ipctl->lev2->conf[pin]);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct rzn1_pin_group *rzn1_pinctrl_find_group_by_name(
|
||||
const struct rzn1_pinctrl *ipctl, const char *name)
|
||||
{
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0; i < ipctl->ngroups; i++) {
|
||||
if (!strcmp(ipctl->groups[i].name, name))
|
||||
return &ipctl->groups[i];
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static int rzn1_get_groups_count(struct pinctrl_dev *pctldev)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
|
||||
|
||||
return ipctl->ngroups;
|
||||
}
|
||||
|
||||
static const char *rzn1_get_group_name(struct pinctrl_dev *pctldev,
|
||||
unsigned int selector)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
|
||||
|
||||
return ipctl->groups[selector].name;
|
||||
}
|
||||
|
||||
static int rzn1_get_group_pins(struct pinctrl_dev *pctldev,
|
||||
unsigned int selector, const unsigned int **pins,
|
||||
unsigned int *npins)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
|
||||
|
||||
if (selector >= ipctl->ngroups)
|
||||
return -EINVAL;
|
||||
|
||||
*pins = ipctl->groups[selector].pins;
|
||||
*npins = ipctl->groups[selector].npins;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* This function is called for each pinctl 'Function' node.
|
||||
* Sub-nodes can be used to describe multiple 'Groups' for the 'Function'
|
||||
* If there aren't any sub-nodes, the 'Group' is essentially the 'Function'.
|
||||
* Each 'Group' uses pinmux = <...> to detail the pins and data used to select
|
||||
* the functionality. Each 'Group' has optional pin configurations that apply
|
||||
* to all pins in the 'Group'.
|
||||
*/
|
||||
static int rzn1_dt_node_to_map_one(struct pinctrl_dev *pctldev,
|
||||
struct device_node *np,
|
||||
struct pinctrl_map **map,
|
||||
unsigned int *num_maps)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
|
||||
const struct rzn1_pin_group *grp;
|
||||
unsigned long *configs = NULL;
|
||||
unsigned int reserved_maps = *num_maps;
|
||||
unsigned int num_configs = 0;
|
||||
unsigned int reserve = 1;
|
||||
int ret;
|
||||
|
||||
dev_dbg(ipctl->dev, "processing node %pOF\n", np);
|
||||
|
||||
grp = rzn1_pinctrl_find_group_by_name(ipctl, np->name);
|
||||
if (!grp) {
|
||||
dev_err(ipctl->dev, "unable to find group for node %pOF\n", np);
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* Get the group's pin configuration */
|
||||
ret = pinconf_generic_parse_dt_config(np, pctldev, &configs,
|
||||
&num_configs);
|
||||
if (ret < 0) {
|
||||
dev_err(ipctl->dev, "%pOF: could not parse property\n", np);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (num_configs)
|
||||
reserve++;
|
||||
|
||||
/* Increase the number of maps to cover this group */
|
||||
ret = pinctrl_utils_reserve_map(pctldev, map, &reserved_maps, num_maps,
|
||||
reserve);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
|
||||
/* Associate the group with the function */
|
||||
ret = pinctrl_utils_add_map_mux(pctldev, map, &reserved_maps, num_maps,
|
||||
grp->name, grp->func);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
|
||||
if (num_configs) {
|
||||
/* Associate the group's pin configuration with the group */
|
||||
ret = pinctrl_utils_add_map_configs(pctldev, map,
|
||||
&reserved_maps, num_maps, grp->name,
|
||||
configs, num_configs,
|
||||
PIN_MAP_TYPE_CONFIGS_GROUP);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
}
|
||||
|
||||
dev_dbg(pctldev->dev, "maps: function %s group %s (%d pins)\n",
|
||||
grp->func, grp->name, grp->npins);
|
||||
|
||||
out:
|
||||
kfree(configs);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rzn1_dt_node_to_map(struct pinctrl_dev *pctldev,
|
||||
struct device_node *np,
|
||||
struct pinctrl_map **map,
|
||||
unsigned int *num_maps)
|
||||
{
|
||||
struct device_node *child;
|
||||
int ret;
|
||||
|
||||
*map = NULL;
|
||||
*num_maps = 0;
|
||||
|
||||
ret = rzn1_dt_node_to_map_one(pctldev, np, map, num_maps);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
for_each_child_of_node(np, child) {
|
||||
ret = rzn1_dt_node_to_map_one(pctldev, child, map, num_maps);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct pinctrl_ops rzn1_pctrl_ops = {
|
||||
.get_groups_count = rzn1_get_groups_count,
|
||||
.get_group_name = rzn1_get_group_name,
|
||||
.get_group_pins = rzn1_get_group_pins,
|
||||
.dt_node_to_map = rzn1_dt_node_to_map,
|
||||
.dt_free_map = pinctrl_utils_free_map,
|
||||
};
|
||||
|
||||
static int rzn1_pmx_get_funcs_count(struct pinctrl_dev *pctldev)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
|
||||
|
||||
return ipctl->nfunctions;
|
||||
}
|
||||
|
||||
static const char *rzn1_pmx_get_func_name(struct pinctrl_dev *pctldev,
|
||||
unsigned int selector)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
|
||||
|
||||
return ipctl->functions[selector].name;
|
||||
}
|
||||
|
||||
static int rzn1_pmx_get_groups(struct pinctrl_dev *pctldev,
|
||||
unsigned int selector,
|
||||
const char * const **groups,
|
||||
unsigned int * const num_groups)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
|
||||
|
||||
*groups = ipctl->functions[selector].groups;
|
||||
*num_groups = ipctl->functions[selector].num_groups;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rzn1_set_mux(struct pinctrl_dev *pctldev, unsigned int selector,
|
||||
unsigned int group)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
|
||||
struct rzn1_pin_group *grp = &ipctl->groups[group];
|
||||
unsigned int i, grp_pins = grp->npins;
|
||||
|
||||
dev_dbg(ipctl->dev, "set mux %s(%d) group %s(%d)\n",
|
||||
ipctl->functions[selector].name, selector, grp->name, group);
|
||||
|
||||
rzn1_hw_set_lock(ipctl, LOCK_ALL, LOCK_ALL);
|
||||
for (i = 0; i < grp_pins; i++)
|
||||
rzn1_set_hw_pin_func(ipctl, grp->pins[i], grp->pin_ids[i], 0);
|
||||
rzn1_hw_set_lock(ipctl, LOCK_ALL, 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct pinmux_ops rzn1_pmx_ops = {
|
||||
.get_functions_count = rzn1_pmx_get_funcs_count,
|
||||
.get_function_name = rzn1_pmx_get_func_name,
|
||||
.get_function_groups = rzn1_pmx_get_groups,
|
||||
.set_mux = rzn1_set_mux,
|
||||
};
|
||||
|
||||
static int rzn1_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
|
||||
unsigned long *config)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
|
||||
enum pin_config_param param = pinconf_to_config_param(*config);
|
||||
const u32 reg_drive[4] = { 4, 6, 8, 12 };
|
||||
u32 pull, drive, l1mux;
|
||||
u32 l1, l2, arg = 0;
|
||||
|
||||
if (pin >= ARRAY_SIZE(ipctl->lev1->conf))
|
||||
return -EINVAL;
|
||||
|
||||
l1 = readl(&ipctl->lev1->conf[pin]);
|
||||
|
||||
l1mux = l1 & RZN1_L1_FUNC_MASK;
|
||||
pull = (l1 >> RZN1_L1_PIN_PULL) & 0x3;
|
||||
drive = (l1 >> RZN1_L1_PIN_DRIVE_STRENGTH) & 0x3;
|
||||
|
||||
switch (param) {
|
||||
case PIN_CONFIG_BIAS_PULL_UP:
|
||||
if (pull != RZN1_L1_PIN_PULL_UP)
|
||||
return -EINVAL;
|
||||
break;
|
||||
case PIN_CONFIG_BIAS_PULL_DOWN:
|
||||
if (pull != RZN1_L1_PIN_PULL_DOWN)
|
||||
return -EINVAL;
|
||||
break;
|
||||
case PIN_CONFIG_BIAS_DISABLE:
|
||||
if (pull != RZN1_L1_PIN_PULL_NONE)
|
||||
return -EINVAL;
|
||||
break;
|
||||
case PIN_CONFIG_DRIVE_STRENGTH:
|
||||
arg = reg_drive[drive];
|
||||
break;
|
||||
case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
|
||||
l2 = readl(&ipctl->lev2->conf[pin]);
|
||||
if (l1mux == RZN1_L1_FUNCTION_L2) {
|
||||
if (l2 != 0)
|
||||
return -EINVAL;
|
||||
} else if (l1mux != RZN1_FUNC_HIGHZ) {
|
||||
return -EINVAL;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
return -ENOTSUPP;
|
||||
}
|
||||
|
||||
*config = pinconf_to_config_packed(param, arg);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rzn1_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
|
||||
unsigned long *configs, unsigned int num_configs)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
|
||||
enum pin_config_param param;
|
||||
unsigned int i;
|
||||
u32 l1, l1_cache;
|
||||
u32 drv;
|
||||
u32 arg;
|
||||
|
||||
if (pin >= ARRAY_SIZE(ipctl->lev1->conf))
|
||||
return -EINVAL;
|
||||
|
||||
l1 = readl(&ipctl->lev1->conf[pin]);
|
||||
l1_cache = l1;
|
||||
|
||||
for (i = 0; i < num_configs; i++) {
|
||||
param = pinconf_to_config_param(configs[i]);
|
||||
arg = pinconf_to_config_argument(configs[i]);
|
||||
|
||||
switch (param) {
|
||||
case PIN_CONFIG_BIAS_PULL_UP:
|
||||
dev_dbg(ipctl->dev, "set pin %d pull up\n", pin);
|
||||
l1 &= ~(0x3 << RZN1_L1_PIN_PULL);
|
||||
l1 |= (RZN1_L1_PIN_PULL_UP << RZN1_L1_PIN_PULL);
|
||||
break;
|
||||
case PIN_CONFIG_BIAS_PULL_DOWN:
|
||||
dev_dbg(ipctl->dev, "set pin %d pull down\n", pin);
|
||||
l1 &= ~(0x3 << RZN1_L1_PIN_PULL);
|
||||
l1 |= (RZN1_L1_PIN_PULL_DOWN << RZN1_L1_PIN_PULL);
|
||||
break;
|
||||
case PIN_CONFIG_BIAS_DISABLE:
|
||||
dev_dbg(ipctl->dev, "set pin %d bias off\n", pin);
|
||||
l1 &= ~(0x3 << RZN1_L1_PIN_PULL);
|
||||
l1 |= (RZN1_L1_PIN_PULL_NONE << RZN1_L1_PIN_PULL);
|
||||
break;
|
||||
case PIN_CONFIG_DRIVE_STRENGTH:
|
||||
dev_dbg(ipctl->dev, "set pin %d drv %umA\n", pin, arg);
|
||||
switch (arg) {
|
||||
case 4:
|
||||
drv = RZN1_L1_PIN_DRIVE_STRENGTH_4MA;
|
||||
break;
|
||||
case 6:
|
||||
drv = RZN1_L1_PIN_DRIVE_STRENGTH_6MA;
|
||||
break;
|
||||
case 8:
|
||||
drv = RZN1_L1_PIN_DRIVE_STRENGTH_8MA;
|
||||
break;
|
||||
case 12:
|
||||
drv = RZN1_L1_PIN_DRIVE_STRENGTH_12MA;
|
||||
break;
|
||||
default:
|
||||
dev_err(ipctl->dev,
|
||||
"Drive strength %umA not supported\n",
|
||||
arg);
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
l1 &= ~(0x3 << RZN1_L1_PIN_DRIVE_STRENGTH);
|
||||
l1 |= (drv << RZN1_L1_PIN_DRIVE_STRENGTH);
|
||||
break;
|
||||
|
||||
case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
|
||||
dev_dbg(ipctl->dev, "set pin %d High-Z\n", pin);
|
||||
l1 &= ~RZN1_L1_FUNC_MASK;
|
||||
l1 |= RZN1_FUNC_HIGHZ;
|
||||
break;
|
||||
default:
|
||||
return -ENOTSUPP;
|
||||
}
|
||||
}
|
||||
|
||||
if (l1 != l1_cache) {
|
||||
rzn1_hw_set_lock(ipctl, LOCK_LEVEL1, LOCK_LEVEL1);
|
||||
writel(l1, &ipctl->lev1->conf[pin]);
|
||||
rzn1_hw_set_lock(ipctl, LOCK_LEVEL1, 0);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rzn1_pinconf_group_get(struct pinctrl_dev *pctldev,
|
||||
unsigned int selector,
|
||||
unsigned long *config)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
|
||||
struct rzn1_pin_group *grp = &ipctl->groups[selector];
|
||||
unsigned long old = 0;
|
||||
unsigned int i;
|
||||
|
||||
dev_dbg(ipctl->dev, "group get %s selector:%u\n", grp->name, selector);
|
||||
|
||||
for (i = 0; i < grp->npins; i++) {
|
||||
if (rzn1_pinconf_get(pctldev, grp->pins[i], config))
|
||||
return -ENOTSUPP;
|
||||
|
||||
/* configs do not match between two pins */
|
||||
if (i && (old != *config))
|
||||
return -ENOTSUPP;
|
||||
|
||||
old = *config;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rzn1_pinconf_group_set(struct pinctrl_dev *pctldev,
|
||||
unsigned int selector,
|
||||
unsigned long *configs,
|
||||
unsigned int num_configs)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
|
||||
struct rzn1_pin_group *grp = &ipctl->groups[selector];
|
||||
unsigned int i;
|
||||
int ret;
|
||||
|
||||
dev_dbg(ipctl->dev, "group set %s selector:%u configs:%p/%d\n",
|
||||
grp->name, selector, configs, num_configs);
|
||||
|
||||
for (i = 0; i < grp->npins; i++) {
|
||||
unsigned int pin = grp->pins[i];
|
||||
|
||||
ret = rzn1_pinconf_set(pctldev, pin, configs, num_configs);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct pinconf_ops rzn1_pinconf_ops = {
|
||||
.is_generic = true,
|
||||
.pin_config_get = rzn1_pinconf_get,
|
||||
.pin_config_set = rzn1_pinconf_set,
|
||||
.pin_config_group_get = rzn1_pinconf_group_get,
|
||||
.pin_config_group_set = rzn1_pinconf_group_set,
|
||||
.pin_config_config_dbg_show = pinconf_generic_dump_config,
|
||||
};
|
||||
|
||||
static struct pinctrl_desc rzn1_pinctrl_desc = {
|
||||
.pctlops = &rzn1_pctrl_ops,
|
||||
.pmxops = &rzn1_pmx_ops,
|
||||
.confops = &rzn1_pinconf_ops,
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static int rzn1_pinctrl_parse_groups(struct device_node *np,
|
||||
struct rzn1_pin_group *grp,
|
||||
struct rzn1_pinctrl *ipctl)
|
||||
{
|
||||
const __be32 *list;
|
||||
unsigned int i;
|
||||
int size;
|
||||
|
||||
dev_dbg(ipctl->dev, "%s: %s\n", __func__, np->name);
|
||||
|
||||
/* Initialise group */
|
||||
grp->name = np->name;
|
||||
|
||||
/*
|
||||
* The binding format is
|
||||
* pinmux = <PIN_FUNC_ID CONFIG ...>,
|
||||
* do sanity check and calculate pins number
|
||||
*/
|
||||
list = of_get_property(np, RZN1_PINS_PROP, &size);
|
||||
if (!list) {
|
||||
dev_err(ipctl->dev,
|
||||
"no " RZN1_PINS_PROP " property in node %pOF\n", np);
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (!size) {
|
||||
dev_err(ipctl->dev, "Invalid " RZN1_PINS_PROP " in node %pOF\n",
|
||||
np);
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
grp->npins = size / sizeof(list[0]);
|
||||
grp->pin_ids = devm_kmalloc_array(ipctl->dev,
|
||||
grp->npins, sizeof(grp->pin_ids[0]),
|
||||
GFP_KERNEL);
|
||||
grp->pins = devm_kmalloc_array(ipctl->dev,
|
||||
grp->npins, sizeof(grp->pins[0]),
|
||||
GFP_KERNEL);
|
||||
if (!grp->pin_ids || !grp->pins)
|
||||
return -ENOMEM;
|
||||
|
||||
for (i = 0; i < grp->npins; i++) {
|
||||
u32 pin_id = be32_to_cpu(*list++);
|
||||
|
||||
grp->pins[i] = pin_id & 0xff;
|
||||
grp->pin_ids[i] = (pin_id >> 8) & 0x7f;
|
||||
}
|
||||
|
||||
return grp->npins;
|
||||
}
|
||||
|
||||
static int rzn1_pinctrl_count_function_groups(struct device_node *np)
|
||||
{
|
||||
struct device_node *child;
|
||||
int count = 0;
|
||||
|
||||
if (of_property_count_u32_elems(np, RZN1_PINS_PROP) > 0)
|
||||
count++;
|
||||
|
||||
for_each_child_of_node(np, child) {
|
||||
if (of_property_count_u32_elems(child, RZN1_PINS_PROP) > 0)
|
||||
count++;
|
||||
}
|
||||
|
||||
return count;
|
||||
}
|
||||
|
||||
static int rzn1_pinctrl_parse_functions(struct device_node *np,
|
||||
struct rzn1_pinctrl *ipctl,
|
||||
unsigned int index)
|
||||
{
|
||||
struct rzn1_pmx_func *func;
|
||||
struct rzn1_pin_group *grp;
|
||||
struct device_node *child;
|
||||
unsigned int i = 0;
|
||||
int ret;
|
||||
|
||||
func = &ipctl->functions[index];
|
||||
|
||||
/* Initialise function */
|
||||
func->name = np->name;
|
||||
func->num_groups = rzn1_pinctrl_count_function_groups(np);
|
||||
if (func->num_groups == 0) {
|
||||
dev_err(ipctl->dev, "no groups defined in %pOF\n", np);
|
||||
return -EINVAL;
|
||||
}
|
||||
dev_dbg(ipctl->dev, "function %s has %d groups\n",
|
||||
np->name, func->num_groups);
|
||||
|
||||
func->groups = devm_kmalloc_array(ipctl->dev,
|
||||
func->num_groups, sizeof(char *),
|
||||
GFP_KERNEL);
|
||||
if (!func->groups)
|
||||
return -ENOMEM;
|
||||
|
||||
if (of_property_count_u32_elems(np, RZN1_PINS_PROP) > 0) {
|
||||
func->groups[i] = np->name;
|
||||
grp = &ipctl->groups[ipctl->ngroups];
|
||||
grp->func = func->name;
|
||||
ret = rzn1_pinctrl_parse_groups(np, grp, ipctl);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
i++;
|
||||
ipctl->ngroups++;
|
||||
}
|
||||
|
||||
for_each_child_of_node(np, child) {
|
||||
func->groups[i] = child->name;
|
||||
grp = &ipctl->groups[ipctl->ngroups];
|
||||
grp->func = func->name;
|
||||
ret = rzn1_pinctrl_parse_groups(child, grp, ipctl);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
i++;
|
||||
ipctl->ngroups++;
|
||||
}
|
||||
|
||||
dev_dbg(ipctl->dev, "function %s parsed %u/%u groups\n",
|
||||
np->name, i, func->num_groups);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rzn1_pinctrl_probe_dt(struct platform_device *pdev,
|
||||
struct rzn1_pinctrl *ipctl)
|
||||
{
|
||||
struct device_node *np = pdev->dev.of_node;
|
||||
struct device_node *child;
|
||||
unsigned int maxgroups = 0;
|
||||
unsigned int nfuncs = 0;
|
||||
unsigned int i = 0;
|
||||
int ret;
|
||||
|
||||
nfuncs = of_get_child_count(np);
|
||||
if (nfuncs <= 0)
|
||||
return 0;
|
||||
|
||||
ipctl->nfunctions = nfuncs;
|
||||
ipctl->functions = devm_kmalloc_array(&pdev->dev, nfuncs,
|
||||
sizeof(*ipctl->functions),
|
||||
GFP_KERNEL);
|
||||
if (!ipctl->functions)
|
||||
return -ENOMEM;
|
||||
|
||||
ipctl->ngroups = 0;
|
||||
for_each_child_of_node(np, child)
|
||||
maxgroups += rzn1_pinctrl_count_function_groups(child);
|
||||
|
||||
ipctl->groups = devm_kmalloc_array(&pdev->dev,
|
||||
maxgroups,
|
||||
sizeof(*ipctl->groups),
|
||||
GFP_KERNEL);
|
||||
if (!ipctl->groups)
|
||||
return -ENOMEM;
|
||||
|
||||
for_each_child_of_node(np, child) {
|
||||
ret = rzn1_pinctrl_parse_functions(child, ipctl, i++);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rzn1_pinctrl_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl;
|
||||
struct resource *res;
|
||||
int ret;
|
||||
|
||||
/* Create state holders etc for this driver */
|
||||
ipctl = devm_kzalloc(&pdev->dev, sizeof(*ipctl), GFP_KERNEL);
|
||||
if (!ipctl)
|
||||
return -ENOMEM;
|
||||
|
||||
ipctl->mdio_func[0] = -1;
|
||||
ipctl->mdio_func[1] = -1;
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
ipctl->lev1_protect_phys = (u32)res->start + 0x400;
|
||||
ipctl->lev1 = devm_ioremap_resource(&pdev->dev, res);
|
||||
if (IS_ERR(ipctl->lev1))
|
||||
return PTR_ERR(ipctl->lev1);
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
|
||||
ipctl->lev2_protect_phys = (u32)res->start + 0x400;
|
||||
ipctl->lev2 = devm_ioremap_resource(&pdev->dev, res);
|
||||
if (IS_ERR(ipctl->lev2))
|
||||
return PTR_ERR(ipctl->lev2);
|
||||
|
||||
ipctl->clk = devm_clk_get(&pdev->dev, NULL);
|
||||
if (IS_ERR(ipctl->clk))
|
||||
return PTR_ERR(ipctl->clk);
|
||||
ret = clk_prepare_enable(ipctl->clk);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ipctl->dev = &pdev->dev;
|
||||
rzn1_pinctrl_desc.name = dev_name(&pdev->dev);
|
||||
rzn1_pinctrl_desc.pins = rzn1_pins;
|
||||
rzn1_pinctrl_desc.npins = ARRAY_SIZE(rzn1_pins);
|
||||
|
||||
ret = rzn1_pinctrl_probe_dt(pdev, ipctl);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "fail to probe dt properties\n");
|
||||
goto err_clk;
|
||||
}
|
||||
|
||||
platform_set_drvdata(pdev, ipctl);
|
||||
|
||||
ret = devm_pinctrl_register_and_init(&pdev->dev, &rzn1_pinctrl_desc,
|
||||
ipctl, &ipctl->pctl);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "could not register rzn1 pinctrl driver\n");
|
||||
goto err_clk;
|
||||
}
|
||||
|
||||
ret = pinctrl_enable(ipctl->pctl);
|
||||
if (ret)
|
||||
goto err_clk;
|
||||
|
||||
dev_info(&pdev->dev, "probed\n");
|
||||
|
||||
return 0;
|
||||
|
||||
err_clk:
|
||||
clk_disable_unprepare(ipctl->clk);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rzn1_pinctrl_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct rzn1_pinctrl *ipctl = platform_get_drvdata(pdev);
|
||||
|
||||
clk_disable_unprepare(ipctl->clk);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct of_device_id rzn1_pinctrl_match[] = {
|
||||
{ .compatible = "renesas,rzn1-pinctrl", },
|
||||
{}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, rzn1_pinctrl_match);
|
||||
|
||||
static struct platform_driver rzn1_pinctrl_driver = {
|
||||
.probe = rzn1_pinctrl_probe,
|
||||
.remove = rzn1_pinctrl_remove,
|
||||
.driver = {
|
||||
.name = "rzn1-pinctrl",
|
||||
.owner = THIS_MODULE,
|
||||
.of_match_table = rzn1_pinctrl_match,
|
||||
},
|
||||
};
|
||||
|
||||
static int __init _pinctrl_drv_register(void)
|
||||
{
|
||||
return platform_driver_register(&rzn1_pinctrl_driver);
|
||||
}
|
||||
subsys_initcall(_pinctrl_drv_register);
|
||||
|
||||
MODULE_AUTHOR("Phil Edworthy <phil.edworthy@renesas.com>");
|
||||
MODULE_DESCRIPTION("Renesas RZ/N1 pinctrl driver");
|
||||
MODULE_LICENSE("GPL v2");
|
|
@ -1595,6 +1595,50 @@ static const unsigned int i2c7_b_mux[] = {
|
|||
SCL7_B_MARK, SDA7_B_MARK,
|
||||
};
|
||||
|
||||
/* - INTC-EX ---------------------------------------------------------------- */
|
||||
static const unsigned int intc_ex_irq0_pins[] = {
|
||||
/* IRQ0 */
|
||||
RCAR_GP_PIN(1, 0),
|
||||
};
|
||||
static const unsigned int intc_ex_irq0_mux[] = {
|
||||
IRQ0_MARK,
|
||||
};
|
||||
static const unsigned int intc_ex_irq1_pins[] = {
|
||||
/* IRQ1 */
|
||||
RCAR_GP_PIN(1, 1),
|
||||
};
|
||||
static const unsigned int intc_ex_irq1_mux[] = {
|
||||
IRQ1_MARK,
|
||||
};
|
||||
static const unsigned int intc_ex_irq2_pins[] = {
|
||||
/* IRQ2 */
|
||||
RCAR_GP_PIN(1, 2),
|
||||
};
|
||||
static const unsigned int intc_ex_irq2_mux[] = {
|
||||
IRQ2_MARK,
|
||||
};
|
||||
static const unsigned int intc_ex_irq3_pins[] = {
|
||||
/* IRQ3 */
|
||||
RCAR_GP_PIN(1, 9),
|
||||
};
|
||||
static const unsigned int intc_ex_irq3_mux[] = {
|
||||
IRQ3_MARK,
|
||||
};
|
||||
static const unsigned int intc_ex_irq4_pins[] = {
|
||||
/* IRQ4 */
|
||||
RCAR_GP_PIN(1, 10),
|
||||
};
|
||||
static const unsigned int intc_ex_irq4_mux[] = {
|
||||
IRQ4_MARK,
|
||||
};
|
||||
static const unsigned int intc_ex_irq5_pins[] = {
|
||||
/* IRQ5 */
|
||||
RCAR_GP_PIN(0, 7),
|
||||
};
|
||||
static const unsigned int intc_ex_irq5_mux[] = {
|
||||
IRQ5_MARK,
|
||||
};
|
||||
|
||||
/* - MSIOF0 ----------------------------------------------------------------- */
|
||||
static const unsigned int msiof0_clk_pins[] = {
|
||||
/* SCK */
|
||||
|
@ -2390,7 +2434,7 @@ static const unsigned int usb30_id_mux[] = {
|
|||
};
|
||||
|
||||
static const struct {
|
||||
struct sh_pfc_pin_group common[117];
|
||||
struct sh_pfc_pin_group common[123];
|
||||
struct sh_pfc_pin_group automotive[0];
|
||||
} pinmux_groups = {
|
||||
.common = {
|
||||
|
@ -2425,6 +2469,12 @@ static const struct {
|
|||
SH_PFC_PIN_GROUP(i2c6_b),
|
||||
SH_PFC_PIN_GROUP(i2c7_a),
|
||||
SH_PFC_PIN_GROUP(i2c7_b),
|
||||
SH_PFC_PIN_GROUP(intc_ex_irq0),
|
||||
SH_PFC_PIN_GROUP(intc_ex_irq1),
|
||||
SH_PFC_PIN_GROUP(intc_ex_irq2),
|
||||
SH_PFC_PIN_GROUP(intc_ex_irq3),
|
||||
SH_PFC_PIN_GROUP(intc_ex_irq4),
|
||||
SH_PFC_PIN_GROUP(intc_ex_irq5),
|
||||
SH_PFC_PIN_GROUP(msiof0_clk),
|
||||
SH_PFC_PIN_GROUP(msiof0_sync),
|
||||
SH_PFC_PIN_GROUP(msiof0_ss1),
|
||||
|
@ -2569,6 +2619,15 @@ static const char * const i2c7_groups[] = {
|
|||
"i2c7_b",
|
||||
};
|
||||
|
||||
static const char * const intc_ex_groups[] = {
|
||||
"intc_ex_irq0",
|
||||
"intc_ex_irq1",
|
||||
"intc_ex_irq2",
|
||||
"intc_ex_irq3",
|
||||
"intc_ex_irq4",
|
||||
"intc_ex_irq5",
|
||||
};
|
||||
|
||||
static const char * const msiof0_groups[] = {
|
||||
"msiof0_clk",
|
||||
"msiof0_sync",
|
||||
|
@ -2716,7 +2775,7 @@ static const char * const usb30_groups[] = {
|
|||
};
|
||||
|
||||
static const struct {
|
||||
struct sh_pfc_function common[28];
|
||||
struct sh_pfc_function common[29];
|
||||
struct sh_pfc_function automotive[0];
|
||||
} pinmux_functions = {
|
||||
.common = {
|
||||
|
@ -2728,6 +2787,7 @@ static const struct {
|
|||
SH_PFC_FUNCTION(i2c5),
|
||||
SH_PFC_FUNCTION(i2c6),
|
||||
SH_PFC_FUNCTION(i2c7),
|
||||
SH_PFC_FUNCTION(intc_ex),
|
||||
SH_PFC_FUNCTION(msiof0),
|
||||
SH_PFC_FUNCTION(msiof1),
|
||||
SH_PFC_FUNCTION(msiof2),
|
||||
|
|
141
include/dt-bindings/pinctrl/rzn1-pinctrl.h
Normal file
141
include/dt-bindings/pinctrl/rzn1-pinctrl.h
Normal file
|
@ -0,0 +1,141 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/*
|
||||
* Defines macros and constants for Renesas RZ/N1 pin controller pin
|
||||
* muxing functions.
|
||||
*/
|
||||
#ifndef __DT_BINDINGS_RZN1_PINCTRL_H
|
||||
#define __DT_BINDINGS_RZN1_PINCTRL_H
|
||||
|
||||
#define RZN1_PINMUX(_gpio, _func) \
|
||||
(((_func) << 8) | (_gpio))
|
||||
|
||||
/*
|
||||
* Given the different levels of muxing on the SoC, it was decided to
|
||||
* 'linearize' them into one numerical space. So mux level 1, 2 and the MDIO
|
||||
* muxes are all represented by one single value.
|
||||
*
|
||||
* You can derive the hardware value pretty easily too, as
|
||||
* 0...9 are Level 1
|
||||
* 10...71 are Level 2. The Level 2 mux will be set to this
|
||||
* value - RZN1_FUNC_L2_OFFSET, and the Level 1 mux will be
|
||||
* set accordingly.
|
||||
* 72...103 are for the 2 MDIO muxes.
|
||||
*/
|
||||
#define RZN1_FUNC_HIGHZ 0
|
||||
#define RZN1_FUNC_0L 1
|
||||
#define RZN1_FUNC_CLK_ETH_MII_RGMII_RMII 2
|
||||
#define RZN1_FUNC_CLK_ETH_NAND 3
|
||||
#define RZN1_FUNC_QSPI 4
|
||||
#define RZN1_FUNC_SDIO 5
|
||||
#define RZN1_FUNC_LCD 6
|
||||
#define RZN1_FUNC_LCD_E 7
|
||||
#define RZN1_FUNC_MSEBIM 8
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#define RZN1_FUNC_MSEBIS 9
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#define RZN1_FUNC_L2_OFFSET 10 /* I'm Special */
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#define RZN1_FUNC_HIGHZ1 (RZN1_FUNC_L2_OFFSET + 0)
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#define RZN1_FUNC_ETHERCAT (RZN1_FUNC_L2_OFFSET + 1)
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#define RZN1_FUNC_SERCOS3 (RZN1_FUNC_L2_OFFSET + 2)
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#define RZN1_FUNC_SDIO_E (RZN1_FUNC_L2_OFFSET + 3)
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#define RZN1_FUNC_ETH_MDIO (RZN1_FUNC_L2_OFFSET + 4)
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#define RZN1_FUNC_ETH_MDIO_E1 (RZN1_FUNC_L2_OFFSET + 5)
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#define RZN1_FUNC_USB (RZN1_FUNC_L2_OFFSET + 6)
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#define RZN1_FUNC_MSEBIM_E (RZN1_FUNC_L2_OFFSET + 7)
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#define RZN1_FUNC_MSEBIS_E (RZN1_FUNC_L2_OFFSET + 8)
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#define RZN1_FUNC_RSV (RZN1_FUNC_L2_OFFSET + 9)
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#define RZN1_FUNC_RSV_E (RZN1_FUNC_L2_OFFSET + 10)
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#define RZN1_FUNC_RSV_E1 (RZN1_FUNC_L2_OFFSET + 11)
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||||
#define RZN1_FUNC_UART0_I (RZN1_FUNC_L2_OFFSET + 12)
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||||
#define RZN1_FUNC_UART0_I_E (RZN1_FUNC_L2_OFFSET + 13)
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#define RZN1_FUNC_UART1_I (RZN1_FUNC_L2_OFFSET + 14)
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#define RZN1_FUNC_UART1_I_E (RZN1_FUNC_L2_OFFSET + 15)
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#define RZN1_FUNC_UART2_I (RZN1_FUNC_L2_OFFSET + 16)
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#define RZN1_FUNC_UART2_I_E (RZN1_FUNC_L2_OFFSET + 17)
|
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#define RZN1_FUNC_UART0 (RZN1_FUNC_L2_OFFSET + 18)
|
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#define RZN1_FUNC_UART0_E (RZN1_FUNC_L2_OFFSET + 19)
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||||
#define RZN1_FUNC_UART1 (RZN1_FUNC_L2_OFFSET + 20)
|
||||
#define RZN1_FUNC_UART1_E (RZN1_FUNC_L2_OFFSET + 21)
|
||||
#define RZN1_FUNC_UART2 (RZN1_FUNC_L2_OFFSET + 22)
|
||||
#define RZN1_FUNC_UART2_E (RZN1_FUNC_L2_OFFSET + 23)
|
||||
#define RZN1_FUNC_UART3 (RZN1_FUNC_L2_OFFSET + 24)
|
||||
#define RZN1_FUNC_UART3_E (RZN1_FUNC_L2_OFFSET + 25)
|
||||
#define RZN1_FUNC_UART4 (RZN1_FUNC_L2_OFFSET + 26)
|
||||
#define RZN1_FUNC_UART4_E (RZN1_FUNC_L2_OFFSET + 27)
|
||||
#define RZN1_FUNC_UART5 (RZN1_FUNC_L2_OFFSET + 28)
|
||||
#define RZN1_FUNC_UART5_E (RZN1_FUNC_L2_OFFSET + 29)
|
||||
#define RZN1_FUNC_UART6 (RZN1_FUNC_L2_OFFSET + 30)
|
||||
#define RZN1_FUNC_UART6_E (RZN1_FUNC_L2_OFFSET + 31)
|
||||
#define RZN1_FUNC_UART7 (RZN1_FUNC_L2_OFFSET + 32)
|
||||
#define RZN1_FUNC_UART7_E (RZN1_FUNC_L2_OFFSET + 33)
|
||||
#define RZN1_FUNC_SPI0_M (RZN1_FUNC_L2_OFFSET + 34)
|
||||
#define RZN1_FUNC_SPI0_M_E (RZN1_FUNC_L2_OFFSET + 35)
|
||||
#define RZN1_FUNC_SPI1_M (RZN1_FUNC_L2_OFFSET + 36)
|
||||
#define RZN1_FUNC_SPI1_M_E (RZN1_FUNC_L2_OFFSET + 37)
|
||||
#define RZN1_FUNC_SPI2_M (RZN1_FUNC_L2_OFFSET + 38)
|
||||
#define RZN1_FUNC_SPI2_M_E (RZN1_FUNC_L2_OFFSET + 39)
|
||||
#define RZN1_FUNC_SPI3_M (RZN1_FUNC_L2_OFFSET + 40)
|
||||
#define RZN1_FUNC_SPI3_M_E (RZN1_FUNC_L2_OFFSET + 41)
|
||||
#define RZN1_FUNC_SPI4_S (RZN1_FUNC_L2_OFFSET + 42)
|
||||
#define RZN1_FUNC_SPI4_S_E (RZN1_FUNC_L2_OFFSET + 43)
|
||||
#define RZN1_FUNC_SPI5_S (RZN1_FUNC_L2_OFFSET + 44)
|
||||
#define RZN1_FUNC_SPI5_S_E (RZN1_FUNC_L2_OFFSET + 45)
|
||||
#define RZN1_FUNC_SGPIO0_M (RZN1_FUNC_L2_OFFSET + 46)
|
||||
#define RZN1_FUNC_SGPIO1_M (RZN1_FUNC_L2_OFFSET + 47)
|
||||
#define RZN1_FUNC_GPIO (RZN1_FUNC_L2_OFFSET + 48)
|
||||
#define RZN1_FUNC_CAN (RZN1_FUNC_L2_OFFSET + 49)
|
||||
#define RZN1_FUNC_I2C (RZN1_FUNC_L2_OFFSET + 50)
|
||||
#define RZN1_FUNC_SAFE (RZN1_FUNC_L2_OFFSET + 51)
|
||||
#define RZN1_FUNC_PTO_PWM (RZN1_FUNC_L2_OFFSET + 52)
|
||||
#define RZN1_FUNC_PTO_PWM1 (RZN1_FUNC_L2_OFFSET + 53)
|
||||
#define RZN1_FUNC_PTO_PWM2 (RZN1_FUNC_L2_OFFSET + 54)
|
||||
#define RZN1_FUNC_PTO_PWM3 (RZN1_FUNC_L2_OFFSET + 55)
|
||||
#define RZN1_FUNC_PTO_PWM4 (RZN1_FUNC_L2_OFFSET + 56)
|
||||
#define RZN1_FUNC_DELTA_SIGMA (RZN1_FUNC_L2_OFFSET + 57)
|
||||
#define RZN1_FUNC_SGPIO2_M (RZN1_FUNC_L2_OFFSET + 58)
|
||||
#define RZN1_FUNC_SGPIO3_M (RZN1_FUNC_L2_OFFSET + 59)
|
||||
#define RZN1_FUNC_SGPIO4_S (RZN1_FUNC_L2_OFFSET + 60)
|
||||
#define RZN1_FUNC_MAC_MTIP_SWITCH (RZN1_FUNC_L2_OFFSET + 61)
|
||||
|
||||
#define RZN1_FUNC_MDIO_OFFSET (RZN1_FUNC_L2_OFFSET + 62)
|
||||
|
||||
/* These are MDIO0 peripherals for the RZN1_FUNC_ETH_MDIO function */
|
||||
#define RZN1_FUNC_MDIO0_HIGHZ (RZN1_FUNC_MDIO_OFFSET + 0)
|
||||
#define RZN1_FUNC_MDIO0_GMAC0 (RZN1_FUNC_MDIO_OFFSET + 1)
|
||||
#define RZN1_FUNC_MDIO0_GMAC1 (RZN1_FUNC_MDIO_OFFSET + 2)
|
||||
#define RZN1_FUNC_MDIO0_ECAT (RZN1_FUNC_MDIO_OFFSET + 3)
|
||||
#define RZN1_FUNC_MDIO0_S3_MDIO0 (RZN1_FUNC_MDIO_OFFSET + 4)
|
||||
#define RZN1_FUNC_MDIO0_S3_MDIO1 (RZN1_FUNC_MDIO_OFFSET + 5)
|
||||
#define RZN1_FUNC_MDIO0_HWRTOS (RZN1_FUNC_MDIO_OFFSET + 6)
|
||||
#define RZN1_FUNC_MDIO0_SWITCH (RZN1_FUNC_MDIO_OFFSET + 7)
|
||||
/* These are MDIO0 peripherals for the RZN1_FUNC_ETH_MDIO_E1 function */
|
||||
#define RZN1_FUNC_MDIO0_E1_HIGHZ (RZN1_FUNC_MDIO_OFFSET + 8)
|
||||
#define RZN1_FUNC_MDIO0_E1_GMAC0 (RZN1_FUNC_MDIO_OFFSET + 9)
|
||||
#define RZN1_FUNC_MDIO0_E1_GMAC1 (RZN1_FUNC_MDIO_OFFSET + 10)
|
||||
#define RZN1_FUNC_MDIO0_E1_ECAT (RZN1_FUNC_MDIO_OFFSET + 11)
|
||||
#define RZN1_FUNC_MDIO0_E1_S3_MDIO0 (RZN1_FUNC_MDIO_OFFSET + 12)
|
||||
#define RZN1_FUNC_MDIO0_E1_S3_MDIO1 (RZN1_FUNC_MDIO_OFFSET + 13)
|
||||
#define RZN1_FUNC_MDIO0_E1_HWRTOS (RZN1_FUNC_MDIO_OFFSET + 14)
|
||||
#define RZN1_FUNC_MDIO0_E1_SWITCH (RZN1_FUNC_MDIO_OFFSET + 15)
|
||||
|
||||
/* These are MDIO1 peripherals for the RZN1_FUNC_ETH_MDIO function */
|
||||
#define RZN1_FUNC_MDIO1_HIGHZ (RZN1_FUNC_MDIO_OFFSET + 16)
|
||||
#define RZN1_FUNC_MDIO1_GMAC0 (RZN1_FUNC_MDIO_OFFSET + 17)
|
||||
#define RZN1_FUNC_MDIO1_GMAC1 (RZN1_FUNC_MDIO_OFFSET + 18)
|
||||
#define RZN1_FUNC_MDIO1_ECAT (RZN1_FUNC_MDIO_OFFSET + 19)
|
||||
#define RZN1_FUNC_MDIO1_S3_MDIO0 (RZN1_FUNC_MDIO_OFFSET + 20)
|
||||
#define RZN1_FUNC_MDIO1_S3_MDIO1 (RZN1_FUNC_MDIO_OFFSET + 21)
|
||||
#define RZN1_FUNC_MDIO1_HWRTOS (RZN1_FUNC_MDIO_OFFSET + 22)
|
||||
#define RZN1_FUNC_MDIO1_SWITCH (RZN1_FUNC_MDIO_OFFSET + 23)
|
||||
/* These are MDIO1 peripherals for the RZN1_FUNC_ETH_MDIO_E1 function */
|
||||
#define RZN1_FUNC_MDIO1_E1_HIGHZ (RZN1_FUNC_MDIO_OFFSET + 24)
|
||||
#define RZN1_FUNC_MDIO1_E1_GMAC0 (RZN1_FUNC_MDIO_OFFSET + 25)
|
||||
#define RZN1_FUNC_MDIO1_E1_GMAC1 (RZN1_FUNC_MDIO_OFFSET + 26)
|
||||
#define RZN1_FUNC_MDIO1_E1_ECAT (RZN1_FUNC_MDIO_OFFSET + 27)
|
||||
#define RZN1_FUNC_MDIO1_E1_S3_MDIO0 (RZN1_FUNC_MDIO_OFFSET + 28)
|
||||
#define RZN1_FUNC_MDIO1_E1_S3_MDIO1 (RZN1_FUNC_MDIO_OFFSET + 29)
|
||||
#define RZN1_FUNC_MDIO1_E1_HWRTOS (RZN1_FUNC_MDIO_OFFSET + 30)
|
||||
#define RZN1_FUNC_MDIO1_E1_SWITCH (RZN1_FUNC_MDIO_OFFSET + 31)
|
||||
|
||||
#define RZN1_FUNC_MAX (RZN1_FUNC_MDIO_OFFSET + 32)
|
||||
|
||||
#endif /* __DT_BINDINGS_RZN1_PINCTRL_H */
|
Loading…
Reference in New Issue
Block a user