Introduce OpenWRT compatible pinctrl driver for Mediatek/Ralink SoCs
The driver can read and parse the OpenWRT pinctrl dts entries. Approved by: adrian (mentor) Sponsored by: Smartcom - Bulgaria AD Differential Revision: https://reviews.freebsd.org/D5999
This commit is contained in:
sgalabov
parent
302f717dfb
commit
6cdc3a132d
@ -40,11 +40,13 @@ __FBSDID("$FreeBSD$");
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#include <dev/fdt/fdt_pinctrl.h>
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#include <mips/mediatek/mtk_sysctl.h>
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#include <mips/mediatek/mtk_soc.h>
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#include <mips/mediatek/mtk_pinctrl.h>
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#include "fdt_pinctrl_if.h"
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static const struct ofw_compat_data compat_data[] = {
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{ "ralink,rt2880-pinctrl", 1 },
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{ "ralink,rt2880-pinmux", 1 },
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/* Sentinel */
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{ NULL, 0 }
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@ -74,21 +76,142 @@ mtk_pinctrl_attach(device_t dev)
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return (ENXIO);
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}
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fdt_pinctrl_register(dev, "pinctrl-single,bits");
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if (bootverbose)
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device_printf(dev, "GPIO mode start: 0x%08x\n",
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mtk_sysctl_get(SYSCTL_GPIOMODE));
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fdt_pinctrl_register(dev, NULL);
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fdt_pinctrl_configure_tree(dev);
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if (bootverbose)
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device_printf(dev, "GPIO mode: 0x%08x\n",
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device_printf(dev, "GPIO mode end : 0x%08x\n",
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mtk_sysctl_get(SYSCTL_GPIOMODE));
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return (0);
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}
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static int
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mtk_pinctrl_process_entry(device_t dev, struct mtk_pin_group *table,
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const char *group, char *func)
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{
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uint32_t val;
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int found = 0, i, j;
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for (i = 0; table[i].name != NULL; i++) {
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if (strcmp(table[i].name, group) == 0) {
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found = 1;
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break;
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}
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}
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if (!found)
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return (ENOENT);
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for (j = 0; j < table[i].funcnum; j++) {
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if (strcmp(table[i].functions[j].name, func) == 0) {
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val = mtk_sysctl_get(table[i].sysc_reg);
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val &= ~(table[i].mask << table[i].offset);
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val |= (table[i].functions[j].value << table[i].offset);
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mtk_sysctl_set(table[i].sysc_reg, val);
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return (0);
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}
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}
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return (ENOENT);
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}
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static int
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mtk_pinctrl_process_node(device_t dev, struct mtk_pin_group *table,
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phandle_t node)
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{
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const char **group_list = NULL;
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char *pin_function = NULL;
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int ret, num_groups, i;
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ret = 0;
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num_groups = ofw_bus_string_list_to_array(node, "ralink,group",
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&group_list);
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if (num_groups <= 0)
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return (ENOENT);
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if (OF_getprop_alloc(node, "ralink,function", sizeof(*pin_function),
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(void **)&pin_function) == -1) {
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ret = ENOENT;
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goto out;
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}
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for (i = 0; i < num_groups; i++) {
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if ((ret = mtk_pinctrl_process_entry(dev, table, group_list[i],
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pin_function)) != 0)
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goto out;
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}
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out:
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free(group_list, M_OFWPROP);
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free(pin_function, M_OFWPROP);
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return (ret);
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}
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static int
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mtk_pinctrl_configure(device_t dev, phandle_t cfgxref)
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{
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struct mtk_pin_group *pintable;
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phandle_t node, child;
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uint32_t socid;
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int ret;
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return (EINVAL);
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node = OF_node_from_xref(cfgxref);
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ret = 0;
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/* Now, get the system type, so we can get the proper GPIO mode array */
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socid = mtk_soc_get_socid();
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switch (socid) {
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case MTK_SOC_RT3050: /* fallthrough */
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case MTK_SOC_RT3052:
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case MTK_SOC_RT3350:
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pintable = rt3050_pintable;
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break;
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case MTK_SOC_RT3352:
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pintable = rt3352_pintable;
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break;
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case MTK_SOC_RT3662: /* fallthrough */
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case MTK_SOC_RT3883:
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pintable = rt3883_pintable;
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break;
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case MTK_SOC_RT5350:
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pintable = rt5350_pintable;
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break;
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case MTK_SOC_MT7620A: /* fallthrough */
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case MTK_SOC_MT7620N:
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pintable = mt7620_pintable;
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break;
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case MTK_SOC_MT7628: /* fallthrough */
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case MTK_SOC_MT7688:
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pintable = mt7628_pintable;
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break;
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case MTK_SOC_MT7621:
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pintable = mt7621_pintable;
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break;
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default:
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ret = ENOENT;
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goto out;
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}
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/*
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* OpenWRT dts files have single child within the pinctrl nodes, which
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* contains the 'ralink,group' and 'ralink,function' properties.
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*/
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for (child = OF_child(node); child != 0 && child != -1;
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child = OF_peer(child)) {
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if ((ret = mtk_pinctrl_process_node(dev, pintable, child)) != 0)
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return (ret);
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}
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out:
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return (ret);
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}
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static device_method_t mtk_pinctrl_methods[] = {
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354
sys/mips/mediatek/mtk_pinctrl.h
Normal file
354
sys/mips/mediatek/mtk_pinctrl.h
Normal file
@ -0,0 +1,354 @@
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/*-
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* Copyright (c) 2016 Stanislav Galabov.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MTK_PINCTRL_H_
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#define _MTK_PINCTRL_H_
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struct mtk_pin_function {
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const char *name;
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uint32_t value;
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};
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struct mtk_pin_group {
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const char *name;
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uint32_t sysc_reg;
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uint32_t offset;
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uint32_t mask;
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struct mtk_pin_function *functions;
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uint32_t funcnum;
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};
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#define FUNC(_name, _value) \
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{ .name = (_name), .value = (_value) }
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#define GROUP(_name, _reg, _off, _mask, _funcs) \
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{ .name = (_name), .sysc_reg = (_reg), .offset = (_off), \
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.mask = (_mask), .functions = (_funcs), .funcnum = nitems(_funcs) }
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#define GROUP_END { NULL, 0, 0, 0, NULL, 0 }
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#define DECL_FUNC(_name) \
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static struct mtk_pin_function _name[]
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#define DECL_TABLE(_name) \
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static struct mtk_pin_group _name[]
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/* Pin function declarations */
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DECL_FUNC(i2c_func) = {
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FUNC("i2c", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(spi_func) = {
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FUNC("spi", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(uartf_func) = {
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FUNC("uartf", 0), FUNC("pcm uartf", 1), FUNC("pcm i2s", 2),
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FUNC("i2s uartf", 3), FUNC("pcm gpio", 4), FUNC("gpio uartf", 5),
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FUNC("gpio i2s", 6), FUNC("gpio", 7)
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};
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DECL_FUNC(wdt_func) = {
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FUNC("wdt rst", 0), FUNC("wdt", 0), FUNC("wdt refclk", 1),
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FUNC("gpio", 2)
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};
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DECL_FUNC(uartlite_func) = {
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FUNC("uartlite", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(jtag_func) = {
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FUNC("jtag", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(mdio_func) = {
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FUNC("mdio", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(led_func) = {
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FUNC("led", 0), FUNC("gpio", 1), FUNC("bt", 2)
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};
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DECL_FUNC(cs1_func) = {
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FUNC("spi_cs1", 0), FUNC("wdt_cs1", 1), FUNC("gpio", 2)
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};
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DECL_FUNC(sdram_func) = {
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FUNC("sdram", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(rgmii_func) = {
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FUNC("rgmii", 0), FUNC("rgmii1", 0), FUNC("rgmii2", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(lna_func) = {
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FUNC("lna", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(pa_func) = {
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FUNC("pa", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(gex_func) = {
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FUNC("ge1", 0), FUNC("ge2", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(rt3883_pci_func) = {
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FUNC("pci-dev", 0), FUNC("pci-host2", 1), FUNC("pci-host1", 2),
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FUNC("pci-fnc", 3), FUNC("gpio", 7)
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};
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DECL_FUNC(mt7620_pcie_func) = {
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FUNC("pcie rst", 0), FUNC("pcie refclk", 1), FUNC("gpio", 2)
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};
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DECL_FUNC(lna_a_func) = {
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FUNC("lna a", 0), FUNC("lna g", 0), FUNC("codec", 2), FUNC("gpio", 3)
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};
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DECL_FUNC(nd_sd_func) = {
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FUNC("nand", 0), FUNC("sd", 1), FUNC("gpio", 2)
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};
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DECL_FUNC(mt7620_mdio_func) = {
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FUNC("mdio", 0), FUNC("mdio refclk", 1), FUNC("gpio", 2)
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};
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DECL_FUNC(spi_refclk_func) = {
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FUNC("spi refclk", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(wled_func) = {
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FUNC("wled", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(ephy_func) = {
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FUNC("ephy", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(mt7628_gpio_func) = {
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FUNC("gpio", 0), FUNC("gpio", 1), FUNC("refclk", 2), FUNC("pcie", 3)
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};
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DECL_FUNC(mt7628_spis_func) = {
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FUNC("spis", 0), FUNC("gpio", 1), FUNC("utif", 2), FUNC("pwm", 3)
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};
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DECL_FUNC(mt7628_spi_cs1_func) = {
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FUNC("spi", 0), FUNC("gpio", 1), FUNC("refclk", 2), FUNC("-", 3)
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};
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DECL_FUNC(mt7628_i2s_func) = {
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FUNC("i2s", 0), FUNC("gpio", 1), FUNC("pcm", 2), FUNC("anttenna", 3)
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};
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DECL_FUNC(mt7628_uart0_func) = {
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FUNC("uart", 0), FUNC("gpio", 1), FUNC("-", 2), FUNC("-", 3)
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};
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DECL_FUNC(mt7628_sd_func) = {
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FUNC("sdxc", 0), FUNC("gpio", 1), FUNC("utif", 2), FUNC("jtag", 3)
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};
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DECL_FUNC(mt7628_perst_func) = {
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FUNC("perst", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(mt7628_refclk_func) = {
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FUNC("refclk", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(mt7628_i2c_func) = {
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FUNC("i2c", 0), FUNC("gpio", 1), FUNC("debug", 2), FUNC("-", 3)
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};
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DECL_FUNC(mt7628_uart1_func) = {
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FUNC("uart", 0), FUNC("gpio", 1), FUNC("pwm", 2), FUNC("sw r", 3)
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};
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DECL_FUNC(mt7628_uart2_func) = {
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FUNC("uart", 0), FUNC("gpio", 1), FUNC("pwm", 2), FUNC("sdxc", 3)
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};
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DECL_FUNC(mt7628_pwm0_func) = {
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FUNC("pwm", 0), FUNC("gpio", 1), FUNC("utif", 2), FUNC("sdxc", 3)
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};
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DECL_FUNC(mt7621_uart1_func) = {
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FUNC("uart1", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(mt7621_i2c_func) = {
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FUNC("i2c", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(mt7621_uart3_func) = {
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FUNC("uart3", 0), FUNC("gpio", 1), FUNC("i2s", 2), FUNC("spdif3", 3)
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};
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DECL_FUNC(mt7621_uart2_func) = {
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FUNC("uart2", 0), FUNC("gpio", 1), FUNC("pcm", 2), FUNC("spdif2", 3)
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};
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DECL_FUNC(mt7621_jtag_func) = {
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FUNC("jtag", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(mt7621_wdt_func) = {
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FUNC("wdt rst", 0), FUNC("gpio", 1), FUNC("wdt refclk", 2), FUNC("-", 3)
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};
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DECL_FUNC(mt7621_pcie_func) = {
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FUNC("pcie rst", 0), FUNC("gpio", 1), FUNC("pcie refclk", 2),
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FUNC("-", 3)
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};
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DECL_FUNC(mt7621_mdio_func) = {
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FUNC("mdio", 0), FUNC("gpio", 1), FUNC("-", 2), FUNC("-", 3)
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};
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DECL_FUNC(mt7621_rgmii_func) = {
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FUNC("rgmii1", 0), FUNC("rgmii2", 0), FUNC("gpio", 1)
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};
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DECL_FUNC(mt7621_spi_func) = {
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FUNC("spi", 0), FUNC("gpio", 1), FUNC("nand1", 2), FUNC("-", 3)
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};
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DECL_FUNC(mt7621_sdhci_func) = {
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FUNC("sdhci", 0), FUNC("gpio", 1), FUNC("nand1", 2), FUNC("-", 3)
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};
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/* Pin groups declarations */
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DECL_TABLE(mt7628_pintable) = {
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GROUP("gpio", SYSCTL_GPIOMODE, 0, 3, mt7628_gpio_func),
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GROUP("spis", SYSCTL_GPIOMODE, 2, 3, mt7628_spis_func),
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GROUP("spi cs1", SYSCTL_GPIOMODE, 4, 3, mt7628_spi_cs1_func),
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GROUP("i2s", SYSCTL_GPIOMODE, 6, 3, mt7628_i2s_func),
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GROUP("uart0", SYSCTL_GPIOMODE, 8, 3, mt7628_uart0_func),
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GROUP("sdmode", SYSCTL_GPIOMODE, 10, 3, mt7628_sd_func),
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GROUP("spi", SYSCTL_GPIOMODE, 12, 1, spi_func),
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GROUP("wdt", SYSCTL_GPIOMODE, 14, 1, wdt_func),
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GROUP("perst", SYSCTL_GPIOMODE, 16, 1, mt7628_perst_func),
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GROUP("refclk", SYSCTL_GPIOMODE, 18, 1, mt7628_refclk_func),
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GROUP("i2c", SYSCTL_GPIOMODE, 20, 3, mt7628_i2c_func),
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GROUP("uart1", SYSCTL_GPIOMODE, 24, 3, mt7628_uart1_func),
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GROUP("uart2", SYSCTL_GPIOMODE, 26, 3, mt7628_uart2_func),
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GROUP("pwm0", SYSCTL_GPIOMODE, 28, 3, mt7628_pwm0_func),
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GROUP("pwm1", SYSCTL_GPIOMODE, 30, 3, mt7628_pwm0_func),
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GROUP_END
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};
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DECL_TABLE(mt7621_pintable) = {
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GROUP("uart1", SYSCTL_GPIOMODE, 1, 1, mt7621_uart1_func),
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GROUP("i2c", SYSCTL_GPIOMODE, 2, 1, mt7621_i2c_func),
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GROUP("uart3", SYSCTL_GPIOMODE, 3, 3, mt7621_uart3_func),
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GROUP("uart2", SYSCTL_GPIOMODE, 5, 3, mt7621_uart2_func),
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GROUP("jtag", SYSCTL_GPIOMODE, 7, 1, mt7621_jtag_func),
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GROUP("wdt", SYSCTL_GPIOMODE, 8, 3, mt7621_wdt_func),
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GROUP("pcie", SYSCTL_GPIOMODE, 10, 3, mt7621_pcie_func),
|
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GROUP("mdio", SYSCTL_GPIOMODE, 12, 3, mt7621_mdio_func),
|
||||
GROUP("rgmii2", SYSCTL_GPIOMODE, 15, 1, mt7621_rgmii_func),
|
||||
GROUP("spi", SYSCTL_GPIOMODE, 16, 3, mt7621_spi_func),
|
||||
GROUP("sdhci", SYSCTL_GPIOMODE, 18, 3, mt7621_sdhci_func),
|
||||
GROUP("rgmii1", SYSCTL_GPIOMODE, 14, 1, mt7621_rgmii_func),
|
||||
GROUP_END
|
||||
};
|
||||
|
||||
DECL_TABLE(mt7620_pintable) = {
|
||||
GROUP("i2c", SYSCTL_GPIOMODE, 0, 1, i2c_func),
|
||||
GROUP("uartf", SYSCTL_GPIOMODE, 2, 7, uartf_func),
|
||||
GROUP("uartlite", SYSCTL_GPIOMODE, 5, 1, uartlite_func),
|
||||
GROUP("mdio", SYSCTL_GPIOMODE, 7, 3, mt7620_mdio_func),
|
||||
GROUP("rgmii1", SYSCTL_GPIOMODE, 9, 1, rgmii_func),
|
||||
GROUP("rgmii2", SYSCTL_GPIOMODE, 10, 1, rgmii_func),
|
||||
GROUP("spi", SYSCTL_GPIOMODE, 11, 1, spi_func),
|
||||
GROUP("spi refclk", SYSCTL_GPIOMODE, 12, 1, spi_refclk_func),
|
||||
GROUP("wled", SYSCTL_GPIOMODE, 13, 1, wled_func),
|
||||
GROUP("ephy", SYSCTL_GPIOMODE, 15, 1, ephy_func),
|
||||
GROUP("pcie", SYSCTL_GPIOMODE, 16, 3, mt7620_pcie_func),
|
||||
GROUP("nd_sd", SYSCTL_GPIOMODE, 18, 3, nd_sd_func),
|
||||
GROUP("pa", SYSCTL_GPIOMODE, 20, 1, pa_func),
|
||||
GROUP("wdt", SYSCTL_GPIOMODE, 21, 3, wdt_func),
|
||||
GROUP_END
|
||||
};
|
||||
|
||||
DECL_TABLE(rt3050_pintable) = {
|
||||
GROUP("i2c", SYSCTL_GPIOMODE, 0, 1, i2c_func),
|
||||
GROUP("spi", SYSCTL_GPIOMODE, 1, 1, spi_func),
|
||||
GROUP("uartf", SYSCTL_GPIOMODE, 2, 7, uartf_func),
|
||||
GROUP("uartlite", SYSCTL_GPIOMODE, 5, 1, uartlite_func),
|
||||
GROUP("jtag", SYSCTL_GPIOMODE, 6, 1, jtag_func),
|
||||
GROUP("mdio", SYSCTL_GPIOMODE, 7, 1, mdio_func),
|
||||
GROUP("sdram", SYSCTL_GPIOMODE, 8, 1, sdram_func),
|
||||
GROUP("rgmii", SYSCTL_GPIOMODE, 9, 1, rgmii_func),
|
||||
GROUP_END
|
||||
};
|
||||
|
||||
DECL_TABLE(rt3352_pintable) = {
|
||||
GROUP("i2c", SYSCTL_GPIOMODE, 0, 1, i2c_func),
|
||||
GROUP("spi", SYSCTL_GPIOMODE, 1, 1, i2c_func),
|
||||
GROUP("uartf", SYSCTL_GPIOMODE, 2, 7, uartf_func),
|
||||
GROUP("uartlite", SYSCTL_GPIOMODE, 5, 1, uartlite_func),
|
||||
GROUP("jtag", SYSCTL_GPIOMODE, 6, 1, jtag_func),
|
||||
GROUP("mdio", SYSCTL_GPIOMODE, 7, 1, mdio_func),
|
||||
GROUP("rgmii", SYSCTL_GPIOMODE, 9, 1, rgmii_func),
|
||||
GROUP("led", SYSCTL_GPIOMODE, 14, 3, led_func),
|
||||
GROUP("lna", SYSCTL_GPIOMODE, 18, 1, lna_func),
|
||||
GROUP("pa", SYSCTL_GPIOMODE, 20, 1, pa_func),
|
||||
GROUP("spi_cs1", SYSCTL_GPIOMODE, 21, 3, cs1_func),
|
||||
GROUP_END
|
||||
};
|
||||
|
||||
DECL_TABLE(rt3883_pintable) = {
|
||||
GROUP("i2c", SYSCTL_GPIOMODE, 0, 1, i2c_func),
|
||||
GROUP("spi", SYSCTL_GPIOMODE, 1, 1, spi_func),
|
||||
GROUP("uartf", SYSCTL_GPIOMODE, 2, 7, uartf_func),
|
||||
GROUP("uartlite", SYSCTL_GPIOMODE, 5, 1, uartlite_func),
|
||||
GROUP("jtag", SYSCTL_GPIOMODE, 6, 1, jtag_func),
|
||||
GROUP("mdio", SYSCTL_GPIOMODE, 7, 1, mdio_func),
|
||||
GROUP("lna a", SYSCTL_GPIOMODE, 16, 3, lna_a_func),
|
||||
GROUP("lna g", SYSCTL_GPIOMODE, 18, 3, lna_a_func),
|
||||
GROUP("pci", SYSCTL_GPIOMODE, 11, 7, rt3883_pci_func),
|
||||
GROUP("ge1", SYSCTL_GPIOMODE, 9, 1, gex_func),
|
||||
GROUP("ge2", SYSCTL_GPIOMODE, 10, 1, gex_func),
|
||||
GROUP_END
|
||||
};
|
||||
|
||||
DECL_TABLE(rt5350_pintable) = {
|
||||
GROUP("i2c", SYSCTL_GPIOMODE, 0, 1, i2c_func),
|
||||
GROUP("spi", SYSCTL_GPIOMODE, 1, 1, spi_func),
|
||||
GROUP("uartf", SYSCTL_GPIOMODE, 2, 7, uartf_func),
|
||||
GROUP("uartlite", SYSCTL_GPIOMODE, 5, 1, uartlite_func),
|
||||
GROUP("jtag", SYSCTL_GPIOMODE, 6, 1, jtag_func),
|
||||
GROUP("led", SYSCTL_GPIOMODE, 14, 3, led_func),
|
||||
GROUP("spi_cs1", SYSCTL_GPIOMODE, 21, 3, cs1_func),
|
||||
GROUP_END
|
||||
};
|
||||
|
||||
#endif /* _MTK_PINCTRL_H_ */
|
||||
Loading…
Reference in New Issue
Block a user