1e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin/* 2e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin * linux/drivers/pinctrl/pinmux-falcon.c 3e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin * based on linux/drivers/pinctrl/pinmux-pxa910.c 4e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin * 5e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin * This program is free software; you can redistribute it and/or modify it 6e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin * under the terms of the GNU General Public License version 2 as published 7e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin * by the Free Software Foundation. 8e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin * 9e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin * Copyright (C) 2012 Thomas Langer <thomas.langer@lantiq.com> 10e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin * Copyright (C) 2012 John Crispin <blogic@openwrt.org> 11e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin */ 12e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 13e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#include <linux/gpio.h> 14e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#include <linux/interrupt.h> 15e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#include <linux/slab.h> 16e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#include <linux/export.h> 17e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#include <linux/err.h> 18e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#include <linux/module.h> 19e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#include <linux/of.h> 20e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#include <linux/of_platform.h> 21e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#include <linux/of_address.h> 22e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#include <linux/of_gpio.h> 23e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#include <linux/platform_device.h> 24e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 25e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#include "pinctrl-lantiq.h" 26e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 27e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#include <lantiq_soc.h> 28e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 29e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin/* Multiplexer Control Register */ 30e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define LTQ_PADC_MUX(x) (x * 0x4) 31e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin/* Pull Up Enable Register */ 32e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define LTQ_PADC_PUEN 0x80 33e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin/* Pull Down Enable Register */ 34e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define LTQ_PADC_PDEN 0x84 35e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin/* Slew Rate Control Register */ 36e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define LTQ_PADC_SRC 0x88 37e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin/* Drive Current Control Register */ 38e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define LTQ_PADC_DCC 0x8C 39e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin/* Pad Control Availability Register */ 40e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define LTQ_PADC_AVAIL 0xF0 41e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 42e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define pad_r32(p, reg) ltq_r32(p + reg) 43e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define pad_w32(p, val, reg) ltq_w32(val, p + reg) 44e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define pad_w32_mask(c, clear, set, reg) \ 45e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pad_w32(c, (pad_r32(c, reg) & ~(clear)) | (set), reg) 46e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 47e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define pad_getbit(m, r, p) (!!(ltq_r32(m + r) & (1 << p))) 48e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 49e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define PORTS 5 50e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define PINS 32 51e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define PORT(x) (x / PINS) 52e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define PORT_PIN(x) (x % PINS) 53e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 54e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define MFP_FALCON(a, f0, f1, f2, f3) \ 55e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ \ 56e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .name = #a, \ 57e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pin = a, \ 58e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .func = { \ 59e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_##f0, \ 60e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_##f1, \ 61e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_##f2, \ 62e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_##f3, \ 63e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin }, \ 64e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 65e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 66e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin#define GRP_MUX(a, m, p) \ 67e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ \ 68e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .name = a, \ 69e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .mux = FALCON_MUX_##m, \ 70e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pins = p, \ 71e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .npins = ARRAY_SIZE(p), \ 72e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 73e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 74e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinenum falcon_mux { 75e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_GPIO = 0, 76e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_RST, 77e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_NTR, 7889ebefe3890e44516a99fb3d21d015ec3b75e50cThomas Langer FALCON_MUX_PPS, 79e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_MDIO, 80e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_LED, 81e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_SPI, 82e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_ASC, 83e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_I2C, 84e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_HOSTIF, 85e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_SLIC, 86e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_JTAG, 87e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_PCM, 88e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_MII, 89e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_PHY, 90e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_NONE = 0xffff, 91e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 92e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 93e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct pinctrl_pin_desc falcon_pads[PORTS * PINS]; 94e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic int pad_count[PORTS]; 95e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 96e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic void lantiq_load_pin_desc(struct pinctrl_pin_desc *d, int bank, int len) 97e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 98e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int base = bank * PINS; 99e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int i; 100e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 101e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin for (i = 0; i < len; i++) { 102e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin /* strlen("ioXYZ") + 1 = 6 */ 103e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin char *name = kzalloc(6, GFP_KERNEL); 104e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin snprintf(name, 6, "io%d", base + i); 105e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin d[i].number = base + i; 106e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin d[i].name = name; 107e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin } 108e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pad_count[bank] = len; 109e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 110e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 111e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct ltq_mfp_pin falcon_mfp[] = { 112e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin /* pin f0 f1 f2 f3 */ 113e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO0, RST, GPIO, NONE, NONE), 114e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO1, GPIO, GPIO, NONE, NONE), 115e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO2, GPIO, GPIO, NONE, NONE), 116e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO3, GPIO, GPIO, NONE, NONE), 117e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO4, NTR, GPIO, NONE, NONE), 11889ebefe3890e44516a99fb3d21d015ec3b75e50cThomas Langer MFP_FALCON(GPIO5, NTR, GPIO, PPS, NONE), 119e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO6, RST, GPIO, NONE, NONE), 120e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO7, MDIO, GPIO, NONE, NONE), 121e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO8, MDIO, GPIO, NONE, NONE), 122e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO9, LED, GPIO, NONE, NONE), 123e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO10, LED, GPIO, NONE, NONE), 124e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO11, LED, GPIO, NONE, NONE), 125e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO12, LED, GPIO, NONE, NONE), 126e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO13, LED, GPIO, NONE, NONE), 127e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO14, LED, GPIO, NONE, NONE), 128e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO32, ASC, GPIO, NONE, NONE), 129e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO33, ASC, GPIO, NONE, NONE), 130e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO34, SPI, GPIO, NONE, NONE), 131e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO35, SPI, GPIO, NONE, NONE), 132e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO36, SPI, GPIO, NONE, NONE), 133e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO37, SPI, GPIO, NONE, NONE), 134e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO38, SPI, GPIO, NONE, NONE), 135e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO39, I2C, GPIO, NONE, NONE), 136e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO40, I2C, GPIO, NONE, NONE), 137e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO41, HOSTIF, GPIO, HOSTIF, JTAG), 138e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO42, HOSTIF, GPIO, HOSTIF, NONE), 139e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO43, SLIC, GPIO, NONE, NONE), 140e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO44, SLIC, GPIO, PCM, ASC), 141e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO45, SLIC, GPIO, PCM, ASC), 142e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO64, MII, GPIO, NONE, NONE), 143e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO65, MII, GPIO, NONE, NONE), 144e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO66, MII, GPIO, NONE, NONE), 145e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO67, MII, GPIO, NONE, NONE), 146e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO68, MII, GPIO, NONE, NONE), 147e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO69, MII, GPIO, NONE, NONE), 148e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO70, MII, GPIO, NONE, NONE), 149e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO71, MII, GPIO, NONE, NONE), 150e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO72, MII, GPIO, NONE, NONE), 151e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO73, MII, GPIO, NONE, NONE), 152e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO74, MII, GPIO, NONE, NONE), 153e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO75, MII, GPIO, NONE, NONE), 154e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO76, MII, GPIO, NONE, NONE), 155e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO77, MII, GPIO, NONE, NONE), 156e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO78, MII, GPIO, NONE, NONE), 157e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO79, MII, GPIO, NONE, NONE), 158e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO80, MII, GPIO, NONE, NONE), 159e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO81, MII, GPIO, NONE, NONE), 160e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO82, MII, GPIO, NONE, NONE), 161e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO83, MII, GPIO, NONE, NONE), 162e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO84, MII, GPIO, NONE, NONE), 163e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO85, MII, GPIO, NONE, NONE), 164e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO86, MII, GPIO, NONE, NONE), 165e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO87, MII, GPIO, NONE, NONE), 166e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO88, PHY, GPIO, NONE, NONE), 167e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 168e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 169e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_por[] = {GPIO0}; 170e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_ntr[] = {GPIO4}; 171e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_ntr8k[] = {GPIO5}; 17289ebefe3890e44516a99fb3d21d015ec3b75e50cThomas Langerstatic const unsigned pins_pps[] = {GPIO5}; 173e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_hrst[] = {GPIO6}; 174e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_mdio[] = {GPIO7, GPIO8}; 17541228b7b336e4445f7a908bc2834cd4ef31d195fJohn Crispinstatic const unsigned pins_bled[] = {GPIO9, GPIO10, GPIO11, 176e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GPIO12, GPIO13, GPIO14}; 177e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_asc0[] = {GPIO32, GPIO33}; 178e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_spi[] = {GPIO34, GPIO35, GPIO36}; 179e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_spi_cs0[] = {GPIO37}; 180e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_spi_cs1[] = {GPIO38}; 181e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_i2c[] = {GPIO39, GPIO40}; 182e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_jtag[] = {GPIO41}; 183e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_slic[] = {GPIO43, GPIO44, GPIO45}; 184e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_pcm[] = {GPIO44, GPIO45}; 185e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_asc1[] = {GPIO44, GPIO45}; 186e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 187e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct ltq_pin_group falcon_grps[] = { 188e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("por", RST, pins_por), 189e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("ntr", NTR, pins_ntr), 190e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("ntr8k", NTR, pins_ntr8k), 19189ebefe3890e44516a99fb3d21d015ec3b75e50cThomas Langer GRP_MUX("pps", PPS, pins_pps), 192e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("hrst", RST, pins_hrst), 193e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("mdio", MDIO, pins_mdio), 194e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("bootled", LED, pins_bled), 195e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("asc0", ASC, pins_asc0), 196e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("spi", SPI, pins_spi), 197e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("spi cs0", SPI, pins_spi_cs0), 198e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("spi cs1", SPI, pins_spi_cs1), 199e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("i2c", I2C, pins_i2c), 200e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("jtag", JTAG, pins_jtag), 201e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("slic", SLIC, pins_slic), 202e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("pcm", PCM, pins_pcm), 203e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("asc1", ASC, pins_asc1), 204e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 205e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 206e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_rst_grps[] = {"por", "hrst"}; 20789ebefe3890e44516a99fb3d21d015ec3b75e50cThomas Langerstatic const char * const ltq_ntr_grps[] = {"ntr", "ntr8k", "pps"}; 208e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_mdio_grps[] = {"mdio"}; 209e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_bled_grps[] = {"bootled"}; 210e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_asc_grps[] = {"asc0", "asc1"}; 211e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_spi_grps[] = {"spi", "spi cs0", "spi cs1"}; 212e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_i2c_grps[] = {"i2c"}; 213e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_jtag_grps[] = {"jtag"}; 214e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_slic_grps[] = {"slic"}; 215e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_pcm_grps[] = {"pcm"}; 216e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 217e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct ltq_pmx_func falcon_funcs[] = { 218e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"rst", ARRAY_AND_SIZE(ltq_rst_grps)}, 219e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"ntr", ARRAY_AND_SIZE(ltq_ntr_grps)}, 220e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"mdio", ARRAY_AND_SIZE(ltq_mdio_grps)}, 221e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"led", ARRAY_AND_SIZE(ltq_bled_grps)}, 222e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"asc", ARRAY_AND_SIZE(ltq_asc_grps)}, 223e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"spi", ARRAY_AND_SIZE(ltq_spi_grps)}, 224e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"i2c", ARRAY_AND_SIZE(ltq_i2c_grps)}, 225e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"jtag", ARRAY_AND_SIZE(ltq_jtag_grps)}, 226e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"slic", ARRAY_AND_SIZE(ltq_slic_grps)}, 227e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"pcm", ARRAY_AND_SIZE(ltq_pcm_grps)}, 228e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 229e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 230e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 231e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 232e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 233e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin/* --------- pinconf related code --------- */ 234e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic int falcon_pinconf_group_get(struct pinctrl_dev *pctrldev, 235e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin unsigned group, unsigned long *config) 236e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 237e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return -ENOTSUPP; 238e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 239e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 240e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic int falcon_pinconf_group_set(struct pinctrl_dev *pctrldev, 24103b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin unsigned group, unsigned long *configs, 24203b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin unsigned num_configs) 243e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 244e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return -ENOTSUPP; 245e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 246e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 247e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic int falcon_pinconf_get(struct pinctrl_dev *pctrldev, 248e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin unsigned pin, unsigned long *config) 249e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 250e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); 251e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin enum ltq_pinconf_param param = LTQ_PINCONF_UNPACK_PARAM(*config); 252e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin void __iomem *mem = info->membase[PORT(pin)]; 253e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 254e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin switch (param) { 255e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin case LTQ_PINCONF_PARAM_DRIVE_CURRENT: 256e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin *config = LTQ_PINCONF_PACK(param, 257e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin !!pad_getbit(mem, LTQ_PADC_DCC, PORT_PIN(pin))); 258e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin break; 259e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 260e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin case LTQ_PINCONF_PARAM_SLEW_RATE: 261e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin *config = LTQ_PINCONF_PACK(param, 262e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin !!pad_getbit(mem, LTQ_PADC_SRC, PORT_PIN(pin))); 263e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin break; 264e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 265e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin case LTQ_PINCONF_PARAM_PULL: 266e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (pad_getbit(mem, LTQ_PADC_PDEN, PORT_PIN(pin))) 267e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin *config = LTQ_PINCONF_PACK(param, 1); 268e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin else if (pad_getbit(mem, LTQ_PADC_PUEN, PORT_PIN(pin))) 269e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin *config = LTQ_PINCONF_PACK(param, 2); 270e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin else 271e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin *config = LTQ_PINCONF_PACK(param, 0); 272e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 273e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin break; 274e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 275e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin default: 276e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return -ENOTSUPP; 277e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin } 278e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 279e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return 0; 280e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 281e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 282e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic int falcon_pinconf_set(struct pinctrl_dev *pctrldev, 28303b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin unsigned pin, unsigned long *configs, 28403b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin unsigned num_configs) 285e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 28603b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin enum ltq_pinconf_param param; 28703b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin int arg; 288e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); 289e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin void __iomem *mem = info->membase[PORT(pin)]; 290e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin u32 reg; 29103b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin int i; 292e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 29303b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin for (i = 0; i < num_configs; i++) { 29403b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin param = LTQ_PINCONF_UNPACK_PARAM(configs[i]); 29503b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin arg = LTQ_PINCONF_UNPACK_ARG(configs[i]); 29603b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin 29703b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin switch (param) { 29803b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin case LTQ_PINCONF_PARAM_DRIVE_CURRENT: 29903b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin reg = LTQ_PADC_DCC; 30003b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin break; 30103b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin 30203b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin case LTQ_PINCONF_PARAM_SLEW_RATE: 30303b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin reg = LTQ_PADC_SRC; 30403b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin break; 30503b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin 30603b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin case LTQ_PINCONF_PARAM_PULL: 30703b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin if (arg == 1) 30803b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin reg = LTQ_PADC_PDEN; 30903b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin else 31003b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin reg = LTQ_PADC_PUEN; 31103b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin break; 31203b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin 31303b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin default: 31403b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin pr_err("%s: Invalid config param %04x\n", 31503b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin pinctrl_dev_get_name(pctrldev), param); 31603b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin return -ENOTSUPP; 31703b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin } 31803b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin 31903b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin pad_w32(mem, BIT(PORT_PIN(pin)), reg); 32003b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin if (!(pad_r32(mem, reg) & BIT(PORT_PIN(pin)))) 32103b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin return -ENOTSUPP; 32203b054e9696c3cbd3d5905ec96da15acd0a2fe8dSherman Yin } /* for each config */ 323e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 324e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return 0; 325e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 326e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 327e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic void falcon_pinconf_dbg_show(struct pinctrl_dev *pctrldev, 328e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct seq_file *s, unsigned offset) 329e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 330c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin unsigned long config; 331c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin struct pin_desc *desc; 332c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin 333c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); 334c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin int port = PORT(offset); 335c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin 336c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin seq_printf(s, " (port %d) mux %d -- ", port, 337c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin pad_r32(info->membase[port], LTQ_PADC_MUX(PORT_PIN(offset)))); 338c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin 339c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin config = LTQ_PINCONF_PACK(LTQ_PINCONF_PARAM_PULL, 0); 340c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin if (!falcon_pinconf_get(pctrldev, offset, &config)) 341c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin seq_printf(s, "pull %d ", 342c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin (int)LTQ_PINCONF_UNPACK_ARG(config)); 343c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin 344c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin config = LTQ_PINCONF_PACK(LTQ_PINCONF_PARAM_DRIVE_CURRENT, 0); 345c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin if (!falcon_pinconf_get(pctrldev, offset, &config)) 346c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin seq_printf(s, "drive-current %d ", 347c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin (int)LTQ_PINCONF_UNPACK_ARG(config)); 348c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin 349c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin config = LTQ_PINCONF_PACK(LTQ_PINCONF_PARAM_SLEW_RATE, 0); 350c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin if (!falcon_pinconf_get(pctrldev, offset, &config)) 351c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin seq_printf(s, "slew-rate %d ", 352c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin (int)LTQ_PINCONF_UNPACK_ARG(config)); 353c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin 354c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin desc = pin_desc_get(pctrldev, offset); 355c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin if (desc) { 356c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin if (desc->gpio_owner) 357c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin seq_printf(s, " owner: %s", desc->gpio_owner); 358c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin } else { 359c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin seq_printf(s, " not registered"); 360c58bdc36bc111cf3d8f1a27b68899ea3caf2e12bJohn Crispin } 361e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 362e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 363e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic void falcon_pinconf_group_dbg_show(struct pinctrl_dev *pctrldev, 364e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct seq_file *s, unsigned selector) 365e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 366e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 367e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 368022ab148d28e8466e45d28552224e3029f1cccd8Laurent Pinchartstatic const struct pinconf_ops falcon_pinconf_ops = { 369e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pin_config_get = falcon_pinconf_get, 370e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pin_config_set = falcon_pinconf_set, 371e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pin_config_group_get = falcon_pinconf_group_get, 372e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pin_config_group_set = falcon_pinconf_group_set, 373e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pin_config_dbg_show = falcon_pinconf_dbg_show, 374e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pin_config_group_dbg_show = falcon_pinconf_group_dbg_show, 375e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 376e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 377e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct pinctrl_desc falcon_pctrl_desc = { 378e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .owner = THIS_MODULE, 379e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pins = falcon_pads, 380e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .confops = &falcon_pinconf_ops, 381e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 382e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 383e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic inline int falcon_mux_apply(struct pinctrl_dev *pctrldev, 384e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int mfp, int mux) 385e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 386e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); 387e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int port = PORT(info->mfp[mfp].pin); 388e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 389e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if ((port >= PORTS) || (!info->membase[port])) 390e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return -ENODEV; 391e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 392e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pad_w32(info->membase[port], mux, 393e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin LTQ_PADC_MUX(PORT_PIN(info->mfp[mfp].pin))); 394e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return 0; 395e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 396e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 397e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const struct ltq_cfg_param falcon_cfg_params[] = { 398e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"lantiq,pull", LTQ_PINCONF_PARAM_PULL}, 399e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"lantiq,drive-current", LTQ_PINCONF_PARAM_DRIVE_CURRENT}, 400e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"lantiq,slew-rate", LTQ_PINCONF_PARAM_SLEW_RATE}, 401e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 402e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 403e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct ltq_pinmux_info falcon_info = { 404e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .desc = &falcon_pctrl_desc, 405e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .apply_mux = falcon_mux_apply, 40677ef406272095691e84c85bebef0b225b5096e8dJohn Crispin .params = falcon_cfg_params, 40777ef406272095691e84c85bebef0b225b5096e8dJohn Crispin .num_params = ARRAY_SIZE(falcon_cfg_params), 408e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 409e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 410e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 411e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 412e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 413e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin/* --------- register the pinctrl layer --------- */ 414e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 415e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinint pinctrl_falcon_get_range_size(int id) 416e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 417e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin u32 avail; 418e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 419e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if ((id >= PORTS) || (!falcon_info.membase[id])) 420e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return -EINVAL; 421e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 422e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin avail = pad_r32(falcon_info.membase[id], LTQ_PADC_AVAIL); 423e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 424e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return fls(avail); 425e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 426e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 427e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinvoid pinctrl_falcon_add_gpio_range(struct pinctrl_gpio_range *range) 428e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 429e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pinctrl_add_gpio_range(falcon_info.pctrl, range); 430e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 431e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 432e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic int pinctrl_falcon_probe(struct platform_device *pdev) 433e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 434e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct device_node *np; 435e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int pad_count = 0; 436e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int ret = 0; 437e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 438e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin /* load and remap the pad resources of the different banks */ 439e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin for_each_compatible_node(np, NULL, "lantiq,pad-falcon") { 440e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct platform_device *ppdev = of_find_device_by_node(np); 441e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin const __be32 *bank = of_get_property(np, "lantiq,bank", NULL); 442e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct resource res; 443e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin u32 avail; 444e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int pins; 445e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 446a8ae367f40867fde80c90484c90b96c3968c224bJohn Crispin if (!of_device_is_available(np)) 447a8ae367f40867fde80c90484c90b96c3968c224bJohn Crispin continue; 448a8ae367f40867fde80c90484c90b96c3968c224bJohn Crispin 449e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (!ppdev) { 450e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin dev_err(&pdev->dev, "failed to find pad pdev\n"); 451e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin continue; 452e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin } 453e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (!bank || *bank >= PORTS) 454e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin continue; 455e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (of_address_to_resource(np, 0, &res)) 456e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin continue; 457e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.clk[*bank] = clk_get(&ppdev->dev, NULL); 458e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (IS_ERR(falcon_info.clk[*bank])) { 459e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin dev_err(&ppdev->dev, "failed to get clock\n"); 460e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return PTR_ERR(falcon_info.clk[*bank]); 461e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin } 4629e0c1fb29a7c257a31c321c2437617b6b4d66168Thierry Reding falcon_info.membase[*bank] = devm_ioremap_resource(&pdev->dev, 4639e0c1fb29a7c257a31c321c2437617b6b4d66168Thierry Reding &res); 4649e0c1fb29a7c257a31c321c2437617b6b4d66168Thierry Reding if (IS_ERR(falcon_info.membase[*bank])) 4659e0c1fb29a7c257a31c321c2437617b6b4d66168Thierry Reding return PTR_ERR(falcon_info.membase[*bank]); 4669e0c1fb29a7c257a31c321c2437617b6b4d66168Thierry Reding 467e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin avail = pad_r32(falcon_info.membase[*bank], 468e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin LTQ_PADC_AVAIL); 469e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pins = fls(avail); 470e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin lantiq_load_pin_desc(&falcon_pads[pad_count], *bank, pins); 471e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pad_count += pins; 472e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin clk_enable(falcon_info.clk[*bank]); 473e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin dev_dbg(&pdev->dev, "found %s with %d pads\n", 474e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin res.name, pins); 475e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin } 476e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin dev_dbg(&pdev->dev, "found a total of %d pads\n", pad_count); 477e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_pctrl_desc.name = dev_name(&pdev->dev); 478e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_pctrl_desc.npins = pad_count; 479e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 480e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.mfp = falcon_mfp; 481e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.num_mfp = ARRAY_SIZE(falcon_mfp); 482e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.grps = falcon_grps; 483e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.num_grps = ARRAY_SIZE(falcon_grps); 484e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.funcs = falcon_funcs; 485e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.num_funcs = ARRAY_SIZE(falcon_funcs); 486e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 487e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin ret = ltq_pinctrl_register(pdev, &falcon_info); 488e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (!ret) 489e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin dev_info(&pdev->dev, "Init done\n"); 490e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return ret; 491e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 492e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 493e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const struct of_device_id falcon_match[] = { 494e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin { .compatible = "lantiq,pinctrl-falcon" }, 495e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {}, 496e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 497e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John CrispinMODULE_DEVICE_TABLE(of, falcon_match); 498e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 499e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct platform_driver pinctrl_falcon_driver = { 500e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .probe = pinctrl_falcon_probe, 501e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .driver = { 502e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .name = "pinctrl-falcon", 503e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .owner = THIS_MODULE, 504e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .of_match_table = falcon_match, 505e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin }, 506e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 507e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 508e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinint __init pinctrl_falcon_init(void) 509e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 510e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return platform_driver_register(&pinctrl_falcon_driver); 511e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 512e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 513e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispincore_initcall_sync(pinctrl_falcon_init); 514