pinctrl-falcon.c revision 41228b7b336e4445f7a908bc2834cd4ef31d195f
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, 78e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_MDIO, 79e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_LED, 80e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_SPI, 81e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_ASC, 82e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_I2C, 83e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_HOSTIF, 84e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_SLIC, 85e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_JTAG, 86e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_PCM, 87e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_MII, 88e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_PHY, 89e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin FALCON_MUX_NONE = 0xffff, 90e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 91e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 92e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct pinctrl_pin_desc falcon_pads[PORTS * PINS]; 93e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic int pad_count[PORTS]; 94e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 95e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic void lantiq_load_pin_desc(struct pinctrl_pin_desc *d, int bank, int len) 96e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 97e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int base = bank * PINS; 98e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int i; 99e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 100e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin for (i = 0; i < len; i++) { 101e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin /* strlen("ioXYZ") + 1 = 6 */ 102e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin char *name = kzalloc(6, GFP_KERNEL); 103e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin snprintf(name, 6, "io%d", base + i); 104e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin d[i].number = base + i; 105e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin d[i].name = name; 106e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin } 107e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pad_count[bank] = len; 108e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 109e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 110e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct ltq_mfp_pin falcon_mfp[] = { 111e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin /* pin f0 f1 f2 f3 */ 112e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO0, RST, GPIO, NONE, NONE), 113e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO1, GPIO, GPIO, NONE, NONE), 114e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO2, GPIO, GPIO, NONE, NONE), 115e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO3, GPIO, GPIO, NONE, NONE), 116e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO4, NTR, GPIO, NONE, NONE), 117e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO5, NTR, GPIO, NONE, NONE), 118e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO6, RST, GPIO, NONE, NONE), 119e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO7, MDIO, GPIO, NONE, NONE), 120e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO8, MDIO, GPIO, NONE, NONE), 121e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO9, LED, GPIO, NONE, NONE), 122e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO10, LED, GPIO, NONE, NONE), 123e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO11, LED, GPIO, NONE, NONE), 124e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO12, LED, GPIO, NONE, NONE), 125e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO13, LED, GPIO, NONE, NONE), 126e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO14, LED, GPIO, NONE, NONE), 127e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO32, ASC, GPIO, NONE, NONE), 128e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO33, ASC, GPIO, NONE, NONE), 129e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO34, SPI, GPIO, NONE, NONE), 130e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO35, SPI, GPIO, NONE, NONE), 131e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO36, SPI, GPIO, NONE, NONE), 132e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO37, SPI, GPIO, NONE, NONE), 133e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO38, SPI, GPIO, NONE, NONE), 134e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO39, I2C, GPIO, NONE, NONE), 135e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO40, I2C, GPIO, NONE, NONE), 136e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO41, HOSTIF, GPIO, HOSTIF, JTAG), 137e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO42, HOSTIF, GPIO, HOSTIF, NONE), 138e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO43, SLIC, GPIO, NONE, NONE), 139e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO44, SLIC, GPIO, PCM, ASC), 140e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO45, SLIC, GPIO, PCM, ASC), 141e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO64, MII, GPIO, NONE, NONE), 142e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO65, MII, GPIO, NONE, NONE), 143e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO66, MII, GPIO, NONE, NONE), 144e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO67, MII, GPIO, NONE, NONE), 145e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO68, MII, GPIO, NONE, NONE), 146e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO69, MII, GPIO, NONE, NONE), 147e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO70, MII, GPIO, NONE, NONE), 148e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO71, MII, GPIO, NONE, NONE), 149e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO72, MII, GPIO, NONE, NONE), 150e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO73, MII, GPIO, NONE, NONE), 151e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO74, MII, GPIO, NONE, NONE), 152e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO75, MII, GPIO, NONE, NONE), 153e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO76, MII, GPIO, NONE, NONE), 154e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO77, MII, GPIO, NONE, NONE), 155e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO78, MII, GPIO, NONE, NONE), 156e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO79, MII, GPIO, NONE, NONE), 157e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO80, MII, GPIO, NONE, NONE), 158e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO81, MII, GPIO, NONE, NONE), 159e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO82, MII, GPIO, NONE, NONE), 160e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO83, MII, GPIO, NONE, NONE), 161e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO84, MII, GPIO, NONE, NONE), 162e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO85, MII, GPIO, NONE, NONE), 163e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO86, MII, GPIO, NONE, NONE), 164e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO87, MII, GPIO, NONE, NONE), 165e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin MFP_FALCON(GPIO88, PHY, GPIO, NONE, NONE), 166e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 167e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 168e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_por[] = {GPIO0}; 169e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_ntr[] = {GPIO4}; 170e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_ntr8k[] = {GPIO5}; 171e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_hrst[] = {GPIO6}; 172e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_mdio[] = {GPIO7, GPIO8}; 17341228b7b336e4445f7a908bc2834cd4ef31d195fJohn Crispinstatic const unsigned pins_bled[] = {GPIO9, GPIO10, GPIO11, 174e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GPIO12, GPIO13, GPIO14}; 175e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_asc0[] = {GPIO32, GPIO33}; 176e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_spi[] = {GPIO34, GPIO35, GPIO36}; 177e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_spi_cs0[] = {GPIO37}; 178e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_spi_cs1[] = {GPIO38}; 179e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_i2c[] = {GPIO39, GPIO40}; 180e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_jtag[] = {GPIO41}; 181e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_slic[] = {GPIO43, GPIO44, GPIO45}; 182e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_pcm[] = {GPIO44, GPIO45}; 183e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const unsigned pins_asc1[] = {GPIO44, GPIO45}; 184e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 185e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct ltq_pin_group falcon_grps[] = { 186e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("por", RST, pins_por), 187e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("ntr", NTR, pins_ntr), 188e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("ntr8k", NTR, pins_ntr8k), 189e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("hrst", RST, pins_hrst), 190e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("mdio", MDIO, pins_mdio), 191e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("bootled", LED, pins_bled), 192e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("asc0", ASC, pins_asc0), 193e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("spi", SPI, pins_spi), 194e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("spi cs0", SPI, pins_spi_cs0), 195e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("spi cs1", SPI, pins_spi_cs1), 196e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("i2c", I2C, pins_i2c), 197e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("jtag", JTAG, pins_jtag), 198e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("slic", SLIC, pins_slic), 199e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("pcm", PCM, pins_pcm), 200e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin GRP_MUX("asc1", ASC, pins_asc1), 201e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 202e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 203e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_rst_grps[] = {"por", "hrst"}; 204e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_ntr_grps[] = {"ntr", "ntr8k"}; 205e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_mdio_grps[] = {"mdio"}; 206e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_bled_grps[] = {"bootled"}; 207e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_asc_grps[] = {"asc0", "asc1"}; 208e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_spi_grps[] = {"spi", "spi cs0", "spi cs1"}; 209e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_i2c_grps[] = {"i2c"}; 210e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_jtag_grps[] = {"jtag"}; 211e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_slic_grps[] = {"slic"}; 212e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const char * const ltq_pcm_grps[] = {"pcm"}; 213e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 214e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct ltq_pmx_func falcon_funcs[] = { 215e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"rst", ARRAY_AND_SIZE(ltq_rst_grps)}, 216e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"ntr", ARRAY_AND_SIZE(ltq_ntr_grps)}, 217e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"mdio", ARRAY_AND_SIZE(ltq_mdio_grps)}, 218e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"led", ARRAY_AND_SIZE(ltq_bled_grps)}, 219e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"asc", ARRAY_AND_SIZE(ltq_asc_grps)}, 220e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"spi", ARRAY_AND_SIZE(ltq_spi_grps)}, 221e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"i2c", ARRAY_AND_SIZE(ltq_i2c_grps)}, 222e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"jtag", ARRAY_AND_SIZE(ltq_jtag_grps)}, 223e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"slic", ARRAY_AND_SIZE(ltq_slic_grps)}, 224e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"pcm", ARRAY_AND_SIZE(ltq_pcm_grps)}, 225e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 226e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 227e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 228e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 229e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 230e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin/* --------- pinconf related code --------- */ 231e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic int falcon_pinconf_group_get(struct pinctrl_dev *pctrldev, 232e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin unsigned group, unsigned long *config) 233e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 234e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return -ENOTSUPP; 235e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 236e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 237e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic int falcon_pinconf_group_set(struct pinctrl_dev *pctrldev, 238e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin unsigned group, unsigned long config) 239e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 240e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return -ENOTSUPP; 241e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 242e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 243e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic int falcon_pinconf_get(struct pinctrl_dev *pctrldev, 244e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin unsigned pin, unsigned long *config) 245e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 246e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); 247e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin enum ltq_pinconf_param param = LTQ_PINCONF_UNPACK_PARAM(*config); 248e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin void __iomem *mem = info->membase[PORT(pin)]; 249e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 250e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin switch (param) { 251e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin case LTQ_PINCONF_PARAM_DRIVE_CURRENT: 252e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin *config = LTQ_PINCONF_PACK(param, 253e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin !!pad_getbit(mem, LTQ_PADC_DCC, PORT_PIN(pin))); 254e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin break; 255e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 256e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin case LTQ_PINCONF_PARAM_SLEW_RATE: 257e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin *config = LTQ_PINCONF_PACK(param, 258e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin !!pad_getbit(mem, LTQ_PADC_SRC, PORT_PIN(pin))); 259e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin break; 260e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 261e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin case LTQ_PINCONF_PARAM_PULL: 262e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (pad_getbit(mem, LTQ_PADC_PDEN, PORT_PIN(pin))) 263e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin *config = LTQ_PINCONF_PACK(param, 1); 264e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin else if (pad_getbit(mem, LTQ_PADC_PUEN, PORT_PIN(pin))) 265e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin *config = LTQ_PINCONF_PACK(param, 2); 266e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin else 267e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin *config = LTQ_PINCONF_PACK(param, 0); 268e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 269e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin break; 270e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 271e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin default: 272e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return -ENOTSUPP; 273e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin } 274e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 275e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return 0; 276e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 277e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 278e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic int falcon_pinconf_set(struct pinctrl_dev *pctrldev, 279e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin unsigned pin, unsigned long config) 280e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 281e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin enum ltq_pinconf_param param = LTQ_PINCONF_UNPACK_PARAM(config); 282e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int arg = LTQ_PINCONF_UNPACK_ARG(config); 283e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); 284e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin void __iomem *mem = info->membase[PORT(pin)]; 285e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin u32 reg; 286e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 287e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin switch (param) { 288e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin case LTQ_PINCONF_PARAM_DRIVE_CURRENT: 289e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin reg = LTQ_PADC_DCC; 290e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin break; 291e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 292e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin case LTQ_PINCONF_PARAM_SLEW_RATE: 293e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin reg = LTQ_PADC_SRC; 294e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin break; 295e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 296e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin case LTQ_PINCONF_PARAM_PULL: 297e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (arg == 1) 298e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin reg = LTQ_PADC_PDEN; 299e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin else 300e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin reg = LTQ_PADC_PUEN; 301e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin break; 302e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 303e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin default: 304e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pr_err("%s: Invalid config param %04x\n", 305e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pinctrl_dev_get_name(pctrldev), param); 306e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return -ENOTSUPP; 307e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin } 308e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 309e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pad_w32(mem, BIT(PORT_PIN(pin)), reg); 310e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (!(pad_r32(mem, reg) & BIT(PORT_PIN(pin)))) 311e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return -ENOTSUPP; 312e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return 0; 313e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 314e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 315e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic void falcon_pinconf_dbg_show(struct pinctrl_dev *pctrldev, 316e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct seq_file *s, unsigned offset) 317e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 318e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 319e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 320e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic void falcon_pinconf_group_dbg_show(struct pinctrl_dev *pctrldev, 321e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct seq_file *s, unsigned selector) 322e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 323e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 324e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 3256bb0700bfe124f3ee245da24b5bb35152d2e6bfcAxel Linstatic struct pinconf_ops falcon_pinconf_ops = { 326e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pin_config_get = falcon_pinconf_get, 327e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pin_config_set = falcon_pinconf_set, 328e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pin_config_group_get = falcon_pinconf_group_get, 329e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pin_config_group_set = falcon_pinconf_group_set, 330e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pin_config_dbg_show = falcon_pinconf_dbg_show, 331e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pin_config_group_dbg_show = falcon_pinconf_group_dbg_show, 332e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 333e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 334e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct pinctrl_desc falcon_pctrl_desc = { 335e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .owner = THIS_MODULE, 336e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .pins = falcon_pads, 337e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .confops = &falcon_pinconf_ops, 338e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 339e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 340e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic inline int falcon_mux_apply(struct pinctrl_dev *pctrldev, 341e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int mfp, int mux) 342e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 343e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev); 344e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int port = PORT(info->mfp[mfp].pin); 345e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 346e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if ((port >= PORTS) || (!info->membase[port])) 347e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return -ENODEV; 348e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 349e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pad_w32(info->membase[port], mux, 350e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin LTQ_PADC_MUX(PORT_PIN(info->mfp[mfp].pin))); 351e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return 0; 352e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 353e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 354e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const struct ltq_cfg_param falcon_cfg_params[] = { 355e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"lantiq,pull", LTQ_PINCONF_PARAM_PULL}, 356e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"lantiq,drive-current", LTQ_PINCONF_PARAM_DRIVE_CURRENT}, 357e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {"lantiq,slew-rate", LTQ_PINCONF_PARAM_SLEW_RATE}, 358e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 359e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 360e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct ltq_pinmux_info falcon_info = { 361e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .desc = &falcon_pctrl_desc, 362e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .apply_mux = falcon_mux_apply, 363e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 364e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 365e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 366e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 367e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 368e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin/* --------- register the pinctrl layer --------- */ 369e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 370e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinint pinctrl_falcon_get_range_size(int id) 371e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 372e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin u32 avail; 373e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 374e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if ((id >= PORTS) || (!falcon_info.membase[id])) 375e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return -EINVAL; 376e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 377e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin avail = pad_r32(falcon_info.membase[id], LTQ_PADC_AVAIL); 378e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 379e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return fls(avail); 380e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 381e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 382e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinvoid pinctrl_falcon_add_gpio_range(struct pinctrl_gpio_range *range) 383e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 384e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pinctrl_add_gpio_range(falcon_info.pctrl, range); 385e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 386e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 387e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic int pinctrl_falcon_probe(struct platform_device *pdev) 388e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 389e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct device_node *np; 390e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int pad_count = 0; 391e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int ret = 0; 392e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 393e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin /* load and remap the pad resources of the different banks */ 394e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin for_each_compatible_node(np, NULL, "lantiq,pad-falcon") { 395e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct platform_device *ppdev = of_find_device_by_node(np); 396e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin const __be32 *bank = of_get_property(np, "lantiq,bank", NULL); 397e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin struct resource res; 398e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin u32 avail; 399e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin int pins; 400e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 401a8ae367f40867fde80c90484c90b96c3968c224bJohn Crispin if (!of_device_is_available(np)) 402a8ae367f40867fde80c90484c90b96c3968c224bJohn Crispin continue; 403a8ae367f40867fde80c90484c90b96c3968c224bJohn Crispin 404e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (!ppdev) { 405e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin dev_err(&pdev->dev, "failed to find pad pdev\n"); 406e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin continue; 407e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin } 408e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (!bank || *bank >= PORTS) 409e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin continue; 410e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (of_address_to_resource(np, 0, &res)) 411e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin continue; 412e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.clk[*bank] = clk_get(&ppdev->dev, NULL); 413e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (IS_ERR(falcon_info.clk[*bank])) { 414e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin dev_err(&ppdev->dev, "failed to get clock\n"); 415e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return PTR_ERR(falcon_info.clk[*bank]); 416e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin } 417e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.membase[*bank] = 418e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin devm_request_and_ioremap(&pdev->dev, &res); 419e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (!falcon_info.membase[*bank]) { 420e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin dev_err(&pdev->dev, 421e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin "Failed to remap memory for bank %d\n", 422e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin *bank); 423e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return -ENOMEM; 424e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin } 425e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin avail = pad_r32(falcon_info.membase[*bank], 426e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin LTQ_PADC_AVAIL); 427e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pins = fls(avail); 428e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin lantiq_load_pin_desc(&falcon_pads[pad_count], *bank, pins); 429e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin pad_count += pins; 430e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin clk_enable(falcon_info.clk[*bank]); 431e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin dev_dbg(&pdev->dev, "found %s with %d pads\n", 432e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin res.name, pins); 433e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin } 434e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin dev_dbg(&pdev->dev, "found a total of %d pads\n", pad_count); 435e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_pctrl_desc.name = dev_name(&pdev->dev); 436e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_pctrl_desc.npins = pad_count; 437e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 438e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.mfp = falcon_mfp; 439e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.num_mfp = ARRAY_SIZE(falcon_mfp); 440e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.grps = falcon_grps; 441e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.num_grps = ARRAY_SIZE(falcon_grps); 442e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.funcs = falcon_funcs; 443e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin falcon_info.num_funcs = ARRAY_SIZE(falcon_funcs); 444e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 445e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin ret = ltq_pinctrl_register(pdev, &falcon_info); 446e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin if (!ret) 447e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin dev_info(&pdev->dev, "Init done\n"); 448e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return ret; 449e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 450e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 451e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic const struct of_device_id falcon_match[] = { 452e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin { .compatible = "lantiq,pinctrl-falcon" }, 453e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin {}, 454e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 455e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John CrispinMODULE_DEVICE_TABLE(of, falcon_match); 456e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 457e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinstatic struct platform_driver pinctrl_falcon_driver = { 458e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .probe = pinctrl_falcon_probe, 459e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .driver = { 460e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .name = "pinctrl-falcon", 461e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .owner = THIS_MODULE, 462e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin .of_match_table = falcon_match, 463e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin }, 464e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin}; 465e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 466e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispinint __init pinctrl_falcon_init(void) 467e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin{ 468e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin return platform_driver_register(&pinctrl_falcon_driver); 469e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin} 470e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispin 471e316cb2b16bbfbe48387b56e7e6b5d32ec686f82John Crispincore_initcall_sync(pinctrl_falcon_init); 472