2 * linux/arch/arm/mach-omap2/gpmc-smsc911x.c
4 * Copyright (C) 2009 Li-Pro.Net
5 * Stephan Linz <linz@li-pro.net>
7 * Modified from linux/arch/arm/mach-omap2/gpmc-smc91x.c
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
13 #define pr_fmt(fmt) "%s: " fmt, __func__
15 #include <linux/kernel.h>
16 #include <linux/platform_device.h>
17 #include <linux/gpio.h>
18 #include <linux/delay.h>
19 #include <linux/interrupt.h>
21 #include <linux/smsc911x.h>
22 #include <linux/regulator/fixed.h>
23 #include <linux/regulator/machine.h>
25 #include <plat/board.h>
26 #include <plat/gpmc.h>
27 #include <plat/gpmc-smsc911x.h>
29 static struct omap_smsc911x_platform_data *gpmc_cfg;
31 static struct resource gpmc_smsc911x_resources[] = {
33 .flags = IORESOURCE_MEM,
36 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
40 static struct smsc911x_platform_config gpmc_smsc911x_config = {
41 .phy_interface = PHY_INTERFACE_MODE_MII,
42 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
43 .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
44 .flags = SMSC911X_USE_16BIT,
47 static struct regulator_consumer_supply gpmc_smsc911x_supply[] = {
48 REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
49 REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
52 /* Generic regulator definition to satisfy smsc911x */
53 static struct regulator_init_data gpmc_smsc911x_reg_init_data = {
57 .valid_modes_mask = REGULATOR_MODE_NORMAL
58 | REGULATOR_MODE_STANDBY,
59 .valid_ops_mask = REGULATOR_CHANGE_MODE
60 | REGULATOR_CHANGE_STATUS,
62 .num_consumer_supplies = ARRAY_SIZE(gpmc_smsc911x_supply),
63 .consumer_supplies = gpmc_smsc911x_supply,
66 static struct fixed_voltage_config gpmc_smsc911x_fixed_reg_data = {
67 .supply_name = "gpmc_smsc911x",
68 .microvolts = 3300000,
73 .init_data = &gpmc_smsc911x_reg_init_data,
77 * Platform device id of 42 is a temporary fix to avoid conflicts
78 * with other reg-fixed-voltage devices. The real fix should
79 * involve the driver core providing a way of dynamically
80 * assigning a unique id on registration for platform devices
81 * in the same name space.
83 static struct platform_device gpmc_smsc911x_regulator = {
84 .name = "reg-fixed-voltage",
87 .platform_data = &gpmc_smsc911x_fixed_reg_data,
92 * Initialize smsc911x device connected to the GPMC. Note that we
93 * assume that pin multiplexing is done in the board-*.c file,
94 * or in the bootloader.
96 void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *board_data)
98 struct platform_device *pdev;
99 unsigned long cs_mem_base;
102 gpmc_cfg = board_data;
105 ret = platform_device_register(&gpmc_smsc911x_regulator);
107 pr_err("Unable to register smsc911x regulators: %d\n",
113 if (gpmc_cs_request(gpmc_cfg->cs, SZ_16M, &cs_mem_base) < 0) {
114 pr_err("Failed to request GPMC mem region\n");
118 gpmc_smsc911x_resources[0].start = cs_mem_base + 0x0;
119 gpmc_smsc911x_resources[0].end = cs_mem_base + 0xff;
121 if (gpio_request_one(gpmc_cfg->gpio_irq, GPIOF_IN, "smsc911x irq")) {
122 pr_err("Failed to request IRQ GPIO%d\n", gpmc_cfg->gpio_irq);
126 gpmc_smsc911x_resources[1].start = gpio_to_irq(gpmc_cfg->gpio_irq);
128 if (gpio_is_valid(gpmc_cfg->gpio_reset)) {
129 ret = gpio_request_one(gpmc_cfg->gpio_reset,
130 GPIOF_OUT_INIT_HIGH, "smsc911x reset");
132 pr_err("Failed to request reset GPIO%d\n",
133 gpmc_cfg->gpio_reset);
137 gpio_set_value(gpmc_cfg->gpio_reset, 0);
139 gpio_set_value(gpmc_cfg->gpio_reset, 1);
143 gpmc_smsc911x_config.flags = gpmc_cfg->flags;
145 pdev = platform_device_register_resndata(NULL, "smsc911x", gpmc_cfg->id,
146 gpmc_smsc911x_resources, ARRAY_SIZE(gpmc_smsc911x_resources),
147 &gpmc_smsc911x_config, sizeof(gpmc_smsc911x_config));
149 pr_err("Unable to register platform device\n");
150 gpio_free(gpmc_cfg->gpio_reset);
157 gpio_free(gpmc_cfg->gpio_irq);
159 gpmc_cs_free(gpmc_cfg->cs);
161 pr_err("Could not initialize smsc911x device\n");