+++ /dev/null
-/*
- * usb-host.c - OMAP USB Host
- *
- * This file will contain the board specific details for the
- * Synopsys EHCI/OHCI host controller on OMAP3430 and onwards
- *
- * Copyright (C) 2007-2011 Texas Instruments
- * Author: Vikram Pandita <vikram.pandita@ti.com>
- * Author: Keshava Munegowda <keshava_mgowda@ti.com>
- *
- * Generalization by:
- * Felipe Balbi <balbi@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/dma-mapping.h>
-#include <linux/regulator/machine.h>
-#include <linux/regulator/fixed.h>
-#include <linux/string.h>
-#include <linux/io.h>
-#include <linux/gpio.h>
-#include <linux/usb/phy.h>
-#include <linux/usb/usb_phy_generic.h>
-
-#include "soc.h"
-#include "omap_device.h"
-#include "mux.h"
-#include "usb.h"
-
-#ifdef CONFIG_MFD_OMAP_USB_HOST
-
-#define OMAP_USBHS_DEVICE "usbhs_omap"
-#define OMAP_USBTLL_DEVICE "usbhs_tll"
-#define USBHS_UHH_HWMODNAME "usb_host_hs"
-#define USBHS_TLL_HWMODNAME "usb_tll_hs"
-
-/* MUX settings for EHCI pins */
-/*
- * setup_ehci_io_mux - initialize IO pad mux for USBHOST
- */
-static void __init setup_ehci_io_mux(const enum usbhs_omap_port_mode *port_mode)
-{
- switch (port_mode[0]) {
- case OMAP_EHCI_PORT_MODE_PHY:
- omap_mux_init_signal("hsusb1_stp", OMAP_PIN_OUTPUT);
- omap_mux_init_signal("hsusb1_clk", OMAP_PIN_OUTPUT);
- omap_mux_init_signal("hsusb1_dir", OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_nxt", OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_data0", OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_data1", OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_data2", OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_data3", OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_data4", OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_data5", OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_data6", OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_data7", OMAP_PIN_INPUT_PULLDOWN);
- break;
- case OMAP_EHCI_PORT_MODE_TLL:
- omap_mux_init_signal("hsusb1_tll_stp",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("hsusb1_tll_clk",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_tll_dir",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_tll_nxt",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_tll_data0",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_tll_data1",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_tll_data2",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_tll_data3",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_tll_data4",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_tll_data5",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_tll_data6",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb1_tll_data7",
- OMAP_PIN_INPUT_PULLDOWN);
- break;
- case OMAP_USBHS_PORT_MODE_UNUSED:
- /* FALLTHROUGH */
- default:
- break;
- }
-
- switch (port_mode[1]) {
- case OMAP_EHCI_PORT_MODE_PHY:
- omap_mux_init_signal("hsusb2_stp", OMAP_PIN_OUTPUT);
- omap_mux_init_signal("hsusb2_clk", OMAP_PIN_OUTPUT);
- omap_mux_init_signal("hsusb2_dir", OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_nxt", OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_data0",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_data1",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_data2",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_data3",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_data4",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_data5",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_data6",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_data7",
- OMAP_PIN_INPUT_PULLDOWN);
- break;
- case OMAP_EHCI_PORT_MODE_TLL:
- omap_mux_init_signal("hsusb2_tll_stp",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("hsusb2_tll_clk",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_tll_dir",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_tll_nxt",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_tll_data0",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_tll_data1",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_tll_data2",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_tll_data3",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_tll_data4",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_tll_data5",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_tll_data6",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb2_tll_data7",
- OMAP_PIN_INPUT_PULLDOWN);
- break;
- case OMAP_USBHS_PORT_MODE_UNUSED:
- /* FALLTHROUGH */
- default:
- break;
- }
-
- switch (port_mode[2]) {
- case OMAP_EHCI_PORT_MODE_PHY:
- printk(KERN_WARNING "Port3 can't be used in PHY mode\n");
- break;
- case OMAP_EHCI_PORT_MODE_TLL:
- omap_mux_init_signal("hsusb3_tll_stp",
- OMAP_PIN_INPUT_PULLUP);
- omap_mux_init_signal("hsusb3_tll_clk",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb3_tll_dir",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb3_tll_nxt",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb3_tll_data0",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb3_tll_data1",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb3_tll_data2",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb3_tll_data3",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb3_tll_data4",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb3_tll_data5",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb3_tll_data6",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("hsusb3_tll_data7",
- OMAP_PIN_INPUT_PULLDOWN);
- break;
- case OMAP_USBHS_PORT_MODE_UNUSED:
- /* FALLTHROUGH */
- default:
- break;
- }
-
- return;
-}
-
-static void __init setup_ohci_io_mux(const enum usbhs_omap_port_mode *port_mode)
-{
- switch (port_mode[0]) {
- case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
- case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
- case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
- case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
- omap_mux_init_signal("mm1_rxdp",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("mm1_rxdm",
- OMAP_PIN_INPUT_PULLDOWN);
- /* FALLTHROUGH */
- case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
- case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
- omap_mux_init_signal("mm1_rxrcv",
- OMAP_PIN_INPUT_PULLDOWN);
- /* FALLTHROUGH */
- case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
- case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
- omap_mux_init_signal("mm1_txen_n", OMAP_PIN_OUTPUT);
- /* FALLTHROUGH */
- case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
- case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
- omap_mux_init_signal("mm1_txse0",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("mm1_txdat",
- OMAP_PIN_INPUT_PULLDOWN);
- break;
- case OMAP_USBHS_PORT_MODE_UNUSED:
- /* FALLTHROUGH */
- default:
- break;
- }
- switch (port_mode[1]) {
- case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
- case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
- case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
- case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
- omap_mux_init_signal("mm2_rxdp",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("mm2_rxdm",
- OMAP_PIN_INPUT_PULLDOWN);
- /* FALLTHROUGH */
- case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
- case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
- omap_mux_init_signal("mm2_rxrcv",
- OMAP_PIN_INPUT_PULLDOWN);
- /* FALLTHROUGH */
- case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
- case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
- omap_mux_init_signal("mm2_txen_n", OMAP_PIN_OUTPUT);
- /* FALLTHROUGH */
- case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
- case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
- omap_mux_init_signal("mm2_txse0",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("mm2_txdat",
- OMAP_PIN_INPUT_PULLDOWN);
- break;
- case OMAP_USBHS_PORT_MODE_UNUSED:
- /* FALLTHROUGH */
- default:
- break;
- }
- switch (port_mode[2]) {
- case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
- case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
- case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
- case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
- omap_mux_init_signal("mm3_rxdp",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("mm3_rxdm",
- OMAP_PIN_INPUT_PULLDOWN);
- /* FALLTHROUGH */
- case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
- case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
- omap_mux_init_signal("mm3_rxrcv",
- OMAP_PIN_INPUT_PULLDOWN);
- /* FALLTHROUGH */
- case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
- case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
- omap_mux_init_signal("mm3_txen_n", OMAP_PIN_OUTPUT);
- /* FALLTHROUGH */
- case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
- case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
- omap_mux_init_signal("mm3_txse0",
- OMAP_PIN_INPUT_PULLDOWN);
- omap_mux_init_signal("mm3_txdat",
- OMAP_PIN_INPUT_PULLDOWN);
- break;
- case OMAP_USBHS_PORT_MODE_UNUSED:
- /* FALLTHROUGH */
- default:
- break;
- }
-}
-
-void __init usbhs_init(struct usbhs_omap_platform_data *pdata)
-{
- struct omap_hwmod *uhh_hwm, *tll_hwm;
- struct platform_device *pdev;
- int bus_id = -1;
-
- if (cpu_is_omap34xx()) {
- setup_ehci_io_mux(pdata->port_mode);
- setup_ohci_io_mux(pdata->port_mode);
-
- if (omap_rev() <= OMAP3430_REV_ES2_1)
- pdata->single_ulpi_bypass = true;
-
- }
-
- uhh_hwm = omap_hwmod_lookup(USBHS_UHH_HWMODNAME);
- if (!uhh_hwm) {
- pr_err("Could not look up %s\n", USBHS_UHH_HWMODNAME);
- return;
- }
-
- tll_hwm = omap_hwmod_lookup(USBHS_TLL_HWMODNAME);
- if (!tll_hwm) {
- pr_err("Could not look up %s\n", USBHS_TLL_HWMODNAME);
- return;
- }
-
- pdev = omap_device_build(OMAP_USBTLL_DEVICE, bus_id, tll_hwm,
- pdata, sizeof(*pdata));
- if (IS_ERR(pdev)) {
- pr_err("Could not build hwmod device %s\n",
- USBHS_TLL_HWMODNAME);
- return;
- }
-
- pdev = omap_device_build(OMAP_USBHS_DEVICE, bus_id, uhh_hwm,
- pdata, sizeof(*pdata));
- if (IS_ERR(pdev)) {
- pr_err("Could not build hwmod devices %s\n",
- USBHS_UHH_HWMODNAME);
- return;
- }
-}
-
-#else
-
-void __init usbhs_init(struct usbhs_omap_platform_data *pdata)
-{
-}
-
-#endif
-
-/* Template for PHY regulators */
-static struct fixed_voltage_config hsusb_reg_config = {
- /* .supply_name filled later */
- .microvolts = 3300000,
- .gpio = -1, /* updated later */
- .startup_delay = 70000, /* 70msec */
- .enable_high = 1, /* updated later */
- .enabled_at_boot = 0, /* keep in RESET */
- /* .init_data filled later */
-};
-
-static const char *nop_name = "usb_phy_generic"; /* NOP PHY driver */
-static const char *reg_name = "reg-fixed-voltage"; /* Regulator driver */
-
-/**
- * usbhs_add_regulator - Add a gpio based fixed voltage regulator device
- * @name: name for the regulator
- * @dev_id: device id of the device this regulator supplies power to
- * @dev_supply: supply name that the device expects
- * @gpio: GPIO number
- * @polarity: 1 - Active high, 0 - Active low
- */
-static int usbhs_add_regulator(char *name, char *dev_id, char *dev_supply,
- int gpio, int polarity)
-{
- struct regulator_consumer_supply *supplies;
- struct regulator_init_data *reg_data;
- struct fixed_voltage_config *config;
- struct platform_device *pdev;
- struct platform_device_info pdevinfo;
- int ret = -ENOMEM;
-
- supplies = kzalloc(sizeof(*supplies), GFP_KERNEL);
- if (!supplies)
- return -ENOMEM;
-
- supplies->supply = dev_supply;
- supplies->dev_name = dev_id;
-
- reg_data = kzalloc(sizeof(*reg_data), GFP_KERNEL);
- if (!reg_data)
- goto err_data;
-
- reg_data->constraints.valid_ops_mask = REGULATOR_CHANGE_STATUS;
- reg_data->consumer_supplies = supplies;
- reg_data->num_consumer_supplies = 1;
-
- config = kmemdup(&hsusb_reg_config, sizeof(hsusb_reg_config),
- GFP_KERNEL);
- if (!config)
- goto err_config;
-
- config->supply_name = kstrdup(name, GFP_KERNEL);
- if (!config->supply_name)
- goto err_supplyname;
-
- config->gpio = gpio;
- config->enable_high = polarity;
- config->init_data = reg_data;
-
- /* create a regulator device */
- memset(&pdevinfo, 0, sizeof(pdevinfo));
- pdevinfo.name = reg_name;
- pdevinfo.id = PLATFORM_DEVID_AUTO;
- pdevinfo.data = config;
- pdevinfo.size_data = sizeof(*config);
-
- pdev = platform_device_register_full(&pdevinfo);
- if (IS_ERR(pdev)) {
- ret = PTR_ERR(pdev);
- pr_err("%s: Failed registering regulator %s for %s : %d\n",
- __func__, name, dev_id, ret);
- goto err_register;
- }
-
- return 0;
-
-err_register:
- kfree(config->supply_name);
-err_supplyname:
- kfree(config);
-err_config:
- kfree(reg_data);
-err_data:
- kfree(supplies);
- return ret;
-}
-
-#define MAX_STR 20
-
-int usbhs_init_phys(struct usbhs_phy_data *phy, int num_phys)
-{
- char rail_name[MAX_STR];
- int i;
- struct platform_device *pdev;
- char *phy_id;
- struct platform_device_info pdevinfo;
- struct usb_phy_generic_platform_data nop_pdata;
-
- for (i = 0; i < num_phys; i++) {
-
- if (!phy->port) {
- pr_err("%s: Invalid port 0. Must start from 1\n",
- __func__);
- continue;
- }
-
- /* do we need a NOP PHY device ? */
- if (!gpio_is_valid(phy->reset_gpio) &&
- !gpio_is_valid(phy->vcc_gpio))
- continue;
-
- phy_id = kmalloc(MAX_STR, GFP_KERNEL);
- if (!phy_id) {
- pr_err("%s: kmalloc() failed\n", __func__);
- return -ENOMEM;
- }
-
- /* set platform data */
- memset(&nop_pdata, 0, sizeof(nop_pdata));
- if (gpio_is_valid(phy->vcc_gpio))
- nop_pdata.needs_vcc = true;
- nop_pdata.gpio_reset = phy->reset_gpio;
- nop_pdata.type = USB_PHY_TYPE_USB2;
-
- /* create a NOP PHY device */
- memset(&pdevinfo, 0, sizeof(pdevinfo));
- pdevinfo.name = nop_name;
- pdevinfo.id = phy->port;
- pdevinfo.data = &nop_pdata;
- pdevinfo.size_data =
- sizeof(struct usb_phy_generic_platform_data);
- scnprintf(phy_id, MAX_STR, "usb_phy_generic.%d",
- phy->port);
- pdev = platform_device_register_full(&pdevinfo);
- if (IS_ERR(pdev)) {
- pr_err("%s: Failed to register device %s : %ld\n",
- __func__, phy_id, PTR_ERR(pdev));
- kfree(phy_id);
- continue;
- }
-
- usb_bind_phy("ehci-omap.0", phy->port - 1, phy_id);
-
- /* Do we need VCC regulator ? */
- if (gpio_is_valid(phy->vcc_gpio)) {
- scnprintf(rail_name, MAX_STR, "hsusb%d_vcc", phy->port);
- usbhs_add_regulator(rail_name, phy_id, "vcc",
- phy->vcc_gpio, phy->vcc_polarity);
- }
-
- phy++;
- }
-
- return 0;
-}
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