diff options
Diffstat (limited to 'arch/arm/mach-omap2/usb-host.c')
| -rw-r--r-- | arch/arm/mach-omap2/usb-host.c | 496 |
1 files changed, 0 insertions, 496 deletions
diff --git a/arch/arm/mach-omap2/usb-host.c b/arch/arm/mach-omap2/usb-host.c deleted file mode 100644 index 745367c0c2bb..000000000000 --- a/arch/arm/mach-omap2/usb-host.c +++ /dev/null @@ -1,496 +0,0 @@ -/* - * 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; -} |