2 * linux/arch/arm/mach-omap2/usb-musb.c
4 * This file will contain the board specific details for the
5 * MENTOR USB OTG controller on OMAP3430
7 * Copyright (C) 2007-2008 Texas Instruments
8 * Copyright (C) 2008 Nokia Corporation
9 * Author: Vikram Pandita
12 * Felipe Balbi <felipe.balbi@nokia.com>
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation.
19 #include <linux/types.h>
20 #include <linux/errno.h>
21 #include <linux/delay.h>
22 #include <linux/platform_device.h>
23 #include <linux/clk.h>
24 #include <linux/dma-mapping.h>
27 #include <linux/usb/musb.h>
29 #include <mach/hardware.h>
30 #include <mach/irqs.h>
31 #include <mach/am35xx.h>
33 #include <plat/omap_device.h>
36 #if defined(CONFIG_USB_MUSB_OMAP2PLUS) || defined (CONFIG_USB_MUSB_AM35X)
38 static struct musb_hdrc_config musb_config = {
45 static struct musb_hdrc_platform_data musb_plat = {
46 #ifdef CONFIG_USB_MUSB_OTG
48 #elif defined(CONFIG_USB_MUSB_HDRC_HCD)
50 #elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
51 .mode = MUSB_PERIPHERAL,
53 /* .clock is set dynamically */
54 .config = &musb_config,
56 /* REVISIT charge pump on TWL4030 can supply up to
57 * 100 mA ... but this value is board-specific, like
58 * "mode", and should be passed to usb_musb_init().
60 .power = 50, /* up to 100 mA */
63 static u64 musb_dmamask = DMA_BIT_MASK(32);
65 static struct omap_device_pm_latency omap_musb_latency[] = {
67 .deactivate_func = omap_device_idle_hwmods,
68 .activate_func = omap_device_enable_hwmods,
69 .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
73 static void usb_musb_mux_init(struct omap_musb_board_data *board_data)
75 switch (board_data->interface_type) {
76 case MUSB_INTERFACE_UTMI:
77 omap_mux_init_signal("usba0_otg_dp", OMAP_PIN_INPUT);
78 omap_mux_init_signal("usba0_otg_dm", OMAP_PIN_INPUT);
80 case MUSB_INTERFACE_ULPI:
81 omap_mux_init_signal("usba0_ulpiphy_clk",
82 OMAP_PIN_INPUT_PULLDOWN);
83 omap_mux_init_signal("usba0_ulpiphy_stp",
84 OMAP_PIN_INPUT_PULLDOWN);
85 omap_mux_init_signal("usba0_ulpiphy_dir",
86 OMAP_PIN_INPUT_PULLDOWN);
87 omap_mux_init_signal("usba0_ulpiphy_nxt",
88 OMAP_PIN_INPUT_PULLDOWN);
89 omap_mux_init_signal("usba0_ulpiphy_dat0",
90 OMAP_PIN_INPUT_PULLDOWN);
91 omap_mux_init_signal("usba0_ulpiphy_dat1",
92 OMAP_PIN_INPUT_PULLDOWN);
93 omap_mux_init_signal("usba0_ulpiphy_dat2",
94 OMAP_PIN_INPUT_PULLDOWN);
95 omap_mux_init_signal("usba0_ulpiphy_dat3",
96 OMAP_PIN_INPUT_PULLDOWN);
97 omap_mux_init_signal("usba0_ulpiphy_dat4",
98 OMAP_PIN_INPUT_PULLDOWN);
99 omap_mux_init_signal("usba0_ulpiphy_dat5",
100 OMAP_PIN_INPUT_PULLDOWN);
101 omap_mux_init_signal("usba0_ulpiphy_dat6",
102 OMAP_PIN_INPUT_PULLDOWN);
103 omap_mux_init_signal("usba0_ulpiphy_dat7",
104 OMAP_PIN_INPUT_PULLDOWN);
111 void __init usb_musb_init(struct omap_musb_board_data *board_data)
113 struct omap_hwmod *oh;
114 struct omap_device *od;
115 struct platform_device *pdev;
118 const char *oh_name, *name;
120 if (cpu_is_omap3517() || cpu_is_omap3505()) {
121 } else if (cpu_is_omap44xx()) {
122 usb_musb_mux_init(board_data);
126 * REVISIT: This line can be removed once all the platforms using
127 * musb_core.c have been converted to use use clkdev.
129 musb_plat.clock = "ick";
130 musb_plat.board_data = board_data;
131 musb_plat.power = board_data->power >> 1;
132 musb_plat.mode = board_data->mode;
133 musb_plat.extvbus = board_data->extvbus;
135 if (cpu_is_omap44xx())
136 omap4430_phy_init(dev);
138 if (cpu_is_omap3517() || cpu_is_omap3505()) {
139 oh_name = "am35x_otg_hs";
142 oh_name = "usb_otg_hs";
143 name = "musb-omap2430";
146 oh = omap_hwmod_lookup(oh_name);
148 pr_err("Could not look up %s\n", oh_name);
152 od = omap_device_build(name, bus_id, oh, &musb_plat,
153 sizeof(musb_plat), omap_musb_latency,
154 ARRAY_SIZE(omap_musb_latency), false);
156 pr_err("Could not build omap_device for %s %s\n",
164 dev->dma_mask = &musb_dmamask;
165 dev->coherent_dma_mask = musb_dmamask;
170 void __init usb_musb_init(struct omap_musb_board_data *board_data)
173 #endif /* CONFIG_USB_MUSB_SOC */