Commit | Line | Data |
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18cb7aca FB |
1 | /* |
2 | * linux/arch/arm/mach-omap2/usb-musb.c | |
3 | * | |
4 | * This file will contain the board specific details for the | |
5 | * MENTOR USB OTG controller on OMAP3430 | |
6 | * | |
7 | * Copyright (C) 2007-2008 Texas Instruments | |
8 | * Copyright (C) 2008 Nokia Corporation | |
9 | * Author: Vikram Pandita | |
10 | * | |
11 | * Generalization by: | |
12 | * Felipe Balbi <felipe.balbi@nokia.com> | |
13 | * | |
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. | |
17 | */ | |
18 | ||
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> | |
25 | #include <linux/io.h> | |
18cb7aca FB |
26 | #include <linux/usb/musb.h> |
27 | ||
ce491cf8 | 28 | #include <plat/usb.h> |
25c7d49e | 29 | #include "omap_device.h" |
dbc04161 | 30 | |
e4c060db | 31 | #include "soc.h" |
2aae4221 | 32 | #include "mux.h" |
18cb7aca | 33 | |
18cb7aca FB |
34 | static struct musb_hdrc_config musb_config = { |
35 | .multipoint = 1, | |
36 | .dyn_fifo = 1, | |
18cb7aca | 37 | .num_eps = 16, |
18cb7aca | 38 | .ram_bits = 12, |
18cb7aca FB |
39 | }; |
40 | ||
41 | static struct musb_hdrc_platform_data musb_plat = { | |
310018d5 | 42 | #ifdef CONFIG_USB_GADGET_MUSB_HDRC |
18cb7aca | 43 | .mode = MUSB_OTG, |
310018d5 | 44 | #else |
18cb7aca | 45 | .mode = MUSB_HOST, |
18cb7aca FB |
46 | #endif |
47 | /* .clock is set dynamically */ | |
18cb7aca FB |
48 | .config = &musb_config, |
49 | ||
50 | /* REVISIT charge pump on TWL4030 can supply up to | |
51 | * 100 mA ... but this value is board-specific, like | |
52 | * "mode", and should be passed to usb_musb_init(). | |
53 | */ | |
54 | .power = 50, /* up to 100 mA */ | |
55 | }; | |
56 | ||
e930438c | 57 | static u64 musb_dmamask = DMA_BIT_MASK(32); |
18cb7aca | 58 | |
9e18630b MR |
59 | static struct omap_musb_board_data musb_default_board_data = { |
60 | .interface_type = MUSB_INTERFACE_ULPI, | |
61 | .mode = MUSB_OTG, | |
62 | .power = 100, | |
63 | }; | |
64 | ||
65 | void __init usb_musb_init(struct omap_musb_board_data *musb_board_data) | |
18cb7aca | 66 | { |
18a26892 | 67 | struct omap_hwmod *oh; |
18a26892 HH |
68 | struct platform_device *pdev; |
69 | struct device *dev; | |
70 | int bus_id = -1; | |
71 | const char *oh_name, *name; | |
9e18630b MR |
72 | struct omap_musb_board_data *board_data; |
73 | ||
74 | if (musb_board_data) | |
75 | board_data = musb_board_data; | |
76 | else | |
77 | board_data = &musb_default_board_data; | |
2aae4221 | 78 | |
18cb7aca FB |
79 | /* |
80 | * REVISIT: This line can be removed once all the platforms using | |
81 | * musb_core.c have been converted to use use clkdev. | |
82 | */ | |
83 | musb_plat.clock = "ick"; | |
884b8369 MM |
84 | musb_plat.board_data = board_data; |
85 | musb_plat.power = board_data->power >> 1; | |
86 | musb_plat.mode = board_data->mode; | |
58815fa3 | 87 | musb_plat.extvbus = board_data->extvbus; |
18cb7aca | 88 | |
68a88b98 | 89 | if (soc_is_am35xx()) { |
18a26892 HH |
90 | oh_name = "am35x_otg_hs"; |
91 | name = "musb-am35x"; | |
cada691f RB |
92 | } else if (cpu_is_ti81xx()) { |
93 | oh_name = "usb_otg_hs"; | |
94 | name = "musb-ti81xx"; | |
18a26892 HH |
95 | } else { |
96 | oh_name = "usb_otg_hs"; | |
97 | name = "musb-omap2430"; | |
98 | } | |
99 | ||
c541c15f TL |
100 | oh = omap_hwmod_lookup(oh_name); |
101 | if (WARN(!oh, "%s: could not find omap_hwmod for %s\n", | |
102 | __func__, oh_name)) | |
103 | return; | |
18a26892 | 104 | |
c541c15f | 105 | pdev = omap_device_build(name, bus_id, oh, &musb_plat, |
f718e2c0 | 106 | sizeof(musb_plat), NULL, 0, false); |
c541c15f | 107 | if (IS_ERR(pdev)) { |
18a26892 HH |
108 | pr_err("Could not build omap_device for %s %s\n", |
109 | name, oh_name); | |
110 | return; | |
111 | } | |
112 | ||
18a26892 HH |
113 | dev = &pdev->dev; |
114 | get_device(dev); | |
115 | dev->dma_mask = &musb_dmamask; | |
116 | dev->coherent_dma_mask = musb_dmamask; | |
117 | put_device(dev); | |
94a3ef6f | 118 | } |