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1cb125ca S |
1 | /* |
2 | * Support for AM3517/05 Craneboard | |
3 | * http://www.mistralsolutions.com/products/craneboard.php | |
4 | * | |
5 | * Copyright (C) 2010 Mistral Solutions Pvt Ltd. <www.mistralsolutions.com> | |
6 | * Author: R.Srinath <srinath@mistralsolutions.com> | |
7 | * | |
8 | * Based on mach-omap2/board-am3517evm.c | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation version 2. | |
13 | * | |
14 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind, | |
15 | * whether express or implied; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * General Public License for more details. | |
18 | */ | |
19 | ||
20 | #include <linux/kernel.h> | |
21 | #include <linux/init.h> | |
840b9296 | 22 | #include <linux/gpio.h> |
1cb125ca S |
23 | |
24 | #include <mach/hardware.h> | |
25 | #include <asm/mach-types.h> | |
26 | #include <asm/mach/arch.h> | |
27 | #include <asm/mach/map.h> | |
28 | ||
29 | #include <plat/board.h> | |
30 | #include <plat/common.h> | |
840b9296 | 31 | #include <plat/usb.h> |
1cb125ca S |
32 | |
33 | #include "mux.h" | |
840b9296 S |
34 | #include "control.h" |
35 | ||
36 | #define GPIO_USB_POWER 35 | |
37 | #define GPIO_USB_NRESET 38 | |
38 | ||
1cb125ca S |
39 | |
40 | /* Board initialization */ | |
41 | static struct omap_board_config_kernel am3517_crane_config[] __initdata = { | |
42 | }; | |
43 | ||
44 | #ifdef CONFIG_OMAP_MUX | |
45 | static struct omap_board_mux board_mux[] __initdata = { | |
46 | { .reg_offset = OMAP_MUX_TERMINATOR }, | |
47 | }; | |
48 | #else | |
49 | #define board_mux NULL | |
50 | #endif | |
51 | ||
3dc3bad6 | 52 | static void __init am3517_crane_init_early(void) |
1cb125ca S |
53 | { |
54 | omap_board_config = am3517_crane_config; | |
55 | omap_board_config_size = ARRAY_SIZE(am3517_crane_config); | |
56 | ||
4805734b PW |
57 | omap2_init_common_infrastructure(); |
58 | omap2_init_common_devices(NULL, NULL); | |
1cb125ca S |
59 | } |
60 | ||
840b9296 S |
61 | static struct ehci_hcd_omap_platform_data ehci_pdata __initdata = { |
62 | .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY, | |
63 | .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN, | |
64 | .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN, | |
65 | ||
66 | .phy_reset = true, | |
67 | .reset_gpio_port[0] = GPIO_USB_NRESET, | |
68 | .reset_gpio_port[1] = -EINVAL, | |
69 | .reset_gpio_port[2] = -EINVAL | |
70 | }; | |
71 | ||
1cb125ca S |
72 | static void __init am3517_crane_init(void) |
73 | { | |
840b9296 S |
74 | int ret; |
75 | ||
1cb125ca S |
76 | omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); |
77 | omap_serial_init(); | |
840b9296 S |
78 | |
79 | /* Configure GPIO for EHCI port */ | |
80 | if (omap_mux_init_gpio(GPIO_USB_NRESET, OMAP_PIN_OUTPUT)) { | |
81 | pr_err("Can not configure mux for GPIO_USB_NRESET %d\n", | |
82 | GPIO_USB_NRESET); | |
83 | return; | |
84 | } | |
85 | ||
86 | if (omap_mux_init_gpio(GPIO_USB_POWER, OMAP_PIN_OUTPUT)) { | |
87 | pr_err("Can not configure mux for GPIO_USB_POWER %d\n", | |
88 | GPIO_USB_POWER); | |
89 | return; | |
90 | } | |
91 | ||
92 | ret = gpio_request(GPIO_USB_POWER, "usb_ehci_enable"); | |
93 | if (ret < 0) { | |
94 | pr_err("Can not request GPIO %d\n", GPIO_USB_POWER); | |
95 | return; | |
96 | } | |
97 | ||
98 | ret = gpio_direction_output(GPIO_USB_POWER, 1); | |
99 | if (ret < 0) { | |
100 | gpio_free(GPIO_USB_POWER); | |
101 | pr_err("Unable to initialize EHCI power\n"); | |
102 | return; | |
103 | } | |
104 | ||
105 | usb_ehci_init(&ehci_pdata); | |
1cb125ca S |
106 | } |
107 | ||
108 | MACHINE_START(CRANEBOARD, "AM3517/05 CRANEBOARD") | |
109 | .boot_params = 0x80000100, | |
1cb125ca | 110 | .reserve = omap_reserve, |
3dc3bad6 RKAL |
111 | .map_io = omap3_map_io, |
112 | .init_early = am3517_crane_init_early, | |
113 | .init_irq = omap_init_irq, | |
1cb125ca S |
114 | .init_machine = am3517_crane_init, |
115 | .timer = &omap_timer, | |
116 | MACHINE_END |