Srinath | 1cb125c | 2010-11-16 14:26:58 -0800 | [diff] [blame] | 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> |
Srinath | 840b929 | 2010-12-23 12:17:48 -0800 | [diff] [blame] | 22 | #include <linux/gpio.h> |
Srinath | 1cb125c | 2010-11-16 14:26:58 -0800 | [diff] [blame] | 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> |
Srinath | 840b929 | 2010-12-23 12:17:48 -0800 | [diff] [blame] | 31 | #include <plat/usb.h> |
Srinath | 1cb125c | 2010-11-16 14:26:58 -0800 | [diff] [blame] | 32 | |
| 33 | #include "mux.h" |
Srinath | 840b929 | 2010-12-23 12:17:48 -0800 | [diff] [blame] | 34 | #include "control.h" |
| 35 | |
| 36 | #define GPIO_USB_POWER 35 |
| 37 | #define GPIO_USB_NRESET 38 |
| 38 | |
Srinath | 1cb125c | 2010-11-16 14:26:58 -0800 | [diff] [blame] | 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 | |
Russell King - ARM Linux | 3dc3bad | 2011-02-14 15:40:20 -0800 | [diff] [blame] | 52 | static void __init am3517_crane_init_early(void) |
Srinath | 1cb125c | 2010-11-16 14:26:58 -0800 | [diff] [blame] | 53 | { |
| 54 | omap_board_config = am3517_crane_config; |
| 55 | omap_board_config_size = ARRAY_SIZE(am3517_crane_config); |
| 56 | |
Paul Walmsley | 4805734 | 2010-12-21 15:25:10 -0700 | [diff] [blame] | 57 | omap2_init_common_infrastructure(); |
| 58 | omap2_init_common_devices(NULL, NULL); |
Srinath | 1cb125c | 2010-11-16 14:26:58 -0800 | [diff] [blame] | 59 | } |
| 60 | |
Srinath | 840b929 | 2010-12-23 12:17:48 -0800 | [diff] [blame] | 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 | |
Srinath | 1cb125c | 2010-11-16 14:26:58 -0800 | [diff] [blame] | 72 | static void __init am3517_crane_init(void) |
| 73 | { |
Srinath | 840b929 | 2010-12-23 12:17:48 -0800 | [diff] [blame] | 74 | int ret; |
| 75 | |
Srinath | 1cb125c | 2010-11-16 14:26:58 -0800 | [diff] [blame] | 76 | omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); |
| 77 | omap_serial_init(); |
Srinath | 840b929 | 2010-12-23 12:17:48 -0800 | [diff] [blame] | 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); |
Srinath | 1cb125c | 2010-11-16 14:26:58 -0800 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | MACHINE_START(CRANEBOARD, "AM3517/05 CRANEBOARD") |
| 109 | .boot_params = 0x80000100, |
Srinath | 1cb125c | 2010-11-16 14:26:58 -0800 | [diff] [blame] | 110 | .reserve = omap_reserve, |
Russell King - ARM Linux | 3dc3bad | 2011-02-14 15:40:20 -0800 | [diff] [blame] | 111 | .map_io = omap3_map_io, |
| 112 | .init_early = am3517_crane_init_early, |
| 113 | .init_irq = omap_init_irq, |
Srinath | 1cb125c | 2010-11-16 14:26:58 -0800 | [diff] [blame] | 114 | .init_machine = am3517_crane_init, |
| 115 | .timer = &omap_timer, |
| 116 | MACHINE_END |