projects / deliverable / linux.git / blame
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|---|---|---|
| 1bc34f79 DM |
1 | /* |
| 2 | * LILLY-1131 development board support | |
| 3 | * | |
| 4 | * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de> | |
| 5 | * | |
| 6 | * based on code for other MX31 boards, | |
| 7 | * | |
| 8 | * Copyright 2005-2007 Freescale Semiconductor | |
| 9 | * Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com> | |
| 10 | * Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group | |
| 11 | * | |
| 12 | * This program is free software; you can redistribute it and/or modify | |
| 13 | * it under the terms of the GNU General Public License as published by | |
| 14 | * the Free Software Foundation; either version 2 of the License, or | |
| 15 | * (at your option) any later version. | |
| 16 | * | |
| 17 | * This program is distributed in the hope that it will be useful, | |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 20 | * GNU General Public License for more details. | |
| 21 | * | |
| 22 | * You should have received a copy of the GNU General Public License | |
| 23 | * along with this program; if not, write to the Free Software | |
| 24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 25 | */ | |
| 26 | ||
| 27 | #include <linux/kernel.h> | |
| 28 | #include <linux/types.h> | |
| 29 | #include <linux/init.h> | |
| d0b1eabc | 30 | #include <linux/gpio.h> |
| 1bc34f79 DM |
31 | |
| 32 | #include <asm/mach-types.h> | |
| 33 | #include <asm/mach/arch.h> | |
| 34 | #include <asm/mach/map.h> | |
| 35 | ||
| 36 | #include <mach/hardware.h> | |
| 37 | #include <mach/common.h> | |
| 38 | #include <mach/imx-uart.h> | |
| 39 | #include <mach/iomux-mx3.h> | |
| 40 | #include <mach/board-mx31lilly.h> | |
| d0b1eabc | 41 | #include <mach/mmc.h> |
| 1bc34f79 DM |
42 | |
| 43 | #include "devices.h" | |
| 44 | ||
| 45 | /* | |
| 46 | * This file contains board-specific initialization routines for the | |
| 47 | * LILLY-1131 development board. If you design an own baseboard for the | |
| 48 | * module, use this file as base for support code. | |
| 49 | */ | |
| 50 | ||
| 51 | static unsigned int lilly_db_board_pins[] __initdata = { | |
| 52 | MX31_PIN_CTS1__CTS1, | |
| 53 | MX31_PIN_RTS1__RTS1, | |
| 54 | MX31_PIN_TXD1__TXD1, | |
| 55 | MX31_PIN_RXD1__RXD1, | |
| d0b1eabc DM |
56 | MX31_PIN_SD1_DATA3__SD1_DATA3, |
| 57 | MX31_PIN_SD1_DATA2__SD1_DATA2, | |
| 58 | MX31_PIN_SD1_DATA1__SD1_DATA1, | |
| 59 | MX31_PIN_SD1_DATA0__SD1_DATA0, | |
| 60 | MX31_PIN_SD1_CLK__SD1_CLK, | |
| 61 | MX31_PIN_SD1_CMD__SD1_CMD, | |
| 1bc34f79 DM |
62 | }; |
| 63 | ||
| 64 | /* UART */ | |
| 65 | static struct imxuart_platform_data uart_pdata __initdata = { | |
| 66 | .flags = IMXUART_HAVE_RTSCTS, | |
| 67 | }; | |
| 68 | ||
| d0b1eabc DM |
69 | /* MMC support */ |
| 70 | ||
| 71 | static int mxc_mmc1_get_ro(struct device *dev) | |
| 72 | { | |
| 73 | return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_LCS0)); | |
| 74 | } | |
| 75 | ||
| 76 | static int gpio_det, gpio_wp; | |
| 77 | ||
| 78 | static int mxc_mmc1_init(struct device *dev, | |
| 79 | irq_handler_t detect_irq, void *data) | |
| 80 | { | |
| 81 | int ret; | |
| 82 | ||
| 83 | gpio_det = IOMUX_TO_GPIO(MX31_PIN_GPIO1_1); | |
| 84 | gpio_wp = IOMUX_TO_GPIO(MX31_PIN_LCS0); | |
| 85 | ||
| 86 | ret = gpio_request(gpio_det, "MMC detect"); | |
| 87 | if (ret) | |
| 88 | return ret; | |
| 89 | ||
| 90 | ret = gpio_request(gpio_wp, "MMC w/p"); | |
| 91 | if (ret) | |
| 92 | goto exit_free_det; | |
| 93 | ||
| 94 | gpio_direction_input(gpio_det); | |
| 95 | gpio_direction_input(gpio_wp); | |
| 96 | ||
| 97 | ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), detect_irq, | |
| 98 | IRQF_DISABLED | IRQF_TRIGGER_FALLING, | |
| 99 | "MMC detect", data); | |
| 100 | if (ret) | |
| 101 | goto exit_free_wp; | |
| 102 | ||
| 103 | return 0; | |
| 104 | ||
| 105 | exit_free_wp: | |
| 106 | gpio_free(gpio_wp); | |
| 107 | ||
| 108 | exit_free_det: | |
| 109 | gpio_free(gpio_det); | |
| 110 | ||
| 111 | return ret; | |
| 112 | } | |
| 113 | ||
| 114 | static void mxc_mmc1_exit(struct device *dev, void *data) | |
| 115 | { | |
| 116 | gpio_free(gpio_det); | |
| 117 | gpio_free(gpio_wp); | |
| 118 | free_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), data); | |
| 119 | } | |
| 120 | ||
| 121 | static struct imxmmc_platform_data mmc_pdata = { | |
| 122 | .get_ro = mxc_mmc1_get_ro, | |
| 123 | .init = mxc_mmc1_init, | |
| 124 | .exit = mxc_mmc1_exit, | |
| 125 | }; | |
| 126 | ||
| 1bc34f79 DM |
127 | void __init mx31lilly_db_init(void) |
| 128 | { | |
| 129 | mxc_iomux_setup_multiple_pins(lilly_db_board_pins, | |
| 130 | ARRAY_SIZE(lilly_db_board_pins), | |
| 131 | "development board pins"); | |
| 132 | mxc_register_device(&mxc_uart_device0, &uart_pdata); | |
| d0b1eabc | 133 | mxc_register_device(&mxcsdhc_device0, &mmc_pdata); |
| 1bc34f79 DM |
134 | } |
| 135 |