Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; either version 2 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 17 | */ |
| 18 | |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame^] | 19 | #include <linux/gpio.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 20 | #include <linux/init.h> |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame^] | 21 | #include <linux/interrupt.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 22 | #include <linux/platform_device.h> |
Valentin Longchamp | 220bbce | 2009-04-17 15:20:25 +0200 | [diff] [blame] | 23 | #include <linux/types.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 24 | |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 25 | #include <mach/common.h> |
Valentin Longchamp | 220bbce | 2009-04-17 15:20:25 +0200 | [diff] [blame] | 26 | #include <mach/hardware.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 27 | #include <mach/imx-uart.h> |
| 28 | #include <mach/iomux-mx3.h> |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame^] | 29 | #include <mach/mmc.h> |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 30 | |
| 31 | #include "devices.h" |
| 32 | |
Valentin Longchamp | 56c7a45 | 2009-04-22 10:55:50 +0200 | [diff] [blame] | 33 | static unsigned int marxbot_pins[] = { |
| 34 | /* SDHC2 */ |
| 35 | MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2, |
| 36 | MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0, |
| 37 | MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD, |
| 38 | MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29, |
| 39 | /* CSI */ |
| 40 | MX31_PIN_CSI_D4__CSI_D4, MX31_PIN_CSI_D5__CSI_D5, |
| 41 | MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7, |
| 42 | MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9, |
| 43 | MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11, |
| 44 | MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13, |
| 45 | MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15, |
| 46 | MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK, |
| 47 | MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC, |
| 48 | MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1, |
| 49 | MX31_PIN_TXD2__GPIO1_28, |
| 50 | }; |
| 51 | |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame^] | 52 | #define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR) |
| 53 | #define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW) |
| 54 | |
| 55 | static int marxbot_sdhc2_get_ro(struct device *dev) |
| 56 | { |
| 57 | return gpio_get_value(SDHC2_WP); |
| 58 | } |
| 59 | |
| 60 | static int marxbot_sdhc2_init(struct device *dev, irq_handler_t detect_irq, |
| 61 | void *data) |
| 62 | { |
| 63 | return request_irq(gpio_to_irq(SDHC2_CD), detect_irq, |
| 64 | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, |
| 65 | "sdhc2-card-detect", data); |
| 66 | } |
| 67 | |
| 68 | static void marxbot_sdhc2_exit(struct device *dev, void *data) |
| 69 | { |
| 70 | free_irq(gpio_to_irq(SDHC2_CD), data); |
| 71 | } |
| 72 | |
| 73 | static struct imxmmc_platform_data sdhc2_pdata = { |
| 74 | .get_ro = marxbot_sdhc2_get_ro, |
| 75 | .init = marxbot_sdhc2_init, |
| 76 | .exit = marxbot_sdhc2_exit, |
| 77 | }; |
| 78 | |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 79 | /* |
| 80 | * system init for baseboard usage. Will be called by mx31moboard init. |
| 81 | */ |
| 82 | void __init mx31moboard_marxbot_init(void) |
| 83 | { |
| 84 | printk(KERN_INFO "Initializing mx31marxbot peripherals\n"); |
Valentin Longchamp | 56c7a45 | 2009-04-22 10:55:50 +0200 | [diff] [blame] | 85 | |
| 86 | mxc_iomux_setup_multiple_pins(marxbot_pins, ARRAY_SIZE(marxbot_pins), |
| 87 | "marxbot"); |
Valentin Longchamp | 45b131a | 2009-04-21 10:24:56 +0200 | [diff] [blame^] | 88 | |
| 89 | mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata); |
Valentin Longchamp | e00f0b4 | 2009-02-16 12:47:51 +0100 | [diff] [blame] | 90 | } |