1 /* 2 * OMAP15xx specific gpio init 3 * 4 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ 5 * 6 * Author: 7 * Charulatha V <charu@ti.com> 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License as 11 * published by the Free Software Foundation version 2. 12 * 13 * This program is distributed "as is" WITHOUT ANY WARRANTY of any 14 * kind, whether express or implied; without even the implied warranty 15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 */ 18 19 #include <linux/gpio.h> 20 21 #define OMAP1_MPUIO_VBASE OMAP1_MPUIO_BASE 22 #define OMAP1510_GPIO_BASE 0xFFFCE000 23 24 /* gpio1 */ 25 static struct __initdata resource omap15xx_mpu_gpio_resources[] = { 26 { 27 .start = OMAP1_MPUIO_VBASE, 28 .end = OMAP1_MPUIO_VBASE + SZ_2K - 1, 29 .flags = IORESOURCE_MEM, 30 }, 31 { 32 .start = INT_MPUIO, 33 .flags = IORESOURCE_IRQ, 34 }, 35 }; 36 37 static struct __initdata omap_gpio_platform_data omap15xx_mpu_gpio_config = { 38 .virtual_irq_start = IH_MPUIO_BASE, 39 .bank_type = METHOD_MPUIO, 40 .bank_width = 16, 41 }; 42 43 static struct __initdata platform_device omap15xx_mpu_gpio = { 44 .name = "omap_gpio", 45 .id = 0, 46 .dev = { 47 .platform_data = &omap15xx_mpu_gpio_config, 48 }, 49 .num_resources = ARRAY_SIZE(omap15xx_mpu_gpio_resources), 50 .resource = omap15xx_mpu_gpio_resources, 51 }; 52 53 /* gpio2 */ 54 static struct __initdata resource omap15xx_gpio_resources[] = { 55 { 56 .start = OMAP1510_GPIO_BASE, 57 .end = OMAP1510_GPIO_BASE + SZ_2K - 1, 58 .flags = IORESOURCE_MEM, 59 }, 60 { 61 .start = INT_GPIO_BANK1, 62 .flags = IORESOURCE_IRQ, 63 }, 64 }; 65 66 static struct __initdata omap_gpio_platform_data omap15xx_gpio_config = { 67 .virtual_irq_start = IH_GPIO_BASE, 68 .bank_type = METHOD_GPIO_1510, 69 .bank_width = 16, 70 }; 71 72 static struct __initdata platform_device omap15xx_gpio = { 73 .name = "omap_gpio", 74 .id = 1, 75 .dev = { 76 .platform_data = &omap15xx_gpio_config, 77 }, 78 .num_resources = ARRAY_SIZE(omap15xx_gpio_resources), 79 .resource = omap15xx_gpio_resources, 80 }; 81 82 /* 83 * omap15xx_gpio_init needs to be done before 84 * machine_init functions access gpio APIs. 85 * Hence omap15xx_gpio_init is a postcore_initcall. 86 */ 87 static int __init omap15xx_gpio_init(void) 88 { 89 if (!cpu_is_omap15xx()) 90 return -EINVAL; 91 92 platform_device_register(&omap15xx_mpu_gpio); 93 platform_device_register(&omap15xx_gpio); 94 95 gpio_bank_count = 2; 96 return 0; 97 } 98 postcore_initcall(omap15xx_gpio_init); 99