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 .bank_stride = 1, 42 }; 43 44 static struct platform_device omap15xx_mpu_gpio = { 45 .name = "omap_gpio", 46 .id = 0, 47 .dev = { 48 .platform_data = &omap15xx_mpu_gpio_config, 49 }, 50 .num_resources = ARRAY_SIZE(omap15xx_mpu_gpio_resources), 51 .resource = omap15xx_mpu_gpio_resources, 52 }; 53 54 /* gpio2 */ 55 static struct __initdata resource omap15xx_gpio_resources[] = { 56 { 57 .start = OMAP1510_GPIO_BASE, 58 .end = OMAP1510_GPIO_BASE + SZ_2K - 1, 59 .flags = IORESOURCE_MEM, 60 }, 61 { 62 .start = INT_GPIO_BANK1, 63 .flags = IORESOURCE_IRQ, 64 }, 65 }; 66 67 static struct __initdata omap_gpio_platform_data omap15xx_gpio_config = { 68 .virtual_irq_start = IH_GPIO_BASE, 69 .bank_type = METHOD_GPIO_1510, 70 .bank_width = 16, 71 }; 72 73 static struct platform_device omap15xx_gpio = { 74 .name = "omap_gpio", 75 .id = 1, 76 .dev = { 77 .platform_data = &omap15xx_gpio_config, 78 }, 79 .num_resources = ARRAY_SIZE(omap15xx_gpio_resources), 80 .resource = omap15xx_gpio_resources, 81 }; 82 83 /* 84 * omap15xx_gpio_init needs to be done before 85 * machine_init functions access gpio APIs. 86 * Hence omap15xx_gpio_init is a postcore_initcall. 87 */ 88 static int __init omap15xx_gpio_init(void) 89 { 90 if (!cpu_is_omap15xx()) 91 return -EINVAL; 92 93 platform_device_register(&omap15xx_mpu_gpio); 94 platform_device_register(&omap15xx_gpio); 95 96 gpio_bank_count = 2; 97 return 0; 98 } 99 postcore_initcall(omap15xx_gpio_init); 100