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123 lines
3.1 KiB
123 lines
3.1 KiB
/* |
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* OMAP15xx specific gpio init |
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* |
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* Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/ |
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* |
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* Author: |
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* Charulatha V <[email protected]> |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation version 2. |
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* |
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any |
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* kind, whether express or implied; without even the implied warranty |
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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*/ |
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#include <linux/gpio.h> |
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#include <linux/platform_data/gpio-omap.h> |
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#include <mach/irqs.h> |
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#define OMAP1_MPUIO_VBASE OMAP1_MPUIO_BASE |
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#define OMAP1510_GPIO_BASE 0xFFFCE000 |
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/* gpio1 */ |
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static struct resource omap15xx_mpu_gpio_resources[] = { |
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{ |
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.start = OMAP1_MPUIO_VBASE, |
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.end = OMAP1_MPUIO_VBASE + SZ_2K - 1, |
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.flags = IORESOURCE_MEM, |
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}, |
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{ |
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.start = INT_MPUIO, |
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.flags = IORESOURCE_IRQ, |
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}, |
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}; |
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static struct omap_gpio_reg_offs omap15xx_mpuio_regs = { |
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.revision = USHRT_MAX, |
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.direction = OMAP_MPUIO_IO_CNTL, |
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.datain = OMAP_MPUIO_INPUT_LATCH, |
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.dataout = OMAP_MPUIO_OUTPUT, |
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.irqstatus = OMAP_MPUIO_GPIO_INT, |
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.irqenable = OMAP_MPUIO_GPIO_MASKIT, |
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.irqenable_inv = true, |
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.irqctrl = OMAP_MPUIO_GPIO_INT_EDGE, |
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}; |
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static struct omap_gpio_platform_data omap15xx_mpu_gpio_config = { |
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.is_mpuio = true, |
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.bank_width = 16, |
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.bank_stride = 1, |
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.regs = &omap15xx_mpuio_regs, |
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}; |
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static struct platform_device omap15xx_mpu_gpio = { |
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.name = "omap_gpio", |
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.id = 0, |
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.dev = { |
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.platform_data = &omap15xx_mpu_gpio_config, |
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}, |
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.num_resources = ARRAY_SIZE(omap15xx_mpu_gpio_resources), |
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.resource = omap15xx_mpu_gpio_resources, |
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}; |
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/* gpio2 */ |
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static struct resource omap15xx_gpio_resources[] = { |
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{ |
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.start = OMAP1510_GPIO_BASE, |
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.end = OMAP1510_GPIO_BASE + SZ_2K - 1, |
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.flags = IORESOURCE_MEM, |
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}, |
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{ |
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.start = INT_GPIO_BANK1, |
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.flags = IORESOURCE_IRQ, |
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}, |
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}; |
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static struct omap_gpio_reg_offs omap15xx_gpio_regs = { |
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.revision = USHRT_MAX, |
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.direction = OMAP1510_GPIO_DIR_CONTROL, |
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.datain = OMAP1510_GPIO_DATA_INPUT, |
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.dataout = OMAP1510_GPIO_DATA_OUTPUT, |
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.irqstatus = OMAP1510_GPIO_INT_STATUS, |
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.irqenable = OMAP1510_GPIO_INT_MASK, |
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.irqenable_inv = true, |
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.irqctrl = OMAP1510_GPIO_INT_CONTROL, |
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.pinctrl = OMAP1510_GPIO_PIN_CONTROL, |
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}; |
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static struct omap_gpio_platform_data omap15xx_gpio_config = { |
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.bank_width = 16, |
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.regs = &omap15xx_gpio_regs, |
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}; |
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static struct platform_device omap15xx_gpio = { |
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.name = "omap_gpio", |
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.id = 1, |
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.dev = { |
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.platform_data = &omap15xx_gpio_config, |
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}, |
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.num_resources = ARRAY_SIZE(omap15xx_gpio_resources), |
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.resource = omap15xx_gpio_resources, |
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}; |
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/* |
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* omap15xx_gpio_init needs to be done before |
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* machine_init functions access gpio APIs. |
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* Hence omap15xx_gpio_init is a postcore_initcall. |
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*/ |
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static int __init omap15xx_gpio_init(void) |
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{ |
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if (!cpu_is_omap15xx()) |
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return -EINVAL; |
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platform_device_register(&omap15xx_mpu_gpio); |
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platform_device_register(&omap15xx_gpio); |
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return 0; |
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} |
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postcore_initcall(omap15xx_gpio_init);
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