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Sat, 18 Sep 2010 19:46:08 +0530 (IST) From: "Varadarajan, Charulatha" To: tony@atomide.com, linux-omap@vger.kernel.org Cc: khilman@deeprootsystems.com, paul@pwsan.com, b-cousson@ti.com, rnayak@ti.com, p-basak2@ti.com, "Varadarajan, Charulatha" Subject: [PATCH v6 03/13] OMAP: GPIO: Introduce support for OMAP16xx chip GPIO init Date: Sat, 18 Sep 2010 19:45:43 +0530 Message-Id: <1284819353-8512-4-git-send-email-charu@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1284819353-8512-1-git-send-email-charu@ti.com> References: <1284819353-8512-1-git-send-email-charu@ti.com> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Sat, 18 Sep 2010 14:16:25 +0000 (UTC) diff --git a/arch/arm/mach-omap1/gpio16xx.c b/arch/arm/mach-omap1/gpio16xx.c new file mode 100644 index 0000000..4c273b3 --- /dev/null +++ b/arch/arm/mach-omap1/gpio16xx.c @@ -0,0 +1,208 @@ +/* + * OMAP16XX-specific gpio code + * + * Copyright (C) 2010 Texas Instruments, Inc. + * + * Author: + * Charulatha V + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include + +#define OMAP1610_GPIO1_BASE 0xfffbe400 +#define OMAP1610_GPIO2_BASE 0xfffbec00 +#define OMAP1610_GPIO3_BASE 0xfffbb400 +#define OMAP1610_GPIO4_BASE 0xfffbbc00 +#define OMAP1_MPUIO_VBASE OMAP1_MPUIO_BASE + +static struct omap_gpio_dev_attr omap16xx_gpio_attr = { + .bank_width = 16, +}; + +/* + * OMAP16XX MPU GPIO interface data + */ +static struct __initdata resource omap16xx_mpu_gpio_resources[] = { + { + .start = OMAP1_MPUIO_VBASE, + .end = OMAP1_MPUIO_VBASE + SZ_2K - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_MPUIO, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct __initdata omap_gpio_platform_data omap16xx_mpu_gpio_config = { + .virtual_irq_start = IH_MPUIO_BASE, + .bank_type = METHOD_MPUIO, + .gpio_attr = &omap16xx_gpio_attr, +}; + +static struct __initdata platform_device omap16xx_mpu_gpio = { + .name = "omap-gpio", + .id = 0, + .dev = { + .platform_data = &omap16xx_mpu_gpio_config, + }, + .num_resources = ARRAY_SIZE(omap16xx_mpu_gpio_resources), + .resource = omap16xx_mpu_gpio_resources, +}; + +/* + * OMAP16XX GPIO1 interface data + */ +static struct __initdata resource omap16xx_gpio1_resources[] = { + { + .start = OMAP1610_GPIO1_BASE, + .end = OMAP1610_GPIO1_BASE + SZ_2K - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_GPIO_BANK1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct __initdata omap_gpio_platform_data omap16xx_gpio1_config = { + .virtual_irq_start = IH_GPIO_BASE, + .bank_type = METHOD_GPIO_1610, + .gpio_attr = &omap16xx_gpio_attr, +}; + +static struct __initdata platform_device omap16xx_gpio1 = { + .name = "omap-gpio", + .id = 1, + .dev = { + .platform_data = &omap16xx_gpio1_config, + }, + .num_resources = ARRAY_SIZE(omap16xx_gpio1_resources), + .resource = omap16xx_gpio1_resources, +}; + +/* + * OMAP16XX GPIO2 interface data + */ +static struct __initdata resource omap16xx_gpio2_resources[] = { + { + .start = OMAP1610_GPIO2_BASE, + .end = OMAP1610_GPIO2_BASE + SZ_2K - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_1610_GPIO_BANK2, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct __initdata omap_gpio_platform_data omap16xx_gpio2_config = { + .virtual_irq_start = IH_GPIO_BASE + 16, + .bank_type = METHOD_GPIO_1610, + .gpio_attr = &omap16xx_gpio_attr, +}; + +static struct __initdata platform_device omap16xx_gpio2 = { + .name = "omap-gpio", + .id = 2, + .dev = { + .platform_data = &omap16xx_gpio2_config, + }, + .num_resources = ARRAY_SIZE(omap16xx_gpio2_resources), + .resource = omap16xx_gpio2_resources, +}; + +/* + * OMAP16XX GPIO3 interface data + */ +static struct __initdata resource omap16xx_gpio3_resources[] = { + { + .start = OMAP1610_GPIO3_BASE, + .end = OMAP1610_GPIO3_BASE + SZ_2K - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_1610_GPIO_BANK3, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct __initdata omap_gpio_platform_data omap16xx_gpio3_config = { + .virtual_irq_start = IH_GPIO_BASE + 32, + .bank_type = METHOD_GPIO_1610, + .gpio_attr = &omap16xx_gpio_attr, +}; + +static struct __initdata platform_device omap16xx_gpio3 = { + .name = "omap-gpio", + .id = 3, + .dev = { + .platform_data = &omap16xx_gpio3_config, + }, + .num_resources = ARRAY_SIZE(omap16xx_gpio3_resources), + .resource = omap16xx_gpio3_resources, +}; + +/* + * OMAP16XX GPIO4 interface data + */ +static struct __initdata resource omap16xx_gpio4_resources[] = { + { + .start = OMAP1610_GPIO4_BASE, + .end = OMAP1610_GPIO4_BASE + SZ_2K - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_1610_GPIO_BANK4, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct __initdata omap_gpio_platform_data omap16xx_gpio4_config = { + .virtual_irq_start = IH_GPIO_BASE + 48, + .bank_type = METHOD_GPIO_1610, + .gpio_attr = &omap16xx_gpio_attr, +}; + +static struct __initdata platform_device omap16xx_gpio4 = { + .name = "omap-gpio", + .id = 4, + .dev = { + .platform_data = &omap16xx_gpio4_config, + }, + .num_resources = ARRAY_SIZE(omap16xx_gpio4_resources), + .resource = omap16xx_gpio4_resources, +}; + +static struct __initdata platform_device * omap16xx_gpio_dev[] = { + &omap16xx_mpu_gpio, + &omap16xx_gpio1, + &omap16xx_gpio2, + &omap16xx_gpio3, + &omap16xx_gpio4, +}; + +/* + * omap16xx_gpio_init needs to be done before + * machine_init functions access gpio APIs. + * Hence omap16xx_gpio_init is a postcore_initcall. + */ +static int __init omap16xx_gpio_init(void) +{ + int i; + + if (!cpu_is_omap16xx()) + return -EINVAL; + + for (i = 0; i < ARRAY_SIZE(omap16xx_gpio_dev); i++) + platform_device_register(omap16xx_gpio_dev[i]); + + gpio_bank_count = ARRAY_SIZE(omap16xx_gpio_dev); + + return 0; +} +postcore_initcall(omap16xx_gpio_init);