From patchwork Tue May 18 14:50:52 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: charu@ti.com X-Patchwork-Id: 100508 X-Patchwork-Delegate: khilman@deeprootsystems.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o4IEoAhR012522 for ; Tue, 18 May 2010 14:50:11 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757884Ab0EROt7 (ORCPT ); Tue, 18 May 2010 10:49:59 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:35804 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757887Ab0EROtz (ORCPT ); Tue, 18 May 2010 10:49:55 -0400 Received: from dbdp31.itg.ti.com ([172.24.170.98]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id o4IEnl27003465 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 18 May 2010 09:49:49 -0500 Received: from localhost.localdomain (localhost [127.0.0.1]) by dbdp31.itg.ti.com (8.13.8/8.13.8) with ESMTP id o4IEngiJ019456; Tue, 18 May 2010 20:19:46 +0530 (IST) From: Charulatha V To: linux-omap@vger.kernel.org Cc: rnayak@ti.com, paul@pwsan.com, tony@atomide.com, khilman@deeprootsystems.com, Charulatha V Subject: [PATCH 03/11] OMAP: GPIO: Introduce support for OMAP15xx chip GPIO init Date: Tue, 18 May 2010 20:20:52 +0530 Message-Id: <1274194260-16401-4-git-send-email-charu@ti.com> X-Mailer: git-send-email 1.6.3.3 In-Reply-To: <1274194260-16401-3-git-send-email-charu@ti.com> References: <1274194260-16401-1-git-send-email-charu@ti.com> <1274194260-16401-2-git-send-email-charu@ti.com> <1274194260-16401-3-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 (demeter.kernel.org [140.211.167.41]); Tue, 18 May 2010 14:50:11 +0000 (UTC) diff --git a/arch/arm/mach-omap1/gpio15xx.c b/arch/arm/mach-omap1/gpio15xx.c new file mode 100644 index 0000000..c9082bd --- /dev/null +++ b/arch/arm/mach-omap1/gpio15xx.c @@ -0,0 +1,99 @@ +/* + * gpio15xx.c - OMAP15XX-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 + +static struct omap_gpio_dev_attr omap15xx_gpio_attr = { + .gpio_bank_count = 2, + .gpio_bank_bits = 16, + .arm_gpio_ck_flag = true, +}; + +/* + * OMAP15XX GPIO1 interface data + */ +static struct __initdata resource omap15xx_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 omap15xx_mpu_gpio_config = { + .virtual_irq_start = IH_MPUIO_BASE, + .method = METHOD_MPUIO, + .gpio_attr = &omap15xx_gpio_attr, +}; + +static struct __initdata platform_device omap15xx_mpu_gpio = { + .name = "omap-gpio", + .id = 0, + .dev = { + .platform_data = &omap15xx_mpu_gpio_config, + }, + .num_resources = ARRAY_SIZE(omap15xx_mpu_gpio_resources), + .resource = omap15xx_mpu_gpio_resources, +}; + +/* + * OMAP15XX GPIO2 interface data + */ +static struct __initdata resource omap15xx_gpio_resources[] = { + { + .start = OMAP1510_GPIO_BASE, + .end = OMAP1510_GPIO_BASE + SZ_2K - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_GPIO_BANK1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct __initdata omap_gpio_platform_data omap15xx_gpio_config = { + .virtual_irq_start = IH_GPIO_BASE, + .method = METHOD_GPIO_1510, + .gpio_attr = &omap15xx_gpio_attr, +}; + +static struct __initdata platform_device omap15xx_gpio = { + .name = "omap-gpio", + .id = 1, + .dev = { + .platform_data = &omap15xx_gpio_config, + }, + .num_resources = ARRAY_SIZE(omap15xx_gpio_resources), + .resource = omap15xx_gpio_resources, +}; + +/* + * omap15xx_gpio_init needs to be done before + * machine_init functions access gpio APIs. + * Hence omap15xx_gpio_init is a postcore_initcall. + */ +static int __init omap15xx_gpio_init(void) +{ + if (!cpu_is_omap15xx()) + return -EINVAL; + + platform_device_register(&omap15xx_mpu_gpio); + platform_device_register(&omap15xx_gpio); + + return 0; +} +postcore_initcall(omap15xx_gpio_init);