From patchwork Mon Sep 27 16:05:49 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tim Nordell X-Patchwork-Id: 212902 X-Patchwork-Delegate: tony@atomide.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id o8RG71Ec010730 for ; Mon, 27 Sep 2010 16:07:03 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933202Ab0I0QGY (ORCPT ); Mon, 27 Sep 2010 12:06:24 -0400 Received: from mail.logicpd.com ([66.162.60.3]:29868 "EHLO smtp.logicpd.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1759755Ab0I0QFu (ORCPT ); Mon, 27 Sep 2010 12:05:50 -0400 Received: from mplswks321.logicpd.com ([10.0.5.8]) by smtp.logicpd.com with Microsoft SMTPSVC(6.0.3790.4675); Mon, 27 Sep 2010 11:05:47 -0500 From: Tim Nordell To: linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Tim Nordell Subject: [PATCH v4 3/4] ARM: OMAP3: Add generic smsc911x support when connected to GPMC Date: Mon, 27 Sep 2010 11:05:49 -0500 Message-Id: <1285603550-6382-4-git-send-email-tim.nordell@logicpd.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1285603550-6382-1-git-send-email-tim.nordell@logicpd.com> References: <1285603550-6382-1-git-send-email-tim.nordell@logicpd.com> X-OriginalArrivalTime: 27 Sep 2010 16:05:47.0398 (UTC) FILETIME=[D8E3FA60:01CB5E5D] 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]); Mon, 27 Sep 2010 16:07:03 +0000 (UTC) diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 9feadd8..f7ec388 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -178,3 +178,6 @@ obj-y += $(nand-m) $(nand-y) smc91x-$(CONFIG_SMC91X) := gpmc-smc91x.o obj-y += $(smc91x-m) $(smc91x-y) + +smsc911x-$(CONFIG_SMSC911X) := gpmc-smsc911x.o +obj-y += $(smsc911x-m) $(smsc911x-y) diff --git a/arch/arm/mach-omap2/gpmc-smsc911x.c b/arch/arm/mach-omap2/gpmc-smsc911x.c new file mode 100644 index 0000000..703f150 --- /dev/null +++ b/arch/arm/mach-omap2/gpmc-smsc911x.c @@ -0,0 +1,113 @@ +/* + * linux/arch/arm/mach-omap2/gpmc-smsc911x.c + * + * Copyright (C) 2009 Li-Pro.Net + * Stephan Linz + * + * Modified from linux/arch/arm/mach-omap2/gpmc-smc91x.c + * + * 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 +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +static struct omap_smsc911x_platform_data *gpmc_cfg; + +static struct resource gpmc_smsc911x_resources[] = { + [0] = { + .flags = IORESOURCE_MEM, + }, + [1] = { + .flags = IORESOURCE_IRQ, + }, +}; + +static struct smsc911x_platform_config gpmc_smsc911x_config = { + .phy_interface = PHY_INTERFACE_MODE_MII, + .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, + .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, + .flags = SMSC911X_USE_16BIT, +}; + +static struct platform_device gpmc_smsc911x_device = { + .name = "smsc911x", + .id = -1, + .num_resources = ARRAY_SIZE(gpmc_smsc911x_resources), + .resource = gpmc_smsc911x_resources, + .dev = { + .platform_data = &gpmc_smsc911x_config, + }, +}; + +/* + * Initialize smsc911x device connected to the GPMC. Note that we + * assume that pin multiplexing is done in the board-*.c file, + * or in the bootloader. + */ +void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *board_data) +{ + unsigned long cs_mem_base; + int ret; + + gpmc_cfg = board_data; + + if (gpmc_cs_request(gpmc_cfg->cs, SZ_16M, &cs_mem_base) < 0) { + printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n"); + return; + } + + gpmc_smsc911x_resources[0].start = cs_mem_base + 0x0; + gpmc_smsc911x_resources[0].end = cs_mem_base + 0xff; + + if (gpio_request(gpmc_cfg->gpio_irq, "smsc911x irq") < 0) { + printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n", + gpmc_cfg->gpio_irq); + goto free1; + } + + gpio_direction_input(gpmc_cfg->gpio_irq); + gpmc_smsc911x_resources[1].start = gpio_to_irq(gpmc_cfg->gpio_irq); + gpmc_smsc911x_resources[1].flags |= + (gpmc_cfg->flags & IRQF_TRIGGER_MASK); + + if (gpio_is_valid(gpmc_cfg->gpio_reset)) { + ret = gpio_request(gpmc_cfg->gpio_reset, "smsc911x reset"); + if (ret) { + printk(KERN_ERR "Failed to request GPIO%d for smsc911x reset\n", + gpmc_cfg->gpio_reset); + goto free2; + } + + gpio_direction_output(gpmc_cfg->gpio_reset, 1); + gpio_set_value(gpmc_cfg->gpio_reset, 0); + msleep(100); + gpio_set_value(gpmc_cfg->gpio_reset, 1); + } + + if (platform_device_register(&gpmc_smsc911x_device) < 0) { + printk(KERN_ERR "Unable to register smsc911x device\n"); + gpio_free(gpmc_cfg->gpio_reset); + goto free2; + } + + return; + +free2: + gpio_free(gpmc_cfg->gpio_irq); +free1: + gpmc_cs_free(gpmc_cfg->cs); + + printk(KERN_ERR "Could not initialize smsc911x\n"); +} diff --git a/arch/arm/plat-omap/include/plat/gpmc-smsc911x.h b/arch/arm/plat-omap/include/plat/gpmc-smsc911x.h new file mode 100644 index 0000000..e5f3a48 --- /dev/null +++ b/arch/arm/plat-omap/include/plat/gpmc-smsc911x.h @@ -0,0 +1,35 @@ +/* + * arch/arm/plat-omap/include/mach/gpmc-smsc911x.h + * + * Copyright (C) 2009 Li-Pro.Net + * Stephan Linz + * + * Modified from arch/arm/plat-omap/include/mach/gpmc-smc91x.h + * + * 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. + */ + +#ifndef __ASM_ARCH_OMAP_GPMC_SMSC911X_H__ + +struct omap_smsc911x_platform_data { + int cs; + int gpio_irq; + int gpio_reset; + u32 flags; +}; + +#if defined(CONFIG_SMSC911X) || \ + defined(CONFIG_SMSC911X_MODULE) + +extern void gpmc_smsc911x_init(struct omap_smsc911x_platform_data *d); + +#else + +static inline void gpmc_smsc911x_init(struct omap_smsc911x_platform_data *d) +{ +} + +#endif +#endif