From patchwork Mon Dec 20 13:08:43 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: srinath@mistralsolutions.com X-Patchwork-Id: 420731 X-Patchwork-Delegate: me@felipebalbi.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 oBKDbZ7K029741 for ; Mon, 20 Dec 2010 13:37:36 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754603Ab0LTNhd (ORCPT ); Mon, 20 Dec 2010 08:37:33 -0500 Received: from mail-iw0-f174.google.com ([209.85.214.174]:38242 "EHLO mail-iw0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754576Ab0LTNhc (ORCPT ); Mon, 20 Dec 2010 08:37:32 -0500 Received: by iwn9 with SMTP id 9so3132011iwn.19 for ; Mon, 20 Dec 2010 05:37:32 -0800 (PST) Received: by 10.42.217.198 with SMTP id hn6mr4125182icb.346.1292852250414; Mon, 20 Dec 2010 05:37:30 -0800 (PST) Received: from localhost ([220.227.202.101]) by mx.google.com with ESMTPS id 34sm3581644ibi.8.2010.12.20.05.37.21 (version=TLSv1/SSLv3 cipher=RC4-MD5); Mon, 20 Dec 2010 05:37:26 -0800 (PST) From: srinath@mistralsolutions.com To: linux-omap@vger.kernel.org Cc: jdk@ti.com, tony@atomide.com, linux-kernel@vger.kernel.org, linux@arm.linux.org.uk, linux-arm-kernel@lists.infradead.org, khilman@deeprootsystems.com, nagendra@mistralsolutions.com, umeshk@mistralsolutions.com, sshtylyov@mvista.com, manjugk@ti.com, babli@ti.com, Srinath Subject: [Patch v5] AM35xx: Craneboard: Add USB EHCI support Date: Mon, 20 Dec 2010 18:38:43 +0530 Message-Id: <1292850523-14583-1-git-send-email-srinath@mistralsolutions.com> X-Mailer: git-send-email 1.7.1.226.g770c5 In-Reply-To: <[PATCH] AM35xx-Craneboard-Add-USB-EHCI-support> References: <[PATCH] AM35xx-Craneboard-Add-USB-EHCI-support> 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, 20 Dec 2010 13:37:36 +0000 (UTC) diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c index 8ba4047..e56900f 100644 --- a/arch/arm/mach-omap2/board-am3517crane.c +++ b/arch/arm/mach-omap2/board-am3517crane.c @@ -19,6 +19,7 @@ #include #include +#include #include #include @@ -27,8 +28,14 @@ #include #include +#include #include "mux.h" +#include "control.h" + +#define GPIO_USB_POWER 35 +#define GPIO_USB_NRESET 38 + /* Board initialization */ static struct omap_board_config_kernel am3517_crane_config[] __initdata = { @@ -51,10 +58,51 @@ static void __init am3517_crane_init_irq(void) omap_init_irq(); } +static struct ehci_hcd_omap_platform_data ehci_pdata __initdata = { + .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY, + .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN, + .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN, + + .phy_reset = true, + .reset_gpio_port[0] = GPIO_USB_NRESET, + .reset_gpio_port[1] = -EINVAL, + .reset_gpio_port[2] = -EINVAL +}; + static void __init am3517_crane_init(void) { + int ret; + omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); omap_serial_init(); + + /* Configure GPIO for EHCI port */ + if (omap_mux_init_gpio(GPIO_USB_NRESET, OMAP_PIN_OUTPUT)) { + pr_err("Can not configure mux for GPIO_USB_NRESET %d\n", + GPIO_USB_NRESET); + return; + } + + if (omap_mux_init_gpio(GPIO_USB_POWER, OMAP_PIN_OUTPUT)) { + pr_err("Can not configure mux for GPIO_USB_POWER %d\n", + GPIO_USB_POWER); + return; + } + + ret = gpio_request(GPIO_USB_POWER, "usb_ehci_enable"); + if (ret < 0) { + pr_err("Can not request GPIO %d\n", GPIO_USB_POWER); + return; + } + + ret = gpio_direction_output(GPIO_USB_POWER, 1); + if (ret < 0) { + gpio_free(GPIO_USB_POWER); + pr_err("Unable to initialize EHCI power\n"); + return; + } + + usb_ehci_init(&ehci_pdata); } MACHINE_START(CRANEBOARD, "AM3517/05 CRANEBOARD")