Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755270Ab0LARXX (ORCPT ); Wed, 1 Dec 2010 12:23:23 -0500 Received: from mail-pv0-f174.google.com ([74.125.83.174]:48461 "EHLO mail-pv0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754793Ab0LARXW (ORCPT ); Wed, 1 Dec 2010 12:23:22 -0500 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, nm@ti.com, nagendra@mistralsolutions.com, umeshk@mistralsolutions.com, Srinath Subject: [Patch v3] AM35xx: Craneboard: Add USB EHCI support Date: Wed, 1 Dec 2010 22:28:50 +0530 Message-Id: <1291222730-17614-1-git-send-email-srinath@mistralsolutions.com> X-Mailer: git-send-email 1.7.1.226.g770c5 In-Reply-To: <[PATCH] Craneboard: Add USB EHCI Support> References: <[PATCH] Craneboard: Add USB EHCI Support> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2379 Lines: 87 From: Srinath AM3517/05 Craneboard has one EHCI interface on board using port1. GPIO35 is used as power enable. GPIO38 is used as port1 PHY reset. History: http://marc.info/?l=linux-omap&w=2&r=1&s=Craneboard%3A+Add+USB+EHCI+support&q=t Signed-off-by: Srinath --- arch/arm/mach-omap2/board-am3517crane.c | 40 +++++++++++++++++++++++++++++++ 1 files changed, 40 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c index 13ead33..6fd5dfe 100644 --- a/arch/arm/mach-omap2/board-am3517crane.c +++ b/arch/arm/mach-omap2/board-am3517crane.c @@ -28,8 +28,13 @@ #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 = { @@ -53,10 +58,45 @@ static void __init am3517_crane_init_irq(void) omap_gpio_init(); } +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 */ + omap_mux_init_gpio(GPIO_USB_POWER, OMAP_PIN_OUTPUT); + + ret = gpio_request(GPIO_USB_POWER, "usb_ehci_enable"); + if (ret < 0) { + pr_err("Cannot request GPIO %d\n", GPIO_USB_POWER); + return; + } + + ret = gpio_direction_output(GPIO_USB_POWER, 1); + if (ret < 0) + goto err; + + omap_mux_init_gpio(GPIO_USB_NRESET, OMAP_PIN_OUTPUT); + usb_ehci_init(&ehci_pdata); + return; + +err: + gpio_free(GPIO_USB_POWER); + pr_err("Unable to initialize EHCI power\n"); + return; } MACHINE_START(CRANEBOARD, "AM3517/05 CRANEBOARD") -- 1.7.1.226.g770c5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/