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Date: Sat, 20 Nov 2010 14:39:11 +0300 From: Sergei Shtylyov <sshtylyov@...sta.com> To: srinath@...tralsolutions.com CC: linux-omap@...r.kernel.org, nm@...com, linux@....linux.org.uk, umeshk@...tralsolutions.com, tony@...mide.com, nagendra@...tralsolutions.com, linux-kernel@...r.kernel.org, khilman@...prootsystems.com, jdk@...com, linux-arm-kernel@...ts.infradead.org Subject: Re: [Patch v1] AM35xx: Craneboard: Add USB EHCI support Hello. On 19-11-2010 19:07, srinath@...tralsolutions.com wrote: > From: Srinath<srinath@...tralsolutions.com> > AM3517/05 Craneboard has one EHCI interface on board using port1. > GPIO35 is used as power enable. > GPIO38 is used as port1 PHY reset. > Signed-off-by: Srinath<srinath@...tralsolutions.com> > --- > arch/arm/mach-omap2/board-am3517crane.c | 21 +++++++++++++++++++++ > 1 files changed, 21 insertions(+), 0 deletions(-) > diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c > index 13ead33..0e1a806 100644 > --- a/arch/arm/mach-omap2/board-am3517crane.c > +++ b/arch/arm/mach-omap2/board-am3517crane.c [...] > @@ -53,10 +55,29 @@ 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] = 38, > + .reset_gpio_port[1] = -EINVAL, > + .reset_gpio_port[2] = -EINVAL > +}; > + > static void __init am3517_crane_init(void) > { > omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); > omap_serial_init(); > + > + /* Configure GPIO for EHCI port */ > + omap_mux_init_gpio(35, OMAP_PIN_OUTPUT); > + gpio_request(35, "usb_ehci_enable"); > + gpio_direction_output(35, 1); > + gpio_set_value(35, 1); There's no need to call gpio_set_value(), as gpio_direction_output() has already set the GPIO's value. WBR, Sergei -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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