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tegra: usb: Add support for Tegra USB peripheral

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This adds basic support for the Tegra2 USB controller. Board files should
call board_usb_init() to set things up.

Configuration is performed through the FDT, with aliases used to set the
order of the ports, like this fragment:

        aliases {
		/* This defines the order of our USB ports */
                usb0 = "/usb@0xc5008000";
                usb1 = "/usb@0xc5000000";
        };

drivers/usb/host files ONLY: Acked-by: Remy Bohmer <linux@bohmer.net>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Simon Glass
2012-02-27 10:52:49 +00:00
committed by Albert ARIBAUD
parent ed2974493e
commit 87f938c9f7
8 changed files with 782 additions and 1 deletions
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1
drivers/usb/host/Makefile
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@@ -50,6 +50,7 @@ COBJS-$(CONFIG_USB_EHCI_PPC4XX) += ehci-ppc4xx.o
COBJS-$(CONFIG_USB_EHCI_IXP4XX) += ehci-ixp.o
COBJS-$(CONFIG_USB_EHCI_MARVELL) += ehci-marvell.o
COBJS-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o
COBJS-$(CONFIG_USB_EHCI_TEGRA) += ehci-tegra.o
COBJS-$(CONFIG_USB_EHCI_VCT) += ehci-vct.o
COBJS := $(COBJS-y)

62
drivers/usb/host/ehci-tegra.c Normal file
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@@ -0,0 +1,62 @@
/*
* Copyright (c) 2009 NVIDIA Corporation
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <usb.h>
#include "ehci.h"
#include "ehci-core.h"
#include <asm/errno.h>
#include <asm/arch/usb.h>
/*
* Create the appropriate control structures to manage
* a new EHCI host controller.
*/
int ehci_hcd_init(void)
{
u32 our_hccr, our_hcor;
/*
* Select the first port, as we don't have a way of selecting others
* yet
*/
if (tegrausb_start_port(0, &our_hccr, &our_hcor))
return -1;
hccr = (struct ehci_hccr *)our_hccr;
hcor = (struct ehci_hcor *)our_hcor;
return 0;
}
/*
* Destroy the appropriate control structures corresponding
* the the EHCI host controller.
*/
int ehci_hcd_stop(void)
{
tegrausb_stop_port();
return 0;
}