We now have DEVICE_ID_DYNAMIC for dynamic allocation of device ids, Use it where applicable. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
99 lines
2.2 KiB
C
99 lines
2.2 KiB
C
/*
|
|
* (C) Copyright 2010 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
|
|
*
|
|
* 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; version 2 of
|
|
* the License.
|
|
*
|
|
* 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 <linux/clk.h>
|
|
#include <driver.h>
|
|
#include <init.h>
|
|
#include <usb/usb.h>
|
|
#include <usb/usb_defs.h>
|
|
#include <errno.h>
|
|
#include <io.h>
|
|
|
|
#include "ohci.h"
|
|
|
|
/* interface and function clocks; sometimes also an AHB clock */
|
|
static struct clk *iclk, *fclk;
|
|
|
|
static void at91_start_clock(void)
|
|
{
|
|
clk_enable(iclk);
|
|
clk_enable(fclk);
|
|
}
|
|
|
|
static void at91_stop_clock(void)
|
|
{
|
|
clk_disable(fclk);
|
|
clk_disable(iclk);
|
|
}
|
|
|
|
static int at91_ohci_probe(struct device_d *dev)
|
|
{
|
|
struct ohci_regs __iomem *regs = (struct ohci_regs __iomem *)dev->resource[0].start;
|
|
|
|
iclk = clk_get(NULL, "ohci_clk");
|
|
fclk = clk_get(NULL, "uhpck");
|
|
|
|
/*
|
|
* Start the USB clocks.
|
|
*/
|
|
at91_start_clock();
|
|
|
|
/*
|
|
* The USB host controller must remain in reset.
|
|
*/
|
|
writel(0, ®s->control);
|
|
|
|
add_generic_device("ohci", DEVICE_ID_DYNAMIC, NULL, dev->resource[0].start,
|
|
dev->resource[0].size, IORESOURCE_MEM, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void at91_ohci_remove(struct device_d *dev)
|
|
{
|
|
struct ohci_regs __iomem *regs = (struct ohci_regs __iomem *)dev->resource[0].start;
|
|
|
|
/*
|
|
* Put the USB host controller into reset.
|
|
*/
|
|
writel(0, ®s->control);
|
|
|
|
/*
|
|
* Stop the USB clocks.
|
|
*/
|
|
at91_stop_clock();
|
|
}
|
|
|
|
static struct driver_d at91_ohci_driver = {
|
|
.name = "at91_ohci",
|
|
.probe = at91_ohci_probe,
|
|
.remove = at91_ohci_remove,
|
|
};
|
|
|
|
static int at91_ohci_init(void)
|
|
{
|
|
register_driver(&at91_ohci_driver);
|
|
return 0;
|
|
}
|
|
device_initcall(at91_ohci_init);
|