2009-04-01 09:11:48 +00:00
|
|
|
/*
|
|
|
|
* Copyright 2004-2006 Freescale Semiconductor, Inc. All Rights Reserved.
|
|
|
|
* Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de>
|
|
|
|
* Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH,
|
|
|
|
* <armlinux@phytec.de>
|
|
|
|
*
|
|
|
|
* 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., 51 Franklin Street, Fifth Floor, Boston,
|
|
|
|
* MA 02110-1301, USA.
|
|
|
|
*/
|
|
|
|
#include <linux/errno.h>
|
|
|
|
#include <linux/init.h>
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/string.h>
|
|
|
|
#include <linux/gpio.h>
|
|
|
|
|
|
|
|
#include <mach/hardware.h>
|
|
|
|
#include <asm/mach/map.h>
|
|
|
|
#include <mach/iomux-v3.h>
|
|
|
|
|
2009-06-04 09:16:22 +00:00
|
|
|
static void __iomem *base;
|
2009-04-01 09:11:48 +00:00
|
|
|
|
|
|
|
/*
|
2010-10-26 12:28:31 +00:00
|
|
|
* configures a single pad in the iomuxer
|
2009-04-01 09:11:48 +00:00
|
|
|
*/
|
2010-10-26 12:28:31 +00:00
|
|
|
int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t *pad)
|
2009-04-01 09:11:48 +00:00
|
|
|
{
|
2010-10-26 12:28:31 +00:00
|
|
|
if (MUX_CTRL_OFS(pad))
|
|
|
|
__raw_writel(MUX_MODE(pad), base + MUX_CTRL_OFS(pad));
|
2009-04-01 09:11:48 +00:00
|
|
|
|
2010-10-26 12:28:31 +00:00
|
|
|
if (MUX_SELECT_INPUT_OFS(pad))
|
|
|
|
__raw_writel(MUX_SELECT_INPUT(pad),
|
2010-11-03 14:54:36 +00:00
|
|
|
base + MUX_SELECT_INPUT_OFS(pad));
|
2009-04-01 09:11:48 +00:00
|
|
|
|
2010-10-26 12:28:31 +00:00
|
|
|
if (!(MUX_PAD_CTRL(pad) & NO_PAD_CTRL) && MUX_PAD_CTRL_OFS(pad))
|
|
|
|
__raw_writel(MUX_PAD_CTRL(pad), base + MUX_PAD_CTRL_OFS(pad));
|
2009-04-01 09:11:48 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(mxc_iomux_v3_setup_pad);
|
|
|
|
|
2010-10-26 12:28:31 +00:00
|
|
|
int mxc_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t *pad_list, unsigned count)
|
2009-04-01 09:11:48 +00:00
|
|
|
{
|
2010-10-26 12:28:31 +00:00
|
|
|
iomux_v3_cfg_t *p = pad_list;
|
2009-04-01 09:11:48 +00:00
|
|
|
int i;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
for (i = 0; i < count; i++) {
|
|
|
|
ret = mxc_iomux_v3_setup_pad(p);
|
|
|
|
if (ret)
|
2009-10-29 16:18:02 +00:00
|
|
|
return ret;
|
2009-04-01 09:11:48 +00:00
|
|
|
p++;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(mxc_iomux_v3_setup_multiple_pads);
|
|
|
|
|
2009-06-04 09:16:22 +00:00
|
|
|
void mxc_iomux_v3_init(void __iomem *iomux_v3_base)
|
|
|
|
{
|
|
|
|
base = iomux_v3_base;
|
|
|
|
}
|