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/*
* Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
*
* Initial development of this code was funded by
* Phytec Messtechnik GmbH, http://www.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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <mach/audmux.h>
#include <mach/hardware.h>
static void __iomem *audmux_base;
static unsigned char port_mapping[] = {
0x0, 0x4, 0x8, 0x10, 0x14, 0x1c,
};
int mxc_audmux_v1_configure_port(unsigned int port, unsigned int pcr)
{
if (!audmux_base) {
printk("%s: not configured\n", __func__);
return -ENOSYS;
}
if (port >= ARRAY_SIZE(port_mapping))
return -EINVAL;
writel(pcr, audmux_base + port_mapping[port]);
return 0;
}
EXPORT_SYMBOL_GPL(mxc_audmux_v1_configure_port);
static int mxc_audmux_v1_init(void)
{
#ifdef CONFIG_MACH_MX21
if (cpu_is_mx21())
audmux_base = MX21_IO_ADDRESS(MX21_AUDMUX_BASE_ADDR);
else
#endif
#ifdef CONFIG_MACH_MX27
if (cpu_is_mx27())
audmux_base = MX27_IO_ADDRESS(MX27_AUDMUX_BASE_ADDR);
else
#endif
(void)0;
return 0;
}
postcore_initcall(mxc_audmux_v1_init);
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