| /* |
| * 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; |
| |
| #define MXC_AUDMUX_V1_PCR(x) ((x) * 4) |
| |
| int mxc_audmux_v1_configure_port(unsigned int port, unsigned int pcr) |
| { |
| if (!audmux_base) { |
| printk("%s: not configured\n", __func__); |
| return -ENOSYS; |
| } |
| |
| writel(pcr, audmux_base + MXC_AUDMUX_V1_PCR(port)); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL_GPL(mxc_audmux_v1_configure_port); |
| |
| static int mxc_audmux_v1_init(void) |
| { |
| if (cpu_is_mx27() || cpu_is_mx21()) |
| audmux_base = IO_ADDRESS(AUDMUX_BASE_ADDR); |
| return 0; |
| } |
| |
| postcore_initcall(mxc_audmux_v1_init); |