2 * Copyright 2004-2006 Freescale Semiconductor, Inc. All Rights Reserved.
3 * Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de>
4 * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH,
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
24 #include <asm/arch/imx-regs.h>
25 #include <asm/arch/iomux-v3.h>
26 #include <asm/arch/sys_proto.h>
28 static void __iomem *base = (void __iomem *)IOMUXC_BASE_ADDR;
31 * configures a single pad in the iomuxer
33 int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t pad)
35 u32 mux_ctrl_ofs = (pad & MUX_CTRL_OFS_MASK) >> MUX_CTRL_OFS_SHIFT;
36 u32 mux_mode = (pad & MUX_MODE_MASK) >> MUX_MODE_SHIFT;
37 u32 sel_input_ofs = (pad & MUX_SEL_INPUT_OFS_MASK) >> MUX_SEL_INPUT_OFS_SHIFT;
38 u32 sel_input = (pad & MUX_SEL_INPUT_MASK) >> MUX_SEL_INPUT_SHIFT;
39 u32 pad_ctrl_ofs = (pad & MUX_PAD_CTRL_OFS_MASK) >> MUX_PAD_CTRL_OFS_SHIFT;
40 u32 pad_ctrl = (pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT;
43 __raw_writel(mux_mode, base + mux_ctrl_ofs);
46 __raw_writel(sel_input, base + sel_input_ofs);
48 if (!(pad_ctrl & NO_PAD_CTRL) && pad_ctrl_ofs)
49 __raw_writel(pad_ctrl, base + pad_ctrl_ofs);
54 int mxc_iomux_v3_setup_multiple_pads(const iomux_v3_cfg_t *pad_list, unsigned count)
56 const iomux_v3_cfg_t *p = pad_list;
60 for (i = 0; i < count; i++) {
61 ret = mxc_iomux_v3_setup_pad(*p);