2 * Based on the iomux-v3.c from Linux kernel:
3 * Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de>
4 * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH,
7 * Copyright (C) 2004-2011 Freescale Semiconductor, Inc.
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
25 #include <asm/arch/imx-regs.h>
26 #include <asm/imx-common/iomux-v3.h>
28 static void *base = (void *)IOMUXC_BASE_ADDR;
31 * configures a single pad in the iomuxer
33 void imx_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;
38 (pad & MUX_SEL_INPUT_OFS_MASK) >> MUX_SEL_INPUT_OFS_SHIFT;
40 (pad & MUX_SEL_INPUT_MASK) >> MUX_SEL_INPUT_SHIFT;
42 (pad & MUX_PAD_CTRL_OFS_MASK) >> MUX_PAD_CTRL_OFS_SHIFT;
43 u32 pad_ctrl = (pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT;
46 __raw_writel(mux_mode, base + mux_ctrl_ofs);
49 __raw_writel(sel_input, base + sel_input_ofs);
51 #ifdef CONFIG_IOMUX_SHARE_CONF_REG
52 if (!(pad_ctrl & NO_PAD_CTRL))
53 __raw_writel((mux_mode << PAD_MUX_MODE_SHIFT) | pad_ctrl,
56 if (!(pad_ctrl & NO_PAD_CTRL) && pad_ctrl_ofs)
57 __raw_writel(pad_ctrl, base + pad_ctrl_ofs);
61 void imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t const *pad_list,
64 iomux_v3_cfg_t const *p = pad_list;
67 for (i = 0; i < count; i++)
68 imx_iomux_v3_setup_pad(*p++);