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 * SPDX-License-Identifier: GPL-2.0+
13 #include <asm/arch/imx-regs.h>
14 #include <asm/imx-common/iomux-v3.h>
16 static void *base = (void *)IOMUXC_BASE_ADDR;
19 * configures a single pad in the iomuxer
21 void imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad)
23 u32 mux_ctrl_ofs = (pad & MUX_CTRL_OFS_MASK) >> MUX_CTRL_OFS_SHIFT;
24 u32 mux_mode = (pad & MUX_MODE_MASK) >> MUX_MODE_SHIFT;
26 (pad & MUX_SEL_INPUT_OFS_MASK) >> MUX_SEL_INPUT_OFS_SHIFT;
28 (pad & MUX_SEL_INPUT_MASK) >> MUX_SEL_INPUT_SHIFT;
30 (pad & MUX_PAD_CTRL_OFS_MASK) >> MUX_PAD_CTRL_OFS_SHIFT;
31 u32 pad_ctrl = (pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT;
33 #if defined CONFIG_MX6SL
34 /* Check whether LVE bit needs to be set */
35 if (pad_ctrl & PAD_CTL_LVE) {
36 pad_ctrl &= ~PAD_CTL_LVE;
37 pad_ctrl |= PAD_CTL_LVE_BIT;
42 __raw_writel(mux_mode, base + mux_ctrl_ofs);
45 __raw_writel(sel_input, base + sel_input_ofs);
47 #ifdef CONFIG_IOMUX_SHARE_CONF_REG
48 if (!(pad_ctrl & NO_PAD_CTRL))
49 __raw_writel((mux_mode << PAD_MUX_MODE_SHIFT) | pad_ctrl,
52 if (!(pad_ctrl & NO_PAD_CTRL) && pad_ctrl_ofs)
53 __raw_writel(pad_ctrl, base + pad_ctrl_ofs);
57 void imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t const *pad_list,
60 iomux_v3_cfg_t const *p = pad_list;
63 for (i = 0; i < count; i++)
64 imx_iomux_v3_setup_pad(*p++);