From 267dd34c47a5b046ed500be17089983dc3d8158d Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Thu, 13 Sep 2012 13:26:00 +0800 Subject: ARM: imx: move iomux drivers and headers into mach-imx The board files in mach-imx are the only users of iomux drivers and headers. Move them into mach-imx from plat-mxc. Signed-off-by: Shawn Guo Acked-by: Sascha Hauer Acked-by: Arnd Bergmann --- arch/arm/mach-imx/iomux-v3.c | 79 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 arch/arm/mach-imx/iomux-v3.c (limited to 'arch/arm/mach-imx/iomux-v3.c') diff --git a/arch/arm/mach-imx/iomux-v3.c b/arch/arm/mach-imx/iomux-v3.c new file mode 100644 index 00000000000..de1459c57a9 --- /dev/null +++ b/arch/arm/mach-imx/iomux-v3.c @@ -0,0 +1,79 @@ +/* + * Copyright 2004-2006 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright (C) 2008 by Sascha Hauer + * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH, + * + * + * 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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "iomux-v3.h" + +static void __iomem *base; + +/* + * configures a single pad in the iomuxer + */ +int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t pad) +{ + u32 mux_ctrl_ofs = (pad & MUX_CTRL_OFS_MASK) >> MUX_CTRL_OFS_SHIFT; + u32 mux_mode = (pad & MUX_MODE_MASK) >> MUX_MODE_SHIFT; + u32 sel_input_ofs = (pad & MUX_SEL_INPUT_OFS_MASK) >> MUX_SEL_INPUT_OFS_SHIFT; + u32 sel_input = (pad & MUX_SEL_INPUT_MASK) >> MUX_SEL_INPUT_SHIFT; + u32 pad_ctrl_ofs = (pad & MUX_PAD_CTRL_OFS_MASK) >> MUX_PAD_CTRL_OFS_SHIFT; + u32 pad_ctrl = (pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT; + + if (mux_ctrl_ofs) + __raw_writel(mux_mode, base + mux_ctrl_ofs); + + if (sel_input_ofs) + __raw_writel(sel_input, base + sel_input_ofs); + + if (!(pad_ctrl & NO_PAD_CTRL) && pad_ctrl_ofs) + __raw_writel(pad_ctrl, base + pad_ctrl_ofs); + + return 0; +} +EXPORT_SYMBOL(mxc_iomux_v3_setup_pad); + +int mxc_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t *pad_list, unsigned count) +{ + iomux_v3_cfg_t *p = pad_list; + int i; + int ret; + + for (i = 0; i < count; i++) { + ret = mxc_iomux_v3_setup_pad(*p); + if (ret) + return ret; + p++; + } + return 0; +} +EXPORT_SYMBOL(mxc_iomux_v3_setup_multiple_pads); + +void mxc_iomux_v3_init(void __iomem *iomux_v3_base) +{ + base = iomux_v3_base; +} -- cgit v1.2.3-70-g09d2