ARM: mxs: remove iomux driver

With all board files removed, there is no user of iomux driver.
Remove it.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/mach-mxs/Makefile

 # Common support
-obj-y := icoll.o iomux.o ocotp.o system.o timer.o mm.o
+obj-y := icoll.o ocotp.o system.o timer.o mm.o
 
 obj-$(CONFIG_PM) += pm.o
 

arch/arm/mach-mxs/include/mach/iomux.h

-/*
- * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH,
- *			<armlinux@phytec.de>
- * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved.
- *
- * 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.
- */
-
-#ifndef __MACH_MXS_IOMUX_H__
-#define __MACH_MXS_IOMUX_H__
-
-/*
- * IOMUX/PAD Bit field definitions
- *
- * PAD_BANK:		 0..2	(3)
- * PAD_PIN:		 3..7	(5)
- * PAD_MUXSEL:		 8..9	(2)
- * PAD_MA:		10..11	(2)
- * PAD_MA_VALID:	12	(1)
- * PAD_VOL:		13	(1)
- * PAD_VOL_VALID:	14	(1)
- * PAD_PULL:		15	(1)
- * PAD_PULL_VALID:	16	(1)
- * RESERVED:		17..31	(15)
- */
-typedef u32 iomux_cfg_t;
-
-#define MXS_PAD_BANK_SHIFT	0
-#define MXS_PAD_BANK_MASK	((iomux_cfg_t)0x7 << MXS_PAD_BANK_SHIFT)
-#define MXS_PAD_PIN_SHIFT	3
-#define MXS_PAD_PIN_MASK	((iomux_cfg_t)0x1f << MXS_PAD_PIN_SHIFT)
-#define MXS_PAD_MUXSEL_SHIFT	8
-#define MXS_PAD_MUXSEL_MASK	((iomux_cfg_t)0x3 << MXS_PAD_MUXSEL_SHIFT)
-#define MXS_PAD_MA_SHIFT	10
-#define MXS_PAD_MA_MASK		((iomux_cfg_t)0x3 << MXS_PAD_MA_SHIFT)
-#define MXS_PAD_MA_VALID_SHIFT	12
-#define MXS_PAD_MA_VALID_MASK	((iomux_cfg_t)0x1 << MXS_PAD_MA_VALID_SHIFT)
-#define MXS_PAD_VOL_SHIFT	13
-#define MXS_PAD_VOL_MASK	((iomux_cfg_t)0x1 << MXS_PAD_VOL_SHIFT)
-#define MXS_PAD_VOL_VALID_SHIFT	14
-#define MXS_PAD_VOL_VALID_MASK	((iomux_cfg_t)0x1 << MXS_PAD_VOL_VALID_SHIFT)
-#define MXS_PAD_PULL_SHIFT	15
-#define MXS_PAD_PULL_MASK	((iomux_cfg_t)0x1 << MXS_PAD_PULL_SHIFT)
-#define MXS_PAD_PULL_VALID_SHIFT 16
-#define MXS_PAD_PULL_VALID_MASK	((iomux_cfg_t)0x1 << MXS_PAD_PULL_VALID_SHIFT)
-
-#define PAD_MUXSEL_0		0
-#define PAD_MUXSEL_1		1
-#define PAD_MUXSEL_2		2
-#define PAD_MUXSEL_GPIO		3
-
-#define PAD_4MA			0
-#define PAD_8MA			1
-#define PAD_12MA		2
-#define PAD_16MA		3
-
-#define PAD_1V8			0
-#define PAD_3V3			1
-
-#define PAD_NOPULL		0
-#define PAD_PULLUP		1
-
-#define MXS_PAD_4MA	((PAD_4MA << MXS_PAD_MA_SHIFT) | \
-					MXS_PAD_MA_VALID_MASK)
-#define MXS_PAD_8MA	((PAD_8MA << MXS_PAD_MA_SHIFT) | \
-					MXS_PAD_MA_VALID_MASK)
-#define MXS_PAD_12MA	((PAD_12MA << MXS_PAD_MA_SHIFT) | \
-					MXS_PAD_MA_VALID_MASK)
-#define MXS_PAD_16MA	((PAD_16MA << MXS_PAD_MA_SHIFT) | \
-					MXS_PAD_MA_VALID_MASK)
-
-#define MXS_PAD_1V8	((PAD_1V8 << MXS_PAD_VOL_SHIFT) | \
-					MXS_PAD_VOL_VALID_MASK)
-#define MXS_PAD_3V3	((PAD_3V3 << MXS_PAD_VOL_SHIFT) | \
-					MXS_PAD_VOL_VALID_MASK)
-
-#define MXS_PAD_NOPULL	((PAD_NOPULL << MXS_PAD_PULL_SHIFT) | \
-					MXS_PAD_PULL_VALID_MASK)
-#define MXS_PAD_PULLUP	((PAD_PULLUP << MXS_PAD_PULL_SHIFT) | \
-					MXS_PAD_PULL_VALID_MASK)
-
-/* generic pad control used in most cases */
-#define MXS_PAD_CTRL	(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL)
-
-#define MXS_IOMUX_PAD(_bank, _pin, _muxsel, _ma, _vol, _pull)		\
-		(((iomux_cfg_t)(_bank) << MXS_PAD_BANK_SHIFT) |		\
-		((iomux_cfg_t)(_pin) << MXS_PAD_PIN_SHIFT) |		\
-		((iomux_cfg_t)(_muxsel) << MXS_PAD_MUXSEL_SHIFT) |	\
-		((iomux_cfg_t)(_ma) << MXS_PAD_MA_SHIFT) |		\
-		((iomux_cfg_t)(_vol) << MXS_PAD_VOL_SHIFT) |		\
-		((iomux_cfg_t)(_pull) << MXS_PAD_PULL_SHIFT))
-
-/*
- * A pad becomes naked, when none of mA, vol or pull
- * validity bits is set.
- */
-#define MXS_IOMUX_PAD_NAKED(_bank, _pin, _muxsel) \
-		MXS_IOMUX_PAD(_bank, _pin, _muxsel, 0, 0, 0)
-
-static inline unsigned int PAD_BANK(iomux_cfg_t pad)
-{
-	return (pad & MXS_PAD_BANK_MASK) >> MXS_PAD_BANK_SHIFT;
-}
-
-static inline unsigned int PAD_PIN(iomux_cfg_t pad)
-{
-	return (pad & MXS_PAD_PIN_MASK) >> MXS_PAD_PIN_SHIFT;
-}
-
-static inline unsigned int PAD_MUXSEL(iomux_cfg_t pad)
-{
-	return (pad & MXS_PAD_MUXSEL_MASK) >> MXS_PAD_MUXSEL_SHIFT;
-}
-
-static inline unsigned int PAD_MA(iomux_cfg_t pad)
-{
-	return (pad & MXS_PAD_MA_MASK) >> MXS_PAD_MA_SHIFT;
-}
-
-static inline unsigned int PAD_MA_VALID(iomux_cfg_t pad)
-{
-	return (pad & MXS_PAD_MA_VALID_MASK) >> MXS_PAD_MA_VALID_SHIFT;
-}
-
-static inline unsigned int PAD_VOL(iomux_cfg_t pad)
-{
-	return (pad & MXS_PAD_VOL_MASK) >> MXS_PAD_VOL_SHIFT;
-}
-
-static inline unsigned int PAD_VOL_VALID(iomux_cfg_t pad)
-{
-	return (pad & MXS_PAD_VOL_VALID_MASK) >> MXS_PAD_VOL_VALID_SHIFT;
-}
-
-static inline unsigned int PAD_PULL(iomux_cfg_t pad)
-{
-	return (pad & MXS_PAD_PULL_MASK) >> MXS_PAD_PULL_SHIFT;
-}
-
-static inline unsigned int PAD_PULL_VALID(iomux_cfg_t pad)
-{
-	return (pad & MXS_PAD_PULL_VALID_MASK) >> MXS_PAD_PULL_VALID_SHIFT;
-}
-
-/*
- * configures a single pad in the iomuxer
- */
-int mxs_iomux_setup_pad(iomux_cfg_t pad);
-
-/*
- * configures multiple pads
- * convenient way to call the above function with tables
- */
-int mxs_iomux_setup_multiple_pads(const iomux_cfg_t *pad_list, unsigned count);
-
-#endif /* __MACH_MXS_IOMUX_H__*/

arch/arm/mach-mxs/iomux.c

-/*
- * Copyright 2004-2006,2010 Freescale Semiconductor, Inc. All Rights Reserved.
- * Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de>
- * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH,
- *                       <armlinux@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., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301, USA.
- */
-
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/gpio.h>
-
-#include <asm/mach/map.h>
-
-#include <mach/mxs.h>
-#include <mach/iomux.h>
-
-/*
- * configures a single pad in the iomuxer
- */
-int mxs_iomux_setup_pad(iomux_cfg_t pad)
-{
-	u32 reg, ofs, bp, bm;
-	void __iomem *iomux_base = MXS_IO_ADDRESS(MXS_PINCTRL_BASE_ADDR);
-
-	/* muxsel */
-	ofs = 0x100;
-	ofs += PAD_BANK(pad) * 0x20 + PAD_PIN(pad) / 16 * 0x10;
-	bp = PAD_PIN(pad) % 16 * 2;
-	bm = 0x3 << bp;
-	reg = __raw_readl(iomux_base + ofs);
-	reg &= ~bm;
-	reg |= PAD_MUXSEL(pad) << bp;
-	__raw_writel(reg, iomux_base + ofs);
-
-	/* drive */
-	ofs = cpu_is_mx23() ? 0x200 : 0x300;
-	ofs += PAD_BANK(pad) * 0x40 + PAD_PIN(pad) / 8 * 0x10;
-	/* mA */
-	if (PAD_MA_VALID(pad)) {
-		bp = PAD_PIN(pad) % 8 * 4;
-		bm = 0x3 << bp;
-		reg = __raw_readl(iomux_base + ofs);
-		reg &= ~bm;
-		reg |= PAD_MA(pad) << bp;
-		__raw_writel(reg, iomux_base + ofs);
-	}
-	/* vol */
-	if (PAD_VOL_VALID(pad)) {
-		bp = PAD_PIN(pad) % 8 * 4 + 2;
-		if (PAD_VOL(pad))
-			__mxs_setl(1 << bp, iomux_base + ofs);
-		else
-			__mxs_clrl(1 << bp, iomux_base + ofs);
-	}
-
-	/* pull */
-	if (PAD_PULL_VALID(pad)) {
-		ofs = cpu_is_mx23() ? 0x400 : 0x600;
-		ofs += PAD_BANK(pad) * 0x10;
-		bp = PAD_PIN(pad);
-		if (PAD_PULL(pad))
-			__mxs_setl(1 << bp, iomux_base + ofs);
-		else
-			__mxs_clrl(1 << bp, iomux_base + ofs);
-	}
-
-	return 0;
-}
-
-int mxs_iomux_setup_multiple_pads(const iomux_cfg_t *pad_list, unsigned count)
-{
-	const iomux_cfg_t *p = pad_list;
-	int i;
-	int ret;
-
-	for (i = 0; i < count; i++) {
-		ret = mxs_iomux_setup_pad(*p);
-		if (ret)
-			return ret;
-		p++;
-	}
-
-	return 0;
-}