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-rw-r--r--arch/arm/mach-mxc91231/iomux.c177
1 files changed, 0 insertions, 177 deletions
diff --git a/arch/arm/mach-mxc91231/iomux.c b/arch/arm/mach-mxc91231/iomux.c
deleted file mode 100644
index 66fc41cbf2c..00000000000
--- a/arch/arm/mach-mxc91231/iomux.c
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * Copyright 2004-2006 Freescale Semiconductor, Inc. All Rights Reserved.
- * Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de>
- * Copyright (C) 2009 by Valentin Longchamp <valentin.longchamp@epfl.ch>
- *
- * 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/module.h>
-#include <linux/spinlock.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <mach/hardware.h>
-#include <mach/gpio.h>
-#include <mach/iomux-mxc91231.h>
-
-/*
- * IOMUX register (base) addresses
- */
-#define IOMUX_AP_BASE MXC91231_IO_ADDRESS(MXC91231_IOMUX_AP_BASE_ADDR)
-#define IOMUX_COM_BASE MXC91231_IO_ADDRESS(MXC91231_IOMUX_COM_BASE_ADDR)
-#define IOMUXSW_AP_MUX_CTL (IOMUX_AP_BASE + 0x000)
-#define IOMUXSW_SP_MUX_CTL (IOMUX_COM_BASE + 0x000)
-#define IOMUXSW_PAD_CTL (IOMUX_COM_BASE + 0x200)
-
-#define IOMUXINT_OBS1 (IOMUX_AP_BASE + 0x600)
-#define IOMUXINT_OBS2 (IOMUX_AP_BASE + 0x004)
-
-static DEFINE_SPINLOCK(gpio_mux_lock);
-
-#define NB_PORTS ((PIN_MAX + 32) / 32)
-#define PIN_GLOBAL_NUM(pin) \
- (((pin & MUX_SIDE_MASK) >> MUX_SIDE_SHIFT)*PIN_AP_MAX + \
- ((pin & MUX_REG_MASK) >> MUX_REG_SHIFT)*4 + \
- ((pin & MUX_FIELD_MASK) >> MUX_FIELD_SHIFT))
-
-unsigned long mxc_pin_alloc_map[NB_PORTS * 32 / BITS_PER_LONG];
-/*
- * set the mode for a IOMUX pin.
- */
-int mxc_iomux_mode(unsigned int pin_mode)
-{
- u32 side, field, l, mode, ret = 0;
- void __iomem *reg;
-
- side = (pin_mode & MUX_SIDE_MASK) >> MUX_SIDE_SHIFT;
- switch (side) {
- case MUX_SIDE_AP:
- reg = IOMUXSW_AP_MUX_CTL;
- break;
- case MUX_SIDE_SP:
- reg = IOMUXSW_SP_MUX_CTL;
- break;
- default:
- return -EINVAL;
- }
- reg += ((pin_mode & MUX_REG_MASK) >> MUX_REG_SHIFT) * 4;
- field = (pin_mode & MUX_FIELD_MASK) >> MUX_FIELD_SHIFT;
- mode = (pin_mode & MUX_MODE_MASK) >> MUX_MODE_SHIFT;
-
- spin_lock(&gpio_mux_lock);
-
- l = __raw_readl(reg);
- l &= ~(0xff << (field * 8));
- l |= mode << (field * 8);
- __raw_writel(l, reg);
-
- spin_unlock(&gpio_mux_lock);
-
- return ret;
-}
-EXPORT_SYMBOL(mxc_iomux_mode);
-
-/*
- * This function configures the pad value for a IOMUX pin.
- */
-void mxc_iomux_set_pad(enum iomux_pins pin, u32 config)
-{
- u32 padgrp, field, l;
- void __iomem *reg;
-
- padgrp = (pin & MUX_PADGRP_MASK) >> MUX_PADGRP_SHIFT;
- reg = IOMUXSW_PAD_CTL + (pin + 2) / 3 * 4;
- field = (pin + 2) % 3;
-
- pr_debug("%s: reg offset = 0x%x, field = %d\n",
- __func__, (pin + 2) / 3, field);
-
- spin_lock(&gpio_mux_lock);
-
- l = __raw_readl(reg);
- l &= ~(0x1ff << (field * 10));
- l |= config << (field * 10);
- __raw_writel(l, reg);
-
- spin_unlock(&gpio_mux_lock);
-}
-EXPORT_SYMBOL(mxc_iomux_set_pad);
-
-/*
- * allocs a single pin:
- * - reserves the pin so that it is not claimed by another driver
- * - setups the iomux according to the configuration
- */
-int mxc_iomux_alloc_pin(unsigned int pin_mode, const char *label)
-{
- unsigned pad = PIN_GLOBAL_NUM(pin_mode);
- if (pad >= (PIN_MAX + 1)) {
- printk(KERN_ERR "mxc_iomux: Attempt to request nonexistant pin %u for \"%s\"\n",
- pad, label ? label : "?");
- return -EINVAL;
- }
-
- if (test_and_set_bit(pad, mxc_pin_alloc_map)) {
- printk(KERN_ERR "mxc_iomux: pin %u already used. Allocation for \"%s\" failed\n",
- pad, label ? label : "?");
- return -EBUSY;
- }
- mxc_iomux_mode(pin_mode);
-
- return 0;
-}
-EXPORT_SYMBOL(mxc_iomux_alloc_pin);
-
-int mxc_iomux_setup_multiple_pins(const unsigned int *pin_list, unsigned count,
- const char *label)
-{
- const unsigned int *p = pin_list;
- int i;
- int ret = -EINVAL;
-
- for (i = 0; i < count; i++) {
- ret = mxc_iomux_alloc_pin(*p, label);
- if (ret)
- goto setup_error;
- p++;
- }
- return 0;
-
-setup_error:
- mxc_iomux_release_multiple_pins(pin_list, i);
- return ret;
-}
-EXPORT_SYMBOL(mxc_iomux_setup_multiple_pins);
-
-void mxc_iomux_release_pin(unsigned int pin_mode)
-{
- unsigned pad = PIN_GLOBAL_NUM(pin_mode);
-
- if (pad < (PIN_MAX + 1))
- clear_bit(pad, mxc_pin_alloc_map);
-}
-EXPORT_SYMBOL(mxc_iomux_release_pin);
-
-void mxc_iomux_release_multiple_pins(const unsigned int *pin_list, int count)
-{
- const unsigned int *p = pin_list;
- int i;
-
- for (i = 0; i < count; i++) {
- mxc_iomux_release_pin(*p);
- p++;
- }
-}
-EXPORT_SYMBOL(mxc_iomux_release_multiple_pins);