[ARM] pxa: rename mfp.c to mfp-pxa3xx.c to indicate it's pxa3xx specific

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 0 insertions, 255 deletions

diff --git a/arch/arm/mach-pxa/mfp.c b/arch/arm/mach-pxa/mfp.c
deleted file mode 100644
index f5809ad..0000000
--- a/arch/arm/mach-pxa/mfp.c
+++ /dev/null
@@ -1,255 +0,0 @@
-/*
- * linux/arch/arm/mach-pxa/mfp.c
- *
- * PXA3xx Multi-Function Pin Support
- *
- * Copyright (C) 2007 Marvell Internation Ltd.
- *
- * 2007-08-21: eric miao <eric.miao@marvell.com>
- *             initial version
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/sysdev.h>
-
-#include <asm/hardware.h>
-#include <asm/arch/mfp.h>
-#include <asm/arch/mfp-pxa3xx.h>
-#include <asm/arch/pxa3xx-regs.h>
-
-/* mfp_spin_lock is used to ensure that MFP register configuration
- * (most likely a read-modify-write operation) is atomic, and that
- * mfp_table[] is consistent
- */
-static DEFINE_SPINLOCK(mfp_spin_lock);
-
-static void __iomem *mfpr_mmio_base = (void __iomem *)&__REG(MFPR_BASE);
-
-struct pxa3xx_mfp_pin {
-	unsigned long	config;		/* -1 for not configured */
-	unsigned long	mfpr_off;	/* MFPRxx Register offset */
-	unsigned long	mfpr_run;	/* Run-Mode Register Value */
-	unsigned long	mfpr_lpm;	/* Low Power Mode Register Value */
-};
-
-static struct pxa3xx_mfp_pin mfp_table[MFP_PIN_MAX];
-
-/* mapping of MFP_LPM_* definitions to MFPR_LPM_* register bits */
-const static unsigned long mfpr_lpm[] = {
-	MFPR_LPM_INPUT,
-	MFPR_LPM_DRIVE_LOW,
-	MFPR_LPM_DRIVE_HIGH,
-	MFPR_LPM_PULL_LOW,
-	MFPR_LPM_PULL_HIGH,
-	MFPR_LPM_FLOAT,
-};
-
-/* mapping of MFP_PULL_* definitions to MFPR_PULL_* register bits */
-const static unsigned long mfpr_pull[] = {
-	MFPR_PULL_NONE,
-	MFPR_PULL_LOW,
-	MFPR_PULL_HIGH,
-	MFPR_PULL_BOTH,
-};
-
-/* mapping of MFP_LPM_EDGE_* definitions to MFPR_EDGE_* register bits */
-const static unsigned long mfpr_edge[] = {
-	MFPR_EDGE_NONE,
-	MFPR_EDGE_RISE,
-	MFPR_EDGE_FALL,
-	MFPR_EDGE_BOTH,
-};
-
-#define mfpr_readl(off)			\
-	__raw_readl(mfpr_mmio_base + (off))
-
-#define mfpr_writel(off, val)		\
-	__raw_writel(val, mfpr_mmio_base + (off))
-
-#define mfp_configured(p)	((p)->config != -1)
-
-/*
- * perform a read-back of any MFPR register to make sure the
- * previous writings are finished
- */
-#define mfpr_sync()	(void)__raw_readl(mfpr_mmio_base + 0)
-
-static inline void __mfp_config_run(struct pxa3xx_mfp_pin *p)
-{
-	if (mfp_configured(p))
-		mfpr_writel(p->mfpr_off, p->mfpr_run);
-}
-
-static inline void __mfp_config_lpm(struct pxa3xx_mfp_pin *p)
-{
-	if (mfp_configured(p)) {
-		unsigned long mfpr_clr = (p->mfpr_run & ~MFPR_EDGE_BOTH) | MFPR_EDGE_CLEAR;
-		if (mfpr_clr != p->mfpr_run)
-			mfpr_writel(p->mfpr_off, mfpr_clr);
-		if (p->mfpr_lpm != mfpr_clr)
-			mfpr_writel(p->mfpr_off, p->mfpr_lpm);
-	}
-}
-
-void pxa3xx_mfp_config(unsigned long *mfp_cfgs, int num)
-{
-	unsigned long flags;
-	int i;
-
-	spin_lock_irqsave(&mfp_spin_lock, flags);
-
-	for (i = 0; i < num; i++, mfp_cfgs++) {
-		unsigned long tmp, c = *mfp_cfgs;
-		struct pxa3xx_mfp_pin *p;
-		int pin, af, drv, lpm, edge, pull;
-
-		pin = MFP_PIN(c);
-		BUG_ON(pin >= MFP_PIN_MAX);
-		p = &mfp_table[pin];
-
-		af  = MFP_AF(c);
-		drv = MFP_DS(c);
-		lpm = MFP_LPM_STATE(c);
-		edge = MFP_LPM_EDGE(c);
-		pull = MFP_PULL(c);
-
-		/* run-mode pull settings will conflict with MFPR bits of
-		 * low power mode state,  calculate mfpr_run and mfpr_lpm
-		 * individually if pull != MFP_PULL_NONE
-		 */
-		tmp = MFPR_AF_SEL(af) | MFPR_DRIVE(drv);
-
-		if (likely(pull == MFP_PULL_NONE)) {
-			p->mfpr_run = tmp | mfpr_lpm[lpm] | mfpr_edge[edge];
-			p->mfpr_lpm = p->mfpr_run;
-		} else {
-			p->mfpr_lpm = tmp | mfpr_lpm[lpm] | mfpr_edge[edge];
-			p->mfpr_run = tmp | mfpr_pull[pull];
-		}
-
-		p->config = c; __mfp_config_run(p);
-	}
-
-	mfpr_sync();
-	spin_unlock_irqrestore(&mfp_spin_lock, flags);
-}
-
-unsigned long pxa3xx_mfp_read(int mfp)
-{
-	unsigned long val, flags;
-
-	BUG_ON(mfp >= MFP_PIN_MAX);
-
-	spin_lock_irqsave(&mfp_spin_lock, flags);
-	val = mfpr_readl(mfp_table[mfp].mfpr_off);
-	spin_unlock_irqrestore(&mfp_spin_lock, flags);
-
-	return val;
-}
-
-void pxa3xx_mfp_write(int mfp, unsigned long val)
-{
-	unsigned long flags;
-
-	BUG_ON(mfp >= MFP_PIN_MAX);
-
-	spin_lock_irqsave(&mfp_spin_lock, flags);
-	mfpr_writel(mfp_table[mfp].mfpr_off, val);
-	mfpr_sync();
-	spin_unlock_irqrestore(&mfp_spin_lock, flags);
-}
-
-void __init pxa3xx_mfp_init_addr(struct pxa3xx_mfp_addr_map *map)
-{
-	struct pxa3xx_mfp_addr_map *p;
-	unsigned long offset, flags;
-	int i;
-
-	spin_lock_irqsave(&mfp_spin_lock, flags);
-
-	for (p = map; p->start != MFP_PIN_INVALID; p++) {
-		offset = p->offset;
-		i = p->start;
-
-		do {
-			mfp_table[i].mfpr_off = offset;
-			mfp_table[i].mfpr_run = 0;
-			mfp_table[i].mfpr_lpm = 0;
-			offset += 4; i++;
-		} while ((i <= p->end) && (p->end != -1));
-	}
-
-	spin_unlock_irqrestore(&mfp_spin_lock, flags);
-}
-
-void __init pxa3xx_init_mfp(void)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(mfp_table); i++)
-		mfp_table[i].config = -1;
-}
-
-#ifdef CONFIG_PM
-/*
- * Configure the MFPs appropriately for suspend/resume.
- * FIXME: this should probably depend on which system state we're
- * entering - for instance, we might not want to place MFP pins in
- * a pull-down mode if they're an active low chip select, and we're
- * just entering standby.
- */
-static int pxa3xx_mfp_suspend(struct sys_device *d, pm_message_t state)
-{
-	int pin;
-
-	for (pin = 0; pin < ARRAY_SIZE(mfp_table); pin++) {
-		struct pxa3xx_mfp_pin *p = &mfp_table[pin];
-		__mfp_config_lpm(p);
-	}
-	return 0;
-}
-
-static int pxa3xx_mfp_resume(struct sys_device *d)
-{
-	int pin;
-
-	for (pin = 0; pin < ARRAY_SIZE(mfp_table); pin++) {
-		struct pxa3xx_mfp_pin *p = &mfp_table[pin];
-		__mfp_config_run(p);
-	}
-
-	/* clear RDH bit when MFP settings are restored
-	 *
-	 * NOTE: the last 3 bits DxS are write-1-to-clear so carefully
-	 * preserve them here in case they will be referenced later
-	 */
-	ASCR &= ~(ASCR_RDH | ASCR_D1S | ASCR_D2S | ASCR_D3S);
-
-	return 0;
-}
-
-static struct sysdev_class mfp_sysclass = {
-	.name		= "mfp",
-	.suspend	= pxa3xx_mfp_suspend,
-	.resume 	= pxa3xx_mfp_resume,
-};
-
-static struct sys_device mfp_device = {
-	.id		= 0,
-	.cls		= &mfp_sysclass,
-};
-
-static int __init mfp_init_devicefs(void)
-{
-	sysdev_class_register(&mfp_sysclass);
-	return sysdev_register(&mfp_device);
-}
-device_initcall(mfp_init_devicefs);
-#endif