1 files changed, 0 insertions, 441 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-pxa/mfp-pxa2xx.c b/ANDROID_3.4.5/arch/arm/mach-pxa/mfp-pxa2xx.c
deleted file mode 100644
index ef0426a1..00000000
--- a/ANDROID_3.4.5/arch/arm/mach-pxa/mfp-pxa2xx.c
+++ /dev/null
@@ -1,441 +0,0 @@
-/*
- *  linux/arch/arm/mach-pxa/mfp-pxa2xx.c
- *
- *  PXA2xx pin mux configuration support
- *
- *  The GPIOs on PXA2xx can be configured as one of many alternate
- *  functions, this is by concept samilar to the MFP configuration
- *  on PXA3xx,  what's more important, the low power pin state and
- *  wakeup detection are also supported by the same framework.
- *
- *  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/gpio.h>
-#include <linux/gpio-pxa.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/syscore_ops.h>
-
-#include <mach/pxa2xx-regs.h>
-#include <mach/mfp-pxa2xx.h>
-
-#include "generic.h"
-
-#define PGSR(x)		__REG2(0x40F00020, (x) << 2)
-#define __GAFR(u, x)	__REG2((u) ? 0x40E00058 : 0x40E00054, (x) << 3)
-#define GAFR_L(x)	__GAFR(0, x)
-#define GAFR_U(x)	__GAFR(1, x)
-
-#define BANK_OFF(n)	(((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
-#define GPLR(x)		__REG2(0x40E00000, BANK_OFF((x) >> 5))
-#define GPDR(x)		__REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x0c)
-#define GPSR(x)		__REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x18)
-#define GPCR(x)		__REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x24)
-
-#define PWER_WE35	(1 << 24)
-
-struct gpio_desc {
-	unsigned	valid		: 1;
-	unsigned	can_wakeup	: 1;
-	unsigned	keypad_gpio	: 1;
-	unsigned	dir_inverted	: 1;
-	unsigned int	mask; /* bit mask in PWER or PKWR */
-	unsigned int	mux_mask; /* bit mask of muxed gpio bits, 0 if no mux */
-	unsigned long	config;
-};
-
-static struct gpio_desc gpio_desc[MFP_PIN_GPIO127 + 1];
-
-static unsigned long gpdr_lpm[4];
-
-static int __mfp_config_gpio(unsigned gpio, unsigned long c)
-{
-	unsigned long gafr, mask = GPIO_bit(gpio);
-	int bank = gpio_to_bank(gpio);
-	int uorl = !!(gpio & 0x10); /* GAFRx_U or GAFRx_L ? */
-	int shft = (gpio & 0xf) << 1;
-	int fn = MFP_AF(c);
-	int is_out = (c & MFP_DIR_OUT) ? 1 : 0;
-
-	if (fn > 3)
-		return -EINVAL;
-
-	/* alternate function and direction at run-time */
-	gafr = (uorl == 0) ? GAFR_L(bank) : GAFR_U(bank);
-	gafr = (gafr & ~(0x3 << shft)) | (fn << shft);
-
-	if (uorl == 0)
-		GAFR_L(bank) = gafr;
-	else
-		GAFR_U(bank) = gafr;
-
-	if (is_out ^ gpio_desc[gpio].dir_inverted)
-		GPDR(gpio) |= mask;
-	else
-		GPDR(gpio) &= ~mask;
-
-	/* alternate function and direction at low power mode */
-	switch (c & MFP_LPM_STATE_MASK) {
-	case MFP_LPM_DRIVE_HIGH:
-		PGSR(bank) |= mask;
-		is_out = 1;
-		break;
-	case MFP_LPM_DRIVE_LOW:
-		PGSR(bank) &= ~mask;
-		is_out = 1;
-		break;
-	case MFP_LPM_INPUT:
-	case MFP_LPM_DEFAULT:
-		break;
-	default:
-		/* warning and fall through, treat as MFP_LPM_DEFAULT */
-		pr_warning("%s: GPIO%d: unsupported low power mode\n",
-				__func__, gpio);
-		break;
-	}
-
-	if (is_out ^ gpio_desc[gpio].dir_inverted)
-		gpdr_lpm[bank] |= mask;
-	else
-		gpdr_lpm[bank] &= ~mask;
-
-	/* give early warning if MFP_LPM_CAN_WAKEUP is set on the
-	 * configurations of those pins not able to wakeup
-	 */
-	if ((c & MFP_LPM_CAN_WAKEUP) && !gpio_desc[gpio].can_wakeup) {
-		pr_warning("%s: GPIO%d unable to wakeup\n",
-				__func__, gpio);
-		return -EINVAL;
-	}
-
-	if ((c & MFP_LPM_CAN_WAKEUP) && is_out) {
-		pr_warning("%s: output GPIO%d unable to wakeup\n",
-				__func__, gpio);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static inline int __mfp_validate(int mfp)
-{
-	int gpio = mfp_to_gpio(mfp);
-
-	if ((mfp > MFP_PIN_GPIO127) || !gpio_desc[gpio].valid) {
-		pr_warning("%s: GPIO%d is invalid pin\n", __func__, gpio);
-		return -1;
-	}
-
-	return gpio;
-}
-
-void pxa2xx_mfp_config(unsigned long *mfp_cfgs, int num)
-{
-	unsigned long flags;
-	unsigned long *c;
-	int i, gpio;
-
-	for (i = 0, c = mfp_cfgs; i < num; i++, c++) {
-
-		gpio = __mfp_validate(MFP_PIN(*c));
-		if (gpio < 0)
-			continue;
-
-		local_irq_save(flags);
-
-		gpio_desc[gpio].config = *c;
-		__mfp_config_gpio(gpio, *c);
-
-		local_irq_restore(flags);
-	}
-}
-
-void pxa2xx_mfp_set_lpm(int mfp, unsigned long lpm)
-{
-	unsigned long flags, c;
-	int gpio;
-
-	gpio = __mfp_validate(mfp);
-	if (gpio < 0)
-		return;
-
-	local_irq_save(flags);
-
-	c = gpio_desc[gpio].config;
-	c = (c & ~MFP_LPM_STATE_MASK) | lpm;
-	__mfp_config_gpio(gpio, c);
-
-	local_irq_restore(flags);
-}
-
-int gpio_set_wake(unsigned int gpio, unsigned int on)
-{
-	struct gpio_desc *d;
-	unsigned long c, mux_taken;
-
-	if (gpio > mfp_to_gpio(MFP_PIN_GPIO127))
-		return -EINVAL;
-
-	d = &gpio_desc[gpio];
-	c = d->config;
-
-	if (!d->valid)
-		return -EINVAL;
-
-	/* Allow keypad GPIOs to wakeup system when
-	 * configured as generic GPIOs.
-	 */
-	if (d->keypad_gpio && (MFP_AF(d->config) == 0) &&
-	    (d->config & MFP_LPM_CAN_WAKEUP)) {
-		if (on)
-			PKWR |= d->mask;
-		else
-			PKWR &= ~d->mask;
-		return 0;
-	}
-
-	mux_taken = (PWER & d->mux_mask) & (~d->mask);
-	if (on && mux_taken)
-		return -EBUSY;
-
-	if (d->can_wakeup && (c & MFP_LPM_CAN_WAKEUP)) {
-		if (on) {
-			PWER = (PWER & ~d->mux_mask) | d->mask;
-
-			if (c & MFP_LPM_EDGE_RISE)
-				PRER |= d->mask;
-			else
-				PRER &= ~d->mask;
-
-			if (c & MFP_LPM_EDGE_FALL)
-				PFER |= d->mask;
-			else
-				PFER &= ~d->mask;
-		} else {
-			PWER &= ~d->mask;
-			PRER &= ~d->mask;
-			PFER &= ~d->mask;
-		}
-	}
-	return 0;
-}
-
-#ifdef CONFIG_PXA25x
-static void __init pxa25x_mfp_init(void)
-{
-	int i;
-
-	/* running before pxa_gpio_probe() */
-#ifdef CONFIG_CPU_PXA26x
-	pxa_last_gpio = 89;
-#else
-	pxa_last_gpio = 84;
-#endif
-	for (i = 0; i <= pxa_last_gpio; i++)
-		gpio_desc[i].valid = 1;
-
-	for (i = 0; i <= 15; i++) {
-		gpio_desc[i].can_wakeup = 1;
-		gpio_desc[i].mask = GPIO_bit(i);
-	}
-
-	/* PXA26x has additional 4 GPIOs (86/87/88/89) which has the
-	 * direction bit inverted in GPDR2. See PXA26x DM 4.1.1.
-	 */
-	for (i = 86; i <= pxa_last_gpio; i++)
-		gpio_desc[i].dir_inverted = 1;
-}
-#else
-static inline void pxa25x_mfp_init(void) {}
-#endif /* CONFIG_PXA25x */
-
-#ifdef CONFIG_PXA27x
-static int pxa27x_pkwr_gpio[] = {
-	13, 16, 17, 34, 36, 37, 38, 39, 90, 91, 93, 94,
-	95, 96, 97, 98, 99, 100, 101, 102
-};
-
-int keypad_set_wake(unsigned int on)
-{
-	unsigned int i, gpio, mask = 0;
-	struct gpio_desc *d;
-
-	for (i = 0; i < ARRAY_SIZE(pxa27x_pkwr_gpio); i++) {
-
-		gpio = pxa27x_pkwr_gpio[i];
-		d = &gpio_desc[gpio];
-
-		/* skip if configured as generic GPIO */
-		if (MFP_AF(d->config) == 0)
-			continue;
-
-		if (d->config & MFP_LPM_CAN_WAKEUP)
-			mask |= gpio_desc[gpio].mask;
-	}
-
-	if (on)
-		PKWR |= mask;
-	else
-		PKWR &= ~mask;
-	return 0;
-}
-
-#define PWER_WEMUX2_GPIO38	(1 << 16)
-#define PWER_WEMUX2_GPIO53	(2 << 16)
-#define PWER_WEMUX2_GPIO40	(3 << 16)
-#define PWER_WEMUX2_GPIO36	(4 << 16)
-#define PWER_WEMUX2_MASK	(7 << 16)
-#define PWER_WEMUX3_GPIO31	(1 << 19)
-#define PWER_WEMUX3_GPIO113	(2 << 19)
-#define PWER_WEMUX3_MASK	(3 << 19)
-
-#define INIT_GPIO_DESC_MUXED(mux, gpio)				\
-do {								\
-	gpio_desc[(gpio)].can_wakeup = 1;			\
-	gpio_desc[(gpio)].mask = PWER_ ## mux ## _GPIO ##gpio;	\
-	gpio_desc[(gpio)].mux_mask = PWER_ ## mux ## _MASK;	\
-} while (0)
-
-static void __init pxa27x_mfp_init(void)
-{
-	int i, gpio;
-
-	pxa_last_gpio = 120;	/* running before pxa_gpio_probe() */
-	for (i = 0; i <= pxa_last_gpio; i++) {
-		/* skip GPIO2, 5, 6, 7, 8, they are not
-		 * valid pins allow configuration
-		 */
-		if (i == 2 || i == 5 || i == 6 || i == 7 || i == 8)
-			continue;
-
-		gpio_desc[i].valid = 1;
-	}
-
-	/* Keypad GPIOs */
-	for (i = 0; i < ARRAY_SIZE(pxa27x_pkwr_gpio); i++) {
-		gpio = pxa27x_pkwr_gpio[i];
-		gpio_desc[gpio].can_wakeup = 1;
-		gpio_desc[gpio].keypad_gpio = 1;
-		gpio_desc[gpio].mask = 1 << i;
-	}
-
-	/* Overwrite GPIO13 as a PWER wakeup source */
-	for (i = 0; i <= 15; i++) {
-		/* skip GPIO2, 5, 6, 7, 8 */
-		if (GPIO_bit(i) & 0x1e4)
-			continue;
-
-		gpio_desc[i].can_wakeup = 1;
-		gpio_desc[i].mask = GPIO_bit(i);
-	}
-
-	gpio_desc[35].can_wakeup = 1;
-	gpio_desc[35].mask = PWER_WE35;
-
-	INIT_GPIO_DESC_MUXED(WEMUX3, 31);
-	INIT_GPIO_DESC_MUXED(WEMUX3, 113);
-	INIT_GPIO_DESC_MUXED(WEMUX2, 38);
-	INIT_GPIO_DESC_MUXED(WEMUX2, 53);
-	INIT_GPIO_DESC_MUXED(WEMUX2, 40);
-	INIT_GPIO_DESC_MUXED(WEMUX2, 36);
-}
-#else
-static inline void pxa27x_mfp_init(void) {}
-#endif /* CONFIG_PXA27x */
-
-#ifdef CONFIG_PM
-static unsigned long saved_gafr[2][4];
-static unsigned long saved_gpdr[4];
-static unsigned long saved_gplr[4];
-static unsigned long saved_pgsr[4];
-
-static int pxa2xx_mfp_suspend(void)
-{
-	int i;
-
-	/* set corresponding PGSR bit of those marked MFP_LPM_KEEP_OUTPUT */
-	for (i = 0; i < pxa_last_gpio; i++) {
-		if ((gpio_desc[i].config & MFP_LPM_KEEP_OUTPUT) &&
-		    (GPDR(i) & GPIO_bit(i))) {
-			if (GPLR(i) & GPIO_bit(i))
-				PGSR(gpio_to_bank(i)) |= GPIO_bit(i);
-			else
-				PGSR(gpio_to_bank(i)) &= ~GPIO_bit(i);
-		}
-	}
-
-	for (i = 0; i <= gpio_to_bank(pxa_last_gpio); i++) {
-		saved_gafr[0][i] = GAFR_L(i);
-		saved_gafr[1][i] = GAFR_U(i);
-		saved_gpdr[i] = GPDR(i * 32);
-		saved_gplr[i] = GPLR(i * 32);
-		saved_pgsr[i] = PGSR(i);
-
-		GPSR(i * 32) = PGSR(i);
-		GPCR(i * 32) = ~PGSR(i);
-	}
-
-	/* set GPDR bits taking into account MFP_LPM_KEEP_OUTPUT */
-	for (i = 0; i < pxa_last_gpio; i++) {
-		if ((gpdr_lpm[gpio_to_bank(i)] & GPIO_bit(i)) ||
-		    ((gpio_desc[i].config & MFP_LPM_KEEP_OUTPUT) &&
-		     (saved_gpdr[gpio_to_bank(i)] & GPIO_bit(i))))
-			GPDR(i) |= GPIO_bit(i);
-		else
-			GPDR(i) &= ~GPIO_bit(i);
-	}
-
-	return 0;
-}
-
-static void pxa2xx_mfp_resume(void)
-{
-	int i;
-
-	for (i = 0; i <= gpio_to_bank(pxa_last_gpio); i++) {
-		GAFR_L(i) = saved_gafr[0][i];
-		GAFR_U(i) = saved_gafr[1][i];
-		GPSR(i * 32) = saved_gplr[i];
-		GPCR(i * 32) = ~saved_gplr[i];
-		GPDR(i * 32) = saved_gpdr[i];
-		PGSR(i) = saved_pgsr[i];
-	}
-	PSSR = PSSR_RDH | PSSR_PH;
-}
-#else
-#define pxa2xx_mfp_suspend	NULL
-#define pxa2xx_mfp_resume	NULL
-#endif
-
-struct syscore_ops pxa2xx_mfp_syscore_ops = {
-	.suspend	= pxa2xx_mfp_suspend,
-	.resume		= pxa2xx_mfp_resume,
-};
-
-static int __init pxa2xx_mfp_init(void)
-{
-	int i;
-
-	if (!cpu_is_pxa2xx())
-		return 0;
-
-	if (cpu_is_pxa25x())
-		pxa25x_mfp_init();
-
-	if (cpu_is_pxa27x())
-		pxa27x_mfp_init();
-
-	/* clear RDH bit to enable GPIO receivers after reset/sleep exit */
-	PSSR = PSSR_RDH;
-
-	/* initialize gafr_run[], pgsr_lpm[] from existing values */
-	for (i = 0; i <= gpio_to_bank(pxa_last_gpio); i++)
-		gpdr_lpm[i] = GPDR(i * 32);
-
-	return 0;
-}
-postcore_initcall(pxa2xx_mfp_init);