X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Fblackfin%2Fcpu%2Fgpio.c;h=f9aff4d894ae95f2d69239e60127485cc5b1a1cc;hb=9868b1426315fc5ac4883b5267d5337b2dfcbd95;hp=488ca11bb0657055e2ad53f037a5c1907f641b91;hpb=d6f324d03d7829a1da1dee8b60f91b173a3976f0;p=u-boot

diff --git a/arch/blackfin/cpu/gpio.c b/arch/blackfin/cpu/gpio.c
index 488ca11bb0..f9aff4d894 100644
--- a/arch/blackfin/cpu/gpio.c
+++ b/arch/blackfin/cpu/gpio.c
@@ -1,5 +1,6 @@
 /*
- * GPIO Abstraction Layer
+ * ADI GPIO1 Abstraction Layer
+ * Support BF50x, BF51x, BF52x, BF53x and BF561 only.
  *
  * Copyright 2006-2010 Analog Devices Inc.
  *
@@ -45,7 +46,7 @@ static struct gpio_port_t * const gpio_array[] = {
 #if defined(BF533_FAMILY)
 	(struct gpio_port_t *) FIO_FLAG_D,
 #elif defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x) \
-	|| defined(BF538_FAMILY)
+	|| defined(BF538_FAMILY) || defined(CONFIG_BF50x)
 	(struct gpio_port_t *) PORTFIO,
 # if !defined(BF538_FAMILY)
 	(struct gpio_port_t *) PORTGIO,
@@ -55,23 +56,13 @@ static struct gpio_port_t * const gpio_array[] = {
 	(struct gpio_port_t *) FIO0_FLAG_D,
 	(struct gpio_port_t *) FIO1_FLAG_D,
 	(struct gpio_port_t *) FIO2_FLAG_D,
-#elif defined(CONFIG_BF54x)
-	(struct gpio_port_t *)PORTA_FER,
-	(struct gpio_port_t *)PORTB_FER,
-	(struct gpio_port_t *)PORTC_FER,
-	(struct gpio_port_t *)PORTD_FER,
-	(struct gpio_port_t *)PORTE_FER,
-	(struct gpio_port_t *)PORTF_FER,
-	(struct gpio_port_t *)PORTG_FER,
-	(struct gpio_port_t *)PORTH_FER,
-	(struct gpio_port_t *)PORTI_FER,
-	(struct gpio_port_t *)PORTJ_FER,
 #else
 # error no gpio arrays defined
 #endif
 };
 
-#if defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x)
+#if defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x) || \
+    defined(CONFIG_BF50x)
 static unsigned short * const port_fer[] = {
 	(unsigned short *) PORTF_FER,
 	(unsigned short *) PORTG_FER,
@@ -165,12 +156,6 @@ DECLARE_RESERVED_MAP(peri, gpio_bank(MAX_RESOURCES));
 
 inline int check_gpio(unsigned gpio)
 {
-#if defined(CONFIG_BF54x)
-	if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15
-	    || gpio == GPIO_PH14 || gpio == GPIO_PH15
-	    || gpio == GPIO_PJ14 || gpio == GPIO_PJ15)
-		return -EINVAL;
-#endif
 	if (gpio >= MAX_BLACKFIN_GPIOS)
 		return -EINVAL;
 	return 0;
@@ -202,18 +187,13 @@ static void port_setup(unsigned gpio, unsigned short usage)
 	if (check_gpio(gpio))
 		return;
 
-#if defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x)
+#if defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x) || \
+    defined(CONFIG_BF50x)
 	if (usage == GPIO_USAGE)
 		*port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio);
 	else
 		*port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
 	SSYNC();
-#elif defined(CONFIG_BF54x)
-	if (usage == GPIO_USAGE)
-		gpio_array[gpio_bank(gpio)]->port_fer &= ~gpio_bit(gpio);
-	else
-		gpio_array[gpio_bank(gpio)]->port_fer |= gpio_bit(gpio);
-	SSYNC();
 #endif
 }
 
@@ -267,7 +247,7 @@ static struct {
 
 static void portmux_setup(unsigned short per)
 {
-	u16 y, offset, muxreg;
+	u16 y, offset, muxreg, mask;
 	u16 function = P_FUNCT2MUX(per);
 
 	for (y = 0; y < ARRAY_SIZE(port_mux_lut); y++) {
@@ -278,40 +258,17 @@ static void portmux_setup(unsigned short per)
 			offset = port_mux_lut[y].offset;
 			muxreg = bfin_read_PORT_MUX();
 
-			if (offset != 1)
-				muxreg &= ~(1 << offset);
+			if (offset == 1)
+				mask = 3;
 			else
-				muxreg &= ~(3 << 1);
+				mask = 1;
 
-			muxreg |= (function << offset);
+			muxreg &= ~(mask << offset);
+			muxreg |= ((function & mask) << offset);
 			bfin_write_PORT_MUX(muxreg);
 		}
 	}
 }
-#elif defined(CONFIG_BF54x)
-inline void portmux_setup(unsigned short per)
-{
-	u32 pmux;
-	u16 ident = P_IDENT(per);
-	u16 function = P_FUNCT2MUX(per);
-
-	pmux = gpio_array[gpio_bank(ident)]->port_mux;
-
-	pmux &= ~(0x3 << (2 * gpio_sub_n(ident)));
-	pmux |= (function & 0x3) << (2 * gpio_sub_n(ident));
-
-	gpio_array[gpio_bank(ident)]->port_mux = pmux;
-}
-
-inline u16 get_portmux(unsigned short per)
-{
-	u32 pmux;
-	u16 ident = P_IDENT(per);
-
-	pmux = gpio_array[gpio_bank(ident)]->port_mux;
-
-	return (pmux >> (2 * gpio_sub_n(ident)) & 0x3);
-}
 #elif defined(CONFIG_BF52x) || defined(CONFIG_BF51x)
 inline void portmux_setup(unsigned short per)
 {
@@ -328,7 +285,6 @@ inline void portmux_setup(unsigned short per)
 # define portmux_setup(...)  do { } while (0)
 #endif
 
-#ifndef CONFIG_BF54x
 /***********************************************************
 *
 * FUNCTIONS: Blackfin General Purpose Ports Access Functions
@@ -475,15 +431,6 @@ GET_GPIO_P(both)
 GET_GPIO_P(maska)
 GET_GPIO_P(maskb)
 
-#else /* CONFIG_BF54x */
-
-unsigned short get_gpio_dir(unsigned gpio)
-{
-	return (0x01 & (gpio_array[gpio_bank(gpio)]->dir_clear >> gpio_sub_n(gpio)));
-}
-
-#endif /* CONFIG_BF54x */
-
 /***********************************************************
 *
 * FUNCTIONS:	Blackfin Peripheral Resource Allocation
@@ -532,11 +479,7 @@ int peripheral_request(unsigned short per, const char *label)
 		 * be requested and used by several drivers
 		 */
 
-#ifdef CONFIG_BF54x
-		if (!((per & P_MAYSHARE) && get_portmux(per) == P_FUNCT2MUX(per))) {
-#else
 		if (!(per & P_MAYSHARE)) {
-#endif
 			/*
 			 * Allow that the identical pin function can
 			 * be requested from the same driver twice
@@ -625,7 +568,7 @@ void peripheral_free_list(const unsigned short per[])
 * MODIFICATION HISTORY :
 **************************************************************/
 
-int bfin_gpio_request(unsigned gpio, const char *label)
+int gpio_request(unsigned gpio, const char *label)
 {
 	if (check_gpio(gpio) < 0)
 		return -EINVAL;
@@ -649,11 +592,9 @@ int bfin_gpio_request(unsigned gpio, const char *label)
 		       gpio, get_label(gpio));
 		return -EBUSY;
 	}
-#ifndef CONFIG_BF54x
 	else {	/* Reset POLAR setting when acquiring a gpio for the first time */
 		set_gpio_polar(gpio, 0);
 	}
-#endif
 
 	reserve(gpio, gpio);
 	set_label(gpio, label);
@@ -663,25 +604,27 @@ int bfin_gpio_request(unsigned gpio, const char *label)
 	return 0;
 }
 
-void bfin_gpio_free(unsigned gpio)
+int gpio_free(unsigned gpio)
 {
 	if (check_gpio(gpio) < 0)
-		return;
+		return -1;
 
 	if (unlikely(!is_reserved(gpio, gpio, 0))) {
 		gpio_error(gpio);
-		return;
+		return -1;
 	}
 
 	unreserve(gpio, gpio);
 
 	set_label(gpio, "free");
+
+	return 0;
 }
 
-#ifdef BFIN_SPECIAL_GPIO_BANKS
+#ifdef ADI_SPECIAL_GPIO_BANKS
 DECLARE_RESERVED_MAP(special_gpio, gpio_bank(MAX_RESOURCES));
 
-int bfin_special_gpio_request(unsigned gpio, const char *label)
+int special_gpio_request(unsigned gpio, const char *label)
 {
 	/*
 	 * Allow that the identical GPIO can
@@ -713,30 +656,26 @@ int bfin_special_gpio_request(unsigned gpio, const char *label)
 	return 0;
 }
 
-void bfin_special_gpio_free(unsigned gpio)
+void special_gpio_free(unsigned gpio)
 {
 	if (unlikely(!is_reserved(special_gpio, gpio, 0))) {
 		gpio_error(gpio);
 		return;
 	}
 
-	reserve(special_gpio, gpio);
-	reserve(peri, gpio);
+	unreserve(special_gpio, gpio);
+	unreserve(peri, gpio);
 	set_label(gpio, "free");
 }
 #endif
 
-static inline void __bfin_gpio_direction_input(unsigned gpio)
+static inline void __gpio_direction_input(unsigned gpio)
 {
-#ifdef CONFIG_BF54x
-	gpio_array[gpio_bank(gpio)]->dir_clear = gpio_bit(gpio);
-#else
 	gpio_array[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio);
-#endif
 	gpio_array[gpio_bank(gpio)]->inen |= gpio_bit(gpio);
 }
 
-int bfin_gpio_direction_input(unsigned gpio)
+int gpio_direction_input(unsigned gpio)
 {
 	unsigned long flags;
 
@@ -746,31 +685,24 @@ int bfin_gpio_direction_input(unsigned gpio)
 	}
 
 	local_irq_save(flags);
-	__bfin_gpio_direction_input(gpio);
+	__gpio_direction_input(gpio);
 	AWA_DUMMY_READ(inen);
 	local_irq_restore(flags);
 
 	return 0;
 }
 
-void bfin_gpio_toggle_value(unsigned gpio)
-{
-#ifdef CONFIG_BF54x
-	gpio_set_value(gpio, !gpio_get_value(gpio));
-#else
-	gpio_array[gpio_bank(gpio)]->toggle = gpio_bit(gpio);
-#endif
-}
-
-void bfin_gpio_set_value(unsigned gpio, int arg)
+int gpio_set_value(unsigned gpio, int arg)
 {
 	if (arg)
 		gpio_array[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
 	else
 		gpio_array[gpio_bank(gpio)]->data_clear = gpio_bit(gpio);
+
+	return 0;
 }
 
-int bfin_gpio_direction_output(unsigned gpio, int value)
+int gpio_direction_output(unsigned gpio, int value)
 {
 	unsigned long flags;
 
@@ -783,11 +715,7 @@ int bfin_gpio_direction_output(unsigned gpio, int value)
 
 	gpio_array[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio);
 	gpio_set_value(gpio, value);
-#ifdef CONFIG_BF54x
-	gpio_array[gpio_bank(gpio)]->dir_set = gpio_bit(gpio);
-#else
 	gpio_array[gpio_bank(gpio)]->dir |= gpio_bit(gpio);
-#endif
 
 	AWA_DUMMY_READ(dir);
 	local_irq_restore(flags);
@@ -795,11 +723,8 @@ int bfin_gpio_direction_output(unsigned gpio, int value)
 	return 0;
 }
 
-int bfin_gpio_get_value(unsigned gpio)
+int gpio_get_value(unsigned gpio)
 {
-#ifdef CONFIG_BF54x
-	return (1 & (gpio_array[gpio_bank(gpio)]->data >> gpio_sub_n(gpio)));
-#else
 	unsigned long flags;
 
 	if (unlikely(get_gpio_edge(gpio))) {
@@ -812,7 +737,6 @@ int bfin_gpio_get_value(unsigned gpio)
 		return ret;
 	} else
 		return get_gpio_data(gpio);
-#endif
 }
 
 /* If we are booting from SPI and our board lacks a strong enough pull up,
@@ -834,8 +758,7 @@ void bfin_reset_boot_spi_cs(unsigned short pin)
 	udelay(1);
 }
 
-#ifdef CONFIG_BFIN_GPIO_TRACK
-void bfin_gpio_labels(void)
+void gpio_labels(void)
 {
 	int c, gpio;
 
@@ -851,4 +774,3 @@ void bfin_gpio_labels(void)
 			continue;
 	}
 }
-#endif