keymile: Fix Coding style issues for keymile boards.

- use I/O accessors
  -> For accessing the FPGA therefore a struct km_bec_fpga
     is introduced.
- no longer externs needed
- to defines, that only select functions, don;t assign a
  numeric value
- Codingstyle changes to prevent checkpatch errors/warnings

Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
cc: Kim Phillips <kim.phillips@freescale.com>
cc: Holger Brunck <holger.brunck@keymile.com>
cc: Wolfgang Denk <wd@denx.de>
cc: Detlev Zundel <dzu@denx.de>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>

1 files changed, 164 insertions, 183 deletions

diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c
index 86be9c2..ea32028 100644
--- a/board/keymile/common/common.c
+++ b/board/keymile/common/common.c
@@ -39,9 +39,7 @@
 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 #include <i2c.h>
 
-extern int i2c_soft_read_pin (void);
-
-int ivm_calc_crc (unsigned char *buf, int len)
+int ivm_calc_crc(unsigned char *buf, int len)
 {
 	const unsigned short crc_tab[16] = {
 		0x0000, 0xCC01, 0xD801, 0x1400,
@@ -71,20 +69,20 @@ int ivm_calc_crc (unsigned char *buf, int len)
 	return crc;
 }
 
-static int  ivm_set_value (char *name, char *value)
+static int ivm_set_value(char *name, char *value)
 {
 	char tempbuf[256];
 
 	if (value != NULL) {
-		sprintf (tempbuf, "%s=%s", name, value);
-		return set_local_var (tempbuf, 0);
+		sprintf(tempbuf, "%s=%s", name, value);
+		return set_local_var(tempbuf, 0);
 	} else {
-		unset_local_var (name);
+		unset_local_var(name);
 	}
 	return 0;
 }
 
-static int ivm_get_value (unsigned char *buf, int len, char *name, int off,
+static int ivm_get_value(unsigned char *buf, int len, char *name, int off,
 				int check)
 {
 	unsigned short	val;
@@ -92,21 +90,21 @@ static int ivm_get_value (unsigned char *buf, int len, char *name, int off,
 
 	if ((buf[off + 0] != buf[off + 2]) &&
 	    (buf[off + 2] != buf[off + 4])) {
-		printf ("%s Error corrupted %s\n", __FUNCTION__, name);
+		printf("%s Error corrupted %s\n", __func__, name);
 		val = -1;
 	} else {
 		val = buf[off + 0] + (buf[off + 1] << 8);
 		if ((val == 0) && (check == 1))
 			val = -1;
 	}
-	sprintf ((char *)valbuf, "%x", val);
-	ivm_set_value (name, (char *)valbuf);
+	sprintf((char *)valbuf, "%x", val);
+	ivm_set_value(name, (char *)valbuf);
 	return val;
 }
 
-#define INVENTORYBLOCKSIZE	0x100
-#define INVENTORYDATAADDRESS	0x21
-#define INVENTORYDATASIZE	(INVENTORYBLOCKSIZE - INVENTORYDATAADDRESS - 3)
+#define INV_BLOCKSIZE		0x100
+#define INV_DATAADDRESS		0x21
+#define INVENTORYDATASIZE	(INV_BLOCKSIZE - INV_DATAADDRESS - 3)
 
 #define IVM_POS_SHORT_TEXT		0
 #define IVM_POS_MANU_ID			1
@@ -121,19 +119,19 @@ static int ivm_get_value (unsigned char *buf, int len, char *name, int off,
 #define IVM_POS_HISTORY			10
 #define IVM_POS_SYMBOL_ONLY		11
 
-static char convert_char (char c)
+static char convert_char(char c)
 {
 	return (c < ' ' || c > '~') ? '.' : c;
 }
 
-static int ivm_findinventorystring (int type,
+static int ivm_findinventorystring(int type,
 					unsigned char* const string,
 					unsigned long maxlen,
 					unsigned char *buf)
 {
 	int xcode = 0;
 	unsigned long cr = 0;
-	unsigned long addr = INVENTORYDATAADDRESS;
+	unsigned long addr = INV_DATAADDRESS;
 	unsigned long size = 0;
 	unsigned long nr = type;
 	int stop = 0; 	/* stop on semicolon */
@@ -157,8 +155,10 @@ static int ivm_findinventorystring (int type,
 		addr++;
 	}
 
-	/* the expected number of CR was found until the end of the IVM
-	 *  content --> fill string */
+	/*
+	 * the expected number of CR was found until the end of the IVM
+	 *  content --> fill string
+	 */
 	if (addr < INVENTORYDATASIZE) {
 		/* Copy the IVM string in the corresponding string */
 		for (; (buf[addr] != '\r')			&&
@@ -170,64 +170,62 @@ static int ivm_findinventorystring (int type,
 						convert_char (buf[addr]));
 		}
 
-		/* copy phase is done: check if everything is ok. If not,
+		/*
+		 * copy phase is done: check if everything is ok. If not,
 		 * the inventory data is most probably corrupted: tell
-		 * the world there is a problem! */
+		 * the world there is a problem!
+		 */
 		if (addr == INVENTORYDATASIZE) {
 			xcode = -1;
-			printf ("Error end of string not found\n");
+			printf("Error end of string not found\n");
 		} else if ((size >= (maxlen - 1)) &&
 			   (buf[addr] != '\r')) {
 			xcode = -1;
-			printf ("string too long till next CR\n");
+			printf("string too long till next CR\n");
 		}
 	} else {
-		/* some CR are missing...
-		 * the inventory data is most probably corrupted */
+		/*
+		 * some CR are missing...
+		 * the inventory data is most probably corrupted
+		 */
 		xcode = -1;
-		printf ("not enough cr found\n");
+		printf("not enough cr found\n");
 	}
 	return xcode;
 }
 
 #define GET_STRING(name, which, len) \
-	if (ivm_findinventorystring (which, valbuf, len, buf) == 0) { \
-		ivm_set_value (name, (char *)valbuf); \
+	if (ivm_findinventorystring(which, valbuf, len, buf) == 0) { \
+		ivm_set_value(name, (char *)valbuf); \
 	}
 
-static int ivm_check_crc (unsigned char *buf, int block)
+static int ivm_check_crc(unsigned char *buf, int block)
 {
 	unsigned long	crc;
 	unsigned long	crceeprom;
 
-	crc = ivm_calc_crc (buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 2);
+	crc = ivm_calc_crc(buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 2);
 	crceeprom = (buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 1] + \
 			buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 2] * 256);
 	if (crc != crceeprom) {
 		if (block == 0)
-			printf ("Error CRC Block: %d EEprom: calculated: \
+			printf("Error CRC Block: %d EEprom: calculated: \
 			%lx EEprom: %lx\n", block, crc, crceeprom);
 		return -1;
 	}
 	return 0;
 }
 
-static int ivm_analyze_block2 (unsigned char *buf, int len)
+static int ivm_analyze_block2(unsigned char *buf, int len)
 {
 	unsigned char	valbuf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN];
 	unsigned long	count;
 
 	/* IVM_MacAddress */
-	sprintf ((char *)valbuf, "%02X:%02X:%02X:%02X:%02X:%02X",
-			buf[1],
-			buf[2],
-			buf[3],
-			buf[4],
-			buf[5],
-			buf[6]);
-	ivm_set_value ("IVM_MacAddress", (char *)valbuf);
-	if (getenv ("ethaddr") == NULL)
-		setenv ((char *)"ethaddr", (char *)valbuf);
+	sprintf((char *)valbuf, "%pM", buf);
+	ivm_set_value("IVM_MacAddress", (char *)valbuf);
+	if (getenv("ethaddr") == NULL)
+		setenv((char *)"ethaddr", (char *)valbuf);
 	/* IVM_MacCount */
 	count = (buf[10] << 24) +
 		   (buf[11] << 16) +
@@ -235,48 +233,52 @@ static int ivm_analyze_block2 (unsigned char *buf, int len)
 		    buf[13];
 	if (count == 0xffffffff)
 		count = 1;
-	sprintf ((char *)valbuf, "%lx", count);
-	ivm_set_value ("IVM_MacCount", (char *)valbuf);
+	sprintf((char *)valbuf, "%lx", count);
+	ivm_set_value("IVM_MacCount", (char *)valbuf);
 	return 0;
 }
 
-int ivm_analyze_eeprom (unsigned char *buf, int len)
+int ivm_analyze_eeprom(unsigned char *buf, int len)
 {
 	unsigned short	val;
 	unsigned char	valbuf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN];
 	unsigned char	*tmp;
 
-	if (ivm_check_crc (buf, 0) != 0)
+	if (ivm_check_crc(buf, 0) != 0)
 		return -1;
 
-	ivm_get_value (buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN, "IVM_BoardId", 0, 1);
-	val = ivm_get_value (buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN, "IVM_HWKey", 6, 1);
+	ivm_get_value(buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN,
+			"IVM_BoardId", 0, 1);
+	val = ivm_get_value(buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN,
+			"IVM_HWKey", 6, 1);
 	if (val != 0xffff) {
-		sprintf ((char *)valbuf, "%x", ((val /100) % 10));
-		ivm_set_value ("IVM_HWVariant", (char *)valbuf);
-		sprintf ((char *)valbuf, "%x", (val % 100));
-		ivm_set_value ("IVM_HWVersion", (char *)valbuf);
+		sprintf((char *)valbuf, "%x", ((val / 100) % 10));
+		ivm_set_value("IVM_HWVariant", (char *)valbuf);
+		sprintf((char *)valbuf, "%x", (val % 100));
+		ivm_set_value("IVM_HWVersion", (char *)valbuf);
 	}
-	ivm_get_value (buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN, "IVM_Functions", 12, 0);
+	ivm_get_value(buf, CONFIG_SYS_IVM_EEPROM_PAGE_LEN,
+		"IVM_Functions", 12, 0);
 
 	GET_STRING("IVM_Symbol", IVM_POS_SYMBOL_ONLY, 8)
 	GET_STRING("IVM_DeviceName", IVM_POS_SHORT_TEXT, 64)
 	tmp = (unsigned char *) getenv("IVM_DeviceName");
 	if (tmp) {
-		int	len = strlen ((char *)tmp);
+		int	len = strlen((char *)tmp);
 		int	i = 0;
 
 		while (i < len) {
 			if (tmp[i] == ';') {
-				ivm_set_value ("IVM_ShortText", (char *)&tmp[i + 1]);
+				ivm_set_value("IVM_ShortText",
+					(char *)&tmp[i + 1]);
 				break;
 			}
 			i++;
 		}
 		if (i >= len)
-			ivm_set_value ("IVM_ShortText", NULL);
+			ivm_set_value("IVM_ShortText", NULL);
 	} else {
-		ivm_set_value ("IVM_ShortText", NULL);
+		ivm_set_value("IVM_ShortText", NULL);
 	}
 	GET_STRING("IVM_ManufacturerID", IVM_POS_MANU_ID, 32)
 	GET_STRING("IVM_ManufacturerSerialNumber", IVM_POS_MANU_SERIAL, 20)
@@ -288,14 +290,15 @@ int ivm_analyze_eeprom (unsigned char *buf, int len)
 	GET_STRING("IVM_CustomerID", IVM_POS_CUSTOMER_ID, 32)
 	GET_STRING("IVM_CustomerProductID", IVM_POS_CUSTOMER_PROD_ID, 32)
 
-	if (ivm_check_crc (&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2], 2) != 0)
+	if (ivm_check_crc(&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2], 2) != 0)
 		return 0;
-	ivm_analyze_block2 (&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2], CONFIG_SYS_IVM_EEPROM_PAGE_LEN);
+	ivm_analyze_block2(&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2],
+		CONFIG_SYS_IVM_EEPROM_PAGE_LEN);
 
 	return 0;
 }
 
-int ivm_read_eeprom (void)
+int ivm_read_eeprom(void)
 {
 #if defined(CONFIG_I2C_MUX)
 	I2C_MUX_DEVICE *dev = NULL;
@@ -303,33 +306,36 @@ int ivm_read_eeprom (void)
 	uchar i2c_buffer[CONFIG_SYS_IVM_EEPROM_MAX_LEN];
 	uchar	*buf;
 	unsigned dev_addr = CONFIG_SYS_IVM_EEPROM_ADR;
+	int ret;
 
 #if defined(CONFIG_I2C_MUX)
 	/* First init the Bus, select the Bus */
 #if defined(CONFIG_SYS_I2C_IVM_BUS)
-	dev = i2c_mux_ident_muxstring ((uchar *)CONFIG_SYS_I2C_IVM_BUS);
+	dev = i2c_mux_ident_muxstring((uchar *)CONFIG_SYS_I2C_IVM_BUS);
 #else
-	buf = (unsigned char *) getenv ("EEprom_ivm");
+	buf = (unsigned char *) getenv("EEprom_ivm");
 	if (buf != NULL)
-		dev = i2c_mux_ident_muxstring (buf);
+		dev = i2c_mux_ident_muxstring(buf);
 #endif
 	if (dev == NULL) {
-		printf ("Error couldnt add Bus for IVM\n");
+		printf("Error couldnt add Bus for IVM\n");
 		return -1;
 	}
-	i2c_set_bus_num (dev->busid);
+	i2c_set_bus_num(dev->busid);
 #endif
 
-	buf = (unsigned char *) getenv ("EEprom_ivm_addr");
+	buf = (unsigned char *) getenv("EEprom_ivm_addr");
 	if (buf != NULL)
-		dev_addr = simple_strtoul ((char *)buf, NULL, 16);
+		dev_addr = simple_strtoul((char *)buf, NULL, 16);
 
-	if (i2c_read(dev_addr, 0, 1, i2c_buffer, CONFIG_SYS_IVM_EEPROM_MAX_LEN) != 0) {
+	ret = i2c_read(dev_addr, 0, 1, i2c_buffer,
+			CONFIG_SYS_IVM_EEPROM_MAX_LEN);
+	if (ret != 0) {
 		printf ("Error reading EEprom\n");
 		return -2;
 	}
 
-	return ivm_analyze_eeprom (i2c_buffer, CONFIG_SYS_IVM_EEPROM_MAX_LEN);
+	return ivm_analyze_eeprom(i2c_buffer, CONFIG_SYS_IVM_EEPROM_MAX_LEN);
 }
 
 #if defined(CONFIG_SYS_I2C_INIT_BOARD)
@@ -339,145 +345,117 @@ int ivm_read_eeprom (void)
 #if defined(CONFIG_MGCOGE)
 #define SDA_MASK	0x00010000
 #define SCL_MASK	0x00020000
-static void set_pin (int state, unsigned long mask)
+static void set_pin(int state, unsigned long mask)
 {
-	volatile ioport_t *iop = ioport_addr ((immap_t *)CONFIG_SYS_IMMR, 3);
+	ioport_t *iop = ioport_addr((immap_t *)CONFIG_SYS_IMMR, 3);
 
 	if (state)
-		iop->pdat |= (mask);
+		setbits_be32(&iop->pdat, mask);
 	else
-		iop->pdat &= ~(mask);
+		clrbits_be32(&iop->pdat, mask);
 
-	iop->pdir |= (mask);
+	setbits_be32(&iop->pdir, mask);
 }
 
-static int get_pin (unsigned long mask)
+static int get_pin(unsigned long mask)
 {
-	volatile ioport_t *iop = ioport_addr ((immap_t *)CONFIG_SYS_IMMR, 3);
+	ioport_t *iop = ioport_addr((immap_t *)CONFIG_SYS_IMMR, 3);
 
-	iop->pdir &= ~(mask);
-	return (0 != (iop->pdat & (mask)));
+	clrbits_be32(&iop->pdir, mask);
+	return 0 != (in_be32(&iop->pdat) & mask);
 }
 
-static void set_sda (int state)
+static void set_sda(int state)
 {
-	set_pin (state, SDA_MASK);
+	set_pin(state, SDA_MASK);
 }
 
-static void set_scl (int state)
+static void set_scl(int state)
 {
-	set_pin (state, SCL_MASK);
+	set_pin(state, SCL_MASK);
 }
 
-static int get_sda (void)
+static int get_sda(void)
 {
-	return get_pin (SDA_MASK);
+	return get_pin(SDA_MASK);
 }
 
-static int get_scl (void)
+static int get_scl(void)
 {
-	return get_pin (SCL_MASK);
+	return get_pin(SCL_MASK);
 }
 
 #if defined(CONFIG_HARD_I2C)
-static void setports (int gpio)
+static void setports(int gpio)
 {
-	volatile ioport_t *iop = ioport_addr ((immap_t *)CONFIG_SYS_IMMR, 3);
+	ioport_t *iop = ioport_addr((immap_t *)CONFIG_SYS_IMMR, 3);
 
 	if (gpio) {
-		iop->ppar &= ~(SDA_MASK | SCL_MASK);
-		iop->podr &= ~(SDA_MASK | SCL_MASK);
+		clrbits_be32(&iop->ppar, (SDA_MASK | SCL_MASK));
+		clrbits_be32(&iop->podr, (SDA_MASK | SCL_MASK));
 	} else {
-		iop->ppar |= (SDA_MASK | SCL_MASK);
-		iop->pdir &= ~(SDA_MASK | SCL_MASK);
-		iop->podr |= (SDA_MASK | SCL_MASK);
+		setbits_be32(&iop->ppar, (SDA_MASK | SCL_MASK));
+		clrbits_be32(&iop->pdir, (SDA_MASK | SCL_MASK));
+		setbits_be32(&iop->podr, (SDA_MASK | SCL_MASK));
 	}
 }
 #endif
 #endif
 
-#if defined(CONFIG_KM8XX)
-static void set_sda (int state)
-{
-	I2C_SDA(state);
-}
-
-static void set_scl (int state)
-{
-	I2C_SCL(state);
-}
-
-static int get_sda (void)
-{
-	return I2C_READ;
-}
-
-static int get_scl (void)
-{
-	int	val;
-
-	*(unsigned short *)(I2C_BASE_DIR) &=  ~SCL_CONF;
-	udelay (1);
-	val = *(unsigned char *)(I2C_BASE_PORT);
-
-	return ((val & SCL_BIT) == SCL_BIT);
-}
-#endif
-
 #if !defined(CONFIG_KMETER1)
-static void writeStartSeq (void)
+static void writeStartSeq(void)
 {
-	set_sda (1);
-	udelay (DELAY_HALF_PERIOD);
-	set_scl (1);
-	udelay (DELAY_HALF_PERIOD);
-	set_sda (0);
-	udelay (DELAY_HALF_PERIOD);
-	set_scl (0);
-	udelay (DELAY_HALF_PERIOD);
+	set_sda(1);
+	udelay(DELAY_HALF_PERIOD);
+	set_scl(1);
+	udelay(DELAY_HALF_PERIOD);
+	set_sda(0);
+	udelay(DELAY_HALF_PERIOD);
+	set_scl(0);
+	udelay(DELAY_HALF_PERIOD);
 }
 
-/* I2C is a synchronous protocol and resets of the processor in the middle
-   of an access can block the I2C Bus until a powerdown of the full unit is
-   done. This function toggles the SCL until the SCL and SCA line are
-   released, but max. 16 times, after this a I2C start-sequence is sent.
-   This I2C Deblocking mechanism was developed by Keymile in association
-   with Anatech and Atmel in 1998.
+/*
+ * I2C is a synchronous protocol and resets of the processor in the middle
+ * of an access can block the I2C Bus until a powerdown of the full unit is
+ * done. This function toggles the SCL until the SCL and SCA line are
+ * released, but max. 16 times, after this a I2C start-sequence is sent.
+ * This I2C Deblocking mechanism was developed by Keymile in association
+ * with Anatech and Atmel in 1998.
  */
-static int i2c_make_abort (void)
+static int i2c_make_abort(void)
 {
 	int	scl_state = 0;
 	int	sda_state = 0;
 	int	i = 0;
 	int	ret = 0;
 
-	if (!get_sda ()) {
+	if (!get_sda()) {
 		ret = -1;
 		while (i < 16) {
 			i++;
-			set_scl (0);
-			udelay (DELAY_ABORT_SEQ);
-			set_scl (1);
-			udelay (DELAY_ABORT_SEQ);
-			scl_state = get_scl ();
-			sda_state = get_sda ();
+			set_scl(0);
+			udelay(DELAY_ABORT_SEQ);
+			set_scl(1);
+			udelay(DELAY_ABORT_SEQ);
+			scl_state = get_scl();
+			sda_state = get_sda();
 			if (scl_state && sda_state) {
 				ret = 0;
 				break;
 			}
 		}
 	}
-	if (ret == 0) {
-		for (i =0; i < 5; i++) {
-			writeStartSeq ();
-		}
-	}
-	get_sda ();
+	if (ret == 0)
+		for (i = 0; i < 5; i++)
+			writeStartSeq();
+
+	get_sda();
 	return ret;
 }
 #endif
 
-/**
+/*
  * i2c_init_board - reset i2c bus. When the board is powercycled during a
  * bus transfer it might hang; for details see doc/I2C_Edge_Conditions.
  */
@@ -488,36 +466,37 @@ void i2c_init_board(void)
 	dev = (struct fsl_i2c *) (CONFIG_SYS_IMMR + CONFIG_SYS_I2C_OFFSET);
 	uchar	dummy;
 
-	out_8 (&dev->cr, (I2C_CR_MSTA));
-	out_8 (&dev->cr, (I2C_CR_MEN | I2C_CR_MSTA));
+	out_8(&dev->cr, (I2C_CR_MSTA));
+	out_8(&dev->cr, (I2C_CR_MEN | I2C_CR_MSTA));
 	dummy = in_8(&dev->dr);
 	dummy = in_8(&dev->dr);
 	if (dummy != 0xff) {
 		dummy = in_8(&dev->dr);
 	}
-	out_8 (&dev->cr, (I2C_CR_MEN));
-	out_8 (&dev->cr, 0x00);
-	out_8 (&dev->cr, (I2C_CR_MEN));
-
+	out_8(&dev->cr, (I2C_CR_MEN));
+	out_8(&dev->cr, 0x00);
+	out_8(&dev->cr, (I2C_CR_MEN));
 #else
 #if defined(CONFIG_HARD_I2C) && !defined(MACH_TYPE_KM_KIRKWOOD)
-	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR ;
-	volatile i2c8260_t *i2c	= (i2c8260_t *)&immap->im_i2c;
+	immap_t *immap = (immap_t *)CONFIG_SYS_IMMR ;
+	i2c8260_t *i2c	= (i2c8260_t *)&immap->im_i2c;
 
-	/* disable I2C controller first, otherwhise it thinks we want to    */
-	/* talk to the slave port...                                        */
-	i2c->i2c_i2mod &= ~0x01;
+	/*
+	 * disable I2C controller first, otherwhise it thinks we want to
+	 * talk to the slave port...
+	 */
+	clrbits_8(&i2c->i2c_i2mod, 0x01);
 
 	/* Set the PortPins to GPIO */
-	setports (1);
+	setports(1);
 #endif
 
 	/* Now run the AbortSequence() */
-	i2c_make_abort ();
+	i2c_make_abort();
 
 #if defined(CONFIG_HARD_I2C)
 	/* Set the PortPins back to use for I2C */
-	setports (0);
+	setports(0);
 #endif
 #endif
 }
@@ -525,7 +504,7 @@ void i2c_init_board(void)
 #endif
 
 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
-int fdt_set_node_and_value (void *blob,
+int fdt_set_node_and_value(void *blob,
 				char *nodename,
 				char *regname,
 				void *var,
@@ -534,21 +513,22 @@ int fdt_set_node_and_value (void *blob,
 	int ret = 0;
 	int nodeoffset = 0;
 
-	nodeoffset = fdt_path_offset (blob, nodename);
+	nodeoffset = fdt_path_offset(blob, nodename);
 	if (nodeoffset >= 0) {
-		ret = fdt_setprop (blob, nodeoffset, regname, var,
+		ret = fdt_setprop(blob, nodeoffset, regname, var,
 					size);
 		if (ret < 0)
 			printf("ft_blob_update(): cannot set %s/%s "
 				"property err:%s\n", nodename, regname,
-				fdt_strerror (ret));
+				fdt_strerror(ret));
 	} else {
 		printf("ft_blob_update(): cannot find %s node "
-			"err:%s\n", nodename, fdt_strerror (nodeoffset));
+			"err:%s\n", nodename, fdt_strerror(nodeoffset));
 	}
 	return ret;
 }
-int fdt_get_node_and_value (void *blob,
+
+int fdt_get_node_and_value(void *blob,
 				char *nodename,
 				char *propname,
 				void **var)
@@ -556,42 +536,43 @@ int fdt_get_node_and_value (void *blob,
 	int len;
 	int nodeoffset = 0;
 
-	nodeoffset = fdt_path_offset (blob, nodename);
+	nodeoffset = fdt_path_offset(blob, nodename);
 	if (nodeoffset >= 0) {
-		*var = (void *)fdt_getprop (blob, nodeoffset, propname, &len);
+		*var = (void *)fdt_getprop(blob, nodeoffset, propname, &len);
 		if (len == 0) {
 			/* no value */
-			printf ("%s no value\n", __FUNCTION__);
+			printf("%s no value\n", __func__);
 			return -1;
 		} else if (len > 0) {
 			return len;
 		} else {
-			printf ("libfdt fdt_getprop(): %s\n",
+			printf("libfdt fdt_getprop(): %s\n",
 				fdt_strerror(len));
 			return -2;
 		}
 	} else {
-		printf("%s: cannot find %s node err:%s\n", __FUNCTION__,
-			nodename, fdt_strerror (nodeoffset));
+		printf("%s: cannot find %s node err:%s\n", __func__,
+			nodename, fdt_strerror(nodeoffset));
 		return -3;
 	}
 }
 #endif
 
 #if !defined(MACH_TYPE_KM_KIRKWOOD)
-int ethernet_present (void)
+int ethernet_present(void)
 {
-	return (in_8((u8 *)CONFIG_SYS_PIGGY_BASE + CONFIG_SYS_SLOT_ID_OFF) & 0x80);
+	struct km_bec_fpga *base = (struct km_bec_fpga *)CONFIG_SYS_PIGGY_BASE;
+
+	return in_8(&base->bprth) & PIGGY_PRESENT;
 }
 #endif
 
-int board_eth_init (bd_t *bis)
+int board_eth_init(bd_t *bis)
 {
 #ifdef CONFIG_KEYMILE_HDLC_ENET
-	(void)keymile_hdlc_enet_initialize (bis);
+	(void)keymile_hdlc_enet_initialize(bis);
 #endif
-	if (ethernet_present ()) {
+	if (ethernet_present())
 		return -1;
-	}
 	return 0;
 }