* Code cleanup:

  - remove trailing white space, trailing empty lines, C++ comments, etc.
  - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c)

* Patches by Kenneth Johansson, 25 Jun 2003:
  - major rework of command structure
    (work done mostly by Michal Cendrowski and Joakim Kristiansen)

1 files changed, 200 insertions, 201 deletions

diff --git a/cpu/ppc4xx/i2c.c b/cpu/ppc4xx/i2c.c
index 4bf0bbd..099d30a 100644
--- a/cpu/ppc4xx/i2c.c
+++ b/cpu/ppc4xx/i2c.c
@@ -85,7 +85,7 @@ void i2c_init (int speed, int slaveadd)
 	unsigned long freqOPB;
 	int val, divisor;
 
-#ifdef CFG_I2C_INIT_BOARD        
+#ifdef CFG_I2C_INIT_BOARD
 	/* call board specific i2c bus reset routine before accessing the   */
 	/* environment, which might be in a chip on that bus. For details   */
 	/* about this problem see doc/I2C_Edge_Conditions.                  */
@@ -134,19 +134,19 @@ void i2c_init (int speed, int slaveadd)
 	__asm__ volatile ("eieio");
 
 
-        val = in8(IIC_MDCNTL);
-        __asm__ volatile ("eieio");
+	val = in8(IIC_MDCNTL);
+	__asm__ volatile ("eieio");
 
-        /* Ignore General Call, slave transfers are ignored,
-           disable interrupts, exit unknown bus state, enable hold
-           SCL
-           100kHz normaly or FastMode for 400kHz and above
-        */
+	/* Ignore General Call, slave transfers are ignored,
+	   disable interrupts, exit unknown bus state, enable hold
+	   SCL
+	   100kHz normaly or FastMode for 400kHz and above
+	*/
 
-        val |= IIC_MDCNTL_EUBS|IIC_MDCNTL_HSCL;
-        if( speed >= 400000 ){
-                val |= IIC_MDCNTL_FSM;
-        }
+	val |= IIC_MDCNTL_EUBS|IIC_MDCNTL_HSCL;
+	if( speed >= 400000 ){
+		val |= IIC_MDCNTL_FSM;
+	}
 	out8 (IIC_MDCNTL, val);
 
 	/* clear control reg */
@@ -182,153 +182,153 @@ void i2c_init (int speed, int slaveadd)
 */
 static
 int i2c_transfer(unsigned char cmd_type,
-                 unsigned char chip,
-                 unsigned char addr[],
-                 unsigned char addr_len,
-                 unsigned char data[],
+		 unsigned char chip,
+		 unsigned char addr[],
+		 unsigned char addr_len,
+		 unsigned char data[],
 		 unsigned short data_len )
 {
-        unsigned char* ptr;
-        int reading;
-        int tran,cnt;
-        int result;
-        int status;
-        int i;
-        uchar creg;
-
-        if( data == 0 || data_len == 0 ){
-                /*Don't support data transfer of no length or to address 0*/
-                printf( "i2c_transfer: bad call\n" );
-                return IIC_NOK;
-        }
-        if( addr && addr_len ){
-                ptr = addr;
-                cnt = addr_len;
-                reading = 0;
-        }else{
-                ptr = data;
-                cnt = data_len;
-                reading = cmd_type;
-        }
-
-        /*Clear Stop Complete Bit*/
-        out8(IIC_STS,IIC_STS_SCMP);
-        /* Check init */
-        i=10;
-        do {
-                /* Get status */
-                status = in8(IIC_STS);
-                __asm__ volatile("eieio");
-                i--;
-        } while ((status & IIC_STS_PT) && (i>0));
-
-        if (status & IIC_STS_PT) {
-                result = IIC_NOK_TOUT;
-                return(result);
-        }
-        /*flush the Master/Slave Databuffers*/
-        out8(IIC_MDCNTL, ((in8(IIC_MDCNTL))|IIC_MDCNTL_FMDB|IIC_MDCNTL_FSDB));
-        /*need to wait 4 OPB clocks? code below should take that long*/
-
-        /* 7-bit adressing */
-        out8(IIC_HMADR,0);
-        out8(IIC_LMADR, chip);
-        __asm__ volatile("eieio");
-
-        tran = 0;
-        result = IIC_OK;
-        creg = 0;
-
-        while ( tran != cnt && (result == IIC_OK)) {
-                int  bc,j;
-
-                /* Control register =
-                   Normal transfer, 7-bits adressing, Transfer up to bc bytes, Normal start,
-                   Transfer is a sequence of transfers
-                */
-                creg |= IIC_CNTL_PT;
-
-                bc = (cnt - tran) > 4 ? 4 :
-                        cnt - tran;
-                creg |= (bc-1)<<4;
-                /* if the real cmd type is write continue trans*/
-                if ( (!cmd_type && (ptr == addr)) || ((tran+bc) != cnt) )
-                        creg |= IIC_CNTL_CHT;
-
-                if (reading)
-                        creg |= IIC_CNTL_READ;
-                else {
-                        for(j=0; j<bc; j++) {
-                                /* Set buffer */
-                                out8(IIC_MDBUF,ptr[tran+j]);
-                                __asm__ volatile("eieio");
-                        }
-                }
-                out8(IIC_CNTL, creg );
-                __asm__ volatile("eieio");
-
-                /* Transfer is in progress
-                   we have to wait for upto 5 bytes of data
-                   1 byte chip address+r/w bit then bc bytes
-                   of data.
-                   udelay(10) is 1 bit time at 100khz
-                   Doubled for slop. 20 is too small.
+	unsigned char* ptr;
+	int reading;
+	int tran,cnt;
+	int result;
+	int status;
+	int i;
+	uchar creg;
+
+	if( data == 0 || data_len == 0 ){
+		/*Don't support data transfer of no length or to address 0*/
+		printf( "i2c_transfer: bad call\n" );
+		return IIC_NOK;
+	}
+	if( addr && addr_len ){
+		ptr = addr;
+		cnt = addr_len;
+		reading = 0;
+	}else{
+		ptr = data;
+		cnt = data_len;
+		reading = cmd_type;
+	}
+
+	/*Clear Stop Complete Bit*/
+	out8(IIC_STS,IIC_STS_SCMP);
+	/* Check init */
+	i=10;
+	do {
+		/* Get status */
+		status = in8(IIC_STS);
+		__asm__ volatile("eieio");
+		i--;
+	} while ((status & IIC_STS_PT) && (i>0));
+
+	if (status & IIC_STS_PT) {
+		result = IIC_NOK_TOUT;
+		return(result);
+	}
+	/*flush the Master/Slave Databuffers*/
+	out8(IIC_MDCNTL, ((in8(IIC_MDCNTL))|IIC_MDCNTL_FMDB|IIC_MDCNTL_FSDB));
+	/*need to wait 4 OPB clocks? code below should take that long*/
+
+	/* 7-bit adressing */
+	out8(IIC_HMADR,0);
+	out8(IIC_LMADR, chip);
+	__asm__ volatile("eieio");
+
+	tran = 0;
+	result = IIC_OK;
+	creg = 0;
+
+	while ( tran != cnt && (result == IIC_OK)) {
+		int  bc,j;
+
+		/* Control register =
+		   Normal transfer, 7-bits adressing, Transfer up to bc bytes, Normal start,
+		   Transfer is a sequence of transfers
 		*/
-                i=2*5*8;
-                do {
-                        /* Get status */
-                        status = in8(IIC_STS);
-                        __asm__ volatile("eieio");
-                        udelay (10);
-                        i--;
-                } while ((status & IIC_STS_PT) && !(status & IIC_STS_ERR)
+		creg |= IIC_CNTL_PT;
+
+		bc = (cnt - tran) > 4 ? 4 :
+			cnt - tran;
+		creg |= (bc-1)<<4;
+		/* if the real cmd type is write continue trans*/
+		if ( (!cmd_type && (ptr == addr)) || ((tran+bc) != cnt) )
+			creg |= IIC_CNTL_CHT;
+
+		if (reading)
+			creg |= IIC_CNTL_READ;
+		else {
+			for(j=0; j<bc; j++) {
+				/* Set buffer */
+				out8(IIC_MDBUF,ptr[tran+j]);
+				__asm__ volatile("eieio");
+			}
+		}
+		out8(IIC_CNTL, creg );
+		__asm__ volatile("eieio");
+
+		/* Transfer is in progress
+		   we have to wait for upto 5 bytes of data
+		   1 byte chip address+r/w bit then bc bytes
+		   of data.
+		   udelay(10) is 1 bit time at 100khz
+		   Doubled for slop. 20 is too small.
+		*/
+		i=2*5*8;
+		do {
+			/* Get status */
+			status = in8(IIC_STS);
+			__asm__ volatile("eieio");
+			udelay (10);
+			i--;
+		} while ((status & IIC_STS_PT) && !(status & IIC_STS_ERR)
 			 && (i>0));
 
-                if (status & IIC_STS_ERR) {
-                        result = IIC_NOK;
-                        status = in8 (IIC_EXTSTS);
-                        /* Lost arbitration? */
-                        if (status & IIC_EXTSTS_LA)
-                                result = IIC_NOK_LA;
-                        /* Incomplete transfer? */
-                        if (status & IIC_EXTSTS_ICT)
-                                result = IIC_NOK_ICT;
-                        /* Transfer aborted? */
-                        if (status & IIC_EXTSTS_XFRA)
-                                result = IIC_NOK_XFRA;
-                } else if ( status & IIC_STS_PT) {
-                        result = IIC_NOK_TOUT;
-                }
-                /* Command is reading => get buffer */
-                if ((reading) && (result == IIC_OK)) {
-                        /* Are there data in buffer */
-                        if (status & IIC_STS_MDBS) {
-                                /*
-                                  even if we have data we have to wait 4OPB clocks
-                                  for it to hit the front of the FIFO, after that
-                                  we can just read. We should check XFCNT here and
-                                  if the FIFO is full there is no need to wait.
+		if (status & IIC_STS_ERR) {
+			result = IIC_NOK;
+			status = in8 (IIC_EXTSTS);
+			/* Lost arbitration? */
+			if (status & IIC_EXTSTS_LA)
+				result = IIC_NOK_LA;
+			/* Incomplete transfer? */
+			if (status & IIC_EXTSTS_ICT)
+				result = IIC_NOK_ICT;
+			/* Transfer aborted? */
+			if (status & IIC_EXTSTS_XFRA)
+				result = IIC_NOK_XFRA;
+		} else if ( status & IIC_STS_PT) {
+			result = IIC_NOK_TOUT;
+		}
+		/* Command is reading => get buffer */
+		if ((reading) && (result == IIC_OK)) {
+			/* Are there data in buffer */
+			if (status & IIC_STS_MDBS) {
+				/*
+				  even if we have data we have to wait 4OPB clocks
+				  for it to hit the front of the FIFO, after that
+				  we can just read. We should check XFCNT here and
+				  if the FIFO is full there is no need to wait.
 				*/
-                                udelay (1);
-                                for(j=0;j<bc;j++) {
-                                        ptr[tran+j] = in8(IIC_MDBUF);
-                                        __asm__ volatile("eieio");
-                                }
-                        } else
-                                result = IIC_NOK_DATA;
-                }
-                creg = 0;
-                tran+=bc;
-                if( ptr == addr && tran == cnt ) {
-                        ptr = data;
-                        cnt = data_len;
-                        tran = 0;
-                        reading = cmd_type;
-                        if( reading )
-                                creg = IIC_CNTL_RPST;
-                }
-        }
-        return (result);
+				udelay (1);
+				for(j=0;j<bc;j++) {
+					ptr[tran+j] = in8(IIC_MDBUF);
+					__asm__ volatile("eieio");
+				}
+			} else
+				result = IIC_NOK_DATA;
+		}
+		creg = 0;
+		tran+=bc;
+		if( ptr == addr && tran == cnt ) {
+			ptr = data;
+			cnt = data_len;
+			tran = 0;
+			reading = cmd_type;
+			if( reading )
+				creg = IIC_CNTL_RPST;
+		}
+	}
+	return (result);
 }
 
 int i2c_probe (uchar chip)
@@ -337,89 +337,88 @@ int i2c_probe (uchar chip)
 
 	buf[0] = 0;
 
-        /*
-         * What is needed is to send the chip address and verify that the
-         * address was <ACK>ed (i.e. there was a chip at that address which
-         * drove the data line low).
-         */
-        return(i2c_transfer (1, chip << 1, 0,0, buf, 1) != 0);
+	/*
+	 * What is needed is to send the chip address and verify that the
+	 * address was <ACK>ed (i.e. there was a chip at that address which
+	 * drove the data line low).
+	 */
+	return(i2c_transfer (1, chip << 1, 0,0, buf, 1) != 0);
 }
 
 
-
 int i2c_read (uchar chip, uint addr, int alen, uchar * buffer, int len)
 {
-        uchar xaddr[4];
-        int ret;
+	uchar xaddr[4];
+	int ret;
 
 	if ( alen > 4 ) {
 		printf ("I2C read: addr len %d not supported\n", alen);
 		return 1;
 	}
 
-        if ( alen > 0 ) {
-                xaddr[0] = (addr >> 24) & 0xFF;
-                xaddr[1] = (addr >> 16) & 0xFF;
-                xaddr[2] = (addr >> 8) & 0xFF;
-                xaddr[3] = addr & 0xFF;
-        }
+	if ( alen > 0 ) {
+		xaddr[0] = (addr >> 24) & 0xFF;
+		xaddr[1] = (addr >> 16) & 0xFF;
+		xaddr[2] = (addr >> 8) & 0xFF;
+		xaddr[3] = addr & 0xFF;
+	}
 
 
 #ifdef CFG_I2C_EEPROM_ADDR_OVERFLOW
 	/*
-         * EEPROM chips that implement "address overflow" are ones
-         * like Catalyst 24WC04/08/16 which has 9/10/11 bits of
-         * address and the extra bits end up in the "chip address"
-         * bit slots. This makes a 24WC08 (1Kbyte) chip look like
-         * four 256 byte chips.
+	 * EEPROM chips that implement "address overflow" are ones
+	 * like Catalyst 24WC04/08/16 which has 9/10/11 bits of
+	 * address and the extra bits end up in the "chip address"
+	 * bit slots. This makes a 24WC08 (1Kbyte) chip look like
+	 * four 256 byte chips.
 	 *
-         * Note that we consider the length of the address field to
-         * still be one byte because the extra address bits are
-         * hidden in the chip address.
+	 * Note that we consider the length of the address field to
+	 * still be one byte because the extra address bits are
+	 * hidden in the chip address.
 	 */
-        if( alen > 0 )
-                chip |= ((addr >> (alen * 8)) & CFG_I2C_EEPROM_ADDR_OVERFLOW);
+	if( alen > 0 )
+		chip |= ((addr >> (alen * 8)) & CFG_I2C_EEPROM_ADDR_OVERFLOW);
 #endif
-        if( (ret = i2c_transfer( 1, chip<<1, &xaddr[4-alen], alen, buffer, len )) != 0) {
-                printf( "I2c read: failed %d\n", ret);
-                return 1;
-        }
-        return 0;
+	if( (ret = i2c_transfer( 1, chip<<1, &xaddr[4-alen], alen, buffer, len )) != 0) {
+		printf( "I2c read: failed %d\n", ret);
+		return 1;
+	}
+	return 0;
 }
 
 int i2c_write (uchar chip, uint addr, int alen, uchar * buffer, int len)
 {
-        uchar xaddr[4];
+	uchar xaddr[4];
 
 	if ( alen > 4 ) {
 		printf ("I2C write: addr len %d not supported\n", alen);
 		return 1;
 
 	}
-        if ( alen > 0 ) {
-                xaddr[0] = (addr >> 24) & 0xFF;
-                xaddr[1] = (addr >> 16) & 0xFF;
-                xaddr[2] = (addr >> 8) & 0xFF;
-                xaddr[3] = addr & 0xFF;
-        }
+	if ( alen > 0 ) {
+		xaddr[0] = (addr >> 24) & 0xFF;
+		xaddr[1] = (addr >> 16) & 0xFF;
+		xaddr[2] = (addr >> 8) & 0xFF;
+		xaddr[3] = addr & 0xFF;
+	}
 
 #ifdef CFG_I2C_EEPROM_ADDR_OVERFLOW
 	/*
-         * EEPROM chips that implement "address overflow" are ones
-         * like Catalyst 24WC04/08/16 which has 9/10/11 bits of
-         * address and the extra bits end up in the "chip address"
-         * bit slots. This makes a 24WC08 (1Kbyte) chip look like
-         * four 256 byte chips.
+	 * EEPROM chips that implement "address overflow" are ones
+	 * like Catalyst 24WC04/08/16 which has 9/10/11 bits of
+	 * address and the extra bits end up in the "chip address"
+	 * bit slots. This makes a 24WC08 (1Kbyte) chip look like
+	 * four 256 byte chips.
 	 *
-         * Note that we consider the length of the address field to
-         * still be one byte because the extra address bits are
-         * hidden in the chip address.
+	 * Note that we consider the length of the address field to
+	 * still be one byte because the extra address bits are
+	 * hidden in the chip address.
 	 */
-        if( alen > 0 )
-                chip |= ((addr >> (alen * 8)) & CFG_I2C_EEPROM_ADDR_OVERFLOW);
+	if( alen > 0 )
+		chip |= ((addr >> (alen * 8)) & CFG_I2C_EEPROM_ADDR_OVERFLOW);
 #endif
 
-        return (i2c_transfer( 0, chip<<1, &xaddr[4-alen], alen, buffer, len ) != 0);
+	return (i2c_transfer( 0, chip<<1, &xaddr[4-alen], alen, buffer, len ) != 0);
 }
 
 /*-----------------------------------------------------------------------