Merge branch 'i2c'

board/mpc8560ads/u-boot.lds

@@ -74,7 +74,6 @@ SECTIONS
     cpu/mpc85xx/cpu_init.o (.text)
     cpu/mpc85xx/cpu.o (.text)
     cpu/mpc85xx/speed.o (.text)
-    cpu/mpc85xx/i2c.o (.text)
     cpu/mpc85xx/spd_sdram.o (.text)
     common/dlmalloc.o (.text)
     lib_generic/crc32.o (.text)

board/sbc8560/u-boot.lds

@@ -77,7 +77,6 @@ SECTIONS
     cpu/mpc85xx/cpu_init.o (.text)
     cpu/mpc85xx/cpu.o (.text)
     cpu/mpc85xx/speed.o (.text)
-    cpu/mpc85xx/i2c.o (.text)
     cpu/mpc85xx/spd_sdram.o (.text)
     common/dlmalloc.o (.text)
     lib_generic/crc32.o (.text)

board/stxgp3/u-boot.lds

@@ -79,7 +79,6 @@ SECTIONS
     cpu/mpc85xx/cpu_init.o (.text)
     cpu/mpc85xx/cpu.o (.text)
     cpu/mpc85xx/speed.o (.text)
-    cpu/mpc85xx/i2c.o (.text)
     cpu/mpc85xx/spd_sdram.o (.text)
     common/dlmalloc.o (.text)
     lib_generic/crc32.o (.text)

cpu/mpc85xx/Makefile

@@ -30,7 +30,7 @@ LIB	= $(obj)lib$(CPU).a
 
 START	= start.o resetvec.o
 COBJS	= traps.o cpu.o cpu_init.o speed.o interrupts.o \
-	  pci.o serial_scc.o commproc.o ether_fcc.o i2c.o spd_sdram.o
+	  pci.o serial_scc.o commproc.o ether_fcc.o spd_sdram.o
 
 SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))

cpu/mpc85xx/i2c.c

@@ -1,265 +0,0 @@
-/*
- * (C) Copyright 2003,Motorola Inc.
- * Xianghua Xiao <x.xiao@motorola.com>
- * Adapted for Motorola 85xx chip.
- *
- * (C) Copyright 2003
- * Gleb Natapov <gnatapov@mrv.com>
- * Some bits are taken from linux driver writen by adrian@humboldt.co.uk
- *
- * Hardware I2C driver for MPC107 PCI bridge.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <command.h>
-#include <asm/io.h>
-
-#ifdef CONFIG_HARD_I2C
-#include <i2c.h>
-
-#define TIMEOUT (CFG_HZ/4)
-
-#define I2C_Addr ((u8 *)(CFG_CCSRBAR + 0x3000))
-
-#define I2CADR  &I2C_Addr[0]
-#define I2CFDR  &I2C_Addr[4]
-#define I2CCCR  &I2C_Addr[8]
-#define I2CCSR  &I2C_Addr[12]
-#define I2CCDR  &I2C_Addr[16]
-#define I2CDFSRR &I2C_Addr[20]
-
-#define I2C_READ  1
-#define I2C_WRITE 0
-
-void
-i2c_init(int speed, int slaveadd)
-{
-	/* stop I2C controller */
-	writeb(0x0, I2CCCR);
-
-	/* set clock */
-	writeb(0x3f, I2CFDR);
-
-	/* set default filter */
-	writeb(0x10,I2CDFSRR);
-
-	/* write slave address */
-	writeb(slaveadd, I2CADR);
-
-	/* clear status register */
-	writeb(0x0, I2CCSR);
-
-	/* start I2C controller */
-	writeb(MPC85xx_I2CCR_MEN, I2CCCR);
-}
-
-static __inline__ int
-i2c_wait4bus (void)
-{
-	ulong timeval = get_timer (0);
-
-	while (readb(I2CCSR) & MPC85xx_I2CSR_MBB) {
-		if (get_timer (timeval) > TIMEOUT) {
-			return -1;
-		}
-	}
-
-  return 0;
-}
-
-static __inline__ int
-i2c_wait (int write)
-{
-	u32 csr;
-	ulong timeval = get_timer (0);
-
-	do {
-		csr = readb(I2CCSR);
-
-		if (!(csr & MPC85xx_I2CSR_MIF))
-			continue;
-
-		writeb(0x0, I2CCSR);
-
-		if (csr & MPC85xx_I2CSR_MAL) {
-			debug("i2c_wait: MAL\n");
-			return -1;
-		}
-
-		if (!(csr & MPC85xx_I2CSR_MCF))	{
-			debug("i2c_wait: unfinished\n");
-			return -1;
-		}
-
-		if (write == I2C_WRITE && (csr & MPC85xx_I2CSR_RXAK)) {
-			debug("i2c_wait: No RXACK\n");
-			return -1;
-		}
-
-		return 0;
-	} while (get_timer (timeval) < TIMEOUT);
-
-	debug("i2c_wait: timed out\n");
-	return -1;
-}
-
-static __inline__ int
-i2c_write_addr (u8 dev, u8 dir, int rsta)
-{
-	writeb(MPC85xx_I2CCR_MEN | MPC85xx_I2CCR_MSTA | MPC85xx_I2CCR_MTX |
-	       (rsta?MPC85xx_I2CCR_RSTA:0),
-	       I2CCCR);
-
-	writeb((dev << 1) | dir, I2CCDR);
-
-	if (i2c_wait (I2C_WRITE) < 0)
-		return 0;
-
-	return 1;
-}
-
-static __inline__ int
-__i2c_write (u8 *data, int length)
-{
-	int i;
-
-	writeb(MPC85xx_I2CCR_MEN | MPC85xx_I2CCR_MSTA | MPC85xx_I2CCR_MTX,
-	       I2CCCR);
-
-	for (i=0; i < length; i++) {
-		writeb(data[i], I2CCDR);
-
-		if (i2c_wait (I2C_WRITE) < 0)
-			break;
-	}
-
-	return i;
-}
-
-static __inline__ int
-__i2c_read (u8 *data, int length)
-{
-	int i;
-
-	writeb(MPC85xx_I2CCR_MEN | MPC85xx_I2CCR_MSTA |
-	       ((length == 1) ? MPC85xx_I2CCR_TXAK : 0),
-	       I2CCCR);
-
-	/* dummy read */
-	readb(I2CCDR);
-
-	for (i=0; i < length; i++) {
-		if (i2c_wait (I2C_READ) < 0)
-			break;
-
-		/* Generate ack on last next to last byte */
-		if (i == length - 2)
-			writeb(MPC85xx_I2CCR_MEN | MPC85xx_I2CCR_MSTA |
-			       MPC85xx_I2CCR_TXAK,
-			       I2CCCR);
-
-		/* Generate stop on last byte */
-		if (i == length - 1)
-			writeb(MPC85xx_I2CCR_MEN | MPC85xx_I2CCR_TXAK, I2CCCR);
-
-		data[i] = readb(I2CCDR);
-	}
-
-	return i;
-}
-
-int
-i2c_read (u8 dev, uint addr, int alen, u8 *data, int length)
-{
-	int i = 0;
-	u8 *a = (u8*)&addr;
-
-	if (i2c_wait4bus () < 0)
-		goto exit;
-
-	if (i2c_write_addr (dev, I2C_WRITE, 0) == 0)
-		goto exit;
-
-	if (__i2c_write (&a[4 - alen], alen) != alen)
-		goto exit;
-
-	if (i2c_write_addr (dev, I2C_READ, 1) == 0)
-		goto exit;
-
-	i = __i2c_read (data, length);
-
- exit:
-	writeb(MPC85xx_I2CCR_MEN, I2CCCR);
-
-	return !(i == length);
-}
-
-int
-i2c_write (u8 dev, uint addr, int alen, u8 *data, int length)
-{
-	int i = 0;
-	u8 *a = (u8*)&addr;
-
-	if (i2c_wait4bus () < 0)
-		goto exit;
-
-	if (i2c_write_addr (dev, I2C_WRITE, 0) == 0)
-		goto exit;
-
-	if (__i2c_write (&a[4 - alen], alen) != alen)
-		goto exit;
-
-	i = __i2c_write (data, length);
-
- exit:
-	writeb(MPC85xx_I2CCR_MEN, I2CCCR);
-
-	return !(i == length);
-}
-
-int i2c_probe (uchar chip)
-{
-	int tmp;
-
-	/*
-	 * Try to read the first location of the chip.  The underlying
-	 * driver doesn't appear to support sending just the chip address
-	 * and looking for an <ACK> back.
-	 */
-	udelay(10000);
-	return i2c_read (chip, 0, 1, (uchar *)&tmp, 1);
-}
-
-uchar i2c_reg_read (uchar i2c_addr, uchar reg)
-{
-	uchar buf[1];
-
-	i2c_read (i2c_addr, reg, 1, buf, 1);
-
-	return (buf[0]);
-}
-
-void i2c_reg_write (uchar i2c_addr, uchar reg, uchar val)
-{
-	i2c_write (i2c_addr, reg, 1, &val, 1);
-}
-
-#endif /* CONFIG_HARD_I2C */

drivers/fsl_i2c.c

@@ -18,11 +18,14 @@
 
 #include <common.h>
 
+#ifdef CONFIG_FSL_I2C
 #ifdef CONFIG_HARD_I2C
 
 #include <command.h>
+#include <i2c.h>		/* Functional interface */
+
 #include <asm/io.h>
-#include <asm/fsl_i2c.h>
+#include <asm/fsl_i2c.h>	/* HW definitions */
 
 #define I2C_TIMEOUT	(CFG_HZ / 4)
 #define I2C		((struct fsl_i2c *)(CFG_IMMR + CFG_I2C_OFFSET))
@@ -32,7 +35,7 @@ void
 i2c_init(int speed, int slaveadd)
 {
 	/* stop I2C controller */
-	writeb(0x0 , &I2C->cr);
+	writeb(0x0, &I2C->cr);
 
 	/* set clock */
 	writeb(0x3f, &I2C->fdr);
@@ -53,7 +56,7 @@ i2c_init(int speed, int slaveadd)
 static __inline__ int
 i2c_wait4bus(void)
 {
-	ulong timeval = get_timer (0);
+	ulong timeval = get_timer(0);
 
 	while (readb(&I2C->sr) & I2C_SR_MBB) {
 		if (get_timer(timeval) > I2C_TIMEOUT) {
@@ -235,3 +238,4 @@ i2c_reg_write(uchar i2c_addr, uchar reg, uchar val)
 }
 
 #endif /* CONFIG_HARD_I2C */
+#endif /* CONFIG_FSL_I2C */

include/configs/MPC8540ADS.h

@@ -312,12 +312,16 @@
 #define CFG_64BIT_VSPRINTF	1
 #define CFG_64BIT_STRTOUL	1
 
-/* I2C */
-#define  CONFIG_HARD_I2C		/* I2C with hardware support*/
+/*
+ * I2C
+ */
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C		/* I2C with hardware support*/
 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged */
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address */
 #define CFG_I2C_SLAVE		0x7F
 #define CFG_I2C_NOPROBES        {0x69}	/* Don't probe these addrs */
+#define CFG_I2C_OFFSET		0x3000
 
 /* RapidIO MMU */
 #define CFG_RIO_MEM_BASE	0xc0000000	/* base address */

include/configs/MPC8540EVAL.h

@@ -179,12 +179,16 @@
 #define CFG_PROMPT_HUSH_PS2 "> "
 #endif
 
-/* I2C */
-#define  CONFIG_HARD_I2C		/* I2C with hardware support*/
+/*
+ * I2C
+ */
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C		/* I2C with hardware support*/
 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged		*/
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
 #define CFG_I2C_SLAVE		0x7F
 #define CFG_I2C_NOPROBES        {0x69}	/* Don't probe these addrs */
+#define CFG_I2C_OFFSET		0x3000
 
 /* General PCI */
 #define CFG_PCI_MEM_BASE	0x80000000

include/configs/MPC8541CDS.h

@@ -320,13 +320,17 @@ extern unsigned long get_clock_freq(void);
 #define OF_TBCLK		(bd->bi_busfreq / 8)
 #define OF_STDOUT_PATH		"/soc8541@e0000000/serial@4600"
 
-/* I2C */
-#define CONFIG_HARD_I2C			/* I2C with hardware support */
+/*
+ * I2C
+ */
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C		/* I2C with hardware support*/
 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged */
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address */
 #define CFG_I2C_EEPROM_ADDR	0x57
 #define CFG_I2C_SLAVE		0x7F
 #define CFG_I2C_NOPROBES        {0x69}	/* Don't probe these addrs */
+#define CFG_I2C_OFFSET		0x3000
 
 /*
  * General PCI

include/configs/MPC8548CDS.h

@@ -326,13 +326,17 @@ extern unsigned long get_clock_freq(void);
 #define OF_TBCLK		(bd->bi_busfreq / 8)
 #define OF_STDOUT_PATH		"/soc8548@e0000000/serial@4600"
 
-/* I2C */
-#define CONFIG_HARD_I2C			/* I2C with hardware support */
+/*
+ * I2C
+ */
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C		/* I2C with hardware support*/
 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged */
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address */
 #define CFG_I2C_EEPROM_ADDR	0x57
 #define CFG_I2C_SLAVE		0x7F
 #define CFG_I2C_NOPROBES        {0x69}	/* Don't probe these addrs */
+#define CFG_I2C_OFFSET		0x3000
 
 /*
  * General PCI

include/configs/MPC8555CDS.h

@@ -320,13 +320,17 @@ extern unsigned long get_clock_freq(void);
 #define OF_TBCLK		(bd->bi_busfreq / 8)
 #define OF_STDOUT_PATH		"/soc8555@e0000000/serial@4600"
 
-/* I2C */
-#define CONFIG_HARD_I2C			/* I2C with hardware support */
+/*
+ * I2C
+ */
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C		/* I2C with hardware support*/
 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged */
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address */
 #define CFG_I2C_EEPROM_ADDR	0x57
 #define CFG_I2C_SLAVE		0x7F
 #define CFG_I2C_NOPROBES        {0x69}	/* Don't probe these addrs */
+#define CFG_I2C_OFFSET		0x3000
 
 /*
  * General PCI

include/configs/MPC8560ADS.h

@@ -302,12 +302,16 @@
 #define OF_TBCLK		(bd->bi_busfreq / 8)
 #define OF_STDOUT_PATH		"/soc8560@e0000000/serial@4500"
 
-/* I2C */
-#define  CONFIG_HARD_I2C		/* I2C with hardware support*/
+/*
+ * I2C
+ */
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C		/* I2C with hardware support*/
 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged */
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address */
 #define CFG_I2C_SLAVE		0x7F
 #define CFG_I2C_NOPROBES        {0x69}	/* Don't probe these addrs */
+#define CFG_I2C_OFFSET		0x3000
 
 /* RapidIO MMU */
 #define CFG_RIO_MEM_BASE	0xc0000000	/* base address */

include/configs/MPC8641HPCN.h

@@ -275,12 +275,13 @@
 /*
  * I2C
  */
-#define  CONFIG_HARD_I2C		/* I2C with hardware support*/
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C		/* I2C with hardware support*/
 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged */
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address */
 #define CFG_I2C_SLAVE		0x7F
-#define CFG_I2C_OFFSET		0x3100
 #define CFG_I2C_NOPROBES        {0x69}	/* Don't probe these addrs */
+#define CFG_I2C_OFFSET		0x3100
 
 /*
  * RapidIO MMU

include/configs/PM854.h

@@ -193,12 +193,16 @@
 #define CFG_PROMPT_HUSH_PS2 "> "
 #endif
 
-/* I2C */
-#define	 CONFIG_HARD_I2C		/* I2C with hardware support*/
+/*
+ * I2C
+ */
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C		/* I2C with hardware support*/
 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged */
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address */
 #define CFG_I2C_SLAVE		0x7F
 #define CFG_I2C_NOPROBES	{0x69}	/* Don't probe these addrs */
+#define CFG_I2C_OFFSET		0x3000
 
 /*
  * EEPROM configuration

include/configs/PM856.h

@@ -190,12 +190,16 @@
 #define CFG_PROMPT_HUSH_PS2 "> "
 #endif
 
-/* I2C */
-#define  CONFIG_HARD_I2C		/* I2C with hardware support*/
+/*
+ * I2C
+ */
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C		/* I2C with hardware support*/
 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged */
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address */
 #define CFG_I2C_SLAVE		0x7F
 #define CFG_I2C_NOPROBES        {0x69}	/* Don't probe these addrs */
+#define CFG_I2C_OFFSET		0x3000
 
 /*
  * EEPROM configuration

include/configs/SBC8540.h

@@ -214,12 +214,16 @@
 #define CFG_PROMPT_HUSH_PS2 "> "
 #endif
 
-/* I2C */
-#define	 CONFIG_HARD_I2C		/* I2C with hardware support*/
+/*
+ * I2C
+ */
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C		/* I2C with hardware support*/
 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged */
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
 #define CFG_I2C_SLAVE		0x7F
 #define CFG_I2C_NOPROBES	{0x69}	/* Don't probe these addrs */
+#define CFG_I2C_OFFSET		0x3000
 
 #define CFG_PCI_MEM_BASE	0xC0000000
 #define CFG_PCI_MEM_PHYS	0xC0000000

include/configs/TQM85xx.h

@@ -192,12 +192,17 @@
 #define CFG_PROMPT_HUSH_PS2 "> "
 #endif
 
-/* I2C */
+
+/*
+ * I2C
+ */
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
 #define CONFIG_HARD_I2C			/* I2C with hardware support	*/
 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged		*/
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
 #define CFG_I2C_SLAVE		0x7F
 #define CFG_I2C_NOPROBES	{0x48}	/* Don't probe these addrs	*/
+#define CFG_I2C_OFFSET		0x3000
 
 /* I2C RTC */
 #define CONFIG_RTC_DS1337		/* Use ds1337 rtc via i2c	*/

include/configs/sbc8560.h

@@ -197,12 +197,16 @@
 #define CFG_PROMPT_HUSH_PS2 "> "
 #endif
 
-/* I2C */
-#define	 CONFIG_HARD_I2C		/* I2C with hardware support*/
+/*
+ * I2C
+ */
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C		/* I2C with hardware support*/
 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged */
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
 #define CFG_I2C_SLAVE		0x7F
 #define CFG_I2C_NOPROBES	{0x69}	/* Don't probe these addrs */
+#define CFG_I2C_OFFSET		0x3000
 
 #define CFG_PCI_MEM_BASE	0xC0000000
 #define CFG_PCI_MEM_PHYS	0xC0000000

include/configs/stxgp3.h

@@ -172,8 +172,11 @@
 #define CFG_PROMPT_HUSH_PS2 "> "
 #endif
 
-/* I2C */
-#define  CONFIG_HARD_I2C    		/* I2C with hardware support*/
+/*
+ * I2C
+ */
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C		/* I2C with hardware support*/
 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged */
 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
 #define CFG_I2C_SLAVE		0x7F
@@ -183,6 +186,7 @@
 /* I did the 'if 0' so we could keep the syntax above if ever needed. */
 #undef CFG_I2C_NOPROBES
 #endif
+#define CFG_I2C_OFFSET		0x3000
 
 /* RapdIO Map configuration, mapped 1:1.
 */