Add I2C support to TQM8540 and TQM8560 boards (EEPROM, RTC, LM75-DTT).

Removed CFG_CMD_DISPLAY from default commands.
Fixed compiler warning in net.c.
Patch by Stefan Roese, 31 Aug 2005

CHANGELOG

@@ -2,6 +2,11 @@
 Changes for U-Boot 1.1.4:
 ======================================================================
 
+* Add I2C support to TQM8540 and TQM8560 boards (EEPROM, RTC, LM75-DTT).
+  Removed CFG_CMD_DISPLAY from default commands.
+  Fixed compiler warning in net.c.
+  Patch by Stefan Roese, 31 Aug 2005
+
 * Fix problems with ld version 2.16 (dot outside sections problem)
   Pointed out by Gerhard Jaeger, 31 Aug 2005;
   cf. http://sourceware.org/ml/binutils/2005-08/msg00412.html

MAKEALL

@@ -126,6 +126,7 @@ LIST_85xx="	\
 	MPC8540ADS	MPC8540EVAL	MPC8541CDS	MPC8548CDS	\
 	MPC8555CDS	MPC8560ADS	PM854		PM856		\
 	sbc8540		sbc8560		stxgp3		TQM8540		\
+	TQM8560								\
 "
 
 #########################################################################

board/tqm8540/tqm8540.c

@@ -74,15 +74,26 @@ long int initdram (int board_type)
 
 #if defined(CONFIG_DDR_DLL)
 	{
-		volatile ccsr_gur_t *gur = &immap->im_gur;
-		uint temp_ddrdll = 0;
+		volatile ccsr_gur_t *gur= &immap->im_gur;
+		int i,x;
+
+		x = 10;
 
 		/*
 		 * Work around to stabilize DDR DLL
 		 */
-		temp_ddrdll = gur->ddrdllcr;
-		gur->ddrdllcr = ((temp_ddrdll & 0xff) << 16) | 0x80000000;
-		asm ("sync;isync;msync");
+		gur->ddrdllcr = 0x81000000;
+		asm("sync;isync;msync");
+		udelay (200);
+		while (gur->ddrdllcr != 0x81000100) {
+			gur->devdisr = gur->devdisr | 0x00010000;
+			asm("sync;isync;msync");
+			for (i=0; i<x; i++)
+				;
+			gur->devdisr = gur->devdisr & 0xfff7ffff;
+			asm("sync;isync;msync");
+			x++;
+		}
 	}
 #endif
 

board/tqm8560/tqm8560.c

@@ -229,15 +229,26 @@ long int initdram (int board_type)
 
 #if defined(CONFIG_DDR_DLL)
 	{
-		volatile ccsr_gur_t *gur = &immap->im_gur;
-		uint temp_ddrdll = 0;
+		volatile ccsr_gur_t *gur= &immap->im_gur;
+		int i,x;
+
+		x = 10;
 
 		/*
 		 * Work around to stabilize DDR DLL
 		 */
-		temp_ddrdll = gur->ddrdllcr;
-		gur->ddrdllcr = ((temp_ddrdll & 0xff) << 16) | 0x80000000;
-		asm ("sync;isync;msync");
+		gur->ddrdllcr = 0x81000000;
+		asm("sync;isync;msync");
+		udelay (200);
+		while (gur->ddrdllcr != 0x81000100) {
+			gur->devdisr = gur->devdisr | 0x00010000;
+			asm("sync;isync;msync");
+			for (i=0; i<x; i++)
+				;
+			gur->devdisr = gur->devdisr & 0xfff7ffff;
+			asm("sync;isync;msync");
+			x++;
+		}
 	}
 #endif
 

include/cmd_confdefs.h

@@ -109,6 +109,7 @@
 			CFG_CMD_DATE	| \
 			CFG_CMD_DHCP	| \
 			CFG_CMD_DIAG	| \
+			CFG_CMD_DISPLAY	| \
 			CFG_CMD_DOC	| \
 			CFG_CMD_DTT	| \
 			CFG_CMD_ECHO	| \

include/configs/TQM8540.h

@@ -230,11 +230,33 @@
 #endif
 
 /* I2C */
-#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 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_NOPROBES	{0x48}	/* Don't probe these addrs	*/
+
+/* I2C RTC */
+#define CONFIG_RTC_DS1337		/* Use ds1337 rtc via i2c	*/
+#define CFG_I2C_RTC_ADDR	0x68	/* at address 0x68		*/
+
+/* I2C EEPROM */
+/*
+ * EEPROM configuration for onboard EEPROM M24C32 (M24C64 should work also).
+ */
+#define CFG_I2C_EEPROM_ADDR		0x50	/* 1010000x		*/
+#define CFG_I2C_EEPROM_ADDR_LEN		2
+#define CFG_EEPROM_PAGE_WRITE_BITS	5	/* =32 Bytes per write	*/
+#define CFG_EEPROM_PAGE_WRITE_ENABLE
+#define CFG_EEPROM_PAGE_WRITE_DELAY_MS	20
+#define CFG_I2C_MULTI_EEPROMS		1       /* more than one eeprom */
+
+/* I2C SYSMON (LM75) */
+#define CONFIG_DTT_LM75		1		/* ON Semi's LM75	*/
+#define CONFIG_DTT_SENSORS	{0}		/* Sensor addresses	*/
+#define CFG_DTT_MAX_TEMP	70
+#define CFG_DTT_LOW_TEMP	-30
+#define CFG_DTT_HYSTERESIS	3
 
 /* RapidIO MMU */
 #define CFG_RIO_MEM_BASE	0xc0000000	/* base address */
@@ -301,7 +323,6 @@
 
 #endif	/* CONFIG_TSEC_ENET */
 
-
 /*
  * Environment
  */
@@ -342,6 +363,9 @@
 #define CONFIG_COMMANDS        (CONFIG_CMD_PRIV	| \
 				ADD_PCI_CMD	| \
 				CFG_CMD_I2C	| \
+				CFG_CMD_DATE	| \
+				CFG_CMD_EEPROM	| \
+				CFG_CMD_DTT	| \
 				CFG_CMD_PING	)
 #include <cmd_confdefs.h>
 
@@ -426,6 +450,11 @@
 	"bootfile=/tftpboot/tqm8540/uImage\0"				\
 	"kernel_addr=FE000000\0"					\
 	"ramdisk_addr=FE100000\0"					\
+	"load=tftp 100000 /tftpboot/tqm8540/u-boot.bin\0"		\
+	"update=protect off fffc0000 ffffffff;era fffc0000 ffffffff;"	\
+		"cp.b 100000 fffc0000 40000;"			        \
+		"setenv filesize;saveenv\0"				\
+	"upd=run load;run update\0"					\
 	""
 #define CONFIG_BOOTCOMMAND	"run flash_self"
 

include/configs/TQM8560.h

@@ -38,6 +38,7 @@
 #define CONFIG_BOOKE		1	/* BOOKE */
 #define CONFIG_E500		1	/* BOOKE e500 family */
 #define CONFIG_MPC85xx		1	/* MPC8540/MPC8560 */
+#define CONFIG_CPM2		1	/* has CPM2 */
 #define CONFIG_MPC8560		1	/* MPC8560 specific */
 #define CONFIG_TQM8560		1	/* TQM8560 board specific */
 
@@ -226,11 +227,33 @@
 #endif
 
 /* I2C */
-#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 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_NOPROBES	{0x48}	/* Don't probe these addrs	*/
+
+/* I2C RTC */
+#define CONFIG_RTC_DS1337		/* Use ds1337 rtc via i2c	*/
+#define CFG_I2C_RTC_ADDR	0x68	/* at address 0x68		*/
+
+/* I2C EEPROM */
+/*
+ * EEPROM configuration for onboard EEPROM M24C32 (M24C64 should work also).
+ */
+#define CFG_I2C_EEPROM_ADDR		0x50	/* 1010000x		*/
+#define CFG_I2C_EEPROM_ADDR_LEN		2
+#define CFG_EEPROM_PAGE_WRITE_BITS	5	/* =32 Bytes per write	*/
+#define CFG_EEPROM_PAGE_WRITE_ENABLE
+#define CFG_EEPROM_PAGE_WRITE_DELAY_MS	20
+#define CFG_I2C_MULTI_EEPROMS		1       /* more than one eeprom */
+
+/* I2C SYSMON (LM75) */
+#define CONFIG_DTT_LM75		1		/* ON Semi's LM75	*/
+#define CONFIG_DTT_SENSORS	{0}		/* Sensor addresses	*/
+#define CFG_DTT_MAX_TEMP	70
+#define CFG_DTT_LOW_TEMP	-30
+#define CFG_DTT_HYSTERESIS	3
 
 /* RapidIO MMU */
 #define CFG_RIO_MEM_BASE	0xc0000000	/* base address */
@@ -331,6 +354,9 @@
 #define CONFIG_COMMANDS        (CONFIG_CMD_PRIV	| \
 				ADD_PCI_CMD	| \
 				CFG_CMD_I2C	| \
+				CFG_CMD_DATE	| \
+				CFG_CMD_EEPROM	| \
+				CFG_CMD_DTT	| \
 				CFG_CMD_PING	)
 #include <cmd_confdefs.h>
 
@@ -415,6 +441,11 @@
 	"bootfile=/tftpboot/tqm8560/uImage\0"				\
 	"kernel_addr=FE000000\0"					\
 	"ramdisk_addr=FE100000\0"					\
+	"load=tftp 100000 /tftpboot/tqm8560/u-boot.bin\0"		\
+	"update=protect off fffc0000 ffffffff;era fffc0000 ffffffff;"	\
+		"cp.b 100000 fffc0000 40000;"			        \
+		"setenv filesize;saveenv\0"				\
+	"upd=run load;run update\0"					\
 	""
 #define CONFIG_BOOTCOMMAND	"run flash_self"
 

net/net.c

@@ -1574,7 +1574,7 @@ unsigned
 NetCksum(uchar * ptr, int len)
 {
 	ulong	xsum;
-	ushort *p = ptr;
+	ushort *p = (ushort *)ptr;
 
 	xsum = 0;
 	while (len-- > 0)