[U-Boot] [PATCH 1/3] powerpc: updates for the keymile boards

Heiko Schocher hs at denx.de
Thu Jul 9 12:04:18 CEST 2009


- CONFIG_SYS_MAX_I2C_BUS changed to 1
  We use only one I2C hardwarecontroller on this boards, so
  change the CONFIG_SYS_MAX_I2C_BUS to 1.
- common: dont print errormsg if second IVM Block lacks.
- 82xx, mgcoge: fix double mtdpart entry in environment
- 82xx, mgcoge: activate on second Flash the second bank.
- common: CONFIG_ENV_SIZE 0x4000 for all keymile boards
- common: Change malloc size to 1MByte for all Keymile boards
    We need a bigger malloc area for the environment support (128k)
    on some Keymile boards (kmeter1) and the upcoming UBI support.
    Change it to 1MB for all Keymile boards to be on the save side.
    Also define CONFIG_SYS_64BIT_VSPRINTF which is needed for
    UBI/UBIFS support.
- Add UBI support to all Keymile boards
- change manner of writing "/localbus/ranges" node
    instead of writting the complete "/localbus/ranges" node
    before booting Linux, only update the ranges entries
    which gets dynamical detected (size of flashes).
    This is needed, because keymile adds in the DTS
    "/localbus/ranges" node entries, which u-boot must
    not overwrite/delete.
- kmeter, mgcoge: define 2 seperate regions needed for the Intel P30 chips
    The Intel P30 chip has 2 non-identical chips on
    one die, so we need to define 2 seperate regions
    that are scanned by physmap_of independantly.
- kmeter1: Add MTD concat support to Keymile boards
- 82xx, mgcoge: add "unlock=yes" to default environment
- added CONFIG_MTD_DEVICE to get in sync with mainline code

Signed-off-by: Heiko Schocher <hs at denx.de>
Signed-off-by: Stefan Roese <sr at denx.de>
---
 board/keymile/common/common.c    |   35 ++++++++++++++++++--
 board/keymile/common/common.h    |   10 ++++++
 board/keymile/km8xx/km8xx.c      |   42 ++++++++++++++++--------
 board/keymile/kmeter1/kmeter1.c  |   51 +++++++++++++++++++++++++++++
 board/keymile/mgcoge/mgcoge.c    |   67 +++++++++++++++++++++++++++-----------
 include/configs/keymile-common.h |   17 +++++++++-
 include/configs/km8xx.h          |    2 -
 include/configs/kmeter1.h        |    7 +---
 include/configs/mgcoge.h         |   24 +++++++------
 include/i2c.h                    |    2 +
 10 files changed, 202 insertions(+), 55 deletions(-)

diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c
index b2bd7fd..2594623 100644
--- a/board/keymile/common/common.c
+++ b/board/keymile/common/common.c
@@ -203,8 +203,9 @@ static int ivm_check_crc (unsigned char *buf, int block)
 	crceeprom = (buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 1] + \
 			buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN - 2] * 256);
 	if (crc != crceeprom) {
-		printf ("Error CRC Block: %d EEprom: calculated: %lx EEprom: %lx\n",
-			block, crc, crceeprom);
+		if (block == 0)
+			printf ("Error CRC Block: %d EEprom: calculated: \
+			%lx EEprom: %lx\n", block, crc, crceeprom);
 		return -1;
 	}
 	return 0;
@@ -287,7 +288,7 @@ int ivm_analyze_eeprom (unsigned char *buf, int len)
 	GET_STRING("IVM_CustomerProductID", IVM_POS_CUSTOMER_PROD_ID, 32)

 	if (ivm_check_crc (&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2], 2) != 0)
-		return -2;
+		return 0;
 	ivm_analyze_block2 (&buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2], CONFIG_SYS_IVM_EEPROM_PAGE_LEN);

 	return 0;
@@ -527,6 +528,34 @@ int fdt_set_node_and_value (void *blob,
 	}
 	return ret;
 }
+int fdt_get_node_and_value (void *blob,
+				char *nodename,
+				char *propname,
+				void **var)
+{
+	int len;
+	int nodeoffset = 0;
+
+	nodeoffset = fdt_path_offset (blob, nodename);
+	if (nodeoffset >= 0) {
+		*var = (void *)fdt_getprop (blob, nodeoffset, propname, &len);
+		if (len == 0) {
+			/* no value */
+			printf ("%s no value\n", __FUNCTION__);
+			return -1;
+		} else if (len > 0) {
+			return len;
+		} else {
+			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));
+		return -3;
+	}
+}
 #endif

 int ethernet_present (void)
diff --git a/board/keymile/common/common.h b/board/keymile/common/common.h
index d3d6814..a38c727 100644
--- a/board/keymile/common/common.h
+++ b/board/keymile/common/common.h
@@ -17,4 +17,14 @@ int ivm_read_eeprom (void);
 #ifdef CONFIG_KEYMILE_HDLC_ENET
 int keymile_hdlc_enet_initialize (bd_t *bis);
 #endif
+
+int fdt_set_node_and_value (void *blob,
+			char *nodename,
+			char *regname,
+			void *var,
+			int size);
+int fdt_get_node_and_value (void *blob,
+				char *nodename,
+				char *propname,
+				void **var);
 #endif /* __KEYMILE_COMMON_H */
diff --git a/board/keymile/km8xx/km8xx.c b/board/keymile/km8xx/km8xx.c
index 7c58179..ec883a4 100644
--- a/board/keymile/km8xx/km8xx.c
+++ b/board/keymile/km8xx/km8xx.c
@@ -159,12 +159,6 @@ int hush_init_var (void)
 }

 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
-extern int fdt_set_node_and_value (void *blob,
-				char *nodename,
-				char *regname,
-				void *var,
-				int size);
-
 /*
  * update "memory" property in the blob
  */
@@ -172,33 +166,53 @@ void ft_blob_update (void *blob, bd_t *bd)
 {
 	ulong brg_data[1] = {0};
 	ulong memory_data[2] = {0};
-	ulong flash_data[4] = {0};
+	ulong *flash_data = NULL;
 	ulong flash_reg[3] = {0};
-	uchar enetaddr[6];
+	flash_info_t	*info;
+	int	len;
+	int	i = 0;

 	memory_data[0] = cpu_to_be32 (bd->bi_memstart);
 	memory_data[1] = cpu_to_be32 (bd->bi_memsize);
 	fdt_set_node_and_value (blob, "/memory", "reg", memory_data,
 				sizeof (memory_data));

-	flash_data[2] = cpu_to_be32 (bd->bi_flashstart);
-	flash_data[3] = cpu_to_be32 (bd->bi_flashsize);
+	len = fdt_get_node_and_value (blob, "/localbus", "ranges",
+					(void *)&flash_data);
+
+	if (flash_data == NULL) {
+		printf ("%s: error /localbus/ranges entry\n", __FUNCTION__);
+		return;
+	}
+
+	/* update Flash addr, size */
+	while ( i < (len / 4)) {
+		switch (flash_data[i]) {
+		case 0:
+			info = flash_get_info(CONFIG_SYS_FLASH_BASE);
+			flash_data[i + 1] = 0;
+			flash_data[i + 2] = cpu_to_be32 (CONFIG_SYS_FLASH_BASE);
+			flash_data[i + 3] = cpu_to_be32 (info->size);
+			break;
+		default:
+			break;
+		}
+		i += 4;
+	}
 	fdt_set_node_and_value (blob, "/localbus", "ranges", flash_data,
-				sizeof (flash_data));
+				len);

 	flash_reg[2] = cpu_to_be32 (bd->bi_flashsize);
 	fdt_set_node_and_value (blob, "/localbus/flash at 0,0", "reg", flash_reg,
 				sizeof (flash_reg));
-
 	/* BRG */
 	brg_data[0] = cpu_to_be32 (bd->bi_busfreq);
 	fdt_set_node_and_value (blob, "/soc/cpm", "brg-frequency", brg_data,
 				sizeof (brg_data));

 	/* MAC adr */
-	eth_getenv_enetaddr("ethaddr", enetaddr);
 	fdt_set_node_and_value (blob, "/soc/cpm/ethernet", "mac-address",
-				enetaddr, sizeof (u8) * 6);
+				bd->bi_enetaddr, sizeof (u8) * 6);
 }

 void ft_board_setup(void *blob, bd_t *bd)
diff --git a/board/keymile/kmeter1/kmeter1.c b/board/keymile/kmeter1/kmeter1.c
index 3d1b941..ee2a362 100644
--- a/board/keymile/kmeter1/kmeter1.c
+++ b/board/keymile/kmeter1/kmeter1.c
@@ -187,9 +187,60 @@ int checkboard (void)
 }

 #if defined(CONFIG_OF_BOARD_SETUP)
+/*
+ * update "/localbus/ranges" property in the blob
+ */
+void ft_blob_update (void *blob, bd_t *bd)
+{
+	ulong	*flash_data = NULL;
+	flash_info_t	*info;
+	ulong	flash_reg[6] = {0};
+	int	len;
+	int	size = 0;
+	int	i = 0;
+
+	len = fdt_get_node_and_value (blob, "/localbus", "ranges",
+					(void *)&flash_data);
+
+	if (flash_data == NULL) {
+		printf ("%s: error /localbus/ranges entry\n", __FUNCTION__);
+		return;
+	}
+
+	/* update Flash addr, size */
+	while ( i < (len / 4)) {
+		switch (flash_data[i]) {
+		case 0:
+			info = flash_get_info(CONFIG_SYS_FLASH_BASE);
+			size = info->size;
+			info = flash_get_info(CONFIG_SYS_FLASH_BASE_1);
+			size += info->size;
+			flash_data[i + 1] = 0;
+			flash_data[i + 2] = cpu_to_be32 (CONFIG_SYS_FLASH_BASE);
+			flash_data[i + 3] = cpu_to_be32 (size);
+			break;
+		default:
+			break;
+		}
+		i += 4;
+	}
+	fdt_set_node_and_value (blob, "/localbus", "ranges", flash_data,
+				len);
+
+	info = flash_get_info(CONFIG_SYS_FLASH_BASE);
+	flash_reg[2] = cpu_to_be32 (size);
+	flash_reg[4] = flash_reg[2];
+	info = flash_get_info(CONFIG_SYS_FLASH_BASE_1);
+	flash_reg[5] = cpu_to_be32 (info->size);
+	fdt_set_node_and_value (blob, "/localbus/flash at f0000000,0", "reg", flash_reg,
+				sizeof (flash_reg));
+}
+
+
 void ft_board_setup (void *blob, bd_t *bd)
 {
 	ft_cpu_setup (blob, bd);
+	ft_blob_update (blob, bd);
 }
 #endif

diff --git a/board/keymile/mgcoge/mgcoge.c b/board/keymile/mgcoge/mgcoge.c
index 67722e7..d24a4b5 100644
--- a/board/keymile/mgcoge/mgcoge.c
+++ b/board/keymile/mgcoge/mgcoge.c
@@ -312,42 +312,71 @@ int hush_init_var (void)
 }

 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
-extern int fdt_set_node_and_value (void *blob,
-				char *nodename,
-				char *regname,
-				void *var,
-				int size);
-
 /*
  * update "memory" property in the blob
  */
 void ft_blob_update (void *blob, bd_t *bd)
 {
 	ulong memory_data[2] = {0};
-	ulong flash_data[8] = {0};
+	ulong *flash_data = NULL;
+	ulong	flash_reg[6] = {0};
 	flash_info_t	*info;
-	uchar enetaddr[6];
+	int	len;
+	int	size;
+	int	i = 0;

 	memory_data[0] = cpu_to_be32 (bd->bi_memstart);
 	memory_data[1] = cpu_to_be32 (bd->bi_memsize);
 	fdt_set_node_and_value (blob, "/memory", "reg", memory_data,
 				sizeof (memory_data));

+	len = fdt_get_node_and_value (blob, "/localbus", "ranges",
+					(void *)&flash_data);
+
+	if (flash_data == NULL) {
+		printf ("%s: error /localbus/ranges entry\n", __FUNCTION__);
+		return;
+	}
+
 	/* update Flash addr, size */
-	info = flash_get_info(CONFIG_SYS_FLASH_BASE);
-	flash_data[2] = cpu_to_be32 (CONFIG_SYS_FLASH_BASE);
-	flash_data[3] = cpu_to_be32 (info->size);
-	flash_data[4] = cpu_to_be32 (5);
-	flash_data[5] = cpu_to_be32 (0);
-	info = flash_get_info(CONFIG_SYS_FLASH_BASE_1);
-	flash_data[6] = cpu_to_be32 (CONFIG_SYS_FLASH_BASE_1);
-	flash_data[7] = cpu_to_be32 (info->size);
+	while ( i < (len / 4)) {
+		switch (flash_data[i]) {
+		case 0:
+			info = flash_get_info(CONFIG_SYS_FLASH_BASE);
+			flash_data[i + 1] = 0;
+			flash_data[i + 2] = cpu_to_be32 (CONFIG_SYS_FLASH_BASE);
+			flash_data[i + 3] = cpu_to_be32 (info->size);
+			break;
+		case 5:
+			info = flash_get_info(CONFIG_SYS_FLASH_BASE_1);
+			size = info->size;
+			info = flash_get_info(CONFIG_SYS_FLASH_BASE_2);
+			size += info->size;
+			flash_data[i + 1] = 0;
+			flash_data[i + 2] = cpu_to_be32 (CONFIG_SYS_FLASH_BASE_1);
+			flash_data[i + 3] = cpu_to_be32 (size);
+			break;
+		default:
+			break;
+		}
+		i += 4;
+	}
 	fdt_set_node_and_value (blob, "/localbus", "ranges", flash_data,
-				sizeof (flash_data));
+				len);
+
+	info = flash_get_info(CONFIG_SYS_FLASH_BASE_1);
+	flash_reg[0] = cpu_to_be32 (5);
+	flash_reg[2] = cpu_to_be32 (info->size);
+	flash_reg[3] = flash_reg[0];
+	flash_reg[4] = flash_reg[2];
+	info = flash_get_info(CONFIG_SYS_FLASH_BASE_2);
+	flash_reg[5] = cpu_to_be32 (info->size);
+	fdt_set_node_and_value (blob, "/localbus/flash at 5,0", "reg", flash_reg,
+				sizeof (flash_reg));
+
 	/* MAC addr */
-	eth_getenv_enetaddr("ethaddr", enetaddr);
 	fdt_set_node_and_value (blob, "/soc/cpm/ethernet", "mac-address",
-				enetaddr, sizeof (u8) * 6);
+				bd->bi_enetaddr, sizeof (u8) * 6);
 }

 void ft_board_setup (void *blob, bd_t *bd)
diff --git a/include/configs/keymile-common.h b/include/configs/keymile-common.h
index 0fcf692..0cc1b3b 100644
--- a/include/configs/keymile-common.h
+++ b/include/configs/keymile-common.h
@@ -45,6 +45,7 @@
 #define CONFIG_CMD_I2C
 #define CONFIG_CMD_JFFS2
 #define CONFIG_JFFS2_CMDLINE
+#define CONFIG_CMD_MTDPARTS

 #undef	CONFIG_WATCHDOG			/* disable platform specific watchdog */

@@ -97,7 +98,7 @@
 #define CONFIG_SYS_SLOT_ID_MASK		(0x3f)	/* mask for slot ID bits */

 #define CONFIG_I2C_MULTI_BUS	1
-#define CONFIG_SYS_MAX_I2C_BUS		2
+#define CONFIG_SYS_MAX_I2C_BUS		1
 #define CONFIG_SYS_I2C_INIT_BOARD	1
 #define CONFIG_I2C_MUX		1

@@ -122,6 +123,20 @@
 #define CONFIG_BOOTP_GATEWAY
 #define CONFIG_BOOTP_HOSTNAME

+#define CONFIG_ENV_SIZE		0x04000 /* Size of Environment */
+
+#define CONFIG_SYS_MALLOC_LEN	(1024 * 1024)	/* Reserved for malloc */
+
+#define CONFIG_SYS_64BIT_VSPRINTF	/* needed for UBI/UBIFS */
+
+/* UBI Support for all Keymile boards */
+#define CONFIG_CMD_UBI
+#define CONFIG_RBTREE
+#define CONFIG_MTD_PARTITIONS
+#define CONFIG_FLASH_CFI_MTD
+#define CONFIG_MTD_DEVICE
+#define CONFIG_MTD_CONCAT
+
 /* define this to use the keymile's io muxing feature */
 /*#define CONFIG_IO_MUXING */

diff --git a/include/configs/km8xx.h b/include/configs/km8xx.h
index c305b89..b5552d2 100644
--- a/include/configs/km8xx.h
+++ b/include/configs/km8xx.h
@@ -121,7 +121,6 @@
 #define CONFIG_SYS_FLASH_BASE		0xf0000000
 #define CONFIG_SYS_MONITOR_LEN		(384 << 10) /* 384 kB for Monitor */
 #define CONFIG_SYS_MONITOR_BASE	CONFIG_SYS_FLASH_BASE
-#define CONFIG_SYS_MALLOC_LEN		(256 << 10) /* 256 kB for malloc() */

 /*
  * For booting Linux, the board info and command line data
@@ -146,7 +145,6 @@

 #define CONFIG_ENV_IS_IN_FLASH	1
 #define CONFIG_ENV_OFFSET	CONFIG_SYS_MONITOR_LEN
-#define CONFIG_ENV_SIZE		0x04000 /* Total Size of Environment Sector */
 #define CONFIG_ENV_SECT_SIZE	0x20000 /* Total Size of Environment Sector */

 /* Address and size of Redundant Environment Sector	*/
diff --git a/include/configs/kmeter1.h b/include/configs/kmeter1.h
index 19da133..1735683 100644
--- a/include/configs/kmeter1.h
+++ b/include/configs/kmeter1.h
@@ -158,7 +158,6 @@
 #endif

 #define CONFIG_SYS_MONITOR_LEN		(384 * 1024) /* Reserve 256 kB for Mon */
-#define CONFIG_SYS_MALLOC_LEN		(128 * 1024) /* Reserved for malloc */

 /*
  * Initial RAM Base Address Setup
@@ -292,7 +291,6 @@
 #define CONFIG_ENV_IS_IN_FLASH	1
 #define CONFIG_ENV_ADDR		(CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)
 #define CONFIG_ENV_SECT_SIZE	0x20000 /* 128K(one sector) for env */
-#define CONFIG_ENV_SIZE		0x20000
 #define CONFIG_ENV_OFFSET	(CONFIG_SYS_MONITOR_LEN)

 /* Address and size of Redundant Environment Sector	*/
@@ -314,7 +312,6 @@
 #define CONFIG_SYS_I2C_SLAVE	0x7F
 #define CONFIG_SYS_I2C_OFFSET	0x3000
 #define CONFIG_I2C_MULTI_BUS	1
-#define CONFIG_SYS_MAX_I2C_BUS		2
 #define CONFIG_I2C_MUX		1

 /* EEprom support */
@@ -326,7 +323,7 @@
 #define CONFIG_SYS_DTT_MAX_TEMP	70
 #define CONFIG_SYS_DTT_LOW_TEMP	-30
 #define CONFIG_SYS_DTT_HYSTERESIS	3
-#define CONFIG_SYS_DTT_BUS_NUM		(2)
+#define CONFIG_SYS_DTT_BUS_NUM		(CONFIG_SYS_MAX_I2C_BUS)

 #if defined(CONFIG_PCI)
 #define CONFIG_CMD_PCI
@@ -433,7 +430,7 @@

 #define CONFIG_PRAM	512	/* protected RAM [KBytes] */

-#define MTDIDS_DEFAULT		"nor0=app"
+#define MTDIDS_DEFAULT		"nor2=app"
 #define MTDPARTS_DEFAULT \
 	"mtdparts=app:256k(u-boot),128k(env),128k(envred),"	\
 	"1536k(esw0),8704k(rootfs0),1536k(esw1),2432k(rootfs1),640k(var),768k(cfg)"
diff --git a/include/configs/mgcoge.h b/include/configs/mgcoge.h
index cc42101..ea14948 100644
--- a/include/configs/mgcoge.h
+++ b/include/configs/mgcoge.h
@@ -98,13 +98,11 @@
 	"addcon=setenv bootargs ${bootargs} "				\
 		"console=ttyCPM0,${baudrate}\0"				\
 	"mtdids=nor0=boot,nor1=app \0"					\
-	"mtdparts=mtdparts=boot:384k(u-boot),128k(env),128k(envred),"	\
-		"3456k(free);app:3m(esw0),10m(rootfs0),3m(esw1),"	\
-		"10m(rootfs1),1m(var),5m(cfg) \0"			\
 	"partition=nor1,5 \0"						\
 	"new_env=prot off FE060000 FE09FFFF; era FE060000 FE09FFFF \0" 	\
 	"EEprom_ivm=pca9544a:70:4 \0"					\
-	"mtdparts=" MK_STR(MTDPARTS_DEFAULT) "\0"				\
+	"mtdparts=" MK_STR(MTDPARTS_DEFAULT) "\0"			\
+	"unlock=yes\0"							\
 	""

 #define CONFIG_SYS_SDRAM_BASE		0x00000000
@@ -112,13 +110,17 @@
 #define CONFIG_SYS_FLASH_SIZE		32
 #define CONFIG_SYS_FLASH_CFI
 #define CONFIG_FLASH_CFI_DRIVER
-#define CONFIG_SYS_MAX_FLASH_BANKS	2	/* max num of flash banks	*/
+#define CONFIG_SYS_MAX_FLASH_BANKS	3	/* max num of flash banks	*/
 #define CONFIG_SYS_MAX_FLASH_SECT	512	/* max num of sects on one chip */

 #define CONFIG_SYS_FLASH_BASE_1	0x50000000
-#define CONFIG_SYS_FLASH_SIZE_1	64
+#define CONFIG_SYS_FLASH_SIZE_1	32
+#define CONFIG_SYS_FLASH_BASE_2	0x52000000
+#define CONFIG_SYS_FLASH_SIZE_2	32

-#define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE_1 }
+#define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE, \
+					CONFIG_SYS_FLASH_BASE_1, \
+					CONFIG_SYS_FLASH_BASE_2 }

 #define CONFIG_SYS_MONITOR_BASE	TEXT_BASE
 #if (CONFIG_SYS_MONITOR_BASE < CONFIG_SYS_FLASH_BASE)
@@ -193,7 +195,6 @@
 #define BOOTFLAG_COLD		0x01	/* Normal Power-On: Boot from FLASH */
 #define BOOTFLAG_WARM		0x02	/* Software reboot                  */

-#define CONFIG_SYS_MALLOC_LEN		(4096 << 10)	/* Reserve 4 MB for malloc()	*/
 #define CONFIG_SYS_BOOTMAPSZ		(8 << 20)	/* Initial Memory map for Linux */

 #define CONFIG_SYS_CACHELINE_SIZE	32	/* For MPC8260 CPUs */
@@ -333,9 +334,10 @@
 #define CONFIG_SYS_BR5_PRELIM	((CONFIG_SYS_FLASH_BASE_1 & BRx_BA_MSK) |\
 			 BRx_PS_16 | BRx_MS_GPCM_P | BRx_V)

-#define CONFIG_SYS_OR5_PRELIM	(MEG_TO_AM(CONFIG_SYS_FLASH_SIZE_1) |\
-			 ORxG_CSNT | ORxG_ACS_DIV2 |\
-			 ORxG_SCY_5_CLK | ORxG_TRLX )
+#define CONFIG_SYS_OR5_PRELIM	(MEG_TO_AM(CONFIG_SYS_FLASH_SIZE_1 + \
+				 CONFIG_SYS_FLASH_SIZE_2) |\
+				 ORxG_CSNT | ORxG_ACS_DIV2 |\
+				 ORxG_SCY_5_CLK | ORxG_TRLX )

 #define	CONFIG_SYS_RESET_ADDRESS 0xFDFFFFFC	/* "bad" address		*/

diff --git a/include/i2c.h b/include/i2c.h
index 668e754..b754769 100644
--- a/include/i2c.h
+++ b/include/i2c.h
@@ -47,7 +47,9 @@
 #define I2C_RXTX_LEN	128	/* maximum tx/rx buffer length */

 #if defined(CONFIG_I2C_MULTI_BUS)
+#if !defined(CONFIG_SYS_MAX_I2C_BUS)
 #define CONFIG_SYS_MAX_I2C_BUS		2
+#endif
 #define I2C_GET_BUS()		i2c_get_bus_num()
 #define I2C_SET_BUS(a)		i2c_set_bus_num(a)
 #else
-- 
1.6.0.6

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany


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