compulab: eeprom: select i2c bus when querying for board rev

Add support for selecting which eeprom is queried for board revision by
extending cl_eeprom_get_board_rev() to accept an i2c bus number.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>

board/compulab/cm_fx6/cm_fx6.c

@@ -689,7 +689,7 @@ int dram_init(void)
 
 u32 get_board_rev(void)
 {
-	return cl_eeprom_get_board_rev();
+	return cl_eeprom_get_board_rev(CONFIG_SYS_I2C_EEPROM_BUS);
 }
 
 static struct mxc_serial_platdata cm_fx6_mxc_serial_plat = {

board/compulab/cm_t35/cm_t35.c

@@ -104,7 +104,7 @@ int board_init(void)
  */
 u32 get_board_rev(void)
 {
-	return cl_eeprom_get_board_rev();
+	return cl_eeprom_get_board_rev(CONFIG_SYS_I2C_EEPROM_BUS);
 };
 
 int misc_init_r(void)

board/compulab/common/eeprom.c

@@ -121,7 +121,7 @@ static u32 board_rev;
  * Routine: cl_eeprom_get_board_rev
  * Description: read system revision from eeprom
  */
-u32 cl_eeprom_get_board_rev(void)
+u32 cl_eeprom_get_board_rev(uint eeprom_bus)
 {
 	char str[5]; /* Legacy representation can contain at most 4 digits */
 	uint offset = BOARD_REV_OFFSET_LEGACY;
@@ -129,7 +129,7 @@ u32 cl_eeprom_get_board_rev(void)
 	if (board_rev)
 		return board_rev;
 
-	if (cl_eeprom_setup(CONFIG_SYS_I2C_EEPROM_BUS))
+	if (cl_eeprom_setup(eeprom_bus))
 		return 0;
 
 	if (cl_eeprom_layout != LAYOUT_LEGACY)

board/compulab/common/eeprom.h

@@ -12,13 +12,13 @@
 
 #ifdef CONFIG_SYS_I2C
 int cl_eeprom_read_mac_addr(uchar *buf, uint eeprom_bus);
-u32 cl_eeprom_get_board_rev(void);
+u32 cl_eeprom_get_board_rev(uint eeprom_bus);
 #else
 static inline int cl_eeprom_read_mac_addr(uchar *buf, uint eeprom_bus)
 {
 	return 1;
 }
-static inline u32 cl_eeprom_get_board_rev(void)
+static inline u32 cl_eeprom_get_board_rev(uint eeprom_bus)
 {
 	return 0;
 }