Convert CONFIG_SYS_I2C_BUS_MAX to Kconfig

This converts the following to Kconfig:
   CONFIG_SYS_I2C_BUS_MAX

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
[trini: Fix AM43XX drop AM44XX]
Signed-off-by: Tom Rini <trini@konsulko.com>

arch/arm/include/asm/arch-am33xx/i2c.h

@@ -10,7 +10,6 @@
 #define  I2C_BASE1		0x44E0B000
 #define  I2C_BASE2		0x4802A000
 #define  I2C_BASE3		0x4819C000
-#define	 CONFIG_SYS_I2C_BUS_MAX		3
 
 #define I2C_DEFAULT_BASE		I2C_BASE1
 

arch/arm/include/asm/arch-omap3/i2c.h

@@ -7,7 +7,6 @@
 #ifndef _OMAP3_I2C_H_
 #define _OMAP3_I2C_H_
 
-#define CONFIG_SYS_I2C_BUS_MAX	3
 #define I2C_DEFAULT_BASE	I2C_BASE1
 
 struct i2c {

arch/arm/include/asm/arch-omap4/i2c.h

@@ -7,7 +7,6 @@
 #ifndef _OMAP4_I2C_H_
 #define _OMAP4_I2C_H_
 
-#define CONFIG_SYS_I2C_BUS_MAX	4
 #define I2C_DEFAULT_BASE	I2C_BASE1
 
 struct i2c {

arch/arm/include/asm/arch-omap5/i2c.h

@@ -7,7 +7,6 @@
 #ifndef _OMAP5_I2C_H_
 #define _OMAP5_I2C_H_
 
-#define CONFIG_SYS_I2C_BUS_MAX	5
 #define I2C_DEFAULT_BASE	I2C_BASE1
 
 struct i2c {

drivers/i2c/Kconfig

@@ -227,6 +227,16 @@ config TEGRA186_BPMP_I2C
 	  by the BPMP, and can only be accessed by the main CPU via IPC
 	  requests to the BPMP. This driver covers the latter case.
 
+config SYS_I2C_BUS_MAX
+	int "Max I2C busses"
+	depends on ARCH_KEYSTONE || ARCH_OMAP2PLUS || ARCH_SOCFPGA
+	default 2 if TI816X
+	default 3 if OMAP34XX || AM33XX || AM43XX || ARCH_KEYSTONE
+	default 4 if ARCH_SOCFPGA || OMAP44XX || TI814X
+	default 5 if OMAP54XX
+	help
+	  Define the maximum number of available I2C buses.
+
 source "drivers/i2c/muxes/Kconfig"
 
 endmenu

include/configs/socfpga_common.h

@@ -156,7 +156,6 @@
  * I2C support
  */
 #define CONFIG_SYS_I2C
-#define CONFIG_SYS_I2C_BUS_MAX		4
 #define CONFIG_SYS_I2C_BASE		SOCFPGA_I2C0_ADDRESS
 #define CONFIG_SYS_I2C_BASE1		SOCFPGA_I2C1_ADDRESS
 #define CONFIG_SYS_I2C_BASE2		SOCFPGA_I2C2_ADDRESS

include/configs/ti_armv7_keystone2.h

@@ -160,7 +160,6 @@
 #define CONFIG_SYS_DAVINCI_I2C_SLAVE1	0x10 /* SMBus host address */
 #define CONFIG_SYS_DAVINCI_I2C_SPEED2	100000
 #define CONFIG_SYS_DAVINCI_I2C_SLAVE2	0x10 /* SMBus host address */
-#define CONFIG_SYS_I2C_BUS_MAX			3
 
 /* EEPROM definitions */
 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN		2