board/BuR/common: move I2C initialization from common part to board-specific

At this time I2C and responsible pin-mux is setup during PMIC initialziation
within common.c, this is possible because today PMIC is always connected on
I2C0.

In Future this will be changed, PMIC isn't anymore connected to bus0 in call
cases.

So we do following:
- rename enable_i2c_pin_mux0 to enable_i2c_pin_mux to be generic for enabling
  pin-mux on different or more busses.
- move the call to i2c_pin_mux and i2c_init from common.c to the specific
  board.c

Signed-off-by: Hannes Petermaier <hannes.petermaier@br-automation.com>
Signed-off-by: Hannes Petermaier <oe5hpm@oevsv.at>

board/BuR/common/bur_common.h

@@ -19,7 +19,7 @@ void br_summaryscreen(void);
 void blink(u32 blinks, u32 intervall, u32 pin);
 void pmicsetup(u32 mpupll);
 void enable_uart0_pin_mux(void);
-void enable_i2c0_pin_mux(void);
+void enable_i2c_pin_mux(void);
 void enable_board_pin_mux(void);
 int board_eth_init(bd_t *bis);
 

board/BuR/common/common.c

@@ -461,10 +461,6 @@ void pmicsetup(u32 mpupll)
 	int mpu_vdd;
 	int usb_cur_lim;
 
-	/* setup I2C */
-	enable_i2c0_pin_mux();
-	i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
-
 	if (i2c_probe(TPS65217_CHIP_PM)) {
 		puts("PMIC (0x24) not found! skip further initalization.\n");
 		return;

board/BuR/kwb/board.c

@@ -124,7 +124,8 @@ void am33xx_spl_board_init(void)
 	gpio_direction_output(LCD_PWR, 0);
 
 	/* setup I2C */
-	enable_i2c0_pin_mux();
+	enable_i2c_pin_mux();
+	i2c_set_bus_num(0);
 	i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
 
 	/* power-ON  3V3 via Resetcontroller */

board/BuR/kwb/mux.c

@@ -180,7 +180,7 @@ void enable_uart0_pin_mux(void)
 	configure_module_pin_mux(uart0_pin_mux);
 }
 
-void enable_i2c0_pin_mux(void)
+void enable_i2c_pin_mux(void)
 {
 	configure_module_pin_mux(i2c0_pin_mux);
 }

board/BuR/tseries/board.c

@@ -123,6 +123,10 @@ void am33xx_spl_board_init(void)
 	/* setup LCD-Pixel Clock */
 	writel(0x2, &cmdpll->clklcdcpixelclk);	/* clock comes from perPLL M2 */
 
+	/* setup I2C */
+	enable_i2c_pin_mux();
+	i2c_set_bus_num(0);
+	i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
 	pmicsetup(0);
 }
 

board/BuR/tseries/mux.c

@@ -226,7 +226,7 @@ void enable_uart0_pin_mux(void)
 	configure_module_pin_mux(uart0_pin_mux);
 }
 
-void enable_i2c0_pin_mux(void)
+void enable_i2c_pin_mux(void)
 {
 	configure_module_pin_mux(i2c0_pin_mux);
 }