engicam: Move uart mux init to SPL

Since, u-boot handle fdt through uart so move the UART code
to SPL instead make it to global area.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/board/engicam/isiotmx6ul/isiotmx6ul.c b/board/engicam/isiotmx6ul/isiotmx6ul.c
index 5d1c693..008a7ae 100644
--- a/board/engicam/isiotmx6ul/isiotmx6ul.c
+++ b/board/engicam/isiotmx6ul/isiotmx6ul.c
@@ -22,22 +22,6 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE | \
-			PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
-			PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
-
-static iomux_v3_cfg_t const uart1_pads[] = {
-	MX6_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
-	MX6_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
-};
-
-int board_early_init_f(void)
-{
-	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
-
-	return 0;
-}
-
 #ifdef CONFIG_NAND_MXS
 
 #define GPMI_PAD_CTRL0		(PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_100K_UP)
@@ -185,6 +169,15 @@
 #include <asm/arch/crm_regs.h>
 #include <asm/arch/mx6-ddr.h>
 
+#define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE | \
+			PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
+			PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+static iomux_v3_cfg_t const uart1_pads[] = {
+	MX6_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
+	MX6_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
 /* MMC board initialization is needed till adding DM support in SPL */
 #if defined(CONFIG_FSL_ESDHC) && !defined(CONFIG_DM_MMC)
 #include <mmc.h>
@@ -402,7 +395,7 @@
 	ccgr_init();
 
 	/* iomux and setup of i2c */
-	board_early_init_f();
+	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
 
 	/* setup GP timer */
 	timer_init();