twister: Let SPL load U-Boot from MMC

MMC is not initialized in SPL, so it cannot load u-boot.img
preventing boot from MMC.

Also driver specific functions are guarded with generic
configuration options which leads to build failures when device
driver is not enabled in config. Fix that by using driver
specific defines.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Stefano Babic <sbabic@denx.de>
diff --git a/board/technexion/twister/twister.c b/board/technexion/twister/twister.c
index 1166886..0590e5f 100644
--- a/board/technexion/twister/twister.c
+++ b/board/technexion/twister/twister.c
@@ -18,10 +18,8 @@
 #include <spl.h>
 #include <mmc.h>
 #include <asm/gpio.h>
-#ifdef CONFIG_USB_EHCI_HCD
 #include <usb.h>
 #include <asm/ehci-omap.h>
-#endif
 #include "twister.h"
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -45,7 +43,7 @@
 	XR16L2751_GPMC_CONFIG6,
 };
 
-#ifdef CONFIG_USB_EHCI_HCD
+#ifdef CONFIG_USB_EHCI_OMAP
 static struct omap_usbhs_board_data usbhs_bdata = {
 	.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
@@ -118,19 +116,20 @@
 
 int board_eth_init(bd_t *bis)
 {
+#ifdef CONFIG_DRIVER_TI_EMAC
 	davinci_emac_initialize();
-
+#endif
 	/* init cs for extern lan */
 	enable_gpmc_cs_config(gpmc_smc911, &gpmc_cfg->cs[5],
 		CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
-	if (smc911x_initialize(0, CONFIG_SMC911X_BASE) <= 0)
-		printf("\nError initializing SMC911x controlleri\n");
-
+#ifdef CONFIG_SMC911X
+	return smc911x_initialize(0, CONFIG_SMC911X_BASE);
+#else
 	return 0;
+#endif
 }
 
-#if defined(CONFIG_MMC_OMAP_HS) && \
-	!defined(CONFIG_SPL_BUILD)
+#if defined(CONFIG_MMC_OMAP_HS)
 int board_mmc_init(bd_t *bis)
 {
 	return omap_mmc_init(0, 0, 0, -1, -1);