omap5: Add minimal support for omap5430.

This patch adds the minimal support for OMAP5. The platform and machine
specific headers and sources updated for OMAP5430.

OMAP5430 is Texas Instrument's SOC based on ARM Cortex-A15 SMP architecture.
It's a dual core SOC with GIC used for interrupt handling and SCU for cache
coherency.

Also moved some part of code from the basic platform support that can be made
common for OMAP4/5. Rest is kept out seperately. The same approach is followed
for clocks and emif support in the subsequent patches.

Signed-off-by: sricharan <r.sricharan@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/board/ti/panda/panda.c b/board/ti/panda/panda.c
index 97320cb..b4271fb 100644
--- a/board/ti/panda/panda.c
+++ b/board/ti/panda/panda.c
@@ -65,6 +65,23 @@
 	return 0;
 }
 
+void set_muxconf_regs_essential(void)
+{
+	do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_essential,
+		   sizeof(core_padconf_array_essential) /
+		   sizeof(struct pad_conf_entry));
+
+	do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_essential,
+		   sizeof(wkup_padconf_array_essential) /
+		   sizeof(struct pad_conf_entry));
+
+	if (omap_revision() >= OMAP4460_ES1_0)
+		do_set_mux(CONTROL_PADCONF_WKUP,
+				 wkup_padconf_array_essential_4460,
+				 sizeof(wkup_padconf_array_essential_4460) /
+				 sizeof(struct pad_conf_entry));
+}
+
 void set_muxconf_regs_non_essential(void)
 {
 	do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_non_essential,
@@ -93,10 +110,18 @@
 				sizeof(struct pad_conf_entry));
 }
 
-#ifdef CONFIG_GENERIC_MMC
+#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
 int board_mmc_init(bd_t *bis)
 {
 	omap_mmc_init(0);
 	return 0;
 }
 #endif
+
+/*
+ * get_board_rev() - get board revision
+ */
+u32 get_board_rev(void)
+{
+	return 0x20;
+}