ppc/P1_P2_RDB: NAND Boot Support

NAND Boot support for P1 and P2 series RDB platforms.

This patch is derived from NAND Boot support on MPC8536DS.

Signed-off-by: Dipen Dudhat <dipen.dudhat@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/board/freescale/p1_p2_rdb/config.mk b/board/freescale/p1_p2_rdb/config.mk
index a56b536..17abcf8 100644
--- a/board/freescale/p1_p2_rdb/config.mk
+++ b/board/freescale/p1_p2_rdb/config.mk
@@ -24,6 +24,13 @@
 # p1_p2rdb board
 #
 
+ifndef NAND_SPL
+ifeq ($(CONFIG_MK_NAND), y)
+TEXT_BASE = $(CONFIG_RAMBOOT_TEXT_BASE)
+LDSCRIPT := $(TOPDIR)/cpu/$(CPU)/u-boot-nand.lds
+endif
+endif
+
 ifndef TEXT_BASE
 TEXT_BASE = 0xeff80000
 endif
diff --git a/board/freescale/p1_p2_rdb/tlb.c b/board/freescale/p1_p2_rdb/tlb.c
index cf9bffe..0009913 100644
--- a/board/freescale/p1_p2_rdb/tlb.c
+++ b/board/freescale/p1_p2_rdb/tlb.c
@@ -78,6 +78,16 @@
 			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 			0, 6, BOOKE_PAGESZ_1M, 1),
 
+#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L2_ADDR)
+	/* *I*G - L2SRAM */
+	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR, CONFIG_SYS_INIT_L2_ADDR_PHYS,
+			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+			0, 7, BOOKE_PAGESZ_256K, 1),
+	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR + 0x40000,
+			CONFIG_SYS_INIT_L2_ADDR_PHYS + 0x40000,
+			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+			0, 8, BOOKE_PAGESZ_256K, 1),
+#endif
 };
 
 int num_tlb_entries = ARRAY_SIZE(tlb_table);