powerpc/85xx: Add support for booting from NAND on MPC8572DS

Mimic support that exists on MPC8536DS on the MPC8572DS to allow booting
from NAND.

Signed-off-by: Jin Qing <b24347@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/board/freescale/mpc8572ds/tlb.c b/board/freescale/mpc8572ds/tlb.c
index 6a2a0b5..575bdb5 100644
--- a/board/freescale/mpc8572ds/tlb.c
+++ b/board/freescale/mpc8572ds/tlb.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Freescale Semiconductor, Inc.
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
  *
  * (C) Copyright 2000
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
@@ -85,6 +85,18 @@
 	SET_TLB_ENTRY(1, PIXIS_BASE, PIXIS_BASE_PHYS,
 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 		      0, 8, BOOKE_PAGESZ_4K, 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, 9, 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, 10, BOOKE_PAGESZ_256K, 1),
+#endif
 };
 
 int num_tlb_entries = ARRAY_SIZE(tlb_table);