armv8/fsl-lsch3: Support 256M mem split for MC & dbg-srvr

The agreed split of the top of memory is 256M for debug server and 256M
 for MC. This patch implements the split.

 In addition, the MC mem must be 512MB aligned, so the amount of memory
 to hide must be 512MB to achieve that alignment.

Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/board/freescale/ls2085a/ls2085a.c b/board/freescale/ls2085a/ls2085a.c
index e43dd4c..73c4410 100644
--- a/board/freescale/ls2085a/ls2085a.c
+++ b/board/freescale/ls2085a/ls2085a.c
@@ -80,7 +80,7 @@
 	dram_to_hide += mc_get_dram_block_size();
 #endif
 
-	return dram_to_hide;
+	return roundup(dram_to_hide, CONFIG_SYS_MEM_TOP_HIDE_MIN);
 }
 
 int board_eth_init(bd_t *bis)
diff --git a/board/freescale/ls2085aqds/ls2085aqds.c b/board/freescale/ls2085aqds/ls2085aqds.c
index 9b57799..c492c7e 100644
--- a/board/freescale/ls2085aqds/ls2085aqds.c
+++ b/board/freescale/ls2085aqds/ls2085aqds.c
@@ -215,7 +215,7 @@
 	dram_to_hide += mc_get_dram_block_size();
 #endif
 
-	return dram_to_hide;
+	return roundup(dram_to_hide, CONFIG_SYS_MEM_TOP_HIDE_MIN);
 }
 
 #ifdef CONFIG_FSL_MC_ENET
diff --git a/board/freescale/ls2085ardb/ls2085ardb.c b/board/freescale/ls2085ardb/ls2085ardb.c
index 15cb251..1f8cf8a 100644
--- a/board/freescale/ls2085ardb/ls2085ardb.c
+++ b/board/freescale/ls2085ardb/ls2085ardb.c
@@ -212,7 +212,7 @@
 	dram_to_hide += mc_get_dram_block_size();
 #endif
 
-	return dram_to_hide;
+	return roundup(dram_to_hide, CONFIG_SYS_MEM_TOP_HIDE_MIN);
 }
 
 #ifdef CONFIG_FSL_MC_ENET