powerpc/p2020: Move INIT_RAM_ADDR physical address higher for 36-bit for P2020DS

If 36-bit is enabled, move INIT_RAM_ADDR physical address higher
to free lowest 4GB address space.

Signed-off-by: York Sun <yorksun@freescale.com>

board/freescale/p2020ds/tlb.c

@@ -28,19 +28,19 @@
 
 struct fsl_e_tlb_entry tlb_table[] = {
 	/* TLB 0 - for temp stack in cache */
-	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR, CONFIG_SYS_INIT_RAM_ADDR,
+	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR, CONFIG_SYS_INIT_RAM_ADDR_PHYS,
 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
 		      0, 0, BOOKE_PAGESZ_4K, 0),
 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
-		      CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
+		      CONFIG_SYS_INIT_RAM_ADDR_PHYS + 4 * 1024,
 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
 		      0, 0, BOOKE_PAGESZ_4K, 0),
 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
-		      CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
+		      CONFIG_SYS_INIT_RAM_ADDR_PHYS + 8 * 1024,
 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
 		      0, 0, BOOKE_PAGESZ_4K, 0),
 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
-		      CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
+		      CONFIG_SYS_INIT_RAM_ADDR_PHYS + 12 * 1024,
 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
 		      0, 0, BOOKE_PAGESZ_4K, 0),
 

include/configs/P2020DS.h

@@ -249,6 +249,18 @@
 
 #define CONFIG_SYS_INIT_RAM_LOCK	1
 #define CONFIG_SYS_INIT_RAM_ADDR	0xffd00000	/* Initial L1 address */
+#ifdef CONFIG_PHYS_64BIT
+#define CONFIG_SYS_INIT_RAM_ADDR_PHYS_HIGH 0xf
+#define CONFIG_SYS_INIT_RAM_ADDR_PHYS_LOW CONFIG_SYS_INIT_RAM_ADDR
+/* The assembler doesn't like typecast */
+#define CONFIG_SYS_INIT_RAM_ADDR_PHYS \
+	((CONFIG_SYS_INIT_RAM_ADDR_PHYS_HIGH * 1ull << 32) | \
+	  CONFIG_SYS_INIT_RAM_ADDR_PHYS_LOW)
+#else
+#define CONFIG_SYS_INIT_RAM_ADDR_PHYS	CONFIG_SYS_INIT_RAM_ADDR /* Initial L1 address */
+#define CONFIG_SYS_INIT_RAM_ADDR_PHYS_HIGH 0
+#define CONFIG_SYS_INIT_RAM_ADDR_PHYS_LOW CONFIG_SYS_INIT_RAM_ADDR_PHYS
+#endif
 #define CONFIG_SYS_INIT_RAM_END	0x00004000	/* End of used area in RAM */
 
 #define CONFIG_SYS_GBL_DATA_SIZE	128	/* num bytes initial data */