Rename CONFIG_PBLRCW_CONFIG and CONFIG_PBLRCW_CONFIG.
Also add their details in README.
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
                -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
 
 $(obj)u-boot.pbl:      $(obj)u-boot.bin
-               $(obj)tools/mkimage -n $(CONFIG_PBLRCW_CONFIG) \
-               -R $(CONFIG_PBLPBI_CONFIG) -T pblimage \
+               $(obj)tools/mkimage -n $(CONFIG_SYS_FSL_PBL_RCW) \
+               -R $(CONFIG_SYS_FSL_PBL_PBI) -T pblimage \
                -d $< $@
 
 $(obj)u-boot.sha1:     $(obj)u-boot.bin
 
                Board config to use DDR3. It can be enabled for SoCs with
                Freescale DDR3 controllers.
 
+               CONFIG_SYS_FSL_PBL_PBI
+               It enables addition of RCW (Power on reset configuration) in built image.
+               Please refer doc/README.pblimage for more details
+
+               CONFIG_SYS_FSL_PBL_RCW
+               It adds PBI(pre-boot instructions) commands in u-boot build image.
+               PBI commands can be used to configure SoC before it starts the execution.
+               Please refer doc/README.pblimage for more details
+
 - Intel Monahans options:
                CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO
 
 
 #ifdef CONFIG_RAMBOOT_PBL
 #define CONFIG_RAMBOOT_TEXT_BASE       CONFIG_SYS_TEXT_BASE
 #define CONFIG_RESET_VECTOR_ADDRESS    0xfffffffc
-#define CONFIG_PBLPBI_CONFIG $(SRCTREE)/board/freescale/b4860qds/b4_pbi.cfg
-#define CONFIG_PBLRCW_CONFIG $(SRCTREE)/board/freescale/b4860qds/b4_rcw.cfg
+#define CONFIG_SYS_FSL_PBL_PBI $(SRCTREE)/board/freescale/b4860qds/b4_pbi.cfg
+#define CONFIG_SYS_FSL_PBL_RCW $(SRCTREE)/board/freescale/b4860qds/b4_rcw.cfg
 #endif
 
 #ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE
 
 #ifdef CONFIG_RAMBOOT_PBL
 #define CONFIG_RAMBOOT_TEXT_BASE       CONFIG_SYS_TEXT_BASE
 #define CONFIG_RESET_VECTOR_ADDRESS    0xfffffffc
-#define CONFIG_PBLPBI_CONFIG $(SRCTREE)/board/freescale/corenet_ds/pbi.cfg
-#define CONFIG_PBLRCW_CONFIG $(SRCTREE)/board/freescale/corenet_ds/rcw_p2041rdb.cfg
+#define CONFIG_SYS_FSL_PBL_PBI $(SRCTREE)/board/freescale/corenet_ds/pbi.cfg
+#define CONFIG_SYS_FSL_PBL_RCW \
+                       $(SRCTREE)/board/freescale/corenet_ds/rcw_p2041rdb.cfg
 #endif
 
 #ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE
 
 #ifdef CONFIG_RAMBOOT_PBL
 #define CONFIG_RAMBOOT_TEXT_BASE       CONFIG_SYS_TEXT_BASE
 #define CONFIG_RESET_VECTOR_ADDRESS    0xfffffffc
-#define CONFIG_PBLPBI_CONFIG $(SRCTREE)/board/freescale/t1040qds/t1040_pbi.cfg
-#define CONFIG_PBLRCW_CONFIG $(SRCTREE)/board/freescale/t1040qds/t1040_rcw.cfg
+#define CONFIG_SYS_FSL_PBL_PBI $(SRCTREE)/board/freescale/t1040qds/t1040_pbi.cfg
+#define CONFIG_SYS_FSL_PBL_RCW $(SRCTREE)/board/freescale/t1040qds/t1040_rcw.cfg
 #endif
 
 /* High Level Configuration Options */
 
 #ifdef CONFIG_RAMBOOT_PBL
 #define CONFIG_RAMBOOT_TEXT_BASE       CONFIG_SYS_TEXT_BASE
 #define CONFIG_RESET_VECTOR_ADDRESS    0xfffffffc
-#define CONFIG_PBLPBI_CONFIG $(SRCTREE)/board/freescale/t2080qds/t2080_pbi.cfg
-#define CONFIG_PBLRCW_CONFIG $(SRCTREE)/board/freescale/t2080qds/t2080_rcw.cfg
+#define CONFIG_SYS_FSL_PBL_PBI $(SRCTREE)/board/freescale/t2080qds/t2080_pbi.cfg
+#define CONFIG_SYS_FSL_PBL_RCW $(SRCTREE)/board/freescale/t2080qds/t2080_rcw.cfg
 #endif
 
 #define CONFIG_SRIO_PCIE_BOOT_MASTER
 
 #ifdef CONFIG_RAMBOOT_PBL
 #define CONFIG_RAMBOOT_TEXT_BASE       CONFIG_SYS_TEXT_BASE
 #define CONFIG_RESET_VECTOR_ADDRESS    0xfffffffc
-#define CONFIG_PBLPBI_CONFIG $(SRCTREE)/board/freescale/t4qds/t4_pbi.cfg
-#define CONFIG_PBLRCW_CONFIG $(SRCTREE)/board/freescale/t4qds/t4_rcw.cfg
+#define CONFIG_SYS_FSL_PBL_PBI $(SRCTREE)/board/freescale/t4qds/t4_pbi.cfg
+#define CONFIG_SYS_FSL_PBL_RCW $(SRCTREE)/board/freescale/t4qds/t4_rcw.cfg
 #endif
 
 #ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE
 
 #ifdef CONFIG_RAMBOOT_PBL
 #define CONFIG_RAMBOOT_TEXT_BASE       CONFIG_SYS_TEXT_BASE
 #define CONFIG_RESET_VECTOR_ADDRESS    0xfffffffc
-#define CONFIG_PBLPBI_CONFIG $(SRCTREE)/board/freescale/corenet_ds/pbi.cfg
+#define CONFIG_SYS_FSL_PBL_PBI $(SRCTREE)/board/freescale/corenet_ds/pbi.cfg
 #if defined(CONFIG_P3041DS)
-#define CONFIG_PBLRCW_CONFIG $(SRCTREE)/board/freescale/corenet_ds/rcw_p3041ds.cfg
+#define CONFIG_SYS_FSL_PBL_RCW \
+                       $(SRCTREE)/board/freescale/corenet_ds/rcw_p3041ds.cfg
 #elif defined(CONFIG_P4080DS)
-#define CONFIG_PBLRCW_CONFIG $(SRCTREE)/board/freescale/corenet_ds/rcw_p4080ds.cfg
+#define CONFIG_SYS_FSL_PBL_RCW \
+                       $(SRCTREE)/board/freescale/corenet_ds/rcw_p4080ds.cfg
 #elif defined(CONFIG_P5020DS)
-#define CONFIG_PBLRCW_CONFIG $(SRCTREE)/board/freescale/corenet_ds/rcw_p5020ds.cfg
+#define CONFIG_SYS_FSL_PBL_RCW \
+                       $(SRCTREE)/board/freescale/corenet_ds/rcw_p5020ds.cfg
 #elif defined(CONFIG_P5040DS)
-#define CONFIG_PBLRCW_CONFIG $(SRCTREE)/board/freescale/corenet_ds/rcw_p5040ds.cfg
+#define CONFIG_SYS_FSL_PBL_RCW \
+                       $(SRCTREE)/board/freescale/corenet_ds/rcw_p5040ds.cfg
 #endif
 #endif
 
 
 #define CONFIG_RAMBOOT_PBL
 #define CONFIG_RAMBOOT_TEXT_BASE       CONFIG_SYS_TEXT_BASE
 #define CONFIG_RESET_VECTOR_ADDRESS    0xfffffffc
-#define CONFIG_PBLPBI_CONFIG $(SRCTREE)/board/keymile/kmp204x/pbi.cfg
-#define CONFIG_PBLRCW_CONFIG $(SRCTREE)/board/keymile/kmp204x/rcw_kmp204x.cfg
+#define CONFIG_SYS_FSL_PBL_PBI $(SRCTREE)/board/keymile/kmp204x/pbi.cfg
+#define CONFIG_SYS_FSL_PBL_RCW $(SRCTREE)/board/keymile/kmp204x/rcw_kmp204x.cfg
 
 /* High Level Configuration Options */
 #define CONFIG_BOOKE