zynq: Cleanup on memory configs

Cleanup on memory configuration options:
- Add comment
- Re-order configs

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>

include/configs/zynq.h

@@ -13,14 +13,6 @@
 /* CPU clock */
 #define CONFIG_CPU_FREQ_HZ	800000000
 
-/* Ram */
-#define CONFIG_NR_DRAM_BANKS		1
-#define CONFIG_SYS_TEXT_BASE		0
-#define CONFIG_SYS_SDRAM_BASE		0
-#define CONFIG_SYS_SDRAM_SIZE		0x40000000
-#define CONFIG_SYS_MEMTEST_START	CONFIG_SYS_SDRAM_BASE
-#define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_SDRAM_BASE + 0x1000)
-
 /* The following table includes the supported baudrates */
 #define CONFIG_SYS_BAUDRATE_TABLE  \
 	{300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400}
@@ -105,11 +97,6 @@
 #define CONFIG_SYS_NO_FLASH
 
 #define CONFIG_SYS_MALLOC_LEN		0x400000
-#define CONFIG_SYS_INIT_RAM_ADDR	CONFIG_SYS_SDRAM_BASE
-#define CONFIG_SYS_INIT_RAM_SIZE	CONFIG_SYS_MALLOC_LEN
-#define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_INIT_RAM_ADDR + \
-						CONFIG_SYS_INIT_RAM_SIZE - \
-						GENERATED_GBL_DATA_SIZE)
 
 /* Miscellaneous configurable options */
 #define CONFIG_SYS_PROMPT		"zynq-uboot> "
@@ -125,7 +112,21 @@
 
 #define CONFIG_SYS_LOAD_ADDR	0
 
+/* Physical Memory map */
+#define CONFIG_SYS_TEXT_BASE		0
 
+#define CONFIG_NR_DRAM_BANKS		1
+#define CONFIG_SYS_SDRAM_BASE		0
+#define CONFIG_SYS_SDRAM_SIZE		0x40000000
+
+#define CONFIG_SYS_MEMTEST_START	CONFIG_SYS_SDRAM_BASE
+#define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_SDRAM_BASE + 0x1000)
+
+#define CONFIG_SYS_INIT_RAM_ADDR	CONFIG_SYS_SDRAM_BASE
+#define CONFIG_SYS_INIT_RAM_SIZE	CONFIG_SYS_MALLOC_LEN
+#define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_INIT_RAM_ADDR + \
+					CONFIG_SYS_INIT_RAM_SIZE - \
+					GENERATED_GBL_DATA_SIZE)
 /* OF */
 #define CONFIG_FIT
 #define CONFIG_FIT_VERBOSE	1 /* enable fit_format_{error,warning}() */