board: sama5d27_wlsom1_ek: Get RAM size and base from devicetree

Instead of using defines for the RAM size and base address, retrieve these
information from the devicetree.

This aligns with the sama5d27_som1_ek board in commit 73c1589f02
("board: sama5d27_som1_ek: Get dram size and base from device tree").

While at it, remove a spurious '/* SPL */' comment.

Signed-off-by: Fabio Estevam <festevam@denx.de>

board/atmel/sama5d27_wlsom1_ek/sama5d27_wlsom1_ek.c

@@ -65,7 +65,7 @@ int board_early_init_f(void)
 int board_init(void)
 {
 	/* address of boot parameters */
-	gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
+	gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100;
 
 	rgb_leds_init();
 
@@ -82,11 +82,14 @@ int misc_init_r(void)
 }
 #endif
 
+int dram_init_banksize(void)
+{
+	return fdtdec_setup_memory_banksize();
+}
+
 int dram_init(void)
 {
-	gd->ram_size = get_ram_size((void *)CFG_SYS_SDRAM_BASE,
-				    CFG_SYS_SDRAM_SIZE);
-	return 0;
+	return fdtdec_setup_mem_size_base();
 }
 
 /* SPL */

include/configs/sama5d27_wlsom1_ek.h

@@ -15,10 +15,4 @@
 #undef CFG_SYS_AT91_MAIN_CLOCK
 #define CFG_SYS_AT91_MAIN_CLOCK      24000000 /* from 24 MHz crystal */
 
-/* SDRAM */
-#define CFG_SYS_SDRAM_BASE		0x20000000
-#define CFG_SYS_SDRAM_SIZE		0x10000000
-
-/* SPL */
-
 #endif