#error "Unsupported AT91 processor"
#endif
+/* External Memory Map */
+#define AT91_CHIPSELECT_0 0x10000000
+#define AT91_CHIPSELECT_1 0x20000000
+#define AT91_CHIPSELECT_2 0x30000000
+#define AT91_CHIPSELECT_3 0x40000000
+#define AT91_CHIPSELECT_4 0x50000000
+#define AT91_CHIPSELECT_5 0x60000000
+#define AT91_CHIPSELECT_6 0x70000000
+#define AT91_CHIPSELECT_7 0x80000000
+
+/* SDRAM */
+#ifdef CONFIG_DRAM_BASE
+#define AT91_SDRAM_BASE CONFIG_DRAM_BASE
+#else
+#define AT91_SDRAM_BASE AT91_CHIPSELECT_1
+#endif
+
/* Clocks */
#define AT91_SLOW_CLOCK 32768 /* slow clock */