#define CONFIG_SYS_CLK_FREQ 750000000
#define CONFIG_SYS_TIMER_RATE CONFIG_SYS_CLK_FREQ
-/* dwgmac doesn't work with D$ enabled now */
+/* NAND controller DMA doesn't work correctly with D$ enabled */
#define CONFIG_SYS_DCACHE_OFF
/*
#define CONFIG_SYS_DDR_SDRAM_BASE 0x80000000
#define CONFIG_SYS_SDRAM_BASE CONFIG_SYS_DDR_SDRAM_BASE
-#define CONFIG_SYS_SDRAM_SIZE 0x10000000 /* 256 Mb */
+#define CONFIG_SYS_SDRAM_SIZE 0x20000000 /* 512 Mb */
#define CONFIG_SYS_INIT_SP_ADDR \
(CONFIG_SYS_SDRAM_BASE + 0x1000 - GENERATED_GBL_DATA_SIZE)