DDR_PHYSICAL_BASE
mem_layout[0].mem_first_page = atop(DDR_PHYSICAL_BASE) + 1;
mem_layout[0].mem_last_page = atop(DDR_PHYSICAL_BASE) +
loongson_dma_base = PCI_DDR_BASE ^ DDR_PHYSICAL_BASE;
loongson2f_setup_window(MASTER_CPU, WINDOW_CPU_LOW, DDR_PHYSICAL_BASE,
~(0x0fffffffUL), DDR_PHYSICAL_BASE, MASTER_CPU);
~(DDR_PHYSICAL_SIZE - 1), DDR_PHYSICAL_BASE, MASTER_CPU);
~(DDR_PHYSICAL_SIZE - 1), DDR_PHYSICAL_BASE, MASTER_CPU);
mem_layout[0].mem_first_page = atop(DDR_PHYSICAL_BASE) + 1;
mem_layout[0].mem_last_page = atop(DDR_PHYSICAL_BASE) + memlo;
loongson_dma_base = PCI_DDR_BASE ^ DDR_PHYSICAL_BASE;