qemu
static const MemMapEntry virt_memmap[] = {
[VIRT_DEBUG] = { 0x0, 0x100 },
[VIRT_MROM] = { 0x1000, 0xf000 },
[VIRT_TEST] = { 0x100000, 0x1000 },
[VIRT_RTC] = { 0x101000, 0x1000 },
[VIRT_CLINT] = { 0x2000000, 0x10000 },
[VIRT_PCIE_PIO] = { 0x3000000, 0x10000 },
[VIRT_PLIC] = { 0xc000000, VIRT_PLIC_SIZE(VIRT_CPUS_MAX * 2) },
[VIRT_UART0] = { 0x10000000, 0x100 },
[VIRT_UART1] = { 0x50000000, 0x100 },
[VIRT_VIRTIO] = { 0x10001000, 0x1000 },
[VIRT_FW_CFG] = { 0x10100000, 0x18 },
[VIRT_FLASH] = { 0x20000000, 0x4000000 },
[VIRT_PCIE_ECAM] = { 0x30000000, 0x10000000 },
[VIRT_PCIE_MMIO] = { 0x40000000, 0x40000000 },
[VIRT_DRAM] = { 0x80000000, 0x0 },
};
name = g_strdup_printf("/soc/uart@%lx", (long)memmap[VIRT_UART1].base);
qemu_fdt_add_subnode(fdt, name);
qemu_fdt_setprop_string(fdt, name, "compatible", "ns16550a");
qemu_fdt_setprop_cells(fdt, name, "reg",
0x0, memmap[VIRT_UART1].base,
0x0, memmap[VIRT_UART1].size);
设备书的特殊节点-chosen
RT-Thread Nano实战2-msh uart 配置与运行