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hw/loongarch: Add fdt support

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Add LoongArch flatted device tree, adding cpu device node, firmware cfg node,
pcie node into it, and create fdt rom memory region. Now fdt info is not
full since only uefi bios uses fdt, linux kernel does not use fdt.
Loongarch Linux kernel uses acpi table which is full in qemu virt
machine.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Message-Id: <20220712083206.4187715-7-yangxiaojuan@loongson.cn>
[rth: Set TARGET_NEED_FDT, add fdt to meson.build]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Xiaojuan Yang 2022-07-12 16:32:06 +08:00 • committed by Richard Henderson
parent 735143f10d
commit fda3f15b00
6 changed files with 143 additions and 4 deletions
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4
include/hw/loongarch/virt.h
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@ -28,6 +28,9 @@
#define VIRT_GED_MEM_ADDR (VIRT_GED_EVT_ADDR + ACPI_GED_EVT_SEL_LEN)
#define VIRT_GED_REG_ADDR (VIRT_GED_MEM_ADDR + MEMORY_HOTPLUG_IO_LEN)
#define LA_FDT_BASE 0x1c400000
#define LA_FDT_SIZE 0x100000
struct LoongArchMachineState {
/*< private >*/
MachineState parent_obj;
@ -45,6 +48,7 @@ struct LoongArchMachineState {
char *oem_id;
char *oem_table_id;
DeviceState *acpi_ged;
int fdt_size;
};
#define TYPE_LOONGARCH_MACHINE MACHINE_TYPE_NAME("virt")