Struct FdtManager 

pub struct FdtManager<'a> {
    fdt: Option<Fdt<'a>>,
    relocated: bool,
    original_addr: Option<usize>,
}

Fields

fdt: Option<Fdt<'a>>

relocated: bool

original_addr: Option<usize>

Implementations

impl<'a> FdtManager<'a>

const fn new() -> Self

pub fn init(&mut self, ptr: *const u8) -> Result<(), FdtError>

pub fn get_fdt(&self) -> Option<&Fdt<'a>>

pub unsafe fn get_mut_manager() -> &'static mut FdtManager<'static>

Returns a mutable reference to the FdtManager for initialization.

Safety

This function is only safe to call during single-threaded boot initialization. After SMP is enabled, this should not be called.

pub fn get_manager() -> &'static FdtManager<'static>

Returns a reference to the FdtManager.

Returns

A reference to the static FdtManager instance.

Panics

Panics if called before FdtManager is initialized via init_fdt().

unsafe fn relocate_fdt(&mut self, ptr: *mut u8)

Relocates the FDT to a new address.

Safety

This function modifies the static FDT address and reinitializes the FdtManager. Ensure that the new address is valid and does not cause memory corruption.

Parameters

• ptr: The pointer to the new FDT address.

Panics

This function will panic if the FDT has already been relocated.

pub fn get_initramfs(&self) -> Option<MemoryArea>

Get the initramfs memory area from the device tree

This function searches for the initramfs memory region in the device tree. It looks for the initrd-start/end or linux,initrd-start/end properties in the /chosen node.

Returns

Option: If the initramfs region is found, returns Some(MemoryArea), otherwise returns None.

pub fn get_dram_memoryarea(&self) -> Option<MemoryArea>

pub fn get_cpu_count(&self) -> Option<usize>