WIP: feat: baremetalsupport aarch64 #412
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Documentation for the structure of the linux-header can be found under https://www.kernel.org/doc/Documentation/arm64/booting.txt and https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/kernel/efi-header.S Signed-off-by: Fritz Stracke <[email protected]>
This commit produces a non-functioning bootloader! Modify entry.s to print the character "A" over a xilinx uart serial connection. First steps towards a runnable bootloader. Signed-off-by: Fritz Stracke <[email protected]>
Signed-off-by: Fritz Stracke <[email protected]>
+ Add generic Serial Interface + Move Qemu specific Code into driver + Add driver for xlnx Signed-off-by: Fritz Stracke <[email protected]>
+ startup code now checks exception level + retry writing character one hundret times to prevent lost characters + change file structure for serial drivers Signed-off-by: Fritz Stracke <[email protected]>
Runs the hermit-loader completley. Signed-off-by: Fritz Stracke <[email protected]>
Changes to the interrupt-system can only be sufficiently configured using a higher level of privilege. Hence it is mandatory to boot the processor in secure-mode. Signed-off-by: Fritz Stracke <[email protected]>
Add code annotations to include TODOs. Signed-off-by: Fritz Stracke <[email protected]>
fstracke
changed the title
This commit introduces a transparent serial port structure. The Device tree is read for the currently connected serial device. Depending on the connected architecture an approapriate driver is selected. Signed-off-by: Fritz Stracke <[email protected]>
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This Pullrequest is a very early WIP.
It aims to enable the loader to run on bare-metal aarch64 systems.
The Initial drivers necessary for this only include qemu and ZynqMP.
The driver engine needs reworking before a merge is possible.
It intends to read all properties of the serial device from the device-tree
and select the appropriate driver.
The drivers all commonly implement the SerialDriver trait.