As the code is today, we get a warning about "select" statements on
"choice" options not doing anything. In the case of OF_SEPARATE this is
the default so we do not need to do anything here normally to enforce
this.
Signed-off-by: Tom Rini <trini@konsulko.com>
Enable PCI enumeration by default to get the Bochs display driver up
and running before the boot medium is scanned.
This is just to enhance the user-experience while booting the machine.
TEST: U-Boot logo, version, log output and the U-Boot shell is visible
on the display device.
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
qemu's sbsa-ref is always using a 64bit CPU and the PCI prefetch MMIO
window is located above 4GiB, thus always enable SYS_PCI_64BIT.
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Add support for Arm sbsa [1] v0.3+ that is supported by QEMU [2].
Unlike other Arm based platforms the machine only provides a minimal
FDT that contains number of CPUs, ammount of memory and machine-version.
The boot firmware has to provide ACPI tables to the OS.
Due to this design a full DTB is added here as well that allows U-Boot's
driver to properly function. The DTB is appended at the end of the U-Boot
image and will be merged with the QEMU provided DTB.
In addition provide documentation how to use, enable binman to fabricate both
ROMs that are required to boot and add ACPI tables to make it full compatible
to the EDK2 reference implementation.
The board was tested using Fedora 40 Aarch64 Workstation. It's able
to boot from USB and AHCI or network.
Tested and found working:
- serial
- PCI
- xHCI
- Bochs display
- AHCI
- network using e1000e
- CPU init
- Booting Fedora 40
1: Server Base System Architecture (SBSA)
2: https://www.qemu.org/docs/master/system/arm/sbsa.html
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Cc: Peter Robinson <pbrobinson@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
