| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| |
|
|
| |
Signed-off-by: Michael Brown <mcb30@ipxe.org>
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
We will want to be able to create the console device as early as
possible. Refactor devicetree probing to remove the assumption that a
devicetree device must have a devicetree parent, and expose functions
to allow a standalone device to be created given only the offset of a
node within the tree.
The full device path is no longer trivial to construct with this
assumption removed. The full path is currently used only for debug
messages. Remove the stored full path, use just the node name for
debug messages, and ensure that the topology information previously
visible in the full path is reconstructible from the combined debug
output if needed.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
|
| |
|
|
|
|
|
|
|
|
|
|
| |
We currently rely on the recursive nature of devicetree bus probing to
obtain the region cell size specification from the parent device.
This blocks the possibility of creating a standalone console device
based on /chosen/stdout-path before probing the whole bus.
Fix by using fdt_parent() to locate the parent device at the point of
use within dt_ioremap().
Signed-off-by: Michael Brown <mcb30@ipxe.org>
|
| |
|
|
|
|
|
|
|
|
| |
The "reg" property is also used by non-device nodes, such as the nodes
describing the system memory map.
Provide generalised functionality for parsing the "#address-cells",
"#size-cells", and "reg" properties.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
|
| |
|
|
|
|
|
| |
Add a basic driver for the Cadence GEM network interface as emulated
by QEMU when using the RISC-V "sifive_u" machine type.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
Devicetree devices encode register address ranges within the "reg"
property, with the number of cells used for addresses and for sizes
determined by the #address-cells and #size-cells properties of the
immediate parent device.
Record the number of address and size cells for each device, and
provide a dt_ioremap() function to allow drivers to map a specified
range without having to directly handle the "reg" property.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
|
|
|
Add a basic model for devices instantiated by parsing the system
flattened device tree, with drivers matched via the "compatible"
property for any non-root node.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
|
