| Age | Commit message (Collapse) | Author |
|---|
|
When ACPI is enabled over FDT the APs cannot be brought out of reset
by the OS using the "FDT spin-table" mechanism, as no FDT is provided
to the OS. The APs must be released out of reset in u-boot and then
brought up in an ACPI compliant fashion.
When ARMV8_MULTIENTRY is specified, the APs are released from reset
and will enter U-Boot after it has been relocated as well.
By default ARMV8_MULTIENTRY is not selected, keeping existing behaviour.
TEST: All APs enter U-Boot when run on qemu-system-aarch64 and on
real hardware.
Signed-off-by: Patrick Rudolph <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Cc: Matthias Brugger <[email protected]>
Cc: Peter Robinson <[email protected]>
Cc: Tom Rini <[email protected]>
|
|
Add a generic driver that binds to armv8 CPU nodes. The generic driver allows
- to enumerate CPUs present in a system, even when no other driver binds it
- generates ACPI SSDT code for each CPU
- Fill the ACPI MADT table (implemented in a follow up patch)
The newly introduced code could also be reused on other CPU drivers that are
compatible with armv8.
TEST: Booted on QEMU sbsa and verify the driver binds to CPU nodes.
Confirmed with FWTS that all ACPI processor devices are present.
Signed-off-by: Patrick Rudolph <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Cc: Tom Rini <[email protected]>
Cc: Simon Glass <[email protected]>
|
|
Implement various CPU related functions.
I'm actually just using it to get cpu clock frequency.
Tested-by: Max Filippov <[email protected]>
Signed-off-by: Jiaxun Yang <[email protected]>
|
|
Add CPU_IMX Kconfig
Support imx8_cpu driver for i.MX9
Signed-off-by: Peng Fan <[email protected]>
|
|
Add basic CPU driver used to retrieve CPU model information.
Tested-by: Daniel Golle <[email protected]>
Signed-off-by: Weijie Gao <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
|
|
Add a basic CPU driver that retrieves information about the microblaze CPU
core. cpu_ops handlers are implemented so that the "cpu" command can work
properly:
U-Boot-mONStR> cpu list
0: cpu@0 MicroBlaze @ 50MHz, Rev: 11.0, FPGA family: zynq7000
U-Boot-mONStR> cpu detail
0: cpu@0 MicroBlaze @ 50MHz, Rev: 11.0, FPGA family: zynq7000
ID = 0, freq = 50 MHz: L1 cache, MMU
Note: cpu_ver_lookup[] and family_string_lookup[] arrays were imported from
linux.
Signed-off-by: Ovidiu Panait <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>
|
|
Add basic CPU driver use to retrieve information about CPU itself.
Signed-off-by: Claudiu Beznea <[email protected]>
|
|
Move cpu desc code to cpu driver directory and name it imx8_cpu.c
No functional change.
Signed-off-by: Peng Fan <[email protected]>
|
|
This adds a driver for RISC-V CPU. Note the driver will bind
a RISC-V timer driver if "timebase-frequency" property is
present in the device tree.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Lukas Auer <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
|
|
Complete in the drivers directory the work started with
commit 83d290c56fab ("SPDX: Convert all of our single
license tags to Linux Kernel style").
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Patrick Delaunay <[email protected]>
|
|
Add a CPU driver for the MPC83xx architecture.
Signed-off-by: Mario Six <[email protected]>
|
|
Add a sandbox CPU driver, and some tests for the CPU uclass.
Signed-off-by: Mario Six <[email protected]>
|
|
Signed-off-by: Álvaro Fernández Rojas <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
|
|
It is useful to be able to keep track of the available CPUs in a multi-CPU
system. This uclass is mostly intended for use with SMP systems.
The uclass provides methods for getting basic information about each CPU.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
|
