u-boot.git/drivers/firmware, branch v2021.01

firmware: zynqmp: Swap addr_hi/low when PM_FPGA_LOAD is called

2020-10-27T07:13:31+00:00

Don't know reason but in regular flow addr_hi/low are swapped in ATF. It
means when fpga load is done from EL3 there is a need to swap it for PMUFW
to load bitstream.

Signed-off-by: Michal Simek 
Reviewed-by: Simon Glass

firmware: scmi: Include device_compat.h

2020-10-15T22:36:55+00:00

This header is necessary for the dev_xxx macros.

Signed-off-by: Sean Anderson 
Reviewed-by: Simon Glass

firmware: smci: sandbox test for SCMI reset controllers

2020-09-30T15:55:24+00:00

Add tests for SCMI reset controllers. A test device driver
sandbox-scmi_devices.c is used to get reset resources, allowing further
resets manipulation.

Change sandbox-smci_agent to emulate 1 reset controller exposed through
an agent. Add DM test scmi_resets to test this reset controller.

Signed-off-by: Etienne Carriere 
Cc: Simon Glass 
Cc: Peng Fan 
Cc: Sudeep Holla 
Reviewed-by: Simon Glass

reset: add reset controller driver for SCMI agents

2020-09-30T15:55:23+00:00

This change introduces a reset controller driver for SCMI agent devices.
When SCMI agent and SCMI reset domain drivers are enabled, SCMI agent
binds a reset controller device for each SCMI reset domain protocol
devices enabled in the FDT.

SCMI reset driver is embedded upon CONFIG_RESET_SCMI=y. If enabled,
CONFIG_SCMI_AGENT is also enabled.

SCMI Reset Domain protocol is defined in the SCMI specification [1].

Links: [1] https://developer.arm.com/architectures/system-architectures/software-standards/scmi
Signed-off-by: Etienne Carriere 
Cc: Simon Glass 
Cc: Peng Fan 
Cc: Sudeep Holla 
Reviewed-by: Simon Glass

firmware: scmi: sandbox test for SCMI clocks

2020-09-30T15:55:23+00:00

Add tests for SCMI clocks. A test device driver sandbox-scmi_devices.c
is used to get clock resources, allowing further clock manipulation.

Change sandbox-smci_agent to emulate 3 clocks exposed through 2 agents.
Add DM test scmi_clocks to test these 3 clocks.
Update DM test sandbox_scmi_agent with load/remove test sequences
factorized by {load|remove}_sandbox_scmi_test_devices() helper functions.

Signed-off-by: Etienne Carriere 
Cc: Simon Glass 
Cc: Peng Fan 
Cc: Sudeep Holla 
Reviewed-by: Simon Glass

clk: add clock driver for SCMI agents

2020-09-30T15:55:23+00:00

This change introduces a clock driver for SCMI agent devices. When
SCMI agent and SCMI clock drivers are enabled, SCMI agent binds a
clock device for each SCMI clock protocol devices enabled in the FDT.

SCMI clock driver is embedded upon CONFIG_CLK_SCMI=y. If enabled,
CONFIG_SCMI_AGENT is also enabled.

SCMI Clock protocol is defined in the SCMI specification [1].

Links: [1] https://developer.arm.com/architectures/system-architectures/software-standards/scmi
Signed-off-by: Etienne Carriere 
Cc: Lukasz Majewski 
Cc: Simon Glass 
Cc: Peng Fan 
Cc: Sudeep Holla 
Reviewed-by: Simon Glass

firmware: scmi: support Arm SMCCC transport

2020-09-30T15:55:23+00:00

This change implements a SMCCC transport for SCMI exchanges. This
implementation follows the Linux kernel as references implementation
for SCMI message processing, using the SMT format for communication
channel meta-data.

Use of SMCCC transport in SCMI FDT bindings are defined in the Linux
kernel DT bindings since v5.8. SMCCC with SMT is implemented in OP-TEE
from tag 3.9.0 [2].

Links: [2] https://github.com/OP-TEE/optee_os/commit/a58c4d706d23
Signed-off-by: Etienne Carriere 
Cc: Simon Glass 
Cc: Peng Fan 
Cc: Sudeep Holla 
Reviewed-by: Simon Glass

firmware: scmi: mailbox/smt agent device

2020-09-30T15:55:23+00:00

This change implements a mailbox transport using SMT format for SCMI
exchanges. This implementation follows the Linux kernel and
SCP-firmware [1] as references implementation for SCMI message
processing using SMT format for communication channel meta-data.

Use of mailboxes in SCMI FDT bindings are defined in the Linux kernel
DT bindings since v4.17.

Links: [1] https://github.com/ARM-software/SCP-firmware
Signed-off-by: Etienne Carriere 
Cc: Simon Glass 
Cc: Peng Fan 
Cc: Sudeep Holla 
Reviewed-by: Simon Glass

firmware: add SCMI agent uclass

2020-09-30T15:55:23+00:00

This change introduces SCMI agent uclass to interact with a firmware
using the SCMI protocols [1].

SCMI agent uclass currently supports a single method to request
processing of the SCMI message by an identified server. A SCMI message
is made of a byte payload associated to a protocol ID and a message ID,
all defined by the SCMI specification [1]. On return from process_msg()
method, the caller gets the service response.

SCMI agent uclass defines a post bind generic sequence for all devices.
The sequence binds all the SCMI protocols listed in the FDT for that
SCMI agent device. Currently none, but later change will introduce
protocols.

This change implements a simple sandbox device for the SCMI agent uclass.
The sandbox nicely answers SCMI_NOT_SUPPORTED to SCMI messages.
To prepare for further test support, the sandbox exposes a architecture
function for test application to read the sandbox emulated devices state.
Currently supports 2 SCMI agents, identified by an ID in the FDT device
name. The simplistic DM test does nothing yet.

SCMI agent uclass is designed for platforms that embed a SCMI server in
a firmware hosted somewhere, for example in a companion co-processor or
in the secure world of the executing processor. SCMI protocols allow an
SCMI agent to discover and access external resources as clock, reset
controllers and more. SCMI agent and server communicate following the
SCMI specification [1]. This SCMI agent implementation complies with
the DT bindings defined in the Linux kernel source tree regarding
SCMI agent description since v5.8.

Links: [1] https://developer.arm.com/architectures/system-architectures/software-standards/scmi
Signed-off-by: Etienne Carriere 
Cc: Simon Glass 
Cc: Peng Fan 
Cc: Sudeep Holla 
Reviewed-by: Simon Glass

firmware: ti_sci: Fix not calling dev_err with a device

2020-09-30T12:52:24+00:00

This converts calls to dev_err to get the device from ti_sci_info where
appropriate.

Signed-off-by: Sean Anderson 
Reviewed-by: Nishanth Menon 
Tested-by: Patrick Delaunay