feat(qti): introduce basic XPU driver

Introduce basic XPU access control driver which allows currently to
bypass XPU access control until a proper XPU driver is added upstream.

Change-Id: I2b5ad50c

feat(qti): introduce basic XPU driver

Introduce basic XPU access control driver which allows currently to
bypass XPU access control until a proper XPU driver is added upstream.

Change-Id: I2b5ad50c57b0112302d3568e0e0bcf2116d3e259
Co-developed-by: Casey Connolly <casey.connolly@linaro.org>
Signed-off-by: Casey Connolly <casey.connolly@linaro.org>
Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>

show more ...

feat(qti): add TF-A BL2 common platform framework

Currently QTI pltforms only supports coreboot as the second stage
bootloader. Lets enable support for TF-A BL2 as the common reference
second stage

feat(qti): add TF-A BL2 common platform framework

Currently QTI pltforms only supports coreboot as the second stage
bootloader. Lets enable support for TF-A BL2 as the common reference
second stage bootloader which is able to support a variety of normal
world OS bootloaders (BL33) like edk2, U-Boot, coreboot-depthcharge etc.

The common reference boot flow should look like following on QTI
platforms:

PBL (ROM) -> XBL -> BL2 -> BL31 -> BL33 -> Normal world OS
|
--> BL32

As of now XBL is performing DRAM initialization and loads two set of
images for BL2 and FIP into DRAM from flash after performing secure boot
checks if enabled. Then BL2 does the FIP parsing from DRAM and loads
payloads at appropriate addresses as per the FIP configuration.

Note here that BL2 image is loaded from TZ partition on UFS flash which
by default requires QTI secure boot checks.

Change-Id: Ice73905bff39291fa417389cb84dabe455c3f0ba
Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>

show more ...

refactor(qti): refactor RNG as a proper driver

Refactor QTI RNG as a proper driver rather than being present in
platform code aligning with common practice followed by other platforms.

Change-Id: I

refactor(qti): refactor RNG as a proper driver

Refactor QTI RNG as a proper driver rather than being present in
platform code aligning with common practice followed by other platforms.

Change-Id: I4c1f23b7ea2f17fdb71792319b4c403db542b757
Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>

show more ...

feat(qti): add BL32 support

Add support for loading a BL32 image like OP-TEE. In this case we stop
routing secure EL3 interrupts to EL3 and instead allow S-EL1 to handle
them.

Change-Id: I8ba25f83c

feat(qti): add BL32 support

Add support for loading a BL32 image like OP-TEE. In this case we stop
routing secure EL3 interrupts to EL3 and instead allow S-EL1 to handle
them.

Change-Id: I8ba25f83cfc8749974fb5760392a8c64b2cec18b
Signed-off-by: Casey Connolly <casey.connolly@linaro.org>
Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>

show more ...

refactor(qti): make UART config independent

Make UART configuration independent of coreboot since there are
alternative bootloaders like TF-A BL2 which can be supported. Also,
configure UART scope t

refactor(qti): make UART config independent

Make UART configuration independent of coreboot since there are
alternative bootloaders like TF-A BL2 which can be supported. Also,
configure UART scope to enable runtime logging as well.

Change-Id: I1956535c769c2c3141854d062dc02c289b86b48d
Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>

show more ...

refactor(qti): make CNTFRQ config independent

Make system counter frequency configuration independent of prior stage
boot-loader like coreboot to enable an alternative boot-loaders such as
TF-A BL2.

refactor(qti): make CNTFRQ config independent

Make system counter frequency configuration independent of prior stage
boot-loader like coreboot to enable an alternative boot-loaders such as
TF-A BL2.

Change-Id: Id22803557466643f6455a243929626f71a4714fc
Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>

show more ...

fix(qti): fix build without coreboot

Skip some memory checks that rely on coreboot data.

Change-Id: I3c00aace547385af6b49632e3acfd9a977306a83
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.or

fix(qti): fix build without coreboot

Skip some memory checks that rely on coreboot data.

Change-Id: I3c00aace547385af6b49632e3acfd9a977306a83
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>

show more ...

refactor(platforms): remove usage of psci_power_down_wfi

The callers in PSCI will now call wfi() after calling the
pwr_domain_pwr_down() platform hook (previously they were mutually
exclusive). As s

refactor(platforms): remove usage of psci_power_down_wfi

The callers in PSCI will now call wfi() after calling the
pwr_domain_pwr_down() platform hook (previously they were mutually
exclusive). As such, there is no need for platforms to do this
themselves. In fact, it is strongly advisable for platforms not to do
this themselves so that the PSCI can apply any relevant errata
mitigations.

Change-Id: Ic9702edef7503996be24d984e29dfcc13bc3fcba
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>

show more ...

refactor(cpus): optimize CVE checking

This patch replaces the use of EXTRA functions
with using erratum entries check
to verify CVE mitigation application for some of
the SMCCC_ARCH_WORKAROUND_* cal

refactor(cpus): optimize CVE checking

This patch replaces the use of EXTRA functions
with using erratum entries check
to verify CVE mitigation application for some of
the SMCCC_ARCH_WORKAROUND_* calls.

Previously, EXTRA functions were individually implemented for
each SMCCC_ARCH_WORKAROUND_*, an approach that becomes unmanageable
with the increasing number of workarounds.
By looking up erratum entries for CVE check, the process is streamlined,
reducing overhead associated with creating and
maintaining EXTRA functions for each new workaround.

New Errata entries are created for SMC workarounds and
that is used to target cpus that are uniquely impacted
by SMC workarounds.

Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>
Change-Id: I873534e367a35c99461d0a616ff7bf856a0000af

show more ...

chore(docs): drop the "wfi" from `pwr_domain_pwr_down_wfi`

To allow for generic handling of a wakeup, this hook is no longer
expected to call wfi itself. Update the name everywhere to reflect this
e

chore(docs): drop the "wfi" from `pwr_domain_pwr_down_wfi`

To allow for generic handling of a wakeup, this hook is no longer
expected to call wfi itself. Update the name everywhere to reflect this
expectation so that future platform implementers don't get misled.

Change-Id: Ic33f0b6da74592ad6778fd802c2f0b85223af614
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>

show more ...

refactor: panic after calling psci_power_down_wfi()

This function doesn't return and its callers that don't return either
rely on this. Drop the dead attribute and add a panic() after it to make
thi

refactor: panic after calling psci_power_down_wfi()

This function doesn't return and its callers that don't return either
rely on this. Drop the dead attribute and add a panic() after it to make
this expectation explicit. Calling `wfi` in the powerdown sequence is
terminal so even if the function was made to return, there would be no
functional change.

This is useful for a following patch that makes psci_power_down_wfi()
return.

Change-Id: I62ca1ee058b1eaeb046966c795081e01bf45a2eb
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>

show more ...

feat(qti): platform support for qcs615

Change-Id: Ibbe78a196d77530fa9d94d7d12b2f08a4b66d62e
Signed-off-by: Amarinder Singh Sethi <quic_assethi@quicinc.com>

refactor(cpus): remove cpu specific errata funcs

Errata printing is done directly via generic_errata_report.
This commit removes the unused \_cpu\()_errata_report
functions for all cores, and remove

refactor(cpus): remove cpu specific errata funcs

Errata printing is done directly via generic_errata_report.
This commit removes the unused \_cpu\()_errata_report
functions for all cores, and removes errata_func from cpu_ops.

Change-Id: I04fefbde5f0ff63b1f1cd17c864557a14070d68c
Signed-off-by: Ryan Everett <ryan.everett@arm.com>

show more ...