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  1. 15 Jun, 2020 1 commit
  3. 12 Jun, 2020 1 commit
  5. 09 Jun, 2020 2 commits
    • Madhukar Pappireddy's avatar
      plat/fvp: Add support for dynamic description of secure interrupts · 452d5e5e
      Madhukar Pappireddy authored 
      

Using the fconf framework, the Group 0 and Group 1 secure interrupt
descriptors are moved to device tree and retrieved in runtime. This
feature is enabled by the build flag SEC_INT_DESC_IN_FCONF.

Change-Id: I360c63a83286c7ecc2426cd1ff1b4746d61e633c
Signed-off-by: default avatarMadhukar Pappireddy <madhukar.pappireddy@arm.com>
      452d5e5e
    • Andre Przywara's avatar
      GICv3: GIC-600: Detect GIC-600 at runtime · b4ad365a
      Andre Przywara authored 
      

The only difference between GIC-500 and GIC-600 relevant to TF-A is the
differing power management sequence.
A certain GIC implementation is detectable at runtime, for instance by
checking the IIDR register. Let's add that test before initiating the
GIC-600 specific sequence, so the code can be used on both GIC-600 and
GIC-500 chips alike, without deciding on a GIC chip at compile time.

This means that the GIC-500 "driver" is now redundant. To allow minimal
platform support, add a switch to disable GIC-600 support.

Change-Id: I17ea97d9fb05874772ebaa13e6678b4ba3415557
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      b4ad365a
  7. 01 Jun, 2020 1 commit
  9. 29 May, 2020 1 commit
  11. 28 May, 2020 1 commit
  13. 27 May, 2020 1 commit
    • Usama Arif's avatar
      plat/arm: Introduce TC0 platform · f5c58af6
      Usama Arif authored 
      

This patch adds support for Total Compute (TC0) platform. It is an
initial port and additional features are expected to be added later.

TC0 has a SCP which brings the primary Cortex-A out of reset
which starts executing BL1. TF-A optionally authenticates the SCP
ram-fw available in FIP and makes it available for SCP to copy.

Some of the major features included and tested in this platform
port include TBBR, PSCI, MHUv2 and DVFS.

Change-Id: I1675e9d200ca7687c215009eef483d9b3ee764ef
Signed-off-by: default avatarUsama Arif <usama.arif@arm.com>
      f5c58af6
  15. 26 May, 2020 1 commit
  17. 25 May, 2020 2 commits
  19. 22 May, 2020 1 commit
  21. 19 May, 2020 2 commits
    • johpow01's avatar
      Enable v8.6 WFE trap delays · 6cac724d
      johpow01 authored 
      

This patch enables the v8.6 extension to add a delay before WFE traps
are taken. A weak hook plat_arm_set_twedel_scr_el3 has been added in
plat/common/aarch64/plat_common.c that disables this feature by default
but platform-specific code can override it when needed.

The only hook provided sets the TWED fields in SCR_EL3, there are similar
fields in HCR_EL2, SCTLR_EL2, and SCTLR_EL1 to control WFE trap delays in
lower ELs but these should be configured by code running at EL2 and/or EL1
depending on the platform configuration and is outside the scope of TF-A.
Signed-off-by: default avatarJohn Powell <john.powell@arm.com>
Change-Id: I0a9bb814205efeab693a3d0a0623e62144abba2d
      6cac724d
    • Manish V Badarkhe's avatar
      Cleanup the code for TBBR CoT descriptors · ad43c49e
      Manish V Badarkhe authored 
      

CoT used for BL1 and BL2 are moved to tbbr_cot_bl1.c
and tbbr_cot_bl2.c respectively.
Common CoT used across BL1 and BL2 are moved to
tbbr_cot_common.c.
Signed-off-by: default avatarManish V Badarkhe <Manish.Badarkhe@arm.com>
Change-Id: I2252ac8a6960b3431bcaafdb3ea4fb2d01b79cf5
      ad43c49e
  23. 15 May, 2020 1 commit
  25. 14 May, 2020 1 commit
    • Manish V Badarkhe's avatar
      Implement workaround for AT speculative behaviour · 45aecff0
      Manish V Badarkhe authored 
      During context switching from higher EL (EL2 or higher)
to lower EL can cause incorrect translation in TLB due to
speculative execution of AT instruction using out-of-context
translation regime.

Workaround is implemented as below during EL's (EL1 or EL2)
"context_restore" operation:
1. Disable page table walk using SCTLR.M and TCR.EPD0 & EPD1
   bits for EL1 or EL2 (stage1 and stage2 disabled)
2. Save all system registers except TCR and SCTLR (for EL1 and EL2)
3. Do memory barrier operation (isb) to ensure all
   system register writes are done.
4. Restore TCR and SCTLR registers (for EL1 and EL2)

Errata details are available for various CPUs as below:
Cortex-A76: 1165522
Cortex-A72: 1319367
Cortex-A57: 1319537
Cortex-A55: 1530923
Cortex-A53: 1530924

More details can be found in mail-chain:
https://lists.trustedfirmware.org/pipermail/tf-a/2020-April/000445.html



Currently, Workaround is implemented as build option which is default
disabled.
Signed-off-by: default avatarManish V Badarkhe <Manish.Badarkhe@arm.com>
Change-Id: If8545e61f782cb0c2dda7ffbaf50681c825bd2f0
      45aecff0
  27. 13 May, 2020 2 commits
  29. 30 Apr, 2020 1 commit
  31. 21 Apr, 2020 1 commit
  33. 17 Apr, 2020 1 commit
  35. 16 Apr, 2020 3 commits
  37. 15 Apr, 2020 3 commits
  39. 07 Apr, 2020 1 commit
  41. 06 Apr, 2020 1 commit
  43. 03 Apr, 2020 1 commit
  45. 01 Apr, 2020 3 commits
  47. 31 Mar, 2020 2 commits
  49. 30 Mar, 2020 1 commit
    • Alexei Fedorov's avatar
      TF-A GICv3 driver: Introduce makefile · a6ea06f5
      Alexei Fedorov authored 
      

This patch moves all GICv3 driver files into new added
'gicv3.mk' makefile for the benefit of the generic driver
which can evolve in the future without affecting platforms.
The patch adds GICv3 driver configuration flags
'GICV3_IMPL', 'GICV3_IMPL_GIC600_MULTICHIP' and
'GICV3_OVERRIDE_DISTIF_PWR_OPS' described in
'GICv3 driver options' section of 'build-option.rst'
document.

NOTE: Platforms with GICv3 driver need to be modified to
include 'drivers/arm/gic/v3/gicv3.mk' in their makefiles.

Change-Id: If055f6770ff20f5dee5a3c99ae7ced7cdcac5c44
Signed-off-by: default avatarAlexei Fedorov <Alexei.Fedorov@arm.com>
      a6ea06f5
  51. 27 Mar, 2020 1 commit
  53. 26 Mar, 2020 3 commits