1. 25 Sep, 2019 2 commits
    • Andre Przywara's avatar
      rpi4: Determine BL33 entry point at runtime · 448fb352
      Andre Przywara authored
      
      
      Now that we have the armstub magic value in place, the GPU firmware will
      write the kernel load address (and DTB address) into our special page,
      so we can always easily access the actual location without hardcoding
      any addresses into the BL31 image.
      
      Make the compile-time defined PRELOADED_BL33_BASE macro optional, and
      read the BL33 entry point from the magic location, if the macro was not
      defined. We do the same for the DTB address.
      
      This also splits the currently "common" definition of
      plat_get_ns_image_entrypoint() to be separate between RPi3 and RPi4.
      
      Change-Id: I6f26c0adc6fce2df47786b271c490928b4529abb
      Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      448fb352
    • Andre Przywara's avatar
      rpi3: Allow runtime determination of UART base clock rate · 7c0a1877
      Andre Przywara authored
      
      
      At the moment the UART input clock rate is hard coded at compile time.
      This works as long as the GPU firmware always sets up the same rate,
      which does not seem to be true for the Raspberry Pi 4.
      
      In preparation for being able to change this at runtime, add a base
      clock parameter to the console setup function. This is still hardcoded
      for the Raspberry Pi 3.
      
      Change-Id: I398bc2f1e9b46f7af9a84cb0b33cbe8e78f2d900
      Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      7c0a1877
  2. 13 Sep, 2019 1 commit
    • Andre Przywara's avatar
      rpi3: Add "rpi" platform directory · ab13addd
      Andre Przywara authored
      
      
      With the incoming support for the Raspberry Pi 4 boards, one directory
      to serve both versions will not end up well.
      
      Create an additional layer by inserting a "rpi" directory betweeen /plat
      and rpi3, so that we can more easily share or separate files between the
      two later.
      
      Change-Id: I75adbb054fe7902f34db0fd5e579a55612dd8a5f
      Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      ab13addd
  3. 01 Feb, 2019 1 commit
  4. 16 Jan, 2019 1 commit
    • Igor Opaniuk's avatar
      rpi3: fix RPI3_PRELOADED_DTB_BASE usage · eabbdafe
      Igor Opaniuk authored
      
      
      In case if `RPI3_PRELOADED_DTB_BASE` isn't defined explicitly with
      proper pre-loaded DTB address, `add_define` macro defined in
      `make_helpers/build_macros.mk` still supplies this definition to the
      compiler like `-DRPI3_PRELOADED_DTB_BASE`, and it's obviously is set to
      default value 1.
      
      This simply leads to the wrong `MAP_NS_DTB` region definition (base_va
      is set `0x1` instead of `0x00010000`) in `plat/rpi3/rpi3_common.c`:
      
      Which causes aligment check to fail in `mmap_add_region_check()`:
      VERBOSE: base_pa: 0x00000001, base_va: 0x00000001, size: 0x00010000
      ...
      ERROR:   mmap_add_region_check() failed. error -22
      Signed-off-by: default avatarIgor Opaniuk <igor.opaniuk@linaro.org>
      eabbdafe
  5. 04 Jan, 2019 1 commit
    • Antonio Nino Diaz's avatar
      Sanitise includes across codebase · 09d40e0e
      Antonio Nino Diaz authored
      Enforce full include path for includes. Deprecate old paths.
      
      The following folders inside include/lib have been left unchanged:
      
      - include/lib/cpus/${ARCH}
      - include/lib/el3_runtime/${ARCH}
      
      The reason for this change is that having a global namespace for
      includes isn't a good idea. It defeats one of the advantages of having
      folders and it introduces problems that are sometimes subtle (because
      you may not know the header you are actually including if there are two
      of them).
      
      For example, this patch had to be created because two headers were
      called the same way: e0ea0928 ("Fix gpio includes of mt8173 platform
      to avoid collision."). More recently, this patch has had similar
      problems: 46f9b2c3 ("drivers: add tzc380 support").
      
      This problem was introduced in commit 4ecca339
      
       ("Move include and
      source files to logical locations"). At that time, there weren't too
      many headers so it wasn't a real issue. However, time has shown that
      this creates problems.
      
      Platforms that want to preserve the way they include headers may add the
      removed paths to PLAT_INCLUDES, but this is discouraged.
      
      Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
      Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      09d40e0e
  6. 24 Oct, 2018 1 commit
    • Antonio Nino Diaz's avatar
      rpi3: Add mem reserve region to DTB if present · 5341b42e
      Antonio Nino Diaz authored
      
      
      When a device tree blob is present at a known address, instead of, for
      example, relying on the user modifying the Linux command line to warn
      about the memory reserved for the Trusted Firmware, pass it on the DTB.
      
      The current code deletes the memory reserved for the default bootstrap
      of the Raspberry Pi and adds the region used by the Trusted Firmware.
      
      This system replaces the previous one consisting on adding
      ``memmap=16M$256M`` to the Linux command line. It's also meant to be
      used by U-Boot and any other bootloader that understands DTB files.
      
      Change-Id: I13ee528475fb043d6e8d9e9f24228e37ac3ac436
      Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      5341b42e
  7. 10 Oct, 2018 1 commit
  8. 17 Aug, 2018 1 commit
  9. 16 Jul, 2018 2 commits
  10. 27 Mar, 2018 1 commit
    • Antonio Nino Diaz's avatar
      rpi3: Use new console APIs · e0f21f62
      Antonio Nino Diaz authored
      
      
      Switch to the new console APIs enabled by setting MULTI_CONSOLE_API=1.
      
      The crash console doesn't use this API, it uses internally the core
      functions of the 16550 console.
      
      `bl31_plat_runtime_setup` is no longer needed. When this platform port
      was introduced, that function used to disable the console. It was needed
      to override that behaviour. The new behaviour is to switch to the
      runtime console. The console is registered for all scopes (boot, crash
      and runtime) in `rpi3_console_init` so it is not needed to override the
      default behaviour anymore.
      
      Update documentation.
      
      Change-Id: If2ee8f91044216183b7ef142e5c05ad6220ae92f
      Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      e0f21f62
  11. 01 Dec, 2017 1 commit