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  1. 20 Oct, 2018 8 commits
    • Andre Przywara's avatar
      allwinner: Export sunxi_private.h · 4ec1a239
      Andre Przywara authored 
      

So far we have a sunxi_private.h header file in the common code directory.
This holds the prototypes of various functions we share in *common*
code. However we will need some of those in the platform specific code
parts as well, and want to introduce new functions shared across the
whole platform port.

So move the sunxi_private.h file into the common/include directory, so
that it becomes visible to all parts of the platform code.
Fix up the existing #includes and add missing ones, also add the
sunxi_read_soc_id() prototype here.

This will be used in follow up patches.
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      4ec1a239
    • Andre Przywara's avatar
      allwinner: A64/H5: Add basic and generic shutdown method · f953c30f
      Andre Przywara authored 
      

Some boards don't have a PMIC, so they can't easily turn their power
off. To cover those boards anyway, let's turn off as many devices and
clocks as possible, so that the power consumption is reduced. Then
halt the last core, as before.
This will later be extended with proper PMIC support for supported
boards.
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      f953c30f
    • Andre Przywara's avatar
      allwinner: Pass SoC ID to sunxi_pmic_setup() · fe57c7d4
      Andre Przywara authored 
      

In the BL31 platform setup we read the Allwinner SoC ID to identify the
chip and print its name.
In addition to that we will need to differentiate the power setup
between the SoCs, to pass on the SoC ID to the PMIC setup routine.
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      fe57c7d4
    • Andre Przywara's avatar
      allwinner: Introduce names for SoC IDs · 123bcb3f
      Andre Przywara authored 
      

We will soon make more use of the Allwinner SoC ID, to differentiate the
platform setup.
Introduce definitions to avoid dealing with magic numbers and make the
code more readable.
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      123bcb3f
    • Andre Przywara's avatar
      allwinner: H6: Fix SRAM size · f78f00aa
      Andre Przywara authored 
      

The SRAM in the Allwinner H6 SoC starts at 0x2000, with the last part
ending at 0x117fff (although with gaps in between).
So SUNXI_SRAM_SIZE should be 0xf8000, not 0x98000.

Fix this to map the arisc exception vector area, which we will need
shortly.
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      f78f00aa
    • Andre Przywara's avatar
      allwinner: Disable USE_COHERENT_MEM · 43060513
      Andre Przywara authored 
      

According to the documentation, platforms may choose to trade memory
footprint for performance (and elegancy) by not providing a separately
mapped coherent page.

Since a debug build is getting close to the SRAM size limit already, this
allows us to save about 3.5KB of BSS and have some room for future
enhancements.
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      43060513
    • Andre Przywara's avatar
      allwinner: Adjust memory mapping to fit into 256MB · c3af6b00
      Andre Przywara authored 
      

At the moment we map as much of the DRAM into EL3 as possible, however
we actually don't use it. The only exception is the secure DRAM for
BL32 (if that is configured).

To decrease the memory footprint of ATF, we save on some page tables by
reducing the memory mapping to the actually required regions: SRAM, device
MMIO, secure DRAM and U-Boot (to be used later).
This introduces a non-identity mapping for the DRAM regions.
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      c3af6b00
    • Andre Przywara's avatar
      allwinner: Unify platform.mk files · a80490c5
      Andre Przywara authored 
      

For the two different platforms we support in the Allwinner port we
mostly rely on header files covering the differences. This leads to the
platform.mk files in the respective directories to be almost identical.

To avoid further divergence and make sure that one platform doesn't
break accidentally, let's create a shared allwinner-common.mk file and
include that from the platform directory.
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      a80490c5
  3. 18 Oct, 2018 6 commits
  5. 17 Oct, 2018 17 commits
  7. 16 Oct, 2018 2 commits
  9. 15 Oct, 2018 6 commits
  11. 12 Oct, 2018 1 commit