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  1. 08 Apr, 2019 2 commits
    • Joel Hutton's avatar
      cot-desc: optimise memory further · 30070427
      Joel Hutton authored 
      

This changes the auth_img_desc_t struct to have pointers to struct
arrays instead of struct arrays. This saves memory as many of these
were never used, and can be NULL pointers. Note the memory savings are
only when these arrays are not initialised, as it is assumed these
arrays are fixed length. A possible future optimisation could allow for
variable length.

memory diff:
bl1:        bl2:
    text        text
      -12         -12
    bss         bss
      -1463       0
    data        data
      -56         -48
    rodata      rodata
      -5688       -2592
    total       total
      -7419       -2652

Change-Id: I8f9bdedf75048b8867f40c56381e3a6dc6402bcc
Signed-off-by: default avatarJoel Hutton <Joel.Hutton@Arm.com>
      30070427
    • Joel Hutton's avatar
      Reduce memory needed for CoT description · 0b6377d1
      Joel Hutton authored 
      

When Trusted Board Boot is enabled, we need to specify the Chain of
Trust (CoT) of the BL1 and BL2 images. A CoT consists of an array
of image descriptors. The authentication module assumes that each
image descriptor in this array is indexed by its unique image
identifier. For example, the Trusted Boot Firmware Certificate has to
be at index [TRUSTED_BOOT_FW_CERT_ID].

Unique image identifiers may not necessarily be consecutive. Also,
a given BL image might not use all image descriptors. For example, BL1
does not need any of the descriptors related to BL31. As a result, the
CoT array might contain holes, which unnecessarily takes up space in
the BL binary.

Using pointers to auth_img_desc_t structs (rather than structs
themselves) means these unused elements only use 1 pointer worth of
space, rather than one struct worth of space. This patch also changes
the code which accesses this array to reflect the change to pointers.

Image descriptors not needed in BL1 or BL2 respectively are also
ifdef'd out in this patch. For example, verifying the BL31 image is
the responsibility of BL2 so BL1 does not need any of the data
structures describing BL31.

memory diff:
bl1:        bl2:
    text        text
      -20         -20
    bss         bss
      -1463       0
    data        data
      -256        -48
    rodata      rodata
      -5240       -1952
    total       total
      -6979       -2020

Change-Id: I163668b174dc2b9bbb183acec817f2126864aaad
Signed-off-by: default avatarJoel Hutton <Joel.Hutton@Arm.com>
      0b6377d1
  3. 03 Apr, 2019 3 commits
  5. 02 Apr, 2019 10 commits
  7. 01 Apr, 2019 2 commits
  9. 22 Mar, 2019 1 commit
  11. 13 Mar, 2019 2 commits
  13. 12 Mar, 2019 3 commits
    • Paul Beesley's avatar
      drivers: Remove TODO from io_fip.c · 7d721816
      Paul Beesley authored 
      

The comment suggests checking version numbers and
a checksum but there doesn't seem to be any usable
data for either of these.

For example, fip_toc_header_t doesn't contain any
version information and neither does fip_toc_entry_t.

As the function name "is_valid_header" suggests, this
function is not concerned with checksumming any of
the table of contents entries.

Change-Id: I8673ae5dd37793771760169f26b2f55c15fbf587
Signed-off-by: default avatarPaul Beesley <paul.beesley@arm.com>
      7d721816
    • Paul Beesley's avatar
      drivers: Remove TODO from io_storage · 9a2fffb8
      Paul Beesley authored 
      

This TODO was added five years ago so I assume that there is not
going to be a shutdown API added after all.

Change-Id: If0f4e2066454df773bd9bf41ed65d3a10248a2d3
Signed-off-by: default avatarPaul Beesley <paul.beesley@arm.com>
      9a2fffb8
    • Tien Hock, Loh's avatar
      drivers: synopsys: Fix synopsys MMC driver · 3d0f30bb
      Tien Hock, Loh authored 
      

There are some issues with synopsys MMC driver:
- CMD8 should not expect data (for SD)
- ACMD51 should expect data (Send SCR for SD)
- dw_prepare should not dictate size to be MMC_BLOCK_SIZE, block size is
now handled in the dw_prepare function
- after the CMD completes, when doing dw_read, we need to invalidate cache
and wait for the data transfer to complete
- Need to set FIFO threshold, otherwise DMA might never get the interrupt
to read or write
Signed-off-by: default avatarTien Hock, Loh <tien.hock.loh@intel.com>
      3d0f30bb
  15. 08 Mar, 2019 1 commit
  17. 07 Mar, 2019 1 commit
    • Tien Hock, Loh's avatar
      drivers: mmc: Fix some issues with MMC stack · a468e756
      Tien Hock, Loh authored 
      

Some bugs in MMC stack needs to be fixed:
- scr cannot be local as this will cause cache issue when invalidating
after the read DMA transfer is completed
- ACMD41 needs to send voltage information in initialization, otherwise the
command is a query, thus will not initialize the controller
- when checking device state, retry until the retries counter goes to zero
before failing
Signed-off-by: default avatarTien Hock, Loh <tien.hock.loh@intel.com>
      a468e756
  19. 04 Mar, 2019 2 commits
  21. 28 Feb, 2019 2 commits
  23. 26 Feb, 2019 1 commit
    • Ying-Chun Liu (PaulLiu)'s avatar
      rpi3: sdhost: SDHost driver improvement · 2c8ef2ae
      Ying-Chun Liu (PaulLiu) authored 
      

This commit improves the SDHost driver for RPi3 as following:
 * Unblock MMC_CMD(17). Using MMC_CMD(17) is more efficient on
   block reading.
 * In some low probability that SEND_OP_COND might results CRC7
   error. We can consider that the command runs correctly. We don't
   need to retry this command so removing the code for retry.
 * Using MMC_BUS_WIDTH_1 as MMC default value to improve the stability.
 * Increase the clock to 50Mhz in data mode to speed up the io.
 * Change the pull resistors configuration to gain more stability.
Signed-off-by: default avatarYing-Chun Liu (PaulLiu) <paulliu@debian.org>
      2c8ef2ae
  25. 20 Feb, 2019 1 commit
  27. 19 Feb, 2019 1 commit
  29. 14 Feb, 2019 8 commits