[PATCH v3 0/8] mmc: zynqmp_sdhci: Add support for Tap delay

[Michal Simek]

Hi,

this patchset adding support for Tap delay programming for ZynqMP and
Versal.
Based on mainline discussion also DT properties have been introduced which
are documented here.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/Documentation/devicetree/bindings/mmc/mmc-controller.yaml?h=v5.7-rc6&id=fec81c5bca2499b4a263667860018c2ce47f4f51
The patchset is using these DT properties which are optional.
Default values are also listed.

The patchset is based on:
https://lists.denx.de/pipermail/u-boot/2020-May/410326.html

Also new code is adding checking for SOCs which are not needed at that time
when patch is applied (For example "mmc: zynq_sdhci: Read clock phase
delays from dt" and IS_ENABLED(CONFIG_ARCH_ZYNQMP)...
But I kept it there for more cleaner patches built on the top.

Thanks,
Michal


Changes in v3:
 - replace host->version by SDHCI_GET_VERSION(host) reported by Jaehoon
 - replace host->version by SDHCI_GET_VERSION(host) reported by Jaehoon

Changes in v2:
 - Timing macro's are common to all mmc drivers, hence remove zynq_sdhci
   from subject and description.
 - Add common function to set tapdelays based on the values read from DT
 - Remove tapdelay settings based on speed

Ashok Reddy Soma (6):
  Revert "mmc: zynq: parse dt when probing"
  mmc: Define timing macro's
  mmc: zynq_sdhci: Set tapdelays based on clk phase delays
  mmc: zynq_sdhci: Add clock phase delays for Versal
  mmc: zynq_sdhci: Extend UHS timings till hs200
  mmc: zynq_sdhci: Add common function to set input/output tapdelays

Michal Simek (2):
  mmc: zynq_sdhci: Move macro to the top
  mmc: zynq_sdhci: Read clock phase delays from dt

 board/xilinx/zynqmp/tap_delays.c | 199 +++------------
 drivers/mmc/sdhci.c              |   3 +-
 drivers/mmc/zynq_sdhci.c         | 406 +++++++++++++++++++++++++++++--
 include/mmc.h                    |  13 +
 include/sdhci.h                  |   1 +
 include/zynqmp_tap_delay.h       |   5 +-
 6 files changed, 434 insertions(+), 193 deletions(-)

-- 
2.28.0