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/Do... 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(-)