[PATCH v4 0/7] Arasan sdhci driver updates

[Ashok Reddy Soma]

This patch series updates/fixes below things:
 - Handle errors from tapdelay functions and return to set_delay()
 - Add ZynqMP firmware related enums which are used in sdhci driver
 - Replace mmio_write() with firmware call xilinx_pm_request()
 - Move tapdelay setting code from tap_delays.c to driver and remove
   tap_dealy.c and zynqmp_tap_delay.h
 - Change variable name from deviceid to node_id in couple of functions
   for consistancy
 - Add a workaround for sd card detect stable issue for Versal platforms
 - Use set_control_reg from sdhci.c

These patches are based on below microblaze U-Boot 'next' branch.
https://source.denx.de/u-boot/custodians/u-boot-microblaze/-/commits/next

Changes in v4:
 - Rebase to latest u-boot-microblaze custodian 'next' branch
 - Initialized all enum pm_ioctl_id elements with explicit values

Changes in v3:
 - Added new line after return at two places
 - As we are seeing issues with SPL flow, keep zynqmp_mmio_write method
   to set tapdelay's and DLL resets. Add xilinx_pm_request on top of it
   for regular flow.
 - Changed the patch title to reflect these changes
 - Make the changes on top of patch 4/7 to move the code to zynq_sdhci.c

Changes in v2:
 - Split patch 1/7 to two patches, one for zynq_sdhci and other one
   for sdhci
 - This is the second patch that has been split from 1/7
 - This covers changes for sdhci driver separately
 - Added a debug print in case of error from set_delay()
 - Added comment for why 1ms delay is needed between DLL assert and
 release
 - Remove mmc->dev->seq_ and use priv->deviceid instead
 - Changed return error from -EIO to -ETIMEDOUT in arasan_sdhci_probe()
   in card detect state stable workaround

Ashok Reddy Soma (5):
  mmc: zynq_sdhci: Return errors from arasan_sdhci_set_tapdelay
  mmc: sdhci: Change prototype of set_delay to return errors
  mmc: zynq_sdhci: Add xilinx_pm_request() method to set tapdelays
  mmc: zynq_sdhci: Move setting tapdelay code to driver
  mmc: zynq_sdhci: Use set_control_reg from sdhci.c

T Karthik Reddy (2):
  zynqmp_firmware: Add zynqmp firmware related enums
  mmc: zynq_sdhci: Wait till sd card detect state is stable

 board/xilinx/zynqmp/Makefile     |   2 -
 board/xilinx/zynqmp/tap_delays.c | 101 -------------
 drivers/mmc/sdhci.c              |  10 +-
 drivers/mmc/zynq_sdhci.c         | 242 ++++++++++++++++++++++++++-----
 include/sdhci.h                  |   2 +-
 include/zynqmp_firmware.h        | 127 ++++++++++++++++
 include/zynqmp_tap_delay.h       |  21 ---
 7 files changed, 338 insertions(+), 167 deletions(-)
 delete mode 100644 board/xilinx/zynqmp/tap_delays.c
 delete mode 100644 include/zynqmp_tap_delay.h

-- 
2.17.1