linux-kernel - [PATCH 0/2] mmc: sdhci-milbeaut: add Milbeaut SD driver

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Date:   Fri, 26 Apr 2019 11:06:21 +0900
From:   Takao Orito <orito.takao@...ionext.com>
To:     ulf.hansson@...aro.org, robh+dt@...nel.org, mark.rutland@....com
Cc:     linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, masami.hiramatsu@...aro.org,
        jaswinder.singh@...aro.org, sugaya.taichi@...ionext.com,
        kasai.kazuhiro@...ionext.com, kanematsu.shinji@...ionext.com,
        orito.takao@...ionext.com
Subject: [PATCH 0/2] mmc: sdhci-milbeaut: add Milbeaut SD driver

The following patches add driver for SD Host controller on
Socionext's Milbeaut M10V platforms.

SD Host controller on Milbeaut is consist of two controller parts.
One is core controller F_SDH30, this is similar to sdhci-fujitsu
controller.
Another is bridge controller. This bridge controller is not compatible
with sdhci-fujitsu controller. This is special for Milbeaut series.

It has the several parts,
 - reset control
 - clock enable / select for SDR50/25/12
 - hold control of DATA/CMD line
 - select characteristics for WP/CD/LED line
 - Re-tuning control for mode3
 - Capability setting
   Timeout Clock / Base Clock / Timer Count for Re-Tuning /
   Debounce period
These requires special procedures at reset or clock enable/change or
 further tuning of clock.

Takao Orito (2):
  dt-bindings: mmc: add DT bindings for Milbeaut SD controller
  mmc: sdhci-milbeaut: add Milbeaut SD controller driver

 .../devicetree/bindings/mmc/sdhci-milbeaut.txt     |  35 ++
 drivers/mmc/host/Kconfig                           |  11 +
 drivers/mmc/host/Makefile                          |   1 +
 drivers/mmc/host/sdhci-milbeaut.c                  | 393 +++++++++++++++++++++
 drivers/mmc/host/sdhci_f_sdh30.c                   |  26 +-
 drivers/mmc/host/sdhci_f_sdh30.h                   |  32 ++
 6 files changed, 473 insertions(+), 25 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-milbeaut.txt
 create mode 100644 drivers/mmc/host/sdhci-milbeaut.c
 create mode 100644 drivers/mmc/host/sdhci_f_sdh30.h

-- 
1.9.1