[PATCH v7 00/13] mmc: Add support to Marvell Xenon SD Host Controller

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




Hello,

This the seventh version of the series adding support for the SDHCI
Xenon controller. It can be currently found on the Armada 37xx and the
Armada 7K/8K but will be also used in more Marvell SoC (and not only
the mvebu ones actually).

v6->v7:
 - Add comments on vqmmc and vmmc in examples in dt binding doc.

 - Fix all the issues pointed out by Ulf and Adrian:

   - Align the prefix of function and variable names.
   - Replace the if-else with switch statements when checking MMC_TIMING_*
   - Remove the spinlocks in set_ios.
   - Optimize the delay loop as Adrian patch does.
   - Add release of phy params structures

- Add check of Vqmmc supply in Xenon signal voltage switch. If Vqmmc
  regulator doesn't exist, skip standard SD signal voltage regulator
  switch process.

- Remove parse of child node mmc-card. Wait for a better solution.

v5->v6:

- Add a generic "mmc-card" parse in core layer.

- Fix the spelling issues in Xenon dt binding doc and drivers.

- Remove descriptions to common mmc properties from Xenon dt binding
  doc.

- Split compatible string "marvell,armada-8k-sdhci" into
 "marvell,armada-ap806-sdhci" and "marvell,armada-cp110-sdhci".

- Also updates the example in Xenon dt binding doc.

- Remove unnecessary dependency on MMC_SDHCI from Xenon entry in
  Kconfig.

- Move Xenon specific dt parse into a separate function.

- Adjust warnings and condition check in Xenon PHY setting, to remove
 fragile hs200->hs400/hs400->hs200 sequence check function.

- Enable PHY Slow Mode in MMC_TIMING_LEGACY timing if PHY Slow Mode is
 required in dts.

- Add a patch allowing dts backwards compatible for the clock

v4->v5:

- Remove the patch to export sdhci_execute_tuning(). It is already
  exported in v4.10.

- Introduce a patch adding a missing clock for the sdhci controller
  present on the CP master for A7K/A8K. There is no build dependency
  but obviously this patch is need to use the sdhci controller present
  on the CP part.

- Adjust Xenon return setup, to avoid being overwritten by
   sdhci_add_host().

- Change Xenon register definition prefix to "XENON_".

-  Fix typos in Xenon driver and dt-binding docs.

- Change compatible string "marvell,armada-7000-sdhci" to
  "marvell,armada-8k-sdhci". Actually the Armada 7K SoCs are a subset
  of the Armada 8K SoCs. Moreover, the use of the '000' is not
  consistent with all the other compatible string already used for the
  Armada 7K/8K family.

- Added the Tested-by from Russell King on an Armada 8K based board.

v3 -> v4:
For this version a few change have been done:
- fixes 2 bug  reported by kbuild-bot
  - remove extra of_node_put()
  - convert 0 in false for function returning boolean

- add a device tree node for the sdhci controller present on the CP
  master for A7K/A8K. It also led to rename the sdhci0 node on AP to
  ap_sdhci0 to make a distinction with the one present on CP master.

v2 -> v3
I think that now most (if not all) the remarks had been taking into
account since the second version. According to Ziji Hu, here are the
following changes:
" Changes in V3:
  Adjust and improve Xenon DT bindings. Move some caps setting from driver into
  DT. Use mmc-card sub-node to represent eMMC type.
  Remove PHY Sampling Fixed Delay Line scan in lower speed mode.
  Improve Xenon probe and ->init_card() functions.
  Export sdhci_enable_sdio_irq() and implement own SDIO IRQ control.
  Split PHY patch into two smaller patches.
  Temporarily remove AXI clock before its implementation is improved."

Besides this changes I also
- Removed the sdhci-xenon-phy.h and moved its content in the
shc-xenon-phy.c file.
- Fixed the tuning-count usage
- Managed the error case for clk_prepare_enable

For the record the change from v1 was:
" Changes in V2:
  rebase on v4.9-rc2.
  Re-write Xenon bindings. Ajust Xenon DT property naming.
  Add a new DT property to indicate eMMC card type, instead of using
  variable card_candidate.
  Clear quirks SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 in Xenon platform data
  Add support to HS400 retuning."

Thanks,

Gregory

Gregory CLEMENT (4):
  clk: apn806: Turn the eMMC clock as optional for dts backwards compatible
  arm64: dts: marvell: add eMMC support for Armada 37xx
  arm64: dts: marvell: add sdhci support for Armada 7K/8K
  arm64: configs: enable SDHCI driver for Xenon

Hu Ziji (8):
  mmc: sdhci: Export sdhci_set_ios() from sdhci.c
  mmc: sdhci: Export sdhci_start_signal_voltage_switch() in sdhci.c
  mmc: sdhci: Export sdhci_enable_sdio_irq() from sdhci.c
  dt: bindings: Add bindings for Marvell Xenon SD Host Controller
  mmc: sdhci-xenon: Add Marvell Xenon SDHC core functionality
  mmc: sdhci-xenon: Add support to PHYs of Marvell Xenon SDHC
  mmc: sdhci-xenon: Add SoC PHY PAD voltage control
  MAINTAINERS: add entry for Marvell Xenon MMC Host Controller drivers

Konstantin Porotchkin (1):
  clk: apn806: Add eMMC clock to system controller driver

 Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.txt | 170 +-
 MAINTAINERS                                                   |   7 +-
 arch/arm64/boot/dts/marvell/armada-3720-db.dts                |   9 +-
 arch/arm64/boot/dts/marvell/armada-37xx.dtsi                  |  11 +-
 arch/arm64/boot/dts/marvell/armada-7040-db.dts                |  14 +-
 arch/arm64/boot/dts/marvell/armada-8040-db.dts                |  12 +-
 arch/arm64/boot/dts/marvell/armada-ap806.dtsi                 |  14 +-
 arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi          |  11 +-
 arch/arm64/configs/defconfig                                  |   1 +-
 drivers/clk/mvebu/ap806-system-controller.c                   |  21 +-
 drivers/mmc/host/Kconfig                                      |   8 +-
 drivers/mmc/host/Makefile                                     |   3 +-
 drivers/mmc/host/sdhci-xenon-phy.c                            | 835 +++++++-
 drivers/mmc/host/sdhci-xenon.c                                | 548 +++++-
 drivers/mmc/host/sdhci-xenon.h                                | 101 +-
 drivers/mmc/host/sdhci.c                                      |  11 +-
 drivers/mmc/host/sdhci.h                                      |   4 +-
 17 files changed, 1774 insertions(+), 6 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.txt
 create mode 100644 drivers/mmc/host/sdhci-xenon-phy.c
 create mode 100644 drivers/mmc/host/sdhci-xenon.c
 create mode 100644 drivers/mmc/host/sdhci-xenon.h

base-commit: a645cc1df4ff41ba54a2fb839962b8ff142121d9
-- 
git-series 0.9.1
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux