[U-Boot] [PATCH 00/11] OMAP: Move SATA to use block driver model

[Jean-Jacques Hiblot]

This series adds support for SATA using the driver model on omap platforms.
It is based on the work of Mugunthan V N <mugunthanvnm at ti.com> in Feb 2016

The first 2 patches are preparatory work.
The 3rd patch adds a new framework to handle PHYs in a generic manner. The idea
is to move the phy initialization out of the board-specific code into a proper
driver. The link between the phy device and the controller device is done in
by device-tree as it's done in linux. The API to control a phy has been copied
from linux, excpet that the functions are prefixed by 'generic_phy_' instead of
just 'phy_' because phy_reset() is already used to handle the Ethernet phys.
The 5th patch adds a phy driver for the pipe3 sata phy found in the
omaps/am5x/dra7x SOCs.
The 6th patch allows the device under the node ocp2scp at 4a090000 to be probed.
The 7th patch implements a driver for the SATA controller found in the
omaps/am5x/dra7x SOCs.
The 8th patch is cosmetic and changes the interface of scsi_detect_dev()
The 9th patch moves the call to part_init() out of scsi_detect_dev(). This is
a preparatory work path #10.
The 10th patches fix a divide-by-0 error that happens in scsi_scan()
when DM is used and split scsi_scan() in 2 functions for clarity.
The last patch enables the DM sata by default for the dra7 platforms.

changes since v2:
* Added unit tests for generic PHY uclass.
* Changed the generic phy API to use a 'struct udevice*' to reference the phy
  device.
* Don't modify anymore the root Makefile.
* Updated the Kconfig with more details on the PHY framework.
* Use a Unique Lincense Identifier (SPDX)
* Use omap5-u-boot.dtsi to mark the ocp2scp bus as compatible with "simple-bus"
* Split scsi_scan() in 2 for clarity. The function was becoming too long.

changes since v1:
* changed the way the 'old' sata code is compiled out when DM_SCSI is enabled.
* added a new framework for PHY management.
* added a new driver for the PIPE3 phy and use it in the dwc_ahci driver.
* changed the interface of scsi_detect_dev() and moved the call part_init() out
  of it.
* modified the fix to scsi_scan() in order to call scsi_detect_dev() only once.
* the max_lun and max_id parameters are now taken from the device-tree.
* Updated the defconfig changes to include the PHY driver and its dependencies.

Jean-Jacques Hiblot (11):
  arm: omap: sata: move enable sata clocks to enable_basic_clocks()
  arm: omap: sata: compile out board-level sata code when CONFIG_DM_SCSI
    is defined
  drivers: phy: add generic PHY framework
  dm: test: Add tests for the generic PHY uclass
  drivers: phy: add PIPE3 phy driver
  dra7: dtsi: mark ocp2scp bus compatible with "simple-bus"
  drivers: block: dwc_ahci: Implement a driver for Synopsys DWC sata
    device
  scsi: make the LUN a parameter of scsi_detect_dev()
  scsi: move the partition initialization out of the scsi detection
  dm: scsi: fix divide-by-0 error in scsi_scan()
  defconfig: dra7xx_evm: enable CONFIG_BLK and disk driver model for
    SCSI

 arch/arm/dts/omap5-u-boot.dtsi      |   4 +
 arch/arm/mach-omap2/Makefile        |   2 +
 arch/arm/mach-omap2/omap5/hw_data.c |  12 ++
 arch/arm/mach-omap2/sata.c          |  23 ---
 arch/sandbox/dts/test.dts           |   9 +
 common/scsi.c                       |  98 +++++-----
 configs/dra7xx_evm_defconfig        |  12 +-
 configs/dra7xx_hs_evm_defconfig     |  11 +-
 configs/sandbox_defconfig           |   2 +
 configs/sandbox_noblk_defconfig     |   2 +
 configs/sandbox_spl_defconfig       |   3 +
 drivers/Kconfig                     |   2 +
 drivers/Makefile                    |   1 +
 drivers/block/Kconfig               |  10 +
 drivers/block/Makefile              |   1 +
 drivers/block/dwc_ahci.c            | 100 ++++++++++
 drivers/phy/Kconfig                 |  59 ++++++
 drivers/phy/Makefile                |   4 +
 drivers/phy/phy-uclass.c            |  64 +++++++
 drivers/phy/sandbox-phy.c           |  78 ++++++++
 drivers/phy/ti-pipe3-phy.c          | 365 ++++++++++++++++++++++++++++++++++++
 include/dm/uclass-id.h              |   1 +
 include/generic-phy.h               |  36 ++++
 test/dm/Makefile                    |   1 +
 test/dm/generic_phy.c               |  89 +++++++++
 25 files changed, 922 insertions(+), 67 deletions(-)
 create mode 100644 drivers/block/dwc_ahci.c
 create mode 100644 drivers/phy/Kconfig
 create mode 100644 drivers/phy/Makefile
 create mode 100644 drivers/phy/phy-uclass.c
 create mode 100644 drivers/phy/sandbox-phy.c
 create mode 100644 drivers/phy/ti-pipe3-phy.c
 create mode 100644 include/generic-phy.h
 create mode 100644 test/dm/generic_phy.c

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1.9.1