[PATCH v4 0/7] ARM: davinci: add support for the am1808 based enbw_cmc board

Heiko Schocher hs at denx.de
Tue May 22 09:55:13 EDT 2012

this patchserie add support for the davinci am1808 based
enbw_cmc board.

changes for v2:
Post this patchserie now as v2, as reworked in the
comments I got for the RFC serie.

changes for v3:
- Interrupt Controller:
  - comment from Sergei Shtylyov:
    - rename compatible" prop to "ti,cp_intc"
    - cp_intc_init() is now also for the of case
      the name of the init function (it calls the
      "new" __cp_intc_init() function, which was
      the "old" cp_intc_init()). Through this
      rework the changes for OF is better visible.
      As the OF case uses the irq_domain rework from
      Grant Likely, maybe the none OF case can use
      this also, but this should be tested on a hw ...

changes for v4:
- Interrupt Controller:
  - split in two patches as Nori Sekhar suggested
    one for the irq_domain change
    one for DT support
  - add comment from Grant Likely for the DT part:
    remove if/else clause, not needed.
    Make use of DT runtime configurable
    The non OF case is not tested!
Got no comments to the following points, I noted in the
RFC series, so posting this patchseries with them:

- ARM: davinci: configure davinci aemif chipselects through OF
  not moved to mfd, as mentioned in this discussion:
  instead use a phandle in the DTS, so drivers which
  uses the davinci aemif, can call davinci_aemif_setup_timing_of()

  This is just thought as an RFC ... The enbw_cmc board
  support not really need to setup this bus timings, as
  they are setup in U-Boot ... but I want to post this,
  as I think, it is a nice to have, and I am not really
  sure, if this has to be a MFD device (If so, all bus
  interfaces for other SoCs should be converted also to
  MFD devices) ... as an example how this can be used
  I add this to the davinci nand controller OF support
  patch, in this patchserie.

- ARM: davinci: mux: add OF support
  I want to get rid of the pin setup code in board code ...
  This patch introduces a davinci_cfg_reg_of() function,
  which davinci drivers can call, if they found a
  "pinmux-handle", so used in the following drivers in
  this patchserie:


  This is removed for v4 serie, as Nori Sekhar suggested.

- post this board support with USB support, even though
  USB is only working with the 10 ms "workaround", posted here:
  I see this issue also on the AM1808 TMDXEXP1808L evalboard.

  change for v4:
  The 10 ms delay is no longer needed, see discussion here:


  shows the way to go ...

- MMC and USB are not using OF support yet, ideas how to port
  this are welcome. I need for USB and MMC board specific
  callbacks, how to solve this with OF support?

Signed-off-by: Heiko Schocher <hs at denx.de>
Cc: linux-arm-kernel at lists.infradead.org
Cc: devicetree-discuss at lists.ozlabs.org
Cc: davinci-linux-open-source at linux.davincidsp.com
Cc: linux-mtd at lists.infradead.org
Cc: linux-i2c at vger.kernel.org
Cc: netdev at vger.kernel.org
Cc: David Woodhouse <dwmw2 at infradead.org>
Cc: Ben Dooks <ben-linux at fluff.org>
Cc: Wolfram Sang <w.sang at pengutronix.de>
Cc: Sekhar Nori <nsekhar at ti.com>
Cc: Kevin Hilman <khilman at ti.com>
Cc: Wolfgang Denk <wd at denx.de>
Cc: Sergei Shtylyov <sshtylyov at mvista.com>
Cc: Grant Likely <grant.likely at secretlab.ca>

Heiko Schocher (7):
  ARM: davinci, intc: Add irq domain support
  ARM: davinci, intc: Add OF support for TI interrupt controller
  ARM: davinci: configure davinci aemif chipselects through OF
  ARM: davinci: net: davinci_emac: add OF support
  ARM: davinci: i2c: add OF support
  ARM: mtd: nand: davinci: add OF support for davinci nand controller
  ARM: davinci: add support for the am1808 based enbw_cmc board

 .../devicetree/bindings/arm/davinci/aemif.txt      |  119 +++++++
 .../devicetree/bindings/arm/davinci/i2c.txt        |   31 ++
 .../devicetree/bindings/arm/davinci/intc.txt       |   27 ++
 .../devicetree/bindings/arm/davinci/nand.txt       |   72 ++++
 .../devicetree/bindings/net/davinci_emac.txt       |   41 +++
 arch/arm/boot/dts/enbw_cmc.dts                     |  172 +++++++++
 arch/arm/configs/enbw_cmc_defconfig                |  123 +++++++
 arch/arm/mach-davinci/Kconfig                      |    9 +
 arch/arm/mach-davinci/Makefile                     |    1 +
 arch/arm/mach-davinci/aemif.c                      |   86 +++++-
 arch/arm/mach-davinci/board-enbw-cmc.c             |  374 ++++++++++++++++++++
 arch/arm/mach-davinci/cp_intc.c                    |   74 ++++-
 arch/arm/mach-davinci/include/mach/aemif.h         |    1 +
 arch/arm/mach-davinci/include/mach/uncompress.h    |    1 +
 drivers/i2c/busses/i2c-davinci.c                   |   32 ++
 drivers/mtd/nand/davinci_nand.c                    |   80 ++++-
 drivers/net/ethernet/ti/davinci_emac.c             |   87 +++++-
 17 files changed, 1317 insertions(+), 13 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/davinci/aemif.txt
 create mode 100644 Documentation/devicetree/bindings/arm/davinci/i2c.txt
 create mode 100644 Documentation/devicetree/bindings/arm/davinci/intc.txt
 create mode 100644 Documentation/devicetree/bindings/arm/davinci/nand.txt
 create mode 100644 Documentation/devicetree/bindings/net/davinci_emac.txt
 create mode 100644 arch/arm/boot/dts/enbw_cmc.dts
 create mode 100644 arch/arm/configs/enbw_cmc_defconfig
 create mode 100644 arch/arm/mach-davinci/board-enbw-cmc.c


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