[PATCH v2 0/4] TMS570 pinmux support and pin definitions update

[pisa at cmp.felk.cvut.cz]

From: Pavel Pisa <pisa at cmp.felk.cvut.cz>

These enhancements are laying already for long term in TMS570
development branch for RTEMS 4.11 and they should be
available for mainline as well.

  https://github.com/AoLaD/rtems/tree/tms570-bsp-with-hwinit

The main purpose of these changes is attempt to archive small but
required step in direction to provide BSP with complete initialization
included.

If the review is positive I push changes to mainline.

Pinmux definition allows easy setup of individual pin function at runtime

  tms570_bsp_pin_set_function(TMS570_BALL_V5_MDCLK, TMS570_PIN_FNC_AUTO);

and even mechanism to setup all registers by single call

  #define TMS570_PINMMR_INIT_LIST(per_pin_action, common_arg) \
    per_pin_action(common_arg, TMS570_BALL_W10_GIOB_3) \
    per_pin_action(common_arg, TMS570_BALL_A5_GIOA_0) \
  ...

  const uint32_t tms570_pinmmr_init_data[] = {
    TMS570_PINMMR_REG_VAL(0, TMS570_PINMMR_INIT_LIST),
    TMS570_PINMMR_REG_VAL(1, TMS570_PINMMR_INIT_LIST),
    TMS570_PINMMR_REG_VAL(2, TMS570_PINMMR_INIT_LIST),
    TMS570_PINMMR_REG_VAL(3, TMS570_PINMMR_INIT_LIST),
  ...
    TMS570_PINMMR_REG_VAL(30, TMS570_PINMMR_INIT_LIST),
  };

  void
  tms570_pinmux_init(void)
  {
    tms570_bsp_pinmmr_config(tms570_pinmmr_init_data, 0,
                  RTEMS_ARRAY_SIZE(tms570_pinmmr_init_data));
  }

Serial hardware initialization appropriate for startup
from unconfigured state is includes as well.

Complete initialization code is much more complex pending task.
If there is interrest I would prepare BSP configuration option
to build with complete HalCoGen files as well and call appropriate
functions during startup.

Code has been tested over OpenOCD to run from SDRAM when
board is preconfigured by

  https://github.com/hornmich/tms570ls3137-hdk-sdram/tree/master/SDRAM_SCI_configuration

and to work with lwIP TMS570 port included in

  https://sourceforge.net/p/ulan/lwip-omk/

RTEMS ticker, OMK lwIP test and dlopen test with ELF load
run successfully on BSP. TMS570LS3137 in revission D
is required to run successfully from SDRAM due to more
critical errata. Run from internal RAM or Flash should
not be affected by these erratas so much.

Pavel Pisa (4):
  bsp/tms570: include package balls and PINMMR registers mapping for
    TMS570LS3135ZWT chip.
  bsp/tms570: update pinmux to provide support for initialization lists
    and clear of alt outputs.
  bsp/tms570: include complete peripheral initialization to SCI driver.
  bsp/tms570: regenerate preinstall makefile by bootstrap -p.

 c/src/lib/libbsp/arm/tms570/Makefile.am            |   3 +
 c/src/lib/libbsp/arm/tms570/console/tms570-sci.c   |  38 +-
 .../lib/libbsp/arm/tms570/include/tms570-pinmux.h  | 136 ++--
 c/src/lib/libbsp/arm/tms570/include/tms570-pins.h  |  10 +
 c/src/lib/libbsp/arm/tms570/include/tms570.h       |   3 +
 .../arm/tms570/include/tms570ls3137zwt-pins.h      | 690 +++++++++++++++++++++
 c/src/lib/libbsp/arm/tms570/pinmux/pinmux.c        | 123 +++-
 c/src/lib/libbsp/arm/tms570/preinstall.am          |   8 +
 8 files changed, 940 insertions(+), 71 deletions(-)
 create mode 100644 c/src/lib/libbsp/arm/tms570/include/tms570-pins.h
 create mode 100644 c/src/lib/libbsp/arm/tms570/include/tms570ls3137zwt-pins.h

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1.9.1