From: Pavel Pisa <p...@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 -- 1.9.1 _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
