Subversion Repositories openrisc

2001-11-26  Jesper Skov  

        * src/hal_misc.c (hal_msbit_index): Fixed.

2001-04-24  Jonathan Larmour  

        * src/vectors.S: Support daft platforms like the CEB which have

        default on-chip flash that vector NMI to 2 insns after reset.

        Also place hal_v85x_ice_syscall_info in fixed location, only

        for ROM/ROMRAM builds.

2001-03-28  Jonathan Larmour  

        * src/vectors.S: Overhaul...

        Make interrupt processing path faster, especially by implementing

        CYGDBG_HAL_COMMON_INTERRUPTS_SAVE_MINIMUM_CONTEXT

        Add ROMRAM startup support

        Pass in correct argument to exception_handler

        Call DSRs with parameter flushback area

        Add __allow_nmi as a somewhat kludgy means of determining

        whether NMIs should be ignored - important if the board resets

        and the vector tables are temporarily inconsistent.

        Initialize __vsr_table statically.

        Add some generic elements of ICE debugging support

        * src/v85x.ld: Remove - redundant.

        * src/hal_mk_defs.c (main): Update to reflect new vector names

        (to match official NEC docs)

        * src/hal_misc.c (exception_handler): Remove cygmon cruft.

        (hal_arch_default_isr): Report spurious interrupts.

        (hal_idle_thread_action): use halt instruction

        * include/hal_arch.h: Remove obsolete comment reference to arch.inc.

        * include/basetype.h: No need to include 

        * include/hal_io.h: Ditto.

        * include/nec-stub.h: Similarly for 

        * cdl/hal_v85x.cdl: Move CYGHWR_HAL_V85X_CPU_FREQ into platforms

        (and make Hz, not MHz).

        Add generic ICE debugging interface.

        Description tidies.

2001-01-26  Jonathan Larmour  

        * include/hal_intr.h: Move HAL_STUB_PLATFORM_RESET and

        HAL_STUB_PLATFORM_RESET_ENTRY here from platform stub headers.

        Also rename to HAL_PLATFORM_RESET and HAL_PLATFORM_RESET_ENTRY

        * src/vectors.S (_hal_reset_board): Renamed from hal_plf_reset_board

2001-01-18  Nick Garnett  

        * src/vectors.S: Added underscore to reference to

        cyg_scheduler_sched_lock, since CYGBLD_ATTRIB_ASM_ALIAS() now adds

        one automatically.

2000-10-20  Jesper Skov  

        * src/hal_misc.c: Update __mem_fault_handler declaration.

2000-10-16  Jonathan Larmour  

        * include/hal_arch.h (CYGARC_JMP_BUF_SIZE): Define hal_jmp_buf in

        terms of this.

2000-10-09  Gary Thomas  

        * src/vectors.S (start): Need to handle ^C for all applications.

2000-09-13  Jonathan Larmour  

        * src/vectors.S: When calling C functions, ensure there is 16 bytes

        space for the parameter flushback area (as per the calling convention)

        on the stack

2000-09-07  Jonathan Larmour  

        * include/basetype.h: Don't need special alignment after all - it was

        a bug elsewhere.

2000-09-06  Gary Thomas  

        * include/basetype.h: Need special alignment to match the way

        the compiler/linker actually do things.

        * cdl/hal_v85x.cdl: Improve variant handling and specification.

2000-08-30  Gary Thomas  

        * src/vectors.S (start): Allow programs to field NMI exceptions.

2000-07-24  Jonathan Larmour  

        * include/basetype.h: Removed definition of CYG_LABEL_NAME().

        * src/v85x.ld:  Switched to new table definition mechanism.

2000-07-21  Gary Thomas  

        * src/vectors.S (_hal_plf_reset_board): Needs to be defined in all

        configurations.

2000-06-27  Jesper Skov  

        * src/vectors.S:

        * src/hal_mk_defs.c:

        Fix compiler warnings.

        * src/hal_misc.c (hal_default_isr): Let common version do the

        checks.

2000-06-15  Gary Thomas  

        * src/hal_mk_defs.c:

        * src/vectors.S:

        * src/hal_misc.c (hal_default_isr): Update for new debug

        vector support.

        * include/hal_intr.h:

        * src/vectors.S (do_interrupt): Proper handling of chained

        interrupts.

2000-06-12  Gary Thomas  

        * src/vectors.S (return_from_exception_or_interrupt): Revert

        reorg change (05-26) which broke GDB breakpoints.

2000-06-08  Jesper Skov  

        * include/hal_arch.h (CYGARC_HAL_SAVE_GP, CYGARC_HAL_RESTORE_GP):

        Added.

2000-05-26  Gary Thomas  

        * src/vectors.S: Slight reorg of trap vectors (more readable).

2000-05-25  John Dallaway  

        * cdl/hal_v85x.cdl: Tidy display strings.

2000-05-25  Gary Thomas  

        * src/vectors.S: Handle different chips (number of interrupt

        sources differs, exception table is altered, etc).

        * include/hal_intr.h: Actual interrupt layout now defined by

        variant/platform since these differ depending on the chip.

2000-05-03  Gary Thomas  

        * include/hal_arch.h: New breakpoint instruction ("br *").

2000-04-14  Gary Thomas  

        * src/hal_misc.c (exception_handler): Proper handling of nested

        [watchdog] interrupts - don't corrupt GDB registers.

        * src/hal_mk_defs.c: Add some symbols required for NMI handling.

        * src/vectors.S (return_from_exception_or_interrupt):

        Properly handle different cases for exception, NMI and ISR.

        * include/hal_intr.h (HAL_TRANSLATE_VECTOR): Ignore interrupt

        chaining - doesn't happen on this hardware.

2000-04-11  Gary Thomas  

        * src/vectors.S (exception): Handle NMI.  In particular, need to

        have appropriate bits set so they clear and also get the state

        from the proper save registers.

        (exception): Register save was wrong - ROM only.

2000-03-31  Gary Thomas  

        * src/hal_mk_defs.c: Add definition for 'ep' register.

        * include/hal_intr.h:

        * cdl/hal_nec.cdl: Add config option to choose between inline and

        real functions for interrupt macros.

        * src/vectors.S: Tune up - use SLD/SST for smaller, faster code

        in context load/save routines.  Also remove IRQ trace/debug code.

2000-03-30  Gary Thomas  

        * src/vectors.S (do_interrupt): Can't use R13 across function calls.

        This caused instability when turning on kernel instrumentation.

        * include/hal_intr.h: Use out-of-line code for interrupt functions

        for tracing/testing.

        * src/vectors.S: Working support for separate interrupt stack.

        Some debug/trace code left in.

        * src/hal_mk_defs.c:

        * include/hal_arch.h: Documented API does not match actual GCC

        register usage. Need to save R1/R2/R4/R5 for setjmp/longjmp.

2000-03-27  Gary Thomas  

        * src/vectors.S (do_interrupt): Pass regs to ISR & DSR.

        * include/basetype.h: Endian-ness was incorrect.

        * include/hal_arch.h:

        * src/hal_mk_defs.c: Complete setjmp/longjmp support.

        * src/vectors.S: Add interrupt stack.

2000-03-21  Gary Thomas  

        * src/vectors.S (_hal_plf_reset_board): Add board reset function.

        * include/hal_arch.h (CYGHWR_TEST_PROGRAM_EXIT): Define RESET for ROM

        based programs.

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