Subversion Repositories openrisc_me

2000-10-20  Jonathan Larmour  <jlarmour@redhat.com>

        * include/pkgconf/mlt_sparclite_sim_ram.mlt:
        Add heap1 section

        * include/pkgconf/mlt_sparclite_sim_ram.h:
        * include/pkgconf/mlt_sparclite_sim_ram.ldi:
        Regenerated

2000-02-10  Jesper Skov  <jskov@redhat.com>

        * cdl/hal_sparclite_sim.cdl: Added.

1999-11-25  Gary Thomas  <gthomas@cygnus.co.uk>

        * include/pkgconf/mlt_sparclite_sim_ram.h: New file.

1999-10-13  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/pkgconf/hal_sparclite_sim.h: Add define of
        CYGHWR_HAL_SPARCLITE_HAS_ASR17 for arch HAL to DTRT with SVT
        (anticipating cores with no SVT at all, so no %asr17)

1999-04-08  John Dallaway  <jld@cygnus.co.uk>

        * include/pkgconf/*.ldi: Revised SECTION_* macro arguments to
        avoid padded output sections (PR 19787)

1999-04-07  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/hal_priv.c: Remove bogus FIX ME; it wasn't true.

1999-03-16  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/halboot.si: Add a dummy LED macro for debug in the
        vectors.S; correct a scary line length.

1999-03-04  Gary Thomas  <gthomas@cygnus.co.uk>

        * include/pkgconf/hal_sparclite_sim.h: Take out DEVICES dependencies.

1999-03-04  John Dallaway  <jld@cygnus.co.uk>

        * include/pkgconf/*.ldi: give all LDI files unique names so
        that they can co-exist in an eCos build tree (PR 19184)
        * include/pkgconf/*.mlt: give all MLT files unique names so
        that they can co-exist in an eCos build tree (PR 19184)

1999-02-25  Hugo Tyson  <hmt@cygnus.co.uk>

        These log entries from 1999-02-22 to 1999-02-24 were executed in
        a branch; this change is a merge of that branch into the trunk.

        (1999-02-23  John Dallaway  <jld@cygnus.co.uk>)

        * include/pkgconf/hal_sparclite_sim.h: New rules
        CYGPKG_HAL_SPARCLITE_SIM precludes CYGPKG_DEVICES_GDB
        CYGPKG_HAL_SPARCLITE_SIM precludes CYGPKG_DEVICES_SERIAL_RS232_COMMON

        (1999-02-22  Hugo Tyson  <hmt@cygnus.co.uk>)

        * src/hal_priv.c (hal_board_prestart, hal_board_poststart): 
        Shut down the erc32 watchdog in and enable interrupts in these two
        new routines.

        * include/halboot.si: 
        Remove N/A code that I was just storing here, and install the real
        vector instructions in this fragment; there be cache-wangling to
        do in hardware cases either side of the vector installation.

1999-02-20  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/hal_xpic.h: 
        Rename CYG_VECTOR_* -> CYGNUM_HAL_INTERRUPT_*

        * src/hal_priv.c:
        Add a FIX ME

1999-02-08  John Dallaway  <jld@cygnus.co.uk>

        * src/sim.ld: Remove platform-specific linker script for
        MLT compliance.

        * src/PKGconf.mak: Remove build rules for sim.ld.

        * include/pkgconf/ram.*: Add MLT save file and and linker
        script fragment for RAM startup.

1999-02-01  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/halboot.si: 
        New file: performs platform-oriented setup of RAM and cache
        controllers, and quietens any interrupt sources.

        * include/pkgconf/hal_sparclite_sim.h: 
        Correct comments/CDL description of sim invocation.

1999-01-28  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/hal_cache.h: NEW FILE to this directory; moved here from
        the sparclite/arch tree; cache control is very much board-specific

        * include/hal_clock.h: NEW FILE to this directory; it was a part
        of hal_intr.h, but is now here because the clock is target determined.

        * include/hal_xpic.h: NEW FILE to this directory; it was a part of
        hal_intr.h, but is now here because the detail of interrupot
        control is target determined.

        * src/hal_priv.c: NEW FILE to this directory; it was a part
        of hal_intr.h, but is now here because the clock is target
        determined, and it's the clock that needs a local variable.

        * src/PKGconf.mak (COMPILE): compile it.
        

1999-01-26  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/sim.ld: 
        Add copyright notice.  (Though these files will later be generated
        by a tool and so not copyright, these default setups are.)

1999-01-22  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/sim.ld: 
        Remove some bogus comments.

1999-01-21  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * src/sim.ld: 
        Remove all traces of non-CYG_KERNEL_USE_INIT_PRIORITY code

1999-01-21  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/sim.ld: 
        Align bss and rom/ram_data starts and ends by 8 bytes to permit
        fast copy routines.

1999-01-19  Hugo Tyson  <hmt@cygnus.co.uk>

        Modified files in arch:
        * include/hal_arch.h
        * include/hal_intr.h
        * src/PKGconf.mak
        * src/context.S
        * src/hal_intr.c
        * src/vec_ivsr.S
        * src/vec_xvsr.S
        * src/vectors.S

        New files in arch:
        * src/hal_boot.c        (bss initialization, constructors &c)
        * include/hal_cache.h   (empty but required header)

        Modified files in sim:
        * include/hal_diag.h

        Lots more progress; essentially, everything now works.

        Simulator's treatment of stdio is poor though, it doesn't work
        under pkgtest.  This has been slowing me up.

1999-01-14  Hugo Tyson  <hmt@cygnus.co.uk>

        * ecc/ecc/hal/sparclite/...:

        Initial checkin of SPARClite HAL; it doesn't work yet, except the
        most trivial of tests - timer and interrupt manipulation stuff is
        entirely absent.

        Here's some documentation of the initial checkin tree; this will
        change, as platform dependent stuff moves correctly into the sim
        or <board> directories.

        arch/current/include:
                basetype.h      nothing much here.
                vectors.h       definitions of symbols shared between the
                        various vector code assembler files, can be
                        included in both C and assembler.
                hal_intr.h      various macros for clock and interrupt
                        control plus the eCos vector numbering scheme; we
                        map thus:
                        what    SPARC trap type     eCos vector numbers
                        -----------------------------------------------
                        (not used)   ---                0       
                        interrupts (17-31)              1-15
                        user traps (128-255)            16
                        exceptions (1-9,36==4)          17-25
                        others     (10,?)               26
                        -----------------------------------------------
                        Trap types 5 and 6 which would be eCos vectors 21
                        and 22 are handled in the trampoline code in
                        file src/vectors.S
                hal_arch.h      definition of a thread context, plus
                        macros for thread switching and the like.  Some
                        ancillary bit twiddling macros and cache barriers
                        too.

        arch/current/include/pkgconf:
                hal_sparclite.h         pkgconf config/header file.
        
        arch/current/src:
                vectors.S       boot-up stuff, trampoline code that hangs
                        on the interrupt/trap vector, handlers for window
                        under/overflow.  Saves some state in registers
                        then jumps to the interrupt or exception VSR
                        respectively.
                        Also instantiates the VSR table.
                vec_ivsr.S      the default interrupt VSR; it establishes
                        a C calling environment (ie. anticipates a window
                        overflow) then locks the scheduler, calls the ISR
                        with appropriate arguments, and then interrupt_end()
                        before undoing that environment, anticipating
                        window underflow and returning to the interrupted
                        instruction.
                vec_xvsr.S      the default exception AKA trap VSR; does
                        the same as the interrupt one but without the
                        scheduler lock or interrupt end.
                hal_intr.c      instantiates the ISR table used by the
                        code above.
                context.S       context switch code, saves and loads up a
                        whole register state, coroutine or longjump-like.
                icontext.c      initializes a context to "jump" to in
                        context.S at the birth of a new thread.

        sim/current/include:
                hal_diag.h      macros to deal with debugging output via a
                        fake serial device of some kind; initially empty,
                        but definitely board/sim dependent.

        sim/current/include/pkgconf:
                hal_sparclite_sim.h     pkgconf config/header file.

        sim/current/src:
                sim.ld          linker script bits for "sim" target.

//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//===========================================================================

//EOF ChangeLog