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  • This comparison shows the changes necessary to convert path 
    /openrisc/trunk/rtos/ecos-2.0/packages/hal/mips/jmr3904/v2_0/src
    from Rev 27 to Rev 174
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  •

Rev 27 → Rev 174

/plf_stub.c
0,0 → 1,161
//=============================================================================
//
// plf_stub.c
//
// Platform specific code for GDB stub support.
//
//=============================================================================
//####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####
//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): nickg, jskov (based on the old tx39 hal_stub.c)
// Contributors:nickg, jskov
// Date: 1999-02-12
// Purpose: Platform specific code for GDB stub support.
//
//####DESCRIPTIONEND####
//
//=============================================================================
 
#include <pkgconf/hal.h>
 
#ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
 
#include <cyg/hal/hal_stub.h>
 
#include <cyg/hal/hal_io.h> // HAL IO macros
#include <cyg/hal/hal_diag.h> // diag output. FIXME
 
//-----------------------------------------------------------------------------
// Serial definitions.
#define DIAG_BASE 0xfffff300
#define DIAG_SLCR (DIAG_BASE+0x00)
#define DIAG_SLSR (DIAG_BASE+0x04)
#define DIAG_SLDICR (DIAG_BASE+0x08)
#define DIAG_SLDISR (DIAG_BASE+0x0C)
#define DIAG_SFCR (DIAG_BASE+0x10)
#define DIAG_SBRG (DIAG_BASE+0x14)
#define DIAG_TFIFO (DIAG_BASE+0x20)
#define DIAG_RFIFO (DIAG_BASE+0x30)
 
#define BRG_T0 0x0000
#define BRG_T2 0x0100
#define BRG_T4 0x0200
#define BRG_T5 0x0300
 
//-----------------------------------------------------------------------------
 
// Initialize the current serial port.
void hal_jmr_init_serial( void )
{
//hal_diag_led(0x10);
HAL_WRITE_UINT16( DIAG_SLCR , 0x0020 );
 
HAL_WRITE_UINT16( DIAG_SLDICR , 0x0000 );
HAL_WRITE_UINT16( DIAG_SFCR , 0x0000 );
// HAL_WRITE_UINT16( DIAG_SBRG , BRG_T2 | 20 );
// HAL_WRITE_UINT16( DIAG_SBRG , BRG_T2 | 10 );
HAL_WRITE_UINT16( DIAG_SBRG , BRG_T2 | 5 );
 
//hal_diag_led(0x10);
}
 
// Write C to the current serial port.
void hal_jmr_put_char( int c )
{
CYG_WORD16 disr;
//hal_diag_led(0x20);
 
for(;;)
{
HAL_READ_UINT16( DIAG_SLDISR , disr );
 
if( disr & 0x0002 ) break;
}
 
disr = disr & ~0x0002;
HAL_WRITE_UINT8( DIAG_TFIFO, c );
 
HAL_WRITE_UINT16( DIAG_SLDISR , disr );
 
//hal_diag_led(0x20);
// HAL_DIAG_WRITE_CHAR( c );
}
 
// Read one character from the current serial port.
int hal_jmr_get_char( void )
{
#ifdef CYGPKG_HAL_MIPS_SIM
// FIXME: ask nickg if this can go to /dev/null
static char input[] = "+$s#73";
static int i = 0;
return input[i++];
#else
char c;
 
CYG_WORD16 disr;
 
//hal_diag_led(0x40);
for(;;)
{
HAL_READ_UINT16( DIAG_SLDISR , disr );
 
if( disr & 0x0001 ) break;
}
 
disr = disr & ~0x0001;
HAL_READ_UINT8( DIAG_RFIFO, c );
HAL_WRITE_UINT16( DIAG_SLDISR , disr );
 
//hal_diag_led(0x40);
// HAL_DIAG_READ_CHAR(c);
// diag_printf("<%02x:%c>",c);
 
return c;
#endif
}
 
#endif // ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
//-----------------------------------------------------------------------------
// End of plf_stub.c
/platform.S
0,0 → 1,71
##=============================================================================
##
## platform.S
##
## MIPS JMR-TX3904 platform code
##
##=============================================================================
#####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####
##=============================================================================
#######DESCRIPTIONBEGIN####
##
## Author(s): nickg
## Contributors: nickg
## Date: 1999-04-20
## Purpose: MIPS JMR-TX3904 platform code
## Description: Platform specific code for JMR-TX3904 board.
##
##
##
##
######DESCRIPTIONEND####
##
##=============================================================================
 
#include <pkgconf/system.h>
#include <pkgconf/hal.h>
 
#ifdef CYGPKG_KERNEL
# include <pkgconf/kernel.h>
#endif
#include <cyg/hal/arch.inc>
 
##-----------------------------------------------------------------------------
 
## nothing here at present.
##-----------------------------------------------------------------------------
## end of platform.S
/plf_misc.c
0,0 → 1,208
//==========================================================================
//
// plf_misc.c
//
// HAL platform miscellaneous functions
//
//==========================================================================
//####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####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): nickg
// Contributors: nickg, jlarmour
// Date: 1999-01-21
// Purpose: HAL miscellaneous functions
// Description: This file contains miscellaneous functions provided by the
// HAL.
//
//####DESCRIPTIONEND####
//
//========================================================================*/
 
#include <pkgconf/hal.h>
 
#include <cyg/infra/cyg_type.h> // Base types
#include <cyg/infra/cyg_trac.h> // tracing macros
#include <cyg/infra/cyg_ass.h> // assertion macros
 
#include <cyg/hal/hal_arch.h> // architectural definitions
 
#include <cyg/hal/hal_intr.h> // Interrupt handling
 
#include <cyg/hal/hal_cache.h> // Cache handling
 
/*------------------------------------------------------------------------*/
 
extern void patch_dbg_syscalls(void * vector);
 
/*------------------------------------------------------------------------*/
 
void hal_platform_init(void)
{
 
HAL_ICACHE_INVALIDATE_ALL();
HAL_ICACHE_ENABLE();
HAL_DCACHE_INVALIDATE_ALL();
HAL_DCACHE_ENABLE();
 
#if !defined(CYGHWR_HAL_MIPS_TX39_JMR3904_ENABLE_TOE)
HAL_TX39_DEBUG_TOE_DISABLE();
 
#else
 
HAL_TX39_DEBUG_TOE_ENABLE();
 
#endif
 
#if defined(CYGFUN_HAL_COMMON_KERNEL_SUPPORT) && \
defined(CYGSEM_HAL_USE_ROM_MONITOR_CygMon)
{
patch_dbg_syscalls( (void *)(&hal_vsr_table[0]) );
}
#endif
}
 
/*------------------------------------------------------------------------*/
/* Functions to support the detection and execution of a user provoked */
/* program break. These are usually called from interrupt routines. */
 
cyg_bool cyg_hal_is_break(char *buf, int size)
{
while( size )
if( buf[--size] == 0x03 ) return true;
 
return false;
}
 
void cyg_hal_user_break( CYG_ADDRWORD *regs )
{
#if defined(CYGSEM_HAL_USE_ROM_MONITOR_CygMon)
// The following code should be at the very start of this function so
// that it can access the RA register before it is saved and reused.
register CYG_WORD32 ra;
asm volatile ( "move %0,$31;" : "=r" (ra) );
 
{
typedef void install_bpt_fn(void *epc);
CYG_WORD32 pc;
HAL_SavedRegisters *sreg = (HAL_SavedRegisters *)regs;
install_bpt_fn *ibp = (install_bpt_fn *)hal_vsr_table[35];
 
if( regs == NULL ) pc = ra;
else pc = sreg->pc;
 
if( ibp != NULL ) ibp((void *)pc);
}
#elif defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS)
 
{
extern void breakpoint(void);
breakpoint();
}
#else
 
HAL_BREAKPOINT(breakinst);
 
#endif
 
}
 
/*------------------------------------------------------------------------*/
/* Control C ISR support */
 
#if defined(CYGDBG_HAL_MIPS_DEBUG_GDB_CTRLC_SUPPORT)
 
#define DIAG_BASE 0xfffff300
#define DIAG_SLCR (DIAG_BASE+0x00)
#define DIAG_SLSR (DIAG_BASE+0x04)
#define DIAG_SLDICR (DIAG_BASE+0x08)
#define DIAG_SLDISR (DIAG_BASE+0x0C)
#define DIAG_SFCR (DIAG_BASE+0x10)
#define DIAG_SBRG (DIAG_BASE+0x14)
#define DIAG_TFIFO (DIAG_BASE+0x20)
#define DIAG_RFIFO (DIAG_BASE+0x30)
 
#define BRG_T0 0x0000
#define BRG_T2 0x0100
#define BRG_T4 0x0200
#define BRG_T5 0x0300
 
struct Hal_SavedRegisters *hal_saved_interrupt_state;
 
void hal_ctrlc_isr_init(void)
{
CYG_WORD16 dicr;
HAL_READ_UINT16( DIAG_SLDICR , dicr );
dicr = 0x0001;
HAL_WRITE_UINT16( DIAG_SLDICR , dicr );
 
HAL_INTERRUPT_SET_LEVEL( CYGHWR_HAL_GDB_PORT_VECTOR, 1 );
HAL_INTERRUPT_UNMASK( CYGHWR_HAL_GDB_PORT_VECTOR );
}
 
cyg_uint32 hal_ctrlc_isr(CYG_ADDRWORD vector, CYG_ADDRWORD data)
{
char c;
CYG_WORD16 disr;
 
HAL_INTERRUPT_ACKNOWLEDGE( CYGHWR_HAL_GDB_PORT_VECTOR );
HAL_READ_UINT16( DIAG_SLDISR , disr );
 
if( disr & 0x0001 )
{
 
disr = disr & ~0x0001;
HAL_READ_UINT8( DIAG_RFIFO, c );
HAL_WRITE_UINT16( DIAG_SLDISR , disr );
if( cyg_hal_is_break( &c , 1 ) )
cyg_hal_user_break( (CYG_ADDRWORD *)hal_saved_interrupt_state );
}
 
return 2;
}
 
#endif
 
/*------------------------------------------------------------------------*/
/* End of plf_misc.c */

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