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2005-10-05 Jiri Gaisler <jiri@gaisler.com>

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Edvin Catovic <edvin@gaisler.com>
            Konrad Eisele <konrad@gaisler.com>

	PR 827/bsps
	* Makefile.am, bspstart.c, gnatcommon.c, start.S: Portion of large
	update of SPARC BSPs. Includes addition of sis, leon2 and leon3 BSPs,
	deletion of leon BSP, addition of SMC91111 NIC driver and much more.
This commit is contained in:
Joel Sherrill
2005-10-05 19:24:48 +00:00
parent e75e10dcac
commit d490fff3c1
5 changed files with 70 additions and 7 deletions
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9
c/src/lib/libbsp/sparc/shared/ChangeLog
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@@ -1,3 +1,12 @@
2005-10-05 Jiri Gaisler <jiri@gaisler.com>
Edvin Catovic <edvin@gaisler.com>
Konrad Eisele <konrad@gaisler.com>
PR 827/bsps
* Makefile.am, bspstart.c, gnatcommon.c, start.S: Portion of large
update of SPARC BSPs. Includes addition of sis, leon2 and leon3 BSPs,
deletion of leon BSP, addition of SMC91111 NIC driver and much more.
2003-09-04 Joel Sherrill <joel@OARcorp.com>
* bspclean.c, bspstart.c: URL for license changed.

2
c/src/lib/libbsp/sparc/shared/Makefile.am
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@@ -3,6 +3,6 @@
##
EXTRA_DIST = bspclean.c bspstart.c gnatcommon.c start.S
EXTRA_DIST = bspclean.c gnatcommon.c start.S
include $(top_srcdir)/../../../../../automake/local.am

4
c/src/lib/libbsp/sparc/shared/bspstart.c
View File

@@ -198,8 +198,8 @@ void bsp_start( void )
Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
work_space_start =
(unsigned char *)rdb_start - BSP_Configuration.work_space_size;
work_space_start = (unsigned char *)rdb_start;
work_space_start -= BSP_Configuration.work_space_size;
if ( work_space_start <= (unsigned char *)&end ) {
DEBUG_puts( "bspstart: Not enough RAM!!!\n" );

1
c/src/lib/libbsp/sparc/shared/gnatcommon.c
View File

@@ -3,6 +3,7 @@
* Support for gnat/rtems interrupts and exception handling.
* Jiri Gaisler, ESA/ESTEC, 17-02-1999.
*
* $Id$
*/
#include <bsp.h>

61
c/src/lib/libbsp/sparc/shared/start.S
View File

@@ -11,6 +11,7 @@
*/
#include <asm.h>
#include <bspopts.h>
/*
* Unexpected trap will halt the processor by forcing it to error state
@@ -216,10 +217,6 @@ SYM(hard_reset):
nop
nop
call __bsp_board_init
nop
set (SYM(rdb_start)), %g6 ! End of work-space area
st %sp, [%g6]
set (SYM(Configuration)), %l1
@@ -230,6 +227,62 @@ SYM(hard_reset):
mov %sp, %fp ! Set frame pointer
nop
#if ENABLE_SIS_QUIRKS==1
#include <erc32.h>
/* Check if MEC is initialised. If not, this means that we are
running on the simulator. Initiate some of the parameters
that are done by the boot-prom otherwise.
*/
set SYM(ERC32_MEC), %g3 ! g3 = base address of peripherals
ld [%g3], %g2
set 0xfe080000, %g1
andcc %g1, %g2, %g0
bne 2f
/* Set the correct memory size in MEC memory config register */
set SYM(PROM_SIZE), %l0
set 0, %l1
srl %l0, 18, %l0
1:
tst %l0
srl %l0, 1, %l0
bne,a 1b
inc %l1
sll %l1, 8, %l1
set SYM(RAM_SIZE), %l0
srl %l0, 19, %l0
1:
tst %l0
srl %l0, 1, %l0
bne,a 1b
inc %l1
sll %l1, 10, %l1
! set the Memory Configuration
st %l1, [ %g3 + ERC32_MEC_MEMORY_CONFIGURATION_OFFSET ]
!DISABLE THE HARDWARE WATCHDOG
st %g0, [ %g3 + ERC32_MEC_WATCHDOG_TRAP_DOOR_SET_OFFSET ]
!Reduce the number of wait states to 0 for all memory areas.
st %g0, [ %g3 + ERC32_MEC_WAIT_STATE_CONFIGURATION_OFFSET ]
set SYM(RAM_START), %l1 ! Cannot use RAM_END due to bug in linker
set SYM(RAM_SIZE), %l2
add %l1, %l2, %sp
st %sp, [%g6]
set SYM(CLOCK_SPEED), %g6 ! Use 14 MHz in simulator
set 14, %g1
st %g1, [%g6]
2:
#endif
/*
* Copy the initialized data to RAM
*