forked from Imagelibrary/rtems
2008-09-14 Joel Sherrill <joel.sherrill@oarcorp.com>
* Makefile.am, configure.ac, startup/bspstart.c, startup/linkcmds: Split out bsp_get_work_area() into its own file and user BSP Framework to perform more initialization. * startup/bspgetworkarea.c: New file.
This commit is contained in:
Joel Sherrill
@@ -1,3 +1,10 @@
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2008-09-14 Joel Sherrill <joel.sherrill@oarcorp.com>
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* Makefile.am, configure.ac, startup/bspstart.c, startup/linkcmds:
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Split out bsp_get_work_area() into its own file and user BSP
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Framework to perform more initialization.
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* startup/bspgetworkarea.c: New file.
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2008-09-10 Joel Sherrill <joel.sherrill@oarcorp.com>
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* include/bsp.h: Review of all bsp_cleanup() implementations. In this
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@@ -26,11 +26,11 @@ project_lib_DATA = start.$(OBJEXT)
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dist_project_lib_DATA += startup/linkcmds
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startup_SOURCES = ../../shared/bspclean.c \
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startup_SOURCES = ../../shared/bspclean.c ../../shared/bsppretaskinghook.c \
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../../shared/bsppredriverhook.c ../../shared/bsplibc.c \
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../../shared/bsppost.c startup/bspstart.c ../../shared/bootcard.c \
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../../shared/sbrk.c ../../shared/gnatinstallhandler.c \
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../../shared/setvec.c
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../../shared/setvec.c startup/bspgetworkarea.c
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clock_SOURCES = clock/clockdrv.c
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console_SOURCES = console/conscfg.c ../../shared/console.c
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timer_SOURCES = timer/timer.c
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@@ -16,6 +16,8 @@ RTEMS_PROG_CC_FOR_TARGET([-ansi -fasm])
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RTEMS_CANONICALIZE_TOOLS
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RTEMS_PROG_CCAS
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RTEMS_BSP_BOOTCARD_HANDLES_RAM_ALLOCATION
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# Explicitly list all Makefiles here
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AC_CONFIG_FILES([Makefile])
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AC_OUTPUT
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43
c/src/lib/libbsp/mips/genmongoosev/startup/bspgetworkarea.c
Normal file
43
c/src/lib/libbsp/mips/genmongoosev/startup/bspgetworkarea.c
Normal file
@@ -0,0 +1,43 @@
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/*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#include <bsp.h>
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#include <bsp/bootcard.h>
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#include <stdint.h>
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extern void *WorkspaceBase;
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extern void *_RamBase;
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extern void *_RamSize;
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/*
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* This method returns the base address and size of the area which
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* is to be allocated between the RTEMS Workspace and the C Program
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* Heap.
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*/
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void bsp_get_work_area(
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void **work_area_start,
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size_t *work_area_size,
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void **heap_start,
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size_t *heap_size
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)
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{
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uintptr_t size;
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/*
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* Old code had hard-coded heap size of 0x20000 and a comment indicating
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* something about the undefined symbol MEM_NOCACHE_SIZE.
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*/
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size = (uintptr_t)&_RamBase + (uintptr_t)&_RamSize
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- (uintptr_t)&WorkspaceBase;
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*work_area_start = (void *)&WorkspaceBase;
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*work_area_size = size;
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*heap_start = BSP_BOOTCARD_HEAP_USES_WORK_AREA;
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*heap_size = BSP_BOOTCARD_HEAP_SIZE_DEFAULT;
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}
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@@ -25,99 +25,66 @@
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#include <rtems/libcsupport.h>
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#include <libcpu/mongoose-v.h>
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/*
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* Use the shared implementations of the following routines
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*/
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void bsp_libc_init( void *, uint32_t, int );
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/*
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* Function: bsp_pretasking_hook
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* Created: 95/03/10
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*
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* Description:
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* BSP pretasking hook. Called just before drivers are initialized.
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* Used to setup libc and install any BSP extensions.
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*
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* NOTES:
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* Must not use libc (to do io) from here, since drivers are
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* not yet initialized.
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*
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*/
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void bsp_pretasking_hook(void)
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{
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extern int HeapBase;
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extern int HeapSize;
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void *heapStart = &HeapBase;
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unsigned long heapSize = (unsigned long)&HeapSize;
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bsp_libc_init(heapStart, (uint32_t) heapSize, 0);
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}
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extern void _sys_exit(int);
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extern void mips_install_isr_entries(void);
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extern void mips_gdb_stub_install(void);
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/*
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* bsp_start
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*
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* This routine does the bulk of the system initialization.
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*/
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void bsp_start( void )
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{
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extern void _sys_exit(int);
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extern int WorkspaceBase;
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extern void mips_install_isr_entries(void);
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extern void mips_gdb_stub_install(void);
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/* mask off any interrupts */
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MONGOOSEV_WRITE( MONGOOSEV_PERIPHERAL_FUNCTION_INTERRUPT_MASK_REGISTER, 0 );
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/* HACK -- tied to value linkcmds */
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if ( rtems_configuration_get_work_space_size() > (4096*1024) )
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_sys_exit( 1 );
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/* reset the config register & clear any pending peripheral interrupts */
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MONGOOSEV_WRITE( MONGOOSEV_PERIPHERAL_COMMAND_REGISTER, 0 );
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MONGOOSEV_WRITE(
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MONGOOSEV_PERIPHERAL_COMMAND_REGISTER, MONGOOSEV_UART_CMD_RESET_BOTH_PORTS );
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MONGOOSEV_WRITE( MONGOOSEV_PERIPHERAL_COMMAND_REGISTER, 0 );
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Configuration.work_space_start = (void *) &WorkspaceBase;
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/* reset both timers */
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MONGOOSEV_WRITE_REGISTER(
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MONGOOSEV_TIMER1_BASE, MONGOOSEV_TIMER_INITIAL_COUNTER_REGISTER, 0xffffffff);
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MONGOOSEV_WRITE_REGISTER(
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MONGOOSEV_TIMER1_BASE, MONGOOSEV_TIMER_CONTROL_REGISTER, 0);
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/* mask off any interrupts */
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MONGOOSEV_WRITE( MONGOOSEV_PERIPHERAL_FUNCTION_INTERRUPT_MASK_REGISTER, 0 );
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MONGOOSEV_WRITE_REGISTER(
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MONGOOSEV_TIMER2_BASE, MONGOOSEV_TIMER_INITIAL_COUNTER_REGISTER, 0xffffffff);
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MONGOOSEV_WRITE_REGISTER(
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MONGOOSEV_TIMER2_BASE, MONGOOSEV_TIMER_CONTROL_REGISTER, 0);
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/* reset the config register & clear any pending peripheral interrupts */
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MONGOOSEV_WRITE( MONGOOSEV_PERIPHERAL_COMMAND_REGISTER, 0 );
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MONGOOSEV_WRITE( MONGOOSEV_PERIPHERAL_COMMAND_REGISTER, MONGOOSEV_UART_CMD_RESET_BOTH_PORTS );
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MONGOOSEV_WRITE( MONGOOSEV_PERIPHERAL_COMMAND_REGISTER, 0 );
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/* clear any pending interrupts */
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MONGOOSEV_WRITE( MONGOOSEV_PERIPHERAL_STATUS_REGISTER, 0xffffffff );
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/* reset both timers */
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MONGOOSEV_WRITE_REGISTER( MONGOOSEV_TIMER1_BASE, MONGOOSEV_TIMER_INITIAL_COUNTER_REGISTER, 0xffffffff );
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MONGOOSEV_WRITE_REGISTER( MONGOOSEV_TIMER1_BASE, MONGOOSEV_TIMER_CONTROL_REGISTER, 0);
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/* clear any writable bits in the cause register */
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mips_set_cause( 0 );
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MONGOOSEV_WRITE_REGISTER( MONGOOSEV_TIMER2_BASE, MONGOOSEV_TIMER_INITIAL_COUNTER_REGISTER, 0xffffffff );
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MONGOOSEV_WRITE_REGISTER( MONGOOSEV_TIMER2_BASE, MONGOOSEV_TIMER_CONTROL_REGISTER, 0);
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/* set interrupt mask, but globally off. */
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/* clear any pending interrupts */
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MONGOOSEV_WRITE( MONGOOSEV_PERIPHERAL_STATUS_REGISTER, 0xffffffff );
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/*
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* Bit 15 | Bit 14 | Bit 13 | Bit 12 | Bit 11 | Bit 10 | Bit 9 | Bit 8 |
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* periph | unused | FPU | unused | timer2 | timer1 | swint1 | swint2 |
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* extern | | | | | | | |
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*
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* 1 0 1 0 0 1 0 0
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*
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* 0x8C00 Enable only internal Mongoose V timers.
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* 0xA400 Enable Peripherial ints, FPU and timer1
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* 0x0400 Timer1 only
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*/
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/* clear any writable bits in the cause register */
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mips_set_cause( 0 );
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/* mips_set_sr( (SR_CU0 | SR_CU1 | 0xA400) ); */
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/* set interrupt mask, but globally off. */
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/*
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** Bit 15 | Bit 14 | Bit 13 | Bit 12 | Bit 11 | Bit 10 | Bit 9 | Bit 8 |
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** periph | unused | FPU | unused | timer2 | timer1 | swint1 | swint2 |
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** extern | | | | | | | |
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**
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** 1 0 1 0 0 1 0 0
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**
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** 0x8C00 Enable only internal Mongoose V timers.
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** 0xA400 Enable Peripherial ints, FPU and timer1
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** 0x0400 Timer1 only
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/* to start up, only enable coprocessor 0 & timer int. per-task
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* processor settings will be applied as they are created, this
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* is just to configure the processor for startup
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*/
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mips_set_sr( (SR_CU0 | 0x400) );
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/* mips_set_sr( (SR_CU0 | SR_CU1 | 0xA400) ); */
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/* to start up, only enable coprocessor 0 & timer int. per-task
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** processor settings will be applied as they are created, this
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** is just to configure the processor for startup
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*/
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mips_set_sr( (SR_CU0 | 0x400) );
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mips_install_isr_entries();
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mips_install_isr_entries();
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}
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void clear_cache( void )
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@@ -128,25 +95,3 @@ void clear_cache( void )
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promCopyIcacheFlush();
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promCopyDcacheFlush();
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}
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#if 0
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/* Structure filled in by get_mem_info. */
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struct s_mem
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{
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unsigned int size;
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unsigned int icsize;
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unsigned int dcsize;
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};
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extern uint32_t _RamSize;
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void get_mem_info ( struct s_mem *mem )
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{
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mem->size = (uint32_t)&_RamSize;
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mem->icsize = MONGOOSEV_IC_SIZE;
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mem->dcsize = MONGOOSEV_DC_SIZE;
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}
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#endif
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@@ -13,7 +13,6 @@
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_RamBase = DEFINED(_RamBase) ? _RamBase : 0x80000000;
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_RamSize = DEFINED(_RamSize) ? _RamSize : 32M;
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HeapSize = DEFINED(HeapSize) ? HeapSize : 0x40000;
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_StackSize = DEFINED(_StackSize) ? _StackSize : 0x4000;
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ClockRate = DEFINED(ClockRate) ? ClockRate : 12000000;
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@@ -170,8 +169,6 @@ SECTIONS
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__stack = .;
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_stack_init = .;
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_clear_end = .;
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HeapBase = .;
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. += HeapSize; /* reserve some memory for heap */
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WorkspaceBase = .;
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end = .;
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_end = .;
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