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-rw-r--r--c/src/lib/libbsp/powerpc/mbx8xx/startup/bspstart.c193
-rw-r--r--c/src/lib/libbsp/powerpc/mbx8xx/startup/bspstart.c.nocache202
2 files changed, 395 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/mbx8xx/startup/bspstart.c b/c/src/lib/libbsp/powerpc/mbx8xx/startup/bspstart.c
new file mode 100644
index 0000000000..2180df9b44
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/mbx8xx/startup/bspstart.c
@@ -0,0 +1,193 @@
+/* bspstart.c
+ *
+ * This set of routines starts the application. It includes application,
+ * board, and monitor specific initialization and configuration.
+ * The generic CPU dependent initialization has been performed
+ * before this routine is invoked.
+ *
+ * COPYRIGHT (c) 1989-1998.
+ * On-Line Applications Research Corporation (OAR).
+ * Copyright assigned to U.S. Government, 1994.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.OARcorp.com/rtems/license.html.
+ *
+ * Modifications for MBX860:
+ * Copyright (c) 1999, National Research Council of Canada
+ *
+ * $Id$
+ */
+
+#include <bsp.h>
+#include <rtems/libio.h>
+
+#include <libcsupport.h>
+
+#include <string.h>
+
+#ifdef STACK_CHECKER_ON
+#include <stackchk.h>
+#endif
+
+/*
+ * The original table from the application (in ROM) and our copy of it with
+ * some changes. Configuration is defined in <confdefs.h>. Make sure that
+ * our configuration tables are uninitialized so that they get allocated in
+ * the .bss section (RAM).
+ */
+extern rtems_configuration_table Configuration;
+rtems_configuration_table BSP_Configuration;
+
+rtems_cpu_table Cpu_table;
+
+char *rtems_progname;
+
+/*
+ * Use the shared implementations of the following routines.
+ * Look in rtems/c/src/lib/libbsp/shared/bsppost.c and
+ * rtems/c/src/lib/libbsp/shared/bsplibc.c.
+ */
+void bsp_postdriver_hook(void);
+void bsp_libc_init( void *, unsigned32, int );
+
+/*
+ * bsp_pretasking_hook
+ *
+ * Called when RTEMS initialization is complete but before interrupts and
+ * tasking are enabled. Used to setup libc and install any BSP extensions.
+ *
+ * Must not use libc (to do io) from here, since drivers are not yet
+ * initialized.
+ *
+ * Installed in the rtems_cpu_table defined in
+ * rtems/c/src/exec/score/cpu/m68k/cpu.h in main() below. Called from
+ * rtems_initialize_executive() defined in rtems/c/src/exec/sapi/src/init.c
+ *
+ * Input parameters: NONE
+ *
+ * Output parameters: NONE
+ *
+ * Return values: NONE
+ */
+void bsp_pretasking_hook(void)
+{
+ /*
+ * These are assigned addresses in the linkcmds file for the BSP. This
+ * approach is better than having these defined as manifest constants and
+ * compiled into the kernel, but it is still not ideal when dealing with
+ * multiprocessor configuration in which each board as a different memory
+ * map. A better place for defining these symbols might be the makefiles.
+ * Consideration should also be given to developing an approach in which
+ * the kernel and the application can be linked and burned into ROM
+ * independently of each other.
+ */
+ extern unsigned char _HeapStart;
+ extern unsigned char _HeapEnd;
+
+ bsp_libc_init( &_HeapStart, &_HeapEnd - &_HeapStart, 0 );
+
+#ifdef STACK_CHECKER_ON
+ /*
+ * Initialize the stack bounds checker
+ * We can either turn it on here or from the app.
+ */
+
+ Stack_check_Initialize();
+#endif /* STACK_CHECKER_ON */
+
+#ifdef RTEMS_DEBUG
+ rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
+#endif
+}
+
+
+/*
+ * bsp_start()
+ *
+ * Board-specific initialization code. Called from the generic boot_card()
+ * function defined in rtems/c/src/lib/libbsp/shared/main.c. That function
+ * does some of the board independent initialization. It is called from the
+ * MBX8xx entry point _start() defined in
+ * rtems/c/src/lib/libbsp/powerpc/mbx8xx/startup/start.S
+ *
+ * _start() has set up a stack, has zeroed the .bss section, has turned off
+ * interrupts, and placed the processor in the supervisor mode. boot_card()
+ * has left the processor in that state when bsp_start() was called.
+ *
+ * RUNS WITH ADDRESS TRANSLATION AND CACHING TURNED OFF!
+ * ASSUMES THAT THE VIRTUAL ADDRESSES WILL BE IDENTICAL TO THE PHYSICAL
+ * ADDRESSES. Software-controlled address translation would be required
+ * otherwise.
+ *
+ * Input parameters: NONE
+ *
+ * Output parameters: NONE
+ *
+ * Return values: NONE
+ */
+void bsp_start(void)
+{
+ extern void *_WorkspaceBase;
+
+ mmu_init();
+
+ /*
+ * Enable instruction and data caches. Do not force writethrough mode.
+ */
+ #ifdef INSTRUCTION_CACHE_ENABLE
+ rtems_enable_inst_cache();
+ #endif
+
+ #ifdef DATA_CACHE_ENABLE
+ rtems_enable_data_cache();
+ #endif
+
+ /*
+ * Allocate the memory for the RTEMS Work Space. This can come from
+ * a variety of places: hard coded address, malloc'ed from outside
+ * RTEMS world (e.g. simulator or primitive memory manager), or (as
+ * typically done by stock BSPs) by subtracting the required amount
+ * of work space from the last physical address on the CPU board.
+ *
+ * In this case, the memory is not malloc'ed. It is just
+ * "pulled from the air".
+ */
+ BSP_Configuration.work_space_start = (void *)&_WorkspaceBase;
+
+ /*
+ * initialize the CPU table for this BSP
+ */
+
+ Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */
+ Cpu_table.postdriver_hook = bsp_postdriver_hook;
+ if( Cpu_table.interrupt_stack_size < 4 * 1024 )
+ Cpu_table.interrupt_stack_size = 4 * 1024;
+
+ Cpu_table.clicks_per_usec = 1; /* for 4MHz extclk */
+ Cpu_table.serial_per_sec = 10000000;
+ Cpu_table.serial_external_clock = 1;
+ Cpu_table.serial_xon_xoff = 0;
+ Cpu_table.serial_cts_rts = 1;
+ Cpu_table.serial_rate = 9600;
+#if ( defined(mbx821_001) || defined(mbx821_001b) || defined(mbx860_001b) )
+ Cpu_table.clock_speed = 50000000;
+ Cpu_table.timer_average_overhead = 3;
+ Cpu_table.timer_least_valid = 3;
+#else
+ Cpu_table.clock_speed = 40000000;
+ Cpu_table.timer_average_overhead = 3;
+ Cpu_table.timer_least_valid = 3;
+#endif
+
+ /*
+ * Call this in case we use TERMIOS for console I/O
+ */
+ m8xx_uart_reserve_resources( &BSP_Configuration );
+
+ m8xx.scc2.sccm=0;
+ m8xx.scc2p.rbase=0;
+ m8xx.scc2p.tbase=0;
+ m8xx_cp_execute_cmd( M8xx_CR_OP_STOP_TX | M8xx_CR_CHAN_SCC2 );
+}
+
diff --git a/c/src/lib/libbsp/powerpc/mbx8xx/startup/bspstart.c.nocache b/c/src/lib/libbsp/powerpc/mbx8xx/startup/bspstart.c.nocache
new file mode 100644
index 0000000000..055e84ad27
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/mbx8xx/startup/bspstart.c.nocache
@@ -0,0 +1,202 @@
+/* bspstart.c
+ *
+ * This set of routines starts the application. It includes application,
+ * board, and monitor specific initialization and configuration.
+ * The generic CPU dependent initialization has been performed
+ * before this routine is invoked.
+ *
+ * COPYRIGHT (c) 1989-1998.
+ * On-Line Applications Research Corporation (OAR).
+ * Copyright assigned to U.S. Government, 1994.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.OARcorp.com/rtems/license.html.
+ *
+ * Modifications for MBX860:
+ * Copyright (c) 1999, National Research Council of Canada
+ *
+ * $Id$
+ */
+
+#include <bsp.h>
+#include <rtems/libio.h>
+
+#include <libcsupport.h>
+
+#include <string.h>
+
+#ifdef STACK_CHECKER_ON
+#include <stackchk.h>
+#endif
+
+/*
+ * The original table from the application (in ROM) and our copy of it with
+ * some changes. Configuration is defined in <confdefs.h>. Make sure that
+ * our configuration tables are uninitialized so that they get allocated in
+ * the .bss section (RAM).
+ */
+extern rtems_configuration_table Configuration;
+rtems_configuration_table BSP_Configuration;
+
+rtems_cpu_table Cpu_table;
+
+char *rtems_progname;
+
+/*
+ * Use the shared implementations of the following routines.
+ * Look in rtems/c/src/lib/libbsp/shared/bsppost.c and
+ * rtems/c/src/lib/libbsp/shared/bsplibc.c.
+ */
+void bsp_postdriver_hook(void);
+void bsp_libc_init( void *, unsigned32, int );
+
+/*
+ * bsp_pretasking_hook
+ *
+ * Called when RTEMS initialization is complete but before interrupts and
+ * tasking are enabled. Used to setup libc and install any BSP extensions.
+ *
+ * Must not use libc (to do io) from here, since drivers are not yet
+ * initialized.
+ *
+ * Installed in the rtems_cpu_table defined in
+ * rtems/c/src/exec/score/cpu/m68k/cpu.h in main() below. Called from
+ * rtems_initialize_executive() defined in rtems/c/src/exec/sapi/src/init.c
+ *
+ * Input parameters: NONE
+ *
+ * Output parameters: NONE
+ *
+ * Return values: NONE
+ */
+void bsp_pretasking_hook(void)
+{
+ /*
+ * These are assigned addresses in the linkcmds file for the BSP. This
+ * approach is better than having these defined as manifest constants and
+ * compiled into the kernel, but it is still not ideal when dealing with
+ * multiprocessor configuration in which each board as a different memory
+ * map. A better place for defining these symbols might be the makefiles.
+ * Consideration should also be given to developing an approach in which
+ * the kernel and the application can be linked and burned into ROM
+ * independently of each other.
+ */
+ extern unsigned char _HeapStart;
+ extern unsigned char _HeapEnd;
+
+ bsp_libc_init( &_HeapStart, &_HeapEnd - &_HeapStart, 0 );
+
+#ifdef STACK_CHECKER_ON
+ /*
+ * Initialize the stack bounds checker
+ * We can either turn it on here or from the app.
+ */
+
+ Stack_check_Initialize();
+#endif /* STACK_CHECKER_ON */
+
+#ifdef RTEMS_DEBUG
+ rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
+#endif
+}
+
+
+/*
+ * bsp_start()
+ *
+ * Board-specific initialization code. Called from the generic boot_card()
+ * function defined in rtems/c/src/lib/libbsp/shared/main.c. That function
+ * does some of the board independent initialization. It is called from the
+ * MBX8xx entry point _start() defined in
+ * rtems/c/src/lib/libbsp/powerpc/mbx8xx/startup/start.S
+ *
+ * _start() has set up a stack, has zeroed the .bss section, has turned off
+ * interrupts, and placed the processor in the supervisor mode. boot_card()
+ * has left the processor in that state when bsp_start() was called.
+ *
+ * RUNS WITH ADDRESS TRANSLATION AND CACHING TURNED OFF!
+ * ASSUMES THAT THE VIRTUAL ADDRESSES WILL BE IDENTICAL TO THE PHYSICAL
+ * ADDRESSES. Software-controlled address translation would be required
+ * otherwise.
+ *
+ * Input parameters: NONE
+ *
+ * Output parameters: NONE
+ *
+ * Return values: NONE
+ */
+void bsp_start(void)
+{
+ extern void *_WorkspaceBase;
+ unsigned32 r1;
+
+ mmu_init();
+
+ /*
+ * Enable instruction and data caches. Do not force writethrough mode.
+ */
+ #ifdef INSTRUCTION_CACHE_ENABLE
+ r1 = M8xx_CACHE_CMD_ENABLE;
+ _mtspr( M8xx_IC_CST, r1 );
+ _isync;
+ #endif
+
+ /*
+ * Warning: EPPCBug 1.1 chokes to death if the data cache is turned on.
+ * Set DATA_CACHE_ENABLE to zero in mbx8xx.cfg if EPPCBUG is used.
+ */
+ #ifdef DATA_CACHE_ENABLE
+ r1 = M8xx_CACHE_CMD_ENABLE;
+ _mtspr( M8xx_DC_CST, r1 );
+ _isync;
+ #endif
+
+ /*
+ * Allocate the memory for the RTEMS Work Space. This can come from
+ * a variety of places: hard coded address, malloc'ed from outside
+ * RTEMS world (e.g. simulator or primitive memory manager), or (as
+ * typically done by stock BSPs) by subtracting the required amount
+ * of work space from the last physical address on the CPU board.
+ *
+ * In this case, the memory is not malloc'ed. It is just
+ * "pulled from the air".
+ */
+ BSP_Configuration.work_space_start = (void *)&_WorkspaceBase;
+
+ /*
+ * initialize the CPU table for this BSP
+ */
+
+ Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */
+ Cpu_table.postdriver_hook = bsp_postdriver_hook;
+ if( Cpu_table.interrupt_stack_size < 4 * 1024 )
+ Cpu_table.interrupt_stack_size = 4 * 1024;
+
+ Cpu_table.clicks_per_usec = 1; /* for 4MHz extclk */
+ Cpu_table.serial_per_sec = 10000000;
+ Cpu_table.serial_external_clock = 1;
+ Cpu_table.serial_xon_xoff = 0;
+ Cpu_table.serial_cts_rts = 1;
+ Cpu_table.serial_rate = 9600;
+#if ( defined(mbx821_001) || defined(mbx821_001b) || defined(mbx860_001b) )
+ Cpu_table.clock_speed = 50000000;
+ Cpu_table.timer_average_overhead = 3;
+ Cpu_table.timer_least_valid = 3;
+#else
+ Cpu_table.clock_speed = 40000000;
+ Cpu_table.timer_average_overhead = 3;
+ Cpu_table.timer_least_valid = 3;
+#endif
+
+ /*
+ * Call this in case we use TERMIOS for console I/O
+ */
+ m8xx_uart_reserve_resources( &BSP_Configuration );
+
+ m8xx.scc2.sccm=0;
+ m8xx.scc2p.rbase=0;
+ m8xx.scc2p.tbase=0;
+ m8xx_cp_execute_cmd( M8xx_CR_OP_STOP_TX | M8xx_CR_CHAN_SCC2 );
+}
+