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authorSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-20 10:35:35 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-20 13:52:14 +0200
commit99648958668d3a33ee57974479b36201fe303f34 (patch)
tree6f27ea790e2823c6156e71219a4f54680263fac6 /bsps/m68k/mcf5225x
parentbsps: Move start files to bsps (diff)
downloadrtems-99648958668d3a33ee57974479b36201fe303f34.tar.bz2
bsps: Move startup files to bsps
Adjust build support files to new directory layout. This patch is a part of the BSP source reorganization. Update #3285.
Diffstat (limited to 'bsps/m68k/mcf5225x')
-rw-r--r--bsps/m68k/mcf5225x/start/bsp_specs10
-rw-r--r--bsps/m68k/mcf5225x/start/bspclean.c27
-rw-r--r--bsps/m68k/mcf5225x/start/bspstart.c35
-rw-r--r--bsps/m68k/mcf5225x/start/init5225x.c84
-rw-r--r--bsps/m68k/mcf5225x/start/linkcmds195
5 files changed, 351 insertions, 0 deletions
diff --git a/bsps/m68k/mcf5225x/start/bsp_specs b/bsps/m68k/mcf5225x/start/bsp_specs
new file mode 100644
index 0000000000..3a20757667
--- /dev/null
+++ b/bsps/m68k/mcf5225x/start/bsp_specs
@@ -0,0 +1,10 @@
+%rename endfile old_endfile
+%rename startfile old_startfile
+
+*startfile:
+%{!qrtems: %(old_startfile)} \
+%{!nostdlib: %{qrtems: crti.o%s crtbegin.o%s}}
+
+*endfile:
+%{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s crtn.o%s}
+
diff --git a/bsps/m68k/mcf5225x/start/bspclean.c b/bsps/m68k/mcf5225x/start/bspclean.c
new file mode 100644
index 0000000000..5cd1aed1e9
--- /dev/null
+++ b/bsps/m68k/mcf5225x/start/bspclean.c
@@ -0,0 +1,27 @@
+/*
+ * This routine returns control from RTEMS to the monitor.
+ *
+ * Author:
+ * David Fiddes, D.J@fiddes.surfaid.org
+ * http://www.calm.hw.ac.uk/davidf/coldfire/
+ *
+ * COPYRIGHT (c) 1989-1998.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <bsp/bootcard.h>
+#include <rtems/bspIo.h>
+
+void bsp_fatal_extension(
+ rtems_fatal_source source,
+ bool always_set_to_false,
+ rtems_fatal_code error
+)
+{
+ printk("\nRTEMS exited!\n");
+}
diff --git a/bsps/m68k/mcf5225x/start/bspstart.c b/bsps/m68k/mcf5225x/start/bspstart.c
new file mode 100644
index 0000000000..d5e0f37dc8
--- /dev/null
+++ b/bsps/m68k/mcf5225x/start/bspstart.c
@@ -0,0 +1,35 @@
+/*
+ * This routine does the bulk of the system initialisation.
+ */
+
+/*
+ * Author:
+ * David Fiddes, D.J@fiddes.surfaid.org
+ * http://www.calm.hw.ac.uk/davidf/coldfire/
+ *
+ * COPYRIGHT (c) 1989-1998.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <bsp/bootcard.h>
+
+void __attribute__((weak)) bsp_start(void)
+{
+}
+
+uint32_t __attribute__((weak)) bsp_get_CPU_clock_speed(void)
+{
+ #define DEF_CLOCK_SPEED 8000000.0F //8.0 MHz
+ #define MCF_MFD0_2_MASK 0x7000U
+ #define MCF_RFD0_2_MASK 0x0700U
+ #define MCF_MFD0_2_OFFSET 4U
+
+ #define SPEED_BIAS ((((MCF_CLOCK_SYNCR & MCF_MFD0_2_MASK) >> 11) + MCF_MFD0_2_OFFSET) / (float)(((MCF_CLOCK_SYNCR & MCF_RFD0_2_MASK)>>7) ? : 1.0F))
+
+ return MCF_CLOCK_SYNCR & MCF_CLOCK_SYNCR_PLLEN ? SPEED_BIAS * DEF_CLOCK_SPEED : DEF_CLOCK_SPEED;
+}
diff --git a/bsps/m68k/mcf5225x/start/init5225x.c b/bsps/m68k/mcf5225x/start/init5225x.c
new file mode 100644
index 0000000000..caf7db1953
--- /dev/null
+++ b/bsps/m68k/mcf5225x/start/init5225x.c
@@ -0,0 +1,84 @@
+/*
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ *
+ * This is where the real hardware setup is done. A minimal stack
+ * has been provided by the start.S code. No normal C or RTEMS
+ * functions can be called from here.
+ */
+
+#include <bsp.h>
+#include <bsp/bootcard.h>
+
+extern void _wr_vbr(uint32_t);
+
+extern long _d0_reset,_d1_reset,_M68kSpuriousInterruptCount;
+
+/*
+ * From linkcmds
+ */
+
+extern uint8_t _INTERRUPT_VECTOR[];
+
+extern uint8_t _clear_start[];
+extern uint8_t _clear_end[];
+
+extern uint8_t _data_src_start[];
+extern uint8_t _data_dest_start[];
+extern uint8_t _data_dest_end[];
+
+void Init5225x(void)
+{
+ register uint32_t i;
+ register uint32_t *dp, *sp;
+ register uint8_t *dbp, *sbp;
+
+ /*
+ * Copy the vector table to RAM
+ */
+
+ if (&_VBR != (void *)_INTERRUPT_VECTOR) {
+ sp = (uint32_t *) _INTERRUPT_VECTOR;
+ dp = (uint32_t *) &_VBR;
+ for (i = 0; i < 256; i++) {
+ *dp++ = *sp++;
+ }
+ }
+
+ /*
+ * Move initialized data from ROM to RAM.
+ */
+ if (_data_src_start != _data_dest_start) {
+ dbp = (uint8_t *) _data_dest_start;
+ sbp = (uint8_t *) _data_src_start;
+ i = _data_dest_end - _data_dest_start;
+ while (i--)
+ *dbp++ = *sbp++;
+ }
+
+ asm __volatile__ ("move.l %%d5,%0\n\t":"=r" (_d0_reset));
+ asm __volatile__ ("move.l %%d6,%0\n\t":"=r" (_d1_reset));
+
+ /*
+ * Zero uninitialized data
+ */
+
+ if (_clear_start != _clear_end) {
+ sbp = _clear_start;
+ dbp = _clear_end;
+ i = dbp - sbp;
+ while (i--)
+ *sbp++ = 0;
+ }
+
+//_wr_vbr((uint32_t) &_VBR);
+ asm volatile("move.l %0,%%d7;movec %%d7,%%vbr\n\t"::"i"(&_VBR): "cc");
+
+ /*
+ * We have to call some kind of RTEMS function here!
+ */
+
+ boot_card(0);
+ for (;;) ;
+}
diff --git a/bsps/m68k/mcf5225x/start/linkcmds b/bsps/m68k/mcf5225x/start/linkcmds
new file mode 100644
index 0000000000..81d2058872
--- /dev/null
+++ b/bsps/m68k/mcf5225x/start/linkcmds
@@ -0,0 +1,195 @@
+/*
+ * This file contains directives for the GNU linker which are specific
+ * to the Freescale ColdFire mcf52258
+ *
+ * COPYRIGHT (c) 1989-1999.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.e
+ */
+
+/*
+ * Declare some sizes.
+ */
+RamBase = DEFINED(RamBase) ? RamBase : 0x20000000;
+RamSize = DEFINED(RamSize) ? RamSize : 64K;
+HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0;
+_StackSize = DEFINED(_StackSize) ? _StackSize : 0x400;
+_FlashBase = DEFINED(_FlashBase) ? _FlashBase : 0x00000000;
+
+_VBR = 0x20000000;
+
+ENTRY(start)
+STARTUP(start.o)
+
+
+MEMORY
+{
+ sram : ORIGIN = 0x20000000, LENGTH = 64K
+ flash : ORIGIN = 0x00000000, LENGTH = 512K
+}
+
+SECTIONS
+{
+ /*
+ * Text, data and bss segments
+ */
+ .text : {
+
+ *(.text*)
+ *(.ram_code)
+
+ /*
+ * C++ constructors/destructors
+ */
+ *(.gnu.linkonce.t.*)
+
+ /*
+ * Initialization and finalization code.
+ *
+ * Various files can provide initialization and finalization
+ * functions. crtbegin.o and crtend.o are two instances. The
+ * body of these functions are in .init and .fini sections. We
+ * accumulate the bodies here, and prepend function prologues
+ * from crti.o and function epilogues from crtn.o. crti.o must
+ * be linked first; crtn.o must be linked last. Because these
+ * are wildcards, it doesn't matter if the user does not
+ * actually link against crti.o and crtn.o; the linker won't
+ * look for a file to match a wildcard. The wildcard also
+ * means that it doesn't matter which directory crti.o and
+ * crtn.o are in.
+ */
+ PROVIDE (_init = .);
+ *crti.o(.init)
+ *(.init)
+ *crtn.o(.init)
+ PROVIDE (_fini = .);
+ *crti.o(.fini)
+ *(.fini)
+ *crtn.o(.fini)
+
+ /*
+ * Special FreeBSD sysctl sections.
+ */
+ . = ALIGN (16);
+ __start_set_sysctl_set = .;
+ *(set_sysctl_*);
+ __stop_set_sysctl_set = ABSOLUTE(.);
+ *(set_domain_*);
+ *(set_pseudo_*);
+
+ /*
+ * C++ constructors/destructors
+ *
+ * gcc uses crtbegin.o to find the start of the constructors
+ * and destructors so we make sure it is first. Because this
+ * is a wildcard, it doesn't matter if the user does not
+ * actually link against crtbegin.o; the linker won't look for
+ * a file to match a wildcard. The wildcard also means that
+ * it doesn't matter which directory crtbegin.o is in. The
+ * constructor and destructor list are terminated in
+ * crtend.o. The same comments apply to it.
+ */
+ . = ALIGN (16);
+ *crtbegin.o(.ctors)
+ *(.ctors)
+ *crtend.o(.ctors)
+ *crtbegin.o(.dtors)
+ *(.dtors)
+ *crtend.o(.dtors)
+
+ /*
+ * Exception frame info
+ */
+ . = ALIGN (16);
+ *(.eh_frame)
+
+ /*
+ * Read-only data
+ */
+ . = ALIGN (16);
+ _rodata_start = . ;
+ *(.rodata*)
+ KEEP (*(SORT(.rtemsroset.*)))
+ *(.gnu.linkonce.r*)
+
+ . = ALIGN (16);
+
+ *(.console_gdb_xfer)
+ *(.bootstrap_data)
+ } >flash
+
+ .tdata : {
+ _TLS_Data_begin = .;
+ *(.tdata .tdata.* .gnu.linkonce.td.*)
+ _TLS_Data_end = .;
+ . = ALIGN(16);
+ _estuff = .;
+ PROVIDE (_etext = .);
+ } >flash
+
+ .tbss : {
+ _TLS_BSS_begin = .;
+ *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon)
+ _TLS_BSS_end = .;
+ } >flash
+
+ _TLS_Data_size = _TLS_Data_end - _TLS_Data_begin;
+ _TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin;
+ _TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin;
+ _TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin;
+ _TLS_Size = _TLS_BSS_end - _TLS_Data_begin;
+ _TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss));
+
+ .data 0x20000400 : AT (_estuff)
+ {
+ PROVIDE( _data_dest_start = . );
+ PROVIDE( _copy_start = .);
+ *(.data*)
+ KEEP (*(SORT(.rtemsrwset.*)))
+ *(.gnu.linkonce.d*)
+ *(.gcc_except_table*)
+ *(.jcr)
+ . = ALIGN (16);
+ PROVIDE (_edata = .);
+ PROVIDE (_copy_end = .);
+ PROVIDE (_data_dest_end = . );
+ } >sram
+
+ _data_src_start = _estuff;
+ _data_src_end = _data_dest_start + SIZEOF(.data);
+
+ .bss :
+ {
+ PROVIDE (_clear_start = .);
+ *(.bss*)
+ *(COMMON)
+ . = ALIGN (16);
+ PROVIDE (_end = .);
+ PROVIDE (_clear_end = .);
+ } >sram
+
+ .stack :
+ {
+ /*
+ * Starting Stack
+ */
+ . += _StackSize;
+ . = ALIGN (16);
+ PROVIDE(_StackInit = .);
+ PROVIDE(WorkAreaBase = .);
+ } >sram
+
+ /* Stabs debugging sections. */
+ .stab 0 : { *(.stab) }
+ .stabstr 0 : { *(.stabstr) }
+ .stab.excl 0 : { *(.stab.excl) }
+ .stab.exclstr 0 : { *(.stab.exclstr) }
+ .stab.index 0 : { *(.stab.index) }
+ .stab.indexstr 0 : { *(.stab.indexstr) }
+ .comment 0 : { *(.comment) }
+
+ PROVIDE (end_of_all = .);
+}