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authorJoel Sherrill <joel.sherrill@OARcorp.com>2008-09-19 15:49:28 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2008-09-19 15:49:28 +0000
commit2fbe159e9ace91a32649683c97f729c4d40c5b7d (patch)
tree36a246c26ac972581661494e9f5b31bf4e160244 /c/src/lib/libbsp
parent2008-09-18 Joel Sherrill <joel.sherrill@oarcorp.com> (diff)
downloadrtems-2fbe159e9ace91a32649683c97f729c4d40c5b7d.tar.bz2
2008-09-19 Joel Sherrill <joel.sherrill@oarcorp.com>
* Makefile.am, startup/bspstart.c: Split out bspstart contents. Move cache code to libcpu. * startup/bspgetcpuclockspeed.c: New file.
Diffstat (limited to 'c/src/lib/libbsp')
-rw-r--r--c/src/lib/libbsp/m68k/mcf5235/ChangeLog6
-rw-r--r--c/src/lib/libbsp/m68k/mcf5235/Makefile.am7
-rw-r--r--c/src/lib/libbsp/m68k/mcf5235/startup/bspgetcpuclockspeed.c20
-rw-r--r--c/src/lib/libbsp/m68k/mcf5235/startup/bspstart.c126
4 files changed, 39 insertions, 120 deletions
diff --git a/c/src/lib/libbsp/m68k/mcf5235/ChangeLog b/c/src/lib/libbsp/m68k/mcf5235/ChangeLog
index 6a21ca04b0..b17d627b81 100644
--- a/c/src/lib/libbsp/m68k/mcf5235/ChangeLog
+++ b/c/src/lib/libbsp/m68k/mcf5235/ChangeLog
@@ -1,3 +1,9 @@
+2008-09-19 Joel Sherrill <joel.sherrill@oarcorp.com>
+
+ * Makefile.am, startup/bspstart.c: Split out bspstart contents. Move
+ cache code to libcpu.
+ * startup/bspgetcpuclockspeed.c: New file.
+
2008-09-18 Joel Sherrill <joel.sherrill@oarcorp.com>
* include/bsp.h: Remove unnecessary boilerplate comments.
diff --git a/c/src/lib/libbsp/m68k/mcf5235/Makefile.am b/c/src/lib/libbsp/m68k/mcf5235/Makefile.am
index f2e7cb7b83..737bde8a50 100644
--- a/c/src/lib/libbsp/m68k/mcf5235/Makefile.am
+++ b/c/src/lib/libbsp/m68k/mcf5235/Makefile.am
@@ -28,9 +28,9 @@ dist_project_lib_DATA += startup/linkcmds startup/linkcmdsflash \
startup_SOURCES = startup/bspclean.c ../../shared/bsppredriverhook.c \
../../shared/bsplibc.c ../../shared/bsppost.c \
- ../../shared/bsppretaskinghook.c ../../shared/bspgetworkarea.c \
- startup/init5235.c startup/bspstart.c ../../shared/bootcard.c \
- ../../shared/sbrk.c ../../m68k/shared/setvec.c \
+ startup/bspgetcpuclockspeed.c ../../shared/bsppretaskinghook.c \
+ ../../shared/bspgetworkarea.c startup/init5235.c startup/bspstart.c \
+ ../../shared/bootcard.c ../../shared/sbrk.c ../../m68k/shared/setvec.c \
../../shared/gnatinstallhandler.c
clock_SOURCES = clock/clock.c
console_SOURCES = console/console.c
@@ -51,6 +51,7 @@ libbsp_a_SOURCES = $(startup_SOURCES) $(clock_SOURCES) $(console_SOURCES) \
libbsp_a_LIBADD = \
../../../libcpu/@RTEMS_CPU@/shared/cache.rel \
+ ../../../libcpu/@RTEMS_CPU@/mcf5235/cachepd.rel \
../../../libcpu/@RTEMS_CPU@/shared/misc.rel
if HAS_NETWORKING
libbsp_a_LIBADD += network.rel
diff --git a/c/src/lib/libbsp/m68k/mcf5235/startup/bspgetcpuclockspeed.c b/c/src/lib/libbsp/m68k/mcf5235/startup/bspgetcpuclockspeed.c
new file mode 100644
index 0000000000..347d6b019d
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/mcf5235/startup/bspgetcpuclockspeed.c
@@ -0,0 +1,20 @@
+/*
+ * COPYRIGHT (c) 1989-2008.
+ * 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.com/license/LICENSE.
+ *
+ * $Id$
+ */
+
+#include <bsp.h>
+
+extern char _CPUClockSpeed[];
+
+uint32_t get_CPU_clock_speed(void)
+{
+ return( (uint32_t)_CPUClockSpeed);
+}
diff --git a/c/src/lib/libbsp/m68k/mcf5235/startup/bspstart.c b/c/src/lib/libbsp/m68k/mcf5235/startup/bspstart.c
index b0193d6a62..cbfa25124f 100644
--- a/c/src/lib/libbsp/m68k/mcf5235/startup/bspstart.c
+++ b/c/src/lib/libbsp/m68k/mcf5235/startup/bspstart.c
@@ -1,16 +1,5 @@
/*
- * BSP startup
- *
- * This routine 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.
- *
- * Author:
- * David Fiddes, D.J@fiddes.surfaid.org
- * http://www.calm.hw.ac.uk/davidf/coldfire/
- *
- * COPYRIGHT (c) 1989-1998.
+ * COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
@@ -24,19 +13,6 @@
#include <bsp.h>
/*
- * Cacheable areas
- */
-#define SDRAM_BASE 0
-#define SDRAM_SIZE (16*1024*1024)
-
-/*
- * CPU-space access
- */
-#define m68k_set_cacr(_cacr) asm volatile ("movec %0,%%cacr" : : "d" (_cacr))
-#define m68k_set_acr0(_acr0) asm volatile ("movec %0,%%acr0" : : "d" (_acr0))
-#define m68k_set_acr1(_acr1) asm volatile ("movec %0,%%acr1" : : "d" (_acr1))
-
-/*
* Read/write copy of common cache
* Split I/D cache
* Allow CPUSHL to invalidate a cache line
@@ -44,90 +20,13 @@
* No burst transfers on non-cacheable accesses
* Default cache mode is *disabled* (cache only ACRx areas)
*/
-static uint32_t cacr_mode = MCF5XXX_CACR_CENB |
- MCF5XXX_CACR_DBWE |
- MCF5XXX_CACR_DCM;
-/*
- * Cannot be frozen
- */
-void _CPU_cache_freeze_data(void) {}
-void _CPU_cache_unfreeze_data(void) {}
-void _CPU_cache_freeze_instruction(void) {}
-void _CPU_cache_unfreeze_instruction(void) {}
+uint32_t cacr_mode = MCF5XXX_CACR_CENB | MCF5XXX_CACR_DBWE | MCF5XXX_CACR_DCM;
/*
- * Write-through data cache -- flushes are unnecessary
+ * Cacheable areas
*/
-void _CPU_cache_flush_1_data_line(const void *d_addr) {}
-void _CPU_cache_flush_entire_data(void) {}
-
-void _CPU_cache_enable_instruction(void)
-{
- rtems_interrupt_level level;
-
- rtems_interrupt_disable(level);
- cacr_mode &= ~MCF5XXX_CACR_DIDI;
- m68k_set_cacr(cacr_mode);
- rtems_interrupt_enable(level);
-}
-
-void _CPU_cache_disable_instruction(void)
-{
- rtems_interrupt_level level;
-
- rtems_interrupt_disable(level);
- cacr_mode |= MCF5XXX_CACR_DIDI;
- m68k_set_cacr(cacr_mode);
- rtems_interrupt_enable(level);
-}
-
-void _CPU_cache_invalidate_entire_instruction(void)
-{
- m68k_set_cacr(cacr_mode | MCF5XXX_CACR_CINV | MCF5XXX_CACR_INVI);
-}
-
-void _CPU_cache_invalidate_1_instruction_line(const void *addr)
-{
- /*
- * Top half of cache is I-space
- */
- addr = (void *)((int)addr | 0x400);
- asm volatile ("cpushl %%bc,(%0)" :: "a" (addr));
-}
-
-void _CPU_cache_enable_data(void)
-{
- rtems_interrupt_level level;
-
- rtems_interrupt_disable(level);
- cacr_mode &= ~MCF5XXX_CACR_DISD;
- m68k_set_cacr(cacr_mode);
- rtems_interrupt_enable(level);
-}
-
-void _CPU_cache_disable_data(void)
-{
- rtems_interrupt_level level;
-
- rtems_interrupt_disable(level);
- cacr_mode |= MCF5XXX_CACR_DISD;
- m68k_set_cacr(cacr_mode);
- rtems_interrupt_enable(level);
-}
-
-void _CPU_cache_invalidate_entire_data(void)
-{
- m68k_set_cacr(cacr_mode | MCF5XXX_CACR_CINV | MCF5XXX_CACR_INVD);
-}
-
-void _CPU_cache_invalidate_1_data_line(const void *addr)
-{
- /*
- * Bottom half of cache is D-space
- */
- addr = (void *)((int)addr & ~0x400);
- asm volatile ("cpushl %%bc,(%0)" :: "a" (addr));
-}
+extern char RamBase[];
+extern char RamSize[];
/*
* bsp_start
@@ -146,10 +45,10 @@ void bsp_start( void )
/*
* Cache SDRAM
*/
- m68k_set_acr0(MCF5XXX_ACR_AB(SDRAM_BASE) |
- MCF5XXX_ACR_AM(SDRAM_SIZE-1) |
- MCF5XXX_ACR_EN |
- MCF5XXX_ACR_BWE |
+ m68k_set_acr0(MCF5XXX_ACR_AB((uintptr_t)RamBase) |
+ MCF5XXX_ACR_AM((uintptr_t)RamSize-1) |
+ MCF5XXX_ACR_EN |
+ MCF5XXX_ACR_BWE |
MCF5XXX_ACR_SM_IGNORE);
/*
@@ -157,10 +56,3 @@ void bsp_start( void )
*/
m68k_set_cacr(cacr_mode);
}
-
-extern char _CPUClockSpeed[];
-
-uint32_t get_CPU_clock_speed(void)
-{
- return( (uint32_t)_CPUClockSpeed);
-}