Changeset 518edef in rtems for c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c

Timestamp:

Jan 31, 2005, 7:03:41 PM (15 years ago)

Author:

Eric Norum <WENorum@…>

Branches:

4.10, 4.11, 4.8, 4.9, master

Children:

fa5dfe8

Parents:

9be8c2d

Message:

Processor doesn't snoop FEC DMA so we must invalidate the cache appropriately.

File:

• c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c (modified) (3 diffs)

c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c

@@ -110 +110 @@
 void _CPU_cache_invalidate_1_instruction_line(const void *addr)
 {
-  asm volatile ("cpushl %%ic,(%0)" :: "a" (addr));
+    /*
+     * Top half of cache is I-space
+     */
+    addr = (void *)((int)addr | 0x400);
+    asm volatile ("cpushl %%bc,(%0)" :: "a" (addr));
 }
 
@@ -128 +132 @@
 
     rtems_interrupt_disable(level);
+    rtems_interrupt_disable(level);
     cacr_mode |= MCF5XXX_CACR_DISD;
     m68k_set_cacr(cacr_mode);
@@ -140 +145 @@
 void _CPU_cache_invalidate_1_data_line(const void *addr)
 {
-  asm volatile ("cpushl %%dc,(%0)" :: "a" (addr));
+    /*
+     * Bottom half of cache is D-space
+     */
+    addr = (void *)((int)addr & ~0x400);
+    asm volatile ("cpushl %%bc,(%0)" :: "a" (addr));
 }