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clear PCI memory

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This commit is contained in:
Markus Fröschle
2016-10-23 14:25:39 +00:00
parent d5394dbaad
commit 6b44cdcf0c
2 changed files with 13 additions and 6 deletions
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5
BaS_gcc/tos/pci_test/Makefile
View File

@@ -35,7 +35,8 @@ APP=pci_test.prg
TEST_APP=$(APP)
CFLAGS=\
-O0\
-O2\
-fomit-frame-pointer \
-g\
-Wl,-Map,mapfile\
-Wl,--defsym -Wl,__MBAR=0xff000000\
@@ -84,7 +85,7 @@ $(1)_OBJS=$(patsubst %,$(1)/objs/%,$(OBJS))
$(1)/$(APP): $$($(1)_OBJS)
@echo CC $$@
@$(CC) $$(CFLAGS) -o $$@ $(LIBCMINI)/$(1)/startup.o $$($(1)_OBJS) -L$(LIBCMINI)/$(1) $(LIBS)
@$(STRIP) $$@
#@$(STRIP) $$@
endef
$(foreach DIR,$(TRGTDIRS),$(eval $(call CC_TEMPLATE,$(DIR))))

14
BaS_gcc/tos/pci_test/sources/pci_test.c
View File

@@ -12,6 +12,9 @@
#define SYSCLK 132000
#define KB 1024UL
#define MB (KB * KB)
volatile int32_t time, start, end;
int i;
@@ -166,14 +169,17 @@ void do_tests(struct pci_native_driver_interface *pci)
"", "");
printf("\r\n");
if (rd->start != 0L)
if (rd->start != 0L && rd->start == 0x80000000)
{
hexdump((uint8_t *) rd->start + rd->offset, 128);
hexdump((uint8_t *) rd->start + rd->offset, 64);
memset((uint8_t *) rd-> start + rd->offset, 0, 128);
memset((uint8_t *) rd-> start + rd->offset, 0, 128 * MB);
printf("memory cleared\r\n");
hexdump((uint8_t *) rd->start + rd->offset, 128);
hexdump((uint8_t *) rd->start + rd->offset, 64);
memset((uint8_t *) rd->start + rd->offset, 0xaa, 128 * MB);
hexdump((uint8_t *) rd->start + rd->offset, 64);
}
rd = (struct pci_rd *) (((uintptr_t) rd) + (uintptr_t) rd->next);