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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 f53e5d3175
commit d96d21aba8
2 changed files with 13 additions and 6 deletions
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14
tos/pci_test/sources/pci_test.c
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@@ -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);