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bsps: Copy FDT only if source != destination

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This commit is contained in:
Sebastian Huber
2016-04-22 13:02:55 +02:00
parent d35e6dded3
commit 178180aa1c
1 changed files with 10 additions and 7 deletions
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17
c/src/lib/libbsp/shared/src/bsp-fdt.c
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@@ -42,15 +42,18 @@ void bsp_fdt_copy(const void *src)
#else
uint32_t *d = &bsp_fdt_blob[0];
#endif
uint32_t m = MIN(sizeof(bsp_fdt_blob), fdt_totalsize(src));
uint32_t n = (m + sizeof(*d) - 1) / sizeof(*d);
uint32_t i;
for (i = 0; i < n; ++i) {
d[i] = s[i];
if (s != d) {
uint32_t m = MIN(sizeof(bsp_fdt_blob), fdt_totalsize(src));
uint32_t n = (m + sizeof(*d) - 1) / sizeof(*d);
uint32_t i;
for (i = 0; i < n; ++i) {
d[i] = s[i];
}
rtems_cache_flush_multiple_data_lines(d, m);
}
rtems_cache_flush_multiple_data_lines(d, m);
}
const void *bsp_fdt_get(void)