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Diffstat (limited to 'arch/powerpc/boot/devtree.c')
| -rw-r--r-- | arch/powerpc/boot/devtree.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/powerpc/boot/devtree.c b/arch/powerpc/boot/devtree.c index 60f561e307a..5d12336dc36 100644 --- a/arch/powerpc/boot/devtree.c +++ b/arch/powerpc/boot/devtree.c @@ -350,3 +350,23 @@ int dt_is_compatible(void *node, const char *compat) return 0; } + +int dt_get_virtual_reg(void *node, void **addr, int nres) +{ + unsigned long xaddr; + int n; + + n = getprop(node, "virtual-reg", addr, nres * 4); + if (n > 0) + return n / 4; + + for (n = 0; n < nres; n++) { + if (!dt_xlate_reg(node, n, &xaddr, NULL)) + break; + + addr[n] = (void *)xaddr; + } + + return n; +} + |