X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Flib%2Fcrc8.c;fp=qemu%2Froms%2Fu-boot%2Flib%2Fcrc8.c;h=8b68a29e40be79d95c85ce88c9c6bd65b643a1be;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/roms/u-boot/lib/crc8.c b/qemu/roms/u-boot/lib/crc8.c
new file mode 100644
index 000000000..8b68a29e4
--- /dev/null
+++ b/qemu/roms/u-boot/lib/crc8.c
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2013 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include "linux/crc8.h"
+
+unsigned int crc8(const unsigned char *vptr, int len)
+{
+	const unsigned char *data = vptr;
+	unsigned int crc = 0;
+	int i, j;
+
+	for (j = len; j; j--, data++) {
+		crc ^= (*data << 8);
+		for (i = 8; i; i--) {
+			if (crc & 0x8000)
+				crc ^= (0x1070 << 3);
+			crc <<= 1;
+		}
+	}
+
+	return (crc >> 8) & 0xff;
+}