ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/target/linux/bcm47xx/patches-5.4/400-mtd-bcm47xxpart-get-nvram.patch b/target/linux/bcm47xx/patches-5.4/400-mtd-bcm47xxpart-get-nvram.patch
new file mode 100644
index 0000000..17abe89
--- /dev/null
+++ b/target/linux/bcm47xx/patches-5.4/400-mtd-bcm47xxpart-get-nvram.patch
@@ -0,0 +1,34 @@
+--- a/drivers/mtd/parsers/bcm47xxpart.c
++++ b/drivers/mtd/parsers/bcm47xxpart.c
+@@ -98,6 +98,7 @@ static int bcm47xxpart_parse(struct mtd_
+ int trx_num = 0; /* Number of found TRX partitions */
+ int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, };
+ int err;
++ bool found_nvram = false;
+
+ /*
+ * Some really old flashes (like AT45DB*) had smaller erasesize-s, but
+@@ -279,12 +280,23 @@ static int bcm47xxpart_parse(struct mtd_
+ if (buf[0] == NVRAM_HEADER) {
+ bcm47xxpart_add_part(&parts[curr_part++], "nvram",
+ master->size - blocksize, 0);
++ found_nvram = true;
+ break;
+ }
+ }
+
+ kfree(buf);
+
++ if (!found_nvram) {
++ pr_err("can not find a nvram partition reserve last block\n");
++ bcm47xxpart_add_part(&parts[curr_part++], "nvram_guess",
++ master->size - blocksize * 2, MTD_WRITEABLE);
++ for (i = 0; i < curr_part; i++) {
++ if (parts[i].size + parts[i].offset == master->size)
++ parts[i].offset -= blocksize * 2;
++ }
++ }
++
+ /*
+ * Assume that partitions end at the beginning of the one they are
+ * followed by.