OpenWrt – Rev 4

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The Freescale downstream vendor kernel has a patch that exports the bch
flash geometry via a debugfs file. This is not available in mainline linux
kernels so the fallback method calculates the geometry based on known info
from the mtd partition. A bug exists in this funcion where it fails to
assume that block0 ECC is the same as the other blocks by default.
--- a/src/mtd.c
+++ b/src/mtd.c
@@ -610,7 +610,7 @@ static int cal_nfc_geometry(struct mtd_d
        /* The two are fixed, please change them when the driver changes. */
        geo->metadata_size_in_bytes = 10;
        geo->gf_len = 13;
-       geo->ecc_chunkn_size_in_bytes = 512;
+       geo->ecc_chunkn_size_in_bytes = geo->ecc_chunk0_size_in_bytes = 512;
 
        if (mtd->oobsize > geo->ecc_chunkn_size_in_bytes) {
                geo->gf_len = 14;
@@ -700,8 +700,9 @@ int parse_nfc_geometry(struct mtd_data *
        unsigned int       value;
 
        if (!plat_config_data->m_u32UseNfcGeo) {
+               /* fsl kernel patch provides bch_geometry via debugfs */
                if (!(node = fopen(dbg_geometry_node_path, "r"))) {
-                       fprintf(stderr, "Cannot open BCH geometry node: \"%s\"",
+                       fprintf(stderr, "Cannot open BCH geometry node: \"%s\"\n",
                                dbg_geometry_node_path);
                        return cal_nfc_geometry(md);
                }