mirror of https://github.com/hak5/openwrt.git
28 lines
1.2 KiB
Diff
28 lines
1.2 KiB
Diff
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The Freescale downstream vendor kernel has a patch that exports the bch
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flash geometry via a debugfs file. This is not available in mainline linux
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kernels so the fallback method calculates the geometry based on known info
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from the mtd partition. A bug exists in this funcion where it fails to
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assume that block0 ECC is the same as the other blocks by default.
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--- a/src/mtd.c
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+++ b/src/mtd.c
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@@ -610,7 +610,7 @@ static int cal_nfc_geometry(struct mtd_d
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/* The two are fixed, please change them when the driver changes. */
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geo->metadata_size_in_bytes = 10;
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geo->gf_len = 13;
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- geo->ecc_chunkn_size_in_bytes = 512;
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+ geo->ecc_chunkn_size_in_bytes = geo->ecc_chunk0_size_in_bytes = 512;
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if (mtd->oobsize > geo->ecc_chunkn_size_in_bytes) {
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geo->gf_len = 14;
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@@ -700,8 +700,9 @@ int parse_nfc_geometry(struct mtd_data *
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unsigned int value;
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if (!plat_config_data->m_u32UseNfcGeo) {
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+ /* fsl kernel patch provides bch_geometry via debugfs */
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if (!(node = fopen(dbg_geometry_node_path, "r"))) {
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- fprintf(stderr, "Cannot open BCH geometry node: \"%s\"",
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+ fprintf(stderr, "Cannot open BCH geometry node: \"%s\"\n",
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dbg_geometry_node_path);
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return cal_nfc_geometry(md);
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}
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