diff options
Diffstat (limited to 'recipes-bsp/imx-kobs/imx-kobs/fix-cal_nfc_geometry.patch')
| -rw-r--r-- | recipes-bsp/imx-kobs/imx-kobs/fix-cal_nfc_geometry.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/recipes-bsp/imx-kobs/imx-kobs/fix-cal_nfc_geometry.patch b/recipes-bsp/imx-kobs/imx-kobs/fix-cal_nfc_geometry.patch new file mode 100644 index 0000000..dddb49a --- /dev/null +++ b/recipes-bsp/imx-kobs/imx-kobs/fix-cal_nfc_geometry.patch @@ -0,0 +1,31 @@ +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. + +Upstream-Status: Pending + +--- 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); + } + |