mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 06:57:57 +00:00
28 lines
1.2 KiB
Diff
28 lines
1.2 KiB
Diff
|
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);
|
||
|
|
}
|