diff options
Diffstat (limited to 'target/linux/lantiq/patches-5.4/0019-MTD-nand-support-new-dt-bindings.patch')
| -rw-r--r-- | target/linux/lantiq/patches-5.4/0019-MTD-nand-support-new-dt-bindings.patch | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-5.4/0019-MTD-nand-support-new-dt-bindings.patch b/target/linux/lantiq/patches-5.4/0019-MTD-nand-support-new-dt-bindings.patch new file mode 100644 index 0000000000..b4aa5b9093 --- /dev/null +++ b/target/linux/lantiq/patches-5.4/0019-MTD-nand-support-new-dt-bindings.patch @@ -0,0 +1,28 @@ +The nand-ecc-mode DT binding is depracated but the new bindings are +not supported by kernel 5.4. Based on a fix in the kernel to not +overwrite the DT ECC settings, the DT needs to be updated and moves +to the new DT binding. +Since the DT is shared between kernel 5.4 and 5.10, this patch is +an interim solution to allow to use the new DT bindings in kernel 5.4. +It should be removed when moving away from kernel 5.4. +--- a/drivers/mtd/nand/raw/nand_base.c ++++ b/drivers/mtd/nand/raw/nand_base.c +@@ -4851,10 +4851,17 @@ static int of_get_nand_ecc_mode(struct d + { + const char *pm; + int err, i; ++ struct device_node *eng_np; + + err = of_property_read_string(np, "nand-ecc-mode", &pm); +- if (err < 0) ++ if (err < 0) { ++ if (of_property_read_bool(np, "nand-use-soft-ecc-engine")) ++ return NAND_ECC_SOFT; ++ eng_np = of_parse_phandle(np, "nand-ecc-engine", 0); ++ if (eng_np && (eng_np == np)) ++ return NAND_ECC_ON_DIE; + return err; ++ } + + for (i = 0; i < ARRAY_SIZE(nand_ecc_modes); i++) + if (!strcasecmp(pm, nand_ecc_modes[i])) |