Hello. Please tell me how to disable ecc checking in nand memory? I only found this: https://www.kernel.org/doc/html/v4.14/driver-api/mtdnand.html#ecc-selection-constants but didn't figure out how to disable ecc checking. What i did: diff -Naur linux-5.10.50_orig/drivers/mtd/nand/raw/nand_base.c linux-5.10.50/drivers/mtd/nand/raw/nand_base.c --- linux-5.10.50_orig/drivers/mtd/nand/raw/nand_base.c 2021-07-14 17:56:55.000000000 +0300 +++ linux-5.10.50/drivers/mtd/nand/raw/nand_base.c 2021-08-03 11:20:41.566988751 +0300 @@ -43,6 +43,7 @@ #include <linux/mtd/partitions.h> #include <linux/of.h> #include <linux/gpio/consumer.h> +#include <linux/printk.h> #include "internals.h" @@ -4902,9 +4903,12 @@ int err; err = of_property_read_string(np, "nand-ecc-mode", &pm); ####### at this point the checkout is turned off, as I assume. Since the debug message in the kernel appears exactly in this place + pr_emerg("!!!!!!!!!!!!err is %d, prop is: %s\n", err, pm); if (err) - return NAND_ECC_ENGINE_TYPE_INVALID; + return NAND_ECC_ENGINE_TYPE_NONE; + /*return NAND_ECC_ENGINE_TYPE_INVALID;*/ + printk(KERN_EMERG "!!!!!!!!!prop is: %s\n", pm); for (eng_type = NAND_ECC_NONE; eng_type < ARRAY_SIZE(nand_ecc_legacy_modes); eng_type++) { if (!strcasecmp(pm, nand_ecc_legacy_modes[eng_type])) { but it doesn't work. Please, tell me, how i can disable ecc checking? _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
