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mtd: nand_base: Only use GET/SET FEATURES command on chips that support them.
Spansion's S34MLx chips support ONFI but not the GET/SET FEATURES calls. Signed-off-by: David Mosberger <dmosberger@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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64ddba4d8a
commit
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2 changed files with 9 additions and 2 deletions
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@ -2709,7 +2709,9 @@ static int nand_onfi_set_features(struct mtd_info *mtd, struct nand_chip *chip,
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{
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int status;
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if (!chip->onfi_version)
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if (!chip->onfi_version ||
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!(le16_to_cpu(chip->onfi_params.opt_cmd)
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& ONFI_OPT_CMD_SET_GET_FEATURES))
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return -EINVAL;
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chip->cmdfunc(mtd, NAND_CMD_SET_FEATURES, addr, -1);
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@ -2730,7 +2732,9 @@ static int nand_onfi_set_features(struct mtd_info *mtd, struct nand_chip *chip,
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static int nand_onfi_get_features(struct mtd_info *mtd, struct nand_chip *chip,
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int addr, uint8_t *subfeature_param)
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{
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if (!chip->onfi_version)
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if (!chip->onfi_version ||
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!(le16_to_cpu(chip->onfi_params.opt_cmd)
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& ONFI_OPT_CMD_SET_GET_FEATURES))
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return -EINVAL;
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/* clear the sub feature parameters */
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@ -217,6 +217,9 @@ struct nand_chip;
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/* ONFI subfeature parameters length */
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#define ONFI_SUBFEATURE_PARAM_LEN 4
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/* ONFI optional commands SET/GET FEATURES supported? */
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#define ONFI_OPT_CMD_SET_GET_FEATURES (1 << 2)
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struct nand_onfi_params {
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/* rev info and features block */
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/* 'O' 'N' 'F' 'I' */
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