mmc: Adding AUTO_BKOPS_EN bit set for Auto BKOPS support
Adding dedicated flag for AUTO_BKOPS in card->ext_csd structure. Read AUTO_BKOPS bit value from the device EXT_CSD and set to the card->ext_csd structure. In mmc_decode_ext_csd() add a print message in case the AUTO_BKOPS is enabled Signed-off-by: Uri Yanai <uri.yanai@sandisk.com> Signed-off-by: Alex Lemberg <alex.lemberg@sandisk.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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@ -546,6 +546,12 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd)
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if (card->ext_csd.man_bkops_en)
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pr_debug("%s: MAN_BKOPS_EN bit is set\n",
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mmc_hostname(card->host));
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card->ext_csd.auto_bkops_en =
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(ext_csd[EXT_CSD_BKOPS_EN] &
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EXT_CSD_AUTO_BKOPS_MASK);
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if (card->ext_csd.auto_bkops_en)
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pr_debug("%s: AUTO_BKOPS_EN bit is set\n",
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mmc_hostname(card->host));
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}
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/* check whether the eMMC card supports HPI */
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@ -83,6 +83,7 @@ struct mmc_ext_csd {
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unsigned int hpi_cmd; /* cmd used as HPI */
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bool bkops; /* background support bit */
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bool man_bkops_en; /* manual bkops enable bit */
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bool auto_bkops_en; /* auto bkops enable bit */
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unsigned int data_sector_size; /* 512 bytes or 4KB */
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unsigned int data_tag_unit_size; /* DATA TAG UNIT size */
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unsigned int boot_ro_lock; /* ro lock support */
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@ -407,6 +407,7 @@ static inline bool mmc_op_multi(u32 opcode)
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* BKOPS modes
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*/
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#define EXT_CSD_MANUAL_BKOPS_MASK 0x01
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#define EXT_CSD_AUTO_BKOPS_MASK 0x02
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/*
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* Command Queue
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