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Set MMC_DATA_MULTI flag when doing multi-block transfers

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Lower layers (MMC / SDHCI controller drivers) may make certain decisions
based on the presence of this flag. The fact that sdhci.c doesn't
look at this flag is another problem that should be fixed separately.

Found when adding MMCCAM support to AllWinner MMC controller driver
where the presence of this flag actually matters.

Approved by:	imp (mentor)
Differential Revision:	https://reviews.freebsd.org/D15888
This commit is contained in:
Ilya Bakulin 2018-06-19 11:23:48 +00:00
parent c6f76759ca
commit 3f1cfdb122
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=335365
1 changed files with 1 additions and 0 deletions
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1
sys/cam/mmc/mmc_da.c
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@ -1778,6 +1778,7 @@ sddastart(struct cam_periph *periph, union ccb *start_ccb)
mmcio->cmd.data->flags = (bp->bio_cmd == BIO_READ ? MMC_DATA_READ : MMC_DATA_WRITE);
/* Direct h/w to issue CMD12 upon completion */
if (count > 1) {
mmcio->cmd.data->flags |= MMC_DATA_MULTI;
mmcio->stop.opcode = MMC_STOP_TRANSMISSION;
mmcio->stop.flags = MMC_RSP_R1B | MMC_CMD_AC;
mmcio->stop.arg = 0;