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mmc: block: Use R1 responses for stop cmds for read requests 

While using open ended transmission and thus ending the transfer by
sending a stop command, we shall use R1B only for writes and R1 shall
be used for reads. Previously R1B were used in both cases.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
This commit is contained in:
Ulf Hansson 2014-01-14 21:24:21 +01:00 committed by Chris Ball
parent cb962e04b0
commit bcc3e1726d
1 changed files with 6 additions and 1 deletions
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7
drivers/mmc/card/block.c
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@ -1334,7 +1334,6 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
brq->data.blksz = 512; brq->data.blksz = 512;
brq->stop.opcode = MMC_STOP_TRANSMISSION; brq->stop.opcode = MMC_STOP_TRANSMISSION;
brq->stop.arg = 0; brq->stop.arg = 0;
brq->stop.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC;
brq->data.blocks = blk_rq_sectors(req); brq->data.blocks = blk_rq_sectors(req);
/* /*
@ -1377,9 +1376,15 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
if (rq_data_dir(req) == READ) { if (rq_data_dir(req) == READ) {
brq->cmd.opcode = readcmd; brq->cmd.opcode = readcmd;
brq->data.flags |= MMC_DATA_READ; brq->data.flags |= MMC_DATA_READ;
if (brq->mrq.stop)
brq->stop.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 |
MMC_CMD_AC;
} else { } else {
brq->cmd.opcode = writecmd; brq->cmd.opcode = writecmd;
brq->data.flags |= MMC_DATA_WRITE; brq->data.flags |= MMC_DATA_WRITE;
if (brq->mrq.stop)
brq->stop.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B |
MMC_CMD_AC;
} }
if (do_rel_wr) if (do_rel_wr)