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authorSteven Whitehouse <steve@men-an-tol.chygwyn.com>2006-02-23 09:49:43 +0000
committerSteven Whitehouse <swhiteho@redhat.com>2006-02-23 09:49:43 +0000
commitd35462b4bb847b68321c55e95c926aa485aecce2 (patch)
treeb08e18bf6e672633402871ee763102fdb5e63229 /drivers/mmc/mmci.c
parent91ffd7db71e7451f89941a8f428b4daa2a7c1e38 (diff)
parent9e956c2dac9bec602ed1ba29181b45ba6d2b6448 (diff)
Merge branch 'master'
Diffstat (limited to 'drivers/mmc/mmci.c')
-rw-r--r--drivers/mmc/mmci.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/mmc/mmci.c b/drivers/mmc/mmci.c
index 634ef53e85a..9fef29d978b 100644
--- a/drivers/mmc/mmci.c
+++ b/drivers/mmc/mmci.c
@@ -97,6 +97,13 @@ static void mmci_start_data(struct mmci_host *host, struct mmc_data *data)
if (data->flags & MMC_DATA_READ) {
datactrl |= MCI_DPSM_DIRECTION;
irqmask = MCI_RXFIFOHALFFULLMASK;
+
+ /*
+ * If we have less than a FIFOSIZE of bytes to transfer,
+ * trigger a PIO interrupt as soon as any data is available.
+ */
+ if (host->size < MCI_FIFOSIZE)
+ irqmask |= MCI_RXDATAAVLBLMASK;
} else {
/*
* We don't actually need to include "FIFO empty" here
@@ -124,15 +131,10 @@ mmci_start_command(struct mmci_host *host, struct mmc_command *cmd, u32 c)
}
c |= cmd->opcode | MCI_CPSM_ENABLE;
- switch (cmd->flags & MMC_RSP_MASK) {
- case MMC_RSP_NONE:
- default:
- break;
- case MMC_RSP_LONG:
- c |= MCI_CPSM_LONGRSP;
- case MMC_RSP_SHORT:
+ if (cmd->flags & MMC_RSP_PRESENT) {
+ if (cmd->flags & MMC_RSP_136)
+ c |= MCI_CPSM_LONGRSP;
c |= MCI_CPSM_RESPONSE;
- break;
}
if (/*interrupt*/0)
c |= MCI_CPSM_INTERRUPT;