diff options
| author | Andrei Warkentin | 2011-05-25 16:42:50 +0200 |
|---|---|---|
| committer | Chris Ball | 2011-05-25 22:52:26 +0200 |
| commit | 4f3d3e9b50931a3ec70f324d53fb7437e2a39388 (patch) | |
| tree | 26018537aaea287e7aa6377e2305a4222699b8d7 /drivers/mmc/host/sdhci.c | |
| parent | mmc: sdhci: Auto-CMD23 support. (diff) | |
| download | kernel-qcow2-linux-4f3d3e9b50931a3ec70f324d53fb7437e2a39388.tar.gz kernel-qcow2-linux-4f3d3e9b50931a3ec70f324d53fb7437e2a39388.tar.xz kernel-qcow2-linux-4f3d3e9b50931a3ec70f324d53fb7437e2a39388.zip | |
mmc: sdhci: Auto-CMD23 fixes.
Fixes bugs in Auto-CMD23 feature enable decision. Auto-CMD23
should be enabled if host is >= v3, and SDMA is not in use.
USE_ADMA | USE_SDMA | Auto-CMD23
---------+----------+-----------
0 | 0 | 1
---------+----------+-----------
0 | 1 | 0
---------+----------+-----------
1 | 0 | 1
---------+----------+-----------
1 | 1 | 1
Signed-off-by: Andrei Warkentin <andreiw@motorola.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/sdhci.c')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index f845fd6a64ae..58d5436ff649 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2494,9 +2494,9 @@ int sdhci_add_host(struct sdhci_host *host) host->flags |= SDHCI_AUTO_CMD12; /* Auto-CMD23 stuff only works in ADMA or PIO. */ - if ((host->version == SDHCI_SPEC_300) && + if ((host->version >= SDHCI_SPEC_300) && ((host->flags & SDHCI_USE_ADMA) || - !(host->flags & SDHCI_REQ_USE_DMA))) { + !(host->flags & SDHCI_USE_SDMA))) { host->flags |= SDHCI_AUTO_CMD23; DBG("%s: Auto-CMD23 available\n", mmc_hostname(mmc)); } else { |