diff options
author | Andrei Warkentin <andreiw@motorola.com> | 2011-05-25 10:42:50 -0400 |
---|---|---|
committer | Chris Ball <cjb@laptop.org> | 2011-05-25 16:52:26 -0400 |
commit | 4f3d3e9b50931a3ec70f324d53fb7437e2a39388 (patch) | |
tree | 26018537aaea287e7aa6377e2305a4222699b8d7 | |
parent | 8edf63710bd43e62d59bfe017df542fa0713bbb3 (diff) |
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>
-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) | |||
2494 | host->flags |= SDHCI_AUTO_CMD12; | 2494 | host->flags |= SDHCI_AUTO_CMD12; |
2495 | 2495 | ||
2496 | /* Auto-CMD23 stuff only works in ADMA or PIO. */ | 2496 | /* Auto-CMD23 stuff only works in ADMA or PIO. */ |
2497 | if ((host->version == SDHCI_SPEC_300) && | 2497 | if ((host->version >= SDHCI_SPEC_300) && |
2498 | ((host->flags & SDHCI_USE_ADMA) || | 2498 | ((host->flags & SDHCI_USE_ADMA) || |
2499 | !(host->flags & SDHCI_REQ_USE_DMA))) { | 2499 | !(host->flags & SDHCI_USE_SDMA))) { |
2500 | host->flags |= SDHCI_AUTO_CMD23; | 2500 | host->flags |= SDHCI_AUTO_CMD23; |
2501 | DBG("%s: Auto-CMD23 available\n", mmc_hostname(mmc)); | 2501 | DBG("%s: Auto-CMD23 available\n", mmc_hostname(mmc)); |
2502 | } else { | 2502 | } else { |