Title: [4057] trunk/drivers/mmc/core/mmc.c: bug[#3535]
BF54x sdh only support 1 bit MMC ,so if the inserted card is MMC,
disable 4 bit mode
- Revision
- 4057
- Author
- cliff
- Date
- 2007-12-19 22:20:53 -0600 (Wed, 19 Dec 2007)
Log Message
bug[#3535]BF54x sdh only support 1 bit MMC ,so if the inserted card is MMC,disable 4 bit mode
Diffstat
mmc.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletion(-)
Modified Paths
Diff
Modified: trunk/drivers/mmc/core/mmc.c (4056 => 4057)
--- trunk/drivers/mmc/core/mmc.c 2007-12-20 02:34:17 UTC (rev 4056)
+++ trunk/drivers/mmc/core/mmc.c 2007-12-20 04:20:53 UTC (rev 4057)
@@ -358,6 +358,9 @@
/*
* Activate wide bus (if supported).
*/
+/*Currently,Blackfin 54x only support 1 bit MMC,while support 4 bit SD */
+/*So if card type is MMC don't enable 4 bit mode*/
+#if !defined(CONFIG_BF54x)
if ((card->csd.mmca_vsn >= CSD_SPEC_VER_4) &&
(host->caps & MMC_CAP_4_BIT_DATA)) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
@@ -367,7 +370,7 @@
mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
}
-
+#endif
if (!oldcard)
host->card = card;
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