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authorPierre Ossman <drzeus@drzeus.cx>2007-08-07 16:11:55 +0400
committerPierre Ossman <drzeus@drzeus.cx>2007-09-23 23:16:01 +0400
commite6f918bf39773d712ab5b457bff54ade3bda0cb1 (patch)
tree614a67fe3defdf113f4c1ae52eb1d5f08774fe63 /drivers/mmc
parentce252edd869ba1fee6a9a6f83e20f349d4c4d669 (diff)
downloadlinux-e6f918bf39773d712ab5b457bff54ade3bda0cb1.tar.xz
mmc: fix sdio timeout calculation
SDIO doesn't have a CSD so it uses different timeout values than SD memory. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/core/core.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 07c03cb677b6..9d29bed820a1 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -232,6 +232,15 @@ void mmc_set_data_timeout(struct mmc_data *data, const struct mmc_card *card)
unsigned int mult;
/*
+ * SDIO cards only define an upper 1 s limit on access.
+ */
+ if (mmc_card_sdio(card)) {
+ data->timeout_ns = 1000000000;
+ data->timeout_clks = 0;
+ return;
+ }
+
+ /*
* SD cards use a 100 multiplier rather than 10
*/
mult = mmc_card_sd(card) ? 100 : 10;