From 329db2f586c4125fc0255f1e111dae7602e9845b Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Fri, 2 Oct 2015 14:34:24 +0200 Subject: mci: core: Increase clock for SD highspeed mode Putting a SD card into highspeed mode doesn't help much when we still clock the card with 25MHz. Increase the clock speed to 50MHz for high speed cards. Signed-off-by: Sascha Hauer --- drivers/mci/mci-core.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/mci/mci-core.c') diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c index 6d5a4bfc6e..90001153d7 100644 --- a/drivers/mci/mci-core.c +++ b/drivers/mci/mci-core.c @@ -652,6 +652,9 @@ retry_scr: if ((__be32_to_cpu(switch_status[4]) & 0x0f000000) == 0x01000000) mci->card_caps |= MMC_CAP_SD_HIGHSPEED; + if (mci_caps(mci) & MMC_CAP_SD_HIGHSPEED) + mci->tran_speed = 50000000; + return 0; } -- cgit v1.2.3