From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Juergen Beisert <jbe@pengutronix.de>
Subject: [PATCH 2/6] mci: do not limit clock to card capabilities
Date: Fri, 31 May 2013 09:13:59 +0200 [thread overview]
Message-ID: <1369984443-8790-2-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1369984443-8790-1-git-send-email-s.hauer@pengutronix.de>
No need to limit the clock to the cards capabilities since the values
passed to mci_set_clock are based on the cards capabilities. This
enables MMC high speed cards to operate at higher speeds since on
this cards the csd field only holds the non highspeed maximum clock.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
drivers/mci/mci-core.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c
index 283df2f..895108f 100644
--- a/drivers/mci/mci-core.c
+++ b/drivers/mci/mci-core.c
@@ -664,10 +664,6 @@ static void mci_set_clock(struct mci *mci, unsigned clock)
if (clock < host->f_min)
clock = host->f_min;
- /* check against the limit at the card's side */
- if (mci->tran_speed != 0 && clock > mci->tran_speed)
- clock = mci->tran_speed;
-
host->clock = clock; /* the new target frequency */
mci_set_ios(mci);
}
--
1.8.2.rc2
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next prev parent reply other threads:[~2013-05-31 7:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-31 7:13 [PATCH 1/6] mci: print current clock in info Sascha Hauer
2013-05-31 7:13 ` Sascha Hauer [this message]
2013-05-31 7:30 ` [PATCH 2/6] mci: do not limit clock to card capabilities Juergen Beisert
2013-05-31 7:14 ` [PATCH 3/6] mci: rename trans_speed field to csd_max_dtr Sascha Hauer
2013-05-31 7:35 ` Juergen Beisert
2013-05-31 7:14 ` [PATCH 4/6] mci: Use csd_max_dtr when appropriate Sascha Hauer
2013-05-31 7:37 ` Juergen Beisert
2013-05-31 7:14 ` [PATCH 5/6] mci: Add devicetree helper function Sascha Hauer
2013-05-31 7:14 ` [PATCH 6/6] mci: i.MX esdhc: get additional parameters from devicetree Sascha Hauer
2013-05-31 7:33 ` [PATCH 1/6] mci: print current clock in info Juergen Beisert
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