linux-kernel - Re: OLPC XO-1 sdhci regression

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Date:	Fri, 20 Feb 2009 22:03:03 -0500
From:	Andres Salomon <dilinger@...ued.net>
To:	drzeus-sdhci@...eus.cx
Cc:	sdhci-devel@...t.drzeus.cx, linux-kernel@...r.kernel.org,
	cjb@...top.org
Subject: Re: OLPC XO-1 sdhci regression

On Fri, 20 Feb 2009 12:43:43 -0500
Andres Salomon <dilinger@...ued.net> wrote:

> Hi Pierre,
> 
> With the current Linus git tree, the sdhci driver fails to find the
> partition table on cards during bootup on OLPC XO-1 machines.  This
> makes booting off of SD impossible.  The errors go something like
> this:
> 
[...]


A quirk proposed by Anton fixes the issue.  The attached patch adds the
quirk for the Marvell CAFE controller.



Subject: [PATCH] SDHCI: Add NO_BUSY_IRQ quirk for Marvell CAFE host chip

As described here: http://lkml.org/lkml/2009/2/20/265

The CAFE chip is broken due to commit e809517f6fa5803a5a1cd56026f0e2190fc13d5c.
Anton added a quirk here: http://lkml.org/lkml/2009/2/20/279 that fixes
CAFE's problem.  This adds the quirk for CAFE.

Obviously, this depends upon Anton's patch.

Signed-off-by: Andres Salomon <dilinger@...ian.org>
---
 drivers/mmc/host/sdhci-pci.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 8cff5f5..406da9a 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -107,6 +107,7 @@ static const struct sdhci_pci_fixes sdhci_ene_714 = {
 
 static const struct sdhci_pci_fixes sdhci_cafe = {
 	.quirks		= SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER |
+			  SDHCI_QUIRK_NO_BUSY_IRQ |
 			  SDHCI_QUIRK_BROKEN_TIMEOUT_VAL,
 };
 
-- 
1.5.6.5



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