linux-kernel - [PATCH] sdhci: rtsx: fix 64 BIT DMA quirks

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Date:	Tue, 7 Apr 2015 11:32:01 +0800
From:	<micky_ching@...lsil.com.cn>
To:	<chris@...ntf.net>, <ulf.hansson@...aro.org>,
	<sameo@...ux.intel.com>
CC:	<gregkh@...uxfoundation.org>, <dan.carpenter@...cle.com>,
	<devel@...uxdriverproject.org>, <linux-kernel@...r.kernel.org>,
	<linux-mmc@...r.kernel.org>, <rogerable@...ltek.com>,
	<wei_wang@...lsil.com.cn>, Micky Ching <micky_ching@...lsil.com.cn>
Subject: [PATCH] sdhci: rtsx: fix 64 BIT DMA quirks

From: Micky Ching <micky_ching@...lsil.com.cn>

rts5250 chip failed handle 64 bit ADMA for address below 4G.
Add 64 BIT quirks to disable this feature.

Signed-off-by: Micky Ching <micky_ching@...lsil.com.cn>
---
 drivers/mmc/host/sdhci-pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 0342775..ae8e450 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -650,6 +650,7 @@ static int rtsx_probe_slot(struct sdhci_pci_slot *slot)
 
 static const struct sdhci_pci_fixes sdhci_rtsx = {
 	.quirks2	= SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
+			SDHCI_QUIRK2_BROKEN_64_BIT_DMA |
 			SDHCI_QUIRK2_BROKEN_DDR50,
 	.probe_slot	= rtsx_probe_slot,
 };
-- 
1.9.1

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