linux-kernel - [PATCH v3 2/5] mmc: sdhci-esdhc: Add SDHCI_QUIRK_32BIT_DMA

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Message-Id: <1496135651-90007-2-git-send-email-benoit@wsystem.com>
Date:   Tue, 30 May 2017 11:14:08 +0200
From:   Benoît Thébaudeau <benoit@...stem.com>
To:     linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org
Cc:     Ulf Hansson <ulf.hansson@...aro.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Fabio Estevam <fabio.estevam@....com>,
        Wolfram Sang <wsa@...-dreams.de>,
        Benoît Thébaudeau <benoit@...stem.com>
Subject: [PATCH v3 2/5] mmc: sdhci-esdhc: Add SDHCI_QUIRK_32BIT_DMA_ADDR

The eSDHC can only DMA from 32-bit-aligned addresses.

This fixes the following test cases of mmc_test:
  11:	Badly aligned write
  12:	Badly aligned read
  13:	Badly aligned multi-block write
  14:	Badly aligned multi-block read

Signed-off-by: Benoît Thébaudeau <benoit@...stem.com>
Acked-by: Adrian Hunter <adrian.hunter@...el.com>
Reviewed-by: Fabio Estevam <fabio.estevam@....com>
---
Changes v1 -> v2: none.
Changes v2 -> v3: none.
---
 drivers/mmc/host/sdhci-esdhc.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h
index c4bbd74..e7893f2 100644
--- a/drivers/mmc/host/sdhci-esdhc.h
+++ b/drivers/mmc/host/sdhci-esdhc.h
@@ -19,6 +19,7 @@
  */
 
 #define ESDHC_DEFAULT_QUIRKS	(SDHCI_QUIRK_FORCE_BLK_SZ_2048 | \
+				SDHCI_QUIRK_32BIT_DMA_ADDR | \
 				SDHCI_QUIRK_NO_BUSY_IRQ | \
 				SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | \
 				SDHCI_QUIRK_PIO_NEEDS_DELAY | \
-- 
2.7.4