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mmc: sdhci: Define ADMA descriptor structure

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Define the ADMA descriptor structure instead of
using manual offsets and casts.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Adrian Hunter
2014-11-04 12:42:45 +02:00
committed by Ulf Hansson
parent 739d46dcc2
commit 0545230f17
2 changed files with 18 additions and 19 deletions
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7
drivers/mmc/host/sdhci.h
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@@ -272,6 +272,13 @@
/* ADMA2 32-bit DMA alignment */
#define SDHCI_ADMA2_32_ALIGN 4
/* ADMA2 32-bit descriptor */
struct sdhci_adma2_32_desc {
__le16 cmd;
__le16 len;
__le32 addr;
} __packed __aligned(SDHCI_ADMA2_32_ALIGN);
#define ADMA2_TRAN_VALID 0x21
#define ADMA2_NOP_END_VALID 0x3
#define ADMA2_END 0x2