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[V2,06/15] mmc: sdhci: Add sdhci_adma_mark_end()

Message ID 1415097769-19032-7-git-send-email-adrian.hunter@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Adrian Hunter Nov. 4, 2014, 10:42 a.m. UTC 
In preparation for 64-bit ADMA, separate out code
that touches the ADMA descriptor by adding
sdhci_adma_mark_end().

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
 drivers/mmc/host/sdhci.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index f2062b0..19f31ea 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -468,6 +468,13 @@  static void sdhci_adma_write_desc(u8 *desc, u32 addr, int len, unsigned cmd)
 	dataddr[0] = cpu_to_le32(addr);
 }
 
+static void sdhci_adma_mark_end(void *desc)
+{
+	u8 *dma_desc = desc;
+
+	dma_desc[0] |= 0x2; /* end */
+}
+
 static int sdhci_adma_table_pre(struct sdhci_host *host,
 	struct mmc_data *data)
 {
@@ -564,7 +571,7 @@  static int sdhci_adma_table_pre(struct sdhci_host *host,
 		*/
 		if (desc != host->adma_table) {
 			desc -= 8;
-			desc[0] |= 0x2; /* end */
+			sdhci_adma_mark_end(desc);
 		}
 	} else {
 		/*