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mmc: sdhci: Add sdhci_adma_mark_end()

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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>
This commit is contained in:
Adrian Hunter 2014-11-04 12:42:40 +02:00 committed by Ulf Hansson
parent 4efaa6fbe1
commit b5ffa6749c
1 changed files with 8 additions and 1 deletions
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9
drivers/mmc/host/sdhci.c
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@ -468,6 +468,13 @@ static void sdhci_adma_write_desc(u8 *desc, u32 addr, int len, unsigned cmd)
dataddr[0] = cpu_to_le32(addr); 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, static int sdhci_adma_table_pre(struct sdhci_host *host,
struct mmc_data *data) struct mmc_data *data)
{ {
@ -564,7 +571,7 @@ static int sdhci_adma_table_pre(struct sdhci_host *host,
*/ */
if (desc != host->adma_table) { if (desc != host->adma_table) {
desc -= 8; desc -= 8;
desc[0] |= 0x2; /* end */ sdhci_adma_mark_end(desc);
} }
} else { } else {
/* /*