mmc: sdhci: Parameterize ADMA sizes and alignment

In preparation for 64-bit ADMA, parameterize ADMA sizes
and alignment.  64-bit ADMA has a larger descriptor
because it contains a 64-bit address instead of a 32-bit
address.  Also data must be 8-byte aligned instead
of 4-byte aligned.  Consequently, sdhci_host members
are added for descriptor, table, and buffer sizes
and alignment.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index 933dbbb50742..2a72e9510833 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -158,9 +158,16 @@ struct sdhci_host {
         void *adma_table;       /* ADMA descriptor table */
         void *align_buffer;     /* Bounce buffer */
 
+        size_t adma_table_sz;   /* ADMA descriptor table size */
+        size_t align_buffer_sz; /* Bounce buffer size */
+
         dma_addr_t adma_addr;   /* Mapped ADMA descr. table */
         dma_addr_t align_addr;  /* Mapped bounce buffer */
 
+        unsigned int desc_sz;   /* ADMA descriptor size */
+        unsigned int align_sz;  /* ADMA alignment */
+        unsigned int align_mask;        /* ADMA alignment mask */
+
         struct tasklet_struct finish_tasklet;   /* Tasklet structures */
 
         struct timer_list timer;        /* Timer for timeouts */