This fixes two issues:
* a descriptor was allocated for every block, while a descriptor can
take 8 blocks
* there was an off-by-one error in the descriptor preparation: there
were two last descriptors, one with length==0
Signed-off-by: Mischa Jonker <mjon...@synopsys.com>
Cc: Alexey Brodkin <abrod...@synopsys.com>
Cc: Jaehoon Chung <jh80.ch...@samsung.com>
Cc: Andy Fleming <aflem...@gmail.com>
---
drivers/mmc/dw_mmc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
index 796a811..9a803a0 100644
--- a/drivers/mmc/dw_mmc.c
+++ b/drivers/mmc/dw_mmc.c
@@ -72,7 +72,7 @@ static void dwmci_prepare_data(struct dwmci_host *host,
dwmci_set_idma_desc(cur_idmac, flags, cnt,
start_addr + (i * PAGE_SIZE));
- if(blk_cnt < 8)
+ if (blk_cnt <= 8)
break;
blk_cnt -= 8;
cur_idmac++;
@@ -111,7 +111,7 @@ static int dwmci_send_cmd(struct mmc *mmc, struct mmc_cmd
*cmd,
{
struct dwmci_host *host = (struct dwmci_host *)mmc->priv;
ALLOC_CACHE_ALIGN_BUFFER(struct dwmci_idmac, cur_idmac,
- data ? data->blocks : 0);
+ data ? DIV_ROUND_UP(data->blocks, 8) : 0);
int flags = 0, i;
unsigned int timeout = 100000;
u32 retry = 10000;
--
1.7.9.5
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