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 mjonker@synopsys.com Cc: Alexey Brodkin abrodkin@synopsys.com Cc: Jaehoon Chung jh80.chung@samsung.com Cc: Andy Fleming afleming@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;