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authorZhangfei Gao <zhangfei.gao@linaro.org>2015-04-30 22:16:28 +0800
committerUlf Hansson <ulf.hansson@linaro.org>2015-05-08 08:55:14 +0200
commit4b2447248325ac7b1654d362c0e9f050f79e0ffe (patch)
treefa8fd72b96ef88e68ba81fe31b3bdafb022f7777
parent4e93b9a6abc0d028daf3c8a00cb77b679d8a4df4 (diff)
downloadlinux-stericsson-4b2447248325ac7b1654d362c0e9f050f79e0ffe.tar.gz
mmc: dw_mmc: init desc in dw_mci_idmac_init
Set 0 to des1 in 32bit case. Otherwise the random value of des1 will be used in dw_mci_translate_sglist: IDMAC_SET_BUFFER1_SIZE(desc, length) Signed-off-by: Fei Wang <w.f@huawei.com> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
-rw-r--r--drivers/mmc/host/dw_mmc.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 38b29265cc7c..69952b20563c 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -589,9 +589,11 @@ static int dw_mci_idmac_init(struct dw_mci *host)
host->ring_size = PAGE_SIZE / sizeof(struct idmac_desc);
/* Forward link the descriptor list */
- for (i = 0, p = host->sg_cpu; i < host->ring_size - 1; i++, p++)
+ for (i = 0, p = host->sg_cpu; i < host->ring_size - 1; i++, p++) {
p->des3 = cpu_to_le32(host->sg_dma +
(sizeof(struct idmac_desc) * (i + 1)));
+ p->des1 = 0;
+ }
/* Set the last descriptor as the end-of-ring descriptor */
p->des3 = cpu_to_le32(host->sg_dma);