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| author | Zhangfei Gao <zhangfei.gao@linaro.org> | 2015-04-30 22:16:28 +0800 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-05-08 08:55:14 +0200 |
| commit | 4b2447248325ac7b1654d362c0e9f050f79e0ffe (patch) | |
| tree | fa8fd72b96ef88e68ba81fe31b3bdafb022f7777 | |
| parent | 4e93b9a6abc0d028daf3c8a00cb77b679d8a4df4 (diff) | |
| download | linux-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.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 38b29265cc7c76..69952b20563c43 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); |