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authorJerome Brunet <jbrunet@baylibre.com>2018-12-06 16:18:27 +0100
committerUlf Hansson <ulf.hansson@linaro.org>2018-12-17 08:26:24 +0100
commitc5e1766d3ac0abe4dde14e7ee620f6f3ac2a0bb9 (patch)
treebcc778912bd25edf62adef5cee0d4d6b17066b61 /drivers/mmc
parent83076d2268c72d123f3d1eaf186a9f56ec1b943a (diff)
downloadlwn-c5e1766d3ac0abe4dde14e7ee620f6f3ac2a0bb9.tar.gz
lwn-c5e1766d3ac0abe4dde14e7ee620f6f3ac2a0bb9.zip
mmc: meson-gx: align default phase on soc vendor tree
Align the default Core and Tx phase with the SoC vendor tree. Even if the Tx phase is different from what the documentation recommends, it seems to provide better results. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/meson-gx-mmc.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
index 5cc31e434ca1..837bed0b8c01 100644
--- a/drivers/mmc/host/meson-gx-mmc.c
+++ b/drivers/mmc/host/meson-gx-mmc.c
@@ -634,14 +634,8 @@ static int meson_mmc_clk_init(struct meson_host *host)
if (ret)
return ret;
- /*
- * Set phases : These values are mostly the datasheet recommended ones
- * except for the Tx phase. Datasheet recommends 180 but some cards
- * fail at initialisation with it. 270 works just fine, it fixes these
- * initialisation issues and enable eMMC DDR52 mode.
- */
clk_set_phase(host->mmc_clk, 180);
- clk_set_phase(host->tx_clk, 270);
+ clk_set_phase(host->tx_clk, 0);
clk_set_phase(host->rx_clk, 0);
return clk_prepare_enable(host->mmc_clk);