diff options
| author | Dmitry Osipenko <digetx@gmail.com> | 2019-08-11 23:00:41 +0200 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2019-11-11 14:55:27 +0100 |
| commit | 77b7182ff18dd5a83d938ab42772db5cb82c75b8 (patch) | |
| tree | 84d19c1cb768c754b27c22394e6da63c19b00bad /drivers | |
| parent | memory: tegra: Introduce Tegra30 EMC driver (diff) | |
| download | linux-77b7182ff18dd5a83d938ab42772db5cb82c75b8.tar.xz linux-77b7182ff18dd5a83d938ab42772db5cb82c75b8.zip | |
memory: tegra: Ensure timing control debug features are disabled
Timing control debug features should be disabled at a boot time, but you
never now and hence it's better to disable them explicitly because some of
those features are crucial for the driver to do a proper thing.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/memory/tegra/mc.c | 3 | ||||
| -rw-r--r-- | drivers/memory/tegra/mc.h | 2 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c index 41ee420275f1..a1f9a0506048 100644 --- a/drivers/memory/tegra/mc.c +++ b/drivers/memory/tegra/mc.c @@ -667,6 +667,9 @@ static int tegra_mc_probe(struct platform_device *pdev) } else #endif { + /* ensure that debug features are disabled */ + mc_writel(mc, 0x00000000, MC_TIMING_CONTROL_DBG); + err = tegra_mc_setup_latency_allowance(mc); if (err < 0) { dev_err(&pdev->dev, diff --git a/drivers/memory/tegra/mc.h b/drivers/memory/tegra/mc.h index 410efc4d7e7b..cd52628c2b96 100644 --- a/drivers/memory/tegra/mc.h +++ b/drivers/memory/tegra/mc.h @@ -30,6 +30,8 @@ #define MC_EMEM_ARB_OVERRIDE 0xe8 #define MC_EMEM_ARB_OVERRIDE_EACK_MASK 0x3 +#define MC_TIMING_CONTROL_DBG 0xf8 + #define MC_TIMING_CONTROL 0xfc #define MC_TIMING_UPDATE BIT(0) |