[PATCH v10 13/15] memory: tegra: Ensure timing control debug features are disabled
From: Dmitry Osipenko <digetx@gmail.com>
Date: 2019-08-11 21:01:56
Also in:
linux-clk, linux-tegra, lkml
Subsystem:
memory controller drivers, the rest · Maintainers:
Krzysztof Kozlowski, Linus Torvalds
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 <redacted> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- drivers/memory/tegra/mc.c | 3 +++ drivers/memory/tegra/mc.h | 2 ++ 2 files changed, 5 insertions(+)
diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c
index 43819e8df95c..1bad7f238881 100644
--- a/drivers/memory/tegra/mc.c
+++ b/drivers/memory/tegra/mc.c@@ -657,6 +657,9 @@ 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)
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2.22.0