[PATCH v4 08/10] memory: tegra: Ensure timing control debug features are disabled
From: Dmitry Osipenko <digetx@gmail.com>
Date: 2019-06-16 23:36:33
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. 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 eaebe371625c..4c1492c653e1 100644
--- a/drivers/memory/tegra/mc.c
+++ b/drivers/memory/tegra/mc.c@@ -660,6 +660,9 @@ 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 0720a1d2023e..abc565b42225 100644
--- a/drivers/memory/tegra/mc.h
+++ b/drivers/memory/tegra/mc.h@@ -33,6 +33,8 @@ #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)
--
2.22.0