linux-kernel - [PATCH v1 3/3] ARM: dts: tegra30: Add External Memory Controller node

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Message-Id: <20190411230221.31362-4-digetx@gmail.com>
Date:   Fri, 12 Apr 2019 02:02:21 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Peter De Schrijver <pdeschrijver@...dia.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Joseph Lo <josephl@...dia.com>
Cc:     devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v1 3/3] ARM: dts: tegra30: Add External Memory Controller node

Add Add External Memory Controller node to the device-tree.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 arch/arm/boot/dts/tegra30.dtsi     | 11 +++++++++++
 drivers/memory/tegra/tegra30-emc.c |  3 ++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index e074258d4518..92c4aeafab29 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -732,6 +732,17 @@
 		#reset-cells = <1>;
 	};
 
+	memory-controller@...0f400 {
+		compatible = "nvidia,tegra30-emc";
+		reg = <0x7000f400 0x400>;
+		interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&tegra_car TEGRA30_CLK_EMC>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		nvidia,memory-controller = <&mc>;
+	};
+
 	fuse@...0f800 {
 		compatible = "nvidia,tegra30-efuse";
 		reg = <0x7000f800 0x400>;
diff --git a/drivers/memory/tegra/tegra30-emc.c b/drivers/memory/tegra/tegra30-emc.c
index 38ebdb076ccd..defdb38bde54 100644
--- a/drivers/memory/tegra/tegra30-emc.c
+++ b/drivers/memory/tegra/tegra30-emc.c
@@ -980,7 +980,8 @@ static long emc_round_rate(unsigned long rate,
 	}
 
 	if (!timing) {
-		dev_err(emc->dev, "no timing for rate %lu\n", rate);
+		dev_err(emc->dev, "no timing for rate %lu min %lu max %lu\n",
+			rate, min_rate, max_rate);
 		return -EINVAL;
 	}
 
-- 
2.21.0