[PATCH v5 3/4] ARM: dts: tegra20: Add device tree node to describe IRAM

Dmitry Osipenko digetx at gmail.com
Tue Dec 12 00:26:09 UTC 2017


From: Vladimir Zapolskiy <vz at mleia.com>

All Tegra20 SoCs contain 256KiB IRAM, which is used to store
resume code and by a video decoder engine.

Signed-off-by: Vladimir Zapolskiy <vz at mleia.com>
Signed-off-by: Dmitry Osipenko <digetx at gmail.com>
---
 arch/arm/boot/dts/tegra20.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 914f59166a99..36909df653c3 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -10,6 +10,14 @@
 	compatible = "nvidia,tegra20";
 	interrupt-parent = <&lic>;
 
+	iram at 40000000 {
+		compatible = "mmio-sram";
+		reg = <0x40000000 0x40000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0x40000000 0x40000>;
+	};
+
 	host1x at 50000000 {
 		compatible = "nvidia,tegra20-host1x", "simple-bus";
 		reg = <0x50000000 0x00024000>;
-- 
2.15.1



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