The ELM module is used for GPMC NAND accesses for detecting
and correcting errors during reads due to NAND bitflips errors.
4-, 8-, and 16-bit error-correction levels are supported using
the BCH (Bose-ChaudhurI-Hocquenghem) algorithm.
Signed-off-by: Roger Quadros <rogerq@xxxxxxxxxx>
---
arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 9 +++++++++
arch/arm64/boot/dts/ti/k3-am642-evm.dts | 4 ++++
arch/arm64/boot/dts/ti/k3-am642-sk.dts | 4 ++++
3 files changed, 17 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index 0059de0aeedf..c1caa7c7c6eb 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -1327,4 +1327,13 @@
gpio-controller;
#gpio-cells = <2>;
};
+
+ elm0: ecc@25010000 {
+ compatible = "ti,am64-elm";
+ reg = <0x00 0x25010000 0x00 0x2000>;
+ interrupts = <GIC_SPI 132 IRQ_TYPE_LEVEL_HIGH>;
+ power-domains = <&k3_pds 54 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&k3_clks 54 0>;
+ clock-names = "fck";
+ };
};
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index 30647fc3eec2..abc0fe61b6b8 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -680,3 +680,7 @@
&gpmc0 {
status = "disabled";
};
+
+&elm0 {
+ status = "disabled";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index bd9b36b16787..bec1edfeef37 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -597,3 +597,7 @@
&gpmc0 {
status = "disabled";
};
+
+&elm0 {
+ status = "disabled";
+};
--
2.17.1
