Thread (1 message) 1 message, 1 author, 2020-01-24
STALE2389d REVIEWED: 4 (4M)

1 review trailer.

[PATCH AUTOSEL 5.4 016/107] ARM: dts: imx7ulp: fix reg of cpu node

From: Sasha Levin <sashal@kernel.org>
Date: 2020-01-24 14:38:42
Also in: linux-arm-kernel, lkml, stable
Subsystem: the rest · Maintainer: Linus Torvalds

From: Peng Fan <peng.fan@nxp.com>

[ Upstream commit b8ab62ff7199fac8ce27fa4a149929034fabe7f8 ]

According to arm cpus binding doc,
"
      On 32-bit ARM v7 or later systems this property is
        required and matches the CPU MPIDR[23:0] register
        bits.

        Bits [23:0] in the reg cell must be set to
        bits [23:0] in MPIDR.

        All other bits in the reg cell must be set to 0.
"

In i.MX7ULP, the MPIDR[23:0] is 0xf00, not 0, so fix it.
Otherwise there will be warning:
"DT missing boot CPU MPIDR[23:0], fall back to default cpu_logical_map"

Fixes: 20434dc92c05 ("ARM: dts: imx: add common imx7ulp dtsi support")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/imx7ulp.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/imx7ulp.dtsi b/arch/arm/boot/dts/imx7ulp.dtsi
index 6859a3a83750c..3dac6898cdc57 100644
--- a/arch/arm/boot/dts/imx7ulp.dtsi
+++ b/arch/arm/boot/dts/imx7ulp.dtsi
@@ -37,10 +37,10 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		cpu0: cpu@0 {
+		cpu0: cpu@f00 {
 			compatible = "arm,cortex-a7";
 			device_type = "cpu";
-			reg = <0>;
+			reg = <0xf00>;
 		};
 	};
 
-- 
2.20.1
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