From 5e4548922009870a38bcf1d887317676d4e08f54 Mon Sep 17 00:00:00 2001 From: Damir Franusic Date: Thu, 21 Nov 2019 16:29:02 +0100 Subject: [PATCH] ARM: dts: qcom: Add nodes for SMP boot in IPQ40xx Add missing nodes and properties to enable SMP support on IPQ40xx devices. Booting without "saw_l2" node: [ 0.001400] CPU: Testing write buffer coherency: ok [ 0.001856] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.060163] Setting up static identity map for 0x80300000 - 0x80300060 [ 0.080140] rcu: Hierarchical SRCU implementation. [ 0.120258] smp: Bringing up secondary CPUs ... [ 0.200540] CPU1: failed to boot: -19 [ 0.280689] CPU2: failed to boot: -19 [ 0.360874] CPU3: failed to boot: -19 [ 0.360966] smp: Brought up 1 node, 1 CPU [ 0.360979] SMP: Total of 1 processors activated (96.00 BogoMIPS). [ 0.360988] CPU: All CPU(s) started in SVC mode. Then, booting with "saw_l2" node present (this patch applied): [ 0.001450] CPU: Testing write buffer coherency: ok [ 0.001904] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.060161] Setting up static identity map for 0x80300000 - 0x80300060 [ 0.080137] rcu: Hierarchical SRCU implementation. [ 0.120252] smp: Bringing up secondary CPUs ... [ 0.200958] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 [ 0.281091] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002 [ 0.361264] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003 [ 0.361430] smp: Brought up 1 node, 4 CPUs [ 0.361460] SMP: Total of 4 processors activated (384.00 BogoMIPS). [ 0.361469] CPU: All CPU(s) started in SVC mode. Signed-off-by: Damir Franusic Cc: Luka Perkov Cc: Robert Marko Cc: Andy Gross Cc: Rob Herring Cc: linux-arm-msm@vger.kernel.org Link: https://lore.kernel.org/r/20191121152902.21394-1-damir.franusic@gmail.com Signed-off-by: Bjorn Andersson --- arch/arm/boot/dts/qcom-ipq4019.dtsi | 7 +++++++ 1 file changed, 7 insertions(+) --- a/arch/arm/boot/dts/qcom-ipq4019.dtsi +++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi @@ -102,6 +102,7 @@ L2: l2-cache { compatible = "cache"; cache-level = <2>; + qcom,saw = <&saw_l2>; }; }; @@ -353,6 +354,12 @@ regulator; }; + saw_l2: regulator@b012000 { + compatible = "qcom,saw2"; + reg = <0xb012000 0x1000>; + regulator; + }; + blsp1_uart1: serial@78af000 { compatible = "qcom,msm-uartdm-v1.4", "qcom,msm-uartdm"; reg = <0x78af000 0x200>;