diff options
Diffstat (limited to 'target/linux/ipq40xx/patches-5.4/0003-v5.6-ARM-dts-qcom-Add-nodes-for-SMP-boot-in-IPQ40xx.patch')
| -rw-r--r-- | target/linux/ipq40xx/patches-5.4/0003-v5.6-ARM-dts-qcom-Add-nodes-for-SMP-boot-in-IPQ40xx.patch | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/target/linux/ipq40xx/patches-5.4/0003-v5.6-ARM-dts-qcom-Add-nodes-for-SMP-boot-in-IPQ40xx.patch b/target/linux/ipq40xx/patches-5.4/0003-v5.6-ARM-dts-qcom-Add-nodes-for-SMP-boot-in-IPQ40xx.patch new file mode 100644 index 0000000000..3a4127febf --- /dev/null +++ b/target/linux/ipq40xx/patches-5.4/0003-v5.6-ARM-dts-qcom-Add-nodes-for-SMP-boot-in-IPQ40xx.patch @@ -0,0 +1,71 @@ +From 5e4548922009870a38bcf1d887317676d4e08f54 Mon Sep 17 00:00:00 2001 +From: Damir Franusic <damir.franusic@sartura.hr> +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 <damir.franusic@sartura.hr> +Cc: Luka Perkov <luka.perkov@sartura.hr> +Cc: Robert Marko <robert.marko@sartura.hr> +Cc: Andy Gross <agross@kernel.org> +Cc: Rob Herring <robh+dt@kernel.org> +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 <bjorn.andersson@linaro.org> +--- + 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>; |