Thread (7 messages) 7 messages, 2 authors, 2018-05-08

Re: [PATCH v2 1/2] arm64: dts: Add msm8998 SoC and MTP board support

From: Bjorn Andersson <hidden>
Date: 2018-05-07 23:35:17
Also in: linux-arm-kernel, linux-arm-msm, lkml

On Mon 07 May 15:59 PDT 2018, Stephen Boyd wrote:
Quoting Bjorn Andersson (2018-04-27 22:42:47)
quoted
diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi
new file mode 100644
index 000000000000..d6665e4f801f
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi
@@ -0,0 +1,340 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2016, The Linux Foundation. All rights reserved. */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/qcom,gcc-msm8998.h>
+
+/ {
+       model = "Qualcomm Technologies, Inc. MSM 8998";
+
+       interrupt-parent = <&intc>;
+
+       qcom,msm-id = <292 0x0>;
No update to dtbtool?
This allows me to concatenate the dtb to the Image.gz and boot the
device. From my scripts I see that I tried to use dtbTool before
reverting to this...

[..]
quoted
+               cpu-map {
+                       cluster0 {
+                               core0 {
+                                       cpu = <&CPU0>;
+                               };
+
+                               core1 {
+                                       cpu = <&CPU1>;
+                               };
+
+                               core2 {
+                                       cpu = <&CPU2>;
+                               };
+
+                               core3 {
+                                       cpu = <&CPU3>;
+                               };
+                       };
+
+                       cluster1 {
+                               core0 {
+                                       cpu = <&CPU4>;
+                               };
+
+                               core1 {
+                                       cpu = <&CPU5>;
+                               };
+
+                               core2 {
+                                       cpu = <&CPU6>;
+                               };
+
+                               core3 {
+                                       cpu = <&CPU7>;
+                               };
+                       };
+               };
I still wonder if this is accurate, but OK.
Afaict it matches downstream, not sure if I'm missing something?

[..]
quoted
+       intc: interrupt-controller@17a00000 {
+               compatible = "arm,gic-v3";
+               reg = <0x17a00000 0x10000>,       /* GICD */
+                     <0x17b00000 0x100000>;      /* GICR * 8 */
+               #interrupt-cells = <3>;
+               #address-cells = <1>;
+               #size-cells = <1>;
+               ranges;
+               interrupt-controller;
+               #redistributor-regions = <1>;
+               redistributor-stride = <0x0 0x20000>;
Is this needed? The redistributor stuff can be left out if there's only
one right?
#redistributor-regions is listed as optional if there's more than 1, the
stride is still needed.

Afaict the stride still needs to be specified, as it's different from
the default 64kb.
quoted
+               interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+       };
+
+       blsp2_uart1: serial@c1b0000 {
Clk name says uart2 though?
That's because it's the wrong clock. Thanks!
quoted
+               compatible = "qcom,msm-uartdm-v1.4", "qcom,msm-uartdm";
+               reg = <0xc1b0000 0x1000>;
+               interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&gcc GCC_BLSP2_UART2_APPS_CLK>,
+                        <&gcc GCC_BLSP2_AHB_CLK>;
+               clock-names = "core", "iface";
+               status = "disabled";
+       };
Regards,
Bjorn
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