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Date: Thu, 14 Nov 2019 00:20:28 +0100
From: Andreas Färber <afaerber@...e.de>
To: James Tai <james.tai@...ltek.com>
Cc: Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
'DTML' <devicetree@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-realtek-soc@...ts.infradead.org"
<linux-realtek-soc@...ts.infradead.org>
Subject: Re: [PATCH v3 2/2] arm64: dts: realtek: Add RTD1619 SoC and Realtek
Mjolnir EVB
Hi James,
Am 12.11.19 um 16:45 schrieb James Tai:
> Add Device Trees for Realtek RTD1619 SoC family, RTD1619 SoC and
> Realtek Mjolnir EVB.
>
> Signed-off-by: James Tai <james.tai@...ltek.com>
> ---
Lacking the requested changelog.
> arch/arm64/boot/dts/realtek/Makefile | 2 +
> .../boot/dts/realtek/rtd1619-mjolnir.dts | 40 +++++
> arch/arm64/boot/dts/realtek/rtd1619.dtsi | 12 ++
> arch/arm64/boot/dts/realtek/rtd16xx.dtsi | 163 ++++++++++++++++++
> 4 files changed, 217 insertions(+)
> create mode 100644 arch/arm64/boot/dts/realtek/rtd1619-mjolnir.dts
> create mode 100644 arch/arm64/boot/dts/realtek/rtd1619.dtsi
> create mode 100644 arch/arm64/boot/dts/realtek/rtd16xx.dtsi
Somehow the last hunk (rtd16xx.dtsi) didn't apply with git-am or patch
-p1, not sure why. I have manually copied the file into place and fixed
up some more nits below:
>
> diff --git a/arch/arm64/boot/dts/realtek/Makefile b/arch/arm64/boot/dts/realtek/Makefile
> index 555638ada721..fb5f05978ecc 100644
> --- a/arch/arm64/boot/dts/realtek/Makefile
> +++ b/arch/arm64/boot/dts/realtek/Makefile
> @@ -7,3 +7,5 @@ dtb-$(CONFIG_ARCH_REALTEK) += rtd1295-probox2-ava.dtb
> dtb-$(CONFIG_ARCH_REALTEK) += rtd1295-zidoo-x9s.dtb
>
> dtb-$(CONFIG_ARCH_REALTEK) += rtd1296-ds418.dtb
> +
> +dtb-$(CONFIG_ARCH_REALTEK) += rtd1619-mjolnir.dtb
> diff --git a/arch/arm64/boot/dts/realtek/rtd1619-mjolnir.dts b/arch/arm64/boot/dts/realtek/rtd1619-mjolnir.dts
> new file mode 100644
> index 000000000000..6ab791af3896
> --- /dev/null
> +++ b/arch/arm64/boot/dts/realtek/rtd1619-mjolnir.dts
> @@ -0,0 +1,40 @@
> +// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
> +/*
> + * Copyright (c) 2019 Realtek Semiconductor Corp.
> + */
> +
> +/dts-v1/;
> +
> +#include "rtd1619.dtsi"
> +
> +/ {
> + compatible = "realtek,rtd1619", "realtek,mjolnir";
Order not fixed from v2. This is a schema violation and logically wrong.
> + model= "Realtek Mjolnir EVB";
Space missing before =. Missed that in v2.
> +
> + memory@0 {
> + device_type = "memory";
> + reg = <0x0 0x80000000>;
> + };
> +
> + chosen {
> + stdout-path = "serial0:115200n8";
> + };
> +
> + aliases {
> + serial0 = &uart0; /* The UART0 is debug console */
> + serial1 = &uart1; /* The UART1 is on M.2 slot */
> + serial2 = &uart2; /* The UART2 is on GPIO connector */
> + };
> +};
> +
> +&uart0 {
> + status = "okay";
> +};
> +
> +&uart1 {
> + status = "disabled";
> +};
> +
> +&uart2 {
> + status = "disabled";
> +};
The comments were intended to go above each node, not after the aliases.
I've taken the liberty to annotate them further with their PCB label.
> diff --git a/arch/arm64/boot/dts/realtek/rtd1619.dtsi b/arch/arm64/boot/dts/realtek/rtd1619.dtsi
> new file mode 100644
> index 000000000000..e52bf708b04e
> --- /dev/null
> +++ b/arch/arm64/boot/dts/realtek/rtd1619.dtsi
> @@ -0,0 +1,12 @@
> +// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
> +/*
> + * Realtek RTD1619 SoC
> + *
> + * Copyright (c) 2019 Realtek Semiconductor Corp.
> + */
> +
> +#include "rtd16xx.dtsi"
> +
> +/ {
> + compatible = "realtek,rtd1619";
> +};
> diff --git a/arch/arm64/boot/dts/realtek/rtd16xx.dtsi b/arch/arm64/boot/dts/realtek/rtd16xx.dtsi
> new file mode 100644
> index 000000000000..d9b572a870f5
> --- /dev/null
> +++ b/arch/arm64/boot/dts/realtek/rtd16xx.dtsi
> @@ -0,0 +1,163 @@
> +// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
> +/*
> + * Realtek RTD16xx SoC family
> + *
> + * Copyright (c) 2019 Realtek Semiconductor Corp.
> + */
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +/{
Space missing. Missed that in v2.
> + interrupt-parent = <&gic>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + cpu0: cpu@0 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a55";
> + reg = <0x0>;
> + enable-method = "psci";
> + next-level-cache = <&l2>;
> + };
> +
> + cpu1: cpu@100 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a55";
> + reg = <0x100>;
> + enable-method = "psci";
> + next-level-cache = <&l3>;
> + };
> +
> + cpu2: cpu@200 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a55";
> + reg = <0x200>;
> + enable-method = "psci";
> + next-level-cache = <&l3>;
> + };
> +
> + cpu3: cpu@300 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a55";
> + reg = <0x300>;
> + enable-method = "psci";
> + next-level-cache = <&l3>;
> + };
> +
> + cpu4: cpu@400 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a55";
> + reg = <0x400>;
> + enable-method = "psci";
> + next-level-cache = <&l3>;
> + };
> +
> + cpu5: cpu@500 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a55";
> + reg = <0x500>;
> + enable-method = "psci";
> + next-level-cache = <&l3>;
> + };
> +
> + l2: l2-cache {
> + compatible = "cache";
> + next-level-cache = <&l3>;
> +
> + };
> +
> + l3: l3-cache {
> + compatible = "cache";
> + };
> + };
> +
> + timer {
> + compatible = "arm,armv8-timer";
> + interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
> + <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
> + <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
> + <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
> + };
> +
> + arm_pmu: pmu {
> + compatible = "arm,armv8-pmuv3";
> + interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
> + };
> +
> + psci {
> + compatible = "arm,psci-1.0";
> + method = "smc";
> + };
> +
> + osc27M: osc {
> + compatible = "fixed-clock";
> + clock-frequency = <27000000>;
> + clock-output-names = "osc27M";
> + #clock-cells = <0>;
> + };
> +
> + soc@...00000 {
If the node has a unit address, it also needs a reg property with that
value. So let's drop the unit address.
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0x98000000 0x98000000 0x68000000>;
> +
> + rbus: r-bus@...00000 {
> + compatible = "simple-bus";
> + reg = <0x98000000 0x200000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0x0 0x98000000 0x200000>;
> +
> + uart0: serial0@...0 {
> + compatible = "snps,dw-apb-uart";
> + reg = <0x7800 0x400>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
> + clock-frequency = <27000000>;
> + status = "disabled";
> + };
> +
> + uart1: serial1@...00 {
> + compatible = "snps,dw-apb-uart";
> + reg = <0x1b200 0x400>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
> + clock-frequency = <432000000>;
> + status = "disabled";
> + };
> +
> + uart2: serial2@...00 {
> + compatible = "snps,dw-apb-uart";
> + reg = <0x1b400 0x400>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
> + clock-frequency = <432000000>;
> + status = "disabled";
> + };
> + };
> +
> + gic: interrupt-controller@...00000 {
> + compatible = "arm,gic-v3";
> + reg = <0xff100000 0x10000>,
> + <0xff140000 0xc0000>;
> + interrupt-controller;
> + #interrupt-cells = <3>;
> + interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
> + };
> + };
> +};
> +
> +&arm_pmu {
> + interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>,
> + <&cpu3>, <&cpu4>, <&cpu5>;
> +};
Now that they're in the same file, this can just go into the node.
Queuing on my rtd1295-next branch (before RTD1395), with changes:
diff --git a/arch/arm64/boot/dts/realtek/rtd1619-mjolnir.dts
b/arch/arm64/boot/dts/realtek/rtd1619-mjolnir.dts
index 6ab791af3896..44dd67e04335 100644
--- a/arch/arm64/boot/dts/realtek/rtd1619-mjolnir.dts
+++ b/arch/arm64/boot/dts/realtek/rtd1619-mjolnir.dts
@@ -8,8 +8,8 @@
#include "rtd1619.dtsi"
/ {
- compatible = "realtek,rtd1619", "realtek,mjolnir";
- model= "Realtek Mjolnir EVB";
+ compatible = "realtek,mjolnir", "realtek,rtd1619";
+ model = "Realtek Mjolnir EVB";
memory@0 {
device_type = "memory";
@@ -21,20 +21,23 @@
};
aliases {
- serial0 = &uart0; /* The UART0 is debug console */
- serial1 = &uart1; /* The UART1 is on M.2 slot */
- serial2 = &uart2; /* The UART2 is on GPIO connector */
+ serial0 = &uart0;
+ serial1 = &uart1;
+ serial2 = &uart2;
};
};
+/* debug console (J1) */
&uart0 {
status = "okay";
};
+/* M.2 slot (CON4) */
&uart1 {
status = "disabled";
};
+/* GPIO connector (T1) */
&uart2 {
status = "disabled";
};
diff --git a/arch/arm64/boot/dts/realtek/rtd16xx.dtsi
b/arch/arm64/boot/dts/real
tek/rtd16xx.dtsi
index 4422fe9c5a68..f1e3c088a014 100644
--- a/arch/arm64/boot/dts/realtek/rtd16xx.dtsi
+++ b/arch/arm64/boot/dts/realtek/rtd16xx.dtsi
@@ -8,7 +8,7 @@
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
-/{
+/ {
interrupt-parent = <&gic>;
#address-cells = <1>;
#size-cells = <1>;
@@ -87,6 +87,8 @@
arm_pmu: pmu {
compatible = "arm,armv8-pmuv3";
interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>,
+ <&cpu3>, <&cpu4>, <&cpu5>;
};
psci {
@@ -101,7 +103,7 @@
#clock-cells = <0>;
};
- soc@...00000 {
+ soc {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
@@ -149,14 +151,9 @@
compatible = "arm,gic-v3";
reg = <0xff100000 0x10000>,
<0xff140000 0xc0000>;
+ interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
interrupt-controller;
#interrupt-cells = <3>;
- interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
};
};
};
-
-&arm_pmu {
- interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>,
- <&cpu3>, <&cpu4>, <&cpu5>;
-};
Waiting on Rob for the underlying binding (and for v5.5-rc1 tag).
Thanks,
Andreas
--
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Felix Imendörffer
HRB 36809 (AG Nürnberg)
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