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SubjectRe: [PATCH v2 5/5] arm64: dts: Add Unisoc's SC9863A SoC support
On Fri, 15 Nov 2019 at 05:05, Rob Herring <robh@kernel.org> wrote:
>
> On Mon, Nov 11, 2019 at 05:02:30PM +0800, Chunyan Zhang wrote:
> >
> > Add basic DT to support Unisoc's SC9863A, with this patch,
> > the board sp9863a-1h10 can run into console.
> >
> > Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
> > ---
> > arch/arm64/boot/dts/sprd/Makefile | 3 +-
> > arch/arm64/boot/dts/sprd/sc9863a.dtsi | 536 ++++++++++++++++++++++
> > arch/arm64/boot/dts/sprd/sharkl3.dtsi | 188 ++++++++
> > arch/arm64/boot/dts/sprd/sp9863a-1h10.dts | 40 ++
> > 4 files changed, 766 insertions(+), 1 deletion(-)
> > create mode 100644 arch/arm64/boot/dts/sprd/sc9863a.dtsi
> > create mode 100644 arch/arm64/boot/dts/sprd/sharkl3.dtsi
> > create mode 100644 arch/arm64/boot/dts/sprd/sp9863a-1h10.dts
> >
> > diff --git a/arch/arm64/boot/dts/sprd/Makefile b/arch/arm64/boot/dts/sprd/Makefile
> > index 2bdc23804f40..f4f1f5148cc2 100644
> > --- a/arch/arm64/boot/dts/sprd/Makefile
> > +++ b/arch/arm64/boot/dts/sprd/Makefile
> > @@ -1,3 +1,4 @@
> > # SPDX-License-Identifier: GPL-2.0
> > dtb-$(CONFIG_ARCH_SPRD) += sc9836-openphone.dtb \
> > - sp9860g-1h10.dtb
> > + sp9860g-1h10.dtb \
> > + sp9863a-1h10.dtb
> > diff --git a/arch/arm64/boot/dts/sprd/sc9863a.dtsi b/arch/arm64/boot/dts/sprd/sc9863a.dtsi
> > new file mode 100644
> > index 000000000000..578d71a932d9
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/sprd/sc9863a.dtsi
> > @@ -0,0 +1,536 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * Unisoc SC9863A SoC DTS file
> > + *
> > + * Copyright (C) 2019, Unisoc Inc.
> > + */
> > +
> > +#include <dt-bindings/interrupt-controller/arm-gic.h>
> > +#include "sharkl3.dtsi"
> > +
> > +/ {
> > + cpus {
> > + #address-cells = <2>;
> > + #size-cells = <0>;
> > +
> > + 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>;
> > + };
> > + };
> > + };
> > +
> > + CPU0: cpu@0 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a55";
> > + reg = <0x0 0x0>;
> > + enable-method = "psci";
> > + cpu-idle-states = <&CORE_PD>;
> > + };
> > +
> > + CPU1: cpu@100 {
>
> Your numbering seems odd. This follows the MPIDR reg? Normally a cluster
> would share the same number in one of the bytes.

We're using A55, and the spec says that bit[15:8] identifies
individual cores within the local DynamIQ™ cluster

Also, we only support one cluster.

>
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a55";
> > + reg = <0x0 0x100>;
> > + enable-method = "psci";
> > + cpu-idle-states = <&CORE_PD>;
> > + };
> > +
> > + CPU2: cpu@200 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a55";
> > + reg = <0x0 0x200>;
> > + enable-method = "psci";
> > + cpu-idle-states = <&CORE_PD>;
> > + };
> > +
> > + CPU3: cpu@300 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a55";
> > + reg = <0x0 0x300>;
> > + enable-method = "psci";
> > + cpu-idle-states = <&CORE_PD>;
> > + };
> > +
> > + CPU4: cpu@400 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a55";
> > + reg = <0x0 0x400>;
> > + enable-method = "psci";
> > + cpu-idle-states = <&CORE_PD>;
> > + };
> > +
> > + CPU5: cpu@500 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a55";
> > + reg = <0x0 0x500>;
> > + enable-method = "psci";
> > + cpu-idle-states = <&CORE_PD>;
> > + };
> > +
> > + CPU6: cpu@600 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a55";
> > + reg = <0x0 0x600>;
> > + enable-method = "psci";
> > + cpu-idle-states = <&CORE_PD>;
> > + };
> > +
> > + CPU7: cpu@700 {
> > + device_type = "cpu";
> > + compatible = "arm,cortex-a55";
> > + reg = <0x0 0x700>;
> > + enable-method = "psci";
> > + cpu-idle-states = <&CORE_PD>;
> > + };
> > + };
> > +
> > + idle-states {
> > + entry-method = "arm,psci";
> > + CORE_PD: core_pd {
> > + compatible = "arm,idle-state";
> > + entry-latency-us = <4000>;
> > + exit-latency-us = <4000>;
> > + min-residency-us = <10000>;
> > + local-timer-stop;
> > + arm,psci-suspend-param = <0x00010000>;
> > + };
> > + };
> > +
> > + gic: interrupt-controller@14000000 {
>
> Should go under a bus node.

I didn't get your point, can you give me more details about this?

>
> > + compatible = "arm,gic-v3";
> > + #interrupt-cells = <3>;
> > + #address-cells = <2>;
> > + #size-cells = <2>;
> > + ranges;
> > + redistributor-stride = <0x0 0x20000>; /* 128KB stride */
> > + #redistributor-regions = <1>;
> > + interrupt-controller;
> > + reg = <0x0 0x14000000 0 0x20000>, /* GICD */
> > + <0x0 0x14040000 0 0x100000>; /* GICR */
> > + interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
> > +
> > + v2m_0: v2m@0 {
> > + compatible = "arm,gic-v2m-frame";
>
> This is a GICv2 thing...

Will remove it.

>
> > + msi-controller;
>
> Goes in the parent. Please run your dts file with
> 'make W=12 dtbs_check' and fix the warnings.

Ok (sorry for missing to do this check)

>
> > + reg = <0 0 0 0x1000>;
> > + };
> > + };
> > +
> > + psci {
> > + compatible = "arm,psci-0.2";
> > + method = "smc";
> > + };
> > +
> > + timer {
> > + compatible = "arm,armv8-timer";
> > + interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>, /* Physical Secure PPI */
> > + <GIC_PPI 14 IRQ_TYPE_LEVEL_HIGH>, /* Physical Non-Secure PPI */
> > + <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>, /* Virtual PPI */
> > + <GIC_PPI 10 IRQ_TYPE_LEVEL_HIGH>; /* Hipervisor PPI */
> > + };
> > +
> > + pmu {
> > + compatible = "arm,armv8-pmuv3";
> > + interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 149 IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 150 IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 151 IRQ_TYPE_LEVEL_HIGH>;
> > + };
> > +
> > + soc {
> > + funnel@10001000 {
> > + compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
> > + reg = <0 0x10001000 0 0x1000>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + funnel_soc_out_port: endpoint {
> > + remote-endpoint = <&etb_in>;
> > + };
> > + };
> > + };
> > +
> > + in-ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + port@0 {
> > + reg = <0>;
> > + funnel_soc_in_port: endpoint {
> > + remote-endpoint =
> > + <&funnel_ca55_out_port>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + etb@10003000 {
> > + compatible = "arm,coresight-tmc", "arm,primecell";
> > + reg = <0 0x10003000 0 0x1000>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + in-ports {
> > + port {
> > + etb_in: endpoint {
> > + remote-endpoint =
> > + <&funnel_soc_out_port>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + funnel@12001000 {
> > + compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
> > + reg = <0 0x12001000 0 0x1000>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + funnel_little_out_port: endpoint {
> > + remote-endpoint =
> > + <&etf_little_in>;
> > + };
> > + };
> > + };
> > +
> > + in-ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + port@0 {
> > + reg = <0>;
> > + funnel_little_in_port0: endpoint {
> > + remote-endpoint = <&etm0_out>;
> > + };
> > + };
> > +
> > + port@1 {
> > + reg = <1>;
> > + funnel_little_in_port1: endpoint {
> > + remote-endpoint = <&etm1_out>;
> > + };
> > + };
> > +
> > + port@2 {
> > + reg = <2>;
> > + funnel_little_in_port2: endpoint {
> > + remote-endpoint = <&etm2_out>;
> > + };
> > + };
> > +
> > + port@3 {
> > + reg = <3>;
> > + funnel_little_in_port3: endpoint {
> > + remote-endpoint = <&etm3_out>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + etf@12002000 {
> > + compatible = "arm,coresight-tmc", "arm,primecell";
> > + reg = <0 0x12002000 0 0x1000>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + etf_little_out: endpoint {
> > + remote-endpoint =
> > + <&funnel_ca55_in_port0>;
> > + };
> > + };
> > + };
> > +
> > + in-port {
> > + port {
> > + etf_little_in: endpoint {
> > + remote-endpoint =
> > + <&funnel_little_out_port>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + etf@12003000 {
> > + compatible = "arm,coresight-tmc", "arm,primecell";
> > + reg = <0 0x12003000 0 0x1000>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + etf_big_out: endpoint {
> > + remote-endpoint =
> > + <&funnel_ca55_in_port1>;
> > + };
> > + };
> > + };
> > +
> > + in-ports {
> > + port {
> > + etf_big_in: endpoint {
> > + remote-endpoint =
> > + <&funnel_big_out_port>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + funnel@12004000 {
> > + compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
> > + reg = <0 0x12004000 0 0x1000>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + funnel_ca55_out_port: endpoint {
> > + remote-endpoint =
> > + <&funnel_soc_in_port>;
> > + };
> > + };
> > + };
> > +
> > + in-ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + port@0 {
> > + reg = <0>;
> > + funnel_ca55_in_port0: endpoint {
> > + remote-endpoint =
> > + <&etf_little_out>;
> > + };
> > + };
> > +
> > + port@1 {
> > + reg = <1>;
> > + funnel_ca55_in_port1: endpoint {
> > + remote-endpoint =
> > + <&etf_big_out>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + funnel@12005000 {
> > + compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
> > + reg = <0 0x12005000 0 0x1000>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + funnel_big_out_port: endpoint {
> > + remote-endpoint =
> > + <&etf_big_in>;
> > + };
> > + };
> > + };
> > +
> > + in-ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + port@0 {
> > + reg = <0>;
> > + funnel_big_in_port0: endpoint {
> > + remote-endpoint = <&etm4_out>;
> > + };
> > + };
> > +
> > + port@1 {
> > + reg = <1>;
> > + funnel_big_in_port1: endpoint {
> > + remote-endpoint = <&etm5_out>;
> > + };
> > + };
> > +
> > + port@2 {
> > + reg = <2>;
> > + funnel_big_in_port2: endpoint {
> > + remote-endpoint = <&etm6_out>;
> > + };
> > + };
> > +
> > + port@3 {
> > + reg = <3>;
> > + funnel_big_in_port3: endpoint {
> > + remote-endpoint = <&etm7_out>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + etm@13040000 {
> > + compatible = "arm,coresight-etm4x", "arm,primecell";
> > + reg = <0 0x13040000 0 0x1000>;
> > + cpu = <&CPU0>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + etm0_out: endpoint {
> > + remote-endpoint =
> > + <&funnel_little_in_port0>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + etm@13140000 {
> > + compatible = "arm,coresight-etm4x", "arm,primecell";
> > + reg = <0 0x13140000 0 0x1000>;
> > + cpu = <&CPU1>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + etm1_out: endpoint {
> > + remote-endpoint =
> > + <&funnel_little_in_port1>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + etm@13240000 {
> > + compatible = "arm,coresight-etm4x", "arm,primecell";
> > + reg = <0 0x13240000 0 0x1000>;
> > + cpu = <&CPU2>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + etm2_out: endpoint {
> > + remote-endpoint =
> > + <&funnel_little_in_port2>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + etm@13340000 {
> > + compatible = "arm,coresight-etm4x", "arm,primecell";
> > + reg = <0 0x13340000 0 0x1000>;
> > + cpu = <&CPU3>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + etm3_out: endpoint {
> > + remote-endpoint =
> > + <&funnel_little_in_port3>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + etm@13440000 {
> > + compatible = "arm,coresight-etm4x", "arm,primecell";
> > + reg = <0 0x13440000 0 0x1000>;
> > + cpu = <&CPU4>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + etm4_out: endpoint {
> > + remote-endpoint =
> > + <&funnel_big_in_port0>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + etm@13540000 {
> > + compatible = "arm,coresight-etm4x", "arm,primecell";
> > + reg = <0 0x13540000 0 0x1000>;
> > + cpu = <&CPU5>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + etm5_out: endpoint {
> > + remote-endpoint =
> > + <&funnel_big_in_port1>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + etm@13640000 {
> > + compatible = "arm,coresight-etm4x", "arm,primecell";
> > + reg = <0 0x13640000 0 0x1000>;
> > + cpu = <&CPU6>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + etm6_out: endpoint {
> > + remote-endpoint =
> > + <&funnel_big_in_port2>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + etm@13740000 {
> > + compatible = "arm,coresight-etm4x", "arm,primecell";
> > + reg = <0 0x13740000 0 0x1000>;
> > + cpu = <&CPU7>;
> > + clocks = <&ext_26m>;
> > + clock-names = "apb_pclk";
> > +
> > + out-ports {
> > + port {
> > + etm7_out: endpoint {
> > + remote-endpoint =
> > + <&funnel_big_in_port3>;
> > + };
> > + };
> > + };
> > + };
> > + };
> > +};
> > diff --git a/arch/arm64/boot/dts/sprd/sharkl3.dtsi b/arch/arm64/boot/dts/sprd/sharkl3.dtsi
> > new file mode 100644
> > index 000000000000..3ef233f70dc4
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/sprd/sharkl3.dtsi
> > @@ -0,0 +1,188 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * Unisoc Sharkl3 platform DTS file
> > + *
> > + * Copyright (C) 2019, Unisoc Inc.
> > + */
> > +
> > +/ {
> > + interrupt-parent = <&gic>;
> > + #address-cells = <2>;
> > + #size-cells = <2>;
> > +
> > + soc: soc {
> > + compatible = "simple-bus";
> > + #address-cells = <2>;
> > + #size-cells = <2>;
> > + ranges;
> > +
> > + ap_ahb_regs: syscon@20e00000 {
> > + compatible = "syscon";
> > + reg = <0 0x20e00000 0 0x10000>;
> > + };
> > +
> > + pub_apb_regs: syscon@300e0000 {
> > + compatible = "syscon";
>
> "syscon" should also have a specific compatible. What are all these
> blocks? Looks like placeholders. If so, just drop them.

The purppse is to make these addresses mapped for many peripharls
whose some controller registers are in the same address base with one
of syscons listed here.
Under those peripharl device nodes there's a property refer to syscon, like
https://elixir.bootlin.com/linux/v5.4-rc7/source/arch/arm64/boot/dts/sprd/sc9860.dtsi#L227

In this way, devices can use the virtual address base which were
mapped by syscon driver.

You can also refer to the commit massage in the patch-set:
https://lkml.org/lkml/2019/11/14/368

>
> > + reg = <0 0x300e0000 0 0x10000>;
> > + };
> > +
> > + pub_ahb_regs: syscon@300f0000 {
> > + compatible = "syscon";
> > + reg = <0 0x300f0000 0 0x10000>;
> > + };
> > +
> > + aon_intc_regs: syscon@40200000 {
> > + compatible = "syscon";
> > + reg = <0 0x40200000 0 0x10000>;
> > + };
> > +
> > + pmu_regs: syscon@402b0000 {
> > + compatible = "syscon";
> > + reg = <0 0x402b0000 0 0x10000>;
> > + };
> > +
> > + aon_apb_regs: syscon@402e0000 {
> > + compatible = "syscon";
> > + reg = <0 0x402e0000 0 0x10000>;
> > + };
> > +
> > + anlg_phy_g1_regs: syscon@40350000 {
> > + compatible = "syscon";
> > + reg = <0 0x40350000 0 0x3000>;
> > + };
> > +
> > + anlg_phy_g2_regs: syscon@40353000 {
> > + compatible = "syscon";
> > + reg = <0 0x40353000 0 0x6000>;
> > + };
> > +
> > + anlg_phy_g4_regs: syscon@40359000 {
> > + compatible = "syscon";
> > + reg = <0 0x40359000 0 0x3000>;
> > + };
> > +
> > + anlg_phy_g5_regs: syscon@4035c000 {
> > + compatible = "syscon";
> > + reg = <0 0x4035c000 0 0x3000>;
> > + };
> > +
> > + anlg_phy_g7_regs: syscon@40363000 {
> > + compatible = "syscon";
> > + reg = <0 0x40363000 0 0x3000>;
> > + };
> > +
> > + anlg_wrap_wcn_regs: syscon@40366000 {
> > + compatible = "syscon";
> > + reg = <0 0x40366000 0 0x3000>;
> > + };
> > +
> > + wcn_regs: syscon@403a0000 {
> > + compatible = "syscon";
> > + reg = <0 0x403a0000 0 0x10000>;
> > + };
> > +
> > + ap_intc0_regs: syscon@40500000 {
> > + compatible = "syscon";
> > + reg = <0 0x40500000 0 0x10000>;
> > + };
> > +
> > + ap_intc1_regs: syscon@40510000 {
> > + compatible = "syscon";
> > + reg = <0 0x40510000 0 0x10000>;
> > + };
> > +
> > + ap_intc2_regs: syscon@40520000 {
> > + compatible = "syscon";
> > + reg = <0 0x40520000 0 0x10000>;
> > + };
> > +
> > + ap_intc3_regs: syscon@40530000 {
> > + compatible = "syscon";
> > + reg = <0 0x40530000 0 0x10000>;
> > + };
> > +
> > + ap_intc4_regs: syscon@40540000 {
> > + compatible = "syscon";
> > + reg = <0 0x40540000 0 0x10000>;
> > + };
> > +
> > + ap_intc5_regs: syscon@40550000 {
> > + compatible = "syscon";
> > + reg = <0 0x40550000 0 0x10000>;
> > + };
> > +
> > + mm_ahb_regs: syscon@60800000 {
> > + compatible = "syscon";
> > + reg = <0 0x60800000 0 0x10000>;
> > + };
> > +
> > + mm_vsp_ahb_regs: syscon@62000000 {
> > + compatible = "syscon";
> > + reg = <0 0x62000000 0 0x10000>;
> > + };
> > +
> > + ap_apb_regs: syscon@71300000 {
> > + compatible = "syscon";
> > + reg = <0 0x71300000 0 0x40000>;
> > + };
> > +
> > + ap-apb {
>
> apb@70000000

Got it.

>
> > + compatible = "simple-bus";
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + ranges = <0 0x0 0x70000000 0x10000000>;
> > +
> > + uart0: serial@0 {
> > + compatible = "sprd,sc9863a-uart",
> > + "sprd,sc9836-uart";
> > + reg = <0x0 0x100>;
> > + interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&ext_26m>;
> > + status = "disabled";
> > + };
> > +
> > + uart1: serial@100000 {
> > + compatible = "sprd,sc9863a-uart",
> > + "sprd,sc9836-uart";
> > + reg = <0x100000 0x100>;
> > + interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&ext_26m>;
> > + status = "disabled";
> > + };
> > +
> > + uart2: serial@200000 {
> > + compatible = "sprd,sc9863a-uart",
> > + "sprd,sc9836-uart";
> > + reg = <0x200000 0x100>;
> > + interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&ext_26m>;
> > + status = "disabled";
> > + };
> > +
> > + uart3: serial@300000 {
> > + compatible = "sprd,sc9863a-uart",
> > + "sprd,sc9836-uart";
> > + reg = <0x300000 0x100>;
> > + interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&ext_26m>;
> > + status = "disabled";
> > + };
> > +
> > + uart4: serial@400000 {
> > + compatible = "sprd,sc9863a-uart",
> > + "sprd,sc9836-uart";
> > + reg = <0x400000 0x100>;
> > + interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&ext_26m>;
> > + status = "disabled";
> > + };
> > + };
> > + };
> > +
> > + ext_26m: ext-26m {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <26000000>;
> > + clock-output-names = "ext-26m";
> > + };
> > +};
> > diff --git a/arch/arm64/boot/dts/sprd/sp9863a-1h10.dts b/arch/arm64/boot/dts/sprd/sp9863a-1h10.dts
> > new file mode 100644
> > index 000000000000..b6fbb5ca37e1
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/sprd/sp9863a-1h10.dts
> > @@ -0,0 +1,40 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * Unisoc SP9863A-1h10 boards DTS file
> > + *
> > + * Copyright (C) 2019, Unisoc Inc.
> > + */
> > +
> > +/dts-v1/;
> > +
> > +#include "sc9863a.dtsi"
> > +
> > +/ {
> > + model = "Spreadtrum SP9863A-1H10 Board";
> > +
> > + compatible = "sprd,sp9863a-1h10", "sprd,sc9863a";
> > +
> > + sprd,sc-id = <9863 1 0x20000>;
>
> Not documented.

Ok, will add.

Thanks for the review,
Chunyan

>
> > +
> > + aliases {
> > + serial0 = &uart0;
> > + serial1 = &uart1;
> > + };
> > +
> > + memory {
>
> memory@80000000
>
> > + device_type = "memory";
> > + reg = <0x0 0x80000000 0x0 0x80000000>;
> > + };
> > +
> > + chosen {
> > + stdout-path = "serial1:115200n8";
> > + };
> > +};
> > +
> > +&uart0 {
> > + status = "okay";
> > +};
> > +
> > +&uart1 {
> > + status = "okay";
> > +};
> > --
> > 2.20.1
> >
> >

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