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Groups > linux.kernel > #1590930 > unrolled thread
| Started by | Chunyan Zhang <chunyan.zhang@spreadtrum.com> |
|---|---|
| First post | 2017-03-02 10:00 +0100 |
| Last post | 2017-03-03 13:00 +0100 |
| Articles | 4 — 4 participants |
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[PATCH V3 0/4] Add Spreadtrum SP9860G support Chunyan Zhang <chunyan.zhang@spreadtrum.com> - 2017-03-02 10:00 +0100
Re: [PATCH V3 1/4] arm64: dts: Add basic DT to support Spreadtrum's SP9860G Mathieu Poirier <mathieu.poirier@linaro.org> - 2017-03-02 18:00 +0100
Re: [PATCH V3 3/4] dt-bindings: serial: add a new compatible string for SC9860 Rob Herring <robh@kernel.org> - 2017-03-03 08:30 +0100
Re: [PATCH V3 3/4] dt-bindings: serial: add a new compatible string for SC9860 Chunyan Zhang <zhang.lyra@gmail.com> - 2017-03-03 13:00 +0100
| From | Chunyan Zhang <chunyan.zhang@spreadtrum.com> |
|---|---|
| Date | 2017-03-02 10:00 +0100 |
| Subject | [PATCH V3 0/4] Add Spreadtrum SP9860G support |
| Message-ID | <tgsz7-6IB-13@gated-at.bofh.it> |
SC9860 is a Spreadtrum SoC with eight Cortex A53, which are divided into 4 Big cores and 4 little cores. This patch-set provides a basic configuration for SC9860 in device tree to make it run to console. After this we will continue to submit other device drivers step by step, which are using on most of Spreadtrum's SoCs. Changes from v2: * Addressed comments from Mathieu - Removed CoreSight devices' lables from DT; - Added another level of imbrication for ETFs which have more than one port; * Addressed comments from Rob - Switched to use SPDX-License-Identifier tag instead; - Moved the 26m fixed clock node to top level in DT; - Splited the patch into two, since they were revising two dt-bindings; - Removed redundant space from sprd-usrt.txt; - Removed useless property from the sprd_uart example of DT configuration. Changes from v1: * Removed useless idle-state node 'deep_sleep' from DT * Removed useless property 'sc-id' from DT * Removed 'clock-frequency' property from the node 'timer' * Added another compatible string '"arm,cortex-a53-pmu"' and property 'interrupt-affinity' for pmu * Kept using the existed compatible string of sprd_serial driver, and added a new one for sc9860 in DT. Thanks, Chunyan Chunyan Zhang (2): dt-bindings: arm: Add bindings for SP9860G dt-bindings: serial: add a new compatible string for SC9860 Orson Zhai (1): arm64: dts: Add basic DT to support Spreadtrum's SP9860G Wei Qiao (1): serial: sprd: adjust TIMEOUT to a big value Documentation/devicetree/bindings/arm/sprd.txt | 13 +- .../devicetree/bindings/serial/sprd-uart.txt | 15 +- arch/arm64/boot/dts/sprd/Makefile | 3 +- arch/arm64/boot/dts/sprd/sc9860.dtsi | 545 +++++++++++++++++++++ arch/arm64/boot/dts/sprd/sp9860g-1h10.dts | 56 +++ arch/arm64/boot/dts/sprd/whale2.dtsi | 71 +++ drivers/tty/serial/sprd_serial.c | 2 +- 7 files changed, 697 insertions(+), 8 deletions(-) create mode 100644 arch/arm64/boot/dts/sprd/sc9860.dtsi create mode 100644 arch/arm64/boot/dts/sprd/sp9860g-1h10.dts create mode 100644 arch/arm64/boot/dts/sprd/whale2.dtsi -- 2.7.4
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| From | Mathieu Poirier <mathieu.poirier@linaro.org> |
|---|---|
| Date | 2017-03-02 18:00 +0100 |
| Subject | Re: [PATCH V3 1/4] arm64: dts: Add basic DT to support Spreadtrum's SP9860G |
| Message-ID | <tgCf7-56J-21@gated-at.bofh.it> |
| In reply to | #1590930 |
On Thu, Mar 02, 2017 at 02:22:07PM +0800, Chunyan Zhang wrote:
> From: Orson Zhai <orson.zhai@spreadtrum.com>
>
> SC9860G is a 8 cores of A53 SoC with 4G LTE support SoC from Spreadtrum.
>
> According to regular hierarchy of sprd dts, whale2.dtsi contains SoC
> peripherals IP nodes, sc9860.dtsi contains stuff related to ARM core stuff
> and sp9860g dts is for the board level.
>
> Signed-off-by: Orson Zhai <orson.zhai@spreadtrum.com>
> Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
> ---
> arch/arm64/boot/dts/sprd/Makefile | 3 +-
> arch/arm64/boot/dts/sprd/sc9860.dtsi | 545 ++++++++++++++++++++++++++++++
> arch/arm64/boot/dts/sprd/sp9860g-1h10.dts | 56 +++
> arch/arm64/boot/dts/sprd/whale2.dtsi | 71 ++++
> 4 files changed, 674 insertions(+), 1 deletion(-)
> create mode 100644 arch/arm64/boot/dts/sprd/sc9860.dtsi
> create mode 100644 arch/arm64/boot/dts/sprd/sp9860g-1h10.dts
> create mode 100644 arch/arm64/boot/dts/sprd/whale2.dtsi
>
> diff --git a/arch/arm64/boot/dts/sprd/Makefile b/arch/arm64/boot/dts/sprd/Makefile
> index b658c5e..f0535e6 100644
> --- a/arch/arm64/boot/dts/sprd/Makefile
> +++ b/arch/arm64/boot/dts/sprd/Makefile
> @@ -1,4 +1,5 @@
> -dtb-$(CONFIG_ARCH_SPRD) += sc9836-openphone.dtb
> +dtb-$(CONFIG_ARCH_SPRD) += sc9836-openphone.dtb \
> + sp9860g-1h10.dtb
>
> always := $(dtb-y)
> subdir-y := $(dts-dirs)
> diff --git a/arch/arm64/boot/dts/sprd/sc9860.dtsi b/arch/arm64/boot/dts/sprd/sc9860.dtsi
> new file mode 100644
> index 0000000..0fd6d8c
> --- /dev/null
> +++ b/arch/arm64/boot/dts/sprd/sc9860.dtsi
> @@ -0,0 +1,545 @@
> +/*
> + * Spreadtrum SC9860 SoC
> + *
> + * Copyright (C) 2016, Spreadtrum Communications Inc.
> + *
> + * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> + */
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include "whale2.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@530000 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530000>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU1: cpu@530001 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530001>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU2: cpu@530002 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530002>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU3: cpu@530003 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530003>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU4: cpu@530100 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530100>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU5: cpu@530101 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530101>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU6: cpu@530102 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530102>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> +
> + CPU7: cpu@530103 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x530103>;
> + enable-method = "psci";
> + cpu-idle-states = <&CORE_PD &CLUSTER_PD>;
> + };
> + };
> +
> + idle-states{
> + entry-method = "arm,psci";
> +
> + CORE_PD: core_pd {
> + compatible = "arm,idle-state";
> + entry-latency-us = <1000>;
> + exit-latency-us = <700>;
> + min-residency-us = <2500>;
> + local-timer-stop;
> + arm,psci-suspend-param = <0x00010002>;
> + };
> +
> + CLUSTER_PD: cluster_pd {
> + compatible = "arm,idle-state";
> + entry-latency-us = <1000>;
> + exit-latency-us = <1000>;
> + min-residency-us = <3000>;
> + local-timer-stop;
> + arm,psci-suspend-param = <0x01010003>;
> + };
> + };
> +
> + gic: interrupt-controller@12001000 {
> + compatible = "arm,gic-400";
> + reg = <0 0x12001000 0 0x1000>,
> + <0 0x12002000 0 0x2000>,
> + <0 0x12004000 0 0x2000>,
> + <0 0x12006000 0 0x2000>;
> + #interrupt-cells = <3>;
> + interrupt-controller;
> + interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(8)
> + | IRQ_TYPE_LEVEL_HIGH)>;
> + };
> +
> + psci {
> + compatible = "arm,psci-0.2";
> + method = "smc";
> + };
> +
> + timer {
> + compatible = "arm,armv8-timer";
> + interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(8)
> + | IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(8)
> + | IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(8)
> + | IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(8)
> + | IRQ_TYPE_LEVEL_LOW)>;
> + };
> +
> + pmu {
> + compatible = "arm,cortex-a53-pmu", "arm,armv8-pmuv3";
> + interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-affinity = <&CPU0>,
> + <&CPU1>,
> + <&CPU2>,
> + <&CPU3>,
> + <&CPU4>,
> + <&CPU5>,
> + <&CPU6>,
> + <&CPU7>;
> + };
> +
> + soc {
> + funnel@10001000 { /* SoC Funnel */
> + compatible = "arm,coresight-funnel", "arm,primecell";
> + reg = <0 0x10001000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + soc_funnel_out_port: endpoint {
> + remote-endpoint = <&etb_in>;
> + };
> + };
> +
> + port@1 {
> + reg = <0>;
> + soc_funnel_in_port: endpoint {
> + slave-mode;
> + remote-endpoint =
> + <&main_funnel_out_port>;
> + };
> + };
> + };
> + };
> +
> + etb@10003000 {
> + compatible = "arm,coresight-tmc", "arm,primecell";
> + reg = <0 0x10003000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> + port {
> + etb_in: endpoint {
> + slave-mode;
> + remote-endpoint =
> + <&soc_funnel_out_port>;
> + };
> + };
> + };
> +
> + funnel@11001000 { /* Cluster0 Funnel */
> + compatible = "arm,coresight-funnel", "arm,primecell";
> + reg = <0 0x11001000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + cluster0_funnel_out_port: endpoint {
> + remote-endpoint =
> + <&cluster0_etf_in>;
> + };
> + };
> +
> + port@1 {
> + reg = <0>;
> + cluster0_funnel_in_port0: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm0_out>;
> + };
> + };
> +
> + port@2 {
> + reg = <1>;
> + cluster0_funnel_in_port1: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm1_out>;
> + };
> + };
> +
> + port@3 {
> + reg = <2>;
> + cluster0_funnel_in_port2: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm2_out>;
> + };
> + };
> +
> + port@4 {
> + reg = <4>;
> + cluster0_funnel_in_port3: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm3_out>;
> + };
> + };
> + };
> + };
> +
> + funnel@11002000 { /* Cluster1 Funnel */
> + compatible = "arm,coresight-funnel", "arm,primecell";
> + reg = <0 0x11002000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + cluster1_funnel_out_port: endpoint {
> + remote-endpoint =
> + <&cluster1_etf_in>;
> + };
> + };
> +
> + port@1 {
> + reg = <0>;
> + cluster1_funnel_in_port0: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm4_out>;
> + };
> + };
> +
> + port@2 {
> + reg = <1>;
> + cluster1_funnel_in_port1: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm5_out>;
> + };
> + };
> +
> + port@3 {
> + reg = <2>;
> + cluster1_funnel_in_port2: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm6_out>;
> + };
> + };
> +
> + port@4 {
> + reg = <3>;
> + cluster1_funnel_in_port3: endpoint {
> + slave-mode;
> + remote-endpoint = <&etm7_out>;
> + };
> + };
> + };
> + };
> +
> + etf@11003000 { /* ETF on Cluster0 */
> + compatible = "arm,coresight-tmc", "arm,primecell";
> + reg = <0 0x11003000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + cluster0_etf_out: endpoint {
> + remote-endpoint =
> + <&main_funnel_in_port0>;
> + };
> + };
> +
> + port@1 {
> + reg = <0>;
> + cluster0_etf_in: endpoint {
> + slave-mode;
> + remote-endpoint =
> + <&cluster0_funnel_out_port>;
> + };
> + };
> + };
> + };
> +
> + etf@11004000 { /* ETF on Cluster1 */
> + compatible = "arm,coresight-tmc", "arm,primecell";
> + reg = <0 0x11004000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + cluster1_etf_out: endpoint {
> + remote-endpoint =
> + <&main_funnel_in_port1>;
> + };
> + };
> +
> + port@1 {
> + reg = <0>;
> + cluster1_etf_in: endpoint {
> + slave-mode;
> + remote-endpoint =
> + <&cluster1_funnel_out_port>;
> + };
> + };
> + };
> + };
> +
> + funnel@11005000 { /* Main Funnel */
> + compatible = "arm,coresight-funnel", "arm,primecell";
> + reg = <0 0x11005000 0 0x1000>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + main_funnel_out_port: endpoint {
> + remote-endpoint =
> + <&soc_funnel_in_port>;
> + };
> + };
> +
> + port@1 {
> + reg = <0>;
> + main_funnel_in_port0: endpoint {
> + slave-mode;
> + remote-endpoint =
> + <&cluster0_etf_out>;
> + };
> + };
> +
> + port@2 {
> + reg = <1>;
> + main_funnel_in_port1: endpoint {
> + slave-mode;
> + remote-endpoint =
> + <&cluster1_etf_out>;
> + };
> + };
> + };
> + };
> +
> + etm@11440000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11440000 0 0x1000>;
> + cpu = <&CPU0>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm0_out: endpoint {
> + remote-endpoint =
> + <&cluster0_funnel_in_port0>;
> + };
> + };
> + };
> +
> + etm@11540000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11540000 0 0x1000>;
> + cpu = <&CPU1>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm1_out: endpoint {
> + remote-endpoint =
> + <&cluster0_funnel_in_port1>;
> + };
> + };
> + };
> +
> + etm@11640000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11640000 0 0x1000>;
> + cpu = <&CPU2>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm2_out: endpoint {
> + remote-endpoint =
> + <&cluster0_funnel_in_port2>;
> + };
> + };
> + };
> +
> + etm@11740000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11740000 0 0x1000>;
> + cpu = <&CPU3>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm3_out: endpoint {
> + remote-endpoint =
> + <&cluster0_funnel_in_port3>;
> + };
> + };
> + };
> +
> + etm@11840000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11840000 0 0x1000>;
> + cpu = <&CPU4>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm4_out: endpoint {
> + remote-endpoint =
> + <&cluster1_funnel_in_port0>;
> + };
> + };
> + };
> +
> + etm@11940000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11940000 0 0x1000>;
> + cpu = <&CPU5>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm5_out: endpoint {
> + remote-endpoint =
> + <&cluster1_funnel_in_port1>;
> + };
> + };
> + };
> +
> + etm@11a40000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11a40000 0 0x1000>;
> + cpu = <&CPU6>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm6_out: endpoint {
> + remote-endpoint =
> + <&cluster1_funnel_in_port2>;
> + };
> + };
> + };
> +
> + etm@11b40000 {
> + compatible = "arm,coresight-etm4x", "arm,primecell";
> + reg = <0 0x11b40000 0 0x1000>;
> + cpu = <&CPU7>;
> + clocks = <&ext_26m>;
> + clock-names = "apb_pclk";
> +
> + port {
> + etm7_out: endpoint {
> + remote-endpoint =
> + <&cluster1_funnel_in_port3>;
> + };
> + };
> + };
For the CoreSight part:
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
> + };
> +};
> diff --git a/arch/arm64/boot/dts/sprd/sp9860g-1h10.dts b/arch/arm64/boot/dts/sprd/sp9860g-1h10.dts
> new file mode 100644
> index 0000000..ae0b28c
> --- /dev/null
> +++ b/arch/arm64/boot/dts/sprd/sp9860g-1h10.dts
> @@ -0,0 +1,56 @@
> +/*
> + * Spreadtrum SP9860g board
> + *
> + * Copyright (C) 2017, Spreadtrum Communications Inc.
> + *
> + * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> + */
> +
> +/dts-v1/;
> +
> +#include "sc9860.dtsi"
> +
> +/ {
> + model = "Spreadtrum SP9860G 3GFHD Board";
> +
> + compatible = "sprd,sp9860g-1h10", "sprd,sc9860";
> +
> + aliases {
> + serial0 = &uart0; /* for Bluetooth */
> + serial1 = &uart1; /* UART console */
> + serial2 = &uart2; /* Reserved */
> + serial3 = &uart3; /* for GPS */
> + };
> +
> + memory{
> + device_type = "memory";
> + reg = <0x0 0x80000000 0 0x60000000>,
> + <0x1 0x80000000 0 0x60000000>;
> + };
> +
> + chosen {
> + stdout-path = "serial1:115200n8";
> + };
> +
> + reserved-memory {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> + };
> +};
> +
> +&uart0 {
> + status = "okay";
> +};
> +
> +&uart1 {
> + status = "okay";
> +};
> +
> +&uart2 {
> + status = "okay";
> +};
> +
> +&uart3 {
> + status = "okay";
> +};
> diff --git a/arch/arm64/boot/dts/sprd/whale2.dtsi b/arch/arm64/boot/dts/sprd/whale2.dtsi
> new file mode 100644
> index 0000000..ee2c5a2
> --- /dev/null
> +++ b/arch/arm64/boot/dts/sprd/whale2.dtsi
> @@ -0,0 +1,71 @@
> +/*
> + * Spreadtrum Whale2 platform peripherals
> + *
> + * Copyright (C) 2016, Spreadtrum Communications Inc.
> + *
> + * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> + */
> +
> +/ {
> + interrupt-parent = <&gic>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + soc: soc {
> + compatible = "simple-bus";
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> +
> + ap-apb {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0 0x0 0x70000000 0x10000000>;
> +
> + uart0: serial@70000000 {
> + compatible = "sprd,sc9860-uart",
> + "sprd,sc9836-uart";
> + reg = <0x000000 0x100>;
> + interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ext_26m>;
> + status = "disabled";
> + };
> +
> + uart1: serial@70100000 {
> + compatible = "sprd,sc9860-uart",
> + "sprd,sc9836-uart";
> + reg = <0x100000 0x100>;
> + interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ext_26m>;
> + status = "disabled";
> + };
> +
> + uart2: serial@70200000 {
> + compatible = "sprd,sc9860-uart",
> + "sprd,sc9836-uart";
> + reg = <0x200000 0x100>;
> + interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ext_26m>;
> + status = "disabled";
> + };
> +
> + uart3: serial@70300000 {
> + compatible = "sprd,sc9860-uart",
> + "sprd,sc9836-uart";
> + reg = <0x300000 0x100>;
> + interrupts = <GIC_SPI 5 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";
> + };
> +};
> --
> 2.7.4
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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| From | Rob Herring <robh@kernel.org> |
|---|---|
| Date | 2017-03-03 08:30 +0100 |
| Subject | Re: [PATCH V3 3/4] dt-bindings: serial: add a new compatible string for SC9860 |
| Message-ID | <tgPP4-66b-9@gated-at.bofh.it> |
| In reply to | #1590930 |
On Thu, Mar 02, 2017 at 02:22:09PM +0800, Chunyan Zhang wrote:
> SC9860 use the same serial device, so added a new compatible string to
> support SC9860 as well, also added an example of how to describe this
> serial device in DT.
>
> Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
> ---
> Documentation/devicetree/bindings/serial/sprd-uart.txt | 15 ++++++++++++++-
> 1 file changed, 14 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/serial/sprd-uart.txt b/Documentation/devicetree/bindings/serial/sprd-uart.txt
> index 2aff0f2..8bd8144 100644
> --- a/Documentation/devicetree/bindings/serial/sprd-uart.txt
> +++ b/Documentation/devicetree/bindings/serial/sprd-uart.txt
> @@ -1,7 +1,20 @@
> * Spreadtrum serial UART
>
> Required properties:
> -- compatible: must be "sprd,sc9836-uart"
> +- compatible must contain:
> + * "sprd,sc9836-uart" for SC9836 and all Spreadtrum SoCs
> + This also can be specific with:
> + * "sprd,sc9860-uart" for SC9860
Just say:
- compatible: must be one of:
"sprd,sc9836-uart"
"sprd,sc9860-uart", "sprd,sc9836-uart"
> +
> - reg: offset and length of the register set for the device
> - interrupts: exactly one interrupt specifier
> - clocks: phandles to input clocks.
> +
> +Example:
> + uart0: serial@70000000 {
> + compatible = "sprd,sc9860-uart",
> + "sprd,sc9836-uart";
> + reg = <0x000000 0x100>;
unit address doesn't match the reg property.
> + interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ext_26m>;
> + };
> --
> 2.7.4
>
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| From | Chunyan Zhang <zhang.lyra@gmail.com> |
|---|---|
| Date | 2017-03-03 13:00 +0100 |
| Subject | Re: [PATCH V3 3/4] dt-bindings: serial: add a new compatible string for SC9860 |
| Message-ID | <tgU2l-FV-17@gated-at.bofh.it> |
| In reply to | #1591719 |
On 3 March 2017 at 14:21, Rob Herring <robh@kernel.org> wrote:
> On Thu, Mar 02, 2017 at 02:22:09PM +0800, Chunyan Zhang wrote:
>> SC9860 use the same serial device, so added a new compatible string to
>> support SC9860 as well, also added an example of how to describe this
>> serial device in DT.
>>
>> Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
>> ---
>> Documentation/devicetree/bindings/serial/sprd-uart.txt | 15 ++++++++++++++-
>> 1 file changed, 14 insertions(+), 1 deletion(-)
>>
>> diff --git a/Documentation/devicetree/bindings/serial/sprd-uart.txt b/Documentation/devicetree/bindings/serial/sprd-uart.txt
>> index 2aff0f2..8bd8144 100644
>> --- a/Documentation/devicetree/bindings/serial/sprd-uart.txt
>> +++ b/Documentation/devicetree/bindings/serial/sprd-uart.txt
>> @@ -1,7 +1,20 @@
>> * Spreadtrum serial UART
>>
>> Required properties:
>> -- compatible: must be "sprd,sc9836-uart"
>> +- compatible must contain:
>> + * "sprd,sc9836-uart" for SC9836 and all Spreadtrum SoCs
>> + This also can be specific with:
>> + * "sprd,sc9860-uart" for SC9860
>
> Just say:
>
> - compatible: must be one of:
> "sprd,sc9836-uart"
> "sprd,sc9860-uart", "sprd,sc9836-uart"
>
>> +
>> - reg: offset and length of the register set for the device
>> - interrupts: exactly one interrupt specifier
>> - clocks: phandles to input clocks.
>> +
>> +Example:
>> + uart0: serial@70000000 {
>> + compatible = "sprd,sc9860-uart",
>> + "sprd,sc9836-uart";
>> + reg = <0x000000 0x100>;
>
> unit address doesn't match the reg property.
OK, I will revise dts file accordingly.
Thanks,
Chunyan
>
>> + interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
>> + clocks = <&ext_26m>;
>> + };
>> --
>> 2.7.4
>>
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