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SubjectRe: [PATCH v4 12/12] MIPS: Add basic support for the TL-WR1043ND version 1
On Sun, 31 May 2015 02:18:26 +0200
Alban Bedel <albeu@free.fr> wrote:

> Add a DTS for TL-WR1043ND version 1 and allow to have it built in the
> kernel to circumvent the broken u-boot found on these boards.
> Currently only the UART, LEDs and buttons are supported.
>
> Signed-off-by: Alban Bedel <albeu@free.fr>
> ---
> v2: * Rebased for the new vendor directory structure
> * Merged the 2 separate patch for SoC dtsi and board DTS in a
> single one
> * Fixed the node names to use ePAPR standardized names
> v3: * Moved adding the Kconfig Builtin devicetree menu to this patch
> * Set the Kconfig builtin DTB menu as optional, removed config
> DTB_ATH79_NONE and slightly improved the menu name and help
> message.
> v4: * Always build the DTB to improve testing coverage
> * Added the SPI controller as the binding has been accepted in
> the SPI tree.
> ---
> arch/mips/ath79/Kconfig | 12 ++
> arch/mips/boot/dts/Makefile | 1 +
> arch/mips/boot/dts/qca/Makefile | 11 ++
> arch/mips/boot/dts/qca/ar9132.dtsi | 133 +++++++++++++++++++++++
> arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts | 112 +++++++++++++++++++
> 5 files changed, 269 insertions(+)
> create mode 100644 arch/mips/boot/dts/qca/Makefile
> create mode 100644 arch/mips/boot/dts/qca/ar9132.dtsi
> create mode 100644 arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts
>
> diff --git a/arch/mips/ath79/Kconfig b/arch/mips/ath79/Kconfig
> index dfc6020..13c04cf 100644
> --- a/arch/mips/ath79/Kconfig
> +++ b/arch/mips/ath79/Kconfig
> @@ -71,6 +71,18 @@ config ATH79_MACH_UBNT_XM
> Say 'Y' here if you want your kernel to support the
> Ubiquiti Networks XM (rev 1.0) board.
>
> +choice
> + prompt "Build a DTB in the kernel"
> + optional
> + help
> + Select a devicetree that should be built into the kernel.
> +
> + config DTB_TL_WR1043ND_V1
> + bool "TL-WR1043ND Version 1"
> + select BUILTIN_DTB
> + select SOC_AR913X
> +endchoice
> +
> endmenu
>
> config SOC_AR71XX
> diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile
> index 5d95e4b..9975485 100644
> --- a/arch/mips/boot/dts/Makefile
> +++ b/arch/mips/boot/dts/Makefile
> @@ -3,6 +3,7 @@ dts-dirs += cavium-octeon
> dts-dirs += lantiq
> dts-dirs += mti
> dts-dirs += netlogic
> +dts-dirs += qca
> dts-dirs += ralink
>
> obj-y := $(addsuffix /, $(dts-dirs))
> diff --git a/arch/mips/boot/dts/qca/Makefile b/arch/mips/boot/dts/qca/Makefile
> new file mode 100644
> index 0000000..2d61455d
> --- /dev/null
> +++ b/arch/mips/boot/dts/qca/Makefile
> @@ -0,0 +1,11 @@
> +# All DTBs
> +dtb-$(CONFIG_ATH79) += ar9132_tl_wr1043nd_v1.dtb
> +
> +# Select a DTB to build in the kernel
> +obj-$(CONFIG_DTB_TL_WR1043ND_V1) += ar9132_tl_wr1043nd_v1.dtb.o
> +
> +# Force kbuild to make empty built-in.o if necessary
> +obj- += dummy.o
> +
> +always := $(dtb-y)
> +clean-files := *.dtb *.dtb.S
> diff --git a/arch/mips/boot/dts/qca/ar9132.dtsi b/arch/mips/boot/dts/qca/ar9132.dtsi
> new file mode 100644
> index 0000000..4759cff
> --- /dev/null
> +++ b/arch/mips/boot/dts/qca/ar9132.dtsi
> @@ -0,0 +1,133 @@
> +/ {
> + compatible = "qca,ar9132";
> +
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + cpu@0 {
> + device_type = "cpu";
> + compatible = "mips,mips24Kc";
> + reg = <0>;
> + };
> + };
> +
> + cpuintc: interrupt-controller {
> + compatible = "qca,ar9132-cpu-intc", "qca,ar7100-cpu-intc";
> +
> + interrupt-controller;
> + #interrupt-cells = <1>;
> +
> + qca,ddr-wb-channel-interrupts = <2>, <3>, <4>, <5>;
> + qca,ddr-wb-channels = <&ddr_ctrl 3>, <&ddr_ctrl 2>,
> + <&ddr_ctrl 0>, <&ddr_ctrl 1>;
> + };
> +
> + ahb {
> + compatible = "simple-bus";
> + ranges;
> +
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + interrupt-parent = <&cpuintc>;
> +
> + apb {
> + compatible = "simple-bus";
> + ranges;
> +
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + interrupt-parent = <&miscintc>;
> +
> + ddr_ctrl: memory-controller@18000000 {
> + compatible = "qca,ar9132-ddr-controller",
> + "qca,ar7240-ddr-controller";
> + reg = <0x18000000 0x100>;
> +
> + #qca,ddr-wb-channel-cells = <1>;
> + };
> +
> + uart@18020000 {
> + compatible = "ns8250";
> + reg = <0x18020000 0x20>;
> + interrupts = <3>;
> +
> + clocks = <&pll 2>;
> + clock-names = "uart";
> +
> + reg-io-width = <4>;
> + reg-shift = <2>;
> + no-loopback-test;
> +
> + status = "disabled";
> + };
> +
> + gpio: gpio@18040000 {
> + compatible = "qca,ar9132-gpio",
> + "qca,ar7100-gpio";
> + reg = <0x18040000 0x30>;
> + interrupts = <2>;
> +
> + ngpios = <22>;
> +
> + gpio-controller;
> + #gpio-cells = <2>;
> +
> + interrupt-controller;
> + #interrupt-cells = <2>;
> + };
> +
> + pll: pll-controller@18050000 {
> + compatible = "qca,ar9132-ppl",
> + "qca,ar9130-pll";
> + reg = <0x18050000 0x20>;
> +
> + clock-names = "ref";
> + /* The board must provides the ref clock */
> +
> + #clock-cells = <1>;
> + clock-output-names = "cpu", "ddr", "ahb";
> + };
> +
> + wdt@18060008 {
> + compatible = "qca,ar7130-wdt";
> + reg = <0x18060008 0x8>;
> +
> + interrupts = <4>;
> +
> + clocks = <&pll 2>;
> + clock-names = "wdt";
> + };
> +
> + miscintc: interrupt-controller@18060010 {
> + compatible = "qca,ar9132-misc-intc",
> + "qca,ar7100-misc-intc";
> + reg = <0x18060010 0x4>;
> +
> + interrupt-parent = <&cpuintc>;
> + interrupts = <6>;
> +
> + interrupt-controller;
> + #interrupt-cells = <1>;
> + };
> + };
> +
> + spi@1f000000 {

Could we add an alias here? E.g.

spi: spi@1f000000 {

So we can use the alias in the board dts file with zero indent. E.g

&spi {
status = "okay";
num-cs = <1>;

flash@0 {
...


Just the same change can be used with uart@18020000.

> diff --git a/arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts b/arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts
> new file mode 100644
> index 0000000..003015a
> --- /dev/null
> +++ b/arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts
> @@ -0,0 +1,112 @@
> +/dts-v1/;
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +
> +#include "ar9132.dtsi"
> +
> +/ {
> + compatible = "tplink,tl-wr1043nd-v1", "qca,ar9132";
> + model = "TP-Link TL-WR1043ND Version 1";
> +
> + alias {
> + serial0 = "/ahb/apb/uart@18020000";
> + };
> +
> + memory@0 {
> + device_type = "memory";
> + reg = <0x0 0x2000000>;
> + };
> +
> + extosc: oscillator {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <40000000>;
> + };
> +
> + ahb {
> + apb {
> + uart@18020000 {
> + status = "okay";
> + };
> +
> + pll-controller@18050000 {
> + clocks = <&extosc>;
> + };
> + };
> +
> + spi@1f000000 {
> + status = "okay";
> + num-cs = <1>;
> +
> + flash@0 {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "s25sl064a";
> + reg = <0>;
> + spi-max-frequency = <25000000>;
> +
> + partition@0 {
> + label = "u-boot";
> + reg = <0x000000 0x020000>;
> + };
> +
> + partition@1 {
> + label = "firmware";
> + reg = <0x020000 0x7D0000>;
> + };
> +
> + partition@2 {
> + label = "art";
> + reg = <0x7F0000 0x010000>;
> + read-only;
> + };
> + };
> + };
> + };
> +
> + gpio-keys {
> + compatible = "gpio-keys-polled";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + poll-interval = <20>;
> + button@0 {
> + label = "reset";
> + linux,code = <KEY_RESTART>;
> + gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
> + debounce-interval = <60>;
> + };
> +
> + button@1 {
> + label = "qss";
> + linux,code = <KEY_WPS_BUTTON>;
> + gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
> + debounce-interval = <60>;
> + };
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> + led@0 {
> + label = "tp-link:green:usb";
> + gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
> + };
> +
> + led@1 {
> + label = "tp-link:green:system";
> + gpios = <&gpio 2 GPIO_ACTIVE_LOW>;
> + linux,default-trigger = "heartbeat";
> + };
> +
> + led@2 {
> + label = "tp-link:green:qss";
> + gpios = <&gpio 5 GPIO_ACTIVE_HIGH>;
> + };
> +
> + led@3 {
> + label = "tp-link:green:wlan";
> + gpios = <&gpio 9 GPIO_ACTIVE_LOW>;
> + };
> + };
> +};
> --
> 2.0.0
>


--
-- 
Best regards,
  Antony Pavlov
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