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1f818b09f8
This series of upstream patches properly implement a clock and reset driver for old ralink SoCs[1]. And it includes some related fixes[2] and improvements[3][4]. All patches have been merged into linux-next. They will be part of upcoming Linux 6.5. In order to switch to the new system controller driver, all clocks and resets properties in SoC dtsi have been updated, and kernel symbol "CONFIG_CLK_MTMIPS" have been added to the kernel config files. [1] https://lore.kernel.org/all/20230619040941.1340372-1-sergio.paracuellos@gmail.com [2] https://lore.kernel.org/all/20230622-mips-ralink-clk-wuninitialized-v1-1-ea9041240d10@kernel.org [3] https://lore.kernel.org/all/OSYP286MB03120BABB25900E113ED42B7BC5CA@OSYP286MB0312.JPNP286.PROD.OUTLOOK.COM [4] https://lore.kernel.org/all/TYAP286MB03151148AF8C054621DD55C3BC23A@TYAP286MB0315.JPNP286.PROD.OUTLOOK.COM Tested on Motorola MWR03 (MT7628) Tested on Haier HW-L1W (MT7620) Signed-off-by: Shiji Yang <yangshiji66@qq.com>
408 lines
6.8 KiB
Plaintext
408 lines
6.8 KiB
Plaintext
/dts-v1/;
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/ {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "ralink,rt3352-soc";
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aliases {
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spi0 = &spi0;
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spi1 = &spi1;
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serial0 = &uartlite;
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};
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cpus {
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#address-cells = <1>;
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#size-cells = <0>;
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cpu@0 {
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compatible = "mips,mips24KEc";
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reg = <0>;
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};
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};
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chosen {
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bootargs = "console=ttyS0,57600";
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};
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cpuintc: cpuintc {
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#address-cells = <0>;
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#interrupt-cells = <1>;
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interrupt-controller;
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compatible = "mti,cpu-interrupt-controller";
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};
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palmbus: palmbus@10000000 {
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compatible = "palmbus";
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reg = <0x10000000 0x200000>;
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ranges = <0x0 0x10000000 0x1FFFFF>;
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#address-cells = <1>;
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#size-cells = <1>;
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sysc: syscon@0 {
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compatible = "ralink,rt3352-sysc", "syscon";
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reg = <0x0 0x100>;
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#clock-cells = <1>;
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#reset-cells = <1>;
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};
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timer: timer@100 {
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compatible = "ralink,rt3352-timer", "ralink,rt2880-timer";
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reg = <0x100 0x20>;
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clocks = <&sysc 4>;
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interrupt-parent = <&intc>;
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interrupts = <1>;
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};
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watchdog: watchdog@120 {
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compatible = "ralink,rt3352-wdt", "ralink,rt2880-wdt";
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reg = <0x120 0x10>;
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clocks = <&sysc 5>;
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resets = <&sysc 8>;
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reset-names = "wdt";
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interrupt-parent = <&intc>;
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interrupts = <1>;
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};
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intc: intc@200 {
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compatible = "ralink,rt3352-intc", "ralink,rt2880-intc";
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reg = <0x200 0x100>;
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interrupt-controller;
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#interrupt-cells = <1>;
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interrupt-parent = <&cpuintc>;
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interrupts = <2>;
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};
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memc: memc@300 {
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compatible = "ralink,rt3352-memc", "ralink,rt3050-memc";
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reg = <0x300 0x100>;
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resets = <&sysc 20>;
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reset-names = "mc";
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interrupt-parent = <&intc>;
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interrupts = <3>;
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};
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uart: uart@500 {
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compatible = "ralink,rt3352-uart", "ralink,rt2880-uart", "ns16550a";
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reg = <0x500 0x100>;
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clocks = <&sysc 6>;
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resets = <&sysc 12>;
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interrupt-parent = <&intc>;
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interrupts = <5>;
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reg-shift = <2>;
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status = "disabled";
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};
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gpio0: gpio@600 {
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compatible = "ralink,rt3352-gpio", "ralink,rt2880-gpio";
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reg = <0x600 0x34>;
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gpio-controller;
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#gpio-cells = <2>;
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ngpios = <24>;
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ralink,gpio-base = <0>;
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ralink,register-map = [ 00 04 08 0c
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20 24 28 2c
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30 34 ];
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resets = <&sysc 13>;
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reset-names = "pio";
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interrupt-parent = <&intc>;
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interrupts = <6>;
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};
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gpio1: gpio@638 {
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compatible = "ralink,rt3352-gpio", "ralink,rt2880-gpio";
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reg = <0x638 0x24>;
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gpio-controller;
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#gpio-cells = <2>;
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ngpios = <16>;
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ralink,gpio-base = <24>;
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ralink,register-map = [ 00 04 08 0c
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10 14 18 1c
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20 24 ];
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status = "disabled";
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};
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gpio2: gpio@660 {
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compatible = "ralink,rt3352-gpio", "ralink,rt2880-gpio";
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reg = <0x660 0x24>;
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gpio-controller;
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#gpio-cells = <2>;
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ngpios = <6>;
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ralink,gpio-base = <40>;
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ralink,register-map = [ 00 04 08 0c
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10 14 18 1c
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20 24 ];
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status = "disabled";
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};
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i2c@900 {
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compatible = "ralink,rt2880-i2c";
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reg = <0x900 0x100>;
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clocks = <&sysc 7>;
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resets = <&sysc 16>;
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reset-names = "i2c";
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#address-cells = <1>;
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#size-cells = <0>;
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status = "disabled";
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pinctrl-names = "default";
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pinctrl-0 = <&i2c_pins>;
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};
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i2s@a00 {
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compatible = "ralink,rt3352-i2s";
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reg = <0xa00 0x100>;
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clocks = <&sysc 8>;
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resets = <&sysc 17>;
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reset-names = "i2s";
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interrupt-parent = <&intc>;
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interrupts = <10>;
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txdma-req = <2>;
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rxdma-req = <3>;
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dmas = <&gdma 4>,
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<&gdma 6>;
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dma-names = "tx", "rx";
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status = "disabled";
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};
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spi0: spi@b00 {
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compatible = "ralink,rt3352-spi", "ralink,rt2880-spi";
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reg = <0xb00 0x40>;
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#address-cells = <1>;
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#size-cells = <0>;
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clocks = <&sysc 9>;
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resets = <&sysc 18>;
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reset-names = "spi";
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pinctrl-names = "default";
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pinctrl-0 = <&spi_pins>;
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status = "disabled";
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};
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spi1: spi@b40 {
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compatible = "ralink,rt3352-spi", "ralink,rt2880-spi";
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reg = <0xb40 0x60>;
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#address-cells = <1>;
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#size-cells = <0>;
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resets = <&sysc 18>;
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reset-names = "spi";
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pinctrl-names = "default";
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pinctrl-0 = <&spi_cs1>;
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status = "disabled";
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};
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uartlite: uartlite@c00 {
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compatible = "ralink,rt3352-uart", "ralink,rt2880-uart", "ns16550a";
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reg = <0xc00 0x100>;
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clocks = <&sysc 11>;
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resets = <&sysc 19>;
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interrupt-parent = <&intc>;
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interrupts = <12>;
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reg-shift = <2>;
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pinctrl-names = "default";
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pinctrl-0 = <&uartlite_pins>;
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};
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gdma: gdma@2800 {
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compatible = "ralink,rt3883-gdma";
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reg = <0x2800 0x800>;
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resets = <&sysc 14>;
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reset-names = "dma";
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interrupt-parent = <&intc>;
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interrupts = <7>;
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#dma-cells = <1>;
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#dma-channels = <16>;
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#dma-requests = <16>;
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status = "disabled";
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};
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};
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pinctrl: pinctrl {
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compatible = "ralink,rt2880-pinmux";
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pinctrl-names = "default";
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pinctrl-0 = <&state_default>;
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state_default: pinctrl0 {
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};
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i2c_pins: i2c_pins {
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i2c_pins {
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groups = "i2c";
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function = "i2c";
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};
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};
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mdio_pins: mdio {
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mdio {
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groups = "mdio";
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function = "mdio";
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};
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};
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rgmii_pins: rgmii {
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rgmii {
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groups = "rgmii";
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function = "rgmii";
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};
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};
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spi_pins: spi_pins {
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spi_pins {
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groups = "spi";
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function = "spi";
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};
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};
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spi_cs1: spi1 {
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spi1 {
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groups = "spi_cs1";
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function = "spi_cs1";
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};
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};
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uartlite_pins: uartlite {
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uart {
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groups = "uartlite";
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function = "uartlite";
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};
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};
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};
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ethernet: ethernet@10100000 {
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compatible = "ralink,rt3352-eth", "ralink,rt3050-eth";
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reg = <0x10100000 0x10000>;
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clocks = <&sysc 12>;
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resets = <&sysc 21>;
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reset-names = "fe";
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interrupt-parent = <&cpuintc>;
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interrupts = <5>;
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mediatek,switch = <&esw>;
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};
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esw: esw@10110000 {
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compatible = "ralink,rt3352-esw", "ralink,rt3050-esw";
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reg = <0x10110000 0x8000>;
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resets = <&sysc 23>, <&sysc 24>;
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reset-names = "esw", "ephy";
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interrupt-parent = <&intc>;
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interrupts = <17>;
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};
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usbphy: usbphy {
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compatible = "ralink,rt3352-usbphy";
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#phy-cells = <0>;
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ralink,sysctl = <&sysc>;
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resets = <&sysc 22>, <&sysc 25>;
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reset-names = "host", "device";
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};
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wmac: wmac@10180000 {
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compatible = "ralink,rt3352-wmac", "ralink,rt2880-wmac";
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reg = <0x10180000 0x40000>;
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clocks = <&sysc 13>;
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interrupt-parent = <&cpuintc>;
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interrupts = <6>;
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ralink,eeprom = "soc_wmac.eeprom";
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};
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ehci: ehci@101c0000 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "generic-ehci";
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reg = <0x101c0000 0x1000>;
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phys = <&usbphy>;
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phy-names = "usb";
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interrupt-parent = <&intc>;
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interrupts = <18>;
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status = "disabled";
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ehci_port1: port@1 {
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reg = <1>;
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#trigger-source-cells = <0>;
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};
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};
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ohci: ohci@101c1000 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "generic-ohci";
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reg = <0x101c1000 0x1000>;
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phys = <&usbphy>;
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phy-names = "usb";
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interrupt-parent = <&intc>;
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interrupts = <18>;
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status = "disabled";
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ohci_port1: port@1 {
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reg = <1>;
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#trigger-source-cells = <0>;
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};
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};
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};
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