diff options
| author | Lars Povlsen <lars.povlsen@microchip.com> | 2020-08-24 23:30:07 +0300 |
|---|---|---|
| committer | Lars Povlsen <lars.povlsen@microchip.com> | 2020-09-16 11:34:21 +0300 |
| commit | 08ee16e95492f41d69df3b7fbd942d35dfece6a9 (patch) | |
| tree | a416b5f5ac6cffaa6234dfba8c28ada998973e25 /arch/arm64/boot | |
| parent | b17400c9dec40d5f263cfe692452e70ec978066a (diff) | |
| download | linux-08ee16e95492f41d69df3b7fbd942d35dfece6a9.tar.xz | |
arm64: dts: sparx5: Add SPI controller and associated mmio-mux
This adds a SPI controller to the Microchip Sparx5 SoC, as well as the
mmio-mux that is required to select the right SPI interface for a
given SPI device.
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Link: https://lore.kernel.org/r/20200824203010.2033-4-lars.povlsen@microchip.com
Diffstat (limited to 'arch/arm64/boot')
| -rw-r--r-- | arch/arm64/boot/dts/microchip/sparx5.dtsi | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/microchip/sparx5.dtsi b/arch/arm64/boot/dts/microchip/sparx5.dtsi index a84ffd3069d4..b7a38557fb77 100644 --- a/arch/arm64/boot/dts/microchip/sparx5.dtsi +++ b/arch/arm64/boot/dts/microchip/sparx5.dtsi @@ -14,6 +14,7 @@ #size-cells = <1>; aliases { + spi0 = &spi0; serial0 = &uart0; serial1 = &uart1; }; @@ -118,6 +119,22 @@ interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>; }; + cpu_ctrl: syscon@600000000 { + compatible = "microchip,sparx5-cpu-syscon", "syscon", + "simple-mfd"; + reg = <0x6 0x00000000 0xd0>; + mux: mux-controller { + compatible = "mmio-mux"; + #mux-control-cells = <0>; + /* + * SI_OWNER and SI2_OWNER in GENERAL_CTRL + * SPI: value 9 - (SIMC,SIBM) = 0b1001 + * SPI2: value 6 - (SIBM,SIMC) = 0b0110 + */ + mux-reg-masks = <0x88 0xf0>; + }; + }; + uart0: serial@600100000 { pinctrl-0 = <&uart_pins>; pinctrl-names = "default"; @@ -144,6 +161,19 @@ status = "disabled"; }; + spi0: spi@600104000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "microchip,sparx5-spi"; + reg = <0x6 0x00104000 0x40>; + num-cs = <16>; + reg-io-width = <4>; + reg-shift = <2>; + clocks = <&ahb_clk>; + interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + }; + timer1: timer@600105000 { compatible = "snps,dw-apb-timer"; reg = <0x6 0x00105000 0x1000>; |