diff options
Diffstat (limited to 'arch/arm64/boot/dts/apple/s8000.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/apple/s8000.dtsi | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/apple/s8000.dtsi b/arch/arm64/boot/dts/apple/s8000.dtsi new file mode 100644 index 000000000000..6e9046ea106c --- /dev/null +++ b/arch/arm64/boot/dts/apple/s8000.dtsi @@ -0,0 +1,144 @@ +// SPDX-License-Identifier: GPL-2.0+ OR MIT +/* + * Apple S8000 "A9" (Samsung) SoC + * + * Other names: H8P, "Maui" + * + * Copyright (c) 2022, Konrad Dybcio <konradybcio@kernel.org> + */ + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/interrupt-controller/apple-aic.h> +#include <dt-bindings/interrupt-controller/irq.h> +#include <dt-bindings/pinctrl/apple.h> + +/ { + interrupt-parent = <&aic>; + #address-cells = <2>; + #size-cells = <2>; + + clkref: clock-ref { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <24000000>; + clock-output-names = "clkref"; + }; + + cpus { + #address-cells = <2>; + #size-cells = <0>; + + cpu0: cpu@0 { + compatible = "apple,twister"; + reg = <0x0 0x0>; + cpu-release-addr = <0 0>; /* To be filled in by loader */ + enable-method = "spin-table"; + device_type = "cpu"; + }; + + cpu1: cpu@1 { + compatible = "apple,twister"; + reg = <0x0 0x1>; + cpu-release-addr = <0 0>; /* To be filled in by loader */ + enable-method = "spin-table"; + device_type = "cpu"; + }; + }; + + soc { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>; + nonposted-mmio; + ranges; + + serial0: serial@20a0c0000 { + compatible = "apple,s5l-uart"; + reg = <0x2 0x0a0c0000 0x0 0x4000>; + reg-io-width = <4>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 192 IRQ_TYPE_LEVEL_HIGH>; + /* Use the bootloader-enabled clocks for now. */ + clocks = <&clkref>, <&clkref>; + clock-names = "uart", "clk_uart_baud0"; + status = "disabled"; + }; + + aic: interrupt-controller@20e100000 { + compatible = "apple,s8000-aic", "apple,aic"; + reg = <0x2 0x0e100000 0x0 0x100000>; + #interrupt-cells = <3>; + interrupt-controller; + }; + + pinctrl_ap: pinctrl@20f100000 { + compatible = "apple,s8000-pinctrl", "apple,pinctrl"; + reg = <0x2 0x0f100000 0x0 0x100000>; + + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl_ap 0 0 208>; + apple,npins = <208>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 42 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 43 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 44 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 45 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 46 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 47 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 48 IRQ_TYPE_LEVEL_HIGH>; + }; + + pinctrl_aop: pinctrl@2100f0000 { + compatible = "apple,s8000-pinctrl", "apple,pinctrl"; + reg = <0x2 0x100f0000 0x0 0x100000>; + + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl_aop 0 0 42>; + apple,npins = <42>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 113 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 114 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 115 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 116 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 117 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 118 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 119 IRQ_TYPE_LEVEL_HIGH>; + }; + + wdt: watchdog@2102b0000 { + compatible = "apple,s8000-wdt", "apple,wdt"; + reg = <0x2 0x102b0000 0x0 0x4000>; + clocks = <&clkref>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 4 IRQ_TYPE_LEVEL_HIGH>; + }; + }; + + timer { + compatible = "arm,armv8-timer"; + interrupt-parent = <&aic>; + interrupt-names = "phys", "virt"; + /* Note that A9 doesn't actually have a hypervisor (EL2 is not implemented). */ + interrupts = <AIC_FIQ AIC_TMR_GUEST_PHYS IRQ_TYPE_LEVEL_HIGH>, + <AIC_FIQ AIC_TMR_GUEST_VIRT IRQ_TYPE_LEVEL_HIGH>; + }; +}; + +/* + * The A9 was made by two separate fabs on two different process + * nodes: Samsung made the S8000 (APL0898) on 14nm and TSMC made + * the S8003 (APL1022) on 16nm. While they are seemingly the same, + * they do have distinct part numbers and devices using them have + * distinct model names. There are currently no known differences + * between these as far as Linux is concerned, but let's keep things + * structured properly to make it easier to alter the behaviour of + * one of the chips if need be. + */ |