1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
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.
*/
|
