xref: /openbmc/qemu/include/hw/arm/npcm7xx.h (revision edf64786)
1 /*
2  * Nuvoton NPCM7xx SoC family.
3  *
4  * Copyright 2020 Google LLC
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms of the GNU General Public License as published by the
8  * Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14  * for more details.
15  */
16 #ifndef NPCM7XX_H
17 #define NPCM7XX_H
18 
19 #include "hw/boards.h"
20 #include "hw/adc/npcm7xx_adc.h"
21 #include "hw/cpu/a9mpcore.h"
22 #include "hw/gpio/npcm7xx_gpio.h"
23 #include "hw/mem/npcm7xx_mc.h"
24 #include "hw/misc/npcm7xx_clk.h"
25 #include "hw/misc/npcm7xx_gcr.h"
26 #include "hw/misc/npcm7xx_pwm.h"
27 #include "hw/misc/npcm7xx_rng.h"
28 #include "hw/nvram/npcm7xx_otp.h"
29 #include "hw/timer/npcm7xx_timer.h"
30 #include "hw/ssi/npcm7xx_fiu.h"
31 #include "hw/usb/hcd-ehci.h"
32 #include "hw/usb/hcd-ohci.h"
33 #include "target/arm/cpu.h"
34 
35 #define NPCM7XX_MAX_NUM_CPUS    (2)
36 
37 /* The first half of the address space is reserved for DDR4 DRAM. */
38 #define NPCM7XX_DRAM_BA         (0x00000000)
39 #define NPCM7XX_DRAM_SZ         (2 * GiB)
40 
41 /* Magic addresses for setting up direct kernel booting and SMP boot stubs. */
42 #define NPCM7XX_LOADER_START            (0x00000000)  /* Start of SDRAM */
43 #define NPCM7XX_SMP_LOADER_START        (0xffff0000)  /* Boot ROM */
44 #define NPCM7XX_SMP_BOOTREG_ADDR        (0xf080013c)  /* GCR.SCRPAD */
45 #define NPCM7XX_GIC_CPU_IF_ADDR         (0xf03fe100)  /* GIC within A9 */
46 #define NPCM7XX_BOARD_SETUP_ADDR        (0xffff1000)  /* Boot ROM */
47 
48 typedef struct NPCM7xxMachine {
49     MachineState        parent;
50 } NPCM7xxMachine;
51 
52 #define TYPE_NPCM7XX_MACHINE MACHINE_TYPE_NAME("npcm7xx")
53 #define NPCM7XX_MACHINE(obj)                                            \
54     OBJECT_CHECK(NPCM7xxMachine, (obj), TYPE_NPCM7XX_MACHINE)
55 
56 typedef struct NPCM7xxMachineClass {
57     MachineClass        parent;
58 
59     const char          *soc_type;
60 } NPCM7xxMachineClass;
61 
62 #define NPCM7XX_MACHINE_CLASS(klass)                                    \
63     OBJECT_CLASS_CHECK(NPCM7xxMachineClass, (klass), TYPE_NPCM7XX_MACHINE)
64 #define NPCM7XX_MACHINE_GET_CLASS(obj)                                  \
65     OBJECT_GET_CLASS(NPCM7xxMachineClass, (obj), TYPE_NPCM7XX_MACHINE)
66 
67 typedef struct NPCM7xxState {
68     DeviceState         parent;
69 
70     ARMCPU              cpu[NPCM7XX_MAX_NUM_CPUS];
71     A9MPPrivState       a9mpcore;
72 
73     MemoryRegion        sram;
74     MemoryRegion        irom;
75     MemoryRegion        ram3;
76     MemoryRegion        *dram;
77 
78     NPCM7xxGCRState     gcr;
79     NPCM7xxCLKState     clk;
80     NPCM7xxTimerCtrlState tim[3];
81     NPCM7xxADCState     adc;
82     NPCM7xxPWMState     pwm[2];
83     NPCM7xxOTPState     key_storage;
84     NPCM7xxOTPState     fuse_array;
85     NPCM7xxMCState      mc;
86     NPCM7xxRNGState     rng;
87     NPCM7xxGPIOState    gpio[8];
88     EHCISysBusState     ehci;
89     OHCISysBusState     ohci;
90     NPCM7xxFIUState     fiu[2];
91 } NPCM7xxState;
92 
93 #define TYPE_NPCM7XX    "npcm7xx"
94 #define NPCM7XX(obj)    OBJECT_CHECK(NPCM7xxState, (obj), TYPE_NPCM7XX)
95 
96 #define TYPE_NPCM730    "npcm730"
97 #define TYPE_NPCM750    "npcm750"
98 
99 typedef struct NPCM7xxClass {
100     DeviceClass         parent;
101 
102     /* Bitmask of modules that are permanently disabled on this chip. */
103     uint32_t            disabled_modules;
104     /* Number of CPU cores enabled in this SoC class (may be 1 or 2). */
105     uint32_t            num_cpus;
106 } NPCM7xxClass;
107 
108 #define NPCM7XX_CLASS(klass)                                            \
109     OBJECT_CLASS_CHECK(NPCM7xxClass, (klass), TYPE_NPCM7XX)
110 #define NPCM7XX_GET_CLASS(obj)                                          \
111     OBJECT_GET_CLASS(NPCM7xxClass, (obj), TYPE_NPCM7XX)
112 
113 /**
114  * npcm7xx_load_kernel - Loads memory with everything needed to boot
115  * @machine - The machine containing the SoC to be booted.
116  * @soc - The SoC containing the CPU to be booted.
117  *
118  * This will set up the ARM boot info structure for the specific NPCM7xx
119  * derivative and call arm_load_kernel() to set up loading of the kernel, etc.
120  * into memory, if requested by the user.
121  */
122 void npcm7xx_load_kernel(MachineState *machine, NPCM7xxState *soc);
123 
124 #endif /* NPCM7XX_H */
125