xref: /openbmc/qemu/include/hw/arm/npcm7xx.h (revision 5e437d3c)
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/core/split-irq.h"
22 #include "hw/cpu/a9mpcore.h"
23 #include "hw/gpio/npcm7xx_gpio.h"
24 #include "hw/i2c/npcm7xx_smbus.h"
25 #include "hw/mem/npcm7xx_mc.h"
26 #include "hw/misc/npcm7xx_clk.h"
27 #include "hw/misc/npcm7xx_gcr.h"
28 #include "hw/misc/npcm7xx_mft.h"
29 #include "hw/misc/npcm7xx_pwm.h"
30 #include "hw/misc/npcm7xx_rng.h"
31 #include "hw/net/npcm7xx_emc.h"
32 #include "hw/nvram/npcm7xx_otp.h"
33 #include "hw/timer/npcm7xx_timer.h"
34 #include "hw/ssi/npcm7xx_fiu.h"
35 #include "hw/usb/hcd-ehci.h"
36 #include "hw/usb/hcd-ohci.h"
37 #include "target/arm/cpu.h"
38 
39 #define NPCM7XX_MAX_NUM_CPUS    (2)
40 
41 /* The first half of the address space is reserved for DDR4 DRAM. */
42 #define NPCM7XX_DRAM_BA         (0x00000000)
43 #define NPCM7XX_DRAM_SZ         (2 * GiB)
44 
45 /* Magic addresses for setting up direct kernel booting and SMP boot stubs. */
46 #define NPCM7XX_LOADER_START            (0x00000000)  /* Start of SDRAM */
47 #define NPCM7XX_SMP_LOADER_START        (0xffff0000)  /* Boot ROM */
48 #define NPCM7XX_SMP_BOOTREG_ADDR        (0xf080013c)  /* GCR.SCRPAD */
49 #define NPCM7XX_GIC_CPU_IF_ADDR         (0xf03fe100)  /* GIC within A9 */
50 #define NPCM7XX_BOARD_SETUP_ADDR        (0xffff1000)  /* Boot ROM */
51 
52 #define NPCM7XX_NR_PWM_MODULES 2
53 
54 typedef struct NPCM7xxMachine {
55     MachineState        parent;
56     /*
57      * PWM fan splitter. each splitter connects to one PWM output and
58      * multiple MFT inputs.
59      */
60     SplitIRQ            fan_splitter[NPCM7XX_NR_PWM_MODULES *
61                                      NPCM7XX_PWM_PER_MODULE];
62 } NPCM7xxMachine;
63 
64 #define TYPE_NPCM7XX_MACHINE MACHINE_TYPE_NAME("npcm7xx")
65 #define NPCM7XX_MACHINE(obj)                                            \
66     OBJECT_CHECK(NPCM7xxMachine, (obj), TYPE_NPCM7XX_MACHINE)
67 
68 typedef struct NPCM7xxMachineClass {
69     MachineClass        parent;
70 
71     const char          *soc_type;
72 } NPCM7xxMachineClass;
73 
74 #define NPCM7XX_MACHINE_CLASS(klass)                                    \
75     OBJECT_CLASS_CHECK(NPCM7xxMachineClass, (klass), TYPE_NPCM7XX_MACHINE)
76 #define NPCM7XX_MACHINE_GET_CLASS(obj)                                  \
77     OBJECT_GET_CLASS(NPCM7xxMachineClass, (obj), TYPE_NPCM7XX_MACHINE)
78 
79 typedef struct NPCM7xxState {
80     DeviceState         parent;
81 
82     ARMCPU              cpu[NPCM7XX_MAX_NUM_CPUS];
83     A9MPPrivState       a9mpcore;
84 
85     MemoryRegion        sram;
86     MemoryRegion        irom;
87     MemoryRegion        ram3;
88     MemoryRegion        *dram;
89 
90     NPCM7xxGCRState     gcr;
91     NPCM7xxCLKState     clk;
92     NPCM7xxTimerCtrlState tim[3];
93     NPCM7xxADCState     adc;
94     NPCM7xxPWMState     pwm[NPCM7XX_NR_PWM_MODULES];
95     NPCM7xxMFTState     mft[8];
96     NPCM7xxOTPState     key_storage;
97     NPCM7xxOTPState     fuse_array;
98     NPCM7xxMCState      mc;
99     NPCM7xxRNGState     rng;
100     NPCM7xxGPIOState    gpio[8];
101     NPCM7xxSMBusState   smbus[16];
102     EHCISysBusState     ehci;
103     OHCISysBusState     ohci;
104     NPCM7xxFIUState     fiu[2];
105     NPCM7xxEMCState     emc[2];
106 } NPCM7xxState;
107 
108 #define TYPE_NPCM7XX    "npcm7xx"
109 #define NPCM7XX(obj)    OBJECT_CHECK(NPCM7xxState, (obj), TYPE_NPCM7XX)
110 
111 #define TYPE_NPCM730    "npcm730"
112 #define TYPE_NPCM750    "npcm750"
113 
114 typedef struct NPCM7xxClass {
115     DeviceClass         parent;
116 
117     /* Bitmask of modules that are permanently disabled on this chip. */
118     uint32_t            disabled_modules;
119     /* Number of CPU cores enabled in this SoC class (may be 1 or 2). */
120     uint32_t            num_cpus;
121 } NPCM7xxClass;
122 
123 #define NPCM7XX_CLASS(klass)                                            \
124     OBJECT_CLASS_CHECK(NPCM7xxClass, (klass), TYPE_NPCM7XX)
125 #define NPCM7XX_GET_CLASS(obj)                                          \
126     OBJECT_GET_CLASS(NPCM7xxClass, (obj), TYPE_NPCM7XX)
127 
128 /**
129  * npcm7xx_load_kernel - Loads memory with everything needed to boot
130  * @machine - The machine containing the SoC to be booted.
131  * @soc - The SoC containing the CPU to be booted.
132  *
133  * This will set up the ARM boot info structure for the specific NPCM7xx
134  * derivative and call arm_load_kernel() to set up loading of the kernel, etc.
135  * into memory, if requested by the user.
136  */
137 void npcm7xx_load_kernel(MachineState *machine, NPCM7xxState *soc);
138 
139 #endif /* NPCM7XX_H */
140