xref: /openbmc/qemu/include/hw/misc/stm32l4x5_syscfg.h (revision f774a677507966222624a9b2859f06ede7608100)
1  /*
2   * STM32L4x5 SYSCFG (System Configuration Controller)
3   *
4   * Copyright (c) 2023 Arnaud Minier <arnaud.minier@telecom-paris.fr>
5   * Copyright (c) 2023 Inès Varhol <ines.varhol@telecom-paris.fr>
6   *
7   * SPDX-License-Identifier: GPL-2.0-or-later
8   *
9   * This work is licensed under the terms of the GNU GPL, version 2 or later.
10   * See the COPYING file in the top-level directory.
11   *
12   * This work is based on the stm32f4xx_syscfg by Alistair Francis.
13   * Original code is licensed under the MIT License:
14   *
15   * Copyright (c) 2014 Alistair Francis <alistair@alistair23.me>
16   */
17  
18  /*
19   * The reference used is the STMicroElectronics RM0351 Reference manual
20   * for STM32L4x5 and STM32L4x6 advanced Arm ® -based 32-bit MCUs.
21   * https://www.st.com/en/microcontrollers-microprocessors/stm32l4x5/documentation.html
22   */
23  
24  #ifndef HW_STM32L4X5_SYSCFG_H
25  #define HW_STM32L4X5_SYSCFG_H
26  
27  #include "hw/sysbus.h"
28  #include "qom/object.h"
29  #include "hw/gpio/stm32l4x5_gpio.h"
30  
31  #define TYPE_STM32L4X5_SYSCFG "stm32l4x5-syscfg"
32  OBJECT_DECLARE_SIMPLE_TYPE(Stm32l4x5SyscfgState, STM32L4X5_SYSCFG)
33  
34  #define SYSCFG_NUM_EXTICR 4
35  
36  struct Stm32l4x5SyscfgState {
37      SysBusDevice parent_obj;
38  
39      MemoryRegion mmio;
40  
41      uint32_t memrmp;
42      uint32_t cfgr1;
43      uint32_t exticr[SYSCFG_NUM_EXTICR];
44      uint32_t scsr;
45      uint32_t cfgr2;
46      uint32_t swpr;
47      uint32_t skr;
48      uint32_t swpr2;
49  
50      qemu_irq gpio_out[GPIO_NUM_PINS];
51      Clock *clk;
52  };
53  
54  #endif
55