1 /*
2  * Microchip PolarFire SoC MMUART emulation
3  *
4  * Copyright (c) 2020 Wind River Systems, Inc.
5  *
6  * Author:
7  *   Bin Meng <bin.meng@windriver.com>
8  *
9  * Permission is hereby granted, free of charge, to any person obtaining a copy
10  * of this software and associated documentation files (the "Software"), to deal
11  * in the Software without restriction, including without limitation the rights
12  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13  * copies of the Software, and to permit persons to whom the Software is
14  * furnished to do so, subject to the following conditions:
15  *
16  * The above copyright notice and this permission notice shall be included in
17  * all copies or substantial portions of the Software.
18  *
19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25  * THE SOFTWARE.
26  */
27 
28 #ifndef HW_MCHP_PFSOC_MMUART_H
29 #define HW_MCHP_PFSOC_MMUART_H
30 
31 #include "hw/sysbus.h"
32 #include "hw/char/serial.h"
33 
34 #define MCHP_PFSOC_MMUART_REG_COUNT 13
35 
36 #define TYPE_MCHP_PFSOC_UART "mchp.pfsoc.uart"
37 OBJECT_DECLARE_SIMPLE_TYPE(MchpPfSoCMMUartState, MCHP_PFSOC_UART)
38 
39 typedef struct MchpPfSoCMMUartState {
40     /*< private >*/
41     SysBusDevice parent_obj;
42 
43     /*< public >*/
44     MemoryRegion container;
45     MemoryRegion iomem;
46 
47     SerialMM serial_mm;
48 
49     uint32_t reg[MCHP_PFSOC_MMUART_REG_COUNT];
50 } MchpPfSoCMMUartState;
51 
52 /**
53  * mchp_pfsoc_mmuart_create - Create a Microchip PolarFire SoC MMUART
54  *
55  * This is a helper routine for board to create a MMUART device that is
56  * compatible with Microchip PolarFire SoC.
57  *
58  * @sysmem: system memory region to map
59  * @base: base address of the MMUART registers
60  * @irq: IRQ number of the MMUART device
61  * @chr: character device to associate to
62  *
63  * @return: a pointer to the device specific control structure
64  */
65 MchpPfSoCMMUartState *mchp_pfsoc_mmuart_create(MemoryRegion *sysmem,
66     hwaddr base, qemu_irq irq, Chardev *chr);
67 
68 #endif /* HW_MCHP_PFSOC_MMUART_H */
69