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hw/char: Add Microchip PolarFire SoC MMUART emulation

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Microchip PolarFire SoC MMUART is ns16550 compatible, with some
additional registers. Create a simple MMUART model built on top
of the existing ns16550 model.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <1598924352-89526-6-git-send-email-bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Bin Meng 2020-09-01 09:39:00 +08:00 • committed by Alistair Francis
parent 56f6e31e7b
commit a8fb0a500a
5 changed files with 153 additions and 0 deletions
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61
include/hw/char/mchp_pfsoc_mmuart.h Normal file
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/*
* Microchip PolarFire SoC MMUART emulation
*
* Copyright (c) 2020 Wind River Systems, Inc.
*
* Author:
* Bin Meng <bin.meng@windriver.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef HW_MCHP_PFSOC_MMUART_H
#define HW_MCHP_PFSOC_MMUART_H
#include "hw/char/serial.h"
#define MCHP_PFSOC_MMUART_REG_SIZE 52
typedef struct MchpPfSoCMMUartState {
MemoryRegion iomem;
hwaddr base;
qemu_irq irq;
SerialMM *serial;
uint32_t reg[MCHP_PFSOC_MMUART_REG_SIZE / sizeof(uint32_t)];
} MchpPfSoCMMUartState;
/**
* mchp_pfsoc_mmuart_create - Create a Microchip PolarFire SoC MMUART
*
* This is a helper routine for board to create a MMUART device that is
* compatible with Microchip PolarFire SoC.
*
* @sysmem: system memory region to map
* @base: base address of the MMUART registers
* @irq: IRQ number of the MMUART device
* @chr: character device to associate to
*
* @return: a pointer to the device specific control structure
*/
MchpPfSoCMMUartState *mchp_pfsoc_mmuart_create(MemoryRegion *sysmem,
hwaddr base, qemu_irq irq, Chardev *chr);
#endif /* HW_MCHP_PFSOC_MMUART_H */