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hw/arm/digic: add UART support

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Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1387188908-754-5-git-send-email-antonynpavlov@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Antony Pavlov 2013-12-17 19:42:37 +00:00 • committed by Peter Maydell
parent 576e99cb95
commit 142593c9d7
5 changed files with 261 additions and 0 deletions
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2
include/hw/arm/digic.h
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@ -21,6 +21,7 @@
#include "cpu.h"
#include "hw/timer/digic-timer.h"
#include "hw/char/digic-uart.h"
#define TYPE_DIGIC "digic"
@ -36,6 +37,7 @@ typedef struct DigicState {
ARMCPU cpu;
DigicTimerState timer[DIGIC4_NB_TIMERS];
DigicUartState uart;
} DigicState;
#endif /* HW_ARM_DIGIC_H */

47
include/hw/char/digic-uart.h Normal file
View file

@ -0,0 +1,47 @@
/*
* Canon DIGIC UART block declarations.
*
* Copyright (C) 2013 Antony Pavlov <antonynpavlov@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef HW_CHAR_DIGIC_UART_H
#define HW_CHAR_DIGIC_UART_H
#include "hw/sysbus.h"
#include "qemu/typedefs.h"
#define TYPE_DIGIC_UART "digic-uart"
#define DIGIC_UART(obj) \
OBJECT_CHECK(DigicUartState, (obj), TYPE_DIGIC_UART)
enum {
R_TX = 0x00,
R_RX,
R_ST = (0x14 >> 2),
R_MAX
};
typedef struct DigicUartState {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
MemoryRegion regs_region;
CharDriverState *chr;
uint32_t reg_rx;
uint32_t reg_st;
} DigicUartState;
#endif /* HW_CHAR_DIGIC_UART_H */