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hw/char: QOMify sifive_uart

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This QOMifies the SiFive UART model. Migration and reset have been
implemented.

Signed-off-by: Lukas Jünger <lukas.juenger@greensocs.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210616092326.59639-3-lukas.juenger@greensocs.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Lukas Jünger 2021-06-16 11:23:26 +02:00 • committed by Alistair Francis
parent 244a9fcb31
commit 6ee7ba1b8a
2 changed files with 109 additions and 16 deletions
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11
include/hw/char/sifive_uart.h
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@ -21,6 +21,7 @@
#define HW_SIFIVE_UART_H
#include "chardev/char-fe.h"
#include "hw/qdev-properties.h"
#include "hw/sysbus.h"
#include "qom/object.h"
@ -49,12 +50,10 @@ enum {
#define SIFIVE_UART_GET_TXCNT(txctrl) ((txctrl >> 16) & 0x7)
#define SIFIVE_UART_GET_RXCNT(rxctrl) ((rxctrl >> 16) & 0x7)
#define SIFIVE_UART_RX_FIFO_SIZE 8
#define TYPE_SIFIVE_UART "riscv.sifive.uart"
typedef struct SiFiveUARTState SiFiveUARTState;
DECLARE_INSTANCE_CHECKER(SiFiveUARTState, SIFIVE_UART,
TYPE_SIFIVE_UART)
OBJECT_DECLARE_SIMPLE_TYPE(SiFiveUARTState, SIFIVE_UART)
struct SiFiveUARTState {
/*< private >*/
@ -64,8 +63,8 @@ struct SiFiveUARTState {
qemu_irq irq;
MemoryRegion mmio;
CharBackend chr;
uint8_t rx_fifo[8];
unsigned int rx_fifo_len;
uint8_t rx_fifo[SIFIVE_UART_RX_FIFO_SIZE];
uint8_t rx_fifo_len;
uint32_t ie;
uint32_t ip;
uint32_t txctrl;