diff options
Diffstat (limited to 'hw/riscv/sifive_uart.c')
| -rw-r--r-- | hw/riscv/sifive_uart.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/hw/riscv/sifive_uart.c b/hw/riscv/sifive_uart.c index 456a3d3697..3b3f94f51d 100644 --- a/hw/riscv/sifive_uart.c +++ b/hw/riscv/sifive_uart.c @@ -51,7 +51,8 @@ static uint64_t uart_ip(SiFiveUARTState *s) static void update_irq(SiFiveUARTState *s) { int cond = 0; - if ((s->ie & SIFIVE_UART_IE_RXWM) && s->rx_fifo_len) { + if ((s->ie & SIFIVE_UART_IE_TXWM) || + ((s->ie & SIFIVE_UART_IE_RXWM) && s->rx_fifo_len)) { cond = 1; } if (cond) { @@ -108,6 +109,7 @@ uart_write(void *opaque, hwaddr addr, switch (addr) { case SIFIVE_UART_TXFIFO: qemu_chr_fe_write(&s->chr, &ch, 1); + update_irq(s); return; case SIFIVE_UART_IE: s->ie = val64; |