From: Philippe Mathieu-Daudé <phi...@redhat.com>
When the device is disabled, the internal circuitry keeps the data
register loaded and doesn't update it.
Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com>
Reviewed-by: Alistair Francis <alistair.fran...@wdc.com>
Message-id: 20190104182057.8778-1-phi...@redhat.com
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
hw/char/stm32f2xx_usart.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/hw/char/stm32f2xx_usart.c b/hw/char/stm32f2xx_usart.c
index f3363a2952d..10392c70e2d 100644
--- a/hw/char/stm32f2xx_usart.c
+++ b/hw/char/stm32f2xx_usart.c
@@ -53,14 +53,13 @@ static void stm32f2xx_usart_receive(void *opaque, const
uint8_t *buf, int size)
{
STM32F2XXUsartState *s = opaque;
- s->usart_dr = *buf;
-
if (!(s->usart_cr1 & USART_CR1_UE && s->usart_cr1 & USART_CR1_RE)) {
/* USART not enabled - drop the chars */
DB_PRINT("Dropping the chars\n");
return;
}
+ s->usart_dr = *buf;
s->usart_sr |= USART_SR_RXNE;
if (s->usart_cr1 & USART_CR1_RXNEIE) {
--
2.20.1
