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| author | br <br@FreeBSD.org> | 2014-06-01 07:34:54 +0000 |
|---|---|---|
| committer | br <br@FreeBSD.org> | 2014-06-01 07:34:54 +0000 |
| commit | caf73c4db95fba430ead2b5a7be90945e30e2b37 (patch) | |
| tree | e6683132ab3f6856cc58f181d8c57e4923771216 /sys/arm/samsung | |
| parent | cc47b6d9479ebc0469f422069b78a7e89bdbc128 (diff) | |
| download | FreeBSD-src-caf73c4db95fba430ead2b5a7be90945e30e2b37.zip FreeBSD-src-caf73c4db95fba430ead2b5a7be90945e30e2b37.tar.gz | |
Do only receive chars if there are some data in the buffer.
This fixes operation on newer Exynos boards.
Diffstat (limited to 'sys/arm/samsung')
| -rw-r--r-- | sys/arm/samsung/exynos/uart.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/arm/samsung/exynos/uart.c b/sys/arm/samsung/exynos/uart.c index eef99ff..0fd9e39 100644 --- a/sys/arm/samsung/exynos/uart.c +++ b/sys/arm/samsung/exynos/uart.c @@ -286,8 +286,13 @@ s3c2410_bus_setsig(struct uart_softc *sc, int sig) static int s3c2410_bus_receive(struct uart_softc *sc) { + struct uart_bas *bas; + + bas = &sc->sc_bas; + while (bus_space_read_4(bas->bst, bas->bsh, + SSCOM_UFSTAT) & UFSTAT_RXCOUNT) + uart_rx_put(sc, uart_getreg(&sc->sc_bas, SSCOM_URXH)); - uart_rx_put(sc, uart_getreg(&sc->sc_bas, SSCOM_URXH)); return (0); } |
