diff options
Diffstat (limited to 'src/drivers/uart/pl011.c')
| -rw-r--r-- | src/drivers/uart/pl011.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/drivers/uart/pl011.c b/src/drivers/uart/pl011.c index 415dce13bc..9cb702f952 100644 --- a/src/drivers/uart/pl011.c +++ b/src/drivers/uart/pl011.c @@ -42,7 +42,11 @@ void uart_tx_flush(int idx) unsigned char uart_rx_byte(int idx) { - return 0; + struct pl011_uart *regs = uart_platform_baseptr(idx); + + while (read32(®s->fr) & PL011_UARTFR_RXFE) + ; + return read8(®s->dr); } #ifndef __PRE_RAM__ |