diff options
Diffstat (limited to 'MdeModulePkg/Library/BaseSerialPortLib16550/BaseSerialPortLib16550.c')
| -rw-r--r-- | MdeModulePkg/Library/BaseSerialPortLib16550/BaseSerialPortLib16550.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/MdeModulePkg/Library/BaseSerialPortLib16550/BaseSerialPortLib16550.c b/MdeModulePkg/Library/BaseSerialPortLib16550/BaseSerialPortLib16550.c index bbae379887..9cb50dd80d 100644 --- a/MdeModulePkg/Library/BaseSerialPortLib16550/BaseSerialPortLib16550.c +++ b/MdeModulePkg/Library/BaseSerialPortLib16550/BaseSerialPortLib16550.c @@ -646,7 +646,7 @@ SerialPortWrite ( // Wait for the serial port to be ready, to make sure both the transmit FIFO
// and shift register empty.
//
- while ((SerialPortReadRegister (SerialRegisterBase, R_UART_LSR) & B_UART_LSR_TEMT) == 0);
+ while ((SerialPortReadRegister (SerialRegisterBase, R_UART_LSR) & (B_UART_LSR_TEMT | B_UART_LSR_TXRDY)) != (B_UART_LSR_TEMT | B_UART_LSR_TXRDY));
//
// Fill then entire Tx FIFO
|