star64: Fix auto-CR in serial driver

Output '\r\n' instead of '\n\r'. Signed-off-by: Jimmy Brush <[email protected]>
seL4 · Aug 22, 2023 · bfeda95 · bfeda95
1 parent ed77adf
commit bfeda95
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/libplatsupport/src/plat/star64/serial.c b/libplatsupport/src/plat/star64/serial.c
@@ -24,13 +24,14 @@ int uart_getchar(ps_chardevice_t *d)
 
 int uart_putchar(ps_chardevice_t *d, int c)
 {
+    if (c == '\n' && (d->flags & SERIAL_AUTO_CR)) {
+        uart_putchar(d, '\r');
+    }
+
     while ((*REG_PTR(d->vaddr, UART_LSR) & UART_LSR_THRE) == 0);
 
     /* Add character to the buffer. */
     *REG_PTR(d->vaddr, UART_THR) = c & 0x7f;
-    if (c == '\n' && (d->flags & SERIAL_AUTO_CR)) {
-        uart_putchar(d, '\r');
-    }
 
     return c;
 }