imx: add necessary lpuart console_flush callback for debug
Current lpuart driver does NOT implement .console_flush callback,
if debug console is enabled, the console_flush() will call the
undefined .console_flush callback(NULL) for lpuart and leak to
panic, this patch adds .console_flush callback to make lpuart work
for debug mode.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
diff --git a/plat/imx/common/lpuart_console.S b/plat/imx/common/lpuart_console.S
index 668fd62..0162868 100644
--- a/plat/imx/common/lpuart_console.S
+++ b/plat/imx/common/lpuart_console.S
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -15,6 +15,7 @@
.globl console_lpuart_init
.globl console_lpuart_putc
.globl console_lpuart_getc
+ .globl console_lpuart_flush
func console_lpuart_register
mov x7, x30
@@ -27,7 +28,7 @@
mov x0, x6
mov x30, x7
- finish_console_register lpuart putc=1, getc=1
+ finish_console_register lpuart putc=1, getc=1, flush=1
register_fail:
ret x7
@@ -70,3 +71,8 @@
mov w0, #-1
ret
endfunc console_lpuart_getc
+
+func console_lpuart_flush
+ mov x0, #0
+ ret
+endfunc console_lpuart_flush