diff options
Diffstat (limited to 'drivers/ti/uart/aarch64/16550_console.S')
| -rw-r--r-- | drivers/ti/uart/aarch64/16550_console.S | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/ti/uart/aarch64/16550_console.S b/drivers/ti/uart/aarch64/16550_console.S index 84664829..489fcbea 100644 --- a/drivers/ti/uart/aarch64/16550_console.S +++ b/drivers/ti/uart/aarch64/16550_console.S @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -35,6 +35,7 @@ .globl console_core_init .globl console_core_putc .globl console_core_getc + .globl console_core_flush /* ----------------------------------------------- * int console_core_init(unsigned long base_addr, @@ -153,3 +154,18 @@ getc_error: mov w0, #-1 ret endfunc console_core_getc + + /* --------------------------------------------- + * int console_core_flush(uintptr_t base_addr) + * Function to force a write of all buffered + * data that hasn't been output. + * In : x0 - console base address + * Out : return -1 on error else return 0. + * Clobber list : x0, x1 + * --------------------------------------------- + */ +func console_core_flush + /* Placeholder */ + mov w0, #0 + ret +endfunc console_core_flush |