diff options
Diffstat (limited to 'plat/imx/common/aarch32')
| -rw-r--r-- | plat/imx/common/aarch32/imx_uart_console.S | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/plat/imx/common/aarch32/imx_uart_console.S b/plat/imx/common/aarch32/imx_uart_console.S new file mode 100644 index 0000000..1a1229a --- /dev/null +++ b/plat/imx/common/aarch32/imx_uart_console.S @@ -0,0 +1,50 @@ +/* + * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <arch.h> +#include <asm_macros.S> +#include <console_macros.S> +#include <assert_macros.S> +#include "imx_uart.h" + + .globl console_imx_uart_register + .globl console_imx_uart_putc + .globl console_imx_uart_getc + .globl console_imx_uart_flush + +func console_imx_uart_register + push {r4, lr} + mov r4, r3 + cmp r4, #0 + beq register_fail + str r0, [r4, #CONSOLE_T_BASE] + + bl console_imx_uart_core_init + cmp r0, #0 + bne register_fail + + mov r0, r4 + pop {r4, lr} + finish_console_register imx_uart putc=1, getc=1, flush=1 + +register_fail: + pop {r4, pc} +endfunc console_imx_uart_register + +func console_imx_uart_putc + ldr r1, [r1, #CONSOLE_T_BASE] + b console_imx_uart_core_putc +endfunc console_imx_uart_putc + +func console_imx_uart_getc + ldr r0, [r0, #CONSOLE_T_BASE] + b console_imx_uart_core_getc +endfunc console_imx_uart_getc + +func console_imx_uart_flush + ldr r0, [r0, #CONSOLE_T_BASE] + b console_imx_uart_core_flush +endfunc console_imx_uart_flush |