36 lines
853 B
C
36 lines
853 B
C
/*
|
|
* Copyright (c) 2018 Synopsys, Inc. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <device.h>
|
|
#include <init.h>
|
|
#include "soc.h"
|
|
|
|
|
|
#ifdef CONFIG_UART_NS16550
|
|
|
|
static int uart_ns16550_init(struct device *dev)
|
|
{
|
|
ARG_UNUSED(dev);
|
|
|
|
/* On ARC EM Starter kit board,
|
|
* send the UART the command to clear the interrupt
|
|
*/
|
|
#ifdef CONFIG_UART_NS16550_PORT_0
|
|
sys_write32(0, DT_UART_NS16550_PORT_0_BASE_ADDR+0x4);
|
|
sys_write32(0, DT_UART_NS16550_PORT_0_BASE_ADDR+0x10);
|
|
#endif /* CONFIG_UART_NS16550_PORT_0 */
|
|
#ifdef CONFIG_UART_NS16550_PORT_1
|
|
sys_write32(0, DT_UART_NS16550_PORT_1_BASE_ADDR+0x4);
|
|
sys_write32(0, DT_UART_NS16550_PORT_1_BASE_ADDR+0x10);
|
|
#endif /* CONFIG_UART_NS16550_PORT_1 */
|
|
|
|
return 0;
|
|
}
|
|
|
|
SYS_INIT(uart_ns16550_init, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
|
|
|
|
#endif /* CONFIG_UART_NS16550 */
|