mirror of
https://github.com/riscv-software-src/opensbi
synced 2025-11-03 21:48:45 +00:00
76a89403c8
We add simple serial framework which will select and use serial driver based on details in FDT passed by previous booting stage. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
39 lines
877 B
C
39 lines
877 B
C
/*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 2020 Western Digital Corporation or its affiliates.
|
|
*
|
|
* Authors:
|
|
* Anup Patel <anup.patel@wdc.com>
|
|
*/
|
|
|
|
#include <sbi_utils/fdt/fdt_helper.h>
|
|
#include <sbi_utils/serial/fdt_serial.h>
|
|
#include <sbi_utils/serial/sifive-uart.h>
|
|
|
|
static int serial_sifive_init(void *fdt, int nodeoff,
|
|
const struct fdt_match *match)
|
|
{
|
|
int rc;
|
|
struct platform_uart_data uart;
|
|
|
|
rc = fdt_parse_sifive_uart_node(fdt, nodeoff, &uart);
|
|
if (rc)
|
|
return rc;
|
|
|
|
return sifive_uart_init(uart.addr, uart.freq, uart.baud);
|
|
}
|
|
|
|
static const struct fdt_match serial_sifive_match[] = {
|
|
{ .compatible = "sifive,fu540-c000-uart" },
|
|
{ .compatible = "sifive,uart0" },
|
|
{ },
|
|
};
|
|
|
|
struct fdt_serial fdt_serial_sifive = {
|
|
.match_table = serial_sifive_match,
|
|
.init = serial_sifive_init,
|
|
.getc = sifive_uart_getc,
|
|
.putc = sifive_uart_putc
|
|
};
|