blob: 961ddc56d465c8cb2a4369ac60411ec476a4020d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/*
* This file is part of the coreboot project.
*
* Copyright 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc.
*/
#include <types.h>
#include <console/uart.h>
#include <arch/io.h>
#include <boot/coreboot_tables.h>
#include <spike_util.h>
static uint8_t *buf = (void *)0x3f8;
uintptr_t uart_platform_base(int idx)
{
return (uintptr_t) buf;
}
void uart_init(int idx)
{
}
unsigned char uart_rx_byte(int idx)
{
return *buf; // this does not work on spike, requires more implementation details
}
void uart_tx_byte(int idx, unsigned char data)
{
mcall_console_putchar(data);
}
void uart_tx_flush(int idx)
{
}
#ifndef __PRE_RAM__
void uart_fill_lb(void *data)
{
struct lb_serial serial;
serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED;
serial.baseaddr = 0x3f8;
serial.baud = 115200;
serial.regwidth = 1;
lb_add_serial(&serial, data);
lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, data);
}
#endif
|
