blob: b671fec7472c36f4d99e1549bac041a444524dac (
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
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/uart.h>
#include <gpio.h>
#include <types.h>
#include <boot/coreboot_tables.h>
#define UART_TX_PIN GPIO(44)
void uart_fill_lb(void *data)
{
}
static void set_tx(int line_state)
{
gpio_set(UART_TX_PIN, line_state);
}
void uart_init(int idx)
{
gpio_output(UART_TX_PIN, 1);
}
void uart_tx_byte(int idx, unsigned char data)
{
uart_bitbang_tx_byte(data, set_tx);
}
void uart_tx_flush(int idx)
{
/* unnecessary, PIO Tx means transaction is over when tx_byte returns */
}
unsigned char uart_rx_byte(int idx)
{
return 0; /* not implemented */
}
|
