src/mainboard/emulation/qemu-power8/uart.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <types.h>
   4 #include <console/uart.h>
   5 #include <boot/coreboot_tables.h>
   6
   7 static uint8_t *buf = (void *)0;
   8 uintptr_t uart_platform_base(unsigned int idx)
   9 {
  10         return (uintptr_t)buf;
  11 }
  12
  13 void uart_init(unsigned int idx)
  14 {
  15 }
  16
  17 unsigned char uart_rx_byte(unsigned int idx)
  18 {
  19         return 0;
  20 }
  21
  22 void uart_tx_byte(unsigned int idx, unsigned char data)
  23 {
  24 }
  25
  26 void uart_tx_flush(unsigned int idx)
  27 {
  28 }
  29
  30 enum cb_err fill_lb_serial(struct lb_serial *serial)
  31 {
  32         serial->type = LB_SERIAL_TYPE_MEMORY_MAPPED;
  33         serial->baseaddr = 0;
  34         serial->baud = 115200;
  35         serial->regwidth = 1;
  36         serial->input_hertz = uart_platform_refclk();
  37
  38         return CB_SUCCESS;
  39 }