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https://github.com/fail0verflow/switch-coreboot.git
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7635a60ca8
To simplify testing ARM implementation, we need a QEMU configuration for ARM. The qemu-armv7 provides serial output, CBFS simulation, and full boot path (bootblock, romstage, ramstage) to verify the boot loader functionality. To run with QEMU: export QEMU_AUDIO_DRV=none qemu-system-arm -M vexpress-a9 -m 1024M -nographic -kernel build/coreboot.rom Verified to boot until ramstage loaded successfully by QEMU v1.0.50. Change-Id: I1f23ffaf408199811a0756236821c7e0f2a85004 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/2354 Reviewed-by: David Hendricks <dhendrix@chromium.org> Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2013 Google, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <console/console.h>
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#include <uart.h>
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#define VEXPRESS_UART0_IO_ADDRESS (0x10009000)
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static void pl011_init_dev(void) {
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}
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static void pl011_uart_tx_byte(unsigned char data) {
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static volatile unsigned int *uart0_address =
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(unsigned int *)VEXPRESS_UART0_IO_ADDRESS;
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*uart0_address = (unsigned int)data;
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}
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static void pl011_uart_tx_flush(void) {
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}
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#if !defined(__PRE_RAM__)
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static const struct console_driver pl011_uart_console __console = {
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.init = pl011_init_dev,
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.tx_byte = pl011_uart_tx_byte,
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.tx_flush = pl011_uart_tx_flush,
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};
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#else
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void uart_init(void)
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{
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pl011_init_dev();
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}
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void uart_tx_byte(unsigned char data)
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{
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pl011_uart_tx_byte(data);
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}
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void uart_tx_flush(void) {
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pl011_uart_tx_flush();
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}
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#endif
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