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authorHung-Te Lin <hungte@chromium.org>2013-02-12 00:07:38 +0800
committerRonald G. Minnich <rminnich@gmail.com>2013-02-12 03:02:45 +0100
commit7635a60ca848b50ff4a0ac85a667adc7151a5abf (patch)
tree42d7db8bd1c1bcacd5d1c4d2b70ca0b8ad3a6da5 /src/mainboard/emulation/qemu-armv7/media.c
parentbc64cae995ddab369289e19b41501df5dbc58751 (diff)
armv7: Add emulation/qemu-armv7 board.
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>
Diffstat (limited to 'src/mainboard/emulation/qemu-armv7/media.c')
-rw-r--r--src/mainboard/emulation/qemu-armv7/media.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/src/mainboard/emulation/qemu-armv7/media.c b/src/mainboard/emulation/qemu-armv7/media.c
new file mode 100644
index 0000000000..d024b5d340
--- /dev/null
+++ b/src/mainboard/emulation/qemu-armv7/media.c
@@ -0,0 +1,57 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ */
+#include <cbfs.h>
+#include <string.h>
+#include <console/console.h>
+
+/* Simple memory-mapped ROM emulation. */
+
+static int emu_rom_open(struct cbfs_media *media) {
+ return 0;
+}
+
+static void *emu_rom_map(struct cbfs_media *media, size_t offset, size_t count) {
+ return (void*)(offset + CONFIG_BOOTBLOCK_BASE);
+}
+
+static void *emu_rom_unmap(struct cbfs_media *media, const void *address) {
+ return NULL;
+}
+
+static size_t emu_rom_read(struct cbfs_media *media, void *dest, size_t offset,
+ size_t count) {
+ void *ptr = emu_rom_map(media, offset, count);
+ memcpy(dest, ptr, count);
+ emu_rom_unmap(media, ptr);
+ return count;
+}
+
+static int emu_rom_close(struct cbfs_media *media) {
+ return 0;
+}
+
+int init_emu_rom_cbfs_media(struct cbfs_media *media);
+int init_emu_rom_cbfs_media(struct cbfs_media *media) {
+ media->open = emu_rom_open;
+ media->close = emu_rom_close;
+ media->map = emu_rom_map;
+ media->unmap = emu_rom_unmap;
+ media->read = emu_rom_read;
+ return 0;
+}
+
+int init_default_cbfs_media(struct cbfs_media *media) {
+ return init_emu_rom_cbfs_media(media);
+}