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>

1 files changed, 116 insertions, 0 deletions

diff --git a/src/mainboard/emulation/qemu-armv7/Kconfig b/src/mainboard/emulation/qemu-armv7/Kconfig
new file mode 100644
index 000000000000..38b1da249ac4
--- /dev/null
+++ b/src/mainboard/emulation/qemu-armv7/Kconfig
@@ -0,0 +1,116 @@
+##
+## 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.
+
+# Emulation for ARM Ltd Versatile Express Cortex-A9
+#  http://www.arm.com/products/tools/development-boards/versatile-express
+
+# To execute, do:
+# export QEMU_AUDIO_DRV=none
+# qemu-system-arm -M vexpress-a9 -m 1024M -nographic -kernel build/coreboot.rom
+
+if BOARD_EMULATION_QEMU_ARMV7
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+	select ARCH_ARMV7
+	select CPU_ARMLTD_CORTEX_A9
+	select DEFAULT_EARLY_CONSOLE
+	select HAVE_UART_SPECIAL
+	select BOARD_ROMSIZE_KB_4096
+
+config MAINBOARD_DIR
+	string
+	default emulation/qemu-armv7
+
+config MAINBOARD_PART_NUMBER
+	string
+	default "QEMU ARMV7"
+
+config MAX_CPUS
+	int
+	default 2
+
+config MAINBOARD_VENDOR
+	string
+	default "ARM Ltd."
+
+config BOOTBLOCK_MAINBOARD_INIT
+	string
+	default "mainboard/emulation/qemu-armv7/bootblock.c"
+
+config DRAM_SIZE_MB
+	int
+	default 1024
+
+# Memory map for qemu vexpress-a9:
+#
+# 0x0000_0000: jump instruction (by qemu)
+# 0x0001_0000: bootblock (entry of kernel / firmware)
+# 0x0002_0000: romstage, assume up to 128KB in size.
+# 0x0007_ff00: stack pointer
+# 0x0010_0000: CBFS header
+# 0x0011_0000: CBFS data
+# 0x0100_0000: reserved for ramstage
+# 0x1000_0000: I/O map address
+
+config BOOTBLOCK_BASE
+	hex
+	default 0x00010000
+
+config ID_SECTION_BASE
+	hex
+	default 0x0001f000
+
+config ROMSTAGE_BASE
+	hex
+	default 0x00020000
+
+config ROMSTAGE_SIZE
+	hex
+	default 0x20000
+
+config CBFS_HEADER_ROM_OFFSET
+	hex
+	default 0x0100000
+
+config CBFS_ROM_OFFSET
+	hex
+	default 0x0110000
+
+config IRAM_STACK
+	hex
+	default 0x0007ff00
+
+config XIP_ROM_SIZE
+	hex
+	default ROMSTAGE_SIZE
+
+config SYS_SDRAM_BASE
+	hex "SDRAM base address"
+	default 0x01000000
+
+config SYS_TEXT_BASE
+	hex "Executable code section"
+	default 0x04e00000
+
+config RAMBASE
+	hex
+	default SYS_SDRAM_BASE
+
+# according to stefan, this is RAMBASE + 1M.
+config RAMTOP
+	hex
+	default 0x01100000
+
+endif #  BOARD_EMULATION_QEMU_ARMV7