qemu/vexpress-a9: Discover RAM size.

Probe RAM to find its size instead of hardcoding 1024M.
Also properly export it to memory map.

Change-Id: Ib411f0a068bd247a9e0cd0a59689a3896921483e
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: https://review.coreboot.org/13754
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

1 files changed, 40 insertions, 0 deletions

diff --git a/src/mainboard/emulation/qemu-armv7/mainboard.c b/src/mainboard/emulation/qemu-armv7/mainboard.c
new file mode 100644
index 0000000000..eced9ae3b9
--- /dev/null
+++ b/src/mainboard/emulation/qemu-armv7/mainboard.c
@@ -0,0 +1,40 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2016 Vladimir Serbinenko <phcoder@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 or, at your option, any later
+ * version of the License.
+ *
+ * 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 <console/console.h>
+#include <device/device.h>
+#include <cbmem.h>
+#include <string.h>
+#include <halt.h>
+#include "mainboard.h"
+
+static void mainboard_enable(device_t dev)
+{
+	int discovered;
+	if (!dev) {
+		printk(BIOS_EMERG, "No dev0; die\n");
+		halt();
+	}
+
+	discovered = probe_ramsize();
+	printk(BIOS_DEBUG, "%d MiB of RAM discovered\n", discovered);
+	ram_resource(dev, 0, 0x60000000 >> 10, discovered << 10);
+	cbmem_recovery(0);
+}
+
+struct chip_operations mainboard_ops = {
+	.enable_dev = mainboard_enable,
+};