soc/intel/quark: Add SD/MMC test support

The SD/MMC test support consists of:

* Add Kconfig value to enable the SD/MMC test support.
* Add Kconfig value to enable the logging support.
* Add SD/MMC controller init code and read block 0 from each partition.
* Add logging code to snapshot the transactions with the SD/MMC device.
* Add eMMC driver for ramstage to call test code.
* Add romstage code to call test code.
* Add bootblock code to call test code.

TEST=Build and run on Galileo Gen2

Change-Id: I72785f0dcd466c05c1385cef166731219b583551
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/19211
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/src/soc/intel/quark/sd.c b/src/soc/intel/quark/sd.c
new file mode 100644
index 0000000..7b96001
--- /dev/null
+++ b/src/soc/intel/quark/sd.c
@@ -0,0 +1,50 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2017 Intel Corporation
+ *
+ * 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 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 <arch/io.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/sdhci.h>
+#include <device/storage.h>
+#include <soc/storage_test.h>
+
+static void init(struct device *dev)
+{
+	/* Run the SD test */
+	if (IS_ENABLED(CONFIG_STORAGE_TEST)) {
+		uint32_t bar;
+		uint32_t previous_bar;
+		uint16_t previous_command;
+
+		bar = storage_test_init(dev, &previous_bar, &previous_command);
+		storage_test(bar, 0);
+		storage_test_complete(dev, previous_bar, previous_command);
+	}
+}
+
+static const struct device_operations device_ops = {
+	.read_resources		= pci_dev_read_resources,
+	.set_resources		= pci_dev_set_resources,
+	.enable_resources	= pci_dev_enable_resources,
+	.init			= init,
+};
+
+static const struct pci_driver pmc __pci_driver = {
+	.ops	= &device_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x08A7,
+};