soc/intel/denverton_ns: Add support for Intel Atom C3000 SoC
This change adds support for Intel Atom C3000 SoC
("Denverton" and "Denverton-NS").
Code is partially based on Apollo Lake/Skylake code.
Change-Id: I53d69aede3b92f1fe06b74a96cc40187fb9825f1
Signed-off-by: Mariusz Szafranski <mariuszx.szafranski@intel.com>
Reviewed-on: https://review.coreboot.org/20861
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: FEI WANG <wangfei.jimei@gmail.com>
diff --git a/src/soc/intel/denverton_ns/xhci.c b/src/soc/intel/denverton_ns/xhci.c
new file mode 100644
index 0000000..5f8482e
--- /dev/null
+++ b/src/soc/intel/denverton_ns/xhci.c
@@ -0,0 +1,51 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 - 2017 Intel Corp.
+ *
+ * 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 <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <arch/io.h>
+
+#include <soc/pci_devs.h>
+#include <soc/ramstage.h>
+
+static void usb_xhci_init(struct device *dev)
+{
+ /* USB XHCI configuration is handled by the FSP */
+
+ printk(BIOS_NOTICE, "pch: %s\n", __func__);
+
+ /* Set the value for PCI command register. */
+ pci_write_config16(dev, PCI_COMMAND,
+ PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
+}
+
+static struct device_operations usb_xhci_ops = {
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
+ .init = usb_xhci_init,
+ .enable = pci_dev_enable_resources,
+ .scan_bus = 0,
+ .ops_pci = &soc_pci_ops,
+};
+
+static const struct pci_driver pch_usb_xhci __pci_driver = {
+ .ops = &usb_xhci_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = XHCI_DEVID,
+};