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authorAaron Durbin <adurbin@chromium.org>2013-09-24 12:29:57 -0500
committerAaron Durbin <adurbin@google.com>2014-01-31 20:42:08 +0100
commitfda56a6bfdee8a1b0afea3618e466f2813368aeb (patch)
treecc02067e9e33f8f81eabeffd821b38a3d83a8c4a /src
parentecf90863898469c9fa8251eedb62ec8e064f25c9 (diff)
baytrail: add common pci_operations
The coreboot device modeling for pci devices wants a pci_operations structure for all devices. This structure just sets the subsystem vendor and device id. Add a common one that all the other pci drivers can use for Bay Trail. BUG=chrome-os-partner:22860 BRANCH=None TEST=Built and booted while utilizing this new structure. Change-Id: I39949cbdb83b3acb93fe4034eb4278d45369e321 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/170428 Reviewed-on: http://review.coreboot.org/4851 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src')
-rw-r--r--src/soc/intel/baytrail/baytrail/ramstage.h27
-rw-r--r--src/soc/intel/baytrail/chip.c17
2 files changed, 43 insertions, 1 deletions
diff --git a/src/soc/intel/baytrail/baytrail/ramstage.h b/src/soc/intel/baytrail/baytrail/ramstage.h
new file mode 100644
index 0000000000..61fe9c3ff7
--- /dev/null
+++ b/src/soc/intel/baytrail/baytrail/ramstage.h
@@ -0,0 +1,27 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google Inc.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _BAYTRAIL_RAMSTAGE_H_
+#define _BAYTRAIL_RAMSTAGE_H_
+
+#include <device/device.h>
+
+extern struct pci_operations soc_pci_ops;
+
+#endif /* _BAYTRAIL_RAMSTAGE_H_ */
diff --git a/src/soc/intel/baytrail/chip.c b/src/soc/intel/baytrail/chip.c
index 5a5c364f5f..09c36dfd5d 100644
--- a/src/soc/intel/baytrail/chip.c
+++ b/src/soc/intel/baytrail/chip.c
@@ -52,7 +52,7 @@ static struct device_operations cpu_bus_ops = {
.set_resources = cpu_bus_noop,
.enable_resources = cpu_bus_noop,
.init = cpu_bus_init,
- .scan_bus = 0,
+ .scan_bus = NULL,
};
@@ -72,3 +72,18 @@ struct chip_operations soc_intel_baytrail_ops = {
CHIP_NAME("Intel BayTrail SoC")
.enable_dev = enable_dev,
};
+
+static void pci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+{
+ if (!vendor || !device) {
+ pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+ pci_read_config32(dev, PCI_VENDOR_ID));
+ } else {
+ pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+ ((device & 0xffff) << 16) | (vendor & 0xffff));
+ }
+}
+
+struct pci_operations soc_pci_ops = {
+ .set_subsystem = &pci_set_subsystem,
+};