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authorHannah Williams <hannah.williams@intel.com>2016-02-11 13:46:28 -0800
committerAaron Durbin <adurbin@chromium.org>2016-04-30 02:34:29 +0200
commit733b39aed4b12aa1e6ec5b4b7db9bb48ba88e015 (patch)
tree98f3a814ab9335f2063c3fc7673e6f8c96dc90af /src/soc/intel
parent80a3df260767a6d9ad34b61572d483579c21476c (diff)
downloadcoreboot-733b39aed4b12aa1e6ec5b4b7db9bb48ba88e015.tar.xz
soc/apollolake: Prevent PMC BAR reassignment during resource allocation
Change-Id: Ie8e21e62ecd25f3c620a57c24948411c14c1e111 Signed-off-by: Hannah Williams <hannah.williams@intel.com> Reviewed-on: https://review.coreboot.org/14315 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/intel')
-rw-r--r--src/soc/intel/apollolake/Makefile.inc1
-rw-r--r--src/soc/intel/apollolake/include/soc/pci_ids.h1
-rw-r--r--src/soc/intel/apollolake/pmc.c58
3 files changed, 60 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/Makefile.inc b/src/soc/intel/apollolake/Makefile.inc
index f0a33f763d..e162a01a13 100644
--- a/src/soc/intel/apollolake/Makefile.inc
+++ b/src/soc/intel/apollolake/Makefile.inc
@@ -45,6 +45,7 @@ ramstage-y += northbridge.c
ramstage-y += spi.c
ramstage-y += tsc_freq.c
ramstage-y += pmutil.c
+ramstage-y += pmc.c
postcar-y += exit_car.S
postcar-y += memmap.c
diff --git a/src/soc/intel/apollolake/include/soc/pci_ids.h b/src/soc/intel/apollolake/include/soc/pci_ids.h
index 148640fee0..0790c6ef4f 100644
--- a/src/soc/intel/apollolake/include/soc/pci_ids.h
+++ b/src/soc/intel/apollolake/include/soc/pci_ids.h
@@ -21,6 +21,7 @@
#define PCI_DEVICE_ID_APOLLOLAKE_NB 0x5af0 /* 00:00.0 */
#define PCI_DEVICE_ID_APOLLOLAKE_IGD 0x5a84 /* 00:02.0 */
#define PCI_DEVICE_ID_APOLLOLAKE_P2SB 0x5a92 /* 00:0d.0 */
+#define PCI_DEVICE_ID_APOLLOLAKE_PMC 0x5a94 /* 00:0d.1 */
#define PCI_DEVICE_ID_APOLLOLAKE_HWSEQ_SPI 0x5a96 /* 00:0d.2 */
#define PCI_DEVICE_ID_APOLLOLAKE_AUDIO 0x5a98 /* 00:0e.0 */
#define PCI_DEVICE_ID_APOLLOLAKE_SATA 0x5ae0 /* 00:12.0 */
diff --git a/src/soc/intel/apollolake/pmc.c b/src/soc/intel/apollolake/pmc.c
new file mode 100644
index 0000000000..0251e7cf61
--- /dev/null
+++ b/src/soc/intel/apollolake/pmc.c
@@ -0,0 +1,58 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015-2016 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 <cpu/cpu.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <soc/iomap.h>
+#include <soc/pci_ids.h>
+
+static void pmc_init(device_t dev)
+{
+ printk(BIOS_SPEW, "%s/%s ( %s )\n",
+ __FILE__, __func__, dev_name(dev));
+}
+
+static void pmc_read_resources(device_t dev)
+{
+ struct resource *res;
+
+ mmio_resource(dev, PCI_BASE_ADDRESS_0, PMC_BAR0/KiB, 1);
+ mmio_resource(dev, PCI_BASE_ADDRESS_2, PMC_BAR1/KiB, 2);
+
+ res = new_resource(dev, PCI_BASE_ADDRESS_4);
+ res->base = ACPI_PMIO_BASE;
+ res->size = KiB;
+ res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+}
+
+static const struct device_operations device_ops = {
+ .read_resources = pmc_read_resources,
+ .set_resources = DEVICE_NOOP,
+ .enable_resources = DEVICE_NOOP,
+ .init = pmc_init,
+ .enable = DEVICE_NOOP,
+};
+
+static const struct pci_driver pmc __pci_driver = {
+ .ops = &device_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_APOLLOLAKE_PMC,
+};
+
+