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-rw-r--r--src/soc/intel/apollolake/pmc.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/src/soc/intel/apollolake/pmc.c b/src/soc/intel/apollolake/pmc.c
index 8cf9843924..c88e14c4c0 100644
--- a/src/soc/intel/apollolake/pmc.c
+++ b/src/soc/intel/apollolake/pmc.c
@@ -38,9 +38,29 @@ static void read_resources(device_t dev)
res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
}
+/*
+ * Part 2:
+ * Resources are assigned, and no other device was given an IO resource to
+ * overlap with our ACPI BAR. But because the resource is FIXED,
+ * pci_dev_set_resources() will not store it for us. We need to do that
+ * explicitly.
+ */
+static void set_resources(device_t dev)
+{
+ struct resource *res;
+
+ pci_dev_set_resources(dev);
+
+ res = find_resource(dev, PCI_BASE_ADDRESS_4);
+ pci_write_config32(dev, res->index, res->base);
+ dev->command |= PCI_COMMAND_IO;
+ res->flags |= IORESOURCE_STORED;
+ report_resource_stored(dev, res, " ACPI BAR");
+}
+
static const struct device_operations device_ops = {
.read_resources = read_resources,
- .set_resources = pci_dev_set_resources,
+ .set_resources = set_resources,
.enable_resources = pci_dev_enable_resources,
};