1 files changed, 80 insertions, 0 deletions
diff --git a/src/soc/intel/jasperlake/systemagent.c b/src/soc/intel/jasperlake/systemagent.c
new file mode 100644
index 0000000000..fb0ce118aa
--- /dev/null
+++ b/src/soc/intel/jasperlake/systemagent.c
@@ -0,0 +1,80 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ *
+ * 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.
+ */
+
+/*
+ * This file is created based on Intel Tiger Lake Processor SA Datasheet
+ * Document number: 571131
+ * Chapter number: 3
+ */
+
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ops.h>
+#include <intelblocks/systemagent.h>
+#include <soc/iomap.h>
+#include <soc/systemagent.h>
+
+/*
+ * SoC implementation
+ *
+ * Add all known fixed memory ranges for Host Controller/Memory
+ * controller.
+ */
+void soc_add_fixed_mmio_resources(struct device *dev, int *index)
+{
+	static const struct sa_mmio_descriptor soc_fixed_resources[] = {
+		{ PCIEXBAR, CONFIG_MMCONF_BASE_ADDRESS, CONFIG_SA_PCIEX_LENGTH,
+				"PCIEXBAR" },
+		{ MCHBAR, MCH_BASE_ADDRESS, MCH_BASE_SIZE, "MCHBAR" },
+		{ DMIBAR, DMI_BASE_ADDRESS, DMI_BASE_SIZE, "DMIBAR" },
+		{ EPBAR, EP_BASE_ADDRESS, EP_BASE_SIZE, "EPBAR" },
+		{ REGBAR, REG_BASE_ADDRESS, REG_BASE_SIZE, "REGBAR" },
+		{ EDRAMBAR, EDRAM_BASE_ADDRESS, EDRAM_BASE_SIZE, "EDRAMBAR" },
+		/*
+		 * PMC pci device gets hidden from PCI bus due to Silicon
+		 * policy hence binding PMCBAR aka PWRMBASE (offset 0x10) with
+		 * SA resources to ensure that PMCBAR falls under PCI reserved
+		 * memory range.
+		 *
+		 * Note: Don't add any more resource with same offset 0x10
+		 * under this device space.
+		 */
+		{ PCI_BASE_ADDRESS_0, PCH_PWRM_BASE_ADDRESS, PCH_PWRM_BASE_SIZE,
+				"PMCBAR" },
+	};
+
+	sa_add_fixed_mmio_resources(dev, index, soc_fixed_resources,
+			ARRAY_SIZE(soc_fixed_resources));
+
+	/* Add Vt-d resources if VT-d is enabled */
+	if ((pci_read_config32(dev, CAPID0_A) & VTD_DISABLE))
+		return;
+
+	sa_add_fixed_mmio_resources(dev, index, soc_vtd_resources,
+			ARRAY_SIZE(soc_vtd_resources));
+}
+
+/*
+ * SoC implementation
+ *
+ * Perform System Agent Initialization during Ramstage phase.
+ */
+void soc_systemagent_init(struct device *dev)
+{
+	/* Enable Power Aware Interrupt Routing */
+	enable_power_aware_intr();
+
+	/* Enable BIOS Reset CPL */
+	enable_bios_reset_cpl();
+}