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authorLijian Zhao <lijian.zhao@intel.com>2017-08-08 11:32:35 -0700
committerAaron Durbin <adurbin@chromium.org>2017-08-09 20:06:27 +0000
commitaa3d78d5e695f983ace43a594191f31769cd410c (patch)
tree73c6042414a4b574fca304eed9cd08a073c62522 /src/soc/intel/cannonlake
parentde0326b96ce3a9ea109e8f62760b6022de256220 (diff)
downloadcoreboot-aa3d78d5e695f983ace43a594191f31769cd410c.tar.xz
soc/intel/cannonlake: Add ramstage SystemAgent support
Revere memory resource within SA, also perform necessary routine for initialization during ramstage. Change-Id: Ibaa7334b0d94fedc87e707a136c9537e2e6f57cb Signed-off-by: Lijian Zhao <lijian.zhao@intel.com> Reviewed-on: https://review.coreboot.org/20914 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/cannonlake')
-rw-r--r--src/soc/intel/cannonlake/Makefile.inc1
-rw-r--r--src/soc/intel/cannonlake/systemagent.c58
2 files changed, 59 insertions, 0 deletions
diff --git a/src/soc/intel/cannonlake/Makefile.inc b/src/soc/intel/cannonlake/Makefile.inc
index 537a973a61..37434bc4a1 100644
--- a/src/soc/intel/cannonlake/Makefile.inc
+++ b/src/soc/intel/cannonlake/Makefile.inc
@@ -19,6 +19,7 @@ romstage-$(CONFIG_DRIVERS_UART_8250MEM) += uart.c
ramstage-y += cbmem.c
ramstage-$(CONFIG_PLATFORM_USES_FSP2_0) += reset.c
+ramstage-y += systemagent.c
ramstage-$(CONFIG_DRIVERS_UART_8250MEM) += uart.c
CPPFLAGS_common += -I$(src)/soc/intel/cannonlake/include/fsp20
diff --git a/src/soc/intel/cannonlake/systemagent.c b/src/soc/intel/cannonlake/systemagent.c
new file mode 100644
index 0000000000..7ce152dc21
--- /dev/null
+++ b/src/soc/intel/cannonlake/systemagent.c
@@ -0,0 +1,58 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015-2017 Intel Corporation.
+ *
+ * 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 <intelblocks/systemagent.h>
+#include <soc/iomap.h>
+#include <soc/systemagent.h>
+
+/*
+ * SoC implementation
+ *
+ * Add all known fixed memory ranges for Host Controller/Mmeory
+ * 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" },
+ };
+
+ sa_add_fixed_mmio_resources(dev, index, soc_fixed_resources,
+ ARRAY_SIZE(soc_fixed_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();
+}