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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>
This commit is contained in:
Lijian Zhao 2017-08-08 11:32:35 -07:00 committed by Aaron Durbin
parent de0326b96c
commit aa3d78d5e6
2 changed files with 59 additions and 0 deletions
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1
src/soc/intel/cannonlake/Makefile.inc
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@ -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

58
src/soc/intel/cannonlake/systemagent.c Normal file
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@ -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();
}