blob: 5c874e198c6e726086411dde6bb1963e70242908 [file] [log] [blame]
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Google Inc.
* Copyright (C) 2015 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; 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 <cbmem.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <soc/iosf.h>
#include <soc/nvs.h>
#include <soc/ramstage.h>
void scc_enable_acpi_mode(struct device *dev, int iosf_reg, int nvs_index)
{
struct resource *bar;
global_nvs_t *gnvs;
printk(BIOS_SPEW, "%s/%s (%s, 0x%08x, 0x%08x)\n",
__FILE__, __func__, dev_name(dev), iosf_reg, nvs_index);
/* Find ACPI NVS to update BARs */
gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
if (!gnvs) {
printk(BIOS_ERR, "Unable to locate Global NVS\n");
return;
}
/* Save BAR0 and BAR1 to ACPI NVS */
bar = find_resource(dev, PCI_BASE_ADDRESS_0);
if (bar)
gnvs->dev.scc_bar0[nvs_index] = bar->base;
bar = find_resource(dev, PCI_BASE_ADDRESS_2);
if (bar)
gnvs->dev.scc_bar1[nvs_index] = bar->base;
/* Device is enabled in ACPI mode */
gnvs->dev.scc_en[nvs_index] = 1;
}