2018-10-17 08:25:01 +02:00
|
|
|
/*
|
|
|
|
* This file is part of the coreboot project.
|
|
|
|
*
|
|
|
|
* Copyright (C) 2018 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; either version 2 of the License, or
|
|
|
|
* (at your option) any later version.
|
|
|
|
*
|
|
|
|
* 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.
|
|
|
|
*/
|
|
|
|
|
2019-03-06 09:30:17 +01:00
|
|
|
#include <arch/acpi.h>
|
2018-10-17 08:25:01 +02:00
|
|
|
#include <console/console.h>
|
|
|
|
#include <fsp/util.h>
|
|
|
|
#include <device/device.h>
|
|
|
|
#include <device/pci.h>
|
2019-03-01 12:43:02 +01:00
|
|
|
#include <device/pci_ops.h>
|
2018-10-17 08:25:01 +02:00
|
|
|
#include <drivers/intel/gma/i915_reg.h>
|
|
|
|
#include <drivers/intel/gma/opregion.h>
|
|
|
|
#include <intelblocks/graphics.h>
|
2019-05-15 21:11:39 +02:00
|
|
|
#include <types.h>
|
2018-10-17 08:25:01 +02:00
|
|
|
|
|
|
|
uintptr_t fsp_soc_get_igd_bar(void)
|
|
|
|
{
|
|
|
|
return graphics_get_memory_base();
|
|
|
|
}
|
|
|
|
|
|
|
|
void graphics_soc_init(struct device *dev)
|
|
|
|
{
|
|
|
|
uint32_t ddi_buf_ctl;
|
|
|
|
|
2019-06-04 08:44:44 +02:00
|
|
|
/* Skip IGD GT programming */
|
|
|
|
if (CONFIG(SKIP_GRAPHICS_ENABLING))
|
|
|
|
return;
|
|
|
|
|
2018-10-17 08:25:01 +02:00
|
|
|
/*
|
|
|
|
* Enable DDI-A (eDP) 4-lane operation if the link is not up yet.
|
|
|
|
* This will allow the kernel to use 4-lane eDP links properly
|
|
|
|
* if the VBIOS or GOP driver do not execute.
|
|
|
|
*/
|
|
|
|
ddi_buf_ctl = graphics_gtt_read(DDI_BUF_CTL_A);
|
|
|
|
if (!acpi_is_wakeup_s3() && !(ddi_buf_ctl & DDI_BUF_CTL_ENABLE)) {
|
|
|
|
ddi_buf_ctl |= (DDI_A_4_LANES | DDI_INIT_DISPLAY_DETECTED |
|
|
|
|
DDI_BUF_IS_IDLE);
|
|
|
|
graphics_gtt_write(DDI_BUF_CTL_A, ddi_buf_ctl);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* GFX PEIM module inside FSP binary is taking care of graphics
|
|
|
|
* initialization based on INTEL_GMA_ADD_VBT Kconfig
|
|
|
|
* option and input VBT file. Hence no need to load/execute legacy VGA
|
|
|
|
* OpROM in order to initialize GFX.
|
|
|
|
*
|
|
|
|
* In case of non-FSP solution, SoC need to select VGA_ROM_RUN
|
|
|
|
* Kconfig to perform GFX initialization through VGA OpRom.
|
|
|
|
*/
|
2019-03-06 01:53:33 +01:00
|
|
|
if (CONFIG(INTEL_GMA_ADD_VBT))
|
2018-10-17 08:25:01 +02:00
|
|
|
return;
|
|
|
|
|
|
|
|
/* IGD needs to Bus Master */
|
|
|
|
uint32_t reg32 = pci_read_config32(dev, PCI_COMMAND);
|
|
|
|
reg32 |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
|
|
|
|
pci_write_config32(dev, PCI_COMMAND, reg32);
|
|
|
|
|
|
|
|
/* Initialize PCI device, load/execute BIOS Option ROM */
|
|
|
|
pci_dev_init(dev);
|
|
|
|
}
|
|
|
|
|
|
|
|
uintptr_t graphics_soc_write_acpi_opregion(struct device *device,
|
|
|
|
uintptr_t current, struct acpi_rsdp *rsdp)
|
|
|
|
{
|
|
|
|
igd_opregion_t *opregion;
|
|
|
|
|
|
|
|
printk(BIOS_DEBUG, "ACPI: * IGD OpRegion\n");
|
|
|
|
opregion = (igd_opregion_t *)current;
|
|
|
|
|
|
|
|
if (intel_gma_init_igd_opregion(opregion) != CB_SUCCESS)
|
|
|
|
return current;
|
|
|
|
|
|
|
|
current += sizeof(igd_opregion_t);
|
|
|
|
|
|
|
|
return acpi_align_current(current);
|
|
|
|
}
|