2015-05-13 03:19:47 +02:00
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2014 Google Inc.
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2017-11-28 11:56:08 +01:00
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* Copyright (C) 2015-2017 Intel Corporation.
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2015-05-13 03:19:47 +02:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <console/console.h>
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#include <device/pci.h>
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#include <drivers/intel/gma/i915_reg.h>
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2017-11-28 11:56:08 +01:00
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#include <intelblocks/graphics.h>
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2017-06-15 09:22:06 +02:00
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#include <soc/intel/common/opregion.h>
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2015-05-13 03:19:47 +02:00
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#include <soc/ramstage.h>
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2016-08-30 17:17:13 +02:00
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uintptr_t fsp_soc_get_igd_bar(void)
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{
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2017-11-28 11:56:08 +01:00
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return graphics_get_memory_base();
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2015-05-13 03:19:47 +02:00
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}
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2017-11-28 11:56:08 +01:00
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void graphics_soc_init(struct device *dev)
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2015-05-13 03:19:47 +02:00
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{
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2016-02-11 02:10:05 +01:00
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u32 ddi_buf_ctl;
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/*
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* Enable DDI-A (eDP) 4-lane operation if the link is not up yet.
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* This will allow the kernel to use 4-lane eDP links properly
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* if the VBIOS or GOP driver does not execute.
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*/
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2017-11-28 11:56:08 +01:00
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ddi_buf_ctl = graphics_gtt_read(DDI_BUF_CTL_A);
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2016-02-11 02:10:05 +01:00
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if (!acpi_is_wakeup_s3() && !(ddi_buf_ctl & DDI_BUF_CTL_ENABLE)) {
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ddi_buf_ctl |= DDI_A_4_LANES;
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2017-11-28 11:56:08 +01:00
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graphics_gtt_write(DDI_BUF_CTL_A, ddi_buf_ctl);
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2016-02-11 02:10:05 +01:00
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}
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2017-11-28 11:56:08 +01:00
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/*
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* GFX PEIM module inside FSP binary is taking care of graphics
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* initialization based on INTEL_GMA_ADD_VBT_DATA_FILE Kconfig
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* option and input VBT file. Hence no need to load/execute legacy VGA
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* OpROM in order to initialize GFX.
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*
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* In case of non-FSP solution, SoC need to select VGA_ROM_RUN
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* Kconfig to perform GFX initialization through VGA OpRom.
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*/
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2017-07-17 19:53:56 +02:00
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if (IS_ENABLED(CONFIG_INTEL_GMA_ADD_VBT_DATA_FILE))
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2015-10-02 02:21:33 +02:00
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return;
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2017-11-28 11:56:08 +01:00
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/* IGD needs to Bus Master */
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2015-05-13 03:19:47 +02:00
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u32 reg32 = pci_read_config32(dev, PCI_COMMAND);
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reg32 |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
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pci_write_config32(dev, PCI_COMMAND, reg32);
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/* Initialize PCI device, load/execute BIOS Option ROM */
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pci_dev_init(dev);
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}
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2015-10-02 02:21:33 +02:00
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/* Initialize IGD OpRegion, called from ACPI code */
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2017-11-28 11:56:08 +01:00
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static void update_igd_opregion(igd_opregion_t *opregion)
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2015-10-02 02:21:33 +02:00
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{
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u16 reg16;
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/* Initialize Mailbox 3 */
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opregion->mailbox3.bclp = IGD_BACKLIGHT_BRIGHTNESS;
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opregion->mailbox3.pfit = IGD_FIELD_VALID | IGD_PFIT_STRETCH;
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opregion->mailbox3.pcft = 0; /* should be (IMON << 1) & 0x3e */
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opregion->mailbox3.cblv = IGD_FIELD_VALID | IGD_INITIAL_BRIGHTNESS;
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opregion->mailbox3.bclm[0] = IGD_WORD_FIELD_VALID + 0x0000;
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opregion->mailbox3.bclm[1] = IGD_WORD_FIELD_VALID + 0x0a19;
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opregion->mailbox3.bclm[2] = IGD_WORD_FIELD_VALID + 0x1433;
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opregion->mailbox3.bclm[3] = IGD_WORD_FIELD_VALID + 0x1e4c;
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opregion->mailbox3.bclm[4] = IGD_WORD_FIELD_VALID + 0x2866;
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opregion->mailbox3.bclm[5] = IGD_WORD_FIELD_VALID + 0x327f;
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opregion->mailbox3.bclm[6] = IGD_WORD_FIELD_VALID + 0x3c99;
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opregion->mailbox3.bclm[7] = IGD_WORD_FIELD_VALID + 0x46b2;
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opregion->mailbox3.bclm[8] = IGD_WORD_FIELD_VALID + 0x50cc;
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opregion->mailbox3.bclm[9] = IGD_WORD_FIELD_VALID + 0x5ae5;
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opregion->mailbox3.bclm[10] = IGD_WORD_FIELD_VALID + 0x64ff;
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/* TODO This may need to happen in S3 resume */
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pci_write_config32(SA_DEV_IGD, ASLS, (u32)opregion);
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reg16 = pci_read_config16(SA_DEV_IGD, SWSCI);
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reg16 &= ~GSSCIE;
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reg16 |= SMISCISEL;
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pci_write_config16(SA_DEV_IGD, SWSCI, reg16);
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}
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2017-11-28 11:56:08 +01:00
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uintptr_t graphics_soc_write_acpi_opregion(struct device *device,
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uintptr_t current, struct acpi_rsdp *rsdp)
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2015-10-02 02:21:33 +02:00
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{
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igd_opregion_t *opregion;
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/* If GOP is not used, exit here */
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2017-07-17 19:53:56 +02:00
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if (!IS_ENABLED(CONFIG_INTEL_GMA_ADD_VBT_DATA_FILE))
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2015-10-02 02:21:33 +02:00
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return current;
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/* If IGD is disabled, exit here */
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if (pci_read_config16(device, PCI_VENDOR_ID) == 0xFFFF)
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return current;
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printk(BIOS_DEBUG, "ACPI: * IGD OpRegion\n");
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opregion = (igd_opregion_t *)current;
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2017-07-25 16:34:26 +02:00
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if (init_igd_opregion(opregion) != CB_SUCCESS)
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return current;
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2016-08-23 11:01:23 +02:00
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update_igd_opregion(opregion);
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2015-10-02 02:21:33 +02:00
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current += sizeof(igd_opregion_t);
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2015-12-11 00:07:38 +01:00
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current = acpi_align_current(current);
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2015-10-02 02:21:33 +02:00
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printk(BIOS_DEBUG, "current = %lx\n", current);
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return current;
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}
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