src/soc/intel/apollolake/graphics.c

   1 /* This file is part of the coreboot project. */
   2 /*
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include <stdint.h>
  16 #include <acpi/acpi.h>
  17 #include <bootmode.h>
  18 #include <console/console.h>
  19 #include <fsp/util.h>
  20 #include <device/device.h>
  21 #include <device/pci.h>
  22 #include <device/pci_ops.h>
  23 #include <intelblocks/graphics.h>
  24 #include <drivers/intel/gma/opregion.h>
  25 #include <drivers/intel/gma/libgfxinit.h>
  26 #include <types.h>
  27
  28 uintptr_t fsp_soc_get_igd_bar(void)
  29 {
  30         return graphics_get_memory_base();
  31 }
  32
  33 void graphics_soc_init(struct device *const dev)
  34 {
  35         if (CONFIG(RUN_FSP_GOP))
  36                 return;
  37
  38         uint32_t reg32 = pci_read_config32(dev, PCI_COMMAND);
  39         reg32 |= PCI_COMMAND_MASTER;
  40         pci_write_config32(dev, PCI_COMMAND, reg32);
  41
  42         if (CONFIG(MAINBOARD_USE_LIBGFXINIT)) {
  43                 if (!acpi_is_wakeup_s3() && display_init_required()) {
  44                         int lightup_ok;
  45                         gma_gfxinit(&lightup_ok);
  46                         gfx_set_init_done(lightup_ok);
  47                 }
  48         } else {
  49                 /* Initialize PCI device, load/execute BIOS Option ROM */
  50                 pci_dev_init(dev);
  51         }
  52 }
  53
  54 uintptr_t graphics_soc_write_acpi_opregion(const struct device *device,
  55                 uintptr_t current, struct acpi_rsdp *rsdp)
  56 {
  57         igd_opregion_t *opregion;
  58
  59         printk(BIOS_DEBUG, "ACPI:    * IGD OpRegion\n");
  60         opregion = (igd_opregion_t *)current;
  61
  62         if (intel_gma_init_igd_opregion(opregion) != CB_SUCCESS)
  63                 return current;
  64
  65         /* FIXME: Add platform specific mailbox initialization */
  66
  67         current += sizeof(igd_opregion_t);
  68         return acpi_align_current(current);
  69 }