| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <acpi/acpi.h> |
| #include <bootmode.h> |
| #include <console/console.h> |
| #include <fsp/util.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ops.h> |
| #include <drivers/intel/gma/i915_reg.h> |
| #include <drivers/intel/gma/libgfxinit.h> |
| #include <drivers/intel/gma/opregion.h> |
| #include <intelblocks/graphics.h> |
| #include <types.h> |
| |
| 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; |
| |
| /* |
| * 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); |
| } |
| |
| /* IGD needs to Bus Master */ |
| pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | |
| PCI_COMMAND_IO); |
| |
| /* |
| * GFX PEIM module inside FSP binary is taking care of graphics |
| * initialization based on RUN_FSP_GOP Kconfig option and input |
| * VBT file. |
| * |
| * In case of non-FSP solution, SoC need to select another |
| * Kconfig to perform GFX initialization. |
| */ |
| if (CONFIG(RUN_FSP_GOP)) { |
| /* nothing to do */ |
| } else if (CONFIG(MAINBOARD_USE_LIBGFXINIT)) { |
| if (!acpi_is_wakeup_s3() && display_init_required()) { |
| int lightup_ok; |
| gma_gfxinit(&lightup_ok); |
| gfx_set_init_done(lightup_ok); |
| } |
| } else { |
| /* Initialize PCI device, load/execute BIOS Option ROM */ |
| pci_dev_init(dev); |
| } |
| } |
| |
| uintptr_t graphics_soc_write_acpi_opregion(const 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); |
| } |