69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
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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) 2015-2016 Intel Corp.
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* (Written by Alexandru Gagniuc <alexandrux.gagniuc@intel.com> for Intel Corp.)
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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; either version 2 of the License, or
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* (at your option) any later version.
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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 <fsp/util.h>
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#include <device/device.h>
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#include <device/pci.h>
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#include <device/pci_ids.h>
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#include <soc/pci_ids.h>
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static uintptr_t framebuffer_bar = (uintptr_t)NULL;
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void lb_framebuffer(struct lb_header *header)
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{
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enum cb_err ret;
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struct lb_framebuffer *framebuffer;
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framebuffer = (void *)lb_new_record(header);
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ret = fsp_fill_lb_framebuffer(framebuffer);
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if (ret != CB_SUCCESS) {
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printk(BIOS_ALERT, "FSP did not return a valid framebuffer\n");
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return;
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}
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if (!framebuffer_bar) {
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printk(BIOS_ALERT, "Framebuffer BAR invalid (00:02.0 BAR2)\n");
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return;
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}
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/* Resource allocator can move the BAR around after FSP configures it */
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framebuffer->physical_address = framebuffer_bar;
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printk(BIOS_DEBUG, "Graphics framebuffer located at 0x%llx\n",
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framebuffer->physical_address);
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}
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static void igd_set_resources(struct device *dev)
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{
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framebuffer_bar = find_resource(dev, PCI_BASE_ADDRESS_2)->base;
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pci_dev_set_resources(dev);
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}
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static const struct device_operations igd_ops = {
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.read_resources = pci_dev_read_resources,
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.set_resources = igd_set_resources,
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.enable_resources = pci_dev_enable_resources,
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.init = pci_dev_init,
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.enable = DEVICE_NOOP
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};
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static const struct pci_driver integrated_graphics_driver __pci_driver = {
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.ops = &igd_ops,
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.vendor = PCI_VENDOR_ID_INTEL,
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.device = PCI_DEVICE_ID_APOLLOLAKE_IGD,
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};
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