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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
*/
#include <common.h>
#include <dm.h>
#include <log.h>
#include <pci.h>
#include <vbe.h>
#include <video.h>
#include <asm/mtrr.h>
static int vesa_video_probe(struct udevice *dev)
{
struct video_uc_plat *plat = dev_get_uclass_plat(dev);
ulong fbbase;
int ret;
ret = vbe_setup_video(dev, NULL);
if (ret)
return log_ret(ret);
/* Use write-combining for the graphics memory, 256MB */
fbbase = IS_ENABLED(CONFIG_VIDEO_COPY) ? plat->copy_base : plat->base;
mtrr_add_request(MTRR_TYPE_WRCOMB, fbbase, 256 << 20);
mtrr_commit(true);
return 0;
}
static int vesa_video_bind(struct udevice *dev)
{
struct video_uc_plat *uc_plat = dev_get_uclass_plat(dev);
/* Set the maximum supported resolution */
uc_plat->size = 2560 * 1600 * 4;
log_debug("%s: Frame buffer size %x\n", __func__, uc_plat->size);
return 0;
}
static const struct udevice_id vesa_video_ids[] = {
{ .compatible = "vesa-fb" },
{ }
};
U_BOOT_DRIVER(vesa_video) = {
.name = "vesa_video",
.id = UCLASS_VIDEO,
.of_match = vesa_video_ids,
.bind = vesa_video_bind,
.probe = vesa_video_probe,
};
static struct pci_device_id vesa_video_supported[] = {
{ PCI_DEVICE_CLASS(PCI_CLASS_DISPLAY_VGA << 8, ~0) },
{ },
};
U_BOOT_PCI_DEVICE(vesa_video, vesa_video_supported);
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