diff options
Diffstat (limited to 'drivers/video/vesa.c')
| -rw-r--r-- | drivers/video/vesa.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/drivers/video/vesa.c b/drivers/video/vesa.c index 6c03611e80..9656326bdb 100644 --- a/drivers/video/vesa.c +++ b/drivers/video/vesa.c @@ -5,12 +5,39 @@ #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) { - return vbe_setup_video(dev, NULL); + struct video_uc_platdata *plat = dev_get_uclass_platdata(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_platdata *uc_plat = dev_get_uclass_platdata(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[] = { @@ -22,6 +49,7 @@ U_BOOT_DRIVER(vesa_video) = { .name = "vesa_video", .id = UCLASS_VIDEO, .of_match = vesa_video_ids, + .bind = vesa_video_bind, .probe = vesa_video_probe, }; |