diff options
Diffstat (limited to 'drivers/video/video-uclass.c')
| -rw-r--r-- | drivers/video/video-uclass.c | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/drivers/video/video-uclass.c b/drivers/video/video-uclass.c index 6aaacff10d..da89f43144 100644 --- a/drivers/video/video-uclass.c +++ b/drivers/video/video-uclass.c @@ -78,24 +78,40 @@ void video_set_flush_dcache(struct udevice *dev, bool flush) priv->flush_dcache = flush; } +static ulong alloc_fb_(ulong align, ulong size, ulong *addrp) +{ + ulong base; + + align = align ? align : 1 << 20; + base = *addrp - size; + base &= ~(align - 1); + size = *addrp - base; + *addrp = base; + + return size; +} + static ulong alloc_fb(struct udevice *dev, ulong *addrp) { struct video_uc_plat *plat = dev_get_uclass_plat(dev); - ulong base, align, size; + ulong size; + + if (!plat->size) { + if (IS_ENABLED(CONFIG_VIDEO_COPY) && plat->copy_size) { + size = alloc_fb_(plat->align, plat->copy_size, addrp); + plat->copy_base = *addrp; + return size; + } - if (!plat->size) return 0; + } /* Allow drivers to allocate the frame buffer themselves */ if (plat->base) return 0; - align = plat->align ? plat->align : 1 << 20; - base = *addrp - plat->size; - base &= ~(align - 1); - plat->base = base; - size = *addrp - base; - *addrp = base; + size = alloc_fb_(plat->align, plat->size, addrp); + plat->base = *addrp; return size; } @@ -529,8 +545,8 @@ static int video_post_bind(struct udevice *dev) addr = uc_priv->video_ptr; size = alloc_fb(dev, &addr); if (addr < gd->video_bottom) { - /* Device tree node may need the 'u-boot,dm-pre-reloc' or - * 'u-boot,dm-pre-proper' tag + /* Device tree node may need the 'bootph-all' or + * 'bootph-some-ram' tag */ printf("Video device '%s' cannot allocate frame buffer memory -ensure the device is set up before relocation\n", dev->name); |