diff options
| -rw-r--r-- | vgasrc/cbvga.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/vgasrc/cbvga.c b/vgasrc/cbvga.c index 859524cb..438d8fda 100644 --- a/vgasrc/cbvga.c +++ b/vgasrc/cbvga.c @@ -312,11 +312,17 @@ cbvga_setup(void) } u64 addr = GET_FARVAR(0, cbfb->physical_address); - u8 bpp = cbfb->blue_mask_size + cbfb->green_mask_size - + cbfb->red_mask_size + cbfb->reserved_mask_size; + u8 bpp = GET_FARVAR(0, cbfb->blue_mask_size) + + GET_FARVAR(0, cbfb->green_mask_size) + + GET_FARVAR(0, cbfb->red_mask_size) + + GET_FARVAR(0, cbfb->reserved_mask_size); u32 xlines = GET_FARVAR(0, cbfb->x_resolution); u32 ylines = GET_FARVAR(0, cbfb->y_resolution); u32 linelength = GET_FARVAR(0, cbfb->bytes_per_line); + //fall back to coreboot reported bpp if calculated value invalid + if (bpp != 15 && bpp != 16 && bpp != 24 && bpp != 32) + bpp = GET_FARVAR(0, cbfb->bits_per_pixel); + dprintf(1, "Found FB @ %llx %dx%d with %d bpp (%d stride)\n" , addr, xlines, ylines, bpp, linelength); |