diff options
Diffstat (limited to 'common/fdt_support.c')
| -rw-r--r-- | common/fdt_support.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/common/fdt_support.c b/common/fdt_support.c index dbceec6f2d..0e2f12bd09 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -21,6 +21,9 @@ #include <exports.h> #include <fdtdec.h> #include <version.h> +#include <video.h> + +DECLARE_GLOBAL_DATA_PTR; /** * fdt_getprop_u32_default_node - Return a node's property or a default @@ -1970,6 +1973,24 @@ int fdt_setup_simplefb_node(void *fdt, int node, u64 base_address, u32 width, return 0; } +#if IS_ENABLED(CONFIG_VIDEO) +int fdt_add_fb_mem_rsv(void *blob) +{ + struct fdt_memory mem; + + /* nothing to do when the frame buffer is not defined */ + if (gd->video_bottom == gd->video_top) + return 0; + + /* reserved with no-map tag the video buffer */ + mem.start = gd->video_bottom; + mem.end = gd->video_top - 1; + + return fdtdec_add_reserved_memory(blob, "framebuffer", &mem, NULL, 0, NULL, + FDTDEC_RESERVED_MEMORY_NO_MAP); +} +#endif + /* * Update native-mode in display-timings from display environment variable. * The node to update are specified by path. |