diff --git a/Kconfig b/Kconfig index 46a31f45b9..0edd4ec2b0 100644 --- a/Kconfig +++ b/Kconfig @@ -444,6 +444,15 @@ config SPL_LOAD_FIT particular it can handle selecting from multiple device tree and passing the correct one to U-Boot. +config SPL_LOAD_FIT_APPLY_OVERLAY + bool "Enable SPL applying DT overlays from FIT" + depends on SPL_LOAD_FIT + select OF_LIBFDT_OVERLAY + help + The device tree is loaded from the FIT image. Allow the SPL is to + also load device-tree overlays from the FIT image an apply them + over the device tree. + config SPL_LOAD_FIT_FULL bool "Enable SPL loading U-Boot as a FIT (full fitImage features)" select SPL_FIT diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c index 346f9edaa5..39e406b237 100644 --- a/common/spl/spl_fit.c +++ b/common/spl/spl_fit.c @@ -281,7 +281,7 @@ static int spl_fit_append_fdt(struct spl_image_info *spl_image, void *fit, int images, ulong base_offset) { struct spl_image_info image_info; - int node, ret = 0; + int node, ret = 0, index = 0; /* * Use the address following the image as target address for the @@ -290,7 +290,7 @@ static int spl_fit_append_fdt(struct spl_image_info *spl_image, image_info.load_addr = spl_image->load_addr + spl_image->size; /* Figure out which device tree the board wants to use */ - node = spl_fit_get_image_node(fit, images, FIT_FDT_PROP, 0); + node = spl_fit_get_image_node(fit, images, FIT_FDT_PROP, index++); if (node < 0) { debug("%s: cannot find FDT node\n", __func__); @@ -315,8 +315,32 @@ static int spl_fit_append_fdt(struct spl_image_info *spl_image, #if !CONFIG_IS_ENABLED(FIT_IMAGE_TINY) /* Try to make space, so we can inject details on the loadables */ ret = fdt_shrink_to_minimum(spl_image->fdt_addr, 8192); + if (ret < 0) + return ret; #endif + if (CONFIG_IS_ENABLED(LOAD_FIT_APPLY_OVERLAY)) { + for (; ; index++) { + node = spl_fit_get_image_node(fit, images, FIT_FDT_PROP, + index); + if (node < 0) { + debug("%s: No additional FDT node\n", __func__); + return 0; + } + ret = spl_load_fit_image(info, sector, fit, base_offset, + node, &image_info); + if (ret < 0) + return ret; + + ret = fdt_overlay_apply_verbose(spl_image->fdt_addr, + (void *)image_info.load_addr); + if (ret) + return ret; + + debug("%s: DT overlay %s applied\n", __func__, + fit_get_name(fit, node, NULL)); + } + } return ret; }