sun60iw2: load BPI-M8 logo from Armbian bootfs

arch/arm/dts/sun60i-a733-bananapi-m8.dts

@@ -52,6 +52,7 @@
 
 		platform:platform@45000004 {
 			device_type = "platform";
+			dragonboard_test = <0>;
 
 		};
 

drivers/video/drm/sunxi_drm_drv.c

@@ -25,6 +25,7 @@
 #include <linux/list.h>
 #include <video.h>
 #include <command.h>
+#include <fs.h>
 #include <drm/drm_modes.h>
 #include <drm/drm_connector.h>
 #include <drm/drm_logo.h>
@@ -45,6 +46,85 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+static int armbian_unload_file(struct file_info_t *file)
+{
+	if (!file)
+		return -1;
+
+	free(file->name);
+	free(file->path);
+	free(file->file_addr);
+	free(file);
+
+	return 0;
+}
+
+static int armbian_print_file_info(struct file_info_t *file)
+{
+	if (!file)
+		return -1;
+
+	pr_err("File name:%s\n", file->name);
+	pr_err("Partition name:%s\n", file->path);
+	pr_err("File size:%u\n", file->file_size);
+	pr_err("File addr:%p\n", file->file_addr);
+
+	return 0;
+}
+
+static struct file_info_t *load_armbian_boot_logo(const char *name)
+{
+	loff_t file_size, read_size;
+	struct file_info_t *file;
+
+	if (!name || fs_set_blk_dev("mmc", "0:1", FS_TYPE_FAT))
+		return NULL;
+
+	if (!fs_exists(name))
+		return NULL;
+
+	if (fs_size(name, &file_size) || !file_size)
+		return NULL;
+
+	file = malloc(sizeof(*file));
+	if (!file)
+		return NULL;
+
+	memset(file, 0, sizeof(*file));
+	file->file_size = (unsigned int)file_size;
+	file->name = malloc(strlen(name) + 1);
+	file->path = malloc(strlen("mmc0:1") + 1);
+	file->file_addr = memalign(4096, file->file_size);
+	if (!file->name || !file->path || !file->file_addr)
+		goto err_free;
+
+	strncpy(file->name, name, strlen(name) + 1);
+	strncpy(file->path, "mmc0:1", strlen("mmc0:1") + 1);
+
+	if (fs_read(name, (ulong)file->file_addr, 0, 0, &read_size) ||
+	    read_size != file_size)
+		goto err_free;
+
+#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
+	flush_dcache_range((ulong)file->file_addr,
+			   ALIGN((ulong)(file->file_addr + file->file_size),
+				 CONFIG_SYS_CACHELINE_SIZE));
+#endif
+
+	file->unload_file = armbian_unload_file;
+	file->print_file_info = armbian_print_file_info;
+
+	return file;
+
+err_free:
+	free(file->name);
+	free(file->path);
+	free(file->file_addr);
+	free(file);
+
+	return NULL;
+}
+
 int check_drm_debug_mode(void)
 {
 	int debug_mode;
@@ -825,10 +905,17 @@ static int load_bmp_logo(struct display_state *state, char *bmp_name)
 		state->logo = NULL;
 	}
 
-	state->logo = load_file(bmp_name, "bootloader");
+	state->logo = load_armbian_boot_logo("boot.bmp");
-	if (!state->logo) {
+	if (!state->logo)
+		state->logo = load_armbian_boot_logo("bootlogo.bmp");
+	if (!state->logo && strcmp(bmp_name, "boot.bmp") &&
+	    strcmp(bmp_name, "bootlogo.bmp"))
+		state->logo = load_armbian_boot_logo(bmp_name);
+
+	if (!state->logo)
+		state->logo = load_file(bmp_name, "bootloader");
+	if (!state->logo)
 		state->logo = load_file(bmp_name, "boot-resource");
-	}
 
 	if (!state->logo) {
 		DRM_ERROR("Can not load %s file!\n", bmp_name);