splash_source: add support for filesystem formatted mmc
Add support for loading splash image from an SD card formatted with
a filesystem. Update boards to maintain original behavior where needed.
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Tom Rini <trini@konsulko.com>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
diff --git a/common/splash_source.c b/common/splash_source.c
index 4820c12..7de8695 100644
--- a/common/splash_source.c
+++ b/common/splash_source.c
@@ -13,6 +13,7 @@
#include <spi_flash.h>
#include <spi.h>
#include <bmp_layout.h>
+#include <fs.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -103,6 +104,56 @@
return -EFAULT;
}
+static int splash_select_fs_dev(struct splash_location *location)
+{
+ int res;
+
+ switch (location->storage) {
+ case SPLASH_STORAGE_MMC:
+ res = fs_set_blk_dev("mmc", location->devpart, FS_TYPE_ANY);
+ break;
+ default:
+ printf("Error: unsupported location storage.\n");
+ return -ENODEV;
+ }
+
+ if (res)
+ printf("Error: could not access storage.\n");
+
+ return res;
+}
+
+#define SPLASH_SOURCE_DEFAULT_FILE_NAME "splash.bmp"
+
+static int splash_load_fs(struct splash_location *location, u32 bmp_load_addr)
+{
+ int res;
+ loff_t bmp_size;
+ char *splash_file;
+
+ splash_file = getenv("splashfile");
+ if (!splash_file)
+ splash_file = SPLASH_SOURCE_DEFAULT_FILE_NAME;
+
+ res = splash_select_fs_dev(location);
+ if (res)
+ return res;
+
+ res = fs_size(splash_file, &bmp_size);
+ if (res) {
+ printf("Error (%d): cannot determine file size\n", res);
+ return res;
+ }
+
+ if (bmp_load_addr + bmp_size >= gd->start_addr_sp) {
+ printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n");
+ return -EFAULT;
+ }
+
+ splash_select_fs_dev(location);
+ return fs_read(splash_file, bmp_load_addr, 0, 0, NULL);
+}
+
/**
* select_splash_location - return the splash location based on board support
* and env variable "splashsource".
@@ -172,5 +223,10 @@
if (!splash_location)
return -EINVAL;
- return splash_load_raw(splash_location, bmp_load_addr);
+ if (splash_location->flags & SPLASH_STORAGE_RAW)
+ return splash_load_raw(splash_location, bmp_load_addr);
+ else if (splash_location->flags & SPLASH_STORAGE_FS)
+ return splash_load_fs(splash_location, bmp_load_addr);
+
+ return -EINVAL;
}