realtek: rt-loader: rename flash loading function

The loading function searches the image on flash (or its memory
copy). Rename it to make clearer what the function does. Adapt
comments accordingly.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/21332
Signed-off-by: Robert Marko <robimarko@gmail.com>

diff --git a/target/linux/realtek/image/rt-loader/src/main.c b/target/linux/realtek/image/rt-loader/src/main.c
index f78d91ded84c8240bc434c0922024926c7a41471..e8ac501607e1af9a1a9c6558eac2ef674ad446dd 100644 (file)
--- a/target/linux/realtek/image/rt-loader/src/main.c
+++ b/target/linux/realtek/image/rt-loader/src/main.c
@@ -144,10 +144,14 @@ void search_image(void **image_addr, int *image_size, void **load_addr)
        }
 }
 
-void load_kernel(void *flash_start)
+void load_uimage_from_flash(void *flash_start)
 {
        void *flash_addr = flash_start;
 
+       /*
+        * Loader has been started standalone. So no piggy backed kernel. Search
+        * flash for kernel uImage and copy it to memory before the loader.
+        */
        printf("Searching for uImage starting at 0x%08x ...\n", flash_addr);
 
        search_image(&flash_addr, &_kernel_data_size, &_kernel_load_addr);
@@ -186,11 +190,11 @@ void main(unsigned long reg_a0, unsigned long reg_a1,
        }
 
        /*
-        * Check if we have been started standalone. So no piggy backed kernel.
-        * Search flash for kernel uImage and copy it to memory before the loader.
+        * Usually the loader expects a piggy-backed lzma compressed kernel stream.
+        * Evaluate alternative configurations for kernel loading and decompression.
         */
        if (flash_start)
-               load_kernel(flash_start);
+               load_uimage_from_flash(flash_start);
        else if (kernel_addr)
                _kernel_load_addr = kernel_addr;