Nios2: do_boom_linux(): kernel gunzip input data integrity problem due to

[karo-tx-uboot.git] / lib_nios2 / bootm.c

diff --git a/lib_nios2/bootm.c b/lib_nios2/bootm.c
index 18cf7736efba956cc892db2f45da4900d1921b89..675bfac63a59d5475d160d887fa45b2dbb8618f8 100644 (file)
--- a/lib_nios2/bootm.c
+++ b/lib_nios2/bootm.c
@@ -24,40 +24,24 @@
 #include <common.h>
 #include <command.h>
 #include <asm/byteorder.h>
+#include <asm/cache.h>
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-
-void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
-               bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
 {
-       ulong   ep = 0;
+       void (*kernel)(void) = (void (*)(void))images->ep;
+
+       if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
+               return 1;
 
-       /* find kernel entry point */
-       if (images->legacy_hdr_valid) {
-               ep = image_get_ep (&images->legacy_hdr_os_copy);
-#if defined(CONFIG_FIT)
-       } else if (images->fit_uname_os) {
-               int ret = fit_image_get_entry (images->fit_hdr_os,
-                               images->fit_noffset_os, &ep);
-               if (ret) {
-                       puts ("Can't get entry point property!\n");
-                       goto error;
-               }
-#endif
-       } else {
-               puts ("Could not find kernel entry point!\n");
-               goto error;
-       }
-       void (*kernel)(void) = (void (*)(void))ep;
+       /* flushes data and instruction caches before calling the kernel */
+       flush_dcache (0,CONFIG_SYS_DCACHE_SIZE);
+       flush_icache (0,CONFIG_SYS_ICACHE_SIZE);
 
        /* For now we assume the Microtronix linux ... which only
         * needs to be called ;-)
         */
        kernel ();
        /* does not return */
-       return;
 
-error:
-       do_reset (cmdtp, flag, argc, argv);
-       return;
+       return 1;
 }