Merge branch 'u-boot/master'

[karo-tx-uboot.git] / common / cmd_itest.c

diff --git a/common/cmd_itest.c b/common/cmd_itest.c
index 10d53a063be915c47b8f42fc2af797960ba8ce4a..ae2527bfecdb8e2d55ad211bf6de6715a922f752 100644 (file)
--- a/common/cmd_itest.c
+++ b/common/cmd_itest.c
@@ -2,7 +2,7 @@
  * (C) Copyright 2003
  * Tait Electronics Limited, Christchurch, New Zealand
  *
- * SPDX-License-Identifier:    GPL-2.0+ 
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 /*
@@ -71,6 +71,19 @@ static char * evalstr(char *s)
        /* if the parameter starts with a * then assume a string pointer else its a literal */
        if (s[0] == '*') {
                return (char *)simple_strtoul(&s[1], NULL, 16);
+       } else if (s[0] == '$') {
+               int i = 2;
+
+               if (s[1] != '{')
+                       return NULL;
+
+               while (s[i] != '}') {
+                       if (s[i] == 0)
+                               return NULL;
+                       i++;
+               }
+               s[i] = 0;
+               return  getenv((const char *)&s[2]);
        } else {
                return s;
        }