davinci_emac: conditionally compile specific PHY support

[platform/kernel/u-boot.git] / tools / envcrc.c

diff --git a/tools/envcrc.c b/tools/envcrc.c
index d1e84b3..51e3f54 100644 (file)
--- a/tools/envcrc.c
+++ b/tools/envcrc.c
@@ -51,11 +51,19 @@
 # if defined(CONFIG_ENV_ADDR_REDUND) && !defined(CONFIG_ENV_SIZE_REDUND)
 #  define CONFIG_ENV_SIZE_REDUND       CONFIG_ENV_SIZE
 # endif
+# if (CONFIG_ENV_ADDR >= CONFIG_SYS_MONITOR_BASE) && \
+     ((CONFIG_ENV_ADDR + CONFIG_ENV_SIZE) <= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN))
+#  define ENV_IS_EMBEDDED      1
+# endif
 # if defined(CONFIG_ENV_ADDR_REDUND) || defined(CONFIG_ENV_OFFSET_REDUND)
 #  define CONFIG_SYS_REDUNDAND_ENVIRONMENT     1
 # endif
 #endif /* CONFIG_ENV_IS_IN_FLASH */
 
+#if defined(ENV_IS_EMBEDDED) && !defined(CONFIG_BUILD_ENVCRC)
+# define CONFIG_BUILD_ENVCRC 1
+#endif
+
 #ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
 # define ENV_HEADER_SIZE       (sizeof(uint32_t) + 1)
 #else
@@ -65,16 +73,20 @@
 #define ENV_SIZE (CONFIG_ENV_SIZE - ENV_HEADER_SIZE)
 
 
-extern uint32_t crc32 (uint32_t, const unsigned char *, unsigned int);
-
+#ifdef CONFIG_BUILD_ENVCRC
+# include <environment.h>
 extern unsigned int env_size;
-extern unsigned char environment;
+extern env_t environment;
+#endif /* CONFIG_BUILD_ENVCRC */
+
+extern uint32_t crc32 (uint32_t, const unsigned char *, unsigned int);
 
 int main (int argc, char **argv)
 {
+#ifdef CONFIG_BUILD_ENVCRC
        unsigned char pad = 0x00;
        uint32_t crc;
-       unsigned char *envptr = &environment,
+       unsigned char *envptr = (unsigned char *)&environment,
                *dataptr = envptr + ENV_HEADER_SIZE;
        unsigned int datasize = ENV_SIZE;
        unsigned int eoe;
@@ -126,6 +138,8 @@ int main (int argc, char **argv)
        } else {
                printf ("0x%08X\n", crc);
        }
-
+#else
+       printf ("0\n");
+#endif
        return EXIT_SUCCESS;
 }